SEC Info - Shutterfly Inc - ‘10-Q’ for 6/30/19

SEC Info℠

Home

Help

Please Sign In

Shutterfly Inc – ‘10-Q’ for 6/30/19 – ‘JSON’

On: Wednesday, 8/7/19, at 5:17pm ET · For: 6/30/19 · Accession #: 1125920-19-22 · File #: 1-33031

  As Of               Filer                 Filing    For·On·As Docs:Size

 8/07/19  Shutterfly Inc                    10-Q        6/30/19   95:11M

Quarterly Report — Form 10-Q — Sect. 13 / 15(d) – SEA’34
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-Q        Quarterly Report                                    HTML   1.36M 
 2: EX-31.01    Certification -- §302 - SOA'02                      HTML     32K 
 3: EX-31.02    Certification -- §302 - SOA'02                      HTML     32K 
 4: EX-32.01    Certification -- §906 - SOA'02                      HTML     28K 
 5: EX-32.02    Certification -- §906 - SOA'02                      HTML     28K 
12: R1          Document and Entity Information                     HTML     79K 
13: R2          Condensed Consolidated Balance Sheets               HTML    117K 
14: R3          Condensed Consolidated Balance Sheets (Unaudited)   HTML     35K 
                (Parenthetical)                                                  
15: R4          Condensed Consolidated Statements of Operations     HTML     72K 
16: R5          Condensed Consolidated Statements of Comprehensive  HTML     57K 
                Loss                                                             
17: R6          Condensed Consolidated Statements of Cash Flows     HTML    128K 
18: R7          Condensed Consolidated Statements of Stockholders'  HTML     88K 
                Equity                                                           
19: R8          The Company and Summary of Significant Accounting   HTML     57K 
                Policies                                                         
20: R9          Revenues                                            HTML     55K 
21: R10         Acquisition                                         HTML     42K 
22: R11         Stock-Based Compensation                            HTML     95K 
23: R12         Net Loss Per Share                                  HTML     61K 
24: R13         Investments                                         HTML     90K 
25: R14         Fair Value Measurement                              HTML     62K 
26: R15         Balance Sheet Components                            HTML    132K 
27: R16         Debt                                                HTML    100K 
28: R17         Segment Reporting                                   HTML    176K 
29: R18         Leases                                              HTML    197K 
30: R19         Commitments and Contingencies                       HTML     52K 
31: R20         Share Repurchase Program                            HTML     29K 
32: R21         Restructuring                                       HTML     58K 
33: R22         Derivative Financial Instruments                    HTML     57K 
34: R23         The Company and Summary of Significant Accounting   HTML     60K 
                Policies (Policies)                                              
35: R24         Revenues (Tables)                                   HTML     52K 
36: R25         Acquisition (Tables)                                HTML     39K 
37: R26         Stock-Based Compensation (Tables)                   HTML     93K 
38: R27         Net Loss Per Share (Tables)                         HTML     60K 
39: R28         Investments (Tables)                                HTML     89K 
40: R29         Fair Value Measurement (Tables)                     HTML     65K 
41: R30         Balance Sheet Components (Tables)                   HTML    137K 
42: R31         Debt (Tables)                                       HTML    102K 
43: R32         Segment Reporting (Tables)                          HTML    176K 
44: R33         Leases (Tables)                                     HTML    163K 
45: R34         Restructuring (Tables)                              HTML     55K 
46: R35         Derivative Financial Instruments (Tables)           HTML     58K 
47: R36         The Company and Summary of Significant Accounting   HTML     71K 
                Policies - Narrative (Details)                                   
48: R37         Revenues - Consumer Revenues by Brand (Details)     HTML     43K 
49: R38         Revenues - Deferred Revenues (Details)              HTML     27K 
50: R39         Acquisition - Narrative (Details)                   HTML     42K 
51: R40         Acquisition - Pro Forma Information (Details)       HTML     36K 
52: R41         Stock-Based Compensation - Stock-Based              HTML     40K 
                Compensation Expense (Details)                                   
53: R42         Stock-Based Compensation - Stock Option Activity    HTML     82K 
                (Details)                                                        
54: R43         Stock-Based Compensation - Stock-Based              HTML     68K 
                Compensation (Details)                                           
55: R44         Stock-Based Compensation - Valuation of Stock       HTML     36K 
                Options (Details)                                                
56: R45         Stock-Based Compensation - Restricted Stock Unit    HTML     53K 
                Activity (Details)                                               
57: R46         Net Loss Per Share (Details)                        HTML     37K 
58: R47         Net Loss Per Share - Schedule of Antidilutive       HTML     33K 
                Securities Excluded from Computation of Earnings                 
                per Share (Details)                                              
59: R48         Net Loss Per Share - Narrative (Details)            HTML     34K 
60: R49         Investments - Schedule of Estimated Fair Value      HTML     66K 
                (Details)                                                        
61: R50         Investments - Summary of Contractual Maturities     HTML     33K 
                (Details)                                                        
62: R51         Fair Value Measurement - Cash Equivalents and       HTML     42K 
                Investments (Details)                                            
63: R52         Fair Value Measurement - Derivative (Liabilities)   HTML     35K 
                Assets (Details)                                                 
64: R53         Fair Value Measurement - Borrowings (Details)       HTML     30K 
65: R54         Balance Sheet Components - Assets Held for Sale     HTML     37K 
                (Details)                                                        
66: R55         Balance Sheet Components - Prepaid Expenses and     HTML     35K 
                Other Current Assets (Details)                                   
67: R56         Balance Sheet Components - Property and Equipment,  HTML     66K 
                Net (Details)                                                    
68: R57         Balance Sheet Components - Intangible Assets        HTML     72K 
                (Details)                                                        
69: R58         Balance Sheet Components - Goodwill (Details)       HTML     38K 
70: R59         Balance Sheet Components - Accrued Liabilities      HTML     46K 
                (Details)                                                        
71: R60         Balance Sheet Components - Other Liabilities        HTML     38K 
                (Details)                                                        
72: R61         Balance Sheet Components - Accumulated Other        HTML     43K 
                Comprehensive (Loss) Income (Details)                            
73: R62         Debt - Schedule of Debt (Details)                   HTML     62K 
74: R63         Debt - Narrative (Details)                          HTML     58K 
75: R64         Debt - Schedule of Effective Interest Rates         HTML     36K 
                (Details)                                                        
76: R65         Debt - Schedule of Interest Expense (Details)       HTML     35K 
77: R66         Debt - Summary of Maturities of Assumed Debt        HTML     49K 
                (Details)                                                        
78: R67         Segment Reporting - Segment Information (Details)   HTML     66K 
79: R68         Segment Reporting - Reconciliation of Operating     HTML     77K 
                Segments to Consolidated (Details)                               
80: R69         Leases - Narrative (Details)                        HTML     39K 
81: R70         Leases - ROU Assets and Lease Liabilities           HTML     45K 
                (Details)                                                        
82: R71         Leases - Components of Lease Cost (Details)         HTML     42K 
83: R72         Leases - Future Minimum Payments of Leases          HTML     83K 
                (Details)                                                        
84: R73         Leases - Future Minimum Payments Under              HTML     83K 
                Non-Cancelable Leases and Build-to-Suite                         
                Arrangements (Details)                                           
85: R74         Leases - Lease Term and Discount Rate (Details)     HTML     35K 
86: R75         Leases - Supplemental Cash Flow Information         HTML     38K 
                (Details)                                                        
87: R76         Commitments and Contingencies - Narrative           HTML     32K 
                (Details)                                                        
88: R77         Share Repurchase Program - Narrative (Details)      HTML     29K 
89: R78         Restructuring - Narrative (Details)                 HTML     66K 
90: R79         Restructuring - Restructuring Reserve Activities    HTML     52K 
                (Details)                                                        
91: R80         Derivative Financial Instruments (Details)          HTML     60K 
93: XML         IDEA XML File -- Filing Summary                      XML    171K 
11: XML         XBRL Instance -- sfly-20190630_htm                   XML   3.14M 
92: EXCEL       IDEA Workbook of Financial Reports                  XLSX    104K 
 7: EX-101.CAL  XBRL Calculations -- sfly-20190630_cal               XML    373K 
 8: EX-101.DEF  XBRL Definitions -- sfly-20190630_def                XML    714K 
 9: EX-101.LAB  XBRL Labels -- sfly-20190630_lab                     XML   1.90M 
10: EX-101.PRE  XBRL Presentations -- sfly-20190630_pre              XML   1.17M 
 6: EX-101.SCH  XBRL Schema -- sfly-20190630                         XSD    197K 
94: JSON        XBRL Instance as JSON Data -- MetaLinks              414±   626K 
95: ZIP         XBRL Zipped Folder -- 0001125920-19-000022-xbrl      Zip    411K

‘JSON’ — XBRL Instance as JSON Data — MetaLinks

This File is an XBRL Instance as JavaScript Object Notation (JSON) Data.

