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Change in fair value Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset And Liability Change In Fair Value Fair value measurement with unobservable inputs reconciliation recurring basis asset and liability change in fair value. Liabilities, Convertible Preferred Stock and Stockholders' Deficit: Liabilities and Member's Equity: Liabilities and Equity [Abstract] State State and Local Jurisdiction [Member] Cover page. Cover [Abstract] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Maximum Maximum [Member] Weighted-Average Exercise Price, Options vested and exercisable (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Pennsylvania PENNSYLVANIA Software and Website Development Internal Use Software, Policy [Policy Text Block] Change In Assumptions Change In Assumptions [Axis] Information by change in assumptions used in estimating fair value. 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Entities [Table] Entities [Table] Notes Issued by Securitization Trusts Notes Issued by Securitization Trust Notes issued by securitization trust Loan, Held-for-Sale or Securitization or Asset-Backed Financing Arrangement, Principal Outstanding Interest rate Loans Held-For-Sale Or Securitization Or Asset-Backed Financing Arrangement, Stated Rate Loans Held-For-Sale Or Securitization Or Asset-Backed Financing Arrangement, Stated Rate Series E-1 Convertible Preferred Stock warrants Series E1 Convertible Preferred Stock Warrants Member Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Schedule of Derivative Assets Measured at Fair Value Schedule of Derivative Assets Measured at Fair Value [Table Text Block] Schedule of Derivative Assets Measured at Fair Value Principal payments on 2022 Term Loan (Note 11) Repayments of Long-Term Debt Section 174 R&D capitalization Deferred Tax Asset, In-Process Research and Development Entity Interactive Data Current Entity Interactive Data Current Percentage of fund from whole loan channel Percentage Of Fund From Whole Loan Channel Percentage of fund from whole loan channel. Share-based payment awards Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Amount Less: Segment Operating Expenses Segment Reconciliation [Abstract] Quarterly principal payments Debt Instrument, Periodic Payment, Principal Net operating loss carry forwards Deferred Tax Assets, Operating Loss Carryforwards Servicing Assets and Obligation Transfers and Servicing of Financial Assets, Policy [Policy Text Block] Administration agreement license, fixed monthly fee Administration Agreement License, Fixed Monthly Fee Administration Agreement License, Fixed Monthly Fee Property Plant And Equipment By Type Long-Lived Tangible Asset [Axis] Liquidation preference per share (in dollars per share) Temporary Equity, Liquidation Preference Per Share Accelerated amortization of PWIT and PWIIT debt issuance costs Accelerated Amortization of Debt Issuance Costs Accelerated Amortization of Debt Issuance Costs Goodwill Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Proceeds from Sales and Principal Payments of Borrower Loans Held at Fair Value Proceeds from Sales and Principal Payments of Borrower Loans, at Fair Value Proceeds from Sale and Principal Payment Of Borrower Loans Held At Fair Value Principal payment of borrower loans held at fair value. Credit Card servicing obligation liability (Notes 5 and 8) Servicing Liability Series D Series D Preferred Stock [Member] Loans Held for Sale Loans Held For Sale [Member] Represents loans granted by the entity which are held for sale. 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Market rate for collection fee Fair Value Assumptions, Collection Fee Market Rate Fair Value Assumptions, Collection Fee Market Rate Net operating loss carryforwards Operating Loss Carryforwards Changes in unrecognized tax benefits Effective Income Tax Rate Reconciliation, Tax Contingency, Amount Depreciation expense: Depreciation [Abstract] Compensation and Benefits Labor and Related Expense Outstanding principal Continuing Involvement with Transferred Financial Assets, Principal Amount Outstanding Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Unrecognized cost of unvested share-based compensation awards. Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Aggregate Amount of Notes Purchased Aggregate Amount Of Notes And Borrower Loans Purchased By Related Parties Related Party Transaction [Line Items] Related Party Transaction [Line Items] Reclassification to Convertible Preferred Stock upon exercise of Series F Warrants (Note 13) Temporary Equity, Stock Issued During Period Value Conversion Of Convertible Securities, Warrant Temporary Equity, Stock Issued During Period Value Conversion Of Convertible Securities, Warrant PWIT Warehouse Line PWIT Warehouse Line [Member] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] 2026 Lessee, Operating Lease, Liability, to be Paid, Year Two Stock split conversion ratio Stockholders' Equity Note, Stock Split, Conversion Ratio Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Weighted-Average Contractual Term (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Other Income, Net Other Income and Other Expense, Policy [Policy Text Block] Other Income and Other Expense, Policy [Policy Text Block] Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Prosper Allocations Prosper Allocations [Member] Prosper Allocations Payable to Investors Payable to Investors Increase Decrease In Payable To Investors Increase decrease in payable to investors. 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Compensation Amount Outstanding Recovery Compensation Amount Debt Instrument Name Debt Instrument, Name [Domain] Dividend yield Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Restricted Cash - Certificates of Deposit Certificates of Deposit [Member] Temporary Equity Component [Axis] Temporary Equity Component [Axis] Temporary Equity Component Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Fair Value Estimate of Fair Value Measurement [Member] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Revenues: Revenues: Revenues [Abstract] Transaction Fee Refunds Transaction Fee Refunds [Policy Text Block] Transaction Fee Refunds Applying a 0.9 multiplier to prepayment rate Applying a 0.9 multiplier to prepayment rate Zero Point Nine Multiplier To Prepayment Rate [Member] Zero Point Nine Multiplier To Prepayment Rate Related Party Two Related Party Two [Member] Related Party Two Sales and Marketing Selling and Marketing Expense Assumptions Assumptions [Axis] Information by different assumptions used in estimating fair value. Financial Instruments [Domain] Financial Instruments [Domain] Total deferred tax liabilities Deferred Tax Liabilities, Gross Purchase of Borrower Loans/Issuance of Notes Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Other Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount Convertible preferred stock, price per share (in dollars per share) Convertible Preferred Stock Price Per Share Convertible preferred stock price per share. 