SEC Info℠  
    Home      Search      My Interests      Help      Sign In      Please Sign In

Atel 14, LLC – ‘10-K’ for 12/31/23 – ‘XML’

On:  Wednesday, 3/20/24, at 6:24pm ET   ·   As of:  3/21/24   ·   For:  12/31/23   ·   Accession #:  1558370-24-3647   ·   File #:  0-54356

Previous ‘10-K’:  ‘10-K’ on 3/15/23 for 12/31/22   ·   Latest ‘10-K’:  This Filing   ·   1 Reference:  To:  Atel 14, LLC – ‘424B3’ on 10/8/09

Find Words in Filings emoji
 		  in    Show  and   ↓Hints

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

 3/21/24  Atel 14, LLC                      10-K       12/31/23   65:5.4M                                   Toppan Merrill Bridge/FA

Annual Report   —   Form 10-K   —   SEA’34

Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-K        Annual Report                                       HTML   1.29M 
 2: EX-4.1      Instrument Defining the Rights of Security Holders  HTML     21K 
 3: EX-14.1     Code of Ethics                                      HTML     27K 
 4: EX-31.1     Certification -- §302 - SOA'02                      HTML     24K 
 5: EX-31.2     Certification -- §302 - SOA'02                      HTML     24K 
 6: EX-32.1     Certification -- §906 - SOA'02                      HTML     21K 
 7: EX-32.2     Certification -- §906 - SOA'02                      HTML     21K 
13: R1          Document and Entity Information                     HTML     87K 
14: R2          Balance Sheets                                      HTML     81K 
15: R3          Statements of Operations                            HTML    101K 
16: R4          Statements of Changes in Members' Capital           HTML     49K 
17: R5          Statements of Changes in Members' Capital           HTML     22K 
                (Parenthetical)                                                  
18: R6          Statements of Cash Flows                            HTML     96K 
19: R7          Organization and Limited Liability Company Matters  HTML     26K 
20: R8          Summary of Significant Accounting Policies          HTML     70K 
21: R9          Concentration of Credit Risk and Major Customers    HTML     50K 
22: R10         Investment in equipment and leases, net             HTML     94K 
23: R11         Allowance for Doubtful Accounts                     HTML     32K 
24: R12         Related Party Transactions                          HTML     38K 
25: R13         Non-Recourse Debt                                   HTML     32K 
26: R14         Commitments                                         HTML     21K 
27: R15         Guarantees                                          HTML     24K 
28: R16         Members' Capital                                    HTML     32K 
29: R17         Fair Value Measurements                             HTML    121K 
30: R18         Summary of Significant Accounting Policies          HTML    105K 
                (Policies)                                                       
31: R19         Summary of Significant Accounting Policies          HTML     49K 
                (Tables)                                                         
32: R20         Concentration of Credit Risk and Major Customers    HTML     52K 
                (Tables)                                                         
33: R21         Investment in equipment and leases, net (Tables)    HTML     96K 
34: R22         Allowance for Doubtful Accounts (Tables)            HTML     31K 
35: R23         Related Party Transactions (Tables)                 HTML     31K 
36: R24         Non-Recourse Debt (Tables)                          HTML     29K 
37: R25         Members' Capital (Tables)                           HTML     29K 
38: R26         Fair Value Measurements (Tables)                    HTML    116K 
39: R27         Organization and Limited Liability Company Matters  HTML     53K 
                (Narrative) (Details)                                            
40: R28         Summary of Significant Accounting Policies          HTML     58K 
                (Narrative) (Details)                                            
41: R29         Summary of Significant Accounting Policies          HTML     26K 
