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Fair Value of Financial Instruments - Level 3 Assets (Details) - Recurring basis - Level 3 - Residential whole loans, at fair value - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2024 | Mar. 31, 2023
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance at beginning of period | $ 7,455,729 | $ 5,676,430
Purchases and originations | 488,051 | 336,815
Draws | 163,744 | 119,076
Changes in fair value recorded in Net gain/(loss) on residential whole loans measured at fair value through earnings | 10,208 | 127,606
Repayments | (346,564) | (233,434)
Loan sales and repurchases | (159,895) | (578)
Transfer to REO | (12,020) | (12,537)
Balance at end of period | $ 7,599,253 | $ 6,013,378

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- Definition Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Originations And Draws + References No definition available. + Details
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- Definition Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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