{
"instance":  {
    "sfly-20190630.htm":  {
        "axisCustom":  0,
        "axisStandard":  32,
        "contextCount":  268,
        "dts":  {
            "calculationLink":  {
                "local":  [
                    "sfly-20190630_cal.xml"
                    ]
                },
            "definitionLink":  {
                "local":  [
                    "sfly-20190630_def.xml"
                    ],
                "remote":  [
                    "http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-eedm-def-2018-01-31.xml",
                    "http://xbrl.fasb.org/srt/2018/elts/srt-eedm1-def-2018-01-31.xml"
                    ]
                },
            "inline":  {
                "local":  [
                    "sfly-20190630.htm"
                    ]
                },
            "labelLink":  {
                "local":  [
                    "sfly-20190630_lab.xml"
                    ],
                "remote":  [
                    "http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-doc-2018-01-31.xml",
                    "https://xbrl.sec.gov/dei/2019/dei-doc-2019-01-31.xml"
                    ]
                },
            "presentationLink":  {
                "local":  [
                    "sfly-20190630_pre.xml"
                    ]
                },
            "referenceLink":  {
                "remote":  [
                    "http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-ref-2018-01-31.xml",
                    "https://xbrl.sec.gov/dei/2019/dei-ref-2019-01-31.xml"
                    ]
                },
            "schema":  {
                "local":  [
                    "sfly-20190630.xsd"
                    ],
                "remote":  [
                    "http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd",
                    "http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd",
                    "http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd",
                    "http://www.xbrl.org/2003/xl-2003-12-31.xsd",
                    "http://www.xbrl.org/2003/xlink-2003-12-31.xsd",
                    "http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd",
                    "http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd",
                    "http://www.xbrl.org/2005/xbrldt-2005.xsd",
                    "http://www.xbrl.org/2006/ref-2006-02-27.xsd",
                    "http://xbrl.fasb.org/srt/2018/elts/srt-types-2018-01-31.xsd",
                    "http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd",
                    "http://xbrl.fasb.org/us-gaap/2018/elts/us-roles-2018-01-31.xsd",
                    "http://xbrl.fasb.org/srt/2018/elts/srt-roles-2018-01-31.xsd",
                    "http://xbrl.sec.gov/country/2017/country-2017-01-31.xsd",
                    "http://xbrl.fasb.org/us-gaap/2018/elts/us-types-2018-01-31.xsd",
                    "https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd",
                    "https://xbrl.sec.gov/stpr/2018/stpr-2018-01-31.xsd",
                    "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd",
                    "http://www.xbrl.org/lrr/role/net-2009-12-16.xsd",
                    "http://www.xbrl.org/lrr/role/deprecated-2009-12-16.xsd",
                    "http://www.xbrl.org/lrr/role/reference-2009-12-16.xsd",
                    "http://xbrl.fasb.org/us-gaap/2018/elts/us-parts-codification-2018-01-31.xsd"
                    ]
                }
            },
        "elementCount":  650,
        "entityCount":  1,
        "hidden":  {
            "http://fasb.org/us-gaap/2018-01-31":  4,
            "http://www.shutterfly.com/20190630":  1,
            "http://xbrl.sec.gov/dei/2019-01-31":  5,
            "total":  10
            },
        "keyCustom":  65,
        "keyStandard":  413,
        "memberCustom":  33,
        "memberStandard":  47,
        "nsprefix":  "sfly",
        "nsuri":  "http://www.shutterfly.com/20190630",
        "report":  {
            "R1":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "dei:DocumentType",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "document",
                "isDefault":  "true",
                "longName":  "0001001 - Document - Document and Entity Information",
                "role":  "http://www.shutterfly.com/role/DocumentandEntityInformation",
                "shortName":  "Document and Entity Information",
                "subGroupType":  "",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "dei:DocumentType",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R10":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:BusinessCombinationDisclosureTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2108103 - Disclosure - Acquisition",
                "role":  "http://www.shutterfly.com/role/Acquisition",
                "shortName":  "Acquisition",
                "subGroupType":  "",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:BusinessCombinationDisclosureTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R11":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2112104 - Disclosure - Stock-Based Compensation",
                "role":  "http://www.shutterfly.com/role/StockBasedCompensation",
                "shortName":  "Stock-Based Compensation",
                "subGroupType":  "",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R12":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:EarningsPerShareTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2119105 - Disclosure - Net Loss Per Share",
                "role":  "http://www.shutterfly.com/role/NetLossPerShare",
                "shortName":  "Net Loss Per Share",
                "subGroupType":  "",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:EarningsPerShareTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R13":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2124106 - Disclosure - Investments",
                "role":  "http://www.shutterfly.com/role/Investments",
                "shortName":  "Investments",
                "subGroupType":  "",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R14":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:FairValueDisclosuresTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2128107 - Disclosure - Fair Value Measurement",
                "role":  "http://www.shutterfly.com/role/FairValueMeasurement",
                "shortName":  "Fair Value Measurement",
                "subGroupType":  "",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:FairValueDisclosuresTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R15":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:SupplementalBalanceSheetDisclosuresTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2133108 - Disclosure - Balance Sheet Components",
                "role":  "http://www.shutterfly.com/role/BalanceSheetComponents",
                "shortName":  "Balance Sheet Components",
                "subGroupType":  "",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:SupplementalBalanceSheetDisclosuresTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R16":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:LongTermDebtTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2143109 - Disclosure - Debt",
                "role":  "http://www.shutterfly.com/role/Debt",
                "shortName":  "Debt",
                "subGroupType":  "",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:LongTermDebtTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R17":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:SegmentReportingDisclosureTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2150110 - Disclosure - Segment Reporting",
                "role":  "http://www.shutterfly.com/role/SegmentReporting",
                "shortName":  "Segment Reporting",
                "subGroupType":  "",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:SegmentReportingDisclosureTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R18":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "us-gaap:LesseeOperatingLeasesTextBlock",
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:LesseeFinanceLeasesTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2154111 - Disclosure - Leases",
                "role":  "http://www.shutterfly.com/role/Leases",
                "shortName":  "Leases",
                "subGroupType":  "",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "us-gaap:LesseeOperatingLeasesTextBlock",
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:LesseeFinanceLeasesTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R19":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2163112 - Disclosure - Commitments and Contingencies",
                "role":  "http://www.shutterfly.com/role/CommitmentsandContingencies",
                "shortName":  "Commitments and Contingencies",
                "subGroupType":  "",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R2":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:CashAndCashEquivalentsAtCarryingValue",
                    "reportCount":  1,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "statement",
                "isDefault":  "false",
                "longName":  "1001002 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS",
                "role":  "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS",
                "shortName":  "CONDENSED CONSOLIDATED BALANCE SHEETS",
                "subGroupType":  "",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "lang":  null,
                    "name":  "us-gaap:ShortTermInvestments",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R20":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "sfly:StockRepurchaseProgramTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2165113 - Disclosure - Share Repurchase Program",
                "role":  "http://www.shutterfly.com/role/ShareRepurchaseProgram",
                "shortName":  "Share Repurchase Program",
                "subGroupType":  "",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "sfly:StockRepurchaseProgramTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R21":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:RestructuringAndRelatedActivitiesDisclosureTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2167114 - Disclosure - Restructuring",
                "role":  "http://www.shutterfly.com/role/Restructuring",
                "shortName":  "Restructuring",
                "subGroupType":  "",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:RestructuringAndRelatedActivitiesDisclosureTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R22":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2171115 - Disclosure - Derivative Financial Instruments",
                "role":  "http://www.shutterfly.com/role/DerivativeFinancialInstruments",
                "shortName":  "Derivative Financial Instruments",
                "subGroupType":  "",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R23":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:BasisOfAccountingPolicyPolicyTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2202201 - Disclosure - The Company and Summary of Significant Accounting Policies (Policies)",
                "role":  "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesPolicies",
                "shortName":  "The Company and Summary of Significant Accounting Policies (Policies)",
                "subGroupType":  "policies",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:BasisOfAccountingPolicyPolicyTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R24":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:DisaggregationOfRevenueTableTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2305301 - Disclosure - Revenues (Tables)",
                "role":  "http://www.shutterfly.com/role/RevenuesTables",
                "shortName":  "Revenues (Tables)",
                "subGroupType":  "tables",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:DisaggregationOfRevenueTableTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R25":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:BusinessAcquisitionProFormaInformationTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2309302 - Disclosure - Acquisition (Tables)",
                "role":  "http://www.shutterfly.com/role/AcquisitionTables",
                "shortName":  "Acquisition (Tables)",
                "subGroupType":  "tables",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:BusinessAcquisitionProFormaInformationTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R26":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2313303 - Disclosure - Stock-Based Compensation (Tables)",
                "role":  "http://www.shutterfly.com/role/StockBasedCompensationTables",
                "shortName":  "Stock-Based Compensation (Tables)",
                "subGroupType":  "tables",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R27":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2320304 - Disclosure - Net Loss Per Share (Tables)",
                "role":  "http://www.shutterfly.com/role/NetLossPerShareTables",
                "shortName":  "Net Loss Per Share (Tables)",
                "subGroupType":  "tables",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R28":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:DebtSecuritiesAvailableForSaleTableTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2325305 - Disclosure - Investments (Tables)",
                "role":  "http://www.shutterfly.com/role/InvestmentsTables",
                "shortName":  "Investments (Tables)",
                "subGroupType":  "tables",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:DebtSecuritiesAvailableForSaleTableTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R29":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:FairValueAssetsMeasuredOnRecurringBasisTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2329306 - Disclosure - Fair Value Measurement (Tables)",
                "role":  "http://www.shutterfly.com/role/FairValueMeasurementTables",
                "shortName":  "Fair Value Measurement (Tables)",
                "subGroupType":  "tables",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:FairValueAssetsMeasuredOnRecurringBasisTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R3":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "us-gaap:CommonStockParOrStatedValuePerShare",
                        "span",
                        "div",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "INF",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:CommonStockParOrStatedValuePerShare",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usdPerShare",
                    "xsiNil":  "false"
                    },
                "groupType":  "statement",
                "isDefault":  "false",
                "longName":  "1002003 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical)",
                "role":  "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUnauditedParenthetical",
                "shortName":  "CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical)",
                "subGroupType":  "parenthetical",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "us-gaap:CommonStockParOrStatedValuePerShare",
                        "span",
                        "div",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "INF",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:CommonStockParOrStatedValuePerShare",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usdPerShare",
                    "xsiNil":  "false"
                    }
                },
            "R30":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2334307 - Disclosure - Balance Sheet Components (Tables)",
                "role":  "http://www.shutterfly.com/role/BalanceSheetComponentsTables",
                "shortName":  "Balance Sheet Components (Tables)",
                "subGroupType":  "tables",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R31":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:ScheduleOfDebtInstrumentsTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2344308 - Disclosure - Debt (Tables)",
                "role":  "http://www.shutterfly.com/role/DebtTables",
                "shortName":  "Debt (Tables)",
                "subGroupType":  "tables",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:ScheduleOfDebtInstrumentsTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R32":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2351309 - Disclosure - Segment Reporting (Tables)",
                "role":  "http://www.shutterfly.com/role/SegmentReportingTables",
                "shortName":  "Segment Reporting (Tables)",
                "subGroupType":  "tables",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R33":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "ix:continuation",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "sfly:ScheduleOfRightofUseAssetsAndLeaseLiabilitiesTableTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2355310 - Disclosure - Leases (Tables)",
                "role":  "http://www.shutterfly.com/role/LeasesTables",
                "shortName":  "Leases (Tables)",
                "subGroupType":  "tables",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "ix:continuation",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "sfly:ScheduleOfRightofUseAssetsAndLeaseLiabilitiesTableTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R34":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:ScheduleOfRestructuringAndRelatedCostsTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2368311 - Disclosure - Restructuring (Tables)",
                "role":  "http://www.shutterfly.com/role/RestructuringTables",
                "shortName":  "Restructuring (Tables)",
                "subGroupType":  "tables",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:ScheduleOfRestructuringAndRelatedCostsTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R35":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2372312 - Disclosure - Derivative Financial Instruments (Tables)",
                "role":  "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsTables",
                "shortName":  "Derivative Financial Instruments (Tables)",
                "subGroupType":  "tables",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R36":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  "INF",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:NumberOfOperatingSegments",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "segment",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2403402 - Disclosure - The Company and Summary of Significant Accounting Policies - Narrative (Details)",
                "role":  "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails",
                "shortName":  "The Company and Summary of Significant Accounting Policies - Narrative (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  "INF",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:NumberOfOperatingSegments",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "segment",
                    "xsiNil":  "false"
                    }
                },
            "R37":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:DisaggregationOfRevenueTableTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i39df38755b734c2ebfb93f373177095e_D20190401-20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax",
                    "reportCount":  1,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2406403 - Disclosure - Revenues - Consumer Revenues by Brand (Details)",
                "role":  "http://www.shutterfly.com/role/RevenuesConsumerRevenuesbyBrandDetails",
                "shortName":  "Revenues - Consumer Revenues by Brand (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:DisaggregationOfRevenueTableTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ifea221481d734cd4b25de5d689768572_D20190401-20190630",
                    "decimals":  "-3",
                    "lang":  null,
                    "name":  "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R38":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i39df38755b734c2ebfb93f373177095e_D20190401-20190630",
                    "decimals":  "-5",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:ContractWithCustomerLiabilityRevenueRecognized",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2407404 - Disclosure - Revenues - Deferred Revenues (Details)",
                "role":  "http://www.shutterfly.com/role/RevenuesDeferredRevenuesDetails",
                "shortName":  "Revenues - Deferred Revenues (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i39df38755b734c2ebfb93f373177095e_D20190401-20190630",
                    "decimals":  "-5",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:ContractWithCustomerLiabilityRevenueRecognized",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R39":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:Goodwill",
                    "reportCount":  1,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2410405 - Disclosure - Acquisition - Narrative (Details)",
                "role":  "http://www.shutterfly.com/role/AcquisitionNarrativeDetails",
                "shortName":  "Acquisition - Narrative (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4e4aff6fd02748b892f5ae3d8accf35c_D20180402-20180402",
                    "decimals":  "-5",
                    "lang":  null,
                    "name":  "us-gaap:PaymentsToAcquireBusinessesGross",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R4":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:DisaggregationOfRevenueTableTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i39df38755b734c2ebfb93f373177095e_D20190401-20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax",
                    "reportCount":  1,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "statement",
                "isDefault":  "false",
                "longName":  "1003004 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS",
                "role":  "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS",
                "shortName":  "CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS",
                "subGroupType":  "",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i39df38755b734c2ebfb93f373177095e_D20190401-20190630",
                    "decimals":  "-3",
                    "lang":  null,
                    "name":  "us-gaap:GeneralAndAdministrativeExpense",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R40":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "ix:continuation",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i0710c31e17064b8a8ccb712e5fbb3dc7_D20180401-20180630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:BusinessAcquisitionsProFormaRevenue",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2411406 - Disclosure - Acquisition - Pro Forma Information (Details)",
                "role":  "http://www.shutterfly.com/role/AcquisitionProFormaInformationDetails",
                "shortName":  "Acquisition - Pro Forma Information (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "ix:continuation",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i0710c31e17064b8a8ccb712e5fbb3dc7_D20180401-20180630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:BusinessAcquisitionsProFormaRevenue",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R41":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i39df38755b734c2ebfb93f373177095e_D20190401-20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:AllocatedShareBasedCompensationExpense",
                    "reportCount":  1,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2414407 - Disclosure - Stock-Based Compensation - Stock-Based Compensation Expense (Details)",
                "role":  "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationExpenseDetails",
                "shortName":  "Stock-Based Compensation - Stock-Based Compensation Expense (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i9292992e661844bc90034e9d246a60d0_D20190401-20190630",
                    "decimals":  "-3",
                    "lang":  null,
                    "name":  "us-gaap:AllocatedShareBasedCompensationExpense",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R42":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i7de0f08bce1c4fef85ded3d128ec279c_I20181231",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "shares",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2415408 - Disclosure - Stock-Based Compensation - Stock Option Activity (Details)",
                "role":  "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails",
                "shortName":  "Stock-Based Compensation - Stock Option Activity (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i7de0f08bce1c4fef85ded3d128ec279c_I20181231",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "shares",
                    "xsiNil":  "false"
                    }
                },
            "R43":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:ProceedsFromStockOptionsExercised",
                    "reportCount":  1,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2416409 - Disclosure - Stock-Based Compensation - Stock-Based Compensation (Details)",
                "role":  "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationDetails",
                "shortName":  "Stock-Based Compensation - Stock-Based Compensation (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "lang":  "en-US",
                    "name":  "us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R44":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "ix:continuation",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i640006af7bec42a6a8186d1279bab104_D20180101-20180630",
                    "decimals":  "INF",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "number",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2417410 - Disclosure - Stock-Based Compensation - Valuation of Stock Options (Details)",
                "role":  "http://www.shutterfly.com/role/StockBasedCompensationValuationofStockOptionsDetails",
                "shortName":  "Stock-Based Compensation - Valuation of Stock Options (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "ix:continuation",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i640006af7bec42a6a8186d1279bab104_D20180101-20180630",
                    "decimals":  "INF",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "number",
                    "xsiNil":  "false"
                    }
                },
            "R45":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i94178c23d88349d582a744c53a170e4c_I20181231",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber",
                    "reportCount":  1,
                    "unitRef":  "shares",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2418411 - Disclosure - Stock-Based Compensation - Restricted Stock Unit Activity (Details)",
                "role":  "http://www.shutterfly.com/role/StockBasedCompensationRestrictedStockUnitActivityDetails",
                "shortName":  "Stock-Based Compensation - Restricted Stock Unit Activity (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i0de0b6e5d2404ce881ea39c8b6460f63_D20190101-20190630",
                    "decimals":  "-3",
                    "lang":  null,
                    "name":  "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "shares",
                    "xsiNil":  "false"
                    }
                },
            "R46":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i39df38755b734c2ebfb93f373177095e_D20190401-20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:NetIncomeLoss",
                    "reportCount":  1,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2421412 - Disclosure - Net Loss Per Share (Details)",
                "role":  "http://www.shutterfly.com/role/NetLossPerShareDetails",
                "shortName":  "Net Loss Per Share (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  null
                },
            "R47":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "ix:continuation",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i39df38755b734c2ebfb93f373177095e_D20190401-20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "sfly:AntidilutiveSecuritiesIncludedInComputationOfEarningsPerShareAmount",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "shares",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2422413 - Disclosure - Net Loss Per Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings per Share (Details)",
                "role":  "http://www.shutterfly.com/role/NetLossPerShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsperShareDetails",
                "shortName":  "Net Loss Per Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings per Share (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "ix:continuation",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i39df38755b734c2ebfb93f373177095e_D20190401-20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "sfly:AntidilutiveSecuritiesIncludedInComputationOfEarningsPerShareAmount",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "shares",
                    "xsiNil":  "false"
                    }
                },
            "R48":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "ix:continuation",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i39df38755b734c2ebfb93f373177095e_D20190401-20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount",
                    "reportCount":  1,
                    "unitRef":  "shares",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2423414 - Disclosure - Net Loss Per Share - Narrative (Details)",
                "role":  "http://www.shutterfly.com/role/NetLossPerShareNarrativeDetails",
                "shortName":  "Net Loss Per Share - Narrative (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "ix:continuation",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i0710c31e17064b8a8ccb712e5fbb3dc7_D20180401-20180630",
                    "decimals":  "-3",
                    "lang":  null,
                    "name":  "us-gaap:IncrementalCommonSharesAttributableToConversionOfDebtSecurities",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "shares",
                    "xsiNil":  "false"
                    }
                },
            "R49":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:InvestmentsClassifiedByContractualMaturityDateTableTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:AvailableForSaleSecuritiesDebtSecurities",
                    "reportCount":  1,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2426415 - Disclosure - Investments - Schedule of Estimated Fair Value (Details)",
                "role":  "http://www.shutterfly.com/role/InvestmentsScheduleofEstimatedFairValueDetails",
                "shortName":  "Investments - Schedule of Estimated Fair Value (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "us-gaap:OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale",
                        "us-gaap:OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale",
                        "span",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i39df38755b734c2ebfb93f373177095e_D20190401-20190630",
                    "decimals":  "INF",
                    "lang":  null,
                    "name":  "us-gaap:OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R5":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i39df38755b734c2ebfb93f373177095e_D20190401-20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:NetIncomeLoss",
                    "reportCount":  1,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "statement",
                "isDefault":  "false",
                "longName":  "1004005 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS",
                "role":  "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS",
                "shortName":  "CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS",
                "subGroupType":  "",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i39df38755b734c2ebfb93f373177095e_D20190401-20190630",
                    "decimals":  "-3",
                    "lang":  null,
                    "name":  "us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R50":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:InvestmentsClassifiedByContractualMaturityDateTableTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2427416 - Disclosure - Investments - Summary of Contractual Maturities (Details)",
                "role":  "http://www.shutterfly.com/role/InvestmentsSummaryofContractualMaturitiesDetails",
                "shortName":  "Investments - Summary of Contractual Maturities (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:InvestmentsClassifiedByContractualMaturityDateTableTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R51":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "ix:continuation",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:CashAndCashEquivalentsFairValueDisclosure",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2430417 - Disclosure - Fair Value Measurement - Cash Equivalents and Investments (Details)",
                "role":  "http://www.shutterfly.com/role/FairValueMeasurementCashEquivalentsandInvestmentsDetails",
                "shortName":  "Fair Value Measurement - Cash Equivalents and Investments (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "ix:continuation",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:CashAndCashEquivalentsFairValueDisclosure",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R52":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "sfly:ScheduleOfDerivativeAssetsAndLiabilitiesAtFairValueTableTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ieaf32e476fe24f3397a6e80368994c10_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:DerivativeLiabilities",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2431418 - Disclosure - Fair Value Measurement - Derivative (Liabilities) Assets (Details)",
                "role":  "http://www.shutterfly.com/role/FairValueMeasurementDerivativeLiabilitiesAssetsDetails",
                "shortName":  "Fair Value Measurement - Derivative (Liabilities) Assets (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "sfly:ScheduleOfDerivativeAssetsAndLiabilitiesAtFairValueTableTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ieaf32e476fe24f3397a6e80368994c10_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:DerivativeLiabilities",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R53":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:FairValueLiabilitiesMeasuredOnRecurringBasisTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ieaf32e476fe24f3397a6e80368994c10_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:LoansPayableFairValueDisclosure",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2432419 - Disclosure - Fair Value Measurement - Borrowings (Details)",
                "role":  "http://www.shutterfly.com/role/FairValueMeasurementBorrowingsDetails",
                "shortName":  "Fair Value Measurement - Borrowings (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:FairValueLiabilitiesMeasuredOnRecurringBasisTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ieaf32e476fe24f3397a6e80368994c10_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:LoansPayableFairValueDisclosure",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R54":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:AssetsHeldForSaleNotPartOfDisposalGroup",
                    "reportCount":  1,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2435420 - Disclosure - Balance Sheet Components - Assets Held for Sale (Details)",
                "role":  "http://www.shutterfly.com/role/BalanceSheetComponentsAssetsHeldforSaleDetails",
                "shortName":  "Balance Sheet Components - Assets Held for Sale (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  "INF",
                    "lang":  null,
                    "name":  "sfly:NumberOfFacilities",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "facility",
                    "xsiNil":  "false"
                    }
                },
            "R55":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "sfly:IntraperiodTaxAsset",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2436421 - Disclosure - Balance Sheet Components - Prepaid Expenses and Other Current Assets (Details)",
                "role":  "http://www.shutterfly.com/role/BalanceSheetComponentsPrepaidExpensesandOtherCurrentAssetsDetails",
                "shortName":  "Balance Sheet Components - Prepaid Expenses and Other Current Assets (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "sfly:IntraperiodTaxAsset",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R56":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:PropertyPlantAndEquipmentTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:PropertyPlantAndEquipmentGross",
                    "reportCount":  1,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2437422 - Disclosure - Balance Sheet Components - Property and Equipment, Net (Details)",
                "role":  "http://www.shutterfly.com/role/BalanceSheetComponentsPropertyandEquipmentNetDetails",
                "shortName":  "Balance Sheet Components - Property and Equipment, Net (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:PropertyPlantAndEquipmentTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i85d38f66ad714ae58f4d0deda5a01083_I20181231",
                    "decimals":  "-3",
                    "lang":  null,
                    "name":  "us-gaap:PropertyPlantAndEquipmentGross",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R57":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:FiniteLivedIntangibleAssetsNet",
                    "reportCount":  1,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2438423 - Disclosure - Balance Sheet Components - Intangible Assets (Details)",
                "role":  "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails",
                "shortName":  "Balance Sheet Components - Intangible Assets (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i85d38f66ad714ae58f4d0deda5a01083_I20181231",
                    "decimals":  "-3",
                    "lang":  null,
                    "name":  "us-gaap:FiniteLivedIntangibleAssetsNet",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R58":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:ScheduleOfGoodwillTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i85d38f66ad714ae58f4d0deda5a01083_I20181231",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:Goodwill",
                    "reportCount":  1,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2439424 - Disclosure - Balance Sheet Components - Goodwill (Details)",
                "role":  "http://www.shutterfly.com/role/BalanceSheetComponentsGoodwillDetails",
                "shortName":  "Balance Sheet Components - Goodwill (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:ScheduleOfGoodwillTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  "-3",
                    "lang":  null,
                    "name":  "us-gaap:GoodwillForeignCurrencyTranslationGainLoss",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R59":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:ScheduleOfAccruedLiabilitiesTableTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:EmployeeRelatedLiabilitiesCurrent",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2440425 - Disclosure - Balance Sheet Components - Accrued Liabilities (Details)",
                "role":  "http://www.shutterfly.com/role/BalanceSheetComponentsAccruedLiabilitiesDetails",
                "shortName":  "Balance Sheet Components - Accrued Liabilities (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:ScheduleOfAccruedLiabilitiesTableTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:EmployeeRelatedLiabilitiesCurrent",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R6":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:NetIncomeLoss",
                    "reportCount":  1,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "statement",
                "isDefault":  "false",
                "longName":  "1006006 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS",
                "role":  "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS",
                "shortName":  "CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS",
                "subGroupType":  "",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  "-3",
                    "lang":  null,
                    "name":  "us-gaap:AmortizationOfFinancingCostsAndDiscounts",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R60":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "sfly:ScheduleofOtherNoncurrentLiabilitiesTableTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:FinanceLeaseLiabilityNoncurrent",
                    "reportCount":  1,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2441426 - Disclosure - Balance Sheet Components - Other Liabilities (Details)",
                "role":  "http://www.shutterfly.com/role/BalanceSheetComponentsOtherLiabilitiesDetails",
                "shortName":  "Balance Sheet Components - Other Liabilities (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "sfly:ScheduleofOtherNoncurrentLiabilitiesTableTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "lang":  null,
                    "name":  "us-gaap:DeferredTaxLiabilities",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R61":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "ix:continuation",
                        "ix:continuation",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2442427 - Disclosure - Balance Sheet Components - Accumulated Other Comprehensive (Loss) Income (Details)",
                "role":  "http://www.shutterfly.com/role/BalanceSheetComponentsAccumulatedOtherComprehensiveLossIncomeDetails",
                "shortName":  "Balance Sheet Components - Accumulated Other Comprehensive (Loss) Income (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "ix:continuation",
                        "ix:continuation",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R62":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:ScheduleOfDebtInstrumentsTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:DebtInstrumentCarryingAmount",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2445428 - Disclosure - Debt - Schedule of Debt (Details)",
                "role":  "http://www.shutterfly.com/role/DebtScheduleofDebtDetails",
                "shortName":  "Debt - Schedule of Debt (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:ScheduleOfDebtInstrumentsTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:DebtInstrumentCarryingAmount",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R63":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ie0df3643ef7746f09a3399b5d6b3fef5_D20190101-20190131",
                    "decimals":  "-5",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:PaymentsOfDebtExtinguishmentCosts",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2446429 - Disclosure - Debt - Narrative (Details)",
                "role":  "http://www.shutterfly.com/role/DebtNarrativeDetails",
                "shortName":  "Debt - Narrative (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ie0df3643ef7746f09a3399b5d6b3fef5_D20190101-20190131",
                    "decimals":  "-5",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:PaymentsOfDebtExtinguishmentCosts",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R64":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "sfly:ScheduleOfEffectiveInterestRatesTableTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i2dfb095a52a84ef1a34c4edb64ece7fb_D20190401-20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:PaymentsOfDebtExtinguishmentCosts",
                    "reportCount":  1,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2447430 - Disclosure - Debt - Schedule of Effective Interest Rates (Details)",
                "role":  "http://www.shutterfly.com/role/DebtScheduleofEffectiveInterestRatesDetails",
                "shortName":  "Debt - Schedule of Effective Interest Rates (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "sfly:ScheduleOfEffectiveInterestRatesTableTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ib9258569ae6b494d8fe13e371779e457_D20190401-20190630",
                    "decimals":  "4",
                    "lang":  null,
                    "name":  "sfly:DebtInstrumentEffectivePercentageInterestRate",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "number",
                    "xsiNil":  "false"
                    }
                },
            "R65":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "sfly:InterestExpenseRelatedToConvertibleSeniorNotesTableTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i2dfb095a52a84ef1a34c4edb64ece7fb_D20190401-20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:InterestExpenseDebtExcludingAmortization",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2448431 - Disclosure - Debt - Schedule of Interest Expense (Details)",
                "role":  "http://www.shutterfly.com/role/DebtScheduleofInterestExpenseDetails",
                "shortName":  "Debt - Schedule of Interest Expense (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "sfly:InterestExpenseRelatedToConvertibleSeniorNotesTableTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i2dfb095a52a84ef1a34c4edb64ece7fb_D20190401-20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:InterestExpenseDebtExcludingAmortization",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R66":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:ScheduleOfDebtInstrumentsTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:LongTermDebt",
                    "reportCount":  1,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2449432 - Disclosure - Debt - Summary of Maturities of Assumed Debt (Details)",
                "role":  "http://www.shutterfly.com/role/DebtSummaryofMaturitiesofAssumedDebtDetails",
                "shortName":  "Debt - Summary of Maturities of Assumed Debt (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:ScheduleOfMaturitiesOfLongTermDebtTableTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i13db28027be24bca935fe3e9d9d2851e_I20190630",
                    "decimals":  "-3",
                    "lang":  null,
                    "name":  "us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R67":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:DisaggregationOfRevenueTableTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i39df38755b734c2ebfb93f373177095e_D20190401-20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax",
                    "reportCount":  1,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2452433 - Disclosure - Segment Reporting - Segment Information (Details)",
                "role":  "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails",
                "shortName":  "Segment Reporting - Segment Information (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ie7f44bd98bde405fbd02ff43e320a907_D20190401-20190630",
                    "decimals":  "-3",
                    "lang":  null,
                    "name":  "sfly:TechnologyAndDevelopmentExpenses",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R68":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i39df38755b734c2ebfb93f373177095e_D20190401-20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:GrossProfit",
                    "reportCount":  1,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2453434 - Disclosure - Segment Reporting - Reconciliation of Operating Segments to Consolidated (Details)",
                "role":  "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails",
                "shortName":  "Segment Reporting - Reconciliation of Operating Segments to Consolidated (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i66d35d23c8ee4a7094ccf80b54d5a634_D20190401-20190630",
                    "decimals":  "-3",
                    "lang":  null,
                    "name":  "sfly:Purchaseaccountingdeferredrevenueadjustment",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R69":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "sfly:ScheduleOfRightofUseAssetsAndLeaseLiabilitiesTableTextBlock",
                        "ix:continuation",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "sfly:FinanceLeaseRightofUseAssetAccumulatedDepreciation",
                    "reportCount":  1,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2456435 - Disclosure - Leases - Narrative (Details)",
                "role":  "http://www.shutterfly.com/role/LeasesNarrativeDetails",
                "shortName":  "Leases - Narrative (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock",
                        "us-gaap:FinanceLeaseLiabilityMaturityTableTextBlock",
                        "ix:continuation",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-5",
                    "lang":  null,
                    "name":  "sfly:LesseeOperatingLeaseLeaseNotYetCommencedFutureMinimumPayments",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R7":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i39c8bddd0fe2464ba89efd02739211bb_I20171231",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption",
                    "reportCount":  1,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "statement",
                "isDefault":  "false",
                "longName":  "1405401 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY",
                "role":  "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY",
                "shortName":  "CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY",
                "subGroupType":  "",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ie0d5871311944248b2d97d25b3449b11_I20171231",
                    "decimals":  "-3",
                    "lang":  null,
                    "name":  "us-gaap:StockholdersEquity",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R70":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "sfly:ScheduleOfRightofUseAssetsAndLeaseLiabilitiesTableTextBlock",
                        "ix:continuation",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:OperatingLeaseRightOfUseAsset",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2457436 - Disclosure - Leases - ROU Assets and Lease Liabilities (Details)",
                "role":  "http://www.shutterfly.com/role/LeasesROUAssetsandLeaseLiabilitiesDetails",
                "shortName":  "Leases - ROU Assets and Lease Liabilities (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "sfly:ScheduleOfRightofUseAssetsAndLeaseLiabilitiesTableTextBlock",
                        "ix:continuation",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:OperatingLeaseRightOfUseAsset",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R71":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:LeaseCostTableTextBlock",
                        "ix:continuation",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i39df38755b734c2ebfb93f373177095e_D20190401-20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:OperatingLeaseCost",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2458437 - Disclosure - Leases - Components of Lease Cost (Details)",
                "role":  "http://www.shutterfly.com/role/LeasesComponentsofLeaseCostDetails",
                "shortName":  "Leases - Components of Lease Cost (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:LeaseCostTableTextBlock",
                        "ix:continuation",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i39df38755b734c2ebfb93f373177095e_D20190401-20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:OperatingLeaseCost",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R72":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock",
                        "us-gaap:FinanceLeaseLiabilityMaturityTableTextBlock",
                        "ix:continuation",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2459438 - Disclosure - Leases - Future Minimum Payments of Leases (Details)",
                "role":  "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails",
                "shortName":  "Leases - Future Minimum Payments of Leases (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock",
                        "us-gaap:FinanceLeaseLiabilityMaturityTableTextBlock",
                        "ix:continuation",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R73":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "sfly:ScheduleOfFutureMinimumRentalPaymentsForOperatingAndCapitalLeasesTableTextBlock",
                        "sfly:ScheduleOfFutureObligationsForBuildtoSuitLeasesTableTextBlock",
                        "ix:continuation",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i85d38f66ad714ae58f4d0deda5a01083_I20181231",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:OperatingLeasesFutureMinimumPaymentsDueCurrent",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2460439 - Disclosure - Leases - Future Minimum Payments Under Non-Cancelable Leases and Build-to-Suite Arrangements (Details)",
                "role":  "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails",
                "shortName":  "Leases - Future Minimum Payments Under Non-Cancelable Leases and Build-to-Suite Arrangements (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "sfly:ScheduleOfFutureMinimumRentalPaymentsForOperatingAndCapitalLeasesTableTextBlock",
                        "sfly:ScheduleOfFutureObligationsForBuildtoSuitLeasesTableTextBlock",
                        "ix:continuation",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i85d38f66ad714ae58f4d0deda5a01083_I20181231",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:OperatingLeasesFutureMinimumPaymentsDueCurrent",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R74":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "sfly:ScheduleOfLeaseTermAndDiscountRateTableTextBlock",
                        "ix:continuation",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:OperatingLeaseWeightedAverageRemainingLeaseTerm1",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2461440 - Disclosure - Leases - Lease Term and Discount Rate (Details)",
                "role":  "http://www.shutterfly.com/role/LeasesLeaseTermandDiscountRateDetails",
                "shortName":  "Leases - Lease Term and Discount Rate (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "sfly:ScheduleOfLeaseTermAndDiscountRateTableTextBlock",
                        "ix:continuation",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:OperatingLeaseWeightedAverageRemainingLeaseTerm1",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R75":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "sfly:ScheduleOfCashFlowInformationRelatingToLeasesTableTextBlock",
                        "ix:continuation",
                        "ix:continuation",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:OperatingLeasePayments",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2462441 - Disclosure - Leases - Supplemental Cash Flow Information (Details)",
                "role":  "http://www.shutterfly.com/role/LeasesSupplementalCashFlowInformationDetails",
                "shortName":  "Leases - Supplemental Cash Flow Information (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "sfly:ScheduleOfCashFlowInformationRelatingToLeasesTableTextBlock",
                        "ix:continuation",
                        "ix:continuation",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:OperatingLeasePayments",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R76":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-5",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2464442 - Disclosure - Commitments and Contingencies - Narrative (Details)",
                "role":  "http://www.shutterfly.com/role/CommitmentsandContingenciesNarrativeDetails",
                "shortName":  "Commitments and Contingencies - Narrative (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i4a58089fce154fc3944d9caa52204215_I20190630",
                    "decimals":  "-5",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R77":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ida704ea5d6d24c6a8b7a1ca1de30833b_I20121024",
                    "decimals":  "INF",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:StockRepurchaseProgramAuthorizedAmount1",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2466443 - Disclosure - Share Repurchase Program - Narrative (Details)",
                "role":  "http://www.shutterfly.com/role/ShareRepurchaseProgramNarrativeDetails",
                "shortName":  "Share Repurchase Program - Narrative (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ida704ea5d6d24c6a8b7a1ca1de30833b_I20121024",
                    "decimals":  "INF",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:StockRepurchaseProgramAuthorizedAmount1",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R78":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i85d38f66ad714ae58f4d0deda5a01083_I20181231",
                    "decimals":  "INF",
                    "first":  true,
                    "lang":  null,
                    "name":  "sfly:NumberOfFacilitiesClosed",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "facility",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2469444 - Disclosure - Restructuring - Narrative (Details)",
                "role":  "http://www.shutterfly.com/role/RestructuringNarrativeDetails",
                "shortName":  "Restructuring - Narrative (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i85d38f66ad714ae58f4d0deda5a01083_I20181231",
                    "decimals":  "INF",
                    "first":  true,
                    "lang":  null,
                    "name":  "sfly:NumberOfFacilitiesClosed",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "facility",
                    "xsiNil":  "false"
                    }
                },
            "R79":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:ScheduleOfRestructuringAndRelatedCostsTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i85d38f66ad714ae58f4d0deda5a01083_I20181231",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:RestructuringReserve",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2470445 - Disclosure - Restructuring - Restructuring Reserve Activities (Details)",
                "role":  "http://www.shutterfly.com/role/RestructuringRestructuringReserveActivitiesDetails",
                "shortName":  "Restructuring - Restructuring Reserve Activities (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "us-gaap:ScheduleOfRestructuringAndRelatedCostsTextBlock",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i85d38f66ad714ae58f4d0deda5a01083_I20181231",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:RestructuringReserve",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    }
                },
            "R8":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:BasisOfPresentationAndSignificantAccountingPoliciesTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2101101 - Disclosure - The Company and Summary of Significant Accounting Policies",
                "role":  "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPolicies",
                "shortName":  "The Company and Summary of Significant Accounting Policies",
                "subGroupType":  "",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:BasisOfPresentationAndSignificantAccountingPoliciesTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                },
            "R80":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "td",
                        "tr",
                        "table",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i39df38755b734c2ebfb93f373177095e_D20190401-20190630",
                    "decimals":  "-3",
                    "first":  true,
                    "lang":  null,
                    "name":  "us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax",
                    "reportCount":  1,
                    "unitRef":  "usd",
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2473446 - Disclosure - Derivative Financial Instruments (Details)",
                "role":  "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsDetails",
                "shortName":  "Derivative Financial Instruments (Details)",
                "subGroupType":  "details",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "ix:continuation",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "i86028fecf6fd4ec2976fd6655a81dfa6_I20180930",
                    "decimals":  "4",
                    "lang":  null,
                    "name":  "us-gaap:DebtInstrumentInterestRateEffectivePercentage",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  "number",
                    "xsiNil":  "false"
                    }
                },
            "R9":  {
                "firstAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:RevenueFromContractWithCustomerTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    },
                "groupType":  "disclosure",
                "isDefault":  "false",
                "longName":  "2104102 - Disclosure - Revenues",
                "role":  "http://www.shutterfly.com/role/Revenues",
                "shortName":  "Revenues",
                "subGroupType":  "",
                "uniqueAnchor":  {
                    "ancestors":  [
                        "span",
                        "div",
                        "body",
                        "html"
                        ],
                    "baseRef":  "sfly-20190630.htm",
                    "contextRef":  "ief50cca1227b47e89482006769927478_D20190101-20190630",
                    "decimals":  null,
                    "first":  true,
                    "lang":  "en-US",
                    "name":  "us-gaap:RevenueFromContractWithCustomerTextBlock",
                    "reportCount":  1,
                    "unique":  true,
                    "unitRef":  null,
                    "xsiNil":  "false"
                    }
                }
            },
        "segmentCount":  84,
        "tag":  {
            "dei_AmendmentFlag":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.",
                            "label":  "Amendment Flag",
                            "terseLabel":  "Amendment Flag"
                            }
                        }
                    },
                "localname":  "AmendmentFlag",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "booleanItemType"
                },
            "dei_CityAreaCode":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Area code of city",
                            "label":  "City Area Code",
                            "terseLabel":  "City Area Code"
                            }
                        }
                    },
                "localname":  "CityAreaCode",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "normalizedStringItemType"
                },
            "dei_CoverAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Cover page.",
                            "label":  "Cover page."
                            }
                        }
                    },
                "localname":  "CoverAbstract",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "xbrltype":  "stringItemType"
                },
            "dei_CurrentFiscalYearEndDate":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "End date of current fiscal year in the format --MM-DD.",
                            "label":  "Current Fiscal Year End Date",
                            "terseLabel":  "Current Fiscal Year End Date"
                            }
                        }
                    },
                "localname":  "CurrentFiscalYearEndDate",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "gMonthDayItemType"
                },
            "dei_DocumentFiscalPeriodFocus":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Fiscal period values are FY, Q1, Q2, and Q3.   1st, 2nd and 3rd quarter 10-Q or 10-QT statements have value Q1, Q2, and Q3 respectively, with 10-K, 10-KT or other fiscal year statements having FY.",
                            "label":  "Document Fiscal Period Focus",
                            "terseLabel":  "Document Fiscal Period Focus"
                            }
                        }
                    },
                "localname":  "DocumentFiscalPeriodFocus",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "fiscalPeriodItemType"
                },
            "dei_DocumentFiscalYearFocus":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "This is focus fiscal year of the document report in CCYY format.  For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus.  Example: 2006.",
                            "label":  "Document Fiscal Year Focus",
                            "terseLabel":  "Document Fiscal Year Focus"
                            }
                        }
                    },
                "localname":  "DocumentFiscalYearFocus",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "gYearItemType"
                },
            "dei_DocumentPeriodEndDate":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The end date of the period reflected on the cover page if a periodic report.  For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented.  If there is no historical data in the report, use the filing date.  The format of the date is CCYY-MM-DD.",
                            "label":  "Document Period End Date",
                            "terseLabel":  "Document Period End Date"
                            }
                        }
                    },
                "localname":  "DocumentPeriodEndDate",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "dateItemType"
                },
            "dei_DocumentQuarterlyReport":  {
                "auth_ref":  [
                    "r378"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Boolean flag that is true only for a form used as an quarterly report.",
                            "label":  "Document Quarterly Report",
                            "terseLabel":  "Document Quarterly Report"
                            }
                        }
                    },
                "localname":  "DocumentQuarterlyReport",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "booleanItemType"
                },
            "dei_DocumentTransitionReport":  {
                "auth_ref":  [
                    "r379"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Boolean flag that is true only for a form used as a transition report.",
                            "label":  "Document Transition Report",
                            "terseLabel":  "Document Transition Report"
                            }
                        }
                    },
                "localname":  "DocumentTransitionReport",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "booleanItemType"
                },
            "dei_DocumentType":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc).  The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.",
                            "label":  "Document Type",
                            "terseLabel":  "Document Type"
                            }
                        }
                    },
                "localname":  "DocumentType",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "submissionTypeItemType"
                },
            "dei_EntityAddressAddressLine1":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Address Line 1 such as Attn, Building Name, Street Name",
                            "label":  "Entity Address, Address Line One",
                            "terseLabel":  "Entity Address, Address Line One"
                            }
                        }
                    },
                "localname":  "EntityAddressAddressLine1",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "normalizedStringItemType"
                },
            "dei_EntityAddressCityOrTown":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Name of the City or Town",
                            "label":  "Entity Address, City or Town",
                            "terseLabel":  "Entity Address, City or Town"
                            }
                        }
                    },
                "localname":  "EntityAddressCityOrTown",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "normalizedStringItemType"
                },
            "dei_EntityAddressPostalZipCode":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Code for the postal or zip code",
                            "label":  "Entity Address, Postal Zip Code",
                            "terseLabel":  "Entity Address, Postal Zip Code"
                            }
                        }
                    },
                "localname":  "EntityAddressPostalZipCode",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "normalizedStringItemType"
                },
            "dei_EntityAddressStateOrProvince":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Name of the state or province.",
                            "label":  "Entity Address, State or Province",
                            "terseLabel":  "Entity Address, State or Province"
                            }
                        }
                    },
                "localname":  "EntityAddressStateOrProvince",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "stateOrProvinceItemType"
                },
            "dei_EntityCentralIndexKey":  {
                "auth_ref":  [
                    "r380"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC.  It is commonly abbreviated as CIK.",
                            "label":  "Entity Central Index Key",
                            "terseLabel":  "Entity Central Index Key"
                            }
                        }
                    },
                "localname":  "EntityCentralIndexKey",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "centralIndexKeyItemType"
                },
            "dei_EntityCommonStockSharesOutstanding":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report.  Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.",
                            "label":  "Entity Common Stock, Shares Outstanding",
                            "terseLabel":  "Entity Common Stock, Shares Outstanding"
                            }
                        }
                    },
                "localname":  "EntityCommonStockSharesOutstanding",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "sharesItemType"
                },
            "dei_EntityCurrentReportingStatus":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days.  This information should be based on the registrant's current or most recent filing containing the related disclosure.",
                            "label":  "Entity Current Reporting Status",
                            "verboseLabel":  "Entity Current Reporting Status"
                            }
                        }
                    },
                "localname":  "EntityCurrentReportingStatus",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "yesNoItemType"
                },
            "dei_EntityDomain":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "All the names of the entities being reported upon in a document.  Any legal structure used to conduct activities or to hold assets.  Some examples of such structures are corporations, partnerships, limited liability companies, grantor trusts, and other trusts.  This item does not include business and geographical segments which are included in the geographical or business segments domains.",
                            "label":  "Entity [Domain]",
                            "terseLabel":  "Entity [Domain]"
                            }
                        }
                    },
                "localname":  "EntityDomain",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "dei_EntityEmergingGrowthCompany":  {
                "auth_ref":  [
                    "r380"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Indicate if registrant meets the emerging growth company criteria.",
                            "label":  "Entity Emerging Growth Company",
                            "terseLabel":  "Entity Emerging Growth Company"
                            }
                        }
                    },
                "localname":  "EntityEmergingGrowthCompany",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "booleanItemType"
                },
            "dei_EntityFileNumber":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Commission file number.  The field allows up to 17 characters.  The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.",
                            "label":  "Entity File Number",
                            "terseLabel":  "Entity File Number"
                            }
                        }
                    },
                "localname":  "EntityFileNumber",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "fileNumberItemType"
                },
            "dei_EntityFilerCategory":  {
                "auth_ref":  [
                    "r380"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Indicate whether the registrant is one of the following:  Large Accelerated Filer, Accelerated Filer, Non-accelerated Filer.  Definitions of these categories are stated in Rule 12b-2 of the Exchange Act.  This information should be based on the registrant's current or most recent filing containing the related disclosure.",
                            "label":  "Entity Filer Category",
                            "terseLabel":  "Entity Filer Category"
                            }
                        }
                    },
                "localname":  "EntityFilerCategory",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "filerCategoryItemType"
                },
            "dei_EntityIncorporationStateCountryCode":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Two-character EDGAR code representing the state or country of incorporation.",
                            "label":  "Entity Incorporation, State or Country Code",
                            "terseLabel":  "Entity Incorporation, State or Country Code"
                            }
                        }
                    },
                "localname":  "EntityIncorporationStateCountryCode",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "edgarStateCountryItemType"
                },
            "dei_EntityInteractiveDataCurrent":  {
                "auth_ref":  [
                    "r381"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Boolean flag that is true when the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).",
                            "label":  "Entity Interactive Data Current",
                            "terseLabel":  "Entity Interactive Data Current"
                            }
                        }
                    },
                "localname":  "EntityInteractiveDataCurrent",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "yesNoItemType"
                },
            "dei_EntityRegistrantName":  {
                "auth_ref":  [
                    "r380"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.",
                            "label":  "Entity Registrant Name",
                            "terseLabel":  "Entity Registrant Name"
                            }
                        }
                    },
                "localname":  "EntityRegistrantName",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "normalizedStringItemType"
                },
            "dei_EntityShellCompany":  {
                "auth_ref":  [
                    "r380"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act.",
                            "label":  "Entity Shell Company",
                            "terseLabel":  "Entity Shell Company"
                            }
                        }
                    },
                "localname":  "EntityShellCompany",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "booleanItemType"
                },
            "dei_EntitySmallBusiness":  {
                "auth_ref":  [
                    "r380"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Indicates that the company is a Smaller Reporting Company (SRC).",
                            "label":  "Entity Small Business",
                            "terseLabel":  "Entity Small Business"
                            }
                        }
                    },
                "localname":  "EntitySmallBusiness",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "booleanItemType"
                },
            "dei_EntityTaxIdentificationNumber":  {
                "auth_ref":  [
                    "r380"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.",
                            "label":  "Entity Tax Identification Number",
                            "terseLabel":  "Entity Tax Identification Number"
                            }
                        }
                    },
                "localname":  "EntityTaxIdentificationNumber",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "employerIdItemType"
                },
            "dei_LegalEntityAxis":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The set of legal entities associated with a report.",
                            "label":  "Legal Entity [Axis]",
                            "terseLabel":  "Legal Entity [Axis]"
                            }
                        }
                    },
                "localname":  "LegalEntityAxis",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "dei_LocalPhoneNumber":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Local phone number for entity.",
                            "label":  "Local Phone Number",
                            "terseLabel":  "Local Phone Number"
                            }
                        }
                    },
                "localname":  "LocalPhoneNumber",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "normalizedStringItemType"
                },
            "dei_Security12bTitle":  {
                "auth_ref":  [
                    "r376"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Title of a 12(b) registered security.",
                            "label":  "Title of 12(b) Security",
                            "terseLabel":  "Title of 12(b) Security"
                            }
                        }
                    },
                "localname":  "Security12bTitle",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "securityTitleItemType"
                },
            "dei_SecurityExchangeName":  {
                "auth_ref":  [
                    "r377"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Name of the Exchange on which a security is registered.",
                            "label":  "Security Exchange Name",
                            "terseLabel":  "Security Exchange Name"