                (Schedule of Differences Between Book Value and                  
                Tax Basis of Net Assets) (Details)                               
42: R30         Summary of Significant Accounting Policies          HTML     44K 
                (Reconciliation of Net Income (Loss) Reported in                 
                Financial Statements and Federal Tax Return)                     
                (Details)                                                        
43: R31         Concentration of Credit Risk and Major Customers    HTML     43K 
                (Schedule of Leasing and Lending Revenues)                       
                (Details)                                                        
44: R32         Investment in equipment and leases, net             HTML     30K 
                (Narrative) (Details)                                            
45: R33         Investment in equipment and leases, net             HTML     36K 
                (Investment in Leases) (Details)                                 
46: R34         Investment in equipment and leases, net (Property   HTML     57K 
                on Operating Leases) (Details)                                   
47: R35         Investment in equipment and leases, net (Schedule   HTML     44K 
                of Useful Lives of Lease Assets) (Details)                       
48: R36         Allowance for Doubtful Accounts (Activity in        HTML     27K 
                Allowance for Doubtful Accounts) (Details)                       
49: R37         Related Party Transactions (Managing Member and     HTML     33K 
                Affiliates Earned Commissions and Billed for                     
                Reimbursements Pursuant to Operating Agreement)                  
                (Details)                                                        
50: R38         Non-Recourse Debt (Narrative) (Details)             HTML     56K 
51: R39         Non-Recourse Debt (Future Minimum Payments of       HTML     32K 
                Non-Recourse Debt) (Details)                                     
52: R40         Commitments (Narrative) (Details)                   HTML     21K 
53: R41         Members' Capital (Narrative) (Details)              HTML     44K 
54: R42         Members' Capital (Distributions to Other Members)   HTML     29K 
                (Details)                                                        
55: R43         Fair Value Measurements (Narrative) (Details)       HTML     21K 
56: R44         Fair Value Measurements (Fair Value Measurement of  HTML     26K 
                Impaired Assets at Fair Value on Non-Recurring                   
                Basis) (Details)                                                 
57: R45         Fair Value Measurements (Summary of Valuation       HTML     34K 
                Techniques and Significant Unobservable Inputs                   
                Used) (Details)                                                  
58: R46         Fair Value Measurements (Estimated Fair Values of   HTML     40K 
                Financial Instruments) (Details)                                 
59: R47         Pay vs Performance Disclosure                       HTML     31K 
60: R48         Insider Trading Arrangements                        HTML     25K 
62: XML         IDEA XML File -- Filing Summary                      XML    116K 
65: XML         XBRL Instance -- tmb-20231231x10k_htm                XML   1.13M 
61: EXCEL       IDEA Workbook of Financial Report Info              XLSX    101K 
 9: EX-101.CAL  XBRL Calculations -- tmb-20231231_cal                XML    129K 
10: EX-101.DEF  XBRL Definitions -- tmb-20231231_def                 XML    444K 
11: EX-101.LAB  XBRL Labels -- tmb-20231231_lab                      XML    856K 
12: EX-101.PRE  XBRL Presentations -- tmb-20231231_pre               XML    640K 
 8: EX-101.SCH  XBRL Schema -- tmb-20231231                          XSD    151K 
63: JSON        XBRL Instance as JSON Data -- MetaLinks              341±   498K 
64: ZIP         XBRL Zipped Folder -- 0001558370-24-003647-xbrl      Zip    245K

