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Ametek Inc – ‘10-K’ for 12/31/19 – ‘JSON’

On:  Thursday, 2/20/20, at 2:01pm ET   ·   For:  12/31/19   ·   Accession #:  1193125-20-43133   ·   File #:  1-12981

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

 2/20/20  Ametek Inc                        10-K       12/31/19  122:18M                                    Donnelley … Solutions/FA

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

Document/Exhibit                   Description                      Pages   Size 

 1: 10-K        Annual Report                                       HTML   2.02M 
 2: EX-3.2      Articles of Incorporation/Organization or Bylaws    HTML    160K 
 3: EX-21       Subsidiaries List                                   HTML     98K 
 4: EX-23       Consent of Experts or Counsel                       HTML     37K 
 5: EX-31.1     Certification -- §302 - SOA'02                      HTML     41K 
 6: EX-31.2     Certification -- §302 - SOA'02                      HTML     41K 
 7: EX-32.1     Certification -- §906 - SOA'02                      HTML     36K 
 8: EX-32.2     Certification -- §906 - SOA'02                      HTML     36K 
81: R1          Cover Page                                          HTML     96K 
39: R2          Consolidated Statement of Income                    HTML     85K 
57: R3          Consolidated Statement of Comprehensive Income      HTML     80K 
116: R4          Consolidated Statement of Comprehensive Income      HTML     50K  
                (Parenthetical)                                                  
79: R5          Consolidated Balance Sheet                          HTML    122K 
37: R6          Consolidated Balance Sheet (Parenthetical)          HTML     52K 
54: R7          Consolidated Statement of Stockholders' Equity      HTML    112K 
119: R8          Consolidated Statement of Stockholders' Equity      HTML     51K  
                (Parenthetical)                                                  
77: R9          Consolidated Statement of Cash Flows                HTML    117K 
52: R10         Significant Accounting Policies                     HTML     82K 
34: R11         Recent Accounting Pronouncements                    HTML     54K 
84: R12         Revenues                                            HTML    284K 
122: R13         Fair Value Measurements                             HTML     63K  
51: R14         Hedging Activities                                  HTML     41K 
33: R15         Acquisitions                                        HTML     77K 
83: R16         Goodwill and Other Intangible Assets                HTML    121K 
121: R17         Other Consolidated Balance Sheet Information        HTML    114K  
50: R18         Income Taxes                                        HTML    206K 
35: R19         Debt                                                HTML    104K 
86: R20         Share-Based Compensation                            HTML    160K 
97: R21         Retirement Plans and Other Postretirement Benefits  HTML    444K 
59: R22         Contingencies                                       HTML     52K 
15: R23         Leases and Other Commitments                        HTML     90K 
85: R24         Reportable Segments and Geographic Areas            HTML    145K 
                Information                                                      
96: R25         Additional Consolidated Income Statement and Cash   HTML     38K 
                Flow Information                                                 
58: R26         Stockholders' Equity                                HTML     42K 
14: R27         Quarterly Financial Data                            HTML    115K 
87: R28         Significant Accounting Policies (Policies)          HTML    133K 
95: R29         Significant Accounting Policies (Tables)            HTML     55K 
117: R30         Revenues (Tables)                                   HTML    280K  
80: R31         Fair Value Measurements (Tables)                    HTML     57K 
36: R32         Acquisitions (Tables)                               HTML     66K 
53: R33         Goodwill and Other Intangible Assets (Tables)       HTML    123K 
118: R34         Other Consolidated Balance Sheet Information        HTML    114K  
                (Tables)                                                         
82: R35         Income Taxes (Tables)                               HTML    196K 
38: R36         Debt (Tables)                                       HTML     93K 
56: R37         Share-Based Compensation (Tables)                   HTML    157K 
120: R38         Retirement Plans and Other Postretirement Benefits  HTML    450K  
                (Tables)                                                         
78: R39         Reportable Segments and Geographic Areas            HTML    145K 
                Information (Tables)                                             
103: R40         Leases and Other Commitments (Tables)               HTML     85K  
93: R41         Quarterly Financial Data (Tables)                   HTML    115K 
16: R42         Significant Accounting Policies - Additional        HTML     87K 
                Information (Detail)                                             
60: R43         Significant Accounting Policies - Number of         HTML     44K 
                Weighted Average Shares (Detail)                                 
104: R44         Recent Accounting Pronouncements - Additional       HTML     42K  
                Information (Detail)                                             
94: R45         Revenues - Outstanding Contract Asset and           HTML     48K 
                (Liability) Accounts (Detail)                                    
17: R46         Revenues - Additional Information (Detail)          HTML     46K 
61: R47         Revenues - Information about Operations in          HTML     99K 
                Different Geographic Areas (Detail)                              
105: R48         Revenues - Information about Operations in          HTML     44K  
                Different Geographic Areas (Parenthetical)                       
                (Detail)                                                         
92: R49         Revenues - Major Products and Services in           HTML     65K 
                Reportable Segments (Detail)                                     
75: R50         Revenues - Timing of Revenue Recognition (Detail)   HTML     62K 
115: R51         Revenues - Changes in Accrued Product Warranty      HTML     43K  
                Obligation (Detail)                                              
41: R52         Fair Value Measurements - Fair Value of Assets      HTML     39K 
                Measured on Recurring Basis (Detail)                             
25: R53         Fair Value Measurements - Additional Information    HTML     48K 
                (Detail)                                                         
74: R54         Fair Value Measurements - Fair Value Disclosures    HTML     41K 
                of Financial Instrument Liabilities (Detail)                     