                            }
                        }
                    },
                "localname":  "SecurityExchangeName",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "edgarExchangeCodeItemType"
                },
            "dei_TradingSymbol":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Trading symbol of an instrument as listed on an exchange.",
                            "label":  "Trading Symbol",
                            "terseLabel":  "Trading Symbol"
                            }
                        }
                    },
                "localname":  "TradingSymbol",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DocumentandEntityInformation"
                    ],
                "xbrltype":  "tradingSymbolItemType"
                },
            "sfly_A2015EquityIncentivePlanMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "A2015EquityIncentivePlanMember",
                            "terseLabel":  "2015 Equity Incentive Plan"
                            }
                        }
                    },
                "localname":  "A2015EquityIncentivePlanMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_AccruedProductionCostsCurrent":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccruedLiabilitiesDetails":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_AccruedLiabilitiesCurrent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "AccruedProductionCostsCurrent",
                            "verboseLabel":  "Accrued production costs"
                            }
                        }
                    },
                "localname":  "AccruedProductionCostsCurrent",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccruedLiabilitiesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_AggregateIntrinsicValueAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "-- None.  No documentation exists for this element. --",
                            "label":  "Aggregate Intrinsic Value [Abstract]",
                            "terseLabel":  "Aggregate Intrinsic Value (in thousands)"
                            }
                        }
                    },
                "localname":  "AggregateIntrinsicValueAbstract",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "sfly_AntidilutiveSecuritiesIncludedExcludedFromComputationOfEarningsPerShareAmountNet":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/NetLossPerShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsperShareDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        }
                    },
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Antidilutive Securities Included (Excluded) from Computation of Earnings Per Share, Amount, Net",
                            "label":  "Antidilutive Securities Included (Excluded) from Computation of Earnings Per Share, Amount, Net",
                            "totalLabel":  "Total (shares)"
                            }
                        }
                    },
                "localname":  "AntidilutiveSecuritiesIncludedExcludedFromComputationOfEarningsPerShareAmountNet",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/NetLossPerShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsperShareDetails"
                    ],
                "xbrltype":  "sharesItemType"
                },
            "sfly_AntidilutiveSecuritiesIncludedInComputationOfEarningsPerShareAmount":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/NetLossPerShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsperShareDetails":  {
                        "order":  1.0,
                        "parentTag":  "sfly_AntidilutiveSecuritiesIncludedExcludedFromComputationOfEarningsPerShareAmountNet",
                        "weight":  1.0
                        }
                    },
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Antidilutive Securities Included in Computation of Earnings Per Share, Amount",
                            "label":  "Antidilutive Securities Included in Computation of Earnings Per Share, Amount",
                            "terseLabel":  "Weighted average stock options and RSU's that would have been included in the computation of the dilutive common equivalent shares outstanding if net income had been reported in the period (shares)"
                            }
                        }
                    },
                "localname":  "AntidilutiveSecuritiesIncludedInComputationOfEarningsPerShareAmount",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/NetLossPerShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsperShareDetails"
                    ],
                "xbrltype":  "sharesItemType"
                },
            "sfly_ApolloFundsMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Apollo Funds",
                            "label":  "Apollo Funds [Member]",
                            "terseLabel":  "Apollo Funds"
                            }
                        }
                    },
                "localname":  "ApolloFundsMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughThreeFairValue":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/InvestmentsSummaryofContractualMaturitiesDetails":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_AvailableForSaleSecuritiesDebtSecurities",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughThreeFairValue",
                            "terseLabel":  "One year through three years"
                            }
                        }
                    },
                "localname":  "AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughThreeFairValue",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/InvestmentsSummaryofContractualMaturitiesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_BloomingtonMinnesotaMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Bloomington, Minnesota",
                            "label":  "Bloomington, Minnesota [Member]",
                            "terseLabel":  "Bloomington, Minnesota"
                            }
                        }
                    },
                "localname":  "BloomingtonMinnesotaMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAssetsHeldforSaleDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_BuildToSuitArrangementsFixedAssetGross":  {
                "auth_ref":  [
                    ],
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Build to Suit Arrangements, Fixed Asset, Gross",
                            "label":  "Build to Suit Arrangements, Fixed Asset, Gross",
                            "terseLabel":  "Build-to-suit arrangements, fixed asset, gross"
                            }
                        }
                    },
                "localname":  "BuildToSuitArrangementsFixedAssetGross",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPropertyandEquipmentNetDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_BuildtoSuitArrangementsAccumulatedDepreciation":  {
                "auth_ref":  [
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Build-to-Suit Arrangements, Accumulated Depreciation",
                            "label":  "Build-to-Suit Arrangements, Accumulated Depreciation",
                            "terseLabel":  "Build-to-suit arrangements, accumulated depreciation"
                            }
                        }
                    },
                "localname":  "BuildtoSuitArrangementsAccumulatedDepreciation",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPropertyandEquipmentNetDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedLongTermDebt":  {
                "auth_ref":  [
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedLongTermDebt",
                            "terseLabel":  "Debt assumed in a business combination"
                            }
                        }
                    },
                "localname":  "BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedLongTermDebt",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtNarrativeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_CapitalizedStockbasedCompensation":  {
                "auth_ref":  [
                    ],
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "CapitalizedStockbasedCompensation",
                            "terseLabel":  "Stock-based compensation capitalized with software and website development costs"
                            }
                        }
                    },
                "localname":  "CapitalizedStockbasedCompensation",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_ComputerEquipmentandSoftwareMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "ComputerEquipmentandSoftwareMember",
                            "terseLabel":  "Computer equipment and software"
                            }
                        }
                    },
                "localname":  "ComputerEquipmentandSoftwareMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPropertyandEquipmentNetDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_ConsumerMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "ConsumerMember",
                            "terseLabel":  "Shutterfly Consumer"
                            }
                        }
                    },
                "localname":  "ConsumerMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsGoodwillDetails",
                    "http://www.shutterfly.com/role/RevenuesConsumerRevenuesbyBrandDetails",
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_CorporateExpenses":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_OperatingIncomeLoss",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "CorporateExpenses",
                            "negatedTerseLabel":  "Corporate expenses"
                            }
                        }
                    },
                "localname":  "CorporateExpenses",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_CreditCardFeeExpense":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails":  {
                        "order":  5.0,
                        "parentTag":  "us-gaap_GrossProfit",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "CreditCardFeeExpense",
                            "terseLabel":  "Credit card fees"
                            }
                        }
                    },
                "localname":  "CreditCardFeeExpense",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_DebtDiscountFromRepaymentsOfConvertibleDebt":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  16.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInOperatingActivities",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Debt Discount From Repayments Of Convertible Debt",
                            "label":  "Debt Discount From Repayments Of Convertible Debt",
                            "negatedLabel":  "Repayment of convertible senior notes attributable to debt discount"
                            }
                        }
                    },
                "localname":  "DebtDiscountFromRepaymentsOfConvertibleDebt",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_DebtInstrumentEffectivePercentageInterestRate":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "",
                            "label":  "Debt Instrument, Effective Percentage, Interest Rate",
                            "terseLabel":  "Effective percentage of term loan"
                            }
                        }
                    },
                "localname":  "DebtInstrumentEffectivePercentageInterestRate",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtScheduleofEffectiveInterestRatesDetails"
                    ],
                "xbrltype":  "percentItemType"
                },
            "sfly_ExecutiveAndStrategicReviewCosts":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails":  {
                        "order":  8.0,
                        "parentTag":  "us-gaap_OperatingIncomeLoss",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Executive and Strategic Review Costs",
                            "label":  "Executive and Strategic Review Costs",
                            "negatedLabel":  "Executive transition and strategic review costs"
                            }
                        }
                    },
                "localname":  "ExecutiveAndStrategicReviewCosts",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_FinanceLeaseRightofUseAssetAccumulatedDepreciation":  {
                "auth_ref":  [
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Finance Lease, Right-of-Use Asset, Accumulated Depreciation",
                            "label":  "Finance Lease, Right-of-Use Asset, Accumulated Depreciation",
                            "verboseLabel":  "Finance lease, right-of-use asset, accumulated depreciation"
                            }
                        }
                    },
                "localname":  "FinanceLeaseRightofUseAssetAccumulatedDepreciation",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPropertyandEquipmentNetDetails",
                    "http://www.shutterfly.com/role/LeasesNarrativeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_FiniteLivedIntangibleAssetsAmortization":  {
                "auth_ref":  [
                    ],
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "FiniteLivedIntangibleAssetsAmortization",
                            "terseLabel":  "Amortization expense"
                            }
                        }
                    },
                "localname":  "FiniteLivedIntangibleAssetsAmortization",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_FutureObligationsUnderBuildtoSuitLeasesAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Future Obligations under Build-to-Suit Leases",
                            "label":  "Future Obligations under Build-to-Suit Leases [Abstract]",
                            "terseLabel":  "Build-to-Suit"
                            }
                        }
                    },
                "localname":  "FutureObligationsUnderBuildtoSuitLeasesAbstract",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "sfly_FutureRentPaymentsUnderBuildtoSuitLeases":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Future Rent Payments under Build-to-Suit Leases",
                            "label":  "Future Rent Payments under Build-to-Suit Leases",
                            "totalLabel":  "Total lease payments"
                            }
                        }
                    },
                "localname":  "FutureRentPaymentsUnderBuildtoSuitLeases",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_FutureRentPaymentsUnderBuildtoSuitLeasesDueInFiveYears":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails":  {
                        "order":  5.0,
                        "parentTag":  "sfly_FutureRentPaymentsUnderBuildtoSuitLeases",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Future Rent Payments under Build-to-Suit Leases, Due in Five Years",
                            "label":  "Future Rent Payments under Build-to-Suit Leases, Due in Five Years",
                            "terseLabel":  "2023"
                            }
                        }
                    },
                "localname":  "FutureRentPaymentsUnderBuildtoSuitLeasesDueInFiveYears",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_FutureRentPaymentsUnderBuildtoSuitLeasesDueInFourYears":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails":  {
                        "order":  3.0,
                        "parentTag":  "sfly_FutureRentPaymentsUnderBuildtoSuitLeases",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Future Rent Payments under Build-to-Suit Leases, Due in Four Years",
                            "label":  "Future Rent Payments under Build-to-Suit Leases, Due in Four Years",
                            "terseLabel":  "2022"
                            }
                        }
                    },
                "localname":  "FutureRentPaymentsUnderBuildtoSuitLeasesDueInFourYears",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_FutureRentPaymentsUnderBuildtoSuitLeasesDueInNextTwelveMonths":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails":  {
                        "order":  1.0,
                        "parentTag":  "sfly_FutureRentPaymentsUnderBuildtoSuitLeases",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Future Rent Payments under Build-to-Suit Leases, Due in Next Twelve Months",
                            "label":  "Future Rent Payments under Build-to-Suit Leases, Due in Next Twelve Months",
                            "terseLabel":  "2019"
                            }
                        }
                    },
                "localname":  "FutureRentPaymentsUnderBuildtoSuitLeasesDueInNextTwelveMonths",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_FutureRentPaymentsUnderBuildtoSuitLeasesDueInThreeYears":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails":  {
                        "order":  4.0,
                        "parentTag":  "sfly_FutureRentPaymentsUnderBuildtoSuitLeases",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Future Rent Payments under Build-to-Suit Leases, Due in Three Years",
                            "label":  "Future Rent Payments under Build-to-Suit Leases, Due in Three Years",
                            "terseLabel":  "2021"
                            }
                        }
                    },
                "localname":  "FutureRentPaymentsUnderBuildtoSuitLeasesDueInThreeYears",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_FutureRentPaymentsUnderBuildtoSuitLeasesDueInTwoYears":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails":  {
                        "order":  2.0,
                        "parentTag":  "sfly_FutureRentPaymentsUnderBuildtoSuitLeases",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Future Rent Payments under Build-to-Suit Leases, Due in Two Years",
                            "label":  "Future Rent Payments under Build-to-Suit Leases, Due in Two Years",
                            "terseLabel":  "2020"
                            }
                        }
                    },
                "localname":  "FutureRentPaymentsUnderBuildtoSuitLeasesDueInTwoYears",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_FutureRentPaymentsUnderBuildtoSuitLeasesDueThereafter":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails":  {
                        "order":  6.0,
                        "parentTag":  "sfly_FutureRentPaymentsUnderBuildtoSuitLeases",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Future Rent Payments under Build-to-Suit Leases, Due Thereafter",
                            "label":  "Future Rent Payments under Build-to-Suit Leases, Due Thereafter",
                            "terseLabel":  "Thereafter"
                            }
                        }
                    },
                "localname":  "FutureRentPaymentsUnderBuildtoSuitLeasesDueThereafter",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_GrossProfitAsPercentageOfRevenue":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "GrossProfitAsPercentageOfRevenue",
                            "terseLabel":  "Gross profit as percentage of revenue (percent)"
                            }
                        }
                    },
                "localname":  "GrossProfitAsPercentageOfRevenue",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails"
                    ],
                "xbrltype":  "percentItemType"
                },
            "sfly_IMemoriesMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "IMemoriesMember",
                            "terseLabel":  "iMemories"
                            }
                        }
                    },
                "localname":  "IMemoriesMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/RestructuringNarrativeDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_IncreaseDecreaseInAccruedPurchasesOfPropertyAndEquipment":  {
                "auth_ref":  [
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "IncreaseDecreaseInAccruedPurchasesOfPropertyAndEquipment",
                            "terseLabel":  "Net decrease in accrued purchases of property and equipment"
                            }
                        }
                    },
                "localname":  "IncreaseDecreaseInAccruedPurchasesOfPropertyAndEquipment",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_IncreaseDecreaseInCapitalExpendituresIncurredbutNotyetPaidSoftwareandWebsiteDevelopmentCosts":  {
                "auth_ref":  [
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "IncreaseDecreaseInCapitalExpendituresIncurredbutNotyetPaidSoftwareandWebsiteDevelopmentCosts",
                            "terseLabel":  "Net increase in accrued capitalized software and website development costs"
                            }
                        }
                    },
                "localname":  "IncreaseDecreaseInCapitalExpendituresIncurredbutNotyetPaidSoftwareandWebsiteDevelopmentCosts",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_IncrementalTermLoanMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "IncrementalTermLoanMember",
                            "terseLabel":  "Incremental Term Loan"
                            }
                        }
                    },
                "localname":  "IncrementalTermLoanMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtNarrativeDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_IncrementalTermLoansMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Incremental Term Loans",
                            "label":  "Incremental Term Loans [Member]",
                            "terseLabel":  "Incremental Term Loan"
                            }
                        }
                    },
                "localname":  "IncrementalTermLoansMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofEffectiveInterestRatesDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_InitialAndIncrementalTermLoanMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Initial and Incremental Term Loan",
                            "label":  "Initial and Incremental Term Loan [Member]",
                            "terseLabel":  "Initial and Incremental Term Loan"
                            }
                        }
                    },
                "localname":  "InitialAndIncrementalTermLoanMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_InitialTermLoanMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "InitialTermLoanMember",
                            "terseLabel":  "Initial Term Loan"
                            }
                        }
                    },
                "localname":  "InitialTermLoanMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtNarrativeDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofEffectiveInterestRatesDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_InterestExpenseRelatedToConvertibleSeniorNotesTableTextBlock":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "InterestExpenseRelatedToConvertibleSeniorNotesTableTextBlock",
                            "terseLabel":  "Interest expense related to convertible senior notes"
                            }
                        }
                    },
                "localname":  "InterestExpenseRelatedToConvertibleSeniorNotesTableTextBlock",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "sfly_IntraperiodTaxAsset":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPrepaidExpensesandOtherCurrentAssetsDetails":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_PrepaidExpenseAndOtherAssetsCurrent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "IntraperiodTaxAsset",
                            "terseLabel":  "Intra-period income tax asset"
                            }
                        }
                    },
                "localname":  "IntraperiodTaxAsset",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPrepaidExpensesandOtherCurrentAssetsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_LandBuildingsAndBuildingImprovementsMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Land, Buildings and Building Improvements",
                            "label":  "Land, Buildings and Building Improvements [Member]",
                            "terseLabel":  "Land, buildings and building improvements"
                            }
                        }
                    },
                "localname":  "LandBuildingsAndBuildingImprovementsMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPropertyandEquipmentNetDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_LeaseLiabilitiesPaymentsDueAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Lease Liabilities, Payments Due",
                            "label":  "Lease Liabilities, Payments Due [Abstract]",
                            "terseLabel":  "Lease Liabilities, Payments Due [Abstract]"
                            }
                        }
                    },
                "localname":  "LeaseLiabilitiesPaymentsDueAbstract",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "sfly_LeaseLiability":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        },
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails_1":  {
                        "order":  2.0,
                        "parentTag":  "sfly_LeaseLiabilityPaymentsDue",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/LeasesROUAssetsandLeaseLiabilitiesDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Lease Liability",
                            "label":  "Lease Liability",
                            "totalLabel":  "Total lease liabilities"
                            }
                        }
                    },
                "localname":  "LeaseLiability",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails",
                    "http://www.shutterfly.com/role/LeasesROUAssetsandLeaseLiabilitiesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_LeaseLiabilityCurrentAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Lease Liability, Current",
                            "label":  "Lease Liability, Current [Abstract]",
                            "terseLabel":  "Current"
                            }
                        }
                    },
                "localname":  "LeaseLiabilityCurrentAbstract",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesROUAssetsandLeaseLiabilitiesDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "sfly_LeaseLiabilityNoncurrentAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Lease Liability, Noncurrent",
                            "label":  "Lease Liability, Noncurrent [Abstract]",
                            "terseLabel":  "Noncurrent"
                            }
                        }
                    },
                "localname":  "LeaseLiabilityNoncurrentAbstract",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesROUAssetsandLeaseLiabilitiesDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "sfly_LeaseLiabilityPaymentsDue":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        },
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails_1":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        },
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails_2":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Lease, Liability, Payments, Due",
                            "label":  "Lease, Liability, Payments, Due",
                            "totalLabel":  "Total lease payments"
                            }
                        }
                    },
                "localname":  "LeaseLiabilityPaymentsDue",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_LeaseLiabilityPaymentsDueAfterYearFive":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        },
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails_2":  {
                        "order":  5.0,
                        "parentTag":  "sfly_LeaseLiabilityPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Lease, Liability, Payments, Due after Year Five",
                            "label":  "Lease, Liability, Payments, Due after Year Five",
                            "totalLabel":  "Thereafter"
                            }
                        }
                    },
                "localname":  "LeaseLiabilityPaymentsDueAfterYearFive",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_LeaseLiabilityPaymentsDueYearFive":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        },
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails_2":  {
                        "order":  4.0,
                        "parentTag":  "sfly_LeaseLiabilityPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Lease, Liability, Payments, Due Year Five",
                            "label":  "Lease, Liability, Payments, Due Year Five",
                            "totalLabel":  "2023"
                            }
                        }
                    },
                "localname":  "LeaseLiabilityPaymentsDueYearFive",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_LeaseLiabilityPaymentsDueYearFour":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        },
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails_2":  {
                        "order":  3.0,
                        "parentTag":  "sfly_LeaseLiabilityPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Lease, Liability, Payments, Due Year Four",
                            "label":  "Lease, Liability, Payments, Due Year Four",
                            "totalLabel":  "2022"
                            }
                        }
                    },
                "localname":  "LeaseLiabilityPaymentsDueYearFour",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_LeaseLiabilityPaymentsDueYearThree":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        },
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails_2":  {
                        "order":  2.0,
                        "parentTag":  "sfly_LeaseLiabilityPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Lease, Liability, Payments, Due Year Three",
                            "label":  "Lease, Liability, Payments, Due Year Three",
                            "totalLabel":  "2021"
                            }
                        }
                    },
                "localname":  "LeaseLiabilityPaymentsDueYearThree",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_LeaseLiabilityPaymentsDueYearTwo":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        },
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails_2":  {
                        "order":  1.0,
                        "parentTag":  "sfly_LeaseLiabilityPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Lease, Liability, Payments, Due Year Two",
                            "label":  "Lease, Liability, Payments, Due Year Two",
                            "totalLabel":  "2020"
                            }
                        }
                    },
                "localname":  "LeaseLiabilityPaymentsDueYearTwo",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_LeaseLiabilityPaymentsRemainderOfFiscalYear":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        },
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails_2":  {
                        "order":  6.0,
                        "parentTag":  "sfly_LeaseLiabilityPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Lease, Liability, Payments, Remainder of Fiscal Year",
                            "label":  "Lease, Liability, Payments, Remainder of Fiscal Year",
                            "totalLabel":  "Remainder of 2019"
                            }
                        }
                    },
                "localname":  "LeaseLiabilityPaymentsRemainderOfFiscalYear",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_LeaseLiabilityUndiscountedExcessAmount":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        },
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails_1":  {
                        "order":  1.0,
                        "parentTag":  "sfly_LeaseLiabilityPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Lease, Liability, Undiscounted Excess Amount",
                            "label":  "Lease, Liability, Undiscounted Excess Amount",
                            "negatedTotalLabel":  "Less:  Interest"
                            }
                        }
                    },
                "localname":  "LeaseLiabilityUndiscountedExcessAmount",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_LeasesLiability":  {
                "auth_ref":  [
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Leases, Liability",
                            "label":  "Leases, Liability",
                            "terseLabel":  "Leases, liability"
                            }
                        }
                    },
                "localname":  "LeasesLiability",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_LeasesRightOfUseAsset":  {
                "auth_ref":  [
                    ],
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Leases, Right-of Use Asset",
                            "label":  "Leases, Right-of Use Asset",
                            "terseLabel":  "Leases, right-of-use asset"
                            }
                        }
                    },
                "localname":  "LeasesRightOfUseAsset",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_LeasesRightofUseAsset":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesROUAssetsandLeaseLiabilitiesDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Leases, Right-of-Use Asset",
                            "label":  "Leases, Right-of-Use Asset",
                            "totalLabel":  "Total leased assets"
                            }
                        }
                    },
                "localname":  "LeasesRightofUseAsset",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesROUAssetsandLeaseLiabilitiesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_LegacyLifetouchNotesPayableMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "LegacyLifetouchNotesPayableMember",
                            "terseLabel":  "Legacy Lifetouch Notes Payable"
                            }
                        }
                    },
                "localname":  "LegacyLifetouchNotesPayableMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtNarrativeDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_LesseeOperatingLeaseLeaseNotYetCommencedFutureMinimumPayments":  {
                "auth_ref":  [
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Lessee, Operating Lease, Lease Not yet Commenced, Future Minimum Payments",
                            "label":  "Lessee, Operating Lease, Lease Not yet Commenced, Future Minimum Payments",
                            "terseLabel":  "Lessee, operating lease, lease not yet commenced, future minimum payments"
                            }
                        }
                    },
                "localname":  "LesseeOperatingLeaseLeaseNotYetCommencedFutureMinimumPayments",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesNarrativeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_LifetouchInc.Member":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "LifetouchInc.Member",
                            "terseLabel":  "Lifetouch"
                            }
                        }
                    },
                "localname":  "LifetouchInc.Member",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/AcquisitionNarrativeDetails",
                    "http://www.shutterfly.com/role/BalanceSheetComponentsGoodwillDetails",
                    "http://www.shutterfly.com/role/DebtNarrativeDetails",
                    "http://www.shutterfly.com/role/RevenuesConsumerRevenuesbyBrandDetails",
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_LifetouchMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "",
                            "label":  "Lifetouch [Member]",
                            "terseLabel":  "Lifetouch"
                            }
                        }
                    },
                "localname":  "LifetouchMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_LongtermInvestmentsMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "LongtermInvestmentsMember",
                            "terseLabel":  "Long-term investments"
                            }
                        }
                    },
                "localname":  "LongtermInvestmentsMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/InvestmentsScheduleofEstimatedFairValueDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_LovesParkIllinoisMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Loves Park, Illinois",
                            "label":  "Loves Park, Illinois [Member]",
                            "terseLabel":  "Loves Park, Illinois"
                            }
                        }
                    },
                "localname":  "LovesParkIllinoisMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAssetsHeldforSaleDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_MarketBasedRestrictedStockUnitsMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Market Based Restricted Stock Units",
                            "label":  "Market Based Restricted Stock Units [Member]",
                            "terseLabel":  "Market Based Restricted Stock Units"
                            }
                        }
                    },
                "localname":  "MarketBasedRestrictedStockUnitsMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_NumberOfFacilities":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Number of Facilities",
                            "label":  "Number of Facilities",
                            "terseLabel":  "Number of facilities"
                            }
                        }
                    },
                "localname":  "NumberOfFacilities",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAssetsHeldforSaleDetails"
                    ],
                "xbrltype":  "integerItemType"
                },
            "sfly_NumberOfFacilitiesClosed":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "",
                            "label":  "Number of Facilities Closed",
                            "terseLabel":  "Number of facilities closed"
                            }
                        }
                    },
                "localname":  "NumberOfFacilitiesClosed",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/RestructuringNarrativeDetails"
                    ],
                "xbrltype":  "integerItemType"
                },
            "sfly_OperatingLeaseRightofUseAssetAmortization":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  15.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInOperatingActivities",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Operating Lease, Right-of-Use Asset, Amortization",
                            "label":  "Operating Lease, Right-of-Use Asset, Amortization",
                            "terseLabel":  "Amortization of operating lease assets"
                            }
                        }
                    },
                "localname":  "OperatingLeaseRightofUseAssetAmortization",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_OtherBrandsMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "OtherBrandsMember",
                            "terseLabel":  "Other"
                            }
                        }
                    },
                "localname":  "OtherBrandsMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/RevenuesConsumerRevenuesbyBrandDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_OtherPrepaidExpensesAndCurrentAssets":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPrepaidExpensesandOtherCurrentAssetsDetails":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_PrepaidExpenseAndOtherAssetsCurrent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Other Prepaid Expenses and Current Assets",
                            "label":  "Other Prepaid Expenses and Current Assets",
                            "terseLabel":  "Other prepaid expenses and current assets"
                            }
                        }
                    },
                "localname":  "OtherPrepaidExpensesAndCurrentAssets",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPrepaidExpensesandOtherCurrentAssetsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_PerformanceBasedRestrictedStockUnitsMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Performance Based Restricted Stock Units",
                            "label":  "Performance Based Restricted Stock Units [Member]",
                            "terseLabel":  "Performance Based Restricted Stock Units"
                            }
                        }
                    },
                "localname":  "PerformanceBasedRestrictedStockUnitsMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_PlantAndEquipmentMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Plant and Equipment",
                            "label":  "Plant and Equipment [Member]",
                            "terseLabel":  "Plant and equipment"
                            }
                        }
                    },
                "localname":  "PlantAndEquipmentMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPropertyandEquipmentNetDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_PrepaidServiceContractsCurrent":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPrepaidExpensesandOtherCurrentAssetsDetails":  {
                        "order":  4.0,
                        "parentTag":  "us-gaap_PrepaidExpenseAndOtherAssetsCurrent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "PrepaidServiceContractsCurrent",
                            "terseLabel":  "Prepaid service contracts \u2013 current portion"
                            }
                        }
                    },
                "localname":  "PrepaidServiceContractsCurrent",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPrepaidExpensesandOtherCurrentAssetsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_PrincipalPaymentsOnFinanceLeasesAndFinancingObligations":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInFinancingActivities",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Principal Payments on Finance Leases and Financing Obligations",
                            "label":  "Principal Payments on Finance Leases and Financing Obligations",
                            "negatedTerseLabel":  "Principal payments of finance lease liabilities and financing obligations"
                            }
                        }
                    },
                "localname":  "PrincipalPaymentsOnFinanceLeasesAndFinancingObligations",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_PriorYearPlansMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Prior Year Plans",
                            "label":  "Prior Year Plans [Member]",
                            "terseLabel":  "Prior year plans"
                            }
                        }
                    },
                "localname":  "PriorYearPlansMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/RestructuringRestructuringReserveActivitiesDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_PropertyPlantandEquipmentPrimarilyCapitalizedSoftwareDevelopmentCostsMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Property, Plant and Equipment, Primarily Capitalized Software Development Costs [Member]",
                            "label":  "Property, Plant and Equipment, Primarily Capitalized Software Development Costs [Member]",
                            "terseLabel":  "Property and equipment"
                            }
                        }
                    },
                "localname":  "PropertyPlantandEquipmentPrimarilyCapitalizedSoftwareDevelopmentCostsMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/RestructuringRestructuringReserveActivitiesDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_Purchaseaccountingdeferredrevenueadjustment":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_OperatingIncomeLoss",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Purchaseaccountingdeferredrevenueadjustment",
                            "negatedTerseLabel":  "Purchase accounting deferred revenue adjustment"
                            }
                        }
                    },
                "localname":  "Purchaseaccountingdeferredrevenueadjustment",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_Purchaseaccountinginventoryadjustment":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_OperatingIncomeLoss",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Purchaseaccountinginventoryadjustment",
                            "negatedLabel":  "Purchaseaccountinginventoryadjustment"
                            }
                        }
                    },
                "localname":  "Purchaseaccountinginventoryadjustment",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_RestrictedStockUnitsExpectedToVestEndingPeriod":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "RestrictedStockUnitsExpectedToVestEndingPeriod",
                            "periodEndLabel":  "Restricted stock units expected to vest, ending period (in shares)"
                            }
                        }
                    },
                "localname":  "RestrictedStockUnitsExpectedToVestEndingPeriod",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationRestrictedStockUnitActivityDetails"
                    ],
                "xbrltype":  "sharesItemType"
                },
            "sfly_RestructuringAndOtherCharges":  {
                "auth_ref":  [
                    ],
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Restructuring And Other Charges",
                            "label":  "Restructuring And Other Charges",
                            "terseLabel":  "Restructuring Charges"
                            }
                        }
                    },
                "localname":  "RestructuringAndOtherCharges",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/RestructuringRestructuringReserveActivitiesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_RestructuringPlan2018Member":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "",
                            "label":  "Restructuring Plan 2018 [Member]",
                            "terseLabel":  "2018 Restructuring"
                            }
                        }
                    },
                "localname":  "RestructuringPlan2018Member",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/RestructuringNarrativeDetails",
                    "http://www.shutterfly.com/role/RestructuringRestructuringReserveActivitiesDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_RevenuefromContractwithCustomerExcludingAssessedTaxIncludingPurchaseAccountingAdjustment":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_GrossProfit",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "RevenuefromContractwithCustomerExcludingAssessedTaxIncludingPurchaseAccountingAdjustment",
                            "terseLabel":  "Net revenue including purchase accounting adjustment"
                            }
                        }
                    },
                "localname":  "RevenuefromContractwithCustomerExcludingAssessedTaxIncludingPurchaseAccountingAdjustment",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_ScheduleOfCashFlowInformationRelatingToLeasesTableTextBlock":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Schedule of Cash Flow Information Relating to Leases",
                            "label":  "Schedule of Cash Flow Information Relating to Leases [Table Text Block]",
                            "terseLabel":  "Schedule of Cash Flow Information Relating to Leases"
                            }
                        }
                    },
                "localname":  "ScheduleOfCashFlowInformationRelatingToLeasesTableTextBlock",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "sfly_ScheduleOfDerivativeAssetsAndLiabilitiesAtFairValueTableTextBlock":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Schedule of Derivative Assets and Liabilities at Fair Value",
                            "label":  "Schedule of Derivative Assets and Liabilities at Fair Value [Table Text Block]",
                            "terseLabel":  "Fair value, derivative assets and liabilities"
                            }
                        }
                    },
                "localname":  "ScheduleOfDerivativeAssetsAndLiabilitiesAtFairValueTableTextBlock",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/FairValueMeasurementTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "sfly_ScheduleOfEffectiveInterestRatesTableTextBlock":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Schedule of Effective Interest Rates",
                            "label":  "Schedule of Effective Interest Rates [Table Text Block]",
                            "terseLabel":  "Schedule of effective interest rates"
                            }
                        }
                    },
                "localname":  "ScheduleOfEffectiveInterestRatesTableTextBlock",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "sfly_ScheduleOfFutureMinimumRentalPaymentsForOperatingAndCapitalLeasesTableTextBlock":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Schedule of Future Minimum Rental Payments for Operating And Capital Leases",
                            "label":  "Schedule of Future Minimum Rental Payments for Operating And Capital Leases [Table Text Block]",
                            "terseLabel":  "Schedule of Future Minimum Rental Payments for Operating And Capital Leases"
                            }
                        }
                    },
                "localname":  "ScheduleOfFutureMinimumRentalPaymentsForOperatingAndCapitalLeasesTableTextBlock",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "sfly_ScheduleOfFutureObligationsForBuildtoSuitLeasesTableTextBlock":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Schedule of Future Obligations for Build-to-Suit Leases",
                            "label":  "Schedule of Future Obligations for Build-to-Suit Leases [Table Text Block]",
                            "terseLabel":  "Schedule of Future Obligations for Build-to-Suit Leases"
                            }
                        }
                    },
                "localname":  "ScheduleOfFutureObligationsForBuildtoSuitLeasesTableTextBlock",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "sfly_ScheduleOfLeaseTermAndDiscountRateTableTextBlock":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Schedule of Lease Term and Discount Rate",
                            "label":  "Schedule of Lease Term and Discount Rate [Table Text Block]",
                            "terseLabel":  "Schedule of Lease Term and Discount Rate"
                            }
                        }
                    },
                "localname":  "ScheduleOfLeaseTermAndDiscountRateTableTextBlock",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "sfly_ScheduleOfRightofUseAssetsAndLeaseLiabilitiesTableTextBlock":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Schedule of Right-of-Use Assets and Lease Liabilities",
                            "label":  "Schedule of Right-of-Use Assets and Lease Liabilities [Table Text Block]",
                            "terseLabel":  "Schedule of Right-of-Use Assets and Lease Liabilities"
                            }
                        }
                    },
                "localname":  "ScheduleOfRightofUseAssetsAndLeaseLiabilitiesTableTextBlock",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "sfly_ScheduleofOtherNoncurrentLiabilitiesTableTextBlock":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "ScheduleofOtherNoncurrentLiabilitiesTableTextBlock",
                            "terseLabel":  "Schedule of other liabilities"
                            }
                        }
                    },
                "localname":  "ScheduleofOtherNoncurrentLiabilitiesTableTextBlock",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "sfly_ShareRepurchaseProgramAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Share Repurchase Program [Abstract]",
                            "label":  "Share Repurchase Program [Abstract]"
                            }
                        }
                    },
                "localname":  "ShareRepurchaseProgramAbstract",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "xbrltype":  "stringItemType"
                },
            "sfly_SharebasedCompensationArrangementBySharebasedPaymentAwardMarketCriteriaPeriod":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Share-based Compensation Arrangement by Share-based Payment Award, Market Criteria, Period",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Market Criteria, Period",
                            "terseLabel":  "Market criteria, period"
                            }
                        }
                    },
                "localname":  "SharebasedCompensationArrangementBySharebasedPaymentAwardMarketCriteriaPeriod",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationDetails"
                    ],
                "xbrltype":  "durationItemType"
                },
            "sfly_ShippingServicesNotIncludedInCostOfNetRevenueMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Shipping Services Not Included in Cost of Net Revenue",
                            "label":  "Shipping Services Not Included in Cost of Net Revenue [Member]",
                            "terseLabel":  "Shipping Services Not Included in Cost of Net Revenue"
                            }
                        }
                    },
                "localname":  "ShippingServicesNotIncludedInCostOfNetRevenueMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_ShutterflyBrandCoreMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Shutterfly Brand Core",
                            "label":  "Shutterfly Brand Core [Member]",
                            "terseLabel":  "Shutterfly Brand Core"
                            }
                        }
                    },
                "localname":  "ShutterflyBrandCoreMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/RevenuesConsumerRevenuesbyBrandDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_ShutterflyBrandPersonalizedGiftsAndHomeDecorMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Shutterfly Brand Personalized Gifts and Home Decor",
                            "label":  "Shutterfly Brand Personalized Gifts and Home Decor [Member]",
                            "terseLabel":  "Shutterfly Brand Personalized Gifts and Home Decor"
                            }
                        }
                    },
                "localname":  "ShutterflyBrandPersonalizedGiftsAndHomeDecorMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/RevenuesConsumerRevenuesbyBrandDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_ShutterflyBusinessSegmentsSBSMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "ShutterflyBusinessSegmentsSBSMember",
                            "terseLabel":  "Shutterfly Business Solutions"
                            }
                        }
                    },
                "localname":  "ShutterflyBusinessSegmentsSBSMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsGoodwillDetails",
                    "http://www.shutterfly.com/role/RevenuesConsumerRevenuesbyBrandDetails",
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_ShutterflyIncMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Shutterfly, Inc.",
                            "label":  "Shutterfly, Inc. [Member]",
                            "terseLabel":  "Shutterfly, Inc."
                            }
                        }
                    },
                "localname":  "ShutterflyIncMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_SignificantAccountingPoliciesPolicyTextBlock":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Significant Accounting Policies",
                            "label":  "Significant Accounting Policies [Policy Text Block]",
                            "terseLabel":  "Summary of Significant Accounting Policies"
                            }
                        }
                    },
                "localname":  "SignificantAccountingPoliciesPolicyTextBlock",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesPolicies"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "sfly_SoftwareAndWebsiteDevelopmentCostsMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "SoftwareAndWebsiteDevelopmentCostsMember",
                            "terseLabel":  "Capitalized software and website development costs"
                            }
                        }
                    },
                "localname":  "SoftwareAndWebsiteDevelopmentCostsMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPropertyandEquipmentNetDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_StockIssuedDuringPeriod":  {
                "auth_ref":  [
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Gross value of stock issued during period as a result of any equity-based compensation plan or pursuant to acquisitions.",
                            "label":  "Stock Issued During Period",
                            "terseLabel":  "Issuance of common stock upon exercise of options and vesting of restricted stock units"
                            }
                        }
                    },
                "localname":  "StockIssuedDuringPeriod",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_StockRepurchaseProgramAdditionalAuthorizedAmount":  {
                "auth_ref":  [
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Stock Repurchase Program, Additional Authorized Amount",
                            "label":  "Stock Repurchase Program, Additional Authorized Amount",
                            "terseLabel":  "Stock repurchase program, additional authorized amount"
                            }
                        }
                    },
                "localname":  "StockRepurchaseProgramAdditionalAuthorizedAmount",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/ShareRepurchaseProgramNarrativeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_StockRepurchaseProgramTextBlock":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "StockRepurchaseProgramTextBlock",
                            "terseLabel":  "Share Repurchase Program"
                            }
                        }
                    },
                "localname":  "StockRepurchaseProgramTextBlock",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/ShareRepurchaseProgram"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "sfly_TechnologyAndDevelopmentExpenses":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_OperatingExpenses",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails":  {
                        "order":  4.0,
                        "parentTag":  "us-gaap_GrossProfit",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "TechnologyAndDevelopmentExpenses",
                            "verboseLabel":  "Technology and development"
                            }
                        }
                    },
                "localname":  "TechnologyAndDevelopmentExpenses",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS",
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "sfly_TechnologyAndDevelopmentMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "TechnologyAndDevelopmentMember",
                            "verboseLabel":  "Technology and development"
                            }
                        }
                    },
                "localname":  "TechnologyAndDevelopmentMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationExpenseDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_TermLoanFacilityMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "TermLoanFacilityMember",
                            "terseLabel":  "Term Loan facility"
                            }
                        }
                    },
                "localname":  "TermLoanFacilityMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_TinyPrintsBoutiqueMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "TinyPrintsBoutiqueMember",
                            "terseLabel":  "Tiny Prints Boutique"
                            }
                        }
                    },
                "localname":  "TinyPrintsBoutiqueMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/RevenuesConsumerRevenuesbyBrandDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_UnderstatedInPriorYearMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "",
                            "label":  "Understated in Prior Year [Member]",
                            "terseLabel":  "Understated in Prior Year"
                            }
                        }
                    },
                "localname":  "UnderstatedInPriorYearMember",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "sfly_WeightedAverageContractualTermYearsAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "-- None.  No documentation exists for this element. --",
                            "label":  "Weighted Average Contractual Term (Years) [Abstract]",
                            "terseLabel":  "Weighted Average Remaining Contractual Term (years)"
                            }
                        }
                    },
                "localname":  "WeightedAverageContractualTermYearsAbstract",
                "nsuri":  "http://www.shutterfly.com/20190630",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "srt_ConsolidationItemsAxis":  {
                "auth_ref":  [
                    "r109",
                    "r120"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Consolidation Items [Axis]",
                            "terseLabel":  "Consolidation Items [Axis]"
                            }
                        }
                    },
                "localname":  "ConsolidationItemsAxis",
                "nsuri":  "http://fasb.org/srt/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails",
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "srt_ConsolidationItemsDomain":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Consolidation Items [Domain]",
                            "terseLabel":  "Consolidation Items [Domain]"
                            }
                        }
                    },
                "localname":  "ConsolidationItemsDomain",
                "nsuri":  "http://fasb.org/srt/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails",
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "srt_MaximumMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Maximum [Member]",
                            "terseLabel":  "Maximum"
                            }
                        }
                    },
                "localname":  "MaximumMember",
                "nsuri":  "http://fasb.org/srt/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtNarrativeDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "srt_MinimumMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Minimum [Member]",
                            "terseLabel":  "Minimum"
                            }
                        }
                    },
                "localname":  "MinimumMember",
                "nsuri":  "http://fasb.org/srt/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtNarrativeDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "srt_ProductOrServiceAxis":  {
                "auth_ref":  [
                    "r121",
                    "r197",
                    "r200",
                    "r367"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Product and Service [Axis]",
                            "terseLabel":  "Product and Service [Axis]"
                            }
                        }
                    },
                "localname":  "ProductOrServiceAxis",
                "nsuri":  "http://fasb.org/srt/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/RevenuesConsumerRevenuesbyBrandDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "srt_ProductsAndServicesDomain":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Product and Service [Domain]",
                            "terseLabel":  "Product and Service [Domain]"
                            }
                        }
                    },
                "localname":  "ProductsAndServicesDomain",
                "nsuri":  "http://fasb.org/srt/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/RevenuesConsumerRevenuesbyBrandDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "srt_RangeAxis":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Range [Axis]",
                            "terseLabel":  "Range [Axis]"
                            }
                        }
                    },
                "localname":  "RangeAxis",
                "nsuri":  "http://fasb.org/srt/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails",
                    "http://www.shutterfly.com/role/DebtNarrativeDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "srt_RangeMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Range [Domain]",
                            "terseLabel":  "Range [Domain]"
                            }
                        }
                    },
                "localname":  "RangeMember",
                "nsuri":  "http://fasb.org/srt/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails",
                    "http://www.shutterfly.com/role/DebtNarrativeDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "srt_RestatementAdjustmentMember":  {
                "auth_ref":  [
                    "r98",
                    "r99",
                    "r100",
                    "r101"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Restatement Adjustment [Member]",
                            "terseLabel":  "Restatement Adjustment"
                            }
                        }
                    },
                "localname":  "RestatementAdjustmentMember",
                "nsuri":  "http://fasb.org/srt/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "srt_RestatementAxis":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Restatement [Axis]",
                            "terseLabel":  "Restatement [Axis]"
                            }
                        }
                    },
                "localname":  "RestatementAxis",
                "nsuri":  "http://fasb.org/srt/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "srt_RestatementDomain":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Restatement [Domain]",
                            "terseLabel":  "Restatement [Domain]"
                            }
                        }
                    },
                "localname":  "RestatementDomain",
                "nsuri":  "http://fasb.org/srt/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "srt_SegmentGeographicalDomain":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Geographical [Domain]",
                            "terseLabel":  "Geographical [Domain]"
                            }
                        }
                    },
                "localname":  "SegmentGeographicalDomain",
                "nsuri":  "http://fasb.org/srt/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAssetsHeldforSaleDetails",
                    "http://www.shutterfly.com/role/LeasesNarrativeDetails",
                    "http://www.shutterfly.com/role/RestructuringNarrativeDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "srt_StatementGeographicalAxis":  {
                "auth_ref":  [
                    "r122",
                    "r197",
                    "r201",
                    "r374",
                    "r375"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Geographical [Axis]",
                            "terseLabel":  "Geographical [Axis]"
                            }
                        }
                    },
                "localname":  "StatementGeographicalAxis",
                "nsuri":  "http://fasb.org/srt/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAssetsHeldforSaleDetails",
                    "http://www.shutterfly.com/role/LeasesNarrativeDetails",
                    "http://www.shutterfly.com/role/RestructuringNarrativeDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "srt_WeightedAverageMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Weighted Average [Member]",
                            "terseLabel":  "Weighted Average"
                            }
                        }
                    },
                "localname":  "WeightedAverageMember",
                "nsuri":  "http://fasb.org/srt/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "stpr_TX":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "TEXAS",
                            "terseLabel":  "Texas"
                            }
                        }
                    },
                "localname":  "TX",
                "nsuri":  "http://xbrl.sec.gov/stpr/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesNarrativeDetails",
                    "http://www.shutterfly.com/role/RestructuringNarrativeDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_AccountingPoliciesAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Accounting Policies [Abstract]",
                            "terseLabel":  "Accounting Policies [Abstract]"
                            }
                        }
                    },
                "localname":  "AccountingPoliciesAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "xbrltype":  "stringItemType"
                },
            "us-gaap_AccountingStandardsUpdate201409Member":  {
                "auth_ref":  [
                    "r202"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Accounting Standards Update 2014-09 Revenue from Contracts with Customers (Topic 606).",
                            "label":  "Accounting Standards Update 2014-09 [Member]",
                            "terseLabel":  "Accounting Standards Update 2014-09"
                            }
                        }
                    },
                "localname":  "AccountingStandardsUpdate201409Member",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_AccountingStandardsUpdate201602Member":  {
                "auth_ref":  [
                    "r313"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Accounting Standards Update 2016-02 Leases (Topic 842).",
                            "label":  "Accounting Standards Update 2016-02 [Member]",
                            "terseLabel":  "Accounting Standards Update 2016-02"
                            }
                        }
                    },
                "localname":  "AccountingStandardsUpdate201602Member",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_AccountsPayableCurrent":  {
                "auth_ref":  [
                    "r31"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_LiabilitiesCurrent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.  Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
                            "label":  "Accounts Payable, Current",
                            "verboseLabel":  "Accounts payable"
                            }
                        }
                    },
                "localname":  "AccountsPayableCurrent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_AccountsReceivableNetCurrent":  {
                "auth_ref":  [
                    "r18",
                    "r198"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_AssetsCurrent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.",
                            "label":  "Accounts Receivable, Net, Current",
                            "terseLabel":  "Accounts receivable, net"
                            }
                        }
                    },
                "localname":  "AccountsReceivableNetCurrent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_AccruedLiabilitiesCurrent":  {
                "auth_ref":  [
                    "r35"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccruedLiabilitiesDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        },
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_LiabilitiesCurrent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered.  Examples include taxes, interest, rent and utilities.  Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
                            "label":  "Accrued Liabilities, Current",
                            "totalLabel":  "Total accrued liabilities",
                            "verboseLabel":  "Accrued liabilities"
                            }
                        }
                    },
                "localname":  "AccruedLiabilitiesCurrent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccruedLiabilitiesDetails",
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_AccruedLiabilitiesCurrentAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Accrued Liabilities, Current [Abstract]",
                            "verboseLabel":  "Accrued Liabilities, Current [Abstract]"
                            }
                        }
                    },
                "localname":  "AccruedLiabilitiesCurrentAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccruedLiabilitiesDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_AccruedMarketingCostsCurrent":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccruedLiabilitiesDetails":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_AccruedLiabilitiesCurrent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Carrying value as of the balance sheet date of obligations incurred through that date and payable for the marketing, trade and selling of the entity's goods and services.   Marketing costs would include expenditures for planning and executing the conception, pricing, promotion, and distribution of ideas, goods, and services; costs of public relations and corporate promotions; and obligations incurred and payable for sales discounts, rebates, price protection programs, etc. offered to customers and under government programs.  Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
                            "label":  "Accrued Marketing Costs, Current",
                            "terseLabel":  "Accrued marketing expenses"
                            }
                        }
                    },
                "localname":  "AccruedMarketingCostsCurrent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccruedLiabilitiesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_AccruedProfessionalFeesCurrent":  {
                "auth_ref":  [
                    "r6",
                    "r7",
                    "r35"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccruedLiabilitiesDetails":  {
                        "order":  6.0,
                        "parentTag":  "us-gaap_AccruedLiabilitiesCurrent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received.  Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
                            "label":  "Accrued Professional Fees, Current",
                            "terseLabel":  "Accrued professional services"
                            }
                        }
                    },
                "localname":  "AccruedProfessionalFeesCurrent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccruedLiabilitiesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment":  {
                "auth_ref":  [
                    "r29",
                    "r154"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPropertyandEquipmentNetDetails":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_PropertyPlantAndEquipmentNet",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.",
                            "label":  "Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment",
                            "negatedLabel":  "Less:  Accumulated depreciation and amortization"
                            }
                        }
                    },
                "localname":  "AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPropertyandEquipmentNetDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax":  {
                "auth_ref":  [
                    "r49",
                    "r52",
                    "r54",
                    "r55"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccumulatedOtherComprehensiveLossIncomeDetails":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Accumulated unrealized gain (loss), after tax, on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
                            "label":  "Accumulated Other Comprehensive Income (Loss), Debt Securities, Available-for-sale, Adjustment, after Tax",
                            "terseLabel":  "Unrealized gain (loss) on investments, net of tax"
                            }
                        }
                    },
                "localname":  "AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccumulatedOtherComprehensiveLossIncomeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax":  {
                "auth_ref":  [
                    "r47",
                    "r52",
                    "r54",
                    "r55",
                    "r303",
                    "r304"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccumulatedOtherComprehensiveLossIncomeDetails":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.",
                            "label":  "Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax",
                            "terseLabel":  "Foreign currency translation losses"
                            }
                        }
                    },
                "localname":  "AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccumulatedOtherComprehensiveLossIncomeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax":  {
                "auth_ref":  [
                    "r52",
                    "r54",
                    "r55"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccumulatedOtherComprehensiveLossIncomeDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        },
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_StockholdersEquity",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end.  Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners.  Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.",
                            "label":  "Accumulated Other Comprehensive Income (Loss), Net of Tax",
                            "totalLabel":  "Accumulated other comprehensive income, net",
                            "verboseLabel":  "Accumulated other comprehensive (loss) income"
                            }
                        }
                    },
                "localname":  "AccumulatedOtherComprehensiveIncomeLossNetOfTax",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccumulatedOtherComprehensiveLossIncomeDetails",
