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Derivative Instruments - Schedule of Components of Realized and Unrealized Gains and Losses (Details) - Trading - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Realized Gains (Losses) | $ (9,614) | $ (4,358) | $ 24,157 | $ 9,781
Unrealized Gains (Losses) | (3,392) | (56,282) | (110,931) | (5,739)
Interest rate caps |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Realized Gains (Losses) | 0 | 0 | 0 | 0
Unrealized Gains (Losses) | 9 | (209) | 54 | 3,044
Options |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Realized Gains (Losses) | (517) | (772) | 2,125 | (2,261)
Unrealized Gains (Losses) | (408) | (7) | (408) | 0
IRLCs |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Realized Gains (Losses) | 0 | 0 | 0 | 0
Unrealized Gains (Losses) | (1,940) | 0 | (1,940) | 0
TBAs |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Realized Gains (Losses) | 484 | 0 | 480 | 0
Unrealized Gains (Losses) | (226) | 0 | (121) | 0
Interest rate swaps |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Realized Gains (Losses) | 1,804 | (835) | 33,219 | 16,591
Unrealized Gains (Losses) | (5,868) | (55,611) | (106,470) | (7,760)
Credit default swaps |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Realized Gains (Losses) | (1,240) | (1,022) | (3,454) | (3,056)
Unrealized Gains (Losses) | 210 | (720) | (542) | (1,023)
Futures |  |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |  |
Realized Gains (Losses) | (10,145) | (1,729) | (8,213) | (1,493)
Unrealized Gains (Losses) | $ 4,831 | $ 265 | $ (1,504) | $ 0

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