‘XML’   —   IDEA XML File — Filing Summary

This Document is an IDEA XML File.

                                                                                                                                                                                
<?xml version="1.0" encoding="windows-1252"?>
<FilingSummary>
<Version> 3.24.1 </Version>
<ProcessingTime/>
<ReportFormat> html </ReportFormat>
<ContextCount> 108 </ContextCount>
<ElementCount> 216 </ElementCount>
<EntityCount> 1 </EntityCount>
<FootnotesReported> false </FootnotesReported>
<SegmentCount> 43 </SegmentCount>
<ScenarioCount> 0 </ScenarioCount>
<TuplesReported> false </TuplesReported>
<UnitCount> 5 </UnitCount>
<MyReports>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R1.htm </HtmlFileName>
<LongName> 00090 - Document - Document and Entity Information </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DocumentDocumentAndEntityInformation </Role>
<ShortName> Document and Entity Information </ShortName>
<MenuCategory> Cover </MenuCategory>
<Position> 1 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R2.htm </HtmlFileName>
<LongName> 00100 - Statement - Balance Sheets </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/StatementBalanceSheets </Role>
<ShortName> Balance Sheets </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 2 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R3.htm </HtmlFileName>
<LongName> 00200 - Statement - Statements of Operations </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/StatementStatementsOfOperations </Role>
<ShortName> Statements of Operations </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 3 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R4.htm </HtmlFileName>
<LongName> 00300 - Statement - Statements of Changes in Members' Capital </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/StatementStatementsOfChangesInMembersCapital </Role>
<ShortName> Statements of Changes in Members' Capital </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 4 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R5.htm </HtmlFileName>
<LongName> 00305 - Statement - Statements of Changes in Members' Capital (Parenthetical) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/StatementStatementsOfChangesInMembersCapitalParenthetical </Role>
<ShortName> Statements of Changes in Members' Capital (Parenthetical) </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 5 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R6.htm </HtmlFileName>
<LongName> 00400 - Statement - Statements of Cash Flows </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/StatementStatementsOfCashFlows </Role>
<ShortName> Statements of Cash Flows </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 6 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R7.htm </HtmlFileName>
<LongName> 10101 - Disclosure - Organization and Limited Liability Company Matters </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureOrganizationAndLimitedLiabilityCompanyMatters </Role>
<ShortName> Organization and Limited Liability Company Matters </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 7 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R8.htm </HtmlFileName>
<LongName> 10201 - Disclosure - Summary of Significant Accounting Policies </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureSummaryOfSignificantAccountingPolicies </Role>
<ShortName> Summary of Significant Accounting Policies </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 8 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R9.htm </HtmlFileName>
<LongName> 10301 - Disclosure - Concentration of Credit Risk and Major Customers </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureConcentrationOfCreditRiskAndMajorCustomers </Role>
<ShortName> Concentration of Credit Risk and Major Customers </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 9 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R10.htm </HtmlFileName>
<LongName> 10401 - Disclosure - Investment in equipment and leases, net </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureInvestmentInEquipmentAndLeasesNet </Role>
<ShortName> Investment in equipment and leases, net </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 10 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R11.htm </HtmlFileName>
<LongName> 10501 - Disclosure - Allowance for Doubtful Accounts </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureAllowanceForDoubtfulAccounts </Role>
<ShortName> Allowance for Doubtful Accounts </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 11 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R12.htm </HtmlFileName>
<LongName> 10601 - Disclosure - Related Party Transactions </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureRelatedPartyTransactions </Role>
<ShortName> Related Party Transactions </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 12 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R13.htm </HtmlFileName>
<LongName> 10701 - Disclosure - Non-Recourse Debt </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureNonRecourseDebt </Role>
<ShortName> Non-Recourse Debt </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 13 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R14.htm </HtmlFileName>
<LongName> 10801 - Disclosure - Commitments </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureCommitments </Role>
<ShortName> Commitments </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 14 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R15.htm </HtmlFileName>
<LongName> 10901 - Disclosure - Guarantees </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureGuarantees </Role>
<ShortName> Guarantees </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 15 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R16.htm </HtmlFileName>