2024-1, Class D Notes Securtization Trust PMIT 2024-1, Class D Notes [Member] Securtization Trust PMIT 2024-1, Class D Notes Minimum Minimum [Member] 2024-1, Class B Notes Securtization Trust PMCC 2024-1, Class B Notes [Member] Securtization Trust PMCC 2024-1, Class B Notes Income Tax Authority Name Income Tax Authority, Name [Domain] Debt instrument, upsize option Debt Instrument, Credit Facility Upsize Option Amount Debt Instrument, Credit Facility Upsize Option Amount Contribution of Borrower Loans from Parent Non-Cash Financing Activity - Contribution of Borrower Loans by Parent (Note 4) Contribution of Borrower Loans from Parent Contribution of Borrower Loans from Parent Schedule of Fair Value Assumptions Key Economic Assumptions And Sensitivity Of Current Fair Value To Immediate Adverse Changes In Those Assumptions [Table Text Block] Tabular disclosure of key economic assumptions and sensitivity of current fair value to immediate adverse changes in those assumptions for Borrower Loans and Notes. Company Selected Measure Name Company Selected Measure Name Series F Warrant Series F Warrant [Member] Series F Warrant [Member] Options outstanding, Aggregate intrinsic value Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Outstanding, Aggregate Intrinsic Value Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Outstanding, Aggregate Intrinsic Value Fair Value Measurement [Domain] Fair Value Measurement [Domain] DEBT Debt Disclosure [Text Block] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Cash paid for operating leases included in the measurement of lease liabilities Operating Lease, Payments Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Dividends Dividends Payable Default rate increase Default Rate Increase Default rate increase. 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Assumptions Assumptions [Domain] Represents different classes of fair value assumptions. Servicing Fees, Net Bank Servicing [Member] Equity Component Equity Component [Domain] Document Period End Date Document Period End Date Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] INCOME TAXES Income Tax Disclosure [Text Block] Proceeds from Warehouse Lines Proceeds from Lines of Credit Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Weighted Average Contractual Term, Options vested and exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Risks and Uncertainties [Abstract] Document Type Document Type Level 3 Inputs Fair Value, Inputs, Level 3 [Member] NET INCOME (LOSS) PER SHARE Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Marketing and Advertising Marketing and Advertising Expense Office equipment Office Equipment [Member] Product and Service [Axis] Product and Service [Axis] Payable to Related Party Notes, Aggregate principal balance outstanding Notes Payable Revenues Revenue from Contract with Customer, Excluding Assessed Tax Options Issued and Outstanding, Options vested and expected to vest (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Range [Axis] Statistical Measurement [Axis] 2023-1, Class A Notes Securtization Trust PMIT 2023-1, Class A Notes [Member] Securtization Trust PMIT 2023-1, Class A Notes Weighted-Average Contractual Term (in years) Weighted Average Remaining Contractual Term Roll Forward Weighted average remaining contractual term. Transaction fee cap percentage Transaction Fee Cap Percentage Transaction Fee Cap Percentage Fair Value Inputs Assets Quantitative Information [Line Items] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Entity Information [Line Items] Entity Information [Line Items] Research and other credits Deferred Tax Assets, Tax Credit Carryforwards, Research Total Expenses Operating Expenses Level 1 Inputs Fair Value, Inputs, Level 1 [Member] Schedule Of Related Party Transactions By Related Party [Table] Related Party Transaction [Table] Net Loss Per Share – Diluted (in dollars per share) Earnings Per Share, Diluted Derivative liability, expected fair value with change in assumptions Derivative Liability, Expected Fair Value With Change In Assumptions Derivative Liability, Expected Fair Value With Change In Assumptions Revised allocation of customer accounts Derivative, Net Assets, Percentage Fair value, liability, recurring basis, unobservable input reconciliation, gain (loss), statement of income or comprehensive income [Extensible Enumeration] Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Schedule of Assumptions Used Defined Benefit Plan, Assumptions [Table Text Block] Debt modification costs Payments of Debt Restructuring Costs Beginning balance (in shares) Ending balance (in shares) Treasury Stock, Common, Shares State Income Tax Paid, State and Local, after Refund Received Interest Expense on Term Loans Interest Expense, Other Long-Term Debt Servicing Assets And Liabilities Fair Value [Line Items] Risks Inherent in Servicing Assets and Servicing Liabilities [Line Items] Property and Equipment, Net Total Property and Equipment, Net Property, Plant, And Equipment And Operating Lease Right-Of-Use Asset, After Accumulated Depreciation And Amortization Property, Plant, And Equipment And Operating Lease Right-Of-Use Asset, After Accumulated Depreciation And Amortization Auditor Location Auditor Location Additions Servicing Asset at Fair Value, Additions Federal Domestic Tax Jurisdiction [Member] Change in Fair Value of Convertible Preferred Stock Warrants Change in Fair Value of Convertible Preferred Stock Warrants Change In Fair Value Of Convertible Preferred Stock Warrants Change In Fair Value Of Convertible Preferred Stock Warrants Number of classes issued Loans Held-For-Sale Or Securitization Or Asset-Backed Financing Arrangement Number of Classes Issued Loans Held-For-Sale Or Securitization Or Asset-Backed Financing Arrangement Number of Classes Issued Property and equipment Property, Plant, And Equipment And Operating Lease Right-Of-Use Assets Property, Plant, And Equipment And Operating Lease Right-Of-Use Assets Less: Imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Tax Credit Carryforward Tax Credit Carryforward [Axis] Percentage of loans purchased Percentage Of Loan Purchased Percentage of loan Purchased. Total Income Taxes Paid, Net of Refunds Received Income Taxes Paid, Net California California Franchise Tax Board [Member] Other Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Percent Restricted Cash and Cash Equivalents [Axis] Restricted Cash and Cash Equivalents [Axis] Convertible preferred stock, issued (in