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Residential Loans, at Fair Value - Fair Value Compared to Unpaid Principal (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
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SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Fair Value | $ 3,841,738 | $ 3,084,303 | $ 3,525,080 | $ 3,575,601
Unpaid Principal Balance | 300,138 |  |  |
Residential loans |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Fair Value | 632,266 | 827,535 |  |
Greater than 90 days past due | Residential loans |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Fair Value | 159,558 | 199,485 |  |
Unpaid Principal Balance | 183,067 | 220,577 |  |
Less than 90 days past due | Residential loans |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Fair Value | 8,098 | 9,362 |  |
Unpaid Principal Balance | $ 8,749 | $ 9,948 |  |

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