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Residential Investor Loans - Schedule of Activity of Unsecuritized Investor Loans (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 USD ($) | Jun. 30, 2024 USD ($) | Jun. 30, 2025 USD ($) loan | Jun. 30, 2024 USD ($)
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Principal balance of loans originated |  |  | $ 5,210,370 | $ 2,901,465
Principal balance of loans sold to third parties |  |  | $ 537 | 669
Number of loans transferred | loan |  |  | 1 |
Residential Investor Term, Unsecuritized |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Principal balance of loans originated | $ 228,545 | $ 217,538 | $ 416,763 | 334,628
Principal balance of loans acquired (1) | 36,237 | 648 | 43,037 | 648
Principal balance of loans sold to third parties | 250,795 | 252,424 | 433,210 | 258,456
Transfer of loans between portfolios | 0 | 0 | 0 | 0
Residential Investor Bridge, Unsecuritized |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Principal balance of loans originated | 141,756 | 234,115 | 407,900 | 428,144
Principal balance of loans acquired (1) | 25,233 | 0 | 25,233 | 15,677
Principal balance of loans sold to third parties | 226,081 | 156,294 | 382,574 | 209,515
Transfer of loans between portfolios | $ 75,994 | $ (89,202) | $ 25,375 | $ (187,933)

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- Definition Line items represent financial concepts included in a table. 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