Finance Receivables at Fair Value - Additional Information (Detail) - USD ($) $ in Thousands |
12 Months Ended | |||
|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
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| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
| Fair value of finance receivables | $ 493,118 | $ 425,240 | ||
| Aggregate balance of finance receivables | [1] | 546,236 | $ 473,696 | |
| Fair value, option, credit risk, gains (losses) on assets | $ (36,600) | |||
| Recency delinquency | ||||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
| Accrual period for financing receivables (in days) | 60 days | |||
| Contractual delinquency | ||||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
| Accrual period for financing receivables (in days) | 90 days | 90 days | ||
| 90 Days Past Due | ||||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
| Fair value of finance receivables | $ 16,400 | $ 14,400 | ||
| Aggregate balance of finance receivables | $ 1,500 | $ 1,300 | ||
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