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Asset-Backed Securities Issued - Additional Information (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Jul. 31, 2026 | Sep. 30, 2024 | Sep. 30, 2024 | Dec. 31, 2023
Debt Instrument [Line Items] |  |  |  |
Carrying value of collateral |  | $ 4,129,209 | $ 4,129,209 | $ 3,405,564
VIEs |  |  |  |
Debt Instrument [Line Items] |  |  |  |
VIE, ownership interest rate (as a percent) |  |  | 80.00% |
Asset-backed securities issued | VIEs |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Contractual maturities of ABS |  |  | 5 years |
Sequoia securities | VIEs |  |  |  |
Debt Instrument [Line Items] |  |  |  |
ABS issued, at amortized cost |  | $ 205,000 |  |
Debt Instrument interest rate |  | 8.50% | 8.50% |
VIE, ownership interest rate (as a percent) |  | 100.00% |  |
Sequoia securities | VIEs | Forecast |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Interest rate increase | 3.00% |  |  |
Sequoia Re-securitization Trust | VIEs |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Carrying value of collateral |  | $ 83,000 | $ 83,000 |
Sequoia Securitization Trusts | VIEs |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Carrying value of collateral |  | $ 152,000 | $ 152,000 |

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