v3.26.3
Fair Value Measurement - Schedule of Aggregate Fair Value and Principal Outstanding of All Loans And Loans 90 Days or More Past Due (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Financing Receivable, Past Due [Line Items]    
Fair value [1] $ 940,747 $ 984,552
Loans (at fair value)    
Financing Receivable, Past Due [Line Items]    
Outstanding principal balance 987,630 1,038,521
Net fair value and accrued interest adjustments (46,883) (53,969)
Fair value 940,747 984,552
Loans (at fair value) | Auto Loans    
Financing Receivable, Past Due [Line Items]    
Fair value 391,400 367,400
Loans (at fair value) | HELOCs    
Financing Receivable, Past Due [Line Items]    
Fair value 156,500 149,500
Loans > 90 Days Past Due | Loans (at fair value)    
Financing Receivable, Past Due [Line Items]    
Outstanding principal balance 15,475 17,685
Net fair value and accrued interest adjustments (11,014) (13,094)
Fair value 4,461 4,591
Loans > 90 Days Past Due | Loans (at fair value) | Auto Loans    
Financing Receivable, Past Due [Line Items]    
Fair value 0 0
Loans > 90 Days Past Due | Loans (at fair value) | HELOCs    
Financing Receivable, Past Due [Line Items]    
Fair value $ 0 $ 0
[1] Includes $53.8 million and $28.9 million of loans, at fair value, contributed as collateral for the consolidated securitization as of December 31, 2025 and September 30, 2026, respectively. Refer to “Note 5. Fair Value Measurement” for details.