shares) Temporary Equity, Shares Issued Schedule Of Collaborative Arrangements And Noncollaborative Arrangement Transactions [Table] Collaborative Arrangement and Arrangement Other than Collaborative [Table] Convertible Preferred Stock Warrant Liability Stockholders' Equity Note, Redeemable Preferred Stock, Issue, Policy [Policy Text Block] Fee deposits, percentage Fee Deposits, Excess Of Transaction Fee Collected, Percentage Fee Deposits, Excess Of Transaction Fee Collected, Percentage Exercise of vested stock options Stock Issued During Period Value Vested Stock Options Exercised Stock issued during period value vested stock options exercised. Weighted-Average Exercise Price, Options granted (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Office equipment and furniture Office Equipment And Furniture [Member] Tangible personal property used in an office setting. Examples include, but are not limited to, computers, copiers and fax machine and also includes equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases. PROPERTY AND EQUIPMENT, NET Property, Plant and Equipment Disclosure [Text Block] Payments of Notes Held at Fair Value Payments of Notes, at Fair Value Payment Of Notes Held At Fair Value The cash disbursed to Borrower Payment Dependent Notes holders during the period. Total future minimum lease payments Lessee, Operating Lease, Liability, to be Paid Valuation techniques Derivative Asset, Measurement Input Common and preferred stock, shares authorized (in shares) Common And Preferred Stock Shares Authorized Common and preferred stock shares authorized. Expiration Date Trading Arrangement Expiration Date Other Commitments [Domain] Other Commitments [Domain] Default rate assumption Fair Value Assumptions Default Rate [Member] Default rate used as an input to fair value measurement. Other Liabilities Other Liabilities Increase (Decrease) in Other Operating Liabilities Loan Trailing Fee Liability Loan Trailing Fee, Policy [Policy Text Block] Loan Trailing Fee, Policy [Policy Text Block] Property and Equipment, Net Total Property and Equipment, Net Property, Plant and Equipment, Net Numerator: Net Income (Loss) Attributable to Parent [Abstract] Schedule of Right-of-use Assets Lessee, Operating Lease, Schedule Of Right-Of-Use Assets [Table Text Block] Lessee, Operating Lease, Schedule Of Right-Of-Use Assets Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Total Interest Income, Net Included in Segment Adjusted EBITDA Segment Adjusted EBITDA Interest Income (Expense), Net Segment Adjusted EBITDA Interest Income (Expense), Net Entity Current Reporting Status Entity Current Reporting Status Derivative [Line Items] Derivative [Line Items] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Consolidated Entities [Domain] Consolidated Entities [Domain] U.S. federal statutory tax rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Financial Instrument [Axis] Financial Instrument [Axis] Statement of Financial Position [Abstract] Executive Category: Executive Category [Axis] Share-based payment awards Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Percent Repayments of outstanding principal and interest Repayments of Debt State and local income taxes, net of federal income tax effect Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent Other Income, Net Other Operating Income (Expense), Net Other changes Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset And Liability Other Changes Fair value measurement with unobservable inputs reconciliation recurring basis asset and liability other changes. Current Fiscal Year End Date Current Fiscal Year End Date Expected life Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Beginning balance, total Ending balance, total Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset And Liability Value Convertible Preferred Stock issued and outstanding Convertible Preferred Stock [Member] Weighted-Average Grant Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Share-based payment award, number of shares available for grant (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant Derivative liability Derivative Liability Weighted-average grant date fair value of options granted (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Servicing Assets And Liabilities Fair Value [Line Items] Servicing Liabilities at Fair Value [Line Items] State tax rate changes Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Beginning balance Ending balance Unrecognized Tax Benefits Total excluded securities (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Denominator: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Proceeds net issuance cost Proceeds from Issuance of Preferred Stock and Preference Stock Liabilities Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value By Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Borrower Loans contributed by Parent, at Fair Value Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset and Liability, Contributions Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset and Liability, Contributions Right-of-use assets Deferred Tax Liabilities, Operating Lease, Right-Of-Use Asset Deferred Tax Liabilities, Operating Lease, Right-Of-Use Asset LEASES Lessee, Operating Leases [Text Block] Net Cash (Used in) Provided by Financing Activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Measure: Measure [Axis] Executive officers and management Executive Officers And Management [Member] Executive officers and management. Impact of interest rates on fair value of loans held in consolidated trusts Impact Of Fluctuations In Market Interest Rates, Revenues Impact Of Fluctuations In Market Interest Rates, Revenues Managing Of Risks Inherent In Servicing Assets And Servicing Liabilities [Table] Servicing Asset and Servicing Liability, Risk Mitigation [Table] Prepayment rate assumption Fair Value Assumptions Prepayment Rate [Member] Fair value assumptions prepayment rate. Repurchase of preferred stock Payments for Repurchase of Redeemable Convertible Preferred Stock 2024-1, Class A Notes Securtization Trust PMIT 2024-1, Class A Notes [Member] Securtization Trust PMIT 2024-1, Class A Notes Property Plant And Equipment Type Long-Lived Tangible Asset [Domain] Servicing and Other, Net Cost of Product and Service Sold Non-cash operating activity: Non Cash Operating Activity [Abstract] Non Cash Operating Activity Servicing Assets And Liabilities Fair Value [Line Items] Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items] Servicing Assets And Liabilities Fair Value [Table] Servicing Liability at Fair Value, Activity [Table] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Risk-free interest rate Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Schedule of Quantitative Information About Significant