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_AccumulatedOtherComprehensiveIncomeMember":  {
                "auth_ref":  [
                    "r51",
                    "r55",
                    "r56",
                    "r267"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Accumulated increase (decrease) in equity from transactions and other events and circumstances from non-owner sources, attributable to the parent.  Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners.",
                            "label":  "AOCI Attributable to Parent [Member]",
                            "terseLabel":  "Accumulated other comprehensive income"
                            }
                        }
                    },
                "localname":  "AccumulatedOtherComprehensiveIncomeMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_AdditionalPaidInCapitalCommonStock":  {
                "auth_ref":  [
                    "r19"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_StockholdersEquity",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions.  Includes only common stock transactions (excludes preferred stock transactions).  May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.",
                            "label":  "Additional Paid in Capital, Common Stock",
                            "verboseLabel":  "Additional paid-in capital"
                            }
                        }
                    },
                "localname":  "AdditionalPaidInCapitalCommonStock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_AdditionalPaidInCapitalMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders.",
                            "label":  "Additional Paid-in Capital [Member]",
                            "terseLabel":  "Additional paid-in capital"
                            }
                        }
                    },
                "localname":  "AdditionalPaidInCapitalMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_AdjustmentsForErrorCorrectionDomain":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Represents the types error corrections made to the financial statements.",
                            "label":  "Adjustments for Error Correction [Domain]",
                            "terseLabel":  "Adjustments for Error Correction [Domain]"
                            }
                        }
                    },
                "localname":  "AdjustmentsForErrorCorrectionDomain",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails",
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_AdjustmentsForNewAccountingPronouncementsAxis":  {
                "auth_ref":  [
                    "r97"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by new accounting pronouncement.",
                            "label":  "Adjustments for New Accounting Pronouncements [Axis]",
                            "terseLabel":  "Adjustments for New Accounting Pronouncements [Axis]"
                            }
                        }
                    },
                "localname":  "AdjustmentsForNewAccountingPronouncementsAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_AdjustmentsToAdditionalPaidInCapitalConvertibleDebtWithConversionFeature":  {
                "auth_ref":  [
                    "r186",
                    "r191",
                    "r247"
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of increase (decrease) in additional paid in capital (APIC) resulting from recognition of deferred taxes for convertible debt with a beneficial conversion feature.",
                            "label":  "Adjustments to Additional Paid in Capital, Convertible Debt with Conversion Feature",
                            "terseLabel":  "Convertible notes settlement"
                            }
                        }
                    },
                "localname":  "AdjustmentsToAdditionalPaidInCapitalConvertibleDebtWithConversionFeature",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue":  {
                "auth_ref":  [
                    "r207",
                    "r209",
                    "r241",
                    "r242"
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of increase to additional paid-in capital (APIC) from recognition of equity-based compensation.",
                            "label":  "Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition",
                            "terseLabel":  "Stock-based compensation, net of forfeitures"
                            }
                        }
                    },
                "localname":  "AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]",
                            "terseLabel":  "Adjustments to reconcile net loss to net cash used in operating activities:"
                            }
                        }
                    },
                "localname":  "AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_AgencySecuritiesMember":  {
                "auth_ref":  [
                    "r134"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Securities issued by government sponsored entities.",
                            "label":  "Agency Securities [Member]",
                            "terseLabel":  "Agency securities"
                            }
                        }
                    },
                "localname":  "AgencySecuritiesMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/FairValueMeasurementCashEquivalentsandInvestmentsDetails",
                    "http://www.shutterfly.com/role/InvestmentsScheduleofEstimatedFairValueDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_AllocatedShareBasedCompensationExpense":  {
                "auth_ref":  [
                    "r209",
                    "r235",
                    "r240"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails":  {
                        "order":  5.0,
                        "parentTag":  "us-gaap_OperatingIncomeLoss",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.",
                            "label":  "Allocated Share-based Compensation Expense",
                            "negatedTerseLabel":  "Stock-based compensation expense for operating segments",
                            "terseLabel":  "Stock-based compensation for operating segments"
                            }
                        }
                    },
                "localname":  "AllocatedShareBasedCompensationExpense",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails",
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationExpenseDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_AmortizationOfFinancingCosts":  {
                "auth_ref":  [
                    "r66",
                    "r87",
                    "r308"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/DebtScheduleofInterestExpenseDetails":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_InterestExpenseDebt",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of amortization expense attributable to debt issuance costs.",
                            "label":  "Amortization of Debt Issuance Costs",
                            "terseLabel":  "Amortization of debt issuance costs"
                            }
                        }
                    },
                "localname":  "AmortizationOfFinancingCosts",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtScheduleofInterestExpenseDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_AmortizationOfFinancingCostsAndDiscounts":  {
                "auth_ref":  [
                    "r87",
                    "r308"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  4.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInOperatingActivities",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of amortization expense attributable to debt discount (premium) and debt issuance costs.",
                            "label":  "Amortization of Debt Issuance Costs and Discounts",
                            "terseLabel":  "Amortization of debt discount and issuance costs"
                            }
                        }
                    },
                "localname":  "AmortizationOfFinancingCostsAndDiscounts",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_AmortizationOfIntangibleAssets":  {
                "auth_ref":  [
                    "r87",
                    "r142",
                    "r149"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInOperatingActivities",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails":  {
                        "order":  4.0,
                        "parentTag":  "us-gaap_OperatingIncomeLoss",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets.  As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.",
                            "label":  "Amortization of Intangible Assets",
                            "negatedTerseLabel":  "Amortization of intangible assets",
                            "terseLabel":  "Amortization of intangible assets"
                            }
                        }
                    },
                "localname":  "AmortizationOfIntangibleAssets",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS",
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount":  {
                "auth_ref":  [
                    "r104"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/NetLossPerShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsperShareDetails":  {
                        "order":  2.0,
                        "parentTag":  "sfly_AntidilutiveSecuritiesIncludedExcludedFromComputationOfEarningsPerShareAmountNet",
                        "weight":  1.0
                        }
                    },
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.",
                            "label":  "Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount",
                            "terseLabel":  "Weighted average stock options and RSU's that would have been excluded in the computation of the dilutive common equivalent shares outstanding if net income had been reported due to their antidilutive effect (shares)",
                            "verboseLabel":  "Antidilutive securities excluded from computations of earnings per share"
                            }
                        }
                    },
                "localname":  "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/NetLossPerShareNarrativeDetails",
                    "http://www.shutterfly.com/role/NetLossPerShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsperShareDetails"
                    ],
                "xbrltype":  "sharesItemType"
                },
            "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis":  {
                "auth_ref":  [
                    "r104"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by type of antidilutive security.",
                            "label":  "Antidilutive Securities [Axis]",
                            "terseLabel":  "Antidilutive Securities [Axis]"
                            }
                        }
                    },
                "localname":  "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/NetLossPerShareNarrativeDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Line items represent financial concepts included in a table.  These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
                            "label":  "Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]",
                            "terseLabel":  "Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]"
                            }
                        }
                    },
                "localname":  "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/NetLossPerShareNarrativeDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_AntidilutiveSecuritiesNameDomain":  {
                "auth_ref":  [
                    "r104"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Incremental common shares attributable to securities that were not included in diluted earnings per share (EPS) because to do so would increase EPS amounts or decrease loss per share amounts for the period presented.",
                            "label":  "Antidilutive Securities, Name [Domain]",
                            "terseLabel":  "Antidilutive Securities, Name [Domain]"
                            }
                        }
                    },
                "localname":  "AntidilutiveSecuritiesNameDomain",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/NetLossPerShareNarrativeDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_AociLossCashFlowHedgeCumulativeGainLossAfterTax":  {
                "auth_ref":  [
                    "r52"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccumulatedOtherComprehensiveLossIncomeDetails":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount, after tax, of accumulated gain (loss) on derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.",
                            "label":  "AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax",
                            "terseLabel":  "Unrealized (loss) gain on cash flow hedges, net of tax"
                            }
                        }
                    },
                "localname":  "AociLossCashFlowHedgeCumulativeGainLossAfterTax",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccumulatedOtherComprehensiveLossIncomeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_AreaOfLand":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Area of land held.",
                            "label":  "Area of Land",
                            "terseLabel":  "Area of land (in acres)"
                            }
                        }
                    },
                "localname":  "AreaOfLand",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAssetsHeldforSaleDetails"
                    ],
                "xbrltype":  "areaItemType"
                },
            "us-gaap_AreaOfRealEstateProperty":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Area of a real estate property.",
                            "label":  "Area of Real Estate Property",
                            "terseLabel":  "Area of real estate property"
                            }
                        }
                    },
                "localname":  "AreaOfRealEstateProperty",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesNarrativeDetails",
                    "http://www.shutterfly.com/role/RestructuringNarrativeDetails"
                    ],
                "xbrltype":  "areaItemType"
                },
            "us-gaap_Assets":  {
                "auth_ref":  [
                    "r114",
                    "r341",
                    "r358"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Sum of the carrying amounts as of the balance sheet date of all assets that are recognized.  Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.",
                            "label":  "Assets",
                            "totalLabel":  "Total assets",
                            "verboseLabel":  "Assets"
                            }
                        }
                    },
                "localname":  "Assets",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS",
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_AssetsAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Assets [Abstract]",
                            "terseLabel":  "ASSETS"
                            }
                        }
                    },
                "localname":  "AssetsAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_AssetsCurrent":  {
                "auth_ref":  [
                    "r4",
                    "r5",
                    "r43"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_Assets",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer).  Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.",
                            "label":  "Assets, Current",
                            "totalLabel":  "Total current assets"
                            }
                        }
                    },
                "localname":  "AssetsCurrent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_AssetsCurrentAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Assets, Current [Abstract]",
                            "terseLabel":  "Current assets:"
                            }
                        }
                    },
                "localname":  "AssetsCurrentAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_AssetsHeldForSaleNotPartOfDisposalGroup":  {
                "auth_ref":  [
                    "r152"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  6.0,
                        "parentTag":  "us-gaap_AssetsCurrent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of assets held-for-sale that are not part of a disposal group.",
                            "label":  "Assets Held-for-sale, Not Part of Disposal Group",
                            "terseLabel":  "Assets held for sale"
                            }
                        }
                    },
                "localname":  "AssetsHeldForSaleNotPartOfDisposalGroup",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAssetsHeldforSaleDetails",
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax":  {
                "auth_ref":  [
                    "r130"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/InvestmentsScheduleofEstimatedFairValueDetails":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
                            "label":  "Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax",
                            "terseLabel":  "Gross Unrealized Gains"
                            }
                        }
                    },
                "localname":  "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/InvestmentsScheduleofEstimatedFairValueDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax":  {
                "auth_ref":  [
                    "r131"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/InvestmentsScheduleofEstimatedFairValueDetails":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
                            "label":  "Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax",
                            "negatedTerseLabel":  "Gross Unrealized Losses"
                            }
                        }
                    },
                "localname":  "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/InvestmentsScheduleofEstimatedFairValueDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis":  {
                "auth_ref":  [
                    "r128"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/InvestmentsScheduleofEstimatedFairValueDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
                            "label":  "Debt Securities, Available-for-sale, Amortized Cost",
                            "totalLabel":  "Amortized Cost"
                            }
                        }
                    },
                "localname":  "AvailableForSaleDebtSecuritiesAmortizedCostBasis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/InvestmentsScheduleofEstimatedFairValueDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue":  {
                "auth_ref":  [
                    "r132",
                    "r133",
                    "r353"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/InvestmentsSummaryofContractualMaturitiesDetails":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_AvailableForSaleSecuritiesDebtSecurities",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), maturing in next fiscal year following latest fiscal year.  Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.",
                            "label":  "Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value",
                            "terseLabel":  "One year or less"
                            }
                        }
                    },
                "localname":  "AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/InvestmentsSummaryofContractualMaturitiesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_AvailableForSaleSecuritiesDebtSecurities":  {
                "auth_ref":  [
                    "r125",
                    "r129"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/InvestmentsScheduleofEstimatedFairValueDetails":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/InvestmentsSummaryofContractualMaturitiesDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
                            "label":  "Debt Securities, Available-for-sale",
                            "terseLabel":  "Estimated Fair Value",
                            "totalLabel":  "Total"
                            }
                        }
                    },
                "localname":  "AvailableForSaleSecuritiesDebtSecurities",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/InvestmentsScheduleofEstimatedFairValueDetails",
                    "http://www.shutterfly.com/role/InvestmentsSummaryofContractualMaturitiesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_AwardTypeAxis":  {
                "auth_ref":  [
                    "r210",
                    "r237"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by award type pertaining to equity-based compensation.",
                            "label":  "Award Type [Axis]",
                            "terseLabel":  "Award Type [Axis]"
                            }
                        }
                    },
                "localname":  "AwardTypeAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationRestrictedStockUnitActivityDetails",
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationDetails",
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_BalanceSheetLocationAxis":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by location on balance sheet (statement of financial position).",
                            "label":  "Balance Sheet Location [Axis]",
                            "terseLabel":  "Balance Sheet Location [Axis]"
                            }
                        }
                    },
                "localname":  "BalanceSheetLocationAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_BalanceSheetLocationDomain":  {
                "auth_ref":  [
                    "r276",
                    "r280"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Location in the balance sheet (statement of financial position).",
                            "label":  "Balance Sheet Location [Domain]",
                            "terseLabel":  "Balance Sheet Location [Domain]"
                            }
                        }
                    },
                "localname":  "BalanceSheetLocationDomain",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_BalanceSheetRelatedDisclosuresAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Balance Sheet Related Disclosures [Abstract]",
                            "terseLabel":  "Balance Sheet Related Disclosures [Abstract]",
                            "verboseLabel":  "Balance Sheet Related Disclosures [Abstract]"
                            }
                        }
                    },
                "localname":  "BalanceSheetRelatedDisclosuresAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "xbrltype":  "stringItemType"
                },
            "us-gaap_BasisOfAccountingPolicyPolicyTextBlock":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).",
                            "label":  "Basis of Accounting, Policy [Policy Text Block]",
                            "terseLabel":  "Basis of Presentation"
                            }
                        }
                    },
                "localname":  "BasisOfAccountingPolicyPolicyTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesPolicies"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_BasisOfPresentationAndSignificantAccountingPoliciesTextBlock":  {
                "auth_ref":  [
                    "r96"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The entire disclosure for the basis of presentation and significant accounting policies concepts.  Basis of presentation describes the underlying basis used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).  Accounting policies describe all significant accounting policies of the reporting entity.",
                            "label":  "Basis of Presentation and Significant Accounting Policies [Text Block]",
                            "verboseLabel":  "The Company and Summary of Significant Accounting Policies"
                            }
                        }
                    },
                "localname":  "BasisOfPresentationAndSignificantAccountingPoliciesTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPolicies"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_BusinessAcquisitionAcquireeDomain":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Identification of the acquiree in a material business combination (or series of individually immaterial business combinations), which may include the name or other type of identification of the acquiree.",
                            "label":  "Business Acquisition, Acquiree [Domain]",
                            "terseLabel":  "Business Acquisition, Acquiree [Domain]"
                            }
                        }
                    },
                "localname":  "BusinessAcquisitionAcquireeDomain",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/AcquisitionNarrativeDetails",
                    "http://www.shutterfly.com/role/DebtNarrativeDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails",
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_BusinessAcquisitionAxis":  {
                "auth_ref":  [
                    "r253",
                    "r254"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by business combination or series of individually immaterial business combinations.",
                            "label":  "Business Acquisition [Axis]",
                            "terseLabel":  "Business Acquisition [Axis]"
                            }
                        }
                    },
                "localname":  "BusinessAcquisitionAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/AcquisitionNarrativeDetails",
                    "http://www.shutterfly.com/role/DebtNarrativeDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails",
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_BusinessAcquisitionLineItems":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Line items represent financial concepts included in a table.  These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
                            "label":  "Business Acquisition [Line Items]",
                            "terseLabel":  "Business Acquisition [Line Items]"
                            }
                        }
                    },
                "localname":  "BusinessAcquisitionLineItems",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/AcquisitionNarrativeDetails",
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic":  {
                "auth_ref":  [
                    "r251",
                    "r252"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.",
                            "label":  "Business Acquisition, Pro Forma Earnings Per Share, Basic",
                            "terseLabel":  "Basic loss per share (in dollars per share)"
                            }
                        }
                    },
                "localname":  "BusinessAcquisitionProFormaEarningsPerShareBasic",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/AcquisitionProFormaInformationDetails"
                    ],
                "xbrltype":  "perShareItemType"
                },
            "us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted":  {
                "auth_ref":  [
                    "r251",
                    "r252"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.",
                            "label":  "Business Acquisition, Pro Forma Earnings Per Share, Diluted",
                            "terseLabel":  "Diluted loss per share (in dollars per share)"
                            }
                        }
                    },
                "localname":  "BusinessAcquisitionProFormaEarningsPerShareDiluted",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/AcquisitionProFormaInformationDetails"
                    ],
                "xbrltype":  "perShareItemType"
                },
            "us-gaap_BusinessAcquisitionProFormaInformationTextBlock":  {
                "auth_ref":  [
                    "r251",
                    "r252"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of pro forma results of operations for a material business acquisition or series of individually immaterial business acquisitions that are material in the aggregate.",
                            "label":  "Business Acquisition, Pro Forma Information [Table Text Block]",
                            "terseLabel":  "Schedule of Unaudited Pro Forma Financial Information"
                            }
                        }
                    },
                "localname":  "BusinessAcquisitionProFormaInformationTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/AcquisitionTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_BusinessAcquisitionSharePrice":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.",
                            "label":  "Business Acquisition, Share Price",
                            "terseLabel":  "Business acquisition, share price (in usd per share)"
                            }
                        }
                    },
                "localname":  "BusinessAcquisitionSharePrice",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "perShareItemType"
                },
            "us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss":  {
                "auth_ref":  [
                    "r251",
                    "r252"
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.",
                            "label":  "Business Acquisition, Pro Forma Net Income (Loss)",
                            "terseLabel":  "Net loss"
                            }
                        }
                    },
                "localname":  "BusinessAcquisitionsProFormaNetIncomeLoss",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/AcquisitionProFormaInformationDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_BusinessAcquisitionsProFormaRevenue":  {
                "auth_ref":  [
                    "r251",
                    "r252"
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.",
                            "label":  "Business Acquisition, Pro Forma Revenue",
                            "terseLabel":  "Total net revenue"
                            }
                        }
                    },
                "localname":  "BusinessAcquisitionsProFormaRevenue",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/AcquisitionProFormaInformationDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_BusinessCombinationAcquisitionRelatedCosts":  {
                "auth_ref":  [
                    "r250"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails":  {
                        "order":  7.0,
                        "parentTag":  "us-gaap_OperatingIncomeLoss",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period.  Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.",
                            "label":  "Business Combination, Acquisition Related Costs",
                            "negatedTerseLabel":  "Acquisition-related costs"
                            }
                        }
                    },
                "localname":  "BusinessCombinationAcquisitionRelatedCosts",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_BusinessCombinationConsiderationTransferred1":  {
                "auth_ref":  [
                    "r259",
                    "r260",
                    "r261"
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.",
                            "label":  "Business Combination, Consideration Transferred",
                            "terseLabel":  "Purchase consideration"
                            }
                        }
                    },
                "localname":  "BusinessCombinationConsiderationTransferred1",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/AcquisitionNarrativeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_BusinessCombinationDisclosureTextBlock":  {
                "auth_ref":  [
                    "r263"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities.  The disclosure may include leverage buyout transactions (as applicable).",
                            "label":  "Business Combination Disclosure [Text Block]",
                            "terseLabel":  "Acquisition"
                            }
                        }
                    },
                "localname":  "BusinessCombinationDisclosureTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/Acquisition"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets":  {
                "auth_ref":  [
                    "r255"
                    ],
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of assets acquired at the acquisition date.",
                            "label":  "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets",
                            "terseLabel":  "Assets acquired"
                            }
                        }
                    },
                "localname":  "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/AcquisitionNarrativeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_BusinessCombinationsAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Business Combinations [Abstract]"
                            }
                        }
                    },
                "localname":  "BusinessCombinationsAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "xbrltype":  "stringItemType"
                },
            "us-gaap_CapitalLeasesFutureMinimumPaymentsDue":  {
                "auth_ref":  [
                    "r312"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of minimum lease payments for capital leases.",
                            "label":  "Capital Leases, Future Minimum Payments Due",
                            "totalLabel":  "Total lease payments"
                            }
                        }
                    },
                "localname":  "CapitalLeasesFutureMinimumPaymentsDue",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_CapitalLeasesFutureMinimumPaymentsDueAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]",
                            "terseLabel":  "Finance leases"
                            }
                        }
                    },
                "localname":  "CapitalLeasesFutureMinimumPaymentsDueAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent":  {
                "auth_ref":  [
                    "r312"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_CapitalLeasesFutureMinimumPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of minimum lease payments for capital leases due in the next fiscal year following the latest fiscal year.  Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
                            "label":  "Capital Leases, Future Minimum Payments Due, Next Twelve Months",
                            "terseLabel":  "2019"
                            }
                        }
                    },
                "localname":  "CapitalLeasesFutureMinimumPaymentsDueCurrent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears":  {
                "auth_ref":  [
                    "r312"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails":  {
                        "order":  6.0,
                        "parentTag":  "us-gaap_CapitalLeasesFutureMinimumPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of minimum lease payments for capital leases due in the fifth fiscal year following the latest fiscal year.  Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
                            "label":  "Capital Leases, Future Minimum Payments Due in Five Years",
                            "terseLabel":  "2023"
                            }
                        }
                    },
                "localname":  "CapitalLeasesFutureMinimumPaymentsDueInFiveYears",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears":  {
                "auth_ref":  [
                    "r312"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails":  {
                        "order":  5.0,
                        "parentTag":  "us-gaap_CapitalLeasesFutureMinimumPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of minimum lease payments for capital leases due in the fourth fiscal year following the latest fiscal year.  Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
                            "label":  "Capital Leases, Future Minimum Payments Due in Four Years",
                            "terseLabel":  "2022"
                            }
                        }
                    },
                "localname":  "CapitalLeasesFutureMinimumPaymentsDueInFourYears",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears":  {
                "auth_ref":  [
                    "r312"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails":  {
                        "order":  4.0,
                        "parentTag":  "us-gaap_CapitalLeasesFutureMinimumPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of minimum lease payments for capital leases due in the third fiscal year following the latest fiscal year.  Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
                            "label":  "Capital Leases, Future Minimum Payments Due in Three Years",
                            "terseLabel":  "2021"
                            }
                        }
                    },
                "localname":  "CapitalLeasesFutureMinimumPaymentsDueInThreeYears",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears":  {
                "auth_ref":  [
                    "r312"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_CapitalLeasesFutureMinimumPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of minimum lease payments for capital leases due in the second fiscal year following the latest fiscal year.  Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
                            "label":  "Capital Leases, Future Minimum Payments Due in Two Years",
                            "terseLabel":  "2020"
                            }
                        }
                    },
                "localname":  "CapitalLeasesFutureMinimumPaymentsDueInTwoYears",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter":  {
                "auth_ref":  [
                    "r312"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_CapitalLeasesFutureMinimumPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of minimum lease payments for capital leases due after the fifth fiscal year following the latest fiscal year.  Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
                            "label":  "Capital Leases, Future Minimum Payments Due Thereafter",
                            "terseLabel":  "Thereafter"
                            }
                        }
                    },
                "localname":  "CapitalLeasesFutureMinimumPaymentsDueThereafter",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments":  {
                "auth_ref":  [
                    "r312"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount necessary to reduce net minimum lease payments to present value for capital leases.",
                            "label":  "Capital Leases, Future Minimum Payments, Interest Included in Payments",
                            "negatedLabel":  "Less:  Interest"
                            }
                        }
                    },
                "localname":  "CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments":  {
                "auth_ref":  [
                    "r312"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Present value of minimum lease payments for capital leases net of executory costs, including amounts paid by the lessee to the lessor for insurance, maintenance and taxes.",
                            "label":  "Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments",
                            "totalLabel":  "Present value of lease liabilities"
                            }
                        }
                    },
                "localname":  "CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_CashAndCashEquivalentsAtCarryingValue":  {
                "auth_ref":  [
                    "r2",
                    "r26",
                    "r89"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_AssetsCurrent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of currency on hand as well as demand deposits with banks or financial institutions.  Includes other kinds of accounts that have the general characteristics of demand deposits.  Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.  Excludes cash and cash equivalents within disposal group and discontinued operation.",
                            "label":  "Cash and Cash Equivalents, at Carrying Value",
                            "periodEndLabel":  "Cash and cash equivalents, end of period",
                            "periodStartLabel":  "Cash and cash equivalents, beginning of period",
                            "terseLabel":  "Cash and cash equivalents"
                            }
                        }
                    },
                "localname":  "CashAndCashEquivalentsAtCarryingValue",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS",
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_CashAndCashEquivalentsFairValueDisclosure":  {
                "auth_ref":  [
                    ],
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Fair value portion of currency on hand as well as demand deposits with banks or financial institutions.  Includes other kinds of accounts that have the general characteristics of demand deposits.  Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
                            "label":  "Cash and Cash Equivalents, Fair Value Disclosure",
                            "terseLabel":  "Cash Equivalents"
                            }
                        }
                    },
                "localname":  "CashAndCashEquivalentsFairValueDisclosure",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/FairValueMeasurementCashEquivalentsandInvestmentsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of increase (decrease) in cash and cash equivalents.  Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions.  Includes other kinds of accounts that have the general characteristics of demand deposits.  Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.  Includes effect from exchange rate changes.",
                            "label":  "Cash and Cash Equivalents, Period Increase (Decrease)",
                            "totalLabel":  "Net decrease in cash and cash equivalents"
                            }
                        }
                    },
                "localname":  "CashAndCashEquivalentsPeriodIncreaseDecrease",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_CashFlowHedgingMember":  {
                "auth_ref":  [
                    "r273"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Hedge of the exposure to variability in the cash flows of a recognized asset or liability, or of a forecasted transaction, that is attributable to a particular risk.",
                            "label":  "Cash Flow Hedging [Member]",
                            "terseLabel":  "Cash flow hedge"
                            }
                        }
                    },
                "localname":  "CashFlowHedgingMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_CommitmentsAndContingencies":  {
                "auth_ref":  [
                    "r40",
                    "r176",
                    "r350",
                    "r364"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_LiabilitiesAndStockholdersEquity",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.",
                            "label":  "Commitments and Contingencies",
                            "terseLabel":  "Commitments and contingencies (Note 12)"
                            }
                        }
                    },
                "localname":  "CommitmentsAndContingencies",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_CommitmentsAndContingenciesDisclosureAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Commitments and Contingencies Disclosure [Abstract]",
                            "terseLabel":  "Commitments and Contingencies Disclosure [Abstract]"
                            }
                        }
                    },
                "localname":  "CommitmentsAndContingenciesDisclosureAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "xbrltype":  "stringItemType"
                },
            "us-gaap_CommitmentsAndContingenciesDisclosureTextBlock":  {
                "auth_ref":  [
                    "r175",
                    "r177"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The entire disclosure for commitments and contingencies.",
                            "label":  "Commitments and Contingencies Disclosure [Text Block]",
                            "terseLabel":  "Commitments and Contingencies"
                            }
                        }
                    },
                "localname":  "CommitmentsAndContingenciesDisclosureTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CommitmentsandContingencies"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_CommonStockMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Stock that is subordinate to all other stock of the issuer.",
                            "label":  "Common Stock [Member]",
                            "terseLabel":  "Common stock (par value)"
                            }
                        }
                    },
                "localname":  "CommonStockMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]",
                            "terseLabel":  "Number of shares"
                            }
                        }
                    },
                "localname":  "CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_CommonStockParOrStatedValuePerShare":  {
                "auth_ref":  [
                    "r17"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Face amount or stated value per share of common stock.",
                            "label":  "Common Stock, Par or Stated Value Per Share",
                            "terseLabel":  "Common stock, par value (in dollars per share)"
                            }
                        }
                    },
                "localname":  "CommonStockParOrStatedValuePerShare",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUnauditedParenthetical"
                    ],
                "xbrltype":  "perShareItemType"
                },
            "us-gaap_CommonStockSharesAuthorized":  {
                "auth_ref":  [
                    "r17"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The maximum number of common shares permitted to be issued by an entity's charter and bylaws.",
                            "label":  "Common Stock, Shares Authorized",
                            "terseLabel":  "Common stock, shares authorized (in shares)"
                            }
                        }
                    },
                "localname":  "CommonStockSharesAuthorized",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUnauditedParenthetical"
                    ],
                "xbrltype":  "sharesItemType"
                },
            "us-gaap_CommonStockSharesIssued":  {
                "auth_ref":  [
                    "r17"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury).  These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized.  Shares issued include shares outstanding and shares held in the treasury.",
                            "label":  "Common Stock, Shares, Issued",
                            "terseLabel":  "Common stock, shares issued (in shares)"
                            }
                        }
                    },
                "localname":  "CommonStockSharesIssued",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUnauditedParenthetical"
                    ],
                "xbrltype":  "sharesItemType"
                },
            "us-gaap_CommonStockSharesOutstanding":  {
                "auth_ref":  [
                    "r17",
                    "r186"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Number of shares of common stock outstanding.  Common stock represent the ownership interest in a corporation.",
                            "label":  "Common Stock, Shares, Outstanding",
                            "periodEndLabel":  "Balance, end of year (in shares)",
                            "periodStartLabel":  "Balance, beginning of year (in shares)",
                            "terseLabel":  "Common stock, shares outstanding (in shares)"
                            }
                        }
                    },
                "localname":  "CommonStockSharesOutstanding",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUnauditedParenthetical",
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
                    ],
                "xbrltype":  "sharesItemType"
                },
            "us-gaap_CommonStockValue":  {
                "auth_ref":  [
                    "r17"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_StockholdersEquity",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer).  This item includes treasury stock repurchased by the entity.  Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.",
                            "label":  "Common Stock, Value, Issued",
                            "terseLabel":  "Common stock, $0.0001 par value; 100,000 shares authorized; 34,382 and 33,673 shares issued and outstanding on June 30, 2019 and December 31, 2018, respectively"
                            }
                        }
                    },
                "localname":  "CommonStockValue",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_ComprehensiveIncomeNetOfTax":  {
                "auth_ref":  [
                    "r59",
                    "r61",
                    "r62"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity.  Excludes changes in equity resulting from investments by owners and distributions to owners.",
                            "label":  "Comprehensive Income (Loss), Net of Tax, Attributable to Parent",
                            "totalLabel":  "Comprehensive loss"
                            }
                        }
                    },
                "localname":  "ComprehensiveIncomeNetOfTax",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_ConstructionInProgressGross":  {
                "auth_ref":  [
                    "r153"
                    ],
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of structure or a modification to a structure under construction.  Includes recently completed structures or modifications to structures that have not been placed into service.",
                            "label":  "Construction in Progress, Gross",
                            "terseLabel":  "Assets in construction"
                            }
                        }
                    },
                "localname":  "ConstructionInProgressGross",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPropertyandEquipmentNetDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_ContractTerminationMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Termination of a contract associated with exit from or disposal of business activities or restructurings pursuant to a plan.",
                            "label":  "Contract Termination [Member]",
                            "terseLabel":  "Lease termination"
                            }
                        }
                    },
                "localname":  "ContractTerminationMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/RestructuringNarrativeDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_ContractWithCustomerLiabilityCurrent":  {
                "auth_ref":  [
                    "r193",
                    "r194",
                    "r198"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  5.0,
                        "parentTag":  "us-gaap_LiabilitiesCurrent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.",
                            "label":  "Contract with Customer, Liability, Current",
                            "terseLabel":  "Deferred revenue, current portion"
                            }
                        }
                    },
                "localname":  "ContractWithCustomerLiabilityCurrent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_ContractWithCustomerLiabilityRevenueRecognized":  {
                "auth_ref":  [
                    "r199"
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.",
                            "label":  "Contract with Customer, Liability, Revenue Recognized",
                            "terseLabel":  "Revenues recognized that were included in deferred revenue"
                            }
                        }
                    },
                "localname":  "ContractWithCustomerLiabilityRevenueRecognized",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/RevenuesDeferredRevenuesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_CorporateDebtSecuritiesMember":  {
                "auth_ref":  [
                    "r204",
                    "r206"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Debt securities issued by domestic or foreign corporate business, banks and other entities with a promise of repayment.",
                            "label":  "Corporate Debt Securities [Member]",
                            "terseLabel":  "Corporate debt securities"
                            }
                        }
                    },
                "localname":  "CorporateDebtSecuritiesMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/FairValueMeasurementCashEquivalentsandInvestmentsDetails",
                    "http://www.shutterfly.com/role/InvestmentsScheduleofEstimatedFairValueDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_CostOfGoodsAndServicesSold":  {
                "auth_ref":  [
                    "r68"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_GrossProfit",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period.  This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.",
                            "label":  "Cost of Goods and Services Sold",
                            "terseLabel":  "Cost of net revenue",
                            "verboseLabel":  "Cost of net revenue"
                            }
                        }
                    },
                "localname":  "CostOfGoodsAndServicesSold",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS",
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails",
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_CostOfSalesMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Primary financial statement caption encompassing cost of sales.",
                            "label":  "Cost of Sales [Member]",
                            "terseLabel":  "Cost of net revenue"
                            }
                        }
                    },
                "localname":  "CostOfSalesMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails",
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationExpenseDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_CreditFacilityAxis":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by type of credit facility.  Credit facilities provide capital to borrowers without the need to structure a loan for each borrowing.",
                            "label":  "Credit Facility [Axis]",
                            "terseLabel":  "Credit Facility [Axis]"
                            }
                        }
                    },
                "localname":  "CreditFacilityAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtNarrativeDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_CreditFacilityDomain":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Type of credit facility.  Credit facilities provide capital to borrowers without the need to structure a loan for each borrowing.",
                            "label":  "Credit Facility [Domain]",
                            "terseLabel":  "Credit Facility [Domain]"
                            }
                        }
                    },
                "localname":  "CreditFacilityDomain",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtNarrativeDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccumulatedOtherComprehensiveLossIncomeDetails":  {
                        "order":  4.0,
                        "parentTag":  "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.",
                            "label":  "Cumulative Effect of New Accounting Principle in Period of Adoption",
                            "terseLabel":  "Impact of adoption of new accounting standards",
                            "verboseLabel":  "Impact of adoption of new accounting standards"
                            }
                        }
                    },
                "localname":  "CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccumulatedOtherComprehensiveLossIncomeDetails",
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY",
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_CustomerRelationshipsMember":  {
                "auth_ref":  [
                    "r257"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Customer relationship that exists between an entity and its customer, for example, but not limited to, tenant relationships.",
                            "label":  "Customer Relationships [Member]",
                            "terseLabel":  "Customer relationships"
                            }
                        }
                    },
                "localname":  "CustomerRelationshipsMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_DebtDisclosureAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Debt Disclosure [Abstract]"
                            }
                        }
                    },
                "localname":  "DebtDisclosureAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "xbrltype":  "stringItemType"
                },
            "us-gaap_DebtInstrumentAxis":  {
                "auth_ref":  [
                    "r11",
                    "r13",
                    "r14",
                    "r342",
                    "r344",
                    "r356"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by type of debt instrument, including, but not limited to, draws against credit facilities.",
                            "label":  "Debt Instrument [Axis]",
                            "terseLabel":  "Debt Instrument [Axis]"
                            }
                        }
                    },
                "localname":  "DebtInstrumentAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtNarrativeDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofEffectiveInterestRatesDetails",
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_DebtInstrumentBasisSpreadOnVariableRate1":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Percentage points added to the reference rate to compute the variable rate on the debt instrument.",
                            "label":  "Debt Instrument, Basis Spread on Variable Rate",
                            "terseLabel":  "Basis spread"
                            }
                        }
                    },
                "localname":  "DebtInstrumentBasisSpreadOnVariableRate1",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails"
                    ],
                "xbrltype":  "percentItemType"
                },
            "us-gaap_DebtInstrumentCarryingAmount":  {
                "auth_ref":  [
                    "r14",
                    "r180",
                    "r344",
                    "r356"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails_1":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_LongTermDebt",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt.  Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.",
                            "label":  "Long-term Debt, Gross",
                            "terseLabel":  "Total principal amount"
                            }
                        }
                    },
                "localname":  "DebtInstrumentCarryingAmount",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_DebtInstrumentInterestRateEffectivePercentage":  {
                "auth_ref":  [
                    "r37",
                    "r183",
                    "r307"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.",
                            "label":  "Debt Instrument, Interest Rate, Effective Percentage",
                            "terseLabel":  "Fixed rate on Term Loan"
                            }
                        }
                    },
                "localname":  "DebtInstrumentInterestRateEffectivePercentage",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsDetails"
                    ],
                "xbrltype":  "percentItemType"
                },
            "us-gaap_DebtInstrumentInterestRateStatedPercentage":  {
                "auth_ref":  [
                    "r37"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Contractual interest rate for funds borrowed, under the debt agreement.",
                            "label":  "Debt Instrument, Interest Rate, Stated Percentage",
                            "terseLabel":  "Contractual interest rate"
                            }
                        }
                    },
                "localname":  "DebtInstrumentInterestRateStatedPercentage",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofInterestExpenseDetails"
                    ],
                "xbrltype":  "percentItemType"
                },
            "us-gaap_DebtInstrumentLineItems":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Line items represent financial concepts included in a table.  These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
                            "label":  "Debt Instrument [Line Items]",
                            "terseLabel":  "Debt Instrument [Line Items]"
                            }
                        }
                    },
                "localname":  "DebtInstrumentLineItems",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtNarrativeDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofEffectiveInterestRatesDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofInterestExpenseDetails",
                    "http://www.shutterfly.com/role/DebtSummaryofMaturitiesofAssumedDebtDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_DebtInstrumentNameDomain":  {
                "auth_ref":  [
                    "r38"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The name for the particular debt instrument or borrowing that distinguishes it from other debt instruments or borrowings, including draws against credit facilities.",
                            "label":  "Debt Instrument, Name [Domain]",
                            "terseLabel":  "Debt Instrument, Name [Domain]"
                            }
                        }
                    },
                "localname":  "DebtInstrumentNameDomain",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtNarrativeDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofEffectiveInterestRatesDetails",
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_DebtInstrumentTable":  {
                "auth_ref":  [
                    "r38",
                    "r92",
                    "r187",
                    "r188",
                    "r189",
                    "r190",
                    "r306",
                    "r307",
                    "r309",
                    "r355"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "A table or schedule providing information pertaining to long-term debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation.  These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the company, if longer.",
                            "label":  "Schedule of Long-term Debt Instruments [Table]",
                            "terseLabel":  "Schedule of Long-term Debt Instruments [Table]"
                            }
                        }
                    },
                "localname":  "DebtInstrumentTable",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtNarrativeDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofEffectiveInterestRatesDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofInterestExpenseDetails",
                    "http://www.shutterfly.com/role/DebtSummaryofMaturitiesofAssumedDebtDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet":  {
                "auth_ref":  [
                    "r181",
                    "r308"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails_1":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_LongTermDebt",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of unamortized debt discount (premium) and debt issuance costs.",
                            "label":  "Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net",
                            "negatedLabel":  "Less: unamortized issuance costs"
                            }
                        }
                    },
                "localname":  "DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_DebtSecuritiesAvailableForSaleTable":  {
                "auth_ref":  [
                    "r134"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Disclosure of information about investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
                            "label":  "Debt Securities, Available-for-sale [Table]",
                            "terseLabel":  "Debt Securities, Available-for-sale [Table]"
                            }
                        }
                    },
                "localname":  "DebtSecuritiesAvailableForSaleTable",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/InvestmentsScheduleofEstimatedFairValueDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_DebtSecuritiesAvailableForSaleTableTextBlock":  {
                "auth_ref":  [
                    "r134"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
                            "label":  "Debt Securities, Available-for-sale [Table Text Block]",
                            "terseLabel":  "Fair value of short and long-term investments classified as available for sale"
                            }
                        }
                    },
                "localname":  "DebtSecuritiesAvailableForSaleTableTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/InvestmentsTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock":  {
                "auth_ref":  [
                    "r30"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of the amounts paid in advance for capitalized costs that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer; the aggregate carrying amount of current assets, not separately presented elsewhere in the balance sheet; and other deferred costs.",
                            "label":  "Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]",
                            "terseLabel":  "Schedule of prepaid expenses and other current assets"
                            }
                        }
                    },
                "localname":  "DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_DeferredIncomeTaxExpenseBenefit":  {
                "auth_ref":  [
                    "r87",
                    "r91",
                    "r246",
                    "r248"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  7.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInOperatingActivities",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.",
                            "label":  "Deferred Income Tax Expense (Benefit)",
                            "verboseLabel":  "Deferred income taxes"
                            }
                        }
                    },
                "localname":  "DeferredIncomeTaxExpenseBenefit",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_DeferredTaxLiabilities":  {
                "auth_ref":  [
                    "r244",
                    "r245"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsOtherLiabilitiesDetails":  {
                        "order":  4.0,
                        "parentTag":  "us-gaap_OtherLiabilitiesNoncurrent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.",
                            "label":  "Deferred Tax Liabilities, Net",
                            "terseLabel":  "Deferred tax liability"
                            }
                        }
                    },
                "localname":  "DeferredTaxLiabilities",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsOtherLiabilitiesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_DepreciationDepletionAndAmortization":  {
                "auth_ref":  [
                    "r87",
                    "r112"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInOperatingActivities",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.",
                            "label":  "Depreciation, Depletion and Amortization",
                            "terseLabel":  "Depreciation and amortization expense",
                            "verboseLabel":  "Depreciation and amortization"
                            }
                        }
                    },
                "localname":  "DepreciationDepletionAndAmortization",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPropertyandEquipmentNetDetails",
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_DerivativeAssetNotionalAmount":  {
                "auth_ref":  [
                    "r269",
                    "r270",
                    "r272"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Nominal or face amount used to calculate payments on the derivative asset.",
                            "label":  "Derivative Asset, Notional Amount",
                            "terseLabel":  "Aggregate notional amount"
                            }
                        }
                    },
                "localname":  "DerivativeAssetNotionalAmount",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_DerivativeAssets":  {
                "auth_ref":  [
                    "r44",
                    "r45",
                    "r301"
                    ],
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.  Includes assets not subject to a master netting arrangement and not elected to be offset.",
                            "label":  "Derivative Asset",
                            "terseLabel":  "Derivative assets"
                            }
                        }
                    },
                "localname":  "DerivativeAssets",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsDetails",
                    "http://www.shutterfly.com/role/FairValueMeasurementDerivativeLiabilitiesAssetsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_DerivativeContractTypeDomain":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Financial instrument or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.",
                            "label":  "Derivative Contract [Domain]",
                            "terseLabel":  "Derivative Contract [Domain]"
                            }
                        }
                    },
                "localname":  "DerivativeContractTypeDomain",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_DerivativeInstrumentRiskAxis":  {
                "auth_ref":  [
                    "r277",
                    "r279",
                    "r283",
                    "r285"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by type of derivative contract.",
                            "label":  "Derivative Instrument [Axis]",
                            "terseLabel":  "Derivative Instrument [Axis]"
                            }
                        }
                    },
                "localname":  "DerivativeInstrumentRiskAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Derivative Instruments and Hedging Activities Disclosure [Abstract]"
                            }
                        }
                    },
                "localname":  "DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "xbrltype":  "stringItemType"
                },
            "us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock":  {
                "auth_ref":  [
                    "r291"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts.",
                            "label":  "Derivative Instruments and Hedging Activities Disclosure [Text Block]",
                            "terseLabel":  "Derivative Financial Instruments"
                            }
                        }
                    },
                "localname":  "DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DerivativeFinancialInstruments"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis":  {
                "auth_ref":  [
                    "r274",
                    "r277",
                    "r283"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by type of hedging relationship.",
                            "label":  "Hedging Relationship [Axis]",
                            "terseLabel":  "Hedging Relationship [Axis]"
                            }
                        }
                    },
                "localname":  "DerivativeInstrumentsGainLossByHedgingRelationshipAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_DerivativeLiabilities":  {
                "auth_ref":  [
                    "r44",
                    "r45",
                    "r301"
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.  Includes liabilities not subject to a master netting arrangement and not elected to be offset.",
                            "label":  "Derivative Liability",
                            "terseLabel":  "Derivative liability"
                            }
                        }
                    },
                "localname":  "DerivativeLiabilities",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsDetails",
                    "http://www.shutterfly.com/role/FairValueMeasurementDerivativeLiabilitiesAssetsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_DerivativeLineItems":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Line items represent financial concepts included in a table.  These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
                            "label":  "Derivative [Line Items]",
                            "terseLabel":  "Derivative [Line Items]"
                            }
                        }
                    },
                "localname":  "DerivativeLineItems",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_DerivativeTable":  {
                "auth_ref":  [
                    "r94",
                    "r268",
                    "r271",
                    "r272",
                    "r274",
                    "r275",
                    "r281",
                    "r283",
                    "r287",
                    "r288",
                    "r290"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Schedule that describes and identifies a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments.  May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.",
                            "label":  "Derivative [Table]",
                            "terseLabel":  "Derivative [Table]"
                            }
                        }
                    },
                "localname":  "DerivativeTable",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_DesignatedAsHedgingInstrumentMember":  {
                "auth_ref":  [
                    "r274"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Derivative instrument designated as hedging instrument under Generally Accepted Accounting Principles (GAAP).",
                            "label":  "Designated as Hedging Instrument [Member]",
                            "terseLabel":  "Designated as Hedging Instrument"
                            }
                        }
                    },
                "localname":  "DesignatedAsHedgingInstrumentMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_DevelopedTechnologyRightsMember":  {
                "auth_ref":  [
                    "r258"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Rights to developed technology, which can include the right to develop, use, market, sell, or offer for sale products, compounds, or intellectual property.",
                            "label":  "Developed Technology Rights [Member]",
                            "verboseLabel":  "Purchased technology"
                            }
                        }
                    },
                "localname":  "DevelopedTechnologyRightsMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_DisaggregationOfRevenueLineItems":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Line items represent financial concepts included in a table.  These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
                            "label":  "Disaggregation of Revenue [Line Items]",
                            "terseLabel":  "Disaggregation of Revenue [Line Items]"
                            }
                        }
                    },
                "localname":  "DisaggregationOfRevenueLineItems",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/RevenuesConsumerRevenuesbyBrandDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_DisaggregationOfRevenueTable":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Disclosure of information about disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.",
                            "label":  "Disaggregation of Revenue [Table]",
                            "terseLabel":  "Disaggregation of Revenue [Table]"
                            }
                        }
                    },
                "localname":  "DisaggregationOfRevenueTable",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/RevenuesConsumerRevenuesbyBrandDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_DisaggregationOfRevenueTableTextBlock":  {
                "auth_ref":  [
                    "r197"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.",
                            "label":  "Disaggregation of Revenue [Table Text Block]",
                            "terseLabel":  "Disaggregation of Revenue"
                            }
                        }
                    },
                "localname":  "DisaggregationOfRevenueTableTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/RevenuesTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock":  {
                "auth_ref":  [
                    "r192",
                    "r243"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.",
                            "label":  "Disclosure of Compensation Related Costs, Share-based Payments [Text Block]",
                            "verboseLabel":  "Stock-Based Compensation"
                            }
                        }
                    },
                "localname":  "DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensation"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Disclosure of Compensation Related Costs, Share-based Payments [Abstract]",
                            "terseLabel":  "Disclosure of Compensation Related Costs, Share-based Payments [Abstract]"
                            }
                        }
                    },
                "localname":  "DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "xbrltype":  "stringItemType"
                },
            "us-gaap_EarningsPerShareAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Earnings Per Share [Abstract]"
                            }
                        }
                    },
                "localname":  "EarningsPerShareAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "xbrltype":  "stringItemType"
                },
            "us-gaap_EarningsPerShareBasicAndDiluted":  {
                "auth_ref":  [
                    "r103"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements.  Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period.  Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.",
                            "label":  "Earnings Per Share, Basic and Diluted",
                            "terseLabel":  "Net loss per share - basic and diluted (in dollars per share)"
                            }
                        }
                    },
                "localname":  "EarningsPerShareBasicAndDiluted",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS",
                    "http://www.shutterfly.com/role/NetLossPerShareDetails"
                    ],
                "xbrltype":  "perShareItemType"
                },
            "us-gaap_EarningsPerSharePolicyTextBlock":  {
                "auth_ref":  [
                    "r90",
                    "r104",
                    "r105",
                    "r106"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security.  Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements.",
                            "label":  "Earnings Per Share, Policy [Policy Text Block]",
                            "terseLabel":  "Net Loss Per Share"
                            }
                        }
                    },
                "localname":  "EarningsPerSharePolicyTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesPolicies"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_EarningsPerShareTextBlock":  {
                "auth_ref":  [
                    "r107"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The entire disclosure for earnings per share.",
                            "label":  "Earnings Per Share [Text Block]",
                            "verboseLabel":  "Net Loss Per Share"
                            }
                        }
                    },
                "localname":  "EarningsPerShareTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/NetLossPerShare"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents":  {
                "auth_ref":  [
                    "r302"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  4.0,
                        "parentTag":  "us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of increase (decrease) from the effect of exchange rate changes on cash and cash equivalent balances held in foreign currencies.",
                            "label":  "Effect of Exchange Rate on Cash and Cash Equivalents",
                            "terseLabel":  "Effect of exchange rate changes on cash and cash equivalents"
                            }
                        }
                    },
                "localname":  "EffectOfExchangeRateOnCashAndCashEquivalents",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_EmployeeRelatedLiabilitiesCurrent":  {
                "auth_ref":  [
                    "r35"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccruedLiabilitiesDetails":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_AccruedLiabilitiesCurrent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits.  Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
                            "label":  "Employee-related Liabilities, Current",
                            "terseLabel":  "Accrued compensation"
                            }
                        }
                    },
                "localname":  "EmployeeRelatedLiabilitiesCurrent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccruedLiabilitiesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Line items represent financial concepts included in a table.  These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]",
                            "verboseLabel":  "Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]"
                            }
                        }
                    },
                "localname":  "EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationExpenseDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized":  {
                "auth_ref":  [
                    "r236"
                    ],
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Unrecognized cost of unvested share-based compensation awards.",
                            "label":  "Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized",
                            "terseLabel":  "Unrecognized compensation expense"
                            }
                        }
                    },
                "localname":  "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1":  {
                "auth_ref":  [
                    "r236"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
                            "label":  "Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition",
                            "terseLabel":  "Weighted average period of unrecognized compensation expense (in years)"
                            }
                        }
                    },
                "localname":  "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationDetails"
                    ],
                "xbrltype":  "durationItemType"
                },
            "us-gaap_EmployeeSeveranceMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Termination of an employee associated with exit from or disposal of business activities or restructurings pursuant to a plan.",
                            "label":  "Employee Severance [Member]",
                            "terseLabel":  "Employee costs",
                            "verboseLabel":  "Employee-related costs"
                            }
                        }
                    },
                "localname":  "EmployeeSeveranceMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/RestructuringNarrativeDetails",
                    "http://www.shutterfly.com/role/RestructuringRestructuringReserveActivitiesDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_EmployeeStockOptionMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "An arrangement whereby an employee is entitled to receive in the future, subject to vesting and other restrictions, a number of shares in the entity at a specified price, as defined in the agreement.  Although there are variations, normally, after vesting, when an option is exercised, the employee-holder pays the strike value in cash to the issuing employer-entity and receives equity shares.  The equity shares can be sold into the market for cash at the current market price without restriction.  Options may be used to attract, retain and incentivize employees, in addition to their regular salary and other benefits.",
                            "label":  "Employee Stock Option [Member]",
                            "terseLabel":  "Employee Stock Option"
                            }
                        }
                    },
                "localname":  "EmployeeStockOptionMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationDetails",
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_EquityComponentDomain":  {
                "auth_ref":  [
                    "r186"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Components of equity are the parts of the total Equity balance including that which is allocated to common, preferred, treasury stock, retained earnings, etc.",
                            "label":  "Equity Component [Domain]",
                            "terseLabel":  "Equity Component [Domain]"
                            }
                        }
                    },
                "localname":  "EquityComponentDomain",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY",
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementByRestatementPeriodAndAmountAxis":  {
                "auth_ref":  [
                    "r99",
                    "r100",
                    "r101"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by type of error correction.",
                            "label":  "Adjustments for Error Corrections [Axis]",
                            "terseLabel":  "Adjustments for Error Corrections [Axis]"
                            }
                        }
                    },
                "localname":  "ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementByRestatementPeriodAndAmountAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails",
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_EstimateOfFairValueFairValueDisclosureMember":  {
                "auth_ref":  [
                    "r301"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Measured as an estimate of fair value.",
                            "label":  "Estimate of Fair Value Measurement [Member]",
                            "terseLabel":  "Estimate of Fair Value Measurement"
                            }
                        }
                    },
                "localname":  "EstimateOfFairValueFairValueDisclosureMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/FairValueMeasurementBorrowingsDetails",
                    "http://www.shutterfly.com/role/FairValueMeasurementDerivativeLiabilitiesAssetsDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Line items represent financial concepts included in a table.  These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
                            "label":  "Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]",
                            "terseLabel":  "Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]"
                            }
                        }
                    },
                "localname":  "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/FairValueMeasurementBorrowingsDetails",
                    "http://www.shutterfly.com/role/FairValueMeasurementCashEquivalentsandInvestmentsDetails",
                    "http://www.shutterfly.com/role/FairValueMeasurementDerivativeLiabilitiesAssetsDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable":  {
                "auth_ref":  [
                    "r292",
                    "r293",
                    "r294",
                    "r295",
                    "r296",
                    "r297"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Disclosure of information about financial instruments measured at fair value, including those classified in shareholders' equity measured on a recurring or nonrecurring basis.  Disclosures include, but are not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2.  Nonrecurring fair value measurements are those that are required or permitted in the statement of financial position in particular circumstances.",
                            "label":  "Fair Value Measurements, Recurring and Nonrecurring [Table]",
                            "terseLabel":  "Fair Value Measurements, Recurring and Nonrecurring [Table]"
                            }
                        }
                    },
                "localname":  "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/FairValueMeasurementBorrowingsDetails",
                    "http://www.shutterfly.com/role/FairValueMeasurementCashEquivalentsandInvestmentsDetails",
                    "http://www.shutterfly.com/role/FairValueMeasurementDerivativeLiabilitiesAssetsDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock":  {
                "auth_ref":  [
                    "r292",
                    "r293",
                    "r294"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis.  The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).",
                            "label":  "Fair Value, Assets Measured on Recurring Basis [Table Text Block]",
                            "terseLabel":  "Fair value, assets measured on recurring basis"
                            }
                        }
                    },
                "localname":  "FairValueAssetsMeasuredOnRecurringBasisTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/FairValueMeasurementTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_FairValueByFairValueHierarchyLevelAxis":  {
                "auth_ref":  [
                    "r204",
                    "r205",
                    "r206",
                    "r294",
                    "r335"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by level within fair value hierarchy and fair value measured at net asset value per share as practical expedient.",
                            "label":  "Fair Value Hierarchy and NAV [Axis]",
                            "terseLabel":  "Fair Value Hierarchy and NAV [Axis]"
                            }
                        }
                    },
                "localname":  "FairValueByFairValueHierarchyLevelAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/FairValueMeasurementBorrowingsDetails",
                    "http://www.shutterfly.com/role/FairValueMeasurementCashEquivalentsandInvestmentsDetails",
                    "http://www.shutterfly.com/role/FairValueMeasurementDerivativeLiabilitiesAssetsDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_FairValueByMeasurementBasisAxis":  {
                "auth_ref":  [
                    "r293",
                    "r298"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by measurement basis.",
                            "label":  "Measurement Basis [Axis]",
                            "terseLabel":  "Measurement Basis [Axis]"
                            }
                        }
                    },
                "localname":  "FairValueByMeasurementBasisAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/FairValueMeasurementBorrowingsDetails",
                    "http://www.shutterfly.com/role/FairValueMeasurementDerivativeLiabilitiesAssetsDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_FairValueDisclosureItemAmountsDomain":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Measurement basis, for example, but not limited to, reported value, fair value, portion at fair value, portion at other than fair value.",
                            "label":  "Fair Value Measurement [Domain]",
                            "terseLabel":  "Fair Value Measurement [Domain]"
                            }
                        }
                    },
                "localname":  "FairValueDisclosureItemAmountsDomain",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/FairValueMeasurementBorrowingsDetails",
                    "http://www.shutterfly.com/role/FairValueMeasurementDerivativeLiabilitiesAssetsDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_FairValueDisclosuresAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Fair Value Disclosures [Abstract]"
                            }
                        }
                    },
                "localname":  "FairValueDisclosuresAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "xbrltype":  "stringItemType"
                },
            "us-gaap_FairValueDisclosuresTextBlock":  {
                "auth_ref":  [
                    "r299"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities.  Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.",
                            "label":  "Fair Value Disclosures [Text Block]",
                            "terseLabel":  "Fair Value Measurement"
                            }
                        }
                    },
                "localname":  "FairValueDisclosuresTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/FairValueMeasurement"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_FairValueInputsLevel1Member":  {
                "auth_ref":  [
                    "r204",
                    "r205",
                    "r206",
                    "r294",
                    "r336"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Quoted prices in active markets for identical assets or liabilities that the reporting entity can access at the measurement date.",
                            "label":  "Fair Value, Inputs, Level 1 [Member]",
                            "terseLabel":  "Level 1 Securities"
                            }
                        }
                    },
                "localname":  "FairValueInputsLevel1Member",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/FairValueMeasurementCashEquivalentsandInvestmentsDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_FairValueInputsLevel2Member":  {
                "auth_ref":  [
                    "r204",
                    "r205",
                    "r206",
                    "r294",
                    "r337"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Inputs other than quoted prices included within level 1 that are observable for an asset or liability, either directly or indirectly, including, but not limited to, quoted prices for similar assets or liabilities in active markets, or quoted prices for identical or similar assets or liabilities in inactive markets.",
                            "label":  "Fair Value, Inputs, Level 2 [Member]",
                            "terseLabel":  "Fair Value, Inputs, Level 2",
                            "verboseLabel":  "Level 2 Securities"
                            }
                        }
                    },
                "localname":  "FairValueInputsLevel2Member",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/FairValueMeasurementBorrowingsDetails",
                    "http://www.shutterfly.com/role/FairValueMeasurementCashEquivalentsandInvestmentsDetails",
                    "http://www.shutterfly.com/role/FairValueMeasurementDerivativeLiabilitiesAssetsDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisTextBlock":  {
                "auth_ref":  [
                    "r292",
                    "r293",
                    "r294"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis.  The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).  Where the quoted price in an active market for the identical liability is not available, the Level 1 input is the quoted price of an identical liability when traded as an asset.",
                            "label":  "Fair Value, Liabilities Measured on Recurring Basis [Table Text Block]",
                            "terseLabel":  "Fair value, liabilities measured on a recurring basis"
                            }
                        }
                    },
                "localname":  "FairValueLiabilitiesMeasuredOnRecurringBasisTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/FairValueMeasurementTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_FairValueMeasurementsFairValueHierarchyDomain":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Categories used to prioritize the inputs to valuation techniques to measure fair value.",
                            "label":  "Fair Value Hierarchy and NAV [Domain]",
                            "terseLabel":  "Fair Value Hierarchy and NAV [Domain]"
                            }
                        }
                    },
                "localname":  "FairValueMeasurementsFairValueHierarchyDomain",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/FairValueMeasurementBorrowingsDetails",
                    "http://www.shutterfly.com/role/FairValueMeasurementCashEquivalentsandInvestmentsDetails",
                    "http://www.shutterfly.com/role/FairValueMeasurementDerivativeLiabilitiesAssetsDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_FinanceLeaseCostAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Finance Lease, Cost [Abstract]",
                            "terseLabel":  "Finance Lease, Cost [Abstract]"
                            }
                        }
                    },
                "localname":  "FinanceLeaseCostAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesComponentsofLeaseCostDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_FinanceLeaseInterestExpense":  {
                "auth_ref":  [
                    "r316",
                    "r323",
                    "r333"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesComponentsofLeaseCostDetails":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_LeaseCost",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of interest expense on finance lease liability.",
                            "label":  "Finance Lease, Interest Expense",
                            "terseLabel":  "Interest on lease liabilities"
                            }
                        }
                    },
                "localname":  "FinanceLeaseInterestExpense",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesComponentsofLeaseCostDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_FinanceLeaseInterestPaymentOnLiability":  {
                "auth_ref":  [
                    "r318",
                    "r327"
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of interest paid on finance lease liability.",
                            "label":  "Finance Lease, Interest Payment on Liability",
                            "terseLabel":  "Operating cash flows from finance leases"
                            }
                        }
                    },
                "localname":  "FinanceLeaseInterestPaymentOnLiability",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesSupplementalCashFlowInformationDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Finance Lease Liabilities, Payments, Due [Abstract]",
                            "terseLabel":  "Finance Lease Liabilities, Payments, Due [Abstract]"
                            }
                        }
                    },
                "localname":  "FinanceLeaseLiabilitiesPaymentsDueAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_FinanceLeaseLiability":  {
                "auth_ref":  [
                    "r315",
                    "r332"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  2.0,
                        "parentTag":  "sfly_LeaseLiability",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Present value of lessee's discounted obligation for lease payments from finance lease.",
                            "label":  "Finance Lease, Liability",
                            "terseLabel":  "Present value of lease liabilities"
                            }
                        }
                    },
                "localname":  "FinanceLeaseLiability",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_FinanceLeaseLiabilityCurrent":  {
                "auth_ref":  [
                    "r315"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccruedLiabilitiesDetails":  {
                        "order":  4.0,
                        "parentTag":  "us-gaap_AccruedLiabilitiesCurrent",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/LeasesROUAssetsandLeaseLiabilitiesDetails":  {
                        "order":  2.0,
                        "parentTag":  "sfly_LeaseLiability",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Present value of lessee's discounted obligation for lease payments from finance lease, classified as current.",
                            "label":  "Finance Lease, Liability, Current",
                            "terseLabel":  "Finance lease liabilities, current portion"
                            }
                        }
                    },
                "localname":  "FinanceLeaseLiabilityCurrent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccruedLiabilitiesDetails",
                    "http://www.shutterfly.com/role/LeasesNarrativeDetails",
                    "http://www.shutterfly.com/role/LeasesROUAssetsandLeaseLiabilitiesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock":  {
                "auth_ref":  [
                    "r332"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of undiscounted cash flows of finance lease liability.  Includes, but is not limited to, reconciliation of undiscounted cash flows to finance lease liability recognized in statement of financial position.",
                            "label":  "Finance Lease, Liability, Maturity [Table Text Block]",
                            "terseLabel":  "Future Minimum Payments of Finance Leases"
                            }
                        }
                    },
                "localname":  "FinanceLeaseLiabilityMaturityTableTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_FinanceLeaseLiabilityNoncurrent":  {
                "auth_ref":  [
                    "r315"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsOtherLiabilitiesDetails":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_OtherLiabilitiesNoncurrent",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/LeasesROUAssetsandLeaseLiabilitiesDetails":  {
                        "order":  4.0,
                        "parentTag":  "sfly_LeaseLiability",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Present value of lessee's discounted obligation for lease payments from finance lease, classified as noncurrent.",
                            "label":  "Finance Lease, Liability, Noncurrent",
                            "verboseLabel":  "Finance lease liabilities, non-current portion"
                            }
                        }
                    },
                "localname":  "FinanceLeaseLiabilityNoncurrent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsOtherLiabilitiesDetails",
                    "http://www.shutterfly.com/role/LeasesROUAssetsandLeaseLiabilitiesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_FinanceLeaseLiabilityPaymentsDue":  {
                "auth_ref":  [
                    "r332"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  2.0,
                        "parentTag":  "sfly_LeaseLiabilityPaymentsDue",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails_1":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of lessee's undiscounted obligation for lease payments for finance lease.",
                            "label":  "Finance Lease, Liability, Payments, Due",
                            "totalLabel":  "Total lease payments"
                            }
                        }
                    },
                "localname":  "FinanceLeaseLiabilityPaymentsDue",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive":  {
                "auth_ref":  [
                    "r332"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  2.0,
                        "parentTag":  "sfly_LeaseLiabilityPaymentsDueAfterYearFive",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails_1":  {
                        "order":  6.0,
                        "parentTag":  "us-gaap_FinanceLeaseLiabilityPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of lessee's undiscounted obligation for lease payments for finance lease, due after fifth fiscal year following latest fiscal year.",
                            "label":  "Finance Lease, Liability, Payments, Due after Year Five",
                            "terseLabel":  "Thereafter"
                            }
                        }
                    },
                "localname":  "FinanceLeaseLiabilityPaymentsDueAfterYearFive",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive":  {
                "auth_ref":  [
                    "r332"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  2.0,
                        "parentTag":  "sfly_LeaseLiabilityPaymentsDueYearFive",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails_1":  {
                        "order":  5.0,
                        "parentTag":  "us-gaap_FinanceLeaseLiabilityPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of lessee's undiscounted obligation for lease payments for finance lease, due in fifth fiscal year following latest fiscal year.",
                            "label":  "Finance Lease, Liability, Payments, Due Year Five",
                            "terseLabel":  "2023"
                            }
                        }
                    },
                "localname":  "FinanceLeaseLiabilityPaymentsDueYearFive",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour":  {
                "auth_ref":  [
                    "r332"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  2.0,
                        "parentTag":  "sfly_LeaseLiabilityPaymentsDueYearFour",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails_1":  {
                        "order":  4.0,
                        "parentTag":  "us-gaap_FinanceLeaseLiabilityPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of lessee's undiscounted obligation for lease payments for finance lease, due in fourth fiscal year following latest fiscal year.",
                            "label":  "Finance Lease, Liability, Payments, Due Year Four",
                            "terseLabel":  "2022"
                            }
                        }
                    },
                "localname":  "FinanceLeaseLiabilityPaymentsDueYearFour",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree":  {
                "auth_ref":  [
                    "r332"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  2.0,
                        "parentTag":  "sfly_LeaseLiabilityPaymentsDueYearThree",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails_1":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_FinanceLeaseLiabilityPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of lessee's undiscounted obligation for lease payments for finance lease, due in third fiscal year following latest fiscal year.",
                            "label":  "Finance Lease, Liability, Payments, Due Year Three",
                            "terseLabel":  "2021"
                            }
                        }
                    },
                "localname":  "FinanceLeaseLiabilityPaymentsDueYearThree",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo":  {
                "auth_ref":  [
                    "r332"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  2.0,
                        "parentTag":  "sfly_LeaseLiabilityPaymentsDueYearTwo",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails_1":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_FinanceLeaseLiabilityPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of lessee's undiscounted obligation for lease payments for finance lease, due in second fiscal year following latest fiscal year.",
                            "label":  "Finance Lease, Liability, Payments, Due Year Two",
                            "terseLabel":  "2020"
                            }
                        }
                    },
                "localname":  "FinanceLeaseLiabilityPaymentsDueYearTwo",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear":  {
                "auth_ref":  [
                    "r332"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  2.0,
                        "parentTag":  "sfly_LeaseLiabilityPaymentsRemainderOfFiscalYear",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails_1":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_FinanceLeaseLiabilityPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of lessee's undiscounted obligation for lease payments for finance lease, due in remainder of fiscal year following latest fiscal year ended.",
                            "label":  "Finance Lease, Liability, Payments, Remainder of Fiscal Year",
                            "terseLabel":  "Remainder of 2019"
                            }
                        }
                    },
                "localname":  "FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount":  {
                "auth_ref":  [
                    "r332"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  2.0,
                        "parentTag":  "sfly_LeaseLiabilityUndiscountedExcessAmount",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for finance lease.",
                            "label":  "Finance Lease, Liability, Undiscounted Excess Amount",
                            "negatedLabel":  "Less:  Interest"
                            }
                        }
                    },
                "localname":  "FinanceLeaseLiabilityUndiscountedExcessAmount",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_FinanceLeasePrincipalPayments":  {
                "auth_ref":  [
                    "r317",
                    "r327"
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of cash outflow for principal payment on finance lease.",
                            "label":  "Finance Lease, Principal Payments",
                            "terseLabel":  "Financing cash flows from finance leases"
                            }
                        }
                    },
                "localname":  "FinanceLeasePrincipalPayments",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesSupplementalCashFlowInformationDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_FinanceLeaseRightOfUseAsset":  {
                "auth_ref":  [
                    "r314"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesROUAssetsandLeaseLiabilitiesDetails":  {
                        "order":  1.0,
                        "parentTag":  "sfly_LeasesRightofUseAsset",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of lessee's right to use underlying asset under finance lease.",
                            "label":  "Finance Lease, Right-of-Use Asset",
                            "terseLabel":  "Finance right-of-use assets"
                            }
                        }
                    },
                "localname":  "FinanceLeaseRightOfUseAsset",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPropertyandEquipmentNetDetails",
                    "http://www.shutterfly.com/role/LeasesROUAssetsandLeaseLiabilitiesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_FinanceLeaseRightOfUseAssetAmortization":  {
                "auth_ref":  [
                    "r316",
                    "r323",
                    "r333"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesComponentsofLeaseCostDetails":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_LeaseCost",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of amortization expense attributable to right-of-use asset from finance lease.",
                            "label":  "Finance Lease, Right-of-Use Asset, Amortization",
                            "terseLabel":  "Amortization of right-of-use-assets"
                            }
                        }
                    },
                "localname":  "FinanceLeaseRightOfUseAssetAmortization",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesComponentsofLeaseCostDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent":  {
                "auth_ref":  [
                    "r330",
                    "r333"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Weighted average discount rate for finance lease calculated at point in time.",
                            "label":  "Finance Lease, Weighted Average Discount Rate, Percent",
                            "terseLabel":  "Finance lease, weighted average discount rate, percent"
                            }
                        }
                    },
                "localname":  "FinanceLeaseWeightedAverageDiscountRatePercent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesLeaseTermandDiscountRateDetails"
                    ],
                "xbrltype":  "percentItemType"
                },
            "us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1":  {
                "auth_ref":  [
                    "r329",
                    "r333"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
                            "label":  "Finance Lease, Weighted Average Remaining Lease Term",
                            "terseLabel":  "Finance lease, weighted average remaining lease term"
                            }
                        }
                    },
                "localname":  "FinanceLeaseWeightedAverageRemainingLeaseTerm1",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesLeaseTermandDiscountRateDetails"
                    ],
                "xbrltype":  "durationItemType"
                },
            "us-gaap_FinancialInstrumentAxis":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by type of financial instrument.",
                            "label":  "Financial Instrument [Axis]",
                            "terseLabel":  "Financial Instrument [Axis]"
                            }
                        }
                    },
                "localname":  "FinancialInstrumentAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/InvestmentsScheduleofEstimatedFairValueDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_FiniteLivedIntangibleAssetUsefulLife":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
                            "label":  "Finite-Lived Intangible Asset, Useful Life",
                            "terseLabel":  "Weighted Average Useful Life (years)"
                            }
                        }
                    },
                "localname":  "FiniteLivedIntangibleAssetUsefulLife",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails"
                    ],
                "xbrltype":  "durationItemType"
                },
            "us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization":  {
                "auth_ref":  [
                    "r148"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_FiniteLivedIntangibleAssetsNet",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.",
                            "label":  "Finite-Lived Intangible Assets, Accumulated Amortization",
                            "negatedLabel":  "Less: accumulated amortization"
                            }
                        }
                    },
                "localname":  "FiniteLivedIntangibleAssetsAccumulatedAmortization",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails_1":  {
                        "order":  5.0,
                        "parentTag":  "us-gaap_FiniteLivedIntangibleAssetsNet",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized after the fifth fiscal year following the latest fiscal year.  Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
                            "label":  "Finite-Lived Intangible Assets, Amortization Expense, after Year Five",
                            "terseLabel":  "Thereafter"
                            }
                        }
                    },
                "localname":  "FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails_1":  {
                        "order":  6.0,
                        "parentTag":  "us-gaap_FiniteLivedIntangibleAssetsNet",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the remainder of the fiscal year following the latest fiscal year.  Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
                            "label":  "Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year",
                            "terseLabel":  "Remainder of 2019"
                            }
                        }
                    },
                "localname":  "FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive":  {
                "auth_ref":  [
                    "r150"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails_1":  {
                        "order":  4.0,
                        "parentTag":  "us-gaap_FiniteLivedIntangibleAssetsNet",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year.  Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
                            "label":  "Finite-Lived Intangible Assets, Amortization Expense, Year Five",
                            "terseLabel":  "2023"
                            }
                        }
                    },
                "localname":  "FiniteLivedIntangibleAssetsAmortizationExpenseYearFive",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour":  {
                "auth_ref":  [
                    "r150"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails_1":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_FiniteLivedIntangibleAssetsNet",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year.  Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
                            "label":  "Finite-Lived Intangible Assets, Amortization Expense, Year Four",
                            "terseLabel":  "2022"
                            }
                        }
                    },
                "localname":  "FiniteLivedIntangibleAssetsAmortizationExpenseYearFour",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree":  {
                "auth_ref":  [
                    "r150"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails_1":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_FiniteLivedIntangibleAssetsNet",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year.  Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
                            "label":  "Finite-Lived Intangible Assets, Amortization Expense, Year Three",
                            "terseLabel":  "2021"
                            }
                        }
                    },
                "localname":  "FiniteLivedIntangibleAssetsAmortizationExpenseYearThree",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo":  {
                "auth_ref":  [
                    "r150"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails_1":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_FiniteLivedIntangibleAssetsNet",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year.  Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
                            "label":  "Finite-Lived Intangible Assets, Amortization Expense, Year Two",
                            "terseLabel":  "2020"
                            }
                        }
                    },
                "localname":  "FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis":  {
                "auth_ref":  [
                    "r143",
                    "r145",
                    "r148",
                    "r151",
                    "r339"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by major type or class of finite-lived intangible assets.",
                            "label":  "Finite-Lived Intangible Assets by Major Class [Axis]",
                            "terseLabel":  "Finite-Lived Intangible Assets by Major Class [Axis]"
                            }
                        }
                    },
                "localname":  "FiniteLivedIntangibleAssetsByMajorClassAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_FiniteLivedIntangibleAssetsLineItems":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Line items represent financial concepts included in a table.  These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
                            "label":  "Finite-Lived Intangible Assets [Line Items]",
                            "terseLabel":  "Finite-Lived Intangible Assets [Line Items]"
                            }
                        }
                    },
                "localname":  "FiniteLivedIntangibleAssetsLineItems",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain":  {
                "auth_ref":  [
                    "r143",
                    "r147"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The major class of finite-lived intangible asset (for example, patents, trademarks, copyrights, etc.) A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.",
                            "label":  "Finite-Lived Intangible Assets, Major Class Name [Domain]",
                            "terseLabel":  "Finite-Lived Intangible Assets, Major Class Name [Domain]"
                            }
                        }
                    },
                "localname":  "FiniteLivedIntangibleAssetsMajorClassNameDomain",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_FiniteLivedIntangibleAssetsNet":  {
                "auth_ref":  [
                    "r148"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        },
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails_1":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.",
                            "label":  "Finite-Lived Intangible Assets, Net",
                            "totalLabel":  "Intangible assets, net"
                            }
                        }
                    },
                "localname":  "FiniteLivedIntangibleAssetsNet",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_FinitelivedIntangibleAssetsAcquired1":  {
                "auth_ref":  [
                    "r144"
                    ],
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.",
                            "label":  "Finite-lived Intangible Assets Acquired",
                            "terseLabel":  "Finite-lived intangible assets acquired"
                            }
                        }
                    },
                "localname":  "FinitelivedIntangibleAssetsAcquired1",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/AcquisitionNarrativeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_FurnitureAndFixturesMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities.  Examples include, but are not limited to, desks, chairs, tables, and bookcases.",
                            "label":  "Furniture and Fixtures [Member]",
                            "terseLabel":  "Furniture and fixtures and other"
                            }
                        }
                    },
                "localname":  "FurnitureAndFixturesMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPropertyandEquipmentNetDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_GainLossOnSaleOfPropertyPlantEquipment":  {
                "auth_ref":  [
                    "r87"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  6.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInOperatingActivities",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.",
                            "label":  "Gain (Loss) on Disposition of Property Plant Equipment",
                            "negatedLabel":  "(Gain) loss on disposal of property and equipment"
                            }
                        }
                    },
                "localname":  "GainLossOnSaleOfPropertyPlantEquipment",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_GeneralAndAdministrativeExpense":  {
                "auth_ref":  [
                    "r69"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_OperatingExpenses",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.",
                            "label":  "General and Administrative Expense",
                            "verboseLabel":  "General and administrative"
                            }
                        }
                    },
                "localname":  "GeneralAndAdministrativeExpense",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_GeneralAndAdministrativeExpenseMember":  {
                "auth_ref":  [
                    "r65"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Primary financial statement caption encompassing general and administrative expense.",
                            "label":  "General and Administrative Expense [Member]",
                            "verboseLabel":  "General and administrative"
                            }
                        }
                    },
                "localname":  "GeneralAndAdministrativeExpenseMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationExpenseDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_Goodwill":  {
                "auth_ref":  [
                    "r136",
                    "r137"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  5.0,
                        "parentTag":  "us-gaap_Assets",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.",
                            "label":  "Goodwill",
                            "periodEndLabel":  "End of period",
                            "periodStartLabel":  "Beginning of period",
                            "terseLabel":  "Goodwill",
                            "verboseLabel":  "Goodwill"
                            }
                        }
                    },
                "localname":  "Goodwill",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/AcquisitionNarrativeDetails",
                    "http://www.shutterfly.com/role/BalanceSheetComponentsGoodwillDetails",
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Goodwill and Intangible Assets Disclosure [Abstract]"
                            }
                        }
                    },
                "localname":  "GoodwillAndIntangibleAssetsDisclosureAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "xbrltype":  "stringItemType"
                },
            "us-gaap_GoodwillForeignCurrencyTranslationGainLoss":  {
                "auth_ref":  [
                    "r138"
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.",
                            "label":  "Goodwill, Foreign Currency Translation Gain (Loss)",
                            "negatedLabel":  "Goodwill, Foreign Currency Translation Gain (Loss)"
                            }
                        }
                    },
                "localname":  "GoodwillForeignCurrencyTranslationGainLoss",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsGoodwillDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_GoodwillLineItems":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Line items represent financial concepts included in a table.  These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
                            "label":  "Goodwill [Line Items]",
                            "terseLabel":  "Goodwill [Line Items]"
                            }
                        }
                    },
                "localname":  "GoodwillLineItems",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsGoodwillDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_GoodwillRollForward":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
                            "label":  "Goodwill [Roll Forward]",
                            "terseLabel":  "Goodwill [Roll Forward]"
                            }
                        }
                    },
                "localname":  "GoodwillRollForward",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsGoodwillDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_GrossProfit":  {
                "auth_ref":  [
                    "r67"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails":  {
                        "order":  9.0,
                        "parentTag":  "us-gaap_OperatingIncomeLoss",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.",
                            "label":  "Gross Profit",
                            "terseLabel":  "Gross Profit",
                            "totalLabel":  "Gross profit"
                            }
                        }
                    },
                "localname":  "GrossProfit",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS",
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails",
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_HedgingDesignationAxis":  {
                "auth_ref":  [
                    "r274",
                    "r286"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by designation of purpose of derivative instrument.",
                            "label":  "Hedging Designation [Axis]",
                            "terseLabel":  "Hedging Designation [Axis]"
                            }
                        }
                    },
                "localname":  "HedgingDesignationAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_HedgingDesignationDomain":  {
                "auth_ref":  [
                    "r274"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Designation of purpose of derivative instrument.",
                            "label":  "Hedging Designation [Domain]",
                            "terseLabel":  "Hedging Designation [Domain]"
                            }
                        }
                    },
                "localname":  "HedgingDesignationDomain",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_HedgingRelationshipDomain":  {
                "auth_ref":  [
                    "r274"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Nature or intent of a hedge.",
                            "label":  "Hedging Relationship [Domain]",
                            "terseLabel":  "Hedging Relationship [Domain]"
                            }
                        }
                    },
                "localname":  "HedgingRelationshipDomain",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments":  {
                "auth_ref":  [
                    "r93"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_NetIncomeLoss",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.",
                            "label":  "Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest",
                            "totalLabel":  "Loss before income taxes"
                            }
                        }
                    },
                "localname":  "IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS",
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_IncomeStatementAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Income Statement [Abstract]"
                            }
                        }
                    },
                "localname":  "IncomeStatementAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "xbrltype":  "stringItemType"
                },
            "us-gaap_IncomeStatementLocationAxis":  {
                "auth_ref":  [
                    "r156"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by location in the income statement.",
                            "label":  "Income Statement Location [Axis]",
                            "terseLabel":  "Income Statement Location [Axis]"
                            }
                        }
                    },
                "localname":  "IncomeStatementLocationAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails",
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationExpenseDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_IncomeStatementLocationDomain":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Location in the income statement.",
                            "label":  "Income Statement Location [Domain]",
                            "terseLabel":  "Income Statement Location [Domain]"
                            }
                        }
                    },
                "localname":  "IncomeStatementLocationDomain",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails",
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationExpenseDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_IncomeTaxExpenseBenefit":  {
                "auth_ref":  [
                    "r91",
                    "r113",
                    "r249"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_NetIncomeLoss",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.",
                            "label":  "Income Tax Expense (Benefit)",
                            "negatedLabel":  "Benefit from income taxes"
                            }
                        }
                    },
                "localname":  "IncomeTaxExpenseBenefit",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_IncreaseDecreaseInAccountsPayable":  {
                "auth_ref":  [
                    "r86"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  13.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInOperatingActivities",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.",
                            "label":  "Increase (Decrease) in Accounts Payable",
                            "terseLabel":  "Accounts payable"
                            }
                        }
                    },
                "localname":  "IncreaseDecreaseInAccountsPayable",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_IncreaseDecreaseInAccountsReceivable":  {
                "auth_ref":  [
                    "r86"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  10.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInOperatingActivities",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.",
                            "label":  "Increase (Decrease) in Accounts Receivable",
                            "negatedLabel":  "Accounts receivable"
                            }
                        }
                    },
                "localname":  "IncreaseDecreaseInAccountsReceivable",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_IncreaseDecreaseInAccruedLiabilities":  {
                "auth_ref":  [
                    "r86"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  14.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInOperatingActivities",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The increase (decrease) during the reporting period in the aggregate amount of expenses incurred but not yet paid.",
                            "label":  "Increase (Decrease) in Accrued Liabilities",
                            "terseLabel":  "Accrued and other liabilities"
                            }
                        }
                    },
                "localname":  "IncreaseDecreaseInAccruedLiabilities",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_IncreaseDecreaseInInventories":  {
                "auth_ref":  [
                    "r86"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  11.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInOperatingActivities",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.",
                            "label":  "Increase (Decrease) in Inventories",
                            "negatedLabel":  "Inventories"
                            }
                        }
                    },
                "localname":  "IncreaseDecreaseInInventories",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_IncreaseDecreaseInOperatingCapitalAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Increase (Decrease) in Operating Capital [Abstract]",
                            "terseLabel":  "Changes in operating assets and liabilities, net of acquisition:"
                            }
                        }
                    },
                "localname":  "IncreaseDecreaseInOperatingCapitalAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets":  {
                "auth_ref":  [
                    "r86"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  12.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInOperatingActivities",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of increase (decrease) in prepaid expenses, and assets classified as other.",
                            "label":  "Increase (Decrease) in Prepaid Expense and Other Assets",
                            "negatedLabel":  "Prepaid expenses and other assets"
                            }
                        }
                    },
                "localname":  "IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_IncreaseDecreaseInStockholdersEquityRollForward":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
                            "label":  "Increase (Decrease) in Stockholders' Equity [Roll Forward]",
                            "terseLabel":  "Increase (Decrease) in Stockholders' Equity [Roll Forward]"
                            }
                        }
                    },
                "localname":  "IncreaseDecreaseInStockholdersEquityRollForward",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities":  {
                "auth_ref":  [
                    "r102",
                    "r105"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of convertible debt securities using the if-converted method.",
                            "label":  "Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities",
                            "terseLabel":  "Dilutive effect of convertible debt (in shares)"
                            }
                        }
                    },
                "localname":  "IncrementalCommonSharesAttributableToConversionOfDebtSecurities",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/NetLossPerShareNarrativeDetails"
                    ],
                "xbrltype":  "sharesItemType"
                },
            "us-gaap_IntangibleAssetsGrossExcludingGoodwill":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_FiniteLivedIntangibleAssetsNet",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount before accumulated amortization of intangible assets, excluding goodwill.",
                            "label":  "Intangible Assets, Gross (Excluding Goodwill)",
                            "terseLabel":  "Intangible assets, gross"
                            }
                        }
                    },
                "localname":  "IntangibleAssetsGrossExcludingGoodwill",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_IntangibleAssetsNetExcludingGoodwill":  {
                "auth_ref":  [
                    "r141",
                    "r146"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  4.0,
                        "parentTag":  "us-gaap_Assets",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.",
                            "label":  "Intangible Assets, Net (Excluding Goodwill)",
                            "verboseLabel":  "Intangible assets, net"
                            }
                        }
                    },
                "localname":  "IntangibleAssetsNetExcludingGoodwill",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_InterestExpense":  {
                "auth_ref":  [
                    "r63",
                    "r111",
                    "r305",
                    "r308",
                    "r352"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of the cost of borrowed funds accounted for as interest expense.",
                            "label":  "Interest Expense",
                            "negatedLabel":  "Interest expense",
                            "terseLabel":  "Interest expense"
                            }
                        }
                    },
                "localname":  "InterestExpense",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS",
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsDetails",
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_InterestExpenseDebt":  {
                "auth_ref":  [
                    "r71",
                    "r184"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/DebtScheduleofInterestExpenseDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of the cost of borrowed funds accounted for as interest expense for debt.",
                            "label":  "Interest Expense, Debt",
                            "totalLabel":  "Total"
                            }
                        }
                    },
                "localname":  "InterestExpenseDebt",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtScheduleofInterestExpenseDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_InterestExpenseDebtExcludingAmortization":  {
                "auth_ref":  [
                    "r72"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/DebtScheduleofInterestExpenseDetails":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_InterestExpenseDebt",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Represents the portion of interest incurred in the period on debt arrangements that was charged against earnings, excluding amortization of debt discount (premium) and financing costs.",
                            "label":  "Interest Expense, Debt, Excluding Amortization",
                            "terseLabel":  "Floating interest (including the effects of cash flow hedges)"
                            }
                        }
                    },
                "localname":  "InterestExpenseDebtExcludingAmortization",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtScheduleofInterestExpenseDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_InterestRateSwapMember":  {
                "auth_ref":  [
                    "r284"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Forward based contracts in which two parties agree to swap periodic payments that are fixed at the outset of the swap contract with variable payments based on a market interest rate (index rate) over a specified period.",
                            "label":  "Interest Rate Swap [Member]",
                            "terseLabel":  "Interest rate swap agreement"
                            }
                        }
                    },
                "localname":  "InterestRateSwapMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_InventoryNet":  {
                "auth_ref":  [
                    "r3",
                    "r42",
                    "r135"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  4.0,
                        "parentTag":  "us-gaap_AssetsCurrent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.",
                            "label":  "Inventory, Net",
                            "verboseLabel":  "Inventories"
                            }
                        }
                    },
                "localname":  "InventoryNet",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_InvestmentBuildingAndBuildingImprovements":  {
                "auth_ref":  [
                    "r365"
                    ],
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Aggregate of the carrying amounts as of the balance sheet date of investments in building and building improvements.",
                            "label":  "Investment Building and Building Improvements",
                            "terseLabel":  "Building assets"
                            }
                        }
                    },
                "localname":  "InvestmentBuildingAndBuildingImprovements",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_InvestmentIncomeInterest":  {
                "auth_ref":  [
                    "r70",
                    "r110"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.",
                            "label":  "Investment Income, Interest",
                            "terseLabel":  "Interest and other income, net"
                            }
                        }
                    },
                "localname":  "InvestmentIncomeInterest",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS",
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_InvestmentTypeAxis":  {
                "auth_ref":  [
                    "r369",
                    "r370",
                    "r371",
                    "r372"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by type of investments.",
                            "label":  "Investment Type [Axis]",
                            "terseLabel":  "Investment Type [Axis]"
                            }
                        }
                    },
                "localname":  "InvestmentTypeAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/FairValueMeasurementCashEquivalentsandInvestmentsDetails",
                    "http://www.shutterfly.com/role/InvestmentsScheduleofEstimatedFairValueDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_InvestmentTypeCategorizationMember":  {
                "auth_ref":  [
                    "r369",
                    "r370",
                    "r371",
                    "r372"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Asset obtained to generate income or appreciate in value.",
                            "label":  "Investments [Domain]",
                            "terseLabel":  "Investments [Domain]"
                            }
                        }
                    },
                "localname":  "InvestmentTypeCategorizationMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/FairValueMeasurementCashEquivalentsandInvestmentsDetails",
                    "http://www.shutterfly.com/role/InvestmentsScheduleofEstimatedFairValueDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments.",
                            "label":  "Investments Classified by Contractual Maturity Date [Table Text Block]",
                            "terseLabel":  "Estimated fair values of short and long-term investments classified by date of contractual maturity"
                            }
                        }
                    },
                "localname":  "InvestmentsClassifiedByContractualMaturityDateTableTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/InvestmentsTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Investments, Debt and Equity Securities [Abstract]"
                            }
                        }
                    },
                "localname":  "InvestmentsDebtAndEquitySecuritiesAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "xbrltype":  "stringItemType"
                },
            "us-gaap_InvestmentsFairValueDisclosure":  {
                "auth_ref":  [
                    "r293"
                    ],
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.",
                            "label":  "Investments, Fair Value Disclosure",
                            "terseLabel":  "Investments"
                            }
                        }
                    },
                "localname":  "InvestmentsFairValueDisclosure",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/FairValueMeasurementCashEquivalentsandInvestmentsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock":  {
                "auth_ref":  [
                    "r134",
                    "r340",
                    "r354",
                    "r373"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The entire disclosure for  investments in certain debt and equity securities.",
                            "label":  "Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]",
                            "terseLabel":  "Investments"
                            }
                        }
                    },
                "localname":  "InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/Investments"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_LeaseCost":  {
                "auth_ref":  [
                    "r331",
                    "r333"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesComponentsofLeaseCostDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of lease cost recognized by lessee for lease contract.",
                            "label":  "Lease, Cost",
                            "totalLabel":  "Net lease cost"
                            }
                        }
                    },
                "localname":  "LeaseCost",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesComponentsofLeaseCostDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LeaseCostTableTextBlock":  {
                "auth_ref":  [
                    "r331"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of lessee's lease cost.  Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.",
                            "label":  "Lease, Cost [Table Text Block]",
                            "terseLabel":  "Components of lease cost"
                            }
                        }
                    },
                "localname":  "LeaseCostTableTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_LeaseholdImprovementsMember":  {
                "auth_ref":  [
                    "r153"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Additions or improvements to assets held under a lease arrangement.",
                            "label":  "Leasehold Improvements [Member]",
                            "terseLabel":  "Leasehold improvements"
                            }
                        }
                    },
                "localname":  "LeaseholdImprovementsMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPropertyandEquipmentNetDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_LeasesAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Leases [Abstract]",
                            "terseLabel":  "Leases [Abstract]"
                            }
                        }
                    },
                "localname":  "LeasesAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "xbrltype":  "stringItemType"
                },
            "us-gaap_LesseeFinanceLeasesTextBlock":  {
                "auth_ref":  [
                    "r334"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The entire disclosure for finance leases of lessee.  Includes, but is not limited to, description of lessee's finance lease and maturity analysis of finance lease liability.",
                            "label":  "Lessee, Finance Leases [Text Block]",
                            "terseLabel":  "Leases"
                            }
                        }
                    },
                "localname":  "LesseeFinanceLeasesTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/Leases"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_LesseeLeaseDescriptionLineItems":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Line items represent financial concepts included in a table.  These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
                            "label":  "Lessee, Lease, Description [Line Items]",
                            "terseLabel":  "Lessee, Lease, Description [Line Items]"
                            }
                        }
                    },
                "localname":  "LesseeLeaseDescriptionLineItems",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesNarrativeDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_LesseeLeaseDescriptionTable":  {
                "auth_ref":  [
                    "r322"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Disclosure of information about lessee's leases.",
                            "label":  "Lessee, Lease, Description [Table]",
                            "terseLabel":  "Lessee, Lease, Description [Table]"
                            }
                        }
                    },
                "localname":  "LesseeLeaseDescriptionTable",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesNarrativeDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_LesseeLeasesPolicyTextBlock":  {
                "auth_ref":  [
                    "r320"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Disclosure of accounting policy for leasing arrangement entered into by lessee.",
                            "label":  "Lessee, Leases [Policy Text Block]",
                            "terseLabel":  "Lease Accounting"
                            }
                        }
                    },
                "localname":  "LesseeLeasesPolicyTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesPolicies"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1":  {
                "auth_ref":  [
                    "r321"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Term of lessee's operating lease not yet commenced, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
                            "label":  "Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract",
                            "terseLabel":  "Lessee, operating lease, lease not yet commenced, term (years)"
                            }
                        }
                    },
                "localname":  "LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesNarrativeDetails"
                    ],
                "xbrltype":  "durationItemType"
                },
            "us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock":  {
                "auth_ref":  [
                    "r332"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of undiscounted cash flows of lessee's operating lease liability.  Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position.",
                            "label":  "Lessee, Operating Lease, Liability, Maturity [Table Text Block]",
                            "terseLabel":  "Future Minimum Payments of Operating Leases"
                            }
                        }
                    },
                "localname":  "LesseeOperatingLeaseLiabilityMaturityTableTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue":  {
                "auth_ref":  [
                    "r332"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  1.0,
                        "parentTag":  "sfly_LeaseLiabilityPaymentsDue",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails_1":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of lessee's undiscounted obligation for lease payments for operating lease.",
                            "label":  "Lessee, Operating Lease, Liability, Payments, Due",
                            "totalLabel":  "Total lease payments"
                            }
                        }
                    },
                "localname":  "LesseeOperatingLeaseLiabilityPaymentsDue",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive":  {
                "auth_ref":  [
                    "r332"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  1.0,
                        "parentTag":  "sfly_LeaseLiabilityPaymentsDueAfterYearFive",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails_1":  {
                        "order":  6.0,
                        "parentTag":  "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of lessee's undiscounted obligation for lease payments for operating lease, due after fifth fiscal year following latest fiscal year.",
                            "label":  "Lessee, Operating Lease, Liability, Payments, Due after Year Five",
                            "terseLabel":  "Thereafter"
                            }
                        }
                    },
                "localname":  "LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive":  {
                "auth_ref":  [