113: R55         Hedging Activities - Additional Information         HTML     49K  
                (Detail)                                                         
40: R56         Acquisitions - Additional Information (Detail)      HTML    129K 
24: R57         Acquisitions - Allocation of Aggregate Purchase     HTML     69K 
                Price of Acquired Net Assets (Detail)                            
76: R58         Acquisitions - Allocation of Aggregate Purchase     HTML     43K 
                Price of Acquired Net Assets (Parenthetical)                     
                (Detail)                                                         
112: R59         Goodwill and Other Intangible Assets - Changes in   HTML     53K  
                Carrying Amounts of Goodwill by Segment (Detail)                 
66: R60         Goodwill and Other Intangible Assets - Other        HTML     57K 
                Intangible Assets (Detail)                                       
20: R61         Goodwill and Intangible Assets - Additional         HTML     52K 
                Information (Detail)                                             
90: R62         Other Consolidated Balance Sheet Information -      HTML    104K 
                Other Consolidated Balance Sheet Information                     
                (Detail)                                                         
101: R63         Income Taxes - Components of Income before Income   HTML     78K  
                Taxes and Details of Provision for Income Taxes                  
                (Detail)                                                         
65: R64         Income Taxes - Components of Deferred Tax (Asset)   HTML     80K 
                Liability (Detail)                                               
19: R65         Income Taxes - Reconciliation of Effective Tax      HTML     66K 
                Rate to U.S. Federal Statutory Rate (Detail)                     
89: R66         Income Taxes - Additional Information (Detail)      HTML    127K 
100: R67         Income Taxes - Reconciliation of Liability for      HTML     51K  
                Uncertain Tax Positions (Detail)                                 
62: R68         Debt - Long-term Debt (Detail)                      HTML     95K 
22: R69         Debt - Long-term Debt (Parenthetical) (Detail)      HTML    109K 
30: R70         Debt - Additional Information (Detail)              HTML     82K 
44: R71         Debt - Additional Information 1 (Detail)            HTML    142K 
108: R72         Debt - Additional Information 2 (Detail)            HTML     62K  
70: R73         Share-Based Compensation - Additional Information   HTML    104K 
                (Detail)                                                         
31: R74         Share-Based Compensation - Total Share-Based        HTML     44K 
                Compensation Expense (Detail)                                    
45: R75         Share-Based Compensation - Weighted Average         HTML     50K 
                Assumptions Used for Estimating Fair Values of                   
                Stock Options Granted (Detail)                                   
109: R76         Share-Based Compensation - Summary of Stock Option  HTML     76K  
                Activity and Related Information (Detail)                        
71: R77         Share-Based Compensation - Summary of Nonvested     HTML     53K 
                Stock Option Activity and Related Information                    
                (Detail)                                                         
27: R78         Share-Based Compensation - Summary of Nonvested     HTML     59K 
                Restricted Stock Activity and Related Information                
                (Detail)                                                         
49: R79         Retirement Plans and Other Postretirement Benefits  HTML    102K 
                - Additional Information (Detail)                                
29: R80         Retirement Plans and Other Postretirement Benefits  HTML     98K 
                - Net Projected Benefit Obligation and Fair Value                
                of Plan Assets for Funded and Unfunded Defined                   
                Benefit Plans (Detail)                                           
42: R81         Retirement Plans and Other Postretirement Benefits  HTML     48K 
                - Accumulated Benefit Obligation ("Abo") (Detail)                
106: R82         Retirement Plans and Other Postretirement Benefits  HTML     45K  
                - Weighted Average Assumptions Used to Determine                 
                Benefit Obligations (Detail)                                     
69: R83         Retirement Plans and Other Postretirement Benefits  HTML     73K 
                - Fair Value of Plan Assets (Detail)                             
32: R84         Retirement Plans and Other Postretirement Benefits  HTML     53K 
                - Fair Value of Plan Assets for Foreign Defined                  
                Benefit Pension Plans (Detail)                                   
46: R85         Retirement Plans and Other Postretirement Benefits  HTML     59K 
                - Summary of Changes of Fair Value of Foreign                    
                Plans' Investments Using Significant Unobservable                
                Inputs (Detail)                                                  
111: R86         Retirement Plans and Other Postretirement Benefits  HTML     52K  
                - Defined Benefit Plan, Plans with Benefit                       
                Obligations in Excess of Plan Assets (Detail)                    
72: R87         Retirement Plans and Other Postretirement Benefits  HTML     62K 
                - Funded Status of Plan and Amounts Recognized in                
                Balance Sheet (Detail)                                           
26: R88         Retirement Plans and Other Postretirement Benefits  HTML     46K 
                - Amounts Recognized in Accumulated Other                        
                Comprehensive Income, Net of Taxes (Detail)                      
48: R89         Retirement Plans and Other Postretirement Benefits  HTML     71K 
                - Components of Net Periodic Pension Benefit                     
                Expense (Income) (Detail)                                        
67: R90         Retirement Plans and Other Postretirement Benefits  HTML     48K 
                - Weighted Average Assumptions Used to Determine                 
                Net Periodic Pension Benefit Expense (Detail)                    
21: R91         Contingencies - Additional Information (Detail)     HTML     54K 
91: R92         Leases and Other Commitments - Additional           HTML     44K 
                Information (Detail)                                             
102: R93         Leases and Other Commitments - Components of Lease  HTML     42K  
                Expense (Detail)                                                 
64: R94         Leases and Other Commitments - Supplemental         HTML     43K 