<LongName> 11001 - Disclosure - Members' Capital </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureMembersCapital </Role>
<ShortName> Members' Capital </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 16 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R17.htm </HtmlFileName>
<LongName> 11101 - Disclosure - Fair Value Measurements </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureFairValueMeasurements </Role>
<ShortName> Fair Value Measurements </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 17 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R18.htm </HtmlFileName>
<LongName> 20202 - Disclosure - Summary of Significant Accounting Policies (Policies) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies </Role>
<ShortName> Summary of Significant Accounting Policies (Policies) </ShortName>
<MenuCategory> Policies </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureSummaryOfSignificantAccountingPolicies </ParentRole>
<Position> 18 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R19.htm </HtmlFileName>
<LongName> 30203 - Disclosure - Summary of Significant Accounting Policies (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTables </Role>
<ShortName> Summary of Significant Accounting Policies (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureSummaryOfSignificantAccountingPolicies </ParentRole>
<Position> 19 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R20.htm </HtmlFileName>
<LongName> 30303 - Disclosure - Concentration of Credit Risk and Major Customers (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureConcentrationOfCreditRiskAndMajorCustomersTables </Role>
<ShortName> Concentration of Credit Risk and Major Customers (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureConcentrationOfCreditRiskAndMajorCustomers </ParentRole>
<Position> 20 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R21.htm </HtmlFileName>
<LongName> 30403 - Disclosure - Investment in equipment and leases, net (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureInvestmentInEquipmentAndLeasesNetTables </Role>
<ShortName> Investment in equipment and leases, net (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureInvestmentInEquipmentAndLeasesNet </ParentRole>
<Position> 21 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R22.htm </HtmlFileName>
<LongName> 30503 - Disclosure - Allowance for Doubtful Accounts (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureAllowanceForDoubtfulAccountsTables </Role>
<ShortName> Allowance for Doubtful Accounts (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureAllowanceForDoubtfulAccounts </ParentRole>
<Position> 22 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R23.htm </HtmlFileName>
<LongName> 30603 - Disclosure - Related Party Transactions (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureRelatedPartyTransactionsTables </Role>
<ShortName> Related Party Transactions (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureRelatedPartyTransactions </ParentRole>
<Position> 23 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R24.htm </HtmlFileName>
<LongName> 30703 - Disclosure - Non-Recourse Debt (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureNonRecourseDebtTables </Role>
<ShortName> Non-Recourse Debt (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureNonRecourseDebt </ParentRole>
<Position> 24 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R25.htm </HtmlFileName>
<LongName> 31003 - Disclosure - Members' Capital (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureMembersCapitalTables </Role>
<ShortName> Members' Capital (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureMembersCapital </ParentRole>
<Position> 25 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R26.htm </HtmlFileName>
<LongName> 31103 - Disclosure - Fair Value Measurements (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureFairValueMeasurementsTables </Role>
<ShortName> Fair Value Measurements (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureFairValueMeasurements </ParentRole>
<Position> 26 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R27.htm </HtmlFileName>
<LongName> 40101 - Disclosure - Organization and Limited Liability Company Matters (Narrative) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureOrganizationAndLimitedLiabilityCompanyMattersNarrativeDetails </Role>
<ShortName> Organization and Limited Liability Company Matters (Narrative) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureOrganizationAndLimitedLiabilityCompanyMatters </ParentRole>
<Position> 27 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R28.htm </HtmlFileName>
<LongName> 40201 - Disclosure - Summary of Significant Accounting Policies (Narrative) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureSummaryOfSignificantAccountingPoliciesNarrativeDetails </Role>
<ShortName> Summary of Significant Accounting Policies (Narrative) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTables </ParentRole>
<Position> 28 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R29.htm </HtmlFileName>
<LongName> 40203 - Disclosure - Summary of Significant Accounting Policies (Schedule of Differences Between Book Value and Tax Basis of Net Assets) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureSummaryOfSignificantAccountingPoliciesScheduleOfDifferencesBetweenBookValueAndTaxBasisOfNetAssetsDetails </Role>
<ShortName> Summary of Significant Accounting Policies (Schedule of Differences Between Book Value and Tax Basis of Net Assets) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTables </ParentRole>
<Position> 29 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R30.htm </HtmlFileName>
<LongName> 40204 - Disclosure - Summary of Significant Accounting Policies (Reconciliation of Net Income (Loss) Reported in Financial Statements and Federal Tax Return) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureSummaryOfSignificantAccountingPoliciesReconciliationOfNetIncomeLossReportedInFinancialStatementsAndFederalTaxReturnDetails </Role>