                    "r332"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  1.0,
                        "parentTag":  "sfly_LeaseLiabilityPaymentsDueYearFive",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails_1":  {
                        "order":  5.0,
                        "parentTag":  "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fifth fiscal year following latest fiscal year.",
                            "label":  "Lessee, Operating Lease, Liability, Payments, Due Year Five",
                            "terseLabel":  "2023"
                            }
                        }
                    },
                "localname":  "LesseeOperatingLeaseLiabilityPaymentsDueYearFive",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour":  {
                "auth_ref":  [
                    "r332"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  1.0,
                        "parentTag":  "sfly_LeaseLiabilityPaymentsDueYearFour",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails_1":  {
                        "order":  4.0,
                        "parentTag":  "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fourth fiscal year following latest fiscal year.",
                            "label":  "Lessee, Operating Lease, Liability, Payments, Due Year Four",
                            "terseLabel":  "2022"
                            }
                        }
                    },
                "localname":  "LesseeOperatingLeaseLiabilityPaymentsDueYearFour",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree":  {
                "auth_ref":  [
                    "r332"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  1.0,
                        "parentTag":  "sfly_LeaseLiabilityPaymentsDueYearThree",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails_1":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of lessee's undiscounted obligation for lease payments for operating lease, due in third fiscal year following latest fiscal year.",
                            "label":  "Lessee, Operating Lease, Liability, Payments, Due Year Three",
                            "terseLabel":  "2021"
                            }
                        }
                    },
                "localname":  "LesseeOperatingLeaseLiabilityPaymentsDueYearThree",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo":  {
                "auth_ref":  [
                    "r332"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  1.0,
                        "parentTag":  "sfly_LeaseLiabilityPaymentsDueYearTwo",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails_1":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of lessee's undiscounted obligation for lease payments for operating lease, due in second fiscal year following latest fiscal year.",
                            "label":  "Lessee, Operating Lease, Liability, Payments, Due Year Two",
                            "terseLabel":  "2020"
                            }
                        }
                    },
                "localname":  "LesseeOperatingLeaseLiabilityPaymentsDueYearTwo",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear":  {
                "auth_ref":  [
                    "r332"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  1.0,
                        "parentTag":  "sfly_LeaseLiabilityPaymentsRemainderOfFiscalYear",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails_1":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of lessee's undiscounted obligation for lease payments for operating lease having an initial or remaining lease term in excess of one year due in remainder of fiscal year following latest fiscal year.",
                            "label":  "Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year",
                            "terseLabel":  "Remainder of 2019"
                            }
                        }
                    },
                "localname":  "LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount":  {
                "auth_ref":  [
                    "r332"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  1.0,
                        "parentTag":  "sfly_LeaseLiabilityUndiscountedExcessAmount",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.",
                            "label":  "Lessee, Operating Lease, Liability, Undiscounted Excess Amount",
                            "negatedLabel":  "Less:  Interest"
                            }
                        }
                    },
                "localname":  "LesseeOperatingLeaseLiabilityUndiscountedExcessAmount",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LesseeOperatingLeasesTextBlock":  {
                "auth_ref":  [
                    "r334"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The entire disclosure for operating leases of lessee.  Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability.",
                            "label":  "Lessee, Operating Leases [Text Block]",
                            "verboseLabel":  "Leases"
                            }
                        }
                    },
                "localname":  "LesseeOperatingLeasesTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/Leases"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_LettersOfCreditOutstandingAmount":  {
                "auth_ref":  [
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.",
                            "label":  "Letters of Credit Outstanding, Amount",
                            "terseLabel":  "Letters of credit, amount"
                            }
                        }
                    },
                "localname":  "LettersOfCreditOutstandingAmount",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CommitmentsandContingenciesNarrativeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_Liabilities":  {
                "auth_ref":  [
                    "r34"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_LiabilitiesAndStockholdersEquity",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized.  Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.",
                            "label":  "Liabilities",
                            "totalLabel":  "Total liabilities",
                            "verboseLabel":  "Liabilities"
                            }
                        }
                    },
                "localname":  "Liabilities",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS",
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LiabilitiesAndStockholdersEquity":  {
                "auth_ref":  [
                    "r23",
                    "r345",
                    "r362"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.",
                            "label":  "Liabilities and Equity",
                            "totalLabel":  "Total liabilities and stockholders' equity"
                            }
                        }
                    },
                "localname":  "LiabilitiesAndStockholdersEquity",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LiabilitiesAndStockholdersEquityAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Liabilities and Equity [Abstract]",
                            "terseLabel":  "LIABILITIES AND STOCKHOLDERS\u2019 EQUITY"
                            }
                        }
                    },
                "localname":  "LiabilitiesAndStockholdersEquityAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_LiabilitiesCurrent":  {
                "auth_ref":  [
                    "r36"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_Liabilities",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.",
                            "label":  "Liabilities, Current",
                            "totalLabel":  "Total current liabilities"
                            }
                        }
                    },
                "localname":  "LiabilitiesCurrent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LiabilitiesCurrentAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Liabilities, Current [Abstract]",
                            "terseLabel":  "Current liabilities:"
                            }
                        }
                    },
                "localname":  "LiabilitiesCurrentAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_LineOfCredit":  {
                "auth_ref":  [
                    "r14",
                    "r344",
                    "r356"
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount.  Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line.  Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.",
                            "label":  "Long-term Line of Credit",
                            "terseLabel":  "Amount of draw on term loan facility"
                            }
                        }
                    },
                "localname":  "LineOfCredit",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtNarrativeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity":  {
                "auth_ref":  [
                    "r32"
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.",
                            "label":  "Line of Credit Facility, Maximum Borrowing Capacity",
                            "terseLabel":  "Maximum borrowing capacity"
                            }
                        }
                    },
                "localname":  "LineOfCreditFacilityMaximumBorrowingCapacity",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtNarrativeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity":  {
                "auth_ref":  [
                    "r32"
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).",
                            "label":  "Line of Credit Facility, Remaining Borrowing Capacity",
                            "terseLabel":  "Amount of credit facility undrawn"
                            }
                        }
                    },
                "localname":  "LineOfCreditFacilityRemainingBorrowingCapacity",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtNarrativeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LineOfCreditMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "A contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time, and under which borrowings outstanding may be either short-term or long-term, depending upon the particulars.",
                            "label":  "Line of Credit [Member]",
                            "terseLabel":  "Line of credit"
                            }
                        }
                    },
                "localname":  "LineOfCreditMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtNarrativeDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_LoansPayableFairValueDisclosure":  {
                "auth_ref":  [
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Fair value portion of contractual obligation to pay money on demand or on fixed or determinable dates.",
                            "label":  "Loans Payable, Fair Value Disclosure",
                            "terseLabel":  "Term Loans"
                            }
                        }
                    },
                "localname":  "LoansPayableFairValueDisclosure",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/FairValueMeasurementBorrowingsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LoansPayableMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Borrowing supported by a written promise to pay an obligation.",
                            "label":  "Loans Payable [Member]",
                            "terseLabel":  "Term Loan"
                            }
                        }
                    },
                "localname":  "LoansPayableMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtNarrativeDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofEffectiveInterestRatesDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofInterestExpenseDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_LondonInterbankOfferedRateLIBORMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Interest rate at which a bank borrows funds from other banks in the London interbank market.",
                            "label":  "London Interbank Offered Rate (LIBOR) [Member]",
                            "terseLabel":  "LIBOR"
                            }
                        }
                    },
                "localname":  "LondonInterbankOfferedRateLIBORMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_LongLivedAssetsHeldForSaleLineItems":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Line items represent financial concepts included in a table.  These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
                            "label":  "Long Lived Assets Held-for-sale [Line Items]",
                            "terseLabel":  "Long Lived Assets Held-for-sale [Line Items]"
                            }
                        }
                    },
                "localname":  "LongLivedAssetsHeldForSaleLineItems",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAssetsHeldforSaleDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_LongTermDebt":  {
                "auth_ref":  [
                    "r14",
                    "r182",
                    "r344",
                    "r360"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        },
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails_1":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        },
                    "http://www.shutterfly.com/role/DebtSummaryofMaturitiesofAssumedDebtDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt.  Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper.  Excludes capital lease obligations.",
                            "label":  "Long-term Debt",
                            "totalLabel":  "Total principal payments"
                            }
                        }
                    },
                "localname":  "LongTermDebt",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails",
                    "http://www.shutterfly.com/role/DebtSummaryofMaturitiesofAssumedDebtDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LongTermDebtCurrent":  {
                "auth_ref":  [
                    "r33"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_LiabilitiesCurrent",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_LongTermDebt",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current.  Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper.  Excludes capital lease obligations.",
                            "label":  "Long-term Debt, Current Maturities",
                            "negatedTerseLabel":  "Less: current portion",
                            "terseLabel":  "Current portion of long-term debt"
                            }
                        }
                    },
                "localname":  "LongTermDebtCurrent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS",
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive":  {
                "auth_ref":  [
                    "r95",
                    "r178"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/DebtSummaryofMaturitiesofAssumedDebtDetails":  {
                        "order":  6.0,
                        "parentTag":  "us-gaap_LongTermDebt",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year.  Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
                            "label":  "Long-term Debt, Maturities, Repayments of Principal after Year Five",
                            "terseLabel":  "2024"
                            }
                        }
                    },
                "localname":  "LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtSummaryofMaturitiesofAssumedDebtDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive":  {
                "auth_ref":  [
                    "r95",
                    "r178"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/DebtSummaryofMaturitiesofAssumedDebtDetails":  {
                        "order":  5.0,
                        "parentTag":  "us-gaap_LongTermDebt",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year.  Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
                            "label":  "Long-term Debt, Maturities, Repayments of Principal in Year Five",
                            "terseLabel":  "2023"
                            }
                        }
                    },
                "localname":  "LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtSummaryofMaturitiesofAssumedDebtDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour":  {
                "auth_ref":  [
                    "r95",
                    "r178"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/DebtSummaryofMaturitiesofAssumedDebtDetails":  {
                        "order":  4.0,
                        "parentTag":  "us-gaap_LongTermDebt",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year.  Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
                            "label":  "Long-term Debt, Maturities, Repayments of Principal in Year Four",
                            "terseLabel":  "2022"
                            }
                        }
                    },
                "localname":  "LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtSummaryofMaturitiesofAssumedDebtDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree":  {
                "auth_ref":  [
                    "r95",
                    "r178"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/DebtSummaryofMaturitiesofAssumedDebtDetails":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_LongTermDebt",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year.  Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
                            "label":  "Long-term Debt, Maturities, Repayments of Principal in Year Three",
                            "terseLabel":  "2021"
                            }
                        }
                    },
                "localname":  "LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtSummaryofMaturitiesofAssumedDebtDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo":  {
                "auth_ref":  [
                    "r95",
                    "r178"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/DebtSummaryofMaturitiesofAssumedDebtDetails":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_LongTermDebt",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year.  Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
                            "label":  "Long-term Debt, Maturities, Repayments of Principal in Year Two",
                            "terseLabel":  "2020"
                            }
                        }
                    },
                "localname":  "LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtSummaryofMaturitiesofAssumedDebtDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear":  {
                "auth_ref":  [
                    "r95"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/DebtSummaryofMaturitiesofAssumedDebtDetails":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_LongTermDebt",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the remainder of the fiscal year following the latest fiscal year.  Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
                            "label":  "Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year",
                            "terseLabel":  "Remainder of 2019"
                            }
                        }
                    },
                "localname":  "LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtSummaryofMaturitiesofAssumedDebtDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LongTermDebtNoncurrent":  {
                "auth_ref":  [
                    "r38"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  4.0,
                        "parentTag":  "us-gaap_Liabilities",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_LongTermDebt",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer.  Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper.  Excludes capital lease obligations.",
                            "label":  "Long-term Debt, Excluding Current Maturities",
                            "terseLabel":  "Long-term debt",
                            "verboseLabel":  "Total long-term debt"
                            }
                        }
                    },
                "localname":  "LongTermDebtNoncurrent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS",
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LongTermDebtTextBlock":  {
                "auth_ref":  [
                    "r185"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The entire disclosure for long-term debt.",
                            "label":  "Long-term Debt [Text Block]",
                            "terseLabel":  "Debt"
                            }
                        }
                    },
                "localname":  "LongTermDebtTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/Debt"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_LongTermInvestments":  {
                "auth_ref":  [
                    "r27"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_Assets",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).",
                            "label":  "Long-term Investments",
                            "terseLabel":  "Long-term investments"
                            }
                        }
                    },
                "localname":  "LongTermInvestments",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LongtermDebtTypeAxis":  {
                "auth_ref":  [
                    "r38"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by type of long-term debt.",
                            "label":  "Long-term Debt, Type [Axis]",
                            "terseLabel":  "Long-term Debt, Type [Axis]"
                            }
                        }
                    },
                "localname":  "LongtermDebtTypeAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtNarrativeDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofEffectiveInterestRatesDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofInterestExpenseDetails",
                    "http://www.shutterfly.com/role/DebtSummaryofMaturitiesofAssumedDebtDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_LongtermDebtTypeDomain":  {
                "auth_ref":  [
                    "r38",
                    "r179"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Type of long-term debt arrangement, such as notes, line of credit, commercial paper, asset-based financing, project financing, letter of credit financing.  These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the company, if longer.",
                            "label":  "Long-term Debt, Type [Domain]",
                            "terseLabel":  "Long-term Debt, Type [Domain]"
                            }
                        }
                    },
                "localname":  "LongtermDebtTypeDomain",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtNarrativeDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofEffectiveInterestRatesDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofInterestExpenseDetails",
                    "http://www.shutterfly.com/role/DebtSummaryofMaturitiesofAssumedDebtDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_MaterialReconcilingItemsMember":  {
                "auth_ref":  [
                    "r118",
                    "r119"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Items used in reconciling reportable segments' amounts to consolidated amount.  Excludes corporate-level activity.",
                            "label":  "Segment Reconciling Items [Member]",
                            "terseLabel":  "Segment Reconciling Items"
                            }
                        }
                    },
                "localname":  "MaterialReconcilingItemsMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_MoneyMarketFundsMember":  {
                "auth_ref":  [
                    "r204"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Fund that invests in short-term money-market instruments, for example, but not limited to, commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and other highly liquid securities.",
                            "label":  "Money Market Funds [Member]",
                            "terseLabel":  "Money market funds"
                            }
                        }
                    },
                "localname":  "MoneyMarketFundsMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/FairValueMeasurementCashEquivalentsandInvestmentsDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_NetCashProvidedByUsedInFinancingActivities":  {
                "auth_ref":  [
                    "r84"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of cash inflow (outflow) from financing activities, including discontinued operations.  Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.",
                            "label":  "Net Cash Provided by (Used in) Financing Activities",
                            "terseLabel":  "Net cash provided by financing activities",
                            "totalLabel":  "Net cash (used in) provided by financing activities"
                            }
                        }
                    },
                "localname":  "NetCashProvidedByUsedInFinancingActivities",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS",
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Net Cash Provided by (Used in) Financing Activities [Abstract]",
                            "terseLabel":  "Cash flows from financing activities:"
                            }
                        }
                    },
                "localname":  "NetCashProvidedByUsedInFinancingActivitiesAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_NetCashProvidedByUsedInInvestingActivities":  {
                "auth_ref":  [
                    "r84"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of cash inflow (outflow) from investing activities, including discontinued operations.  Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.",
                            "label":  "Net Cash Provided by (Used in) Investing Activities",
                            "totalLabel":  "Net cash used in investing activities"
                            }
                        }
                    },
                "localname":  "NetCashProvidedByUsedInInvestingActivities",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Net Cash Provided by (Used in) Investing Activities [Abstract]",
                            "terseLabel":  "Cash flows from investing activities:"
                            }
                        }
                    },
                "localname":  "NetCashProvidedByUsedInInvestingActivitiesAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_NetCashProvidedByUsedInOperatingActivities":  {
                "auth_ref":  [
                    "r84",
                    "r85",
                    "r88"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease",
                        "weight":  1.0
                        }
                    },
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of cash inflow (outflow) from operating activities, including discontinued operations.  Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.",
                            "label":  "Net Cash Provided by (Used in) Operating Activities",
                            "terseLabel":  "Net cash used in operating activities",
                            "totalLabel":  "Net cash used in operating activities"
                            }
                        }
                    },
                "localname":  "NetCashProvidedByUsedInOperatingActivities",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS",
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Net Cash Provided by (Used in) Operating Activities [Abstract]",
                            "terseLabel":  "Cash flows from operating activities:"
                            }
                        }
                    },
                "localname":  "NetCashProvidedByUsedInOperatingActivitiesAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_NetIncomeLoss":  {
                "auth_ref":  [
                    "r57",
                    "r60",
                    "r64",
                    "r88",
                    "r105",
                    "r351",
                    "r366"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInOperatingActivities",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_ComprehensiveIncomeNetOfTax",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.",
                            "label":  "Net Income (Loss) Attributable to Parent",
                            "terseLabel":  "Net loss",
                            "totalLabel":  "Net loss"
                            }
                        }
                    },
                "localname":  "NetIncomeLoss",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS",
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS",
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS",
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY",
                    "http://www.shutterfly.com/role/NetLossPerShareDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_NetIncomeLossAvailableToCommonStockholdersDilutedAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Net Income (Loss) Available to Common Stockholders, Diluted [Abstract]",
                            "terseLabel":  "Numerator"
                            }
                        }
                    },
                "localname":  "NetIncomeLossAvailableToCommonStockholdersDilutedAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/NetLossPerShareDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_NetRentableArea":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Net rentable area for properties owned.",
                            "label":  "Net Rentable Area",
                            "terseLabel":  "Net area (in sqft)"
                            }
                        }
                    },
                "localname":  "NetRentableArea",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAssetsHeldforSaleDetails"
                    ],
                "xbrltype":  "areaItemType"
                },
            "us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantification":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS":  {
                        "order":  6.0,
                        "parentTag":  "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Represents the quantification of the effect of adopting the new accounting standard or change in accounting principle expected by the entity to have a significant effect on the entity's financial statements.",
                            "label":  "New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification",
                            "terseLabel":  "Impact of adoption of new accounting standard"
                            }
                        }
                    },
                "localname":  "NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantification",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting.  Includes, but is not limited to, quantification of the expected or actual impact.",
                            "label":  "New Accounting Pronouncements, Policy [Policy Text Block]",
                            "terseLabel":  "Recently Adopted and Pending Adoption Accounting Pronouncements"
                            }
                        }
                    },
                "localname":  "NewAccountingPronouncementsPolicyPolicyTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesPolicies"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_NotesPayableOtherPayablesMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "A written promise to pay a note to a third party.",
                            "label":  "Notes Payable, Other Payables [Member]",
                            "terseLabel":  "Notes Payable"
                            }
                        }
                    },
                "localname":  "NotesPayableOtherPayablesMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtNarrativeDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails",
                    "http://www.shutterfly.com/role/DebtSummaryofMaturitiesofAssumedDebtDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_NumberOfOperatingSegments":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Number of operating segments.  An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available.  An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.",
                            "label":  "Number of Operating Segments",
                            "terseLabel":  "Number of operating segments (segment)"
                            }
                        }
                    },
                "localname":  "NumberOfOperatingSegments",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "integerItemType"
                },
            "us-gaap_OperatingExpenses":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services.  Includes selling, general and administrative expense.",
                            "label":  "Operating Expenses",
                            "totalLabel":  "Total operating expenses"
                            }
                        }
                    },
                "localname":  "OperatingExpenses",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OperatingExpensesAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Operating Expenses [Abstract]",
                            "terseLabel":  "Operating expenses:"
                            }
                        }
                    },
                "localname":  "OperatingExpensesAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_OperatingIncomeLoss":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The net result for the period of deducting operating expenses from operating revenues.",
                            "label":  "Operating Income (Loss)",
                            "terseLabel":  "Loss from operations",
                            "totalLabel":  "Loss from operations"
                            }
                        }
                    },
                "localname":  "OperatingIncomeLoss",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS",
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OperatingLeaseCost":  {
                "auth_ref":  [
                    "r324",
                    "r333"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesComponentsofLeaseCostDetails":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_LeaseCost",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term.  Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.",
                            "label":  "Operating Lease, Cost",
                            "terseLabel":  "Operating lease cost"
                            }
                        }
                    },
                "localname":  "OperatingLeaseCost",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesComponentsofLeaseCostDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Operating Lease Liabilities, Payments Due [Abstract]",
                            "terseLabel":  "Operating Lease Liabilities, Payments Due [Abstract]"
                            }
                        }
                    },
                "localname":  "OperatingLeaseLiabilitiesPaymentsDueAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_OperatingLeaseLiability":  {
                "auth_ref":  [
                    "r315"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Present value of lessee's discounted obligation for lease payments from operating lease.",
                            "label":  "Operating Lease, Liability",
                            "verboseLabel":  "Present value of lease liabilities"
                            }
                        }
                    },
                "localname":  "OperatingLeaseLiability",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsofLeasesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OperatingLeaseLiabilityCurrent":  {
                "auth_ref":  [
                    "r315"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  4.0,
                        "parentTag":  "us-gaap_LiabilitiesCurrent",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/LeasesROUAssetsandLeaseLiabilitiesDetails":  {
                        "order":  1.0,
                        "parentTag":  "sfly_LeaseLiability",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.",
                            "label":  "Operating Lease, Liability, Current",
                            "terseLabel":  "Operating lease liabilities, current portion"
                            }
                        }
                    },
                "localname":  "OperatingLeaseLiabilityCurrent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS",
                    "http://www.shutterfly.com/role/LeasesNarrativeDetails",
                    "http://www.shutterfly.com/role/LeasesROUAssetsandLeaseLiabilitiesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OperatingLeaseLiabilityNoncurrent":  {
                "auth_ref":  [
                    "r315"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_Liabilities",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/LeasesROUAssetsandLeaseLiabilitiesDetails":  {
                        "order":  3.0,
                        "parentTag":  "sfly_LeaseLiability",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.",
                            "label":  "Operating Lease, Liability, Noncurrent",
                            "terseLabel":  "Operating lease liabilities"
                            }
                        }
                    },
                "localname":  "OperatingLeaseLiabilityNoncurrent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS",
                    "http://www.shutterfly.com/role/LeasesROUAssetsandLeaseLiabilitiesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OperatingLeasePayments":  {
                "auth_ref":  [
                    "r319",
                    "r327"
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.",
                            "label":  "Operating Lease, Payments",
                            "terseLabel":  "Operating cash flows from operating leases"
                            }
                        }
                    },
                "localname":  "OperatingLeasePayments",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesSupplementalCashFlowInformationDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OperatingLeaseRightOfUseAsset":  {
                "auth_ref":  [
                    "r314"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesROUAssetsandLeaseLiabilitiesDetails":  {
                        "order":  2.0,
                        "parentTag":  "sfly_LeasesRightofUseAsset",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of lessee's right to use underlying asset under operating lease.",
                            "label":  "Operating Lease, Right-of-Use Asset",
                            "terseLabel":  "Operating lease, right-of-use asset"
                            }
                        }
                    },
                "localname":  "OperatingLeaseRightOfUseAsset",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesROUAssetsandLeaseLiabilitiesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent":  {
                "auth_ref":  [
                    "r330",
                    "r333"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Weighted average discount rate for operating lease calculated at point in time.",
                            "label":  "Operating Lease, Weighted Average Discount Rate, Percent",
                            "terseLabel":  "Operating leases, weighted average discount rate, percent"
                            }
                        }
                    },
                "localname":  "OperatingLeaseWeightedAverageDiscountRatePercent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesLeaseTermandDiscountRateDetails"
                    ],
                "xbrltype":  "percentItemType"
                },
            "us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1":  {
                "auth_ref":  [
                    "r329",
                    "r333"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
                            "label":  "Operating Lease, Weighted Average Remaining Lease Term",
                            "terseLabel":  "Operating lease, weighted average remaining lease term"
                            }
                        }
                    },
                "localname":  "OperatingLeaseWeightedAverageRemainingLeaseTerm1",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesLeaseTermandDiscountRateDetails"
                    ],
                "xbrltype":  "durationItemType"
                },
            "us-gaap_OperatingLeasesFutureMinimumPaymentsDue":  {
                "auth_ref":  [
                    "r310",
                    "r311"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.",
                            "label":  "Operating Leases, Future Minimum Payments Due",
                            "totalLabel":  "Total lease payments"
                            }
                        }
                    },
                "localname":  "OperatingLeasesFutureMinimumPaymentsDue",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]",
                            "terseLabel":  "Operating leases"
                            }
                        }
                    },
                "localname":  "OperatingLeasesFutureMinimumPaymentsDueAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent":  {
                "auth_ref":  [
                    "r310",
                    "r311"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_OperatingLeasesFutureMinimumPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year.  Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
                            "label":  "Operating Leases, Future Minimum Payments Due, Next Twelve Months",
                            "terseLabel":  "2019"
                            }
                        }
                    },
                "localname":  "OperatingLeasesFutureMinimumPaymentsDueCurrent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears":  {
                "auth_ref":  [
                    "r310",
                    "r311"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails":  {
                        "order":  5.0,
                        "parentTag":  "us-gaap_OperatingLeasesFutureMinimumPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year.  Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
                            "label":  "Operating Leases, Future Minimum Payments, Due in Five Years",
                            "terseLabel":  "2023"
                            }
                        }
                    },
                "localname":  "OperatingLeasesFutureMinimumPaymentsDueInFiveYears",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears":  {
                "auth_ref":  [
                    "r310",
                    "r311"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails":  {
                        "order":  4.0,
                        "parentTag":  "us-gaap_OperatingLeasesFutureMinimumPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year.  Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
                            "label":  "Operating Leases, Future Minimum Payments, Due in Four Years",
                            "terseLabel":  "2022"
                            }
                        }
                    },
                "localname":  "OperatingLeasesFutureMinimumPaymentsDueInFourYears",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears":  {
                "auth_ref":  [
                    "r310",
                    "r311"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_OperatingLeasesFutureMinimumPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year.  Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
                            "label":  "Operating Leases, Future Minimum Payments, Due in Three Years",
                            "terseLabel":  "2021"
                            }
                        }
                    },
                "localname":  "OperatingLeasesFutureMinimumPaymentsDueInThreeYears",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears":  {
                "auth_ref":  [
                    "r310",
                    "r311"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_OperatingLeasesFutureMinimumPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year.  Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
                            "label":  "Operating Leases, Future Minimum Payments, Due in Two Years",
                            "terseLabel":  "2020"
                            }
                        }
                    },
                "localname":  "OperatingLeasesFutureMinimumPaymentsDueInTwoYears",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter":  {
                "auth_ref":  [
                    "r310",
                    "r311"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails":  {
                        "order":  6.0,
                        "parentTag":  "us-gaap_OperatingLeasesFutureMinimumPaymentsDue",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year.  Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
                            "label":  "Operating Leases, Future Minimum Payments, Due Thereafter",
                            "terseLabel":  "Thereafter"
                            }
                        }
                    },
                "localname":  "OperatingLeasesFutureMinimumPaymentsDueThereafter",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesFutureMinimumPaymentsUnderNonCancelableLeasesandBuildtoSuiteArrangementsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OperatingSegmentsMember":  {
                "auth_ref":  [
                    "r109",
                    "r120"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Identifies components of an entity that engage in business activities from which they may earn revenue and incur expenses, including transactions with other components of the same entity.",
                            "label":  "Operating Segments [Member]",
                            "terseLabel":  "Operating Segments"
                            }
                        }
                    },
                "localname":  "OperatingSegmentsMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails",
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_OtherAccruedLiabilitiesCurrent":  {
                "auth_ref":  [
                    "r6",
                    "r7",
                    "r8",
                    "r35"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccruedLiabilitiesDetails":  {
                        "order":  7.0,
                        "parentTag":  "us-gaap_AccruedLiabilitiesCurrent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.",
                            "label":  "Other Accrued Liabilities, Current",
                            "terseLabel":  "Accrued other"
                            }
                        }
                    },
                "localname":  "OtherAccruedLiabilitiesCurrent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccruedLiabilitiesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OtherAssetsMember":  {
                "auth_ref":  [
                    "r276",
                    "r289"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Primary financial statement caption encompassing other assets.",
                            "label":  "Other Assets [Member]",
                            "terseLabel":  "Other assets"
                            }
                        }
                    },
                "localname":  "OtherAssetsMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_OtherAssetsNoncurrent":  {
                "auth_ref":  [
                    "r30"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  6.0,
                        "parentTag":  "us-gaap_Assets",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of noncurrent assets classified as other.",
                            "label":  "Other Assets, Noncurrent",
                            "terseLabel":  "Other assets"
                            }
                        }
                    },
                "localname":  "OtherAssetsNoncurrent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent":  {
                "auth_ref":  [
                    "r264",
                    "r265",
                    "r266"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS":  {
                        "order":  5.0,
                        "parentTag":  "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature, attributable to parent entity.",
                            "label":  "Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent",
                            "terseLabel":  "Foreign currency translation gains (losses)"
                            }
                        }
                    },
                "localname":  "OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax":  {
                "auth_ref":  [
                    "r49"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount before tax, after reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities.  Excludes amounts related to other than temporary impairment (OTTI) loss.",
                            "label":  "Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, before Tax",
                            "terseLabel":  "Unrealized net gains (losses) on investments"
                            }
                        }
                    },
                "localname":  "OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax":  {
                "auth_ref":  [
                    "r49"
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities.  Excludes amounts related to other than temporary impairment (OTTI) loss.",
                            "label":  "Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax",
                            "terseLabel":  "Unrealized gain (loss) on investments, net of tax"
                            }
                        }
                    },
                "localname":  "OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax":  {
                "auth_ref":  [
                    "r48",
                    "r52"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount, before tax and after reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness.",
                            "label":  "Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax",
                            "terseLabel":  "Unrealized (losses) gains on cash flow hedges"
                            }
                        }
                    },
                "localname":  "OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS",
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax":  {
                "auth_ref":  [
                    "r53"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS":  {
                        "order":  4.0,
                        "parentTag":  "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount, after reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.",
                            "label":  "Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax",
                            "negatedTerseLabel":  "Tax benefit (expense) on unrealized (losses) gains on cash flow hedges"
                            }
                        }
                    },
                "localname":  "OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax":  {
                "auth_ref":  [
                    "r48"
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount after tax and reclassification adjustments, of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).",
                            "label":  "Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax",
                            "terseLabel":  "Unrealized (loss) gain on cash flow hedges, net of tax"
                            }
                        }
                    },
                "localname":  "OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Other Comprehensive Income (Loss), Net of Tax [Abstract]",
                            "terseLabel":  "Other comprehensive (loss) income, net of reclassification adjustments:"
                            }
                        }
                    },
                "localname":  "OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent":  {
                "auth_ref":  [
                    "r58",
                    "r61",
                    "r264",
                    "r265",
                    "r266"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_ComprehensiveIncomeNetOfTax",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount after tax of other comprehensive income (loss) attributable to parent entity.",
                            "label":  "Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent",
                            "totalLabel":  "Other comprehensive (loss) income, net of tax"
                            }
                        }
                    },
                "localname":  "OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax":  {
                "auth_ref":  [
                    "r50",
                    "r53"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of tax expense (benefit) before reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities.",
                            "label":  "Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, Tax",
                            "negatedTerseLabel":  "Tax (expense) benefit on unrealized net gains (losses) on investments"
                            }
                        }
                    },
                "localname":  "OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OtherIntangibleAssetsMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Intangible assets classified as other.",
                            "label":  "Other Intangible Assets [Member]",
                            "terseLabel":  "Other"
                            }
                        }
                    },
                "localname":  "OtherIntangibleAssetsMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_OtherLiabilitiesMember":  {
                "auth_ref":  [
                    "r276",
                    "r289"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Primary financial statement caption encompassing other liabilities.",
                            "label":  "Other Liabilities [Member]",
                            "terseLabel":  "Other liabilities"
                            }
                        }
                    },
                "localname":  "OtherLiabilitiesMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_OtherLiabilitiesNoncurrent":  {
                "auth_ref":  [
                    "r39"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsOtherLiabilitiesDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        },
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_Liabilities",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.",
                            "label":  "Other Liabilities, Noncurrent",
                            "terseLabel":  "Other liabilities",
                            "totalLabel":  "Other liabilities"
                            }
                        }
                    },
                "localname":  "OtherLiabilitiesNoncurrent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsOtherLiabilitiesDetails",
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OtherLiabilitiesNoncurrentAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Other Liabilities, Noncurrent [Abstract]",
                            "verboseLabel":  "Other Liabilities, Noncurrent [Abstract]"
                            }
                        }
                    },
                "localname":  "OtherLiabilitiesNoncurrentAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsOtherLiabilitiesDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_OtherLongTermDebtNoncurrent":  {
                "auth_ref":  [
                    "r38"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsOtherLiabilitiesDetails":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_OtherLiabilitiesNoncurrent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of long-term debt classified as other, payable after one year or the operating cycle, if longer.",
                            "label":  "Other Long-term Debt, Noncurrent",
                            "terseLabel":  "Financing obligations"
                            }
                        }
                    },
                "localname":  "OtherLongTermDebtNoncurrent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsOtherLiabilitiesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OtherNoncashIncomeExpense":  {
                "auth_ref":  [
                    "r88"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  9.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInOperatingActivities",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of income (expense) included in net income that results in no cash inflow (outflow), classified as other.",
                            "label":  "Other Noncash Income (Expense)",
                            "negatedTerseLabel":  "Other"
                            }
                        }
                    },
                "localname":  "OtherNoncashIncomeExpense",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OtherRestructuringMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Restructuring and related activities classified as other.",
                            "label":  "Other Restructuring [Member]",
                            "terseLabel":  "Other"
                            }
                        }
                    },
                "localname":  "OtherRestructuringMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/RestructuringNarrativeDetails",
                    "http://www.shutterfly.com/role/RestructuringRestructuringReserveActivitiesDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_OtherSundryLiabilitiesNoncurrent":  {
                "auth_ref":  [
                    "r15",
                    "r343",
                    "r359"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsOtherLiabilitiesDetails":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_OtherLiabilitiesNoncurrent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Obligations not otherwise itemized or categorized in the footnotes to the financial statements that are expected to be paid after one year (or the normal operating cycle, if longer), from the balance sheet date.",
                            "label":  "Other Sundry Liabilities, Noncurrent",
                            "terseLabel":  "Other liabilities"
                            }
                        }
                    },
                "localname":  "OtherSundryLiabilitiesNoncurrent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsOtherLiabilitiesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale":  {
                "auth_ref":  [
                    "r127"
                    ],
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of other-than-temporary impairment (OTTI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), recognized in earnings and other comprehensive loss (OCI).",
                            "label":  "Other-than-temporary Impairment Loss, Debt Securities, Available-for-sale",
                            "terseLabel":  "Impairments recorded on available-for-sale investments"
                            }
                        }
                    },
                "localname":  "OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/InvestmentsScheduleofEstimatedFairValueDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_PaymentsForRestructuring":  {
                "auth_ref":  [
                    "r83",
                    "r161"
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of cash payments made as the result of exit or disposal activities.  Excludes payments associated with a discontinued operation or an asset retirement obligation.",
                            "label":  "Payments for Restructuring",
                            "negatedLabel":  "Cash payments",
                            "terseLabel":  "Cash payments for restructuring"
                            }
                        }
                    },
                "localname":  "PaymentsForRestructuring",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/RestructuringNarrativeDetails",
                    "http://www.shutterfly.com/role/RestructuringRestructuringReserveActivitiesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_PaymentsOfDebtExtinguishmentCosts":  {
                "auth_ref":  [
                    "r82"
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of cash outflow for cost from early extinguishment and prepayment of debt.  Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment.  Excludes accrued interest.",
                            "label":  "Payment for Debt Extinguishment or Debt Prepayment Cost",
                            "terseLabel":  "Prepaid principal amount"
                            }
                        }
                    },
                "localname":  "PaymentsOfDebtExtinguishmentCosts",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtNarrativeDetails",
                    "http://www.shutterfly.com/role/DebtScheduleofEffectiveInterestRatesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_PaymentsToAcquireBusinessesGross":  {
                "auth_ref":  [
                    "r76",
                    "r262"
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The cash outflow associated with the acquisition of business during the period.  The cash portion only of the acquisition price.",
                            "label":  "Payments to Acquire Businesses, Gross",
                            "terseLabel":  "All-cash purchase price, subject to certain adjustments"
                            }
                        }
                    },
                "localname":  "PaymentsToAcquireBusinessesGross",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/AcquisitionNarrativeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired":  {
                "auth_ref":  [
                    "r76"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  6.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInInvestingActivities",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.",
                            "label":  "Payments to Acquire Businesses, Net of Cash Acquired",
                            "negatedLabel":  "Acquisition of business, net of cash acquired"
                            }
                        }
                    },
                "localname":  "PaymentsToAcquireBusinessesNetOfCashAcquired",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_PaymentsToAcquireInvestments":  {
                "auth_ref":  [
                    "r78"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInInvestingActivities",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The cash outflow associated with the purchase of all investments (debt, security, other) during the period.",
                            "label":  "Payments to Acquire Investments",
                            "negatedTerseLabel":  "Purchases of investments"
                            }
                        }
                    },
                "localname":  "PaymentsToAcquireInvestments",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_PaymentsToAcquirePropertyPlantAndEquipment":  {
                "auth_ref":  [
                    "r77"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInInvestingActivities",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.",
                            "label":  "Payments to Acquire Property, Plant, and Equipment",
                            "negatedLabel":  "Purchases of property and equipment"
                            }
                        }
                    },
                "localname":  "PaymentsToAcquirePropertyPlantAndEquipment",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_PaymentsToAcquireSoftware":  {
                "auth_ref":  [
                    "r77"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInInvestingActivities",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The cash outflow associated with the acquisition from vendors of software programs or applications for internal use (that is, not to be sold, leased or otherwise marketed to others) that qualify for capitalization.",
                            "label":  "Payments to Acquire Software",
                            "negatedLabel":  "Capitalization of software and website development costs"
                            }
                        }
                    },
                "localname":  "PaymentsToAcquireSoftware",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_PlanNameAxis":  {
                "auth_ref":  [
                    "r210",
                    "r237"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by plan name pertaining to equity-based compensation arrangements.",
                            "label":  "Plan Name [Axis]",
                            "terseLabel":  "Plan Name [Axis]"
                            }
                        }
                    },
                "localname":  "PlanNameAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_PlanNameDomain":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Name of the equity-based compensation arrangement plan.",
                            "label":  "Plan Name [Domain]",
                            "terseLabel":  "Plan Name [Domain]"
                            }
                        }
                    },
                "localname":  "PlanNameDomain",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_PortionAtFairValueFairValueDisclosureMember":  {
                "auth_ref":  [
                    "r300"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Measured at fair value for financial reporting purposes.",
                            "label":  "Portion at Fair Value Measurement [Member]",
                            "terseLabel":  "Portion at Fair Value Measurement"
                            }
                        }
                    },
                "localname":  "PortionAtFairValueFairValueDisclosureMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/FairValueMeasurementBorrowingsDetails",
                    "http://www.shutterfly.com/role/FairValueMeasurementDerivativeLiabilitiesAssetsDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_PrepaidExpenseAndOtherAssetsCurrent":  {
                "auth_ref":  [
                    "r4",
                    "r24",
                    "r25"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPrepaidExpensesandOtherCurrentAssetsDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        },
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  5.0,
                        "parentTag":  "us-gaap_AssetsCurrent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.",
                            "label":  "Prepaid Expense and Other Assets, Current",
                            "terseLabel":  "Prepaid expenses and other current assets",
                            "totalLabel":  "Total prepaid expenses and other current assets"
                            }
                        }
                    },
                "localname":  "PrepaidExpenseAndOtherAssetsCurrent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPrepaidExpensesandOtherCurrentAssetsDetails",
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_PrepaidExpenseAndOtherAssetsCurrentAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Prepaid Expense and Other Assets, Current [Abstract]",
                            "verboseLabel":  "Prepaid Expense and Other Assets, Current [Abstract]"
                            }
                        }
                    },
                "localname":  "PrepaidExpenseAndOtherAssetsCurrentAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPrepaidExpensesandOtherCurrentAssetsDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_ProceedsFromDebtNetOfIssuanceCosts":  {
                "auth_ref":  [
                    "r80"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  4.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInFinancingActivities",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.",
                            "label":  "Proceeds from Debt, Net of Issuance Costs",
                            "terseLabel":  "Proceeds from borrowings, net of issuance costs"
                            }
                        }
                    },
                "localname":  "ProceedsFromDebtNetOfIssuanceCosts",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities":  {
                "auth_ref":  [
                    "r73",
                    "r74",
                    "r126"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  4.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInInvestingActivities",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of cash inflow from maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
                            "label":  "Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-sale",
                            "terseLabel":  "Proceeds from maturities of investments"
                            }
                        }
                    },
                "localname":  "ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt":  {
                "auth_ref":  [
                    "r73",
                    "r74",
                    "r126"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  7.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInInvestingActivities",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
                            "label":  "Proceeds from Sale of Debt Securities, Available-for-sale",
                            "terseLabel":  "Proceeds from sales of investments"
                            }
                        }
                    },
                "localname":  "ProceedsFromSaleOfAvailableForSaleSecuritiesDebt",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment":  {
                "auth_ref":  [
                    "r75"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  5.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInInvestingActivities",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.",
                            "label":  "Proceeds from Sale of Property, Plant, and Equipment",
                            "terseLabel":  "Proceeds from sales of property and equipment"
                            }
                        }
                    },
                "localname":  "ProceedsFromSaleOfPropertyPlantAndEquipment",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_ProceedsFromStockOptionsExercised":  {
                "auth_ref":  [
                    "r79",
                    "r238"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInFinancingActivities",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement.",
                            "label":  "Proceeds from Stock Options Exercised",
                            "terseLabel":  "Net cash proceeds from the exercise of stock options",
                            "verboseLabel":  "Proceeds from issuance of common stock upon exercise of stock options"
                            }
                        }
                    },
                "localname":  "ProceedsFromStockOptionsExercised",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS",
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_PropertyPlantAndEquipmentByTypeAxis":  {
                "auth_ref":  [
                    "r29",
                    "r155"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by type of long-lived, physical assets used to produce goods and services and not intended for resale.",
                            "label":  "Property, Plant and Equipment, Type [Axis]",
                            "verboseLabel":  "Property, Plant and Equipment, Type [Axis]"
                            }
                        }
                    },
                "localname":  "PropertyPlantAndEquipmentByTypeAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPropertyandEquipmentNetDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_PropertyPlantAndEquipmentGross":  {
                "auth_ref":  [
                    "r28",
                    "r153"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPropertyandEquipmentNetDetails":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_PropertyPlantAndEquipmentNet",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale.  Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.",
                            "label":  "Property, Plant and Equipment, Gross",
                            "terseLabel":  "Gross property and equipment"
                            }
                        }
                    },
                "localname":  "PropertyPlantAndEquipmentGross",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPropertyandEquipmentNetDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_PropertyPlantAndEquipmentLineItems":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Line items represent financial concepts included in a table.  These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
                            "label":  "Property, Plant and Equipment [Line Items]",
                            "verboseLabel":  "Property, Plant and Equipment [Line Items]"
                            }
                        }
                    },
                "localname":  "PropertyPlantAndEquipmentLineItems",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPropertyandEquipmentNetDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_PropertyPlantAndEquipmentNet":  {
                "auth_ref":  [
                    "r9",
                    "r10",
                    "r155",
                    "r363"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPropertyandEquipmentNetDetails":  {
                        "order":  null,
                        "parentTag":  null,
                        "root":  true,
                        "weight":  null
                        },
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_Assets",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale.  Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.",
                            "label":  "Property, Plant and Equipment, Net",
                            "totalLabel":  "Property and equipment, net",
                            "verboseLabel":  "Property and equipment, net"
                            }
                        }
                    },
                "localname":  "PropertyPlantAndEquipmentNet",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPropertyandEquipmentNetDetails",
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_PropertyPlantAndEquipmentTextBlock":  {
                "auth_ref":  [
                    "r9",
                    "r155"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale.  Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.",
                            "label":  "Property, Plant and Equipment [Table Text Block]",
                            "terseLabel":  "Schedule of property and equipment"
                            }
                        }
                    },
                "localname":  "PropertyPlantAndEquipmentTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_PropertyPlantAndEquipmentTypeDomain":  {
                "auth_ref":  [
                    "r9",
                    "r153"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Listing of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.  Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.",
                            "label":  "Property, Plant and Equipment, Type [Domain]",
                            "verboseLabel":  "Property, Plant and Equipment, Type [Domain]"
                            }
                        }
                    },
                "localname":  "PropertyPlantAndEquipmentTypeDomain",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPropertyandEquipmentNetDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_PurchaseObligation":  {
                "auth_ref":  [
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.",
                            "label":  "Purchase Obligation",
                            "terseLabel":  "Financing obligation"
                            }
                        }
                    },
                "localname":  "PurchaseObligation",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTextBlock":  {
                "auth_ref":  [
                    "r117",
                    "r119"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of the reconciliation of profit (loss) from reportable segments to the consolidated income (loss) before income tax expense (benefit) and discontinued operations.  Includes, but is not limited to, reconciliation after income tax if income tax is allocated to the reportable segment.",
                            "label":  "Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]",
                            "terseLabel":  "Reconciliation of operating segments to consolidated"
                            }
                        }
                    },
                "localname":  "ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReportingTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_ReconciliationOfRevenueFromSegmentsToConsolidatedTable":  {
                "auth_ref":  [
                    "r116",
                    "r119"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Identification, description, and amounts of all significant reconciling items in the reconciliation of total revenues from reportable segments to the entity's consolidated revenues.",
                            "label":  "Reconciliation of Revenue from Segments to Consolidated [Table]",
                            "terseLabel":  "Reconciliation of Revenue from Segments to Consolidated [Table]"
                            }
                        }
                    },
                "localname":  "ReconciliationOfRevenueFromSegmentsToConsolidatedTable",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_RepaymentsOfDebt":  {
                "auth_ref":  [