                Balance Sheet Information Related to Leases                      
                (Detail)                                                         
18: R95         Leases and Other Commitments - Supplemental Cash    HTML     45K 
                Flow Information Related to Leases (Detail)                      
88: R96         Leases and Other Commitments - Maturities of lease  HTML     54K 
                liabilities (Detail)                                             
99: R97         Reportable Segments and Geographic Areas            HTML     36K 
                Information - Additional Information (Detail)                    
63: R98         Reportable Segments and Geographic Areas            HTML     90K 
                Information - Reportable Segment Financial                       
                Information (Detail)                                             
23: R99         Reportable Segments and Geographic Areas            HTML     37K 
                Information - Reportable Segment Financial                       
                Information (Parenthetical) (Detail)                             
68: R100        Reportable Segments and Geographic Areas            HTML     52K 
                Information - Information about Company's                        
                Operations in Different Geographic Areas (Detail)                
107: R101        Additional Consolidated Income Statement and Cash   HTML     44K  
                Flow Information - Additional Information (Detail)               
43: R102        Stockholders' Equity - Additional Information       HTML     63K 
                (Detail)                                                         
28: R103        Quarterly Financial Data - Quarterly Financial      HTML     62K 
                Data (Detail)                                                    
73: R104        Quarterly Financial Data - Quarterly Financial      HTML     38K 
                Data (Parenthetical) (Detail)                                    
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                "xbrltype":  "dateItemType"
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                    "r593"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Boolean flag that is true only for a form used as a transition report.",
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                            }
                        }
                    },
                "localname":  "DocumentTransitionReport",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
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                    "http://www.amtexinc.com/role/CoverPage"
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                "xbrltype":  "booleanItemType"
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            "dei_DocumentType":  {
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                    ],
                "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"
                            }
                        }
                    },
                "localname":  "DocumentType",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
                    "http://www.amtexinc.com/role/CoverPage"
                    ],
                "xbrltype":  "submissionTypeItemType"
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            "dei_EntityAddressAddressLine1":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Address Line 1 such as Attn, Building Name, Street Name",
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                        }
                    },
                "localname":  "EntityAddressAddressLine1",
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                "xbrltype":  "normalizedStringItemType"
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            "dei_EntityAddressCityOrTown":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Name of the City or Town",
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                        }
                    },
                "localname":  "EntityAddressCityOrTown",
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                "xbrltype":  "normalizedStringItemType"
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                    "en-US":  {
                        "role":  {
                            "documentation":  "Code for the postal or zip code",
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                        }
                    },
                "localname":  "EntityAddressPostalZipCode",
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                "xbrltype":  "normalizedStringItemType"
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                            "documentation":  "Name of the state or province.",
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                        }
                    },
                "localname":  "EntityAddressStateOrProvince",
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                "xbrltype":  "stateOrProvinceItemType"
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                    "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.",
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                            }
                        }
                    },
                "localname":  "EntityCentralIndexKey",
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                            }
                        }
                    },
                "localname":  "EntityCommonStockSharesOutstanding",
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                "xbrltype":  "sharesItemType"
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                    "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.",
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                        }
                    },
                "localname":  "EntityCurrentReportingStatus",
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                    "en-US":  {
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                            "documentation":  "Indicate if registrant meets the emerging growth company criteria.",
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                        }
                    },
                "localname":  "EntityEmergingGrowthCompany",
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                "xbrltype":  "booleanItemType"
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                            }
                        }
                    },
                "localname":  "EntityFileNumber",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
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                            }
                        }
                    },
                "localname":  "EntityFilerCategory",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
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                            "documentation":  "Two-character EDGAR code representing the state or country of incorporation.",
