Investment in Loans (Schedule of Consumer Loans) (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | ||||
|---|---|---|---|---|---|---|
Mar. 31, 2026 |
Dec. 31, 2025 |
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| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||
| Unpaid Principal Balance | $ 16,647,345 | $ 16,000,731 | ||||
| Unamortized Premium (Discount) | (252,107) | (245,735) | ||||
| Loans, at fair value(1)(2) | [1],[2] | $ 17,393,161 | $ 16,640,647 | |||
| Weighted Average | ||||||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||
| Weighted average life | 5 years 18 days | 5 years 3 months 10 days | ||||
| Consumer loans | ||||||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||
| Unpaid Principal Balance | $ 154 | $ 190 | ||||
| Unamortized Premium (Discount) | 163 | 148 | ||||
| Investments, at fair value, Cost | 317 | 338 | ||||
| Gains | 22 | 36 | ||||
| Losses | (204) | (215) | ||||
| Loans, at fair value(1)(2) | 135 | $ 159 | ||||
| Realized Losses, Write offs on loans | $ (21) | |||||
| Consumer loans | Weighted Average | ||||||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||||
| Weighted average life | 10 months 20 days | 10 months 20 days | ||||
| Delinquency (Days) | 9 days | 14 days | ||||
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