<ShortName> Summary of Significant Accounting Policies (Reconciliation of Net Income (Loss) Reported in Financial Statements and Federal Tax Return) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTables </ParentRole>
<Position> 30 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R31.htm </HtmlFileName>
<LongName> 40301 - Disclosure - Concentration of Credit Risk and Major Customers (Schedule of Leasing and Lending Revenues) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureConcentrationOfCreditRiskAndMajorCustomersScheduleOfLeasingAndLendingRevenuesDetails </Role>
<ShortName> Concentration of Credit Risk and Major Customers (Schedule of Leasing and Lending Revenues) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureConcentrationOfCreditRiskAndMajorCustomersTables </ParentRole>
<Position> 31 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R32.htm </HtmlFileName>
<LongName> 40401 - Disclosure - Investment in equipment and leases, net (Narrative) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureInvestmentInEquipmentAndLeasesNetNarrativeDetails </Role>
<ShortName> Investment in equipment and leases, net (Narrative) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureInvestmentInEquipmentAndLeasesNetTables </ParentRole>
<Position> 32 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R33.htm </HtmlFileName>
<LongName> 40402 - Disclosure - Investment in equipment and leases, net (Investment in Leases) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureInvestmentInEquipmentAndLeasesNetInvestmentInLeasesDetails </Role>
<ShortName> Investment in equipment and leases, net (Investment in Leases) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureInvestmentInEquipmentAndLeasesNetTables </ParentRole>
<Position> 33 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R34.htm </HtmlFileName>
<LongName> 40403 - Disclosure - Investment in equipment and leases, net (Property on Operating Leases) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureInvestmentInEquipmentAndLeasesNetPropertyOnOperatingLeasesDetails </Role>
<ShortName> Investment in equipment and leases, net (Property on Operating Leases) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureInvestmentInEquipmentAndLeasesNetTables </ParentRole>
<Position> 34 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R35.htm </HtmlFileName>
<LongName> 40405 - Disclosure - Investment in equipment and leases, net (Schedule of Useful Lives of Lease Assets) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureInvestmentInEquipmentAndLeasesNetScheduleOfUsefulLivesOfLeaseAssetsDetails </Role>
<ShortName> Investment in equipment and leases, net (Schedule of Useful Lives of Lease Assets) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureInvestmentInEquipmentAndLeasesNetTables </ParentRole>
<Position> 35 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R36.htm </HtmlFileName>
<LongName> 40501 - Disclosure - Allowance for Doubtful Accounts (Activity in Allowance for Doubtful Accounts) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureAllowanceForDoubtfulAccountsActivityInAllowanceForDoubtfulAccountsDetails </Role>
<ShortName> Allowance for Doubtful Accounts (Activity in Allowance for Doubtful Accounts) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureAllowanceForDoubtfulAccountsTables </ParentRole>
<Position> 36 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R37.htm </HtmlFileName>
<LongName> 40601 - Disclosure - Related Party Transactions (Managing Member and Affiliates Earned Commissions and Billed for Reimbursements Pursuant to Operating Agreement) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureRelatedPartyTransactionsManagingMemberAndAffiliatesEarnedCommissionsAndBilledForReimbursementsPursuantToOperatingAgreementDetails </Role>
<ShortName> Related Party Transactions (Managing Member and Affiliates Earned Commissions and Billed for Reimbursements Pursuant to Operating Agreement) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureRelatedPartyTransactionsTables </ParentRole>
<Position> 37 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R38.htm </HtmlFileName>
<LongName> 40701 - Disclosure - Non-Recourse Debt (Narrative) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureNonRecourseDebtNarrativeDetails </Role>
<ShortName> Non-Recourse Debt (Narrative) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureNonRecourseDebtTables </ParentRole>
<Position> 38 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R39.htm </HtmlFileName>
<LongName> 40702 - Disclosure - Non-Recourse Debt (Future Minimum Payments of Non-Recourse Debt) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureNonRecourseDebtFutureMinimumPaymentsOfNonRecourseDebtDetails </Role>
<ShortName> Non-Recourse Debt (Future Minimum Payments of Non-Recourse Debt) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureNonRecourseDebtTables </ParentRole>
<Position> 39 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R40.htm </HtmlFileName>
<LongName> 40801 - Disclosure - Commitments (Narrative) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureCommitmentsNarrativeDetails </Role>
<ShortName> Commitments (Narrative) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureCommitments </ParentRole>
<Position> 40 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R41.htm </HtmlFileName>
<LongName> 41001 - Disclosure - Members' Capital (Narrative) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureMembersCapitalNarrativeDetails </Role>
<ShortName> Members' Capital (Narrative) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureMembersCapitalTables </ParentRole>
<Position> 41 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R42.htm </HtmlFileName>