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                            }
                        }
                    },
                "localname":  "EntityIncorporationStateCountryCode",
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                "xbrltype":  "edgarStateCountryItemType"
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                "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).",
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                            }
                        }
                    },
                "localname":  "EntityInteractiveDataCurrent",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
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                    ],
                "xbrltype":  "yesNoItemType"
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                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant's most recently completed second fiscal quarter.",
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                            }
                        }
                    },
                "localname":  "EntityPublicFloat",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
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                    ],
                "xbrltype":  "monetaryItemType"
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                "lang":  {
                    "en-US":  {
                        "role":  {
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                            }
                        }
                    },
                "localname":  "EntityRegistrantName",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
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                    ],
                "xbrltype":  "normalizedStringItemType"
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                    ],
                "lang":  {
                    "en-US":  {
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                            "documentation":  "Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act.",
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                            }
                        }
                    },
                "localname":  "EntityShellCompany",
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                    ],
                "xbrltype":  "booleanItemType"
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                "lang":  {
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                            }
                        }
                    },
                "localname":  "EntitySmallBusiness",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
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                "xbrltype":  "booleanItemType"
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                    ],
                "lang":  {
                    "en-US":  {
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                            }
                        }
                    },
                "localname":  "EntityTaxIdentificationNumber",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
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                "xbrltype":  "employerIdItemType"
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                "lang":  {
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                            }
                        }
                    },
                "localname":  "EntityVoluntaryFilers",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
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                            "documentation":  "Indicate 'Yes' or 'No' if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.  Is used on Form Type: 10-K, 10-Q, 8-K, 20-F, 6-K, 10-K/A, 10-Q/A, 20-F/A, 6-K/A, N-CSR, N-Q, N-1A.",
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                        }
                    },
                "localname":  "EntityWellKnownSeasonedIssuer",
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                    ],
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                        }
                    },
                "localname":  "LocalPhoneNumber",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
                "presentation":  [
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                    ],
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                        }
                    },
                "localname":  "Security12bTitle",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
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                        }
                    },
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                        }
                    },
                "localname":  "TradingSymbol",
                "nsuri":  "http://xbrl.sec.gov/dei/2019-01-31",
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                "xbrltype":  "tradingSymbolItemType"
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                        "role":  {
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                        }
                    },
                "localname":  "AsiaMember",
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                        }
                    },
                "localname":  "BoardOfDirectorsChairmanMember",
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                "lang":  {
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                            "terseLabel":  "Consolidation Items [Axis]"
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                        }
                    },
                "localname":  "ConsolidationItemsAxis",
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                "auth_ref":  [
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                            "documentation":  "Amount classified as liabilities attributable to disposal group held for sale or disposed of.",
                            "label":  "Disposal Group, Including Discontinued Operation, Liabilities",
                            "terseLabel":  "Liabilities held for sale"
                            }
                        }
                    },
                "localname":  "LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation",
                "nsuri":  "http://fasb.org/us-gaap/2019-01-31",
                "presentation":  [
                    "http://www.amtexinc.com/role/AcquisitionsAdditionalInformationDetail"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LineOfCredit":  {
                "auth_ref":  [
                    "r22",
                    "r556",
                    "r564"
                    ],
                "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":  "Borrowings outstanding"
                            }
                        }
                    },
                "localname":  "LineOfCredit",