                    "r81"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInFinancingActivities",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The cash outflow during the period from the repayment of aggregate short-term and long-term debt.  Excludes payment of capital lease obligations.",
                            "label":  "Repayments of Debt",
                            "negatedLabel":  "Principal payments of borrowings"
                            }
                        }
                    },
                "localname":  "RepaymentsOfDebt",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_RestrictedInvestmentsCurrent":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPrepaidExpensesandOtherCurrentAssetsDetails":  {
                        "order":  3.0,
                        "parentTag":  "us-gaap_PrepaidExpenseAndOtherAssetsCurrent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "This element represents the current portion of investments which are not defined as or included in marketable (debt, equity, or other) securities that are pledged or subject to withdrawal restrictions.",
                            "label":  "Restricted Investments, Current",
                            "terseLabel":  "Restricted certificate of deposit"
                            }
                        }
                    },
                "localname":  "RestrictedInvestmentsCurrent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPrepaidExpensesandOtherCurrentAssetsDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_RestrictedStockUnitsRSUMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Share instrument which is convertible to stock or an equivalent amount of cash, after a specified period of time or when specified performance conditions are met.",
                            "label":  "Restricted Stock Units (RSUs) [Member]",
                            "terseLabel":  "Restricted Stock Units (RSUs)"
                            }
                        }
                    },
                "localname":  "RestrictedStockUnitsRSUMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationRestrictedStockUnitActivityDetails",
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_RestructuringAndRelatedActivitiesAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Restructuring and Related Activities [Abstract]"
                            }
                        }
                    },
                "localname":  "RestructuringAndRelatedActivitiesAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "xbrltype":  "stringItemType"
                },
            "us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock":  {
                "auth_ref":  [
                    "r172"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The entire disclosure for restructuring and related activities.  Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled.",
                            "label":  "Restructuring and Related Activities Disclosure [Text Block]",
                            "terseLabel":  "Restructuring"
                            }
                        }
                    },
                "localname":  "RestructuringAndRelatedActivitiesDisclosureTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/Restructuring"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_RestructuringAndRelatedCostExpectedCost1":  {
                "auth_ref":  [
                    "r160",
                    "r162",
                    "r169",
                    "r171"
                    ],
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount expected to be recognized in earnings for the specified restructuring cost.",
                            "label":  "Restructuring and Related Cost, Expected Cost",
                            "terseLabel":  "Restructuring costs, expected cost"
                            }
                        }
                    },
                "localname":  "RestructuringAndRelatedCostExpectedCost1",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/RestructuringNarrativeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_RestructuringAndRelatedCostIncurredCost":  {
                "auth_ref":  [
                    "r160",
                    "r162",
                    "r169",
                    "r171"
                    ],
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost.",
                            "label":  "Restructuring and Related Cost, Incurred Cost",
                            "terseLabel":  "Restructuring charges incurred"
                            }
                        }
                    },
                "localname":  "RestructuringAndRelatedCostIncurredCost",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/RestructuringNarrativeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_RestructuringCharges":  {
                "auth_ref":  [
                    "r87",
                    "r159",
                    "r165",
                    "r170"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS":  {
                        "order":  4.0,
                        "parentTag":  "us-gaap_OperatingExpenses",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails":  {
                        "order":  6.0,
                        "parentTag":  "us-gaap_OperatingIncomeLoss",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of expenses associated with exit or disposal activities pursuant to an authorized plan.  Excludes expenses related to a discontinued operation or an asset retirement obligation.",
                            "label":  "Restructuring Charges",
                            "negatedTerseLabel":  "Restructuring",
                            "terseLabel":  "Restructuring"
                            }
                        }
                    },
                "localname":  "RestructuringCharges",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS",
                    "http://www.shutterfly.com/role/RestructuringNarrativeDetails",
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_RestructuringCostAndReserveAxis":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by type of restructuring cost.",
                            "label":  "Restructuring Type [Axis]",
                            "terseLabel":  "Restructuring Type [Axis]"
                            }
                        }
                    },
                "localname":  "RestructuringCostAndReserveAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/RestructuringNarrativeDetails",
                    "http://www.shutterfly.com/role/RestructuringRestructuringReserveActivitiesDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_RestructuringCostAndReserveLineItems":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Line items represent financial concepts included in a table.  These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
                            "label":  "Restructuring Cost and Reserve [Line Items]",
                            "terseLabel":  "Restructuring Cost and Reserve [Line Items]"
                            }
                        }
                    },
                "localname":  "RestructuringCostAndReserveLineItems",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/RestructuringNarrativeDetails",
                    "http://www.shutterfly.com/role/RestructuringRestructuringReserveActivitiesDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_RestructuringCosts":  {
                "auth_ref":  [
                    "r87"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  8.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInOperatingActivities",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan.  Excludes expenses related to a discontinued operation or an asset retirement obligation.",
                            "label":  "Restructuring Costs",
                            "terseLabel":  "Restructuring"
                            }
                        }
                    },
                "localname":  "RestructuringCosts",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_RestructuringPlanAxis":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by individual restructuring plan.",
                            "label":  "Restructuring Plan [Axis]",
                            "terseLabel":  "Restructuring Plan [Axis]"
                            }
                        }
                    },
                "localname":  "RestructuringPlanAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/RestructuringNarrativeDetails",
                    "http://www.shutterfly.com/role/RestructuringRestructuringReserveActivitiesDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_RestructuringPlanDomain":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Identification of the individual restructuring plans.",
                            "label":  "Restructuring Plan [Domain]",
                            "terseLabel":  "Restructuring Plan [Domain]"
                            }
                        }
                    },
                "localname":  "RestructuringPlanDomain",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/RestructuringNarrativeDetails",
                    "http://www.shutterfly.com/role/RestructuringRestructuringReserveActivitiesDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_RestructuringReserve":  {
                "auth_ref":  [
                    "r161",
                    "r167"
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.",
                            "label":  "Restructuring Reserve",
                            "periodEndLabel":  "Accrued liability, ending balance",
                            "periodStartLabel":  "Accrued liability, beginning balance"
                            }
                        }
                    },
                "localname":  "RestructuringReserve",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/RestructuringRestructuringReserveActivitiesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_RestructuringReserveRollForward":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
                            "label":  "Restructuring Reserve [Roll Forward]",
                            "terseLabel":  "Restructuring Reserve [Roll Forward]"
                            }
                        }
                    },
                "localname":  "RestructuringReserveRollForward",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/RestructuringRestructuringReserveActivitiesDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_RestructuringReserveSettledWithoutCash2":  {
                "auth_ref":  [
                    "r159",
                    "r166"
                    ],
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of decrease in the reserve for full or partial settlement through consideration other than cash.",
                            "label":  "Restructuring Reserve, Settled without Cash",
                            "negatedLabel":  "Non-cash adjustments",
                            "terseLabel":  "Non-cash adjustments"
                            }
                        }
                    },
                "localname":  "RestructuringReserveSettledWithoutCash2",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/RestructuringNarrativeDetails",
                    "http://www.shutterfly.com/role/RestructuringRestructuringReserveActivitiesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_RetainedEarningsAccumulatedDeficit":  {
                "auth_ref":  [
                    "r20",
                    "r191",
                    "r361"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  4.0,
                        "parentTag":  "us-gaap_StockholdersEquity",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The cumulative amount of the reporting entity's undistributed earnings or deficit.",
                            "label":  "Retained Earnings (Accumulated Deficit)",
                            "terseLabel":  "Accumulated deficit"
                            }
                        }
                    },
                "localname":  "RetainedEarningsAccumulatedDeficit",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_RetainedEarningsMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The cumulative amount of the reporting entity's undistributed earnings or deficit.",
                            "label":  "Retained Earnings [Member]",
                            "terseLabel":  "Accumulated deficit"
                            }
                        }
                    },
                "localname":  "RetainedEarningsMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY",
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_RevenueFromContractWithCustomerAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Revenue from Contract with Customer [Abstract]"
                            }
                        }
                    },
                "localname":  "RevenueFromContractWithCustomerAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "xbrltype":  "stringItemType"
                },
            "us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax":  {
                "auth_ref":  [
                    "r195",
                    "r196",
                    "r197"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_GrossProfit",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer.  Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.",
                            "label":  "Revenue from Contract with Customer, Excluding Assessed Tax",
                            "terseLabel":  "Net revenue"
                            }
                        }
                    },
                "localname":  "RevenueFromContractWithCustomerExcludingAssessedTax",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS",
                    "http://www.shutterfly.com/role/RevenuesConsumerRevenuesbyBrandDetails",
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails",
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_RevenueFromContractWithCustomerTextBlock":  {
                "auth_ref":  [
                    "r96",
                    "r203"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset.  Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer.  Excludes insurance and lease contracts.",
                            "label":  "Revenue from Contract with Customer [Text Block]",
                            "terseLabel":  "Revenues"
                            }
                        }
                    },
                "localname":  "RevenueFromContractWithCustomerTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/Revenues"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_RevolvingCreditFacilityMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Arrangement in which loan proceeds can continuously be obtained following repayments, but the total amount borrowed cannot exceed a specified maximum amount.",
                            "label":  "Revolving Credit Facility [Member]",
                            "terseLabel":  "Revolving credit facility"
                            }
                        }
                    },
                "localname":  "RevolvingCreditFacilityMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtNarrativeDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability":  {
                "auth_ref":  [
                    "r328",
                    "r333"
                    ],
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of increase in right-of-use asset obtained in exchange for finance lease liability.",
                            "label":  "Right-of-Use Asset Obtained in Exchange for Finance Lease Liability",
                            "terseLabel":  "ROU assets obtained in exchange for finance lease liabilities"
                            }
                        }
                    },
                "localname":  "RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS",
                    "http://www.shutterfly.com/role/LeasesSupplementalCashFlowInformationDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability":  {
                "auth_ref":  [
                    "r328",
                    "r333"
                    ],
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of increase in right-of-use asset obtained in exchange for operating lease liability.",
                            "label":  "Right-of-Use Asset Obtained in Exchange for Operating Lease Liability",
                            "terseLabel":  "ROU assets obtained in exchange for finance lease liabilities"
                            }
                        }
                    },
                "localname":  "RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesSupplementalCashFlowInformationDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_ScenarioForecastMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The reporting scenario used to indicate financial results forecast for a future period.",
                            "label":  "Scenario, Forecast [Member]",
                            "terseLabel":  "Forecast"
                            }
                        }
                    },
                "localname":  "ScenarioForecastMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_ScenarioUnspecifiedDomain":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Any scenario, that is, the particular reporting scenario is left unspecified.  Scenarios distinguish among different kinds of business reporting facts, as for example actual versus budgeted figures.",
                            "label":  "Scenario, Unspecified [Domain]",
                            "terseLabel":  "Scenario, Unspecified [Domain]"
                            }
                        }
                    },
                "localname":  "ScenarioUnspecifiedDomain",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of the components of accrued liabilities.",
                            "label":  "Schedule of Accrued Liabilities [Table Text Block]",
                            "terseLabel":  "Schedule of accrued liabilities"
                            }
                        }
                    },
                "localname":  "ScheduleOfAccruedLiabilitiesTableTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock":  {
                "auth_ref":  [
                    "r55"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of the components of accumulated other comprehensive income (loss).",
                            "label":  "Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]",
                            "terseLabel":  "Schedule of accumulated other comprehensive (loss) income"
                            }
                        }
                    },
                "localname":  "ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable":  {
                "auth_ref":  [
                    "r104"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Schedule for securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by Antidilutive Securities.",
                            "label":  "Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]",
                            "terseLabel":  "Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]"
                            }
                        }
                    },
                "localname":  "ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/NetLossPerShareNarrativeDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock":  {
                "auth_ref":  [
                    "r104"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.",
                            "label":  "Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]",
                            "terseLabel":  "Schedule of antidilutive securities excluded from computation of earnings per share"
                            }
                        }
                    },
                "localname":  "ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/NetLossPerShareTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Line items represent financial concepts included in a table.  These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
                            "label":  "Debt Securities, Available-for-sale [Line Items]",
                            "terseLabel":  "Debt Securities, Available-for-sale [Line Items]"
                            }
                        }
                    },
                "localname":  "ScheduleOfAvailableForSaleSecuritiesLineItems",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/InvestmentsScheduleofEstimatedFairValueDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable":  {
                "auth_ref":  [
                    "r253",
                    "r254"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Schedule reflecting each material business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities.",
                            "label":  "Schedule of Business Acquisitions, by Acquisition [Table]",
                            "terseLabel":  "Schedule of Business Acquisitions, by Acquisition [Table]"
                            }
                        }
                    },
                "localname":  "ScheduleOfBusinessAcquisitionsByAcquisitionTable",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/AcquisitionNarrativeDetails",
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_ScheduleOfDebtInstrumentsTextBlock":  {
                "auth_ref":  [
                    "r38",
                    "r92",
                    "r187",
                    "r188",
                    "r189",
                    "r190",
                    "r306",
                    "r307",
                    "r309",
                    "r355"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation.  These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.",
                            "label":  "Schedule of Long-term Debt Instruments [Table Text Block]",
                            "terseLabel":  "Schedule of long-term debt instruments"
                            }
                        }
                    },
                "localname":  "ScheduleOfDebtInstrumentsTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_ScheduleOfDerivativeInstrumentsEffectOnOtherComprehensiveIncomeLossTableTextBlock":  {
                "auth_ref":  [
                    "r282"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of the effective portion of the gains and losses on derivative instruments designated (and non-derivative instruments) designated and qualifying in cash flow hedges and net investment hedges that was recognized in other comprehensive income (loss) during the current period.",
                            "label":  "Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block]",
                            "terseLabel":  "Unrealized gains (losses) on derivative instruments designated as hedges included in other comprehensive (loss) income"
                            }
                        }
                    },
                "localname":  "ScheduleOfDerivativeInstrumentsEffectOnOtherComprehensiveIncomeLossTableTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock":  {
                "auth_ref":  [
                    "r281"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position.",
                            "label":  "Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]",
                            "terseLabel":  "Fair value of derivative instruments designated as hedges in the balance sheet"
                            }
                        }
                    },
                "localname":  "ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_ScheduleOfDerivativesInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock":  {
                "auth_ref":  [
                    "r278"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of derivative instruments (including nonderivative instruments that are designated and qualify as hedging instruments) of (a) the location and amount of gains and losses reported in the statement of financial performance and (b) the location and fair value amounts of the instruments reported in the statement of financial position.",
                            "label":  "Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block]",
                            "terseLabel":  "Interest expense (including the effects of the cash flow hedges) related to the portion of the initial term loan subject to the swap agreements"
                            }
                        }
                    },
                "localname":  "ScheduleOfDerivativesInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DerivativeFinancialInstrumentsTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock":  {
                "auth_ref":  [
                    "r105"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.",
                            "label":  "Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]",
                            "terseLabel":  "Summary of the net loss per share"
                            }
                        }
                    },
                "localname":  "ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/NetLossPerShareTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable":  {
                "auth_ref":  [
                    "r209",
                    "r234",
                    "r240"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Schedule that sets forth the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period.  This may include the reporting line for the costs and the amount capitalized and expensed.",
                            "label":  "Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table]",
                            "verboseLabel":  "Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table]"
                            }
                        }
                    },
                "localname":  "ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationExpenseDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock":  {
                "auth_ref":  [
                    "r209",
                    "r234",
                    "r240"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period.  This may include the reporting line for the costs and the amount capitalized and expensed.",
                            "label":  "Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]",
                            "terseLabel":  "Schedule of stock-based compensation expense"
                            }
                        }
                    },
                "localname":  "ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable":  {
                "auth_ref":  [
                    "r143",
                    "r147"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Schedule of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.",
                            "label":  "Schedule of Finite-Lived Intangible Assets [Table]",
                            "terseLabel":  "Schedule of Finite-Lived Intangible Assets [Table]"
                            }
                        }
                    },
                "localname":  "ScheduleOfFiniteLivedIntangibleAssetsTable",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock":  {
                "auth_ref":  [
                    "r143",
                    "r147"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment.",
                            "label":  "Schedule of Finite-Lived Intangible Assets [Table Text Block]",
                            "terseLabel":  "Schedule of intangible assets"
                            }
                        }
                    },
                "localname":  "ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_ScheduleOfGoodwillTable":  {
                "auth_ref":  [
                    "r139",
                    "r140"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Schedule of goodwill and the changes during the year due to acquisition, sale, impairment or for other reasons.",
                            "label":  "Schedule of Goodwill [Table]",
                            "terseLabel":  "Schedule of Goodwill [Table]"
                            }
                        }
                    },
                "localname":  "ScheduleOfGoodwillTable",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsGoodwillDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_ScheduleOfGoodwillTextBlock":  {
                "auth_ref":  [
                    "r139",
                    "r140"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.",
                            "label":  "Schedule of Goodwill [Table Text Block]",
                            "terseLabel":  "Schedule of goodwill"
                            }
                        }
                    },
                "localname":  "ScheduleOfGoodwillTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_ScheduleOfLongLivedAssetsHeldForSaleTable":  {
                "auth_ref":  [
                    "r1",
                    "r158"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Description and amounts of long lived assets held for sale.  Disclosure may include the description of the facts and circumstances leading to the expected disposal, manner and timing of disposal, the carrying value of the assets held for sale, the gain (loss) recognized in the income statement and the income statement caption that includes that gain (loss).",
                            "label":  "Schedule of Long Lived Assets Held-for-sale [Table]",
                            "terseLabel":  "Schedule of Long Lived Assets Held-for-sale [Table]"
                            }
                        }
                    },
                "localname":  "ScheduleOfLongLivedAssetsHeldForSaleTable",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAssetsHeldforSaleDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock":  {
                "auth_ref":  [
                    "r178"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented.",
                            "label":  "Schedule of Maturities of Long-term Debt [Table Text Block]",
                            "terseLabel":  "Schedule of maturities of assumed debt"
                            }
                        }
                    },
                "localname":  "ScheduleOfMaturitiesOfLongTermDebtTableTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock":  {
                "auth_ref":  [
                    "r219"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of the changes in outstanding nonvested restricted stock units.",
                            "label":  "Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]",
                            "terseLabel":  "Summary of company restricted stock unit activity"
                            }
                        }
                    },
                "localname":  "ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_ScheduleOfPropertyPlantAndEquipmentTable":  {
                "auth_ref":  [
                    "r29",
                    "r155"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Disclosure of information about physical assets used in the normal conduct of business and not intended for resale.  Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.",
                            "label":  "Property, Plant and Equipment [Table]",
                            "terseLabel":  "Property, Plant and Equipment [Table]"
                            }
                        }
                    },
                "localname":  "ScheduleOfPropertyPlantAndEquipmentTable",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsPropertyandEquipmentNetDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_ScheduleOfRestructuringAndRelatedCostsTable":  {
                "auth_ref":  [
                    "r163",
                    "r164",
                    "r168"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Table presenting the description of the restructuring costs, such as the expected cost; the costs incurred during the period; the cumulative costs incurred as of the balance sheet date; the income statement caption within which the restructuring charges recognized for the period are included; and the amount of and periodic changes to an entity's restructuring reserve that occurred during the period associated with the exit from or disposal of business activities or restructurings for each major type of cost by type of restructuring.",
                            "label":  "Schedule of Restructuring and Related Costs [Table]",
                            "terseLabel":  "Schedule of Restructuring and Related Costs [Table]"
                            }
                        }
                    },
                "localname":  "ScheduleOfRestructuringAndRelatedCostsTable",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/RestructuringNarrativeDetails",
                    "http://www.shutterfly.com/role/RestructuringRestructuringReserveActivitiesDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_ScheduleOfRestructuringAndRelatedCostsTextBlock":  {
                "auth_ref":  [
                    "r163",
                    "r164",
                    "r168"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets.",
                            "label":  "Restructuring and Related Costs [Table Text Block]",
                            "terseLabel":  "Schedule of restructuring and related costs"
                            }
                        }
                    },
                "localname":  "ScheduleOfRestructuringAndRelatedCostsTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/RestructuringTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable":  {
                "auth_ref":  [
                    "r108",
                    "r114",
                    "r115",
                    "r118",
                    "r139"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "A table disclosing the profit or loss and total assets for each reportable segment of the entity.  An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.",
                            "label":  "Schedule of Segment Reporting Information, by Segment [Table]",
                            "terseLabel":  "Schedule of Segment Reporting Information, by Segment [Table]"
                            }
                        }
                    },
                "localname":  "ScheduleOfSegmentReportingInformationBySegmentTable",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock":  {
                "auth_ref":  [
                    "r108",
                    "r114",
                    "r115",
                    "r118",
                    "r139"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of the profit or loss and total assets for each reportable segment.  An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.",
                            "label":  "Schedule of Segment Reporting Information, by Segment [Table Text Block]",
                            "terseLabel":  "Segment reporting information"
                            }
                        }
                    },
                "localname":  "ScheduleOfSegmentReportingInformationBySegmentTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReportingTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable":  {
                "auth_ref":  [
                    "r210",
                    "r237"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Components of an equity-based arrangement under which compensation is awarded to employees, typically comprised of compensation expense; changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan; and cash flow effects resulting from the equity-based payment arrangement.  Component disclosures are by type of award and plan name.",
                            "label":  "Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]",
                            "terseLabel":  "Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]"
                            }
                        }
                    },
                "localname":  "ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationRestrictedStockUnitActivityDetails",
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationDetails",
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock":  {
                "auth_ref":  [
                    "r213",
                    "r224",
                    "r226"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure for stock option plans.  Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.",
                            "label":  "Share-based Compensation, Stock Options, Activity [Table Text Block]",
                            "terseLabel":  "Summary of the status of the company's stock option plan"
                            }
                        }
                    },
                "localname":  "ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock":  {
                "auth_ref":  [
                    "r229"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.",
                            "label":  "Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]",
                            "terseLabel":  "Summary of valuation assumptions for stock options"
                            }
                        }
                    },
                "localname":  "ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock":  {
                "auth_ref":  [
                    "r147"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets.",
                            "label":  "Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]",
                            "terseLabel":  "Schedule of amortization of intangible assets"
                            }
                        }
                    },
                "localname":  "ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsTables"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_SegmentDomain":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Components of an entity that engage in business activities from which they may earn revenue and incur expenses, including transactions with other components of the same entity.",
                            "label":  "Segments [Domain]",
                            "terseLabel":  "Segments [Domain]"
                            }
                        }
                    },
                "localname":  "SegmentDomain",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsGoodwillDetails",
                    "http://www.shutterfly.com/role/RevenuesConsumerRevenuesbyBrandDetails",
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_SegmentReportingAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Segment Reporting [Abstract]"
                            }
                        }
                    },
                "localname":  "SegmentReportingAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "xbrltype":  "stringItemType"
                },
            "us-gaap_SegmentReportingDisclosureTextBlock":  {
                "auth_ref":  [
                    "r123"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The entire disclosure for reporting segments including data and tables.  Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.",
                            "label":  "Segment Reporting Disclosure [Text Block]",
                            "terseLabel":  "Segment Reporting"
                            }
                        }
                    },
                "localname":  "SegmentReportingDisclosureTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReporting"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_SegmentReportingInformationLineItems":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Line items represent financial concepts included in a table.  These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
                            "label":  "Segment Reporting Information [Line Items]",
                            "terseLabel":  "Segment Reporting Information"
                            }
                        }
                    },
                "localname":  "SegmentReportingInformationLineItems",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_SegmentReportingRevenueReconcilingItemLineItems":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Line items represent financial concepts included in a table.  These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
                            "label":  "Segment Reporting, Revenue Reconciling Item [Line Items]",
                            "terseLabel":  "Segment Reporting, Revenue Reconciling Item [Line Items]"
                            }
                        }
                    },
                "localname":  "SegmentReportingRevenueReconcilingItemLineItems",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/SegmentReportingReconciliationofOperatingSegmentstoConsolidatedDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_SellingAndMarketingExpense":  {
                "auth_ref":  [
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_OperatingExpenses",
                        "weight":  1.0
                        },
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails":  {
                        "order":  6.0,
                        "parentTag":  "us-gaap_GrossProfit",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The aggregate total amount of expenses directly related to the marketing or selling of products or services.",
                            "label":  "Selling and Marketing Expense",
                            "verboseLabel":  "Sales and marketing"
                            }
                        }
                    },
                "localname":  "SellingAndMarketingExpense",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS",
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_SellingAndMarketingExpenseMember":  {
                "auth_ref":  [
                    "r65"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Primary financial statement caption encompassing selling and marketing expense.",
                            "label":  "Selling and Marketing Expense [Member]",
                            "verboseLabel":  "Sales and marketing"
                            }
                        }
                    },
                "localname":  "SellingAndMarketingExpenseMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationExpenseDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_ShareBasedCompensation":  {
                "auth_ref":  [
                    "r86"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS":  {
                        "order":  5.0,
                        "parentTag":  "us-gaap_NetCashProvidedByUsedInOperatingActivities",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The aggregate amount of noncash, equity-based employee remuneration.  This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation.  As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.",
                            "label":  "Share-based Compensation",
                            "terseLabel":  "Stock-based compensation"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensation",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1":  {
                "auth_ref":  [
                    "r211"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period",
                            "terseLabel":  "Vesting period of restricted stock"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationDetails"
                    ],
                "xbrltype":  "durationItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdditionalDisclosuresAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]",
                            "terseLabel":  "Weighted Average Grant Date Fair Value"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdditionalDisclosuresAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationRestrictedStockUnitActivityDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod":  {
                "auth_ref":  [
                    "r218"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period",
                            "negatedLabel":  "Forfeited (in shares)"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationRestrictedStockUnitActivityDetails"
                    ],
                "xbrltype":  "sharesItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue":  {
                "auth_ref":  [
                    "r223"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value",
                            "terseLabel":  "Forfeited (in dollars per share)"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationRestrictedStockUnitActivityDetails"
                    ],
                "xbrltype":  "perShareItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod":  {
                "auth_ref":  [
                    "r221"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period",
                            "terseLabel":  "Granted (in shares)"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationRestrictedStockUnitActivityDetails",
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationDetails"
                    ],
                "xbrltype":  "sharesItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue":  {
                "auth_ref":  [
                    "r221"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value",
                            "terseLabel":  "Granted (in dollars per share)"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationRestrictedStockUnitActivityDetails"
                    ],
                "xbrltype":  "perShareItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber":  {
                "auth_ref":  [
                    "r220"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number",
                            "periodEndLabel":  "Awarded and unvested, ending period (in shares)",
                            "periodStartLabel":  "Awarded and unvested, beginning of period (in shares)",
                            "terseLabel":  "Awarded and unvested, outstanding (in shares)"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationRestrictedStockUnitActivityDetails",
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationDetails"
                    ],
                "xbrltype":  "sharesItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]",
                            "terseLabel":  "Number of Units Outstanding"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationRestrictedStockUnitActivityDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue":  {
                "auth_ref":  [
                    "r220"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value",
                            "periodEndLabel":  "Awarded and unvested, ending period (in dollars per share)",
                            "periodStartLabel":  "Awarded and unvested, beginning period (in dollars per share)"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationRestrictedStockUnitActivityDetails"
                    ],
                "xbrltype":  "perShareItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod":  {
                "auth_ref":  [
                    "r222"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period",
                            "negatedLabel":  "Vested (in shares)",
                            "terseLabel":  "Vested (in shares)"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationRestrictedStockUnitActivityDetails",
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationDetails"
                    ],
                "xbrltype":  "sharesItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue":  {
                "auth_ref":  [
                    "r222"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value",
                            "terseLabel":  "Vested (in dollars per share)"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationRestrictedStockUnitActivityDetails"
                    ],
                "xbrltype":  "perShareItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate":  {
                "auth_ref":  [
                    "r232"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate",
                            "terseLabel":  "Dividend yield (percent)"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationValuationofStockOptionsDetails"
                    ],
                "xbrltype":  "percentItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate":  {
                "auth_ref":  [
                    "r231"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The estimated measure of the percentage by which a share price is expected to fluctuate during a period.  Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean.  The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period.  That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate",
                            "terseLabel":  "Expected volatility (percent)"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationValuationofStockOptionsDetails"
                    ],
                "xbrltype":  "percentItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate":  {
                "auth_ref":  [
                    "r233"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The risk-free interest rate assumption that is used in valuing an option on its own shares.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate",
                            "terseLabel":  "Annual risk-free rate of return (percent)"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationValuationofStockOptionsDetails"
                    ],
                "xbrltype":  "percentItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Line items represent financial concepts included in a table.  These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award [Line Items]",
                            "terseLabel":  "Share-based Compensation"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationRestrictedStockUnitActivityDetails",
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationDetails",
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue":  {
                "auth_ref":  [
                    "r225"
                    ],
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value",
                            "terseLabel":  "Exercises in period, intrinsic value"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod":  {
                "auth_ref":  [
                    "r218"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period",
                            "negatedLabel":  "Forfeited, cancelled or expired (in shares)"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "sharesItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod":  {
                "auth_ref":  [
                    "r216"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Net number of share options (or share units) granted during the period.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures",
                            "terseLabel":  "Options granted to purchase (in shares)",
                            "verboseLabel":  "Granted (in shares)"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationDetails",
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "sharesItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue":  {
                "auth_ref":  [
                    "r237"
                    ],
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value",
                            "periodEndLabel":  "Value at end of period"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber":  {
                "auth_ref":  [
                    "r215",
                    "r237"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Number of options outstanding, including both vested and non-vested options.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number",
                            "periodEndLabel":  "Balances (in shares)",
                            "periodStartLabel":  "Balances (in shares)"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "sharesItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]",
                            "terseLabel":  "Number of Options Outstanding (in thousands)"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice":  {
                "auth_ref":  [
                    "r214"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price",
                            "periodEndLabel":  "Balances (in dollars per share)",
                            "periodStartLabel":  "Balances (in dollars per share)"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "perShareItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]",
                            "terseLabel":  "Weighted Average Exercise Price"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue":  {
                "auth_ref":  [
                    "r228"
                    ],
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest exercisable or convertible options.  Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value",
                            "terseLabel":  "Options vested"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber":  {
                "auth_ref":  [
                    "r228"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Number of fully vested and expected to vest exercisable options that may be converted into shares under option plan.  Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number",
                            "verboseLabel":  "Options vested (in shares)"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "sharesItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice":  {
                "auth_ref":  [
                    "r228"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest exercisable or convertible options.  Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Exercise Price",
                            "terseLabel":  "Options vested (in dollars per share)"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "perShareItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue":  {
                "auth_ref":  [
                    "r226"
                    ],
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding.  Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value",
                            "terseLabel":  "Options vested and expected to vest"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber":  {
                "auth_ref":  [
                    "r227"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan.  Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number",
                            "terseLabel":  "Options vested and expected to vest (in shares)"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "sharesItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice":  {
                "auth_ref":  [
                    "r227"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding.  Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price",
                            "terseLabel":  "Options vested and expected to vest (in dollars per share)"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "perShareItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain":  {
                "auth_ref":  [
                    "r208",
                    "r212"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Equity-based compensation award.",
                            "label":  "Equity Award [Domain]",
                            "terseLabel":  "Equity Award [Domain]"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationRestrictedStockUnitActivityDetails",
                    "http://www.shutterfly.com/role/StockBasedCompensationStockBasedCompensationDetails",
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Weighted average price at which option holders acquired shares when converting their stock options into shares.",
                            "label":  "Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price",
                            "terseLabel":  "Exercised (in dollars per share)"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "perShareItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.",
                            "label":  "Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price",
                            "terseLabel":  "Forfeited, cancelled or expired (in dollars per share)"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "perShareItemType"
                },
            "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.",
                            "label":  "Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price",
                            "terseLabel":  "Granted (in dollars per share)"
                            }
                        }
                    },
                "localname":  "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "perShareItemType"
                },
            "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1":  {
                "auth_ref":  [
                    "r230",
                    "r239"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term",
                            "terseLabel":  "Expected term (years)"
                            }
                        }
                    },
                "localname":  "SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationValuationofStockOptionsDetails"
                    ],
                "xbrltype":  "durationItemType"
                },
            "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2":  {
                "auth_ref":  [
                    "r227"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term",
                            "terseLabel":  "Term at end of period"
                            }
                        }
                    },
                "localname":  "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "durationItemType"
                },
            "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1":  {
                "auth_ref":  [
                    "r228"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Weighted average remaining contractual term for fully vested and expected to vest exercisable or convertible options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.  Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Remaining Contractual Term",
                            "terseLabel":  "Options vested"
                            }
                        }
                    },
                "localname":  "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "durationItemType"
                },
            "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1":  {
                "auth_ref":  [
                    "r227"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.  Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term",
                            "terseLabel":  "Options vested and expected to vest"
                            }
                        }
                    },
                "localname":  "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "durationItemType"
                },
            "us-gaap_ShortTermInvestments":  {
                "auth_ref":  [
                    "r12",
                    "r346",
                    "r347",
                    "r349",
                    "r357"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  2.0,
                        "parentTag":  "us-gaap_AssetsCurrent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.",
                            "label":  "Short-term Investments",
                            "terseLabel":  "Short-term investments"
                            }
                        }
                    },
                "localname":  "ShortTermInvestments",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_ShortTermInvestmentsMember":  {
                "auth_ref":  [
                    "r346",
                    "r347",
                    "r357",
                    "r368"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Investments which are not otherwise included in another category or item that the entity has the intent to sell or dispose of within one year from the date of the balance sheet.",
                            "label":  "Short-term Investments [Member]",
                            "terseLabel":  "Short-term investments"
                            }
                        }
                    },
                "localname":  "ShortTermInvestmentsMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/InvestmentsScheduleofEstimatedFairValueDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_StatementBusinessSegmentsAxis":  {
                "auth_ref":  [
                    "r0",
                    "r114",
                    "r139",
                    "r157",
                    "r162",
                    "r171",
                    "r367"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by business segments.",
                            "label":  "Segments [Axis]",
                            "terseLabel":  "Segments [Axis]"
                            }
                        }
                    },
                "localname":  "StatementBusinessSegmentsAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsGoodwillDetails",
                    "http://www.shutterfly.com/role/RevenuesConsumerRevenuesbyBrandDetails",
                    "http://www.shutterfly.com/role/SegmentReportingSegmentInformationDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_StatementEquityComponentsAxis":  {
                "auth_ref":  [
                    "r41",
                    "r186"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by component of equity.",
                            "label":  "Equity Components [Axis]",
                            "terseLabel":  "Equity Components [Axis]"
                            }
                        }
                    },
                "localname":  "StatementEquityComponentsAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY",
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_StatementLineItems":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Line items represent financial concepts included in a table.  These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
                            "label":  "Statement [Line Items]",
                            "terseLabel":  "Statement [Line Items]"
                            }
                        }
                    },
                "localname":  "StatementLineItems",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_StatementOfCashFlowsAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Statement of Cash Flows [Abstract]",
                            "terseLabel":  "Statement of Cash Flows [Abstract]"
                            }
                        }
                    },
                "localname":  "StatementOfCashFlowsAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "xbrltype":  "stringItemType"
                },
            "us-gaap_StatementOfFinancialPositionAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Statement of Financial Position [Abstract]"
                            }
                        }
                    },
                "localname":  "StatementOfFinancialPositionAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "xbrltype":  "stringItemType"
                },
            "us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Statement of Comprehensive Income [Abstract]"
                            }
                        }
                    },
                "localname":  "StatementOfIncomeAndComprehensiveIncomeAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "xbrltype":  "stringItemType"
                },
            "us-gaap_StatementOfStockholdersEquityAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Statement of Stockholders' Equity [Abstract]",
                            "terseLabel":  "Statement of Stockholders' Equity [Abstract]"
                            }
                        }
                    },
                "localname":  "StatementOfStockholdersEquityAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "xbrltype":  "stringItemType"
                },
            "us-gaap_StatementScenarioAxis":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by scenario to be reported.  Scenarios distinguish among different kinds of business reporting facts, as for example actual versus budgeted figures.",
                            "label":  "Scenario [Axis]",
                            "terseLabel":  "Scenario [Axis]"
                            }
                        }
                    },
                "localname":  "StatementScenarioAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_StatementTable":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Schedule reflecting a Statement of Income, Statement of Cash Flows, Statement of Financial Position, Statement of Shareholders' Equity and Other Comprehensive Income, or other statement as needed.",
                            "label":  "Statement [Table]",
                            "terseLabel":  "Statement [Table]"
                            }
                        }
                    },
                "localname":  "StatementTable",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Gross number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP).  Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.",
                            "label":  "Stock Issued During Period, Shares, Share-based Compensation, Gross",
                            "terseLabel":  "Issuance of common stock upon exercise of options and vesting of restricted stock units (in shares)"
                            }
                        }
                    },
                "localname":  "StockIssuedDuringPeriodSharesShareBasedCompensationGross",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
                    ],
                "xbrltype":  "sharesItemType"
                },
            "us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised":  {
                "auth_ref":  [
                    "r16",
                    "r17",
                    "r186",
                    "r191",
                    "r217"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Number of share options (or share units) exercised during the current period.",
                            "label":  "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period",
                            "negatedLabel":  "Exercised (in shares)"
                            }
                        }
                    },
                "localname":  "StockIssuedDuringPeriodSharesStockOptionsExercised",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/StockBasedCompensationStockOptionActivityDetails"
                    ],
                "xbrltype":  "sharesItemType"
                },
            "us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross":  {
                "auth_ref":  [
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Gross value of stock (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP).  Stock issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.",
                            "label":  "Stock Issued During Period, Value, Share-based Compensation, Gross",
                            "terseLabel":  "Issuance of common stock upon exercise of options and vesting of restricted stock units"
                            }
                        }
                    },
                "localname":  "StockIssuedDuringPeriodValueShareBasedCompensationGross",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_StockRepurchaseProgramAuthorizedAmount1":  {
                "auth_ref":  [
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of stock repurchase plan authorized.",
                            "label":  "Stock Repurchase Program, Authorized Amount",
                            "terseLabel":  "Stock repurchase program, authorized amount"
                            }
                        }
                    },
                "localname":  "StockRepurchaseProgramAuthorizedAmount1",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/ShareRepurchaseProgramNarrativeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_StockholdersEquity":  {
                "auth_ref":  [
                    "r17",
                    "r21",
                    "r22",
                    "r124"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS":  {
                        "order":  1.0,
                        "parentTag":  "us-gaap_LiabilitiesAndStockholdersEquity",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent.  The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest).  This excludes temporary equity and is sometimes called permanent equity.",
                            "label":  "Stockholders' Equity Attributable to Parent",
                            "periodEndLabel":  "Balance, ending of period",
                            "periodStartLabel":  "Balance, beginning of period",
                            "totalLabel":  "Total stockholders' equity"
                            }
                        }
                    },
                "localname":  "StockholdersEquity",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS",
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_StockholdersEquityAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Stockholders' Equity Attributable to Parent [Abstract]",
                            "terseLabel":  "Stockholders\u2019 equity:"
                            }
                        }
                    },
                "localname":  "StockholdersEquityAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_SubleaseIncome":  {
                "auth_ref":  [
                    "r326",
                    "r333"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesComponentsofLeaseCostDetails":  {
                        "order":  4.0,
                        "parentTag":  "us-gaap_LeaseCost",
                        "weight":  -1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of sublease income excluding finance and operating lease expense.",
                            "label":  "Sublease Income",
                            "terseLabel":  "Sublease income"
                            }
                        }
                    },
                "localname":  "SubleaseIncome",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesComponentsofLeaseCostDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_SupplementalBalanceSheetDisclosuresTextBlock":  {
                "auth_ref":  [
                    "r46"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The entire disclosure for supplemental balance sheet disclosures, including descriptions and amounts for assets, liabilities, and equity.",
                            "label":  "Supplemental Balance Sheet Disclosures [Text Block]",
                            "verboseLabel":  "Balance Sheet Components"
                            }
                        }
                    },
                "localname":  "SupplementalBalanceSheetDisclosuresTextBlock",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponents"
                    ],
                "xbrltype":  "textBlockItemType"
                },
            "us-gaap_SupplementalCashFlowInformationAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Supplemental Cash Flow Information [Abstract]",
                            "terseLabel":  "Supplemental schedule of non-cash investing / financing activities:"
                            }
                        }
                    },
                "localname":  "SupplementalCashFlowInformationAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_TaxesPayableCurrent":  {
                "auth_ref":  [
                    "r33"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccruedLiabilitiesDetails":  {
                        "order":  5.0,
                        "parentTag":  "us-gaap_AccruedLiabilitiesCurrent",
                        "weight":  1.0
                        }
                    },
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes.  Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
                            "label":  "Taxes Payable, Current",
                            "terseLabel":  "Accrued income, sales and other taxes"
                            }
                        }
                    },
                "localname":  "TaxesPayableCurrent",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsAccruedLiabilitiesDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_TemporaryEquityForeignCurrencyTranslationAdjustments":  {
                "auth_ref":  [
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Adjustments to temporary equity resulting from foreign currency translation adjustments.",
                            "label":  "Temporary Equity, Foreign Currency Translation Adjustments",
                            "terseLabel":  "Foreign currency translation gains (losses)"
                            }
                        }
                    },
                "localname":  "TemporaryEquityForeignCurrencyTranslationAdjustments",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_TradeNamesMember":  {
                "auth_ref":  [
                    "r256"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Rights acquired through registration of a business name to gain or protect exclusive use thereof.",
                            "label":  "Trade Names [Member]",
                            "terseLabel":  "Trade name"
                            }
                        }
                    },
                "localname":  "TradeNamesMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/BalanceSheetComponentsIntangibleAssetsDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain":  {
                "auth_ref":  [
                    "r338"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Instrument or contract that imposes a contractual obligation to deliver cash or another financial instrument or to exchange other financial instruments on potentially unfavorable terms and conveys a contractual right to receive cash or another financial instrument or to exchange other financial instruments on potentially favorable terms.",
                            "label":  "Financial Instruments [Domain]",
                            "terseLabel":  "Financial Instruments [Domain]"
                            }
                        }
                    },
                "localname":  "TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/InvestmentsScheduleofEstimatedFairValueDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_TypeOfAdoptionMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Adoption and early adoption of sources of change to generally accepted accounting principles (GAAP) in the United States.  The FASB released the FASB Accounting Standards Codification as the authoritative source of literature effective for interim and annual periods ending after September 15, 2009.  As part of the Codification process, the FASB issues Accounting Standards Updates to amend the Codification but otherwise the Accounting Standards Updates are not authoritative in their own right.  All previous accounting standards (such as FASB Statements of Financial Accounting Standards, FASB Interpretations, FASB Staff Positions, Emerging Issues Task Force Consensuses, other pronouncements of the FASB or other designated bodies, or other forms of GAAP are considered accounting pronouncements) were superseded upon the adoption of the Codification.  For an interim period, references to the superseded standards are included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.",
                            "label":  "Type of Adoption [Domain]",
                            "terseLabel":  "Type of Adoption [Domain]"
                            }
                        }
                    },
                "localname":  "TypeOfAdoptionMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/TheCompanyandSummaryofSignificantAccountingPoliciesNarrativeDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_TypeOfRestructuringDomain":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Identification of the types of restructuring costs.",
                            "label":  "Type of Restructuring [Domain]",
                            "terseLabel":  "Type of Restructuring [Domain]"
                            }
                        }
                    },
                "localname":  "TypeOfRestructuringDomain",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/RestructuringNarrativeDetails",
                    "http://www.shutterfly.com/role/RestructuringRestructuringReserveActivitiesDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_USTreasuryAndGovernmentMember":  {
                "auth_ref":  [
                    "r204",
                    "r348"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "This category includes investments in debt securities issued by the United States Department of the Treasury, US Government Agencies and US Government-sponsored Enterprises.  Such securities may include treasury bills (short-term maturities - one year or less), treasury notes (intermediate term maturities - two to ten years), and treasury bonds (long-term maturities - ten to thirty years), debt securities issued by the Government National Mortgage Association (Ginnie Mae) and debt securities issued by the Federal National Mortgage Association (Fannie Mae) or the Federal Home Loan Mortgage Corporation (Freddie Mac).",
                            "label":  "US Treasury and Government [Member]",
                            "terseLabel":  "U.S. government securities"
                            }
                        }
                    },
                "localname":  "USTreasuryAndGovernmentMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/FairValueMeasurementCashEquivalentsandInvestmentsDetails",
                    "http://www.shutterfly.com/role/InvestmentsScheduleofEstimatedFairValueDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount":  {
                "auth_ref":  [
                    "r174"
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of the unrecorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts).",
                            "label":  "Unrecorded Unconditional Purchase Obligation",
                            "terseLabel":  "Total purchase obligations"
                            }
                        }
                    },
                "localname":  "UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CommitmentsandContingenciesNarrativeDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_UnrecordedUnconditionalPurchaseObligationTerm":  {
                "auth_ref":  [
                    "r173"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Term of the unrecognized unconditional purchase obligation, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
                            "label":  "Unrecorded Unconditional Purchase Obligation, Term",
                            "terseLabel":  "Unrecorded unconditional purchase obligation, term"
                            }
