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Residential Consumer Loans - Schedule of Characteristics of Residential Consumer Loans Held-for-Sale (Details) $ in Thousands | Sep. 30, 2024 USD ($) loan | Dec. 31, 2023 USD ($) loan
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Residential Consumer Loans |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |
Unpaid principal balance | $ 1,348,819 | $ 916,877
Fair value of loans | 1,362,349 | 911,192
Market value of loans pledged as collateral under short-term borrowing agreements | $ 1,350,551 | $ 907,742
Weighted average coupon | 6.63% | 6.25%
Residential Loans at Fair Value | Financing Receivables, Equal to Greater than 90 Days Past Due |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |
Number of loans in foreclosure | loan | 0 | 0

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