v3.26.1
FAIR VALUE OF ASSETS AND LIABILITIES - Assumptions for Borrower Loans, Loans Held for Sale and Notes (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower Loans, at Fair Value [1],[2] $ 309,737 $ 461,785
Notes, at Fair Value $ 243,900 283,030
Prepayment rate increase 110.00%  
Prepayment rate decrease 90.00%  
Default rate increase 110.00%  
Default rate decrease 90.00%  
Notes    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Notes, at Fair Value $ 243,900 283,030
Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower Loans, at Fair Value 245,337 285,578
Notes, at Fair Value $ 243,900 283,030
Prepayment rate increase 1.10%  
Prepayment rate decrease 0.90%  
Default rate increase 1.10%  
Default rate decrease 0.90%  
Prosper Funding LLC | Notes    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Notes, at Fair Value $ 243,900 283,030
Default rate assumption    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Default rate increase 110.00%  
Default rate decrease 90.00%  
Notes | Prosper Funding LLC | Notes    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Notes, at Fair Value $ 243,900 283,030
Notes | Discount rate assumption | 100 basis point increase    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Notes 241,752 280,451
Notes | Discount rate assumption | 100 basis point increase | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Notes 241,752 280,451
Notes | Discount rate assumption | 200 basis point increase    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Notes 239,655 277,934
Notes | Discount rate assumption | 200 basis point increase | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Notes 239,655 277,934
Notes | Discount rate assumption | 100 basis point decrease    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Notes 246,096 285,669
Notes | Discount rate assumption | 100 basis point decrease | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Notes 246,096 285,669
Notes | Discount rate assumption | 200 basis point decrease    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Notes 248,352 288,381
Notes | Discount rate assumption | 200 basis point decrease | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Notes 248,352 288,381
Notes | Default rate assumption | Applying a 1.1 multiplier to default rate    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Notes 241,944 279,718
Notes | Default rate assumption | Applying a 1.1 multiplier to default rate | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Notes 241,944 279,718
Notes | Default rate assumption | Applying a 1.2 multiplier to default rate    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Notes 239,987 276,422
Notes | Default rate assumption | Applying a 1.2 multiplier to default rate | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Notes 239,987 276,422
Notes | Default rate assumption | Applying a 0.9 multiplier to default rate    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Notes 245,853 286,358
Notes | Default rate assumption | Applying a 0.9 multiplier to default rate | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Notes 245,853 286,358
Notes | Default rate assumption | Applying a 0.8 multiplier to default rate    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Notes 247,806 289,702
Notes | Default rate assumption | Applying a 0.8 multiplier to default rate | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Notes $ 247,806 289,702
Notes | Default rate assumption | Ten Percent Increase    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Prepayment rate increase 110000.00%  
Notes | Default rate assumption | Twenty Percent Increase    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Prepayment rate decrease 120000.00%  
Notes | Default rate assumption | Ten Percent Decrease    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Default rate increase 90000.00%  
Notes | Default rate assumption | Twenty Percent Decrease    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Default rate decrease 80000.00%  
Borrower Loans    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower Loans, at Fair Value $ 309,737 461,785
Borrower Loans | Discount rate assumption | 100 basis point increase    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower loans 307,014 457,584
Borrower Loans | Discount rate assumption | 100 basis point increase | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower loans 243,180  
Borrower Loans | Discount rate assumption | 200 basis point increase    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower loans 304,354 453,483
Borrower Loans | Discount rate assumption | 200 basis point increase | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower loans 241,073  
Borrower Loans | Discount rate assumption | 100 basis point decrease    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower loans 312,526 466,090
Borrower Loans | Discount rate assumption | 100 basis point decrease | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower loans 247,547  
Borrower Loans | Discount rate assumption | 200 basis point decrease    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower loans 315,384 470,502
Borrower Loans | Discount rate assumption | 200 basis point decrease | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower loans 249,810  
Borrower Loans | Default rate assumption | Applying a 1.1 multiplier to default rate    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower loans 307,253 456,385
