Finance Receivables at Fair Value - Schedule of Components of Installment Finance Receivables At Fair Value (Details) - USD ($) $ in Thousands |
Sep. 30, 2026 |
Dec. 31, 2025 |
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|---|---|---|---|---|
| Receivables [Abstract] | ||||
| Unpaid principal balance of finance receivables - accrual | $ 421,343 | $ 454,542 | ||
| Unpaid principal balance of finance receivables - non-accrual | 37,288 | 38,576 | ||
| Unpaid principal balance of finance receivables | 458,631 | 493,118 | ||
| Finance receivables at fair value - accrual | 491,708 | 524,577 | ||
| Finance receivables at fair value - non-accrual | 3,450 | 3,590 | ||
| Finance receivables at fair value, excluding accrued interest receivable | 495,158 | 528,167 | ||
| Accrued interest receivable | 23,726 | 18,069 | ||
| Finance receivables at fair value | [1] | 518,884 | 546,236 | |
| Difference between unpaid principal balance and fair value | $ 36,527 | $ 35,049 | ||
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