Unobservable Inputs Fair Value Inputs Assets Liabilities Quantitative Information [Table Text Block] Fair​ value​ inputs assets​ liabilities quantitative​ information. Entity Tax Identification Number Entity Tax Identification Number Net Related Party Receivable/Payable Increase Decrease In Receivables From And Payables To Related Party The net change during the reporting period in receivables from or payables to a related party. Other changes Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Other Changes Fair value measurement with unobservable inputs reconciliation recurring basis asset other changes. Derivative Derivative [Member] Discount rate on Coastal Program Fee Measurement Input, Discount Rate on Program Fee [Member] Measurement Input, Discount Rate on Program Fee Weighted-Average Exercise Price, Beginning balance (in dollars per share) Weighted-Average Exercise Price, Ending balance (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Percentage of holders of preferred stock required to request for conversion, minimum (at least) Percentage Of Holders Of Preferred Stock Required To Request For Conversion Minimum Represents minimum percentage of holders of preferred stock required to request in written for conversion. Common stock, issued (in shares) Common Stock, Shares, Issued Administration Fee Revenue – Related Party Administration Fees [Member] Administration Fees [Member] Weighted average remaining lease term (in years) Operating Lease, Weighted Average Remaining Lease Term Current: Current Federal, State and Local, Tax Expense (Benefit) [Abstract] Entity Public Float Entity Public Float Trading Arrangement: Trading Arrangement [Axis] Total Shareholder Return Amount Total Shareholder Return Amount Principal Payments on Notes Issued by Securitization Trust Payments On Securitization Notes Payments On Securitization Notes Fair value assumptions Debt Instrument, Measurement Input Series E Series E Preferred Stock [Member] Change in fair value Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Transaction Fees, Net Transaction Fees [Member] Transaction Fees [Member] Designated Amount for loans (less than), through February 2027 Operating Commitments, Loan Designated Amount, Threshold, Term Two Borrower Loans contributed by Parent, at Fair Value Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Contributions Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Contributions Convertible Preferred Stock Temporary Equity, Convertible Preferred Stock [Member] Temporary Equity, Convertible Preferred Stock Non-Cash Investing Activity - Accrual for Property and Equipment, Net Non-Cash Investing Activity - Accrual for Property and Equipment, Net Capital Expenditures Incurred but Not yet Paid Line of credit Line of Credit Facility, Maximum Borrowing Capacity Unamortized original issue discount and debt issuance and modification costs Debt Instrument, Unamortized Original Issue Discount and Debt Issuance and Modification Costs Debt Instrument, Unamortized Original Issue Discount and Debt Issuance and Modification Costs Stock issued during the period (in shares) Stock Repurchased During Period, Shares Expenses: Expenses: Operating Expenses [Abstract] Asset Class [Domain] Asset Class [Domain] Change in fair value Change in fair value Change in fair value Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Increase (Decrease) in Temporary Equity [Roll Forward] Increase (Decrease) in Temporary Equity [Roll Forward] Valuation techniques Servicing Assets And Servicing Liabilities At Fair Value, Valuation Techniques Servicing Assets And Servicing Liabilities At Fair Value, Valuation Techniques Statement [Line Items] Statement [Line Items] Term Loans Term Loans [Policy Text Block] Term Loans 2023-1, Class D Notes Securtization Trust PMIT 2023-1, Class D Notes [Member] Securtization Trust PMIT 2023-1, Class D Notes Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Credit Card Derivative Credit Card Derivative [Abstract] Credit Card Derivative Cash and Cash Equivalents Cash and Cash Equivalent Fair Value Inputs Assets Quantitative Information [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] Research and Development Research Tax Credit Carryforward [Member] Common Stock Common Stock [Member] Issuances Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances Mandatorily Redeemable Preferred Stock Mandatorily Redeemable Preferred Stock [Member] Net Decrease in Cash, Cash Equivalents and Restricted Cash Net Decrease in Cash, Cash Equivalents and Restricted Cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Principal payments not due period Loans Held-For-Sale Or Securitization Or Asset-Backed Financing Arrangement, Principal Payments Not Due Period Loans Held-For-Sale Or Securitization Or Asset-Backed Financing Arrangement, Principal Payments Not Due Period Change In Assumptions Change In Assumptions [Domain] Represents different levels of changes in fair value assumptions. Prepayment rate Measurement Input, Prepayment Rate [Member] 2023-1, Class E Notes Securtization Trust PMIT 2023-1, Class E Notes [Member] Securtization Trust PMIT 2023-1, Class E Notes SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] Range [Domain] Statistical Measurement [Domain] 100 basis point increase in both discount rates 100 Basis Point Increase [Member] 100 Basis Point Increase Least dilutional balance, percent Loan, Held-for-Sale or Securitization or Asset-Backed Financing Arrangement, Least Dilutional Balance, Percent Loan, Held-for-Sale or Securitization or Asset-Backed Financing Arrangement, Least Dilutional Balance, Percent Servicing outstanding percentage (as a percent) Servicing Outstanding Percentage Servicing Outstanding Percentage Asset Class [Axis] Asset Class [Axis] Leases [Abstract] 2025 Plan 2025 Plan [Member] 2025 Plan Interest Earned on Notes and Borrower Loans Interest Income, Interest-Earning Asset Proceeds from Exercise of Stock Options Proceeds From Exercise Of Warrants And Stock Options Including Early Exercise And Issuance Of Restricted Stock Proceeds from exercise of warrants and stock options including early exercise, and issuance of restricted stock. Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Net Loss Per Share – Basic (in dollars per share) Earnings Per Share, Basic Accounts Payable and Accrued Liabilities Accounts Payable and Accrued Liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities General and Administrative - Other General And Administrative, Depreciation Expense General And Administrative, Depreciation Expense Liabilities: Liabilities, Fair Value Disclosure [Abstract] Common stock, capital shares reserved for future issuance (in shares) Common Stock, Capital Shares Reserved for Future Issuance Other changes Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Other Changes Fair value measurement with unobservable inputs reconciliation recurring basis liability other changes. Warrant expiration period Class of Warrant or Right, Expiration Period Class of Warrant or Right, Expiration Period Changes in unrecognized tax benefits Effective Income Tax Rate Reconciliation, Tax Contingency, Percent Total deferred tax assets Deferred Tax Assets, Gross Discount rate Measurement Input, Discount Rate [Member] Prepayment rate Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Prepayment Speed Schedule of Segment Reporting Information, by Segment Schedule of Segment Reporting Information, by Segment [Table Text Block] Deferred: Deferred Federal, State and Local, Tax Expense (Benefit) [Abstract] Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Contributions Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Contributions Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Contributions Measurement Input Type [Domain] Measurement Input Type [Domain] Accrued repurchase and indemnification obligation Repurchase Obligation Accrued Repurchase obligation accrued. Proceeds from Issuance of Notes Held at Fair Value Proceeds from Issuance of Notes, at Fair Value Proceeds From Issuance Of Notes Held At Fair Value The aggregate amount of proceeds from the issuance of Borrower Payment Dependent Notes during the period. Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] VIE, Primary Beneficiary Variable Interest Entity, Primary Beneficiary [Member] Interest Income (Expense): Interest Income (Expense) Included in Segment Adjusted EBITDA Interest Income (Expense), Operating [Abstract] Servicing rate increase Servicing Rate Increase Servicing rate increase. Total Stock-Based Compensation Stock-based compensation Share-Based Payment Arrangement, Expense Goodwill and Intangible Assets Disclosure [Abstract] Notes, at Fair Value Notes, Fair value Notes, at Fair Value Notes Payable, Fair Value Disclosure Term Loan Secured Debt Options Issued and Outstanding, Options forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period Total Liabilities, Convertible Preferred Stock and Stockholders' Deficit Liabilities and Equity Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Loan trailing fee liability Obligations [Member] Options Issued and Outstanding Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] Impact of interest rates on fair value of loans held in consolidated trusts Impact Of Fluctuations In Market Interest Rates Impact Of Fluctuations In Market Interest Rates Market servicing rate Measurement Input, Market Servicing Rate [Member] Measurement Input, Market Servicing Rate General and Administrative General and Administrative Expense [Member] Accounting Policies [Abstract] Schedule of Maturity of Lease Liabilities Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Treasury Stock Treasury Stock, Common [Member] Pay vs Performance Disclosure [Line Items] Class of Warrant or Right [Axis] Class of Warrant or Right [Axis] Operating lease liabilities (Note 16) Present value of future minimum lease payments Operating Lease, Liability Purchases of Borrower Loans Held at Fair Value Purchase of Borrower Loans, at Fair Value Purchase Of Borrower Loans Held At Fair Value Purchase of borrower loans held at fair value. 2024-1, Class C Notes Securtization Trust PMCC 2024-1, Class C Notes [Member] Securtization Trust PMCC 2024-1, Class C Notes Financing Receivables, Equal to Greater than 90 Days Past Due Financial Asset, Equal to or Greater than 90 Days Past Due [Member] Liquidation preference per share (in dollars per share) Preferred Stock, Liquidation Preference Per Share Total Liabilities Financial Liabilities Fair Value Disclosure Depreciation and Amortization Depreciation and Amortization Depreciation, Depletion and Amortization, Nonproduction Assets Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Related Party One Related Party One [Member] Related Party One Goodwill impairment expense Goodwill, Impairment Loss Principal repayments on Borrower Loans Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset And Liability Principal Repayments And Credit Losses Principal repayments and credit losses that have taken place during the period in relation to assets and liabilities measured at fair value and categorized within Level 3 of the fair value hierarchy. Variable Interest Entity [Table] Variable Interest Entity [Table] Restricted Cash - Cash and Cash Equivalents Other Cash and Cash Equivalents [Member] Other Cash and Cash Equivalents Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Company Selected Measure Amount Company Selected Measure Amount 2027 Lessee, Operating Lease, Liability, to be Paid, Year Three Debt issuance costs Debt Issuance Costs, Gross Weighted-Average Exercise Price, Option expirations (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price Measurement Input Type [Axis] Measurement Input Type [Axis] Name Measure Name Schedule of Domestic and Foreign Components of Net Income (Loss) Before Income Taxes Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Schedule of Level 3 Liabilities Measured on Recurring Basis Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Principal Payments on Credit Card Receivable from Credit Card Partner Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale Class of Stock [Line Items] Class of Stock [Line Items] Deferred income tax liability (Note 15) Deferred Income Tax Liabilities, Net Schedule of Other Liabilities Other Liabilities [Table Text Block] Fair value resulting from: Receivable From Credit Card Partner, Expected Fair Value With Change In Assumptions Receivable From Credit Card Partner, Expected Fair Value With Change In Assumptions Legal Entity [Axis] Legal Entity [Axis] Legal Entity [Axis] Total Assets Assets Value prior to closing of underwritten initial public offering (at least) Value Prior To Closing Of Underwritten Initial Public Offering On Conversion Represents value to the entity immediately prior to the closing of an underwritten initial public offering on conversion. Number of states and district marketplace is open to investors Number Of States And District Marketplace Is Open To Investors Refers to number of states and districts marketplace is open to investors. Cash Flows from Investing Activities: Cash Flows from Investing Activities: Cash Provided by (Used in) Investing Activity, Continuing Operation [Abstract] Restricted Cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Management Management [Member] Geographical [Domain] Geographical [Domain] Coastal Allocations Coastal Allocations [Member] Coastal Allocations Income Taxes Income Tax, Policy [Policy Text Block] Non-Cash Financing Activity - Accrual for Debt Issuance Costs Debt Issuance Costs Incurred During Noncash