                "nsuri":  "http://fasb.org/us-gaap/2019-01-31",
                "presentation":  [
                    "http://www.amtexinc.com/role/DebtAdditionalInformation2Detail"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity":  {
                "auth_ref":  [
                    "r45"
                    ],
                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.",
                            "label":  "Line of Credit Facility, Current Borrowing Capacity",
                            "terseLabel":  "Available borrowing capacity under revolving credit facility"
                            }
                        }
                    },
                "localname":  "LineOfCreditFacilityCurrentBorrowingCapacity",
                "nsuri":  "http://fasb.org/us-gaap/2019-01-31",
                "presentation":  [
                    "http://www.amtexinc.com/role/DebtAdditionalInformation2Detail"
                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LineOfCreditFacilityExpirationDate1":  {
                "auth_ref":  [
                    "r45"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Date the credit facility terminates, in CCYY-MM-DD format.",
                            "label":  "Line of Credit Facility, Expiration Date",
                            "terseLabel":  "Revolving credit facility expiration date"
                            }
                        }
                    },
                "localname":  "LineOfCreditFacilityExpirationDate1",
                "nsuri":  "http://fasb.org/us-gaap/2019-01-31",
                "presentation":  [
                    "http://www.amtexinc.com/role/DebtAdditionalInformation2Detail"
                    ],
                "xbrltype":  "dateItemType"
                },
            "us-gaap_LineOfCreditFacilityExpirationPeriod":  {
                "auth_ref":  [
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
                            "label":  "Line of Credit Facility, Expiration Period",
                            "terseLabel":  "Revolving credit facility expiration period"
                            }
                        }
                    },
                "localname":  "LineOfCreditFacilityExpirationPeriod",
                "nsuri":  "http://fasb.org/us-gaap/2019-01-31",
                "presentation":  [
                    "http://www.amtexinc.com/role/DebtAdditionalInformation2Detail"
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                "xbrltype":  "durationItemType"
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            "us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd":  {
                "auth_ref":  [
                    "r45"
                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The effective interest rate at the end of the reporting period.",
                            "label":  "Line of Credit Facility, Interest Rate at Period End",
                            "terseLabel":  "Percentage of weighted average interest rate on revolving credit facility"
                            }
                        }
                    },
                "localname":  "LineOfCreditFacilityInterestRateAtPeriodEnd",
                "nsuri":  "http://fasb.org/us-gaap/2019-01-31",
                "presentation":  [
                    "http://www.amtexinc.com/role/DebtAdditionalInformation2Detail"
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                "xbrltype":  "percentItemType"
                },
            "us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity":  {
                "auth_ref":  [
                    "r45"
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                "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":  "Total borrowing capacity under revolving credit facility"
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                        }
                    },
                "localname":  "LineOfCreditFacilityMaximumBorrowingCapacity",
                "nsuri":  "http://fasb.org/us-gaap/2019-01-31",
                "presentation":  [
                    "http://www.amtexinc.com/role/DebtAdditionalInformation2Detail"
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                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LongTermDebt":  {
                "auth_ref":  [
                    "r22",
                    "r263",
                    "r556",
                    "r570"
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                "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",
                            "verboseLabel":  "Total debt, net"
                            }
                        }
                    },
                "localname":  "LongTermDebt",
                "nsuri":  "http://fasb.org/us-gaap/2019-01-31",
                "presentation":  [
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                "xbrltype":  "monetaryItemType"
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            "us-gaap_LongTermDebtFairValue":  {
                "auth_ref":  [
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                "crdr":  "credit",
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure.  Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.  The element may be used in both the balance sheet and disclosure in the same submission.",
                            "label":  "Long-term Debt, Fair Value",
                            "negatedLabel":  "Long-term debt, net (including current portion)"
                            }
                        }
                    },
                "localname":  "LongTermDebtFairValue",
                "nsuri":  "http://fasb.org/us-gaap/2019-01-31",
                "presentation":  [
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                "xbrltype":  "monetaryItemType"
                },
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                "auth_ref":  [
                    "r133",
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                "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",
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                        }
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                "presentation":  [
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                "xbrltype":  "monetaryItemType"
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                    "r133",
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                            "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 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.",
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                    "r133",
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                "crdr":  "credit",
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                        "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.",
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                    },
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                "presentation":  [