Borrower Loans | Default rate assumption | Applying a 1.1 multiplier to default rate | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower loans 243,371  
Borrower Loans | Default rate assumption | Applying a 1.2 multiplier to default rate    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower loans 304,767 451,011
Borrower Loans | Default rate assumption | Applying a 1.2 multiplier to default rate | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower loans 241,402  
Borrower Loans | Default rate assumption | Applying a 0.9 multiplier to default rate    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower loans 312,219 467,211
Borrower Loans | Default rate assumption | Applying a 0.9 multiplier to default rate | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower loans 247,304  
Borrower Loans | Default rate assumption | Applying a 0.8 multiplier to default rate    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower loans 314,699 472,663
Borrower Loans | Default rate assumption | Applying a 0.8 multiplier to default rate | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower loans 249,269  
Borrower Loans | Notes | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower Loans, at Fair Value $ 245,337 285,578
Borrower Loans | Notes | Discount rate assumption | 100 basis point increase | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower loans   282,980
Borrower Loans | Notes | Discount rate assumption | 200 basis point increase | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower loans   280,443
Borrower Loans | Notes | Discount rate assumption | 100 basis point decrease | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower loans   288,240
Borrower Loans | Notes | Discount rate assumption | 200 basis point decrease | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower loans   290,969
Borrower Loans | Notes | Default rate assumption | Applying a 1.1 multiplier to default rate | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower loans   282,239
Borrower Loans | Notes | Default rate assumption | Applying a 1.2 multiplier to default rate | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower loans   278,916
Borrower Loans | Notes | Default rate assumption | Applying a 0.9 multiplier to default rate | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower loans   288,934
Borrower Loans | Notes | Default rate assumption | Applying a 0.8 multiplier to default rate | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Borrower loans   $ 292,306
Borrower Loans And Loans Held For Sale Member | Default rate assumption | Ten Percent Increase    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Prepayment rate increase 110000.00%  
Borrower Loans And Loans Held For Sale Member | Default rate assumption | Twenty Percent Increase    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Prepayment rate decrease 120000.00%  
Discount rate | Notes | Discount rate assumption    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Fair value assumptions 0.0867 0.0770
Discount rate | Notes | Discount rate assumption | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Fair value assumptions 0.0867 0.0770
Discount rate | Borrower Loans | Discount rate assumption    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Fair value assumptions 0.0853 0.0772
Discount rate | Borrower Loans | Discount rate assumption | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Fair value assumptions 0.0867  
Discount rate | Borrower Loans | Notes | Discount rate assumption | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Fair value assumptions   0.0770
Default rate | Notes | Default rate assumption    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Fair value assumptions 0.1148 0.1325
Default rate | Notes | Default rate assumption | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Fair value assumptions 0.1148 0.1325
Default rate | Borrower Loans | Default rate assumption    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Fair value assumptions 0.1179 0.1259
Default rate | Borrower Loans | Default rate assumption | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Fair value assumptions 0.1148  
Default rate | Borrower Loans | Notes | Default rate assumption | Prosper Funding LLC    
Fair Value Inputs Assets Quantitative Information [Line Items]    
Fair value assumptions   0.1335
[1]
The following table presents the assets and liabilities of consolidated variable interest entities (“VIEs”), which are included in the Consolidated Balance Sheets above. The assets in the table below may only be used to settle obligations of consolidated VIEs and are in excess of those obligations. Additionally, the assets and liabilities in the table below include third-party assets and liabilities of consolidated VIEs only and exclude intercompany balances that eliminate in consolidation. Refer to Note 7, Securitizations, and Note 11, Debt, to the notes to the consolidated financial statements for additional information.

December 31,
20252024
Assets of consolidated VIEs, included in total assets above:
Restricted Cash$11,892 $17,961 
Accounts Receivable1,376 1,019 
Borrower Loans, at Fair Value64,400 176,208 
Receivable from Credit Card Partner, at Fair Value99,865 104,153 
Total assets of consolidated VIEs$177,533 $299,341 
Liabilities of consolidated VIEs, included in total liabilities above:
Notes Issued by Securitization Trusts$149,902 $258,960 
Other Liabilities2,163 1,570 
Total liabilities of consolidated VIEs$152,065 $260,530 
[2] (1) Includes amounts in consolidated variable interest entities presented separately in the table below.