or Partial Noncash Transaction Deferred tax assets and liabilities [Abstract] Components of Deferred Tax Assets and Liabilities [Abstract] Twenty Percent Increase Twenty Percent Increase [Member] Twenty Percent Increase Research and development tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Research, Percent Other Expenses Segment Reporting, Other Segment Item, Amount Proceeds from Sales and Principal Payments of Loans Held for Sale at Fair Value Proceeds from Sales of Loans Held for Sale, at Fair Value Proceeds from Sale and Collection, Loan, Held-for-Sale Assets not yet placed in service Assets Not Yet Placed In Service [Member] Refers to long lived, depreciable assets that are not in use. Assets: Assets, Fair Value Disclosure [Abstract] Member’s Equity General Partner [Member] Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Impairment of long-lived assets Impairment, Long-Lived Asset, Held-for-Use Warrants issued and outstanding Warrant [Member] Consolidation of Variable Interest Entities Consolidation, Variable Interest Entity, Policy [Policy Text Block] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding ROU assets obtained or adjusted in exchange for new, amended and modified operating lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability 200 basis point decrease in both discount rates 200 Basis Point Decrease [Member] 200 Basis Point Decrease Level 2 Inputs Fair Value, Inputs, Level 2 [Member] Document Financial Statement Error Correction Flag Document Financial Statement Error Correction [Flag] State and local income taxes, net of federal income tax effect Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Convertible preferred stock, par value (in dollars per share) Temporary Equity, Par or Stated Value Per Share Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Minimum fee, 2027 Borrowers Loans Origination, Minimum Fee, Year Two Borrowers Loans Origination, Minimum Fee, Year Two Lessee, Operating Lease, Liability, Payment, Due [Abstract] Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Total Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Asset And Liability [Roll Forward] Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Asset And Liability Related Party Related Party [Member] Segment Adjusted EBITDA Adjusted Earnings Before Interest, Taxes, Depreciation, and Amortization Adjusted Earnings Before Interest, Taxes, Depreciation, and Amortization Change in Fair Value of Convertible Preferred Stock Warrants Aggregate fair value of warrants Fair Value Adjustment of Warrants Exercise of vested stock options (in shares) Options Issued and Outstanding, Options exercised - vested (in shares) Share Based Compensation Arrangement By Share Based Payment Award Vested Options Exercises In Period Share based compensation arrangement by share based payment award vested options exercises in period. Schedule of Components of Income Tax Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Plan Name Plan Name [Axis] Series E-1 And Series E-2 Convertible Preferred Stock Series E-1 And Series E-2 Convertible Preferred Stock [Member] Series E-1 And Series E-2 Convertible Preferred Stock [Member] Property and Equipment Property, Plant and Equipment, Policy [Policy Text Block] PEO PEO [Member] Proceeds from 2025 Term Loan (Note 11) Proceeds from Issuance of Secured Debt Payable to Investors Payable To Investors Payable to investors. Interest income on cash and cash equivalents Investment Income, Interest Intangible assets Deferred Tax Liabilities, Intangible Assets Income Tax Paid, by Individual Jurisdiction [Line Items] Income Tax Paid, by Individual Jurisdiction [Line Items] United States UNITED STATES Changes in Operating Assets and Liabilities: Changes in Operating Assets and Liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Changes in valuation allowances Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Volatility of common stock Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Accumulated Deficit Retained Earnings Retained Earnings [Member] Class of warrant or right expiration period Class of Warrant or Right Expiration Period Income Tax Jurisdiction Income Tax Jurisdiction [Axis] Receivable from Credit Card Partner, at Fair Value Receivable from Credit Card Partner, at Fair Value (Note 5 and 7) Fair value, using the following assumptions: Accounts Receivable from Securitization Share-Based Payment Arrangement [Abstract] Cash, Cash Equivalents and Restricted Cash at Beginning of the Period Cash, Cash Equivalents and Restricted Cash at End of the Period Total Cash, Cash Equivalents and Restricted Cash Total Cash, Cash Equivalents and Restricted Cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Administration Fee Expense – Related Party Related Parties Amount in Cost of Sales Income Statement [Abstract] Credit Card Derivative Credit Card Derivative (Note 5) Fair value, using the following assumptions: Derivative Asset Interest payable Increase (Decrease) in Interest Payable, Net Dividend yield Measurement Input, Expected Dividend Rate [Member] Product and Service [Domain] Product and Service [Domain] Fee deposits refunds Fee Deposits Refund Obligation Fee Deposits Refund Obligation Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Income Tax Paid, by Individual Jurisdiction [Table] Income Tax Paid, by Individual Jurisdiction [Table] New customer account split percentage New Customer Account Split Percentage New Customer Account Split Percentage Various fees and charges Credit Card Miscellaneous Fees Credit Card Miscellaneous Fees 2023-1, Class B Notes Securtization Trust PMIT 2023-1, Class B Notes [Member] Securtization Trust PMIT 2023-1, Class B Notes City Area Code City Area Code Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Market servicing rate decrease of 0.025% Market Servicing Rate Decrease To 60% [Member] Market Servicing Rate Decrease To 60% Fee deposits refund obligation, issued Fee Deposits Refund Obligation, Refunds Issued Fee Deposits Refund Obligation, Refunds Issued Principal repayments on Borrower Loans Cash payment of Loan Trailing Fee Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Securitization amount Loan, Securitized or Asset-Backed Financing Arrangement, Principal Outstanding Net deferred tax liability Deferred Tax Liabilities, Net General and Administrative General and Administrative Expense Servicing Assets Servicing Assets [Member] Servicing assets. Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Operating lease liability, location Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration] Related Party Transactions [Abstract] Discount rate on Prosper Allocations Measurement Input, Discount Rate on Allocations [Member] Measurement Input, Discount Rate on Allocations Exercise of Series F convertible preferred stock warrant (Note 13) Temporary Equity, Stock Issued During Period Value Conversion Of Convertible Securities Temporary Equity, Stock Issued During Period Value Conversion Of Convertible Securities Other Liabilities Total Other Liabilities Other Liabilities Goodwill Goodwill Schedule of Value Used In Determining Present Value of Leases Lease, Cost [Table Text Block] Common stock convertible ratio if preferred stock did not participate Common Stock Convertible Ratio If Preferred Stock Did Not Participate Refers to common stock convertible ratio if preferred stock did not participate. 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Credit Card Program Agreement Credit Card Program Agreement [Member] Credit Card Program Agreement Commitments and Contingencies (see Note 17) Commitments and Contingencies Market servicing rate decrease of 0.10% 10 Basis Point Decrease [Member] 10 Basis Point Decrease Maturity term one, in months Continuing Involvement With Transferred Financial Assets Original Term, One Continuing Involvement With Transferred Financial Assets Original Term, One Notes Loans Payable [Member] Exercise of Series F convertible preferred stock warrant (in shares) Temporary Equity, Stock Issued During Period Shares Conversion Of Convertible Securities Temporary Equity, Stock Issued During Period Shares Conversion Of Convertible Securities Convertible Preferred Stock Warrants Effective Income Tax Rate Reconciliation, Convertible Preferred Stock Warrants, Amount Effective Income Tax Rate Reconciliation, Convertible Preferred Stock Warrants, Amount Concentration Risk [Line Items] Concentration Risk [Line Items] Total net deferred tax asset Deferred Tax Assets, Net Transaction Fee Refund Liability (Note 17) Transaction Fee Refund Transaction Fee Refund PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Discount rate assumption Fair Value Assumptions Discount Rate [Member] Discount rate used as an input to fair value measurement. Schedule of Servicing Assets and Liabilities Measured at Fair Value Schedule Of Servicing Assets And Liabilities At Amortized Fair Value [Table Text Block] Schedule of servicing assets and liabilities at amortized fair value. Accelerated amortization of PWIT debt issuance costs Accelerated Amortization of Debt Issuance Costs, Revenues Accelerated Amortization of Debt Issuance Costs, Revenues Operating Revenues: Operating Revenues: Revenue from Contract with Customer [Abstract] Debt fair value Debt Instrument, Fair Value Disclosure Schedule of Unrecognized Tax Benefits Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] 2022 Term Loan 2022 Term Loan [Member] 2022 Term Loan 100 basis point decrease in both discount rates 100 Basis Point Decrease [Member] 100 Basis Point Decrease California CALIFORNIA Derivative Contract [Domain] Derivative Contract [Domain] Transfer of Loans Held for Sale to Borrower Loans upon PMIT 2024-1 Transaction, at Fair Value Purchases of Credit Card principal receivables Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net Convertible Preferred Stock Warrant Liability (Note 13) Mandatorily Redeemable Preferred Stock, Fair Value Disclosure All Individuals All Individuals [Member] Longterm Debt Type Long-Term Debt, Type [Domain] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Accounts Receivable Increase (Decrease) in Receivables Purchases of Property and Equipment Purchases of Property and Equipment Payments to Acquire Property, Plant, and Equipment Name Forgone Recovery, Individual Name Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Reconciliation to Amounts on Consolidated Balance Sheets Reconciliation to Amounts on Consolidated Balance Sheets: Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation [Abstract] Series A-1 Series A One Convertible Preferred Stock [Member] Series A-1 convertible preferred stock. Tax period subject to examination Income Tax Period Subject To Examination Income tax period subject to examination. Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Geographical [Axis] Geographical [Axis] Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Borrower Loans Borrower Loans [Member] Borrower loans and loans held for sale. Fixed interest rate, minimum Fixed Interest Rate Minimum Fixed interest rate minimum. Partner Type Of Partners Capital Account Name Partner Type of Partners' Capital Account, Name [Domain] Loan Trailing Fee Liability (Note 10) Obligations, Fair Value Disclosure Servicing fee, percent Servicing Fee As Percentage Of Outstanding Principal Balance Of Borrower Loan Represents servicing fee as percentage equal to the outstanding principal balance of the corresponding borrower loan. Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Aggregate intrinsic value, Options vested and exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value Liquidation preference (in shares) Liquidation Preference, Outstanding Shares Temporary Equity, Liquidation Preference Convertible Preferred Stock Held by Consolidated VIE Temporary Equity, Convertible Preferred Stock, Consolidated VIE [Member] Temporary Equity, Convertible Preferred Stock, Consolidated VIE Audit Information [Abstract] Audit Information [Abstract] Earnings Per Share [Abstract] Proceeds from exercise of convertible preferred stock warrants Proceeds from Issuance of Preferred Stock, Preference Stock, and Warrants Prepayment rate increase Prepayment Rate Increase Prepayment rate increase. Schedule of Computation of Diluted Net Income (Loss) Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Tax credit carryforwards Tax Credit Carryforward, Amount Number of warrants issued to the Consortium (in shares) Number Of Warrants Issued Number Of Warrants Issued Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Prepayment rate decrease Prepayment Rate Decrease Prepayment rate decrease. Contractually specified servicing fees, late charges and ancillary fees Contractually Specified Servicing Fee, Late Fee, and Ancillary Fee Earned in Exchange for Servicing Financial Asset Award Timing Disclosures [Line Items] Minimum number of days for which loans originated were delinquent Minimum Period That Borrower Loans Were Delinquent Minimum period that borrower loans were delinquent. Renewal term Lessee, Operating Lease, Renewal Term 100 basis point decrease One Hundred Basis Point Decrease [Member] Represents 100 basis point decrease in the input to fair value assumptions. CONVERTIBLE PREFERRED STOCK, CONVERTIBLE PREFERRED STOCK WARRANT LIABILITY AND COMMON STOCK Equity [Text Block] Partner Type Of Partners Capital Account Partner Type [Axis] State Deferred State and Local Income Tax Expense (Benefit) Other Non-Cash Changes in Borrower Loans, Loans Held for Sale and Notes Other Non Cash Changes In Borrower Loans Loans Held For Sale And Notes