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                "xbrltype":  "monetaryItemType"
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            "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour":  {
                "auth_ref":  [
                    "r133",
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                    ],
                "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":  "Maturities of long-term debt outstanding in 2024"
                            }
                        }
                    },
                "localname":  "LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour",
                "nsuri":  "http://fasb.org/us-gaap/2019-01-31",
                "presentation":  [
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                "xbrltype":  "monetaryItemType"
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            "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree":  {
                "auth_ref":  [
                    "r133",
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                "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.",
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                    },
                "localname":  "LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree",
                "nsuri":  "http://fasb.org/us-gaap/2019-01-31",
                "presentation":  [
                    "http://www.amtexinc.com/role/DebtAdditionalInformationDetail"
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                "xbrltype":  "monetaryItemType"
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                "auth_ref":  [
                    "r133",
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                    ],
                "crdr":  "credit",
                "lang":  {
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                        "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":  "Maturities of long-term debt outstanding in 2022"
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                    },
                "localname":  "LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo",
                "nsuri":  "http://fasb.org/us-gaap/2019-01-31",
                "presentation":  [
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                    ],
                "xbrltype":  "monetaryItemType"
                },
            "us-gaap_LongTermDebtNoncurrent":  {
                "auth_ref":  [
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                "crdr":  "credit",
                "lang":  {
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                        "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.",
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                            "verboseLabel":  "Total long-term debt, net"
                            }
                        }
                    },
                "localname":  "LongTermDebtNoncurrent",
                "nsuri":  "http://fasb.org/us-gaap/2019-01-31",
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            "us-gaap_LongTermInvestments":  {
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                "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).",
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                            "terseLabel":  "Mutual fund investments"
                            }
                        }
                    },
                "localname":  "LongTermInvestments",
                "nsuri":  "http://fasb.org/us-gaap/2019-01-31",
                "presentation":  [
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            "us-gaap_LongtermDebtTypeAxis":  {
                "auth_ref":  [
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                    ],
                "lang":  {
                    "en-US":  {
                        "role":  {
                            "documentation":  "Information by type of long-term debt.",
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                            "terseLabel":  "Long-term Debt, Type [Axis]"
                            }
                        }
                    },
                "localname":  "LongtermDebtTypeAxis",
                "nsuri":  "http://fasb.org/us-gaap/2019-01-31",
                "presentation":  [
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            "us-gaap_LongtermDebtTypeDomain":  {
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                    "r261"
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                "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.",
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                            "terseLabel":  "Long-term Debt, Type [Domain]"
                            }
                        }
                    },
                "localname":  "LongtermDebtTypeDomain",
                "nsuri":  "http://fasb.org/us-gaap/2019-01-31",
                "presentation":  [
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            "us-gaap_LongtermDebtWeightedAverageInterestRate":  {
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                    "en-US":  {
                        "role":  {
                            "documentation":  "Weighted average interest rate of long-term debt outstanding calculated at point in time.",
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                            "terseLabel":  "Weighted average interest rate on total debt borrowings outstanding"
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                        }
                    },
                "localname":  "LongtermDebtWeightedAverageInterestRate",
                "nsuri":  "http://fasb.org/us-gaap/2019-01-31",
                "presentation":  [
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                "xbrltype":  "percentItemType"
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                "auth_ref":  [
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                    "r241",
                    "r242",
                    "r243",
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                            "documentation":  "Information by type of existing condition, situation, or set of circumstances involving uncertainty as to possible loss to an enterprise that will ultimately be resolved when one or more future events occur or fail to occur.",
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                            "terseLabel":  "Loss Contingency Nature [Axis]"
                            }
                        }
                    },
                "localname":  "LossContingenciesByNatureOfContingencyAxis",
                "nsuri":  "http://fasb.org/us-gaap/2019-01-31",
                "presentation":  [
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                    "r241",
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                    "r243",
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}

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