<LongName> 41002 - Disclosure - Members' Capital (Distributions to Other Members) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureMembersCapitalDistributionsToOtherMembersDetails </Role>
<ShortName> Members' Capital (Distributions to Other Members) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureMembersCapitalTables </ParentRole>
<Position> 42 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R43.htm </HtmlFileName>
<LongName> 41101 - Disclosure - Fair Value Measurements (Narrative) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureFairValueMeasurementsNarrativeDetails </Role>
<ShortName> Fair Value Measurements (Narrative) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureFairValueMeasurementsTables </ParentRole>
<Position> 43 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R44.htm </HtmlFileName>
<LongName> 41102 - Disclosure - Fair Value Measurements (Fair Value Measurement of Impaired Assets at Fair Value on Non-Recurring Basis) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureFairValueMeasurementsFairValueMeasurementOfImpairedAssetsAtFairValueOnNonRecurringBasisDetails </Role>
<ShortName> Fair Value Measurements (Fair Value Measurement of Impaired Assets at Fair Value on Non-Recurring Basis) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureFairValueMeasurementsTables </ParentRole>
<Position> 44 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R45.htm </HtmlFileName>
<LongName> 41103 - Disclosure - Fair Value Measurements (Summary of Valuation Techniques and Significant Unobservable Inputs Used) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureFairValueMeasurementsSummaryOfValuationTechniquesAndSignificantUnobservableInputsUsedDetails </Role>
<ShortName> Fair Value Measurements (Summary of Valuation Techniques and Significant Unobservable Inputs Used) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureFairValueMeasurementsTables </ParentRole>
<Position> 45 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R46.htm </HtmlFileName>
<LongName> 41104 - Disclosure - Fair Value Measurements (Estimated Fair Values of Financial Instruments) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.atel.com/role/DisclosureFairValueMeasurementsEstimatedFairValuesOfFinancialInstrumentsDetails </Role>
<ShortName> Fair Value Measurements (Estimated Fair Values of Financial Instruments) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.atel.com/role/DisclosureFairValueMeasurementsTables </ParentRole>
<Position> 46 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R47.htm </HtmlFileName>
<LongName> 995410 - Disclosure - Pay vs Performance Disclosure </LongName>
<ReportType> Sheet </ReportType>
<Role> http://xbrl.sec.gov/ecd/role/PvpDisclosure </Role>
<ShortName> Pay vs Performance Disclosure </ShortName>
<MenuCategory> Uncategorized </MenuCategory>
<Position> 47 </Position>
</Report>
<Report instance="tmb-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R48.htm </HtmlFileName>
<LongName> 995445 - Disclosure - Insider Trading Arrangements </LongName>
<ReportType> Sheet </ReportType>
<Role> http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements </Role>
<ShortName> Insider Trading Arrangements </ShortName>
<MenuCategory> Cover </MenuCategory>
<Position> 48 </Position>
</Report>
<Report>
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<LongName> All Reports </LongName>
<ReportType> Book </ReportType>
<ShortName> All Reports </ShortName>
</Report>
</MyReports>
<Logs>
<Log type="Warning"> [dq-0542-Deprecated-Concept] Concept ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy in us-gaap/2023 used in 1 facts was deprecated in us-gaap/2024 as of 2024 and should not be used. tmb-20231231x10k.htm 29 </Log>
<Log type="Warning"> [ix-0514-Hidden-Fact-Eligible-For-Transform] WARN: 4 fact(s) appearing in ix:hidden were eligible for transformation: atel:ReinvestmentPeriod, dei:CurrentFiscalYearEndDate, dei:SecurityExchangeName, us-gaap:PropertyPlantAndEquipmentUsefulLife - tmb-20231231x10k.htm 9 </Log>
<Log type="Warning"> [ix-0514-Hidden-Fact-Not-Referenced] WARN: 4 fact(s) appearing in ix:hidden were not referenced by any -sec-ix-hidden style property: atel:AdministrativeFeeExpenseRelatedPartyTypeExtensibleEnumeration, atel:ManagementFeeExpenseRelatedPartyTypeExtensibleEnumeration, us-gaap:CommitmentsAndContingencies - tmb-20231231x10k.htm 9 </Log>
<Log type="Warning"> [dq-0712-Presentation-Base-Set-Order] Role '41104 - Disclosure - Fair Value Measurements (Estimated Fair Values of Financial Instruments) (Details)', a level 4, Detail role, appears before '995410 - Disclosure - Pay vs Performance Disclosure', a level 1, Note role. https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd 30, tmb-20231231.xsd 291 </Log>
</Logs>
<InputFiles>
<File> tmb-20231231.xsd </File>
<File> tmb-20231231_cal.xml </File>
<File> tmb-20231231_def.xml </File>
<File> tmb-20231231_lab.xml </File>
<File> tmb-20231231_pre.xml </File>
<File doctype="10-K" isDefinitelyFs="true" isUsgaap="true" original="tmb-20231231x10k.htm"> tmb-20231231x10k.htm </File>
</InputFiles>
<SupplementalFiles/>
<BaseTaxonomies>
<BaseTaxonomy items="264"> http://fasb.org/us-gaap/2023 </BaseTaxonomy>
<BaseTaxonomy items="36"> http://xbrl.sec.gov/dei/2023 </BaseTaxonomy>
<BaseTaxonomy items="4"> http://xbrl.sec.gov/ecd/2023 </BaseTaxonomy>
</BaseTaxonomies>
<HasPresentationLinkbase> true </HasPresentationLinkbase>
<HasCalculationLinkbase> true </HasCalculationLinkbase>
</FilingSummary>

1 Previous Filing that this Filing References

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

10/08/09  Atel 14, LLC                      424B3                  1:2.8M                                   Donnelley … Solutions/FA
↑Top
Filing Submission 0001558370-24-003647   –   Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)
Copyright © 2024 Fran Finnegan & Company LLC – All Rights Reserved.
About — Privacy — Redactions — Help — Wed., May 15, 2:56:19.1pm ET