Other non cash changes in borrower loans loans held for sale and notes. Net Loss Net Loss Net Loss Net Income (Loss) Attributable to Parent Schedule of Effective Income Tax Reconciliation Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Ten Percent Increase Ten Percent Increase [Member] Ten Percent Increase Other Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Preferred stock, shares authorized Preferred Stock, Shares Authorized Adoption Date Trading Arrangement Adoption Date Series E-2 Series E-2 Preferred Stock [Member] Series E-2 Preferred Stock [Member] Tax Credit Carryforward [Table] Tax Credit Carryforward [Table] Operating lease contract term Lessee, Operating Lease, Term of Contract Expected term (in years) Measurement Input, Expected Term [Member] Customer [Axis] Customer [Axis] Cash Flows from Financing Activities: Cash Flows from Financing Activities: Cash Provided by (Used in) Financing Activity, Continuing Operation [Abstract] Line of Credit Line of Credit [Member] Stock-Based Compensation Compensation Related Costs, Policy [Policy Text Block] Accumulated Deficit (Accumulated Deficit) Retained Earnings Retained Earnings (Accumulated Deficit) Gain (loss) on embedded derivatives Revenue earned Embedded Derivative, Gain (Loss) on Embedded Derivative, Net Schedule of Stock Based Compensation Included in Consolidated Statements of Operations Share-Based Payment Arrangement, Cost by Plan [Table Text Block] Proceeds from issuance of convertible preferred stock Proceeds from Issuance of Convertible Preferred Stock Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] 200 basis point increase in both discount rates 200 Basis Point Increase [Member] 200 Basis Point Increase Less: Change in fair value Servicing Asset at Fair Value, Changes in Fair Value Resulting from Changes in Valuation Inputs or Changes in Assumptions Discount rate Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate Non accrual status past due date Non Accrual Status Past Due Date Non accrual status past due date. 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Market servicing rate Fair Value Assumptions Market Servicing Rate [Member] Fair Value Assumptions Market Servicing Rate Massachusetts MASSACHUSETTS All Adjustments to Compensation All Adjustments to Compensation [Member] Amendment Flag Amendment Flag Transfer of Loans Held for Sale to Borrower Loans upon PMIT 2024-1 Transaction, at Fair Value Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset and Liabilities, Transfers, Net Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset and Liabilities, Transfers, Net Borrower Loans sold to third parties Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Sales Transfers and Servicing [Abstract] Termination Date Trading Arrangement Termination Date Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Weighted-average discount rate Operating Lease, Weighted Average Discount Rate, 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amortization Property, Plant, And Equipment And Operating Lease Right-Of-Use Asset, Accumulated Depreciation And Amortization Property, Plant, And Equipment And Operating Lease Right-Of-Use Asset, Accumulated Depreciation And Amortization Subsequent Events [Abstract] Subsequent Events [Abstract] Segment Reporting [Abstract] Origination and Servicing Origination And Servicing, Depreciation Expense Origination And Servicing, Depreciation Expense Operating lease expense Operating Lease, Expense Debt Disclosure [Abstract] Debt Disclosure [Abstract] Interest Income on Financial Instruments Interest Income on Borrower Loans Interest and Fee Income, Loans, Consumer Income Tax Authority Name Income Tax Authority, Name [Axis] Default rate Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Expected Credit Losses Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Consolidated Entities [Axis] Consolidated Entities [Axis] Applying a 0.8 multiplier to default rate Zero Point Eight Multiplier To Default Rate [Member] Zero Point Eight Multiplier To Default Rate Loan trailing fee, percent Servicing Asset, Program Fee Servicing Asset, Program Fee Options Issued and Outstanding, Options granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Borrower Loans And Loans Held For Sale Member Borrower Loans And Loans Held For Sale Member Minimum percentage of voting securities considered for related parties (more than) Minimum Percentage Of Voting Securities Holders Engaged In Various Transactions As Related Party Minimum percentage of voting securities holders engaged in various transactions as related party. Use of Estimates Use of Estimates, Policy [Policy Text Block] Principal repayments on Borrower Loans Principal repayments on Credit Card receivables Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements Change in fair value of servicing liability Servicing Liability at Fair Value, Period Increase (Decrease) Series A and Series B Convertible Preferred Stock Series A and Series B Convertible Preferred Stock [Member] Series A and Series B Convertible Preferred Stock [Member] SUBSEQUENT EVENTS Subsequent Events [Text Block] Insider Trading Arrangements [Line Items] Origination and Servicing Origination And Servicing Expense [Member] Origination and servicing expense. Weighted-Average Exercise Price, Options forfeited (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Return-to-provision Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Percent Total Liabilities Liabilities Antidilutive Securities Name Antidilutive Securities, Name [Domain] Series G Series G Preferred Stock [Member] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Accumulated Amortization Operating Lease, Right-of-Use Asset, Accumulated Amortization Operating Lease, Right-of-Use Asset, Accumulated Amortization Change related to current tax year position Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Borrower Loans sold to third parties Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset And Liabilities Sales Sales that have taken place during the period in relation to assets and liabilities measured at fair value and categorized within Level 3 of the fair value hierarchy. Unamortized debt issuance costs Unamortized Debt Issuance Expense Purchase of Borrower Loans/Issuance of Notes Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset And Liability Purchases Fair value measurement with unobservable inputs reconciliation recurring basis asset and liability purchases. Tax Credit Carryforward Name Tax Credit Carryforward, Name [Domain] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Convertible Preferred Stock Warrant Liability Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Share Value, Amount, Noncurrent Fixed interest rate, maximum Fixed Interest Rate Maximum Fixed interest rate maximum.