                        }
                    },
                "localname":  "UnrecordedUnconditionalPurchaseObligationTerm",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CommitmentsandContingenciesNarrativeDetails"
                    ],
                "xbrltype":  "durationItemType"
                },
            "us-gaap_VariableLeaseCost":  {
                "auth_ref":  [
                    "r325",
                    "r333"
                    ],
                "calculation":  {
                    "http://www.shutterfly.com/role/LeasesComponentsofLeaseCostDetails":  {
                        "order":  5.0,
                        "parentTag":  "us-gaap_LeaseCost",
                        "weight":  1.0
                        }
                    },
                "crdr":  "debit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.",
                            "label":  "Variable Lease, Cost",
                            "terseLabel":  "Variable lease cost"
                            }
                        }
                    },
                "localname":  "VariableLeaseCost",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/LeasesComponentsofLeaseCostDetails"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_VariableRateAxis":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by type of variable rate.",
                            "label":  "Variable Rate [Axis]",
                            "terseLabel":  "Variable Rate [Axis]"
                            }
                        }
                    },
                "localname":  "VariableRateAxis",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails"
                    ],
                "xbrltype":  "stringItemType"
                },
            "us-gaap_VariableRateDomain":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Interest rate that fluctuates over time as a result of an underlying benchmark interest rate or index.",
                            "label":  "Variable Rate [Domain]",
                            "terseLabel":  "Variable Rate [Domain]"
                            }
                        }
                    },
                "localname":  "VariableRateDomain",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/DebtScheduleofDebtDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_WarrantMember":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Security that gives the holder the right to purchase shares of stock in accordance with the terms of the instrument, usually upon payment of a specified amount.",
                            "label":  "Warrant [Member]",
                            "terseLabel":  "Warrant"
                            }
                        }
                    },
                "localname":  "WarrantMember",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/NetLossPerShareNarrativeDetails"
                    ],
                "xbrltype":  "domainItemType"
                },
            "us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).",
                            "label":  "Weighted Average Number of Shares Outstanding, Basic and Diluted",
                            "terseLabel":  "Weighted-average shares outstanding (in shares)",
                            "verboseLabel":  "Weighted-average shares outstanding - basic and diluted (in shares)"
                            }
                        }
                    },
                "localname":  "WeightedAverageNumberOfShareOutstandingBasicAndDiluted",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS",
                    "http://www.shutterfly.com/role/NetLossPerShareDetails"
                    ],
                "xbrltype":  "sharesItemType"
                },
            "us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "label":  "Weighted Average Number of Shares Outstanding Reconciliation [Abstract]",
                            "terseLabel":  "Denominator for basic and diluted net loss per share"
                            }
                        }
                    },
                "localname":  "WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract",
                "nsuri":  "http://fasb.org/us-gaap/2018-01-31",
                "presentation":  [
                    "http://www.shutterfly.com/role/NetLossPerShareDetails"
                    ],
                "xbrltype":  "stringItemType"
                }
            },
        "unitCount":  8
        }
    },
"std_ref":  {
    "r0":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(d)",
        "Topic":  "205",
        "URI":  "http://asc.fasb.org/extlink&oid=109222650&loc=d3e1361-107760"
        },
    "r1":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Topic":  "205",
        "URI":  "http://asc.fasb.org/extlink&oid=109222650&loc=d3e1361-107760"
        },
    "r10":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02(14))",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r100":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "8",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "250",
        "URI":  "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22658-107794"
        },
    "r101":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "9",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "250",
        "URI":  "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22663-107794"
        },
    "r102":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "40",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Subparagraph":  "(c)",
        "Topic":  "260",
        "URI":  "http://asc.fasb.org/extlink&oid=109260490&loc=d3e1930-109256"
        },
    "r103":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "7",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "260",
        "URI":  "http://asc.fasb.org/extlink&oid=109260490&loc=d3e1337-109256"
        },
    "r104":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(c)",
        "Topic":  "260",
        "URI":  "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257"
        },
    "r105":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "260",
        "URI":  "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257"
        },
    "r106":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "260",
        "URI":  "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3630-109257"
        },
    "r107":  {
        "Name":  "Accounting Standards Codification",
        "Publisher":  "FASB",
        "Topic":  "260",
        "URI":  "http://asc.fasb.org/topic&trid=2144383"
        },
    "r108":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "21",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(b)",
        "Topic":  "280",
        "URI":  "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8721-108599"
        },
    "r109":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "22",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(b)",
        "Topic":  "280",
        "URI":  "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599"
        },
    "r11":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02(19))",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r110":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "22",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(c)",
        "Topic":  "280",
        "URI":  "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599"
        },
    "r111":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "22",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(d)",
        "Topic":  "280",
        "URI":  "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599"
        },
    "r112":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "22",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(e)",
        "Topic":  "280",
        "URI":  "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599"
        },
    "r113":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "22",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(h)",
        "Topic":  "280",
        "URI":  "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599"
        },
    "r114":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "22",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "280",
        "URI":  "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599"
        },
    "r115":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "25",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "280",
        "URI":  "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8813-108599"
        },
    "r116":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "30",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(a)",
        "Topic":  "280",
        "URI":  "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8906-108599"
        },
    "r117":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "30",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(b)",
        "Topic":  "280",
        "URI":  "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8906-108599"
        },
    "r118":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "30",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "280",
        "URI":  "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8906-108599"
        },
    "r119":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "31",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "280",
        "URI":  "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8924-108599"
        },
    "r12":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02(2))",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r120":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "32",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(b)",
        "Topic":  "280",
        "URI":  "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599"
        },
    "r121":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "40",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "280",
        "URI":  "http://asc.fasb.org/extlink&oid=115929826&loc=d3e9031-108599"
        },
    "r122":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "41",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "280",
        "URI":  "http://asc.fasb.org/extlink&oid=115929826&loc=d3e9038-108599"
        },
    "r123":  {
        "Name":  "Accounting Standards Codification",
        "Publisher":  "FASB",
        "Topic":  "280",
        "URI":  "http://asc.fasb.org/topic&trid=2134510"
        },
    "r124":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SAB Topic 4.E)",
        "Topic":  "310",
        "URI":  "http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707"
        },
    "r125":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Subparagraph":  "(b)",
        "Topic":  "320",
        "URI":  "http://asc.fasb.org/extlink&oid=109979856&loc=d3e26610-111562"
        },
    "r126":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "11",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "320",
        "URI":  "http://asc.fasb.org/extlink&oid=109979856&loc=d3e26853-111562"
        },
    "r127":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "8A",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "320",
        "URI":  "http://asc.fasb.org/extlink&oid=109979856&loc=SL6284422-111562"
        },
    "r128":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(a)",
        "Topic":  "320",
        "URI":  "http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563"
        },
    "r129":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(aa)",
        "Topic":  "320",
        "URI":  "http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563"
        },
    "r13":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02(20))",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r130":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(b)",
        "Topic":  "320",
        "URI":  "http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563"
        },
    "r131":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(c)",
        "Topic":  "320",
        "URI":  "http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563"
        },
    "r132":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(d)",
        "Topic":  "320",
        "URI":  "http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563"
        },
    "r133":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "3",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(a)",
        "Topic":  "320",
        "URI":  "http://asc.fasb.org/extlink&oid=82897076&loc=d3e27198-111563"
        },
    "r134":  {
        "Name":  "Accounting Standards Codification",
        "Publisher":  "FASB",
        "Topic":  "320",
        "URI":  "http://asc.fasb.org/topic&trid=2196928"
        },
    "r135":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "35",
        "SubTopic":  "10",
        "Topic":  "330",
        "URI":  "http://asc.fasb.org/extlink&oid=68049868&loc=d3e3927-108312"
        },
    "r136":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "20",
        "Topic":  "350",
        "URI":  "http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266"
        },
    "r137":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "5",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "20",
        "Topic":  "350",
        "URI":  "http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975"
        },
    "r138":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(f)",
        "Topic":  "350",
        "URI":  "http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267"
        },
    "r139":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Topic":  "350",
        "URI":  "http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267"
        },
    "r14":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02(22))",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r140":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Topic":  "350",
        "URI":  "http://asc.fasb.org/extlink&oid=108376223&loc=d3e13854-109267"
        },
    "r141":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "30",
        "Topic":  "350",
        "URI":  "http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274"
        },
    "r142":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "30",
        "Topic":  "350",
        "URI":  "http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274"
        },
    "r143":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "30",
        "Subparagraph":  "(a)",
        "Topic":  "350",
        "URI":  "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275"
        },
    "r144":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "30",
        "Subparagraph":  "(a)(1)",
        "Topic":  "350",
        "URI":  "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275"
        },
    "r145":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "30",
        "Subparagraph":  "(d)",
        "Topic":  "350",
        "URI":  "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275"
        },
    "r146":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "30",
        "Subparagraph":  "((a)(1),(b))",
        "Topic":  "350",
        "URI":  "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
        },
    "r147":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "30",
        "Subparagraph":  "(a)",
        "Topic":  "350",
        "URI":  "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
        },
    "r148":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "30",
        "Subparagraph":  "(a)(1)",
        "Topic":  "350",
        "URI":  "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
        },
    "r149":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "30",
        "Subparagraph":  "(a)(2)",
        "Topic":  "350",
        "URI":  "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
        },
    "r15":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02(24))",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r150":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "30",
        "Subparagraph":  "(a)(3)",
        "Topic":  "350",
        "URI":  "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
        },
    "r151":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "30",
        "Subparagraph":  "(d)",
        "Topic":  "350",
        "URI":  "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
        },
    "r152":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4",
        "Publisher":  "FASB",
        "Section":  "15",
        "SubTopic":  "10",
        "Subparagraph":  "(b)(2)",
        "Topic":  "360",
        "URI":  "http://asc.fasb.org/extlink&oid=77912953&loc=d3e400-110220"
        },
    "r153":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(b)",
        "Topic":  "360",
        "URI":  "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229"
        },
    "r154":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(c)",
        "Topic":  "360",
        "URI":  "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229"
        },
    "r155":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "360",
        "URI":  "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229"
        },
    "r156":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "3",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(d)",
        "Topic":  "360",
        "URI":  "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230"
        },
    "r157":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "3",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(f)",
        "Topic":  "360",
        "URI":  "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230"
        },
    "r158":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "3",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "360",
        "URI":  "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230"
        },
    "r159":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(b)",
        "Topic":  "420",
        "URI":  "http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869"
        },
    "r16":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02(28))",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r160":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(b)(1)",
        "Topic":  "420",
        "URI":  "http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869"
        },
    "r161":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(b)(2)",
        "Topic":  "420",
        "URI":  "http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869"
        },
    "r162":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(d)",
        "Topic":  "420",
        "URI":  "http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869"
        },
    "r163":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "420",
        "URI":  "http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869"
        },
    "r164":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SAB TOPIC 5.P.3)",
        "Topic":  "420",
        "URI":  "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747"
        },
    "r165":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SAB Topic 5.P.3)",
        "Topic":  "420",
        "URI":  "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747"
        },
    "r166":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SAB TOPIC 5.P.4(b)(2))",
        "Topic":  "420",
        "URI":  "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747"
        },
    "r167":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SAB TOPIC 5.P.4(b))",
        "Topic":  "420",
        "URI":  "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747"
        },
    "r168":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SAB TOPIC 5.P.4)",
        "Topic":  "420",
        "URI":  "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747"
        },
    "r169":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SAB Topic 5.P.4(b)(1))",
        "Topic":  "420",
        "URI":  "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747"
        },
    "r17":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02(29))",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r170":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SAB Topic 5.P.4(b))",
        "Topic":  "420",
        "URI":  "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747"
        },
    "r171":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SAB Topic 5.P.4(d))",
        "Topic":  "420",
        "URI":  "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747"
        },
    "r172":  {
        "Name":  "Accounting Standards Codification",
        "Publisher":  "FASB",
        "Topic":  "420",
        "URI":  "http://asc.fasb.org/topic&trid=2175745"
        },
    "r173":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(a)",
        "Topic":  "440",
        "URI":  "http://asc.fasb.org/extlink&oid=77896938&loc=d3e25336-109308"
        },
    "r174":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(b)",
        "Topic":  "440",
        "URI":  "http://asc.fasb.org/extlink&oid=77896938&loc=d3e25336-109308"
        },
    "r175":  {
        "Name":  "Accounting Standards Codification",
        "Publisher":  "FASB",
        "Topic":  "440",
        "URI":  "http://asc.fasb.org/topic&trid=2144648"
        },
    "r176":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Topic":  "450",
        "URI":  "http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349"
        },
    "r177":  {
        "Name":  "Accounting Standards Codification",
        "Publisher":  "FASB",
        "Topic":  "450",
        "URI":  "http://asc.fasb.org/topic&trid=2127136"
        },
    "r178":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "470",
        "URI":  "http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601"
        },
    "r179":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "5",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "470",
        "URI":  "http://asc.fasb.org/extlink&oid=6802200&loc=SL6230698-112601"
        },
    "r18":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02(3))",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r180":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(b)(1)",
        "Topic":  "470",
        "URI":  "http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870"
        },
    "r181":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(b)(2)",
        "Topic":  "470",
        "URI":  "http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870"
        },
    "r182":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(b)(3)",
        "Topic":  "470",
        "URI":  "http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870"
        },
    "r183":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "6",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(a)",
        "Topic":  "470",
        "URI":  "http://asc.fasb.org/extlink&oid=109500613&loc=SL6036836-161870"
        },
    "r184":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "6",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(b)",
        "Topic":  "470",
        "URI":  "http://asc.fasb.org/extlink&oid=109500613&loc=SL6036836-161870"
        },
    "r185":  {
        "Name":  "Accounting Standards Codification",
        "Publisher":  "FASB",
        "Topic":  "470",
        "URI":  "http://asc.fasb.org/topic&trid=2208564"
        },
    "r186":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "505",
        "URI":  "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644"
        },
    "r187":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "3",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "505",
        "URI":  "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644"
        },
    "r188":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "6",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "505",
        "URI":  "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644"
        },
    "r189":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "7",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "505",
        "URI":  "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21521-112644"
        },
    "r19":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02(30)(a)(1))",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r190":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "8",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "505",
        "URI":  "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21538-112644"
        },
    "r191":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.3-04)",
        "Topic":  "505",
        "URI":  "http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770"
        },
    "r192":  {
        "Name":  "Accounting Standards Codification",
        "Publisher":  "FASB",
        "SubTopic":  "50",
        "Topic":  "505",
        "URI":  "http://asc.fasb.org/subtopic&trid=2208855"
        },
    "r193":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "606",
        "URI":  "http://asc.fasb.org/extlink&oid=82913815&loc=SL49130531-203044"
        },
    "r194":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "606",
        "URI":  "http://asc.fasb.org/extlink&oid=82913815&loc=SL49130532-203044"
        },
    "r195":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(a)",
        "Topic":  "606",
        "URI":  "http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045"
        },
    "r196":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(a)",
        "Topic":  "606",
        "URI":  "http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045"
        },
    "r197":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "5",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "606",
        "URI":  "http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045"
        },
    "r198":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "8",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(a)",
        "Topic":  "606",
        "URI":  "http://asc.fasb.org/extlink&oid=109196051&loc=SL49130549-203045"
        },
    "r199":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "8",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(b)",
        "Topic":  "606",
        "URI":  "http://asc.fasb.org/extlink&oid=109196051&loc=SL49130549-203045"
        },
    "r2":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Subparagraph":  "(a)",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=82887183&loc=d3e6676-107765"
        },
    "r20":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02(30)(a)(3))",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r200":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "91",
        "Publisher":  "FASB",
        "Section":  "55",
        "SubTopic":  "10",
        "Subparagraph":  "(a)",
        "Topic":  "606",
        "URI":  "http://asc.fasb.org/extlink&oid=108792157&loc=SL49130690-203046-203046"
        },
    "r201":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "91",
        "Publisher":  "FASB",
        "Section":  "55",
        "SubTopic":  "10",
        "Subparagraph":  "(b)",
        "Topic":  "606",
        "URI":  "http://asc.fasb.org/extlink&oid=108792157&loc=SL49130690-203046-203046"
        },
    "r202":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "65",
        "SubTopic":  "10",
        "Topic":  "606",
        "URI":  "http://asc.fasb.org/extlink&oid=113356391&loc=SL49131195-203048"
        },
    "r203":  {
        "Name":  "Accounting Standards Codification",
        "Publisher":  "FASB",
        "Topic":  "606",
        "URI":  "http://asc.fasb.org/topic&trid=49130388"
        },
    "r204":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(d)(ii)",
        "Topic":  "715",
        "URI":  "http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920"
        },
    "r205":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(d)(iv)(01)",
        "Topic":  "715",
        "URI":  "http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920"
        },
    "r206":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "17",
        "Publisher":  "FASB",
        "Section":  "55",
        "SubTopic":  "20",
        "Topic":  "715",
        "URI":  "http://asc.fasb.org/extlink&oid=112275985&loc=d3e4179-114921"
        },
    "r207":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "35",
        "SubTopic":  "10",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=79507207&loc=d3e4534-113899"
        },
    "r208":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(a)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5047-113901"
        },
    "r209":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(b)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5047-113901"
        },
    "r21":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02(30))",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r210":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5047-113901"
        },
    "r211":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(a)(1)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r212":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(a),(g)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r213":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(c)(1)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r214":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(c)(1)(i)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r215":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(c)(1)(i)-(ii)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r216":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(c)(1)(iv)(1)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r217":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(c)(1)(iv)(2)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r218":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(c)(1)(iv)(3)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r219":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(c)(2)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r22":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02(31))",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r220":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(c)(2)(i)-(ii)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r221":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(c)(2)(iii)(1)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r222":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(c)(2)(iii)(2)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r223":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(c)(2)(iii)(3)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r224":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(d)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r225":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(d)(2)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r226":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(e)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r227":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(e)(1)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r228":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(e)(2)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r229":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(f)(2)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r23":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02(32))",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r230":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(f)(2)(i)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r231":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(f)(2)(ii)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r232":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(f)(2)(iii)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r233":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(f)(2)(iv)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r234":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(h)(1)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r235":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(h)(1)(i)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r236":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(i)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r237":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901"
        },
    "r238":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2A",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(a)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109197908&loc=SL79508275-113901"
        },
    "r239":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SAB Topic 14.D.2)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809"
        },
    "r24":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02(7))",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r240":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SAB Topic 14.F)",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809"
        },
    "r241":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "12",
        "Publisher":  "FASB",
        "Section":  "55",
        "SubTopic":  "20",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109196918&loc=d3e11149-113907"
        },
    "r242":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "13",
        "Publisher":  "FASB",
        "Section":  "55",
        "SubTopic":  "20",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/extlink&oid=109196918&loc=d3e11178-113907"
        },
    "r243":  {
        "Name":  "Accounting Standards Codification",
        "Publisher":  "FASB",
        "Topic":  "718",
        "URI":  "http://asc.fasb.org/topic&trid=2228938"
        },
    "r244":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "6",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "740",
        "URI":  "http://asc.fasb.org/extlink&oid=84176650&loc=d3e31931-109318"
        },
    "r245":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "740",
        "URI":  "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319"
        },
    "r246":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "9",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(b)",
        "Topic":  "740",
        "URI":  "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319"
        },
    "r247":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "51",
        "Publisher":  "FASB",
        "Section":  "55",
        "SubTopic":  "10",
        "Topic":  "740",
        "URI":  "http://asc.fasb.org/extlink&oid=109238393&loc=d3e34017-109320"
        },
    "r248":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SAB Topic 6.I.7)",
        "Topic":  "740",
        "URI":  "http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817"
        },
    "r249":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "20",
        "Subparagraph":  "(a)",
        "Topic":  "740",
        "URI":  "http://asc.fasb.org/extlink&oid=109238882&loc=d3e38679-109324"
        },
    "r25":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02(8))",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r250":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "23",
        "Publisher":  "FASB",
        "Section":  "25",
        "SubTopic":  "10",
        "Topic":  "805",
        "URI":  "http://asc.fasb.org/extlink&oid=84229725&loc=d3e1043-128460"
        },
    "r251":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(h)(2)",
        "Topic":  "805",
        "URI":  "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463"
        },
    "r252":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(h)(3)",
        "Topic":  "805",
        "URI":  "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463"
        },
    "r253":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "805",
        "URI":  "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463"
        },
    "r254":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "3",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "805",
        "URI":  "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1486-128463"
        },
    "r255":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(c)",
        "Topic":  "805",
        "URI":  "http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472"
        },
    "r256":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "14",
        "Publisher":  "FASB",
        "Section":  "55",
        "SubTopic":  "20",
        "Subparagraph":  "(a)",
        "Topic":  "805",
        "URI":  "http://asc.fasb.org/extlink&oid=77890550&loc=d3e5263-128473"
        },
    "r257":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "20",
        "Publisher":  "FASB",
        "Section":  "55",
        "SubTopic":  "20",
        "Subparagraph":  "(c)",
        "Topic":  "805",
        "URI":  "http://asc.fasb.org/extlink&oid=77890550&loc=d3e5333-128473"
        },
    "r258":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "38",
        "Publisher":  "FASB",
        "Section":  "55",
        "SubTopic":  "20",
        "Topic":  "805",
        "URI":  "http://asc.fasb.org/extlink&oid=77890550&loc=d3e5504-128473"
        },
    "r259":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "7",
        "Publisher":  "FASB",
        "Section":  "30",
        "SubTopic":  "30",
        "Topic":  "805",
        "URI":  "http://asc.fasb.org/extlink&oid=109124213&loc=d3e6578-128477"
        },
    "r26":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02.1)",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r260":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "8",
        "Publisher":  "FASB",
        "Section":  "30",
        "SubTopic":  "30",
        "Topic":  "805",
        "URI":  "http://asc.fasb.org/extlink&oid=109124213&loc=d3e6613-128477"
        },
    "r261":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "30",
        "Subparagraph":  "(b)",
        "Topic":  "805",
        "URI":  "http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479"
        },
    "r262":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "30",
        "Subparagraph":  "(b)(1)",
        "Topic":  "805",
        "URI":  "http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479"
        },
    "r263":  {
        "Name":  "Accounting Standards Codification",
        "Publisher":  "FASB",
        "Topic":  "805",
        "URI":  "http://asc.fasb.org/topic&trid=2303972"
        },
    "r264":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "19",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "810",
        "URI":  "http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683"
        },
    "r265":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "20",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "810",
        "URI":  "http://asc.fasb.org/extlink&oid=108774443&loc=SL4569643-111683"
        },
    "r266":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1A",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(c)(3)",
        "Topic":  "810",
        "URI":  "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684"
        },
    "r267":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1A",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(c),(3)",
        "Topic":  "810",
        "URI":  "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684"
        },
    "r268":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "815",
        "URI":  "http://asc.fasb.org/extlink&oid=109980867&loc=SL5579240-113959"
        },
    "r269":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1A",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(b)",
        "Topic":  "815",
        "URI":  "http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959"
        },
    "r27":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02.12)",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r270":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1A",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(d)",
        "Topic":  "815",
        "URI":  "http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959"
        },
    "r271":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1A",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "815",
        "URI":  "http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959"
        },
    "r272":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1B",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "815",
        "URI":  "http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959"
        },
    "r273":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(a)(1)(ii)",
        "Topic":  "815",
        "URI":  "http://asc.fasb.org/extlink&oid=109980867&loc=d3e41620-113959"
        },
    "r274":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "815",
        "URI":  "http://asc.fasb.org/extlink&oid=109980867&loc=d3e41620-113959"
        },
    "r275":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "815",
        "URI":  "http://asc.fasb.org/extlink&oid=109980867&loc=d3e41638-113959"
        },
    "r276":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4A",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(a)",
        "Topic":  "815",
        "URI":  "http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959"
        },
    "r277":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4A",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(b)",
        "Topic":  "815",
        "URI":  "http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959"
        },
    "r278":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4A",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "815",
        "URI":  "http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959"
        },
    "r279":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4B",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(c)(1)",
        "Topic":  "815",
        "URI":  "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959"
        },
    "r28":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02.13)",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r280":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4B",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(d)",
        "Topic":  "815",
        "URI":  "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959"
        },
    "r281":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4B",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "815",
        "URI":  "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959"
        },
    "r282":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4C",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(b)",
        "Topic":  "815",
        "URI":  "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959"
        },
    "r283":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4C",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "815",
        "URI":  "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959"
        },
    "r284":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4D",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(a)(1)",
        "Topic":  "815",
        "URI":  "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624177-113959"
        },
    "r285":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4D",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "815",
        "URI":  "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624177-113959"
        },
    "r286":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4E",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "815",
        "URI":  "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624181-113959"
        },
    "r287":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "5",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "815",
        "URI":  "http://asc.fasb.org/extlink&oid=109980867&loc=d3e41641-113959"
        },
    "r288":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "8",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "815",
        "URI":  "http://asc.fasb.org/extlink&oid=109980867&loc=d3e41678-113959"
        },
    "r289":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "182",
        "Publisher":  "FASB",
        "Section":  "55",
        "SubTopic":  "10",
        "Topic":  "815",
        "URI":  "http://asc.fasb.org/extlink&oid=109975725&loc=SL5629052-113961"
        },
    "r29":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02.14)",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r290":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "25",
        "Topic":  "815",
        "URI":  "http://asc.fasb.org/extlink&oid=109977999&loc=d3e76258-113986"
        },
    "r291":  {
        "Name":  "Accounting Standards Codification",
        "Publisher":  "FASB",
        "Topic":  "815",
        "URI":  "http://asc.fasb.org/topic&trid=2229140"
        },
    "r292":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "820",
        "URI":  "http://asc.fasb.org/extlink&oid=99377789&loc=d3e19190-110258"
        },
    "r293":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(a)",
        "Topic":  "820",
        "URI":  "http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258"
        },
    "r294":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(b)",
        "Topic":  "820",
        "URI":  "http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258"
        },
    "r295":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(bb)",
        "Topic":  "820",
        "URI":  "http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258"
        },
    "r296":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2C",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "820",
        "URI":  "http://asc.fasb.org/extlink&oid=99377789&loc=SL7498348-110258"
        },
    "r297":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "3",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "820",
        "URI":  "http://asc.fasb.org/extlink&oid=99377789&loc=d3e19279-110258"
        },
    "r298":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "6A",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Subparagraph":  "(a)",
        "Topic":  "820",
        "URI":  "http://asc.fasb.org/extlink&oid=99377789&loc=SL6742756-110258"
        },
    "r299":  {
        "Name":  "Accounting Standards Codification",
        "Publisher":  "FASB",
        "Topic":  "820",
        "URI":  "http://asc.fasb.org/topic&trid=2155941"
        },
    "r3":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Subparagraph":  "(b)",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=82887183&loc=d3e6676-107765"
        },
    "r30":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02.17)",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r300":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Subparagraph":  "(a)",
        "Topic":  "825",
        "URI":  "http://asc.fasb.org/extlink&oid=75026489&loc=d3e13220-108610"
        },
    "r301":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "10",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "825",
        "URI":  "http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611"
        },
    "r302":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "230",
        "Topic":  "830",
        "URI":  "http://asc.fasb.org/extlink&oid=98513438&loc=d3e33268-110906"
        },
    "r303":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "12",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "30",
        "Topic":  "830",
        "URI":  "http://asc.fasb.org/extlink&oid=109240241&loc=d3e32022-110900"
        },
    "r304":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "30",
        "Topic":  "830",
        "URI":  "http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901"
        },
    "r305":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(a)",
        "Topic":  "835",
        "URI":  "http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391"
        },
    "r306":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1A",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "30",
        "Topic":  "835",
        "URI":  "http://asc.fasb.org/extlink&oid=114775744&loc=d3e28541-108399"
        },
    "r307":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "30",
        "Topic":  "835",
        "URI":  "http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399"
        },
    "r308":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "3",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "30",
        "Topic":  "835",
        "URI":  "http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399"
        },
    "r309":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "8",
        "Publisher":  "FASB",
        "Section":  "55",
        "SubTopic":  "30",
        "Topic":  "835",
        "URI":  "http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400"
        },
    "r31":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02.19(a))",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r310":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "40",
        "Publisher":  "FASB",
        "Section":  "55",
        "SubTopic":  "10",
        "Subparagraph":  "(Note 3)",
        "Topic":  "840",
        "URI":  "http://asc.fasb.org/extlink&oid=82846649&loc=d3e38371-112697"
        },
    "r311":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(a)",
        "Topic":  "840",
        "URI":  "http://asc.fasb.org/extlink&oid=77902758&loc=d3e41502-112717"
        },
    "r312":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "30",
        "Subparagraph":  "(b)",
        "Topic":  "840",
        "URI":  "http://asc.fasb.org/extlink&oid=84164817&loc=d3e45280-112737"
        },
    "r313":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "65",
        "SubTopic":  "10",
        "Topic":  "842",
        "URI":  "http://asc.fasb.org/extlink&oid=113997351&loc=SL77916155-209984"
        },
    "r314":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "20",
        "Subparagraph":  "(a)",
        "Topic":  "842",
        "URI":  "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977"
        },
    "r315":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "20",
        "Subparagraph":  "(b)",
        "Topic":  "842",
        "URI":  "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977"
        },
    "r316":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "20",
        "Subparagraph":  "(a)",
        "Topic":  "842",
        "URI":  "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918638-209977"
        },
    "r317":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "5",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "20",
        "Subparagraph":  "(a)",
        "Topic":  "842",
        "URI":  "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918643-209977"
        },
    "r318":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "5",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "20",
        "Subparagraph":  "(b)",
        "Topic":  "842",
        "URI":  "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918643-209977"
        },
    "r319":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "5",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "20",
        "Subparagraph":  "(c)",
        "Topic":  "842",
        "URI":  "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918643-209977"
        },
    "r32":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02.19(b),22(b))",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r320":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(b)",
        "Topic":  "842",
        "URI":  "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918666-209980"
        },
    "r321":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "3",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(b)",
        "Topic":  "842",
        "URI":  "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980"
        },
    "r322":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "3",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Topic":  "842",
        "URI":  "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980"
        },
    "r323":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(a)",
        "Topic":  "842",
        "URI":  "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
        },
    "r324":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(b)",
        "Topic":  "842",
        "URI":  "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
        },
    "r325":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(d)",
        "Topic":  "842",
        "URI":  "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
        },
    "r326":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(e)",
        "Topic":  "842",
        "URI":  "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
        },
    "r327":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(g)(1)",
        "Topic":  "842",
        "URI":  "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
        },
    "r328":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(g)(2)",
        "Topic":  "842",
        "URI":  "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
        },
    "r329":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(g)(3)",
        "Topic":  "842",
        "URI":  "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
        },
    "r33":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02.19,20)",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r330":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(g)(4)",
        "Topic":  "842",
        "URI":  "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
        },
    "r331":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Topic":  "842",
        "URI":  "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
        },
    "r332":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "6",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Topic":  "842",
        "URI":  "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980"
        },
    "r333":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "53",
        "Publisher":  "FASB",
        "Section":  "55",
        "SubTopic":  "20",
        "Topic":  "842",
        "URI":  "http://asc.fasb.org/extlink&oid=77888399&loc=SL77918982-209971"
        },
    "r334":  {
        "Name":  "Accounting Standards Codification",
        "Publisher":  "FASB",
        "SubTopic":  "20",
        "Topic":  "842",
        "URI":  "http://asc.fasb.org/subtopic&trid=77888251"
        },
    "r335":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "3",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(bb)",
        "Topic":  "860",
        "URI":  "http://asc.fasb.org/extlink&oid=109247956&loc=d3e107207-111719"
        },
    "r336":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "3",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(bb)(1)",
        "Topic":  "860",
        "URI":  "http://asc.fasb.org/extlink&oid=109247956&loc=d3e107207-111719"
        },
    "r337":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "3",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(bb)(2)",
        "Topic":  "860",
        "URI":  "http://asc.fasb.org/extlink&oid=109247956&loc=d3e107207-111719"
        },
    "r338":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "3",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "50",
        "Topic":  "860",
        "URI":  "http://asc.fasb.org/extlink&oid=68078379&loc=d3e122625-111746"
        },
    "r339":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "340",
        "Topic":  "928",
        "URI":  "http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004"
        },
    "r34":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02.19-26)",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r340":  {
        "Name":  "Accounting Standards Codification",
        "Publisher":  "FASB",
        "SubTopic":  "320",
        "Topic":  "940",
        "URI":  "http://asc.fasb.org/subtopic&trid=2176304"
        },
    "r341":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "210",
        "Subparagraph":  "(SX 210.9-03(11))",
        "Topic":  "942",
        "URI":  "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
        },
    "r342":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "210",
        "Subparagraph":  "(SX 210.9-03(13))",
        "Topic":  "942",
        "URI":  "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
        },
    "r343":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "210",
        "Subparagraph":  "(SX 210.9-03(15))",
        "Topic":  "942",
        "URI":  "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
        },
    "r344":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "210",
        "Subparagraph":  "(SX 210.9-03(16))",
        "Topic":  "942",
        "URI":  "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
        },
    "r345":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "210",
        "Subparagraph":  "(SX 210.9-03(23))",
        "Topic":  "942",
        "URI":  "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
        },
    "r346":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "210",
        "Subparagraph":  "(SX 210.9-03(4))",
        "Topic":  "942",
        "URI":  "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
        },
    "r347":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "210",
        "Subparagraph":  "(SX 210.9-03(5))",
        "Topic":  "942",
        "URI":  "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
        },
    "r348":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "210",
        "Subparagraph":  "(SX 210.9-03(6)(a)(1))",
        "Topic":  "942",
        "URI":  "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
        },
    "r349":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "210",
        "Subparagraph":  "(SX 210.9-03(6))",
        "Topic":  "942",
        "URI":  "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
        },
    "r35":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02.20)",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r350":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "210",
        "Subparagraph":  "(SX 210.9-03.17)",
        "Topic":  "942",
        "URI":  "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
        },
    "r351":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "220",
        "Subparagraph":  "(SX 210.9-04(22))",
        "Topic":  "942",
        "URI":  "http://asc.fasb.org/extlink&oid=114873765&loc=SL114874048-224260"
        },
    "r352":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "220",
        "Subparagraph":  "(SX 210.9-04.9)",
        "Topic":  "942",
        "URI":  "http://asc.fasb.org/extlink&oid=114873765&loc=SL114874048-224260"
        },
    "r353":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "3",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "320",
        "Subparagraph":  "(a)",
        "Topic":  "942",
        "URI":  "http://asc.fasb.org/extlink&oid=75019621&loc=d3e62586-112803"
        },
    "r354":  {
        "Name":  "Accounting Standards Codification",
        "Publisher":  "FASB",
        "SubTopic":  "320",
        "Topic":  "942",
        "URI":  "http://asc.fasb.org/subtopic&trid=2209399"
        },
    "r355":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "3",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "470",
        "Topic":  "942",
        "URI":  "http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823"
        },
    "r356":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "210",
        "Subparagraph":  "(SX 210.7-03(16))",
        "Topic":  "944",
        "URI":  "http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910"
        },
    "r357":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "210",
        "Subparagraph":  "(SX 210.7-03(a)(1)(g))",
        "Topic":  "944",
        "URI":  "http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910"
        },
    "r358":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "210",
        "Subparagraph":  "(SX 210.7-03(a)(12))",
        "Topic":  "944",
        "URI":  "http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910"
        },
    "r359":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "210",
        "Subparagraph":  "(SX 210.7-03(a)(15))",
        "Topic":  "944",
        "URI":  "http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910"
        },
    "r36":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02.21)",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r360":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "210",
        "Subparagraph":  "(SX 210.7-03(a)(16))",
        "Topic":  "944",
        "URI":  "http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910"
        },
    "r361":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "210",
        "Subparagraph":  "(SX 210.7-03(a)(23)(a)(4))",
        "Topic":  "944",
        "URI":  "http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910"
        },
    "r362":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "210",
        "Subparagraph":  "(SX 210.7-03(a)(25))",
        "Topic":  "944",
        "URI":  "http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910"
        },
    "r363":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "210",
        "Subparagraph":  "(SX 210.7-03(a)(8))",
        "Topic":  "944",
        "URI":  "http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910"
        },
    "r364":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "210",
        "Subparagraph":  "(SX 210.7-03.(a),19)",
        "Topic":  "944",
        "URI":  "http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910"
        },
    "r365":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "210",
        "Subparagraph":  "(SX 210.7-03.1(d))",
        "Topic":  "944",
        "URI":  "http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910"
        },
    "r366":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "220",
        "Subparagraph":  "(SX 210.7-04(18))",
        "Topic":  "944",
        "URI":  "http://asc.fasb.org/extlink&oid=114873790&loc=SL114874131-224263"
        },
    "r367":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4H",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "40",
        "Topic":  "944",
        "URI":  "http://asc.fasb.org/extlink&oid=99384497&loc=SL65671331-158438"
        },
    "r368":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "80",
        "Subparagraph":  "(e)",
        "Topic":  "944",
        "URI":  "http://asc.fasb.org/extlink&oid=6484115&loc=d3e19393-158473"
        },
    "r369":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "320",
        "Subparagraph":  "(SX 210.12-12(2)(i))",
        "Topic":  "946",
        "URI":  "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611133-123010"
        },
    "r37":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02.22(a)(1))",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r370":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "320",
        "Subparagraph":  "(SX 210.12-12C(1)(a))",
        "Topic":  "946",
        "URI":  "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611225-123010"
        },
    "r371":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "5",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "320",
        "Subparagraph":  "(SX 210.12-13(1))",
        "Topic":  "946",
        "URI":  "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611282-123010"
        },
    "r372":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "7",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "320",
        "Subparagraph":  "(SX 210.12-15(Column A))",
        "Topic":  "946",
        "URI":  "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611379-123010"
        },
    "r373":  {
        "Name":  "Accounting Standards Codification",
        "Publisher":  "FASB",
        "SubTopic":  "320",
        "Topic":  "946",
        "URI":  "http://asc.fasb.org/subtopic&trid=2324412"
        },
    "r374":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "310",
        "Subparagraph":  "(SX 210.12-29(Footnote 4))",
        "Topic":  "948",
        "URI":  "http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014"
        },
    "r375":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "360",
        "Subparagraph":  "(SX 210.12-28(Footnote 2))",
        "Topic":  "970",
        "URI":  "http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024"
        },
    "r376":  {
        "Name":  "Exchange Act",
        "Number":  "240",
        "Publisher":  "SEC",
        "Section":  "12",
        "Subsection":  "b"
        },
    "r377":  {
        "Name":  "Exchange Act",
        "Number":  "240",
        "Publisher":  "SEC",
        "Section":  "12",
        "Subsection":  "d1-1"
        },
    "r378":  {
        "Name":  "Form 10-Q",
        "Number":  "240",
        "Publisher":  "SEC",
        "Section":  "13",
        "Subsection":  "a-13"
        },
    "r379":  {
        "Name":  "Forms 10-K, 10-Q, 20-F",
        "Number":  "240",
        "Publisher":  "SEC",
        "Section":  "13",
        "Subsection":  "a-1-"
        },
    "r38":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02.22)",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r380":  {
        "Name":  "Regulation 12B",
        "Number":  "240",
        "Publisher":  "SEC",
        "Section":  "12",
        "Subsection":  "b-2"
        },
    "r381":  {
        "Name":  "Regulation S-T",
        "Number":  "232",
        "Publisher":  "SEC",
        "Section":  "405"
        },
    "r39":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02.24)",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r4":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=82887183&loc=d3e6676-107765"
        },
    "r40":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02.25)",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r41":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02.29-31)",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r42":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02.6(a))",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r43":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02.9)",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r44":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "3",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "20",
        "Subparagraph":  "(c)",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312"
        },
    "r45":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "10",
        "Publisher":  "FASB",
        "Section":  "55",
        "SubTopic":  "20",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313"
        },
    "r46":  {
        "Name":  "Accounting Standards Codification",
        "Publisher":  "FASB",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/topic&trid=2122208"
        },
    "r47":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "10A",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Subparagraph":  "(a)",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=114867106&loc=SL7669646-108580"
        },
    "r48":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "10A",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Subparagraph":  "(d)",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=114867106&loc=SL7669646-108580"
        },
    "r49":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "10A",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Subparagraph":  "(e)",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=114867106&loc=SL7669646-108580"
        },
    "r5":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "3",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=82887183&loc=d3e6801-107765"
        },
    "r50":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "10A",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Subparagraph":  "(f)",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=114867106&loc=SL7669646-108580"
        },
    "r51":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "10A",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=114867106&loc=SL7669646-108580"
        },
    "r52":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "11",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=114867106&loc=d3e637-108580"
        },
    "r53":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "12",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=114867106&loc=d3e640-108580"
        },
    "r54":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "14",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=114867106&loc=d3e681-108580"
        },
    "r55":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "14A",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580"
        },
    "r56":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "17B",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=114867106&loc=SL34724394-108580"
        },
    "r57":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1A",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Subparagraph":  "(a)",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=114867106&loc=SL7669619-108580"
        },
    "r58":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1A",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Subparagraph":  "(b)",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=114867106&loc=SL7669619-108580"
        },
    "r59":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1A",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Subparagraph":  "(c)",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=114867106&loc=SL7669619-108580"
        },
    "r6":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "6",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=82887183&loc=d3e6911-107765"
        },
    "r60":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1B",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Subparagraph":  "(a)",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=114867106&loc=SL7669625-108580"
        },
    "r61":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1B",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Subparagraph":  "(b)",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=114867106&loc=SL7669625-108580"
        },
    "r62":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "5",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=114867106&loc=d3e557-108580"
        },
    "r63":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(210.5-03(11))",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227"
        },
    "r64":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-03(20))",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227"
        },
    "r65":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-03(4))",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227"
        },
    "r66":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-03(8))",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227"
        },
    "r67":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-03.1,2)",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227"
        },
    "r68":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-03.2(a),(d))",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227"
        },
    "r69":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-03.4)",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227"
        },
    "r7":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "8",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=82887183&loc=d3e6935-107765"
        },
    "r70":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-03.7(b))",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227"
        },
    "r71":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-03.8)",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227"
        },
    "r72":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "2",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "8",
        "Topic":  "220",
        "URI":  "http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227"
        },
    "r73":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "11",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "230",
        "URI":  "http://asc.fasb.org/extlink&oid=109223946&loc=d3e3151-108585"
        },
    "r74":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "12",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Subparagraph":  "(a)",
        "Topic":  "230",
        "URI":  "http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585"
        },
    "r75":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "12",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Subparagraph":  "(c)",
        "Topic":  "230",
        "URI":  "http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585"
        },
    "r76":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "13",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Subparagraph":  "(b)",
        "Topic":  "230",
        "URI":  "http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585"
        },
    "r77":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "13",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Subparagraph":  "(c)",
        "Topic":  "230",
        "URI":  "http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585"
        },
    "r78":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "13",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "230",
        "URI":  "http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585"
        },
    "r79":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "14",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Subparagraph":  "(a)",
        "Topic":  "230",
        "URI":  "http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585"
        },
    "r8":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "9",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=82887183&loc=d3e7018-107765"
        },
    "r80":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "14",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Subparagraph":  "(b)",
        "Topic":  "230",
        "URI":  "http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585"
        },
    "r81":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "15",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Subparagraph":  "(b)",
        "Topic":  "230",
        "URI":  "http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585"
        },
    "r82":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "15",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Subparagraph":  "(g)",
        "Topic":  "230",
        "URI":  "http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585"
        },
    "r83":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "17",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Subparagraph":  "(f)",
        "Topic":  "230",
        "URI":  "http://asc.fasb.org/extlink&oid=109223946&loc=d3e3367-108585"
        },
    "r84":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "24",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "230",
        "URI":  "http://asc.fasb.org/extlink&oid=109223946&loc=d3e3521-108585"
        },
    "r85":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "25",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "230",
        "URI":  "http://asc.fasb.org/extlink&oid=109223946&loc=d3e3536-108585"
        },
    "r86":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "28",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Subparagraph":  "(a)",
        "Topic":  "230",
        "URI":  "http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585"
        },
    "r87":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "28",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Subparagraph":  "(b)",
        "Topic":  "230",
        "URI":  "http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585"
        },
    "r88":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "28",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "230",
        "URI":  "http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585"
        },
    "r89":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "4",
        "Publisher":  "FASB",
        "Section":  "45",
        "SubTopic":  "10",
        "Topic":  "230",
        "URI":  "http://asc.fasb.org/extlink&oid=109223946&loc=d3e3044-108585"
        },
    "r9":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.5-02(13))",
        "Topic":  "210",
        "URI":  "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
        },
    "r90":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "3",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "235",
        "URI":  "http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790"
        },
    "r91":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.4-08(h))",
        "Topic":  "235",
        "URI":  "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
        },
    "r92":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.4-08.(e),(f))",
        "Topic":  "235",
        "URI":  "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
        },
    "r93":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.4-08.(h)(1)(i))",
        "Topic":  "235",
        "URI":  "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
        },
    "r94":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.4-08.(n)(2))",
        "Topic":  "235",
        "URI":  "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
        },
    "r95":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "3",
        "Publisher":  "FASB",
        "Section":  "S99",
        "SubTopic":  "10",
        "Subparagraph":  "(SX 210.12-04.(a))",
        "Topic":  "235",
        "URI":  "http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690"
        },
    "r96":  {
        "Name":  "Accounting Standards Codification",
        "Publisher":  "FASB",
        "Topic":  "235",
        "URI":  "http://asc.fasb.org/topic&trid=2122369"
        },
    "r97":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "1",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "250",
        "URI":  "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794"
        },
    "r98":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "11",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "250",
        "URI":  "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794"
        },
    "r99":  {
        "Name":  "Accounting Standards Codification",
        "Paragraph":  "7",
        "Publisher":  "FASB",
        "Section":  "50",
        "SubTopic":  "10",
        "Topic":  "250",
        "URI":  "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22644-107794"
        }
    },
"version":  "2.1"
}

↑Top

Filing Submission 0001125920-19-000022 – Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)

Shutterfly Inc – ‘10-Q’ for 6/30/19 – ‘JSON’

On: Wednesday, 8/7/19, at 5:17pm ET · For: 6/30/19 · Accession #: 1125920-19-22 · File #: 1-33031

Previous ‘10-Q’: ‘10-Q’ on 5/6/19 for 3/31/19 · Latest ‘10-Q’: This Filing

Quarterly Report — Form 10-Q — Sect. 13 / 15(d) – SEA’34Filing Table of Contents

‘JSON’ — XBRL Instance as JSON Data — MetaLinks

This File is an XBRL Instance as JavaScript Object Notation (JSON) Data.

Quarterly Report — Form 10-Q — Sect. 13 / 15(d) – SEA’34
Filing Table of Contents