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Residential Loans and Residential Loans Held for Sale, at Fair Value - Schedule of Residential Mortgage Loans, Fair Value Compared to Unpaid Principal (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Fair Value	$ 4,256,683	$ 3,841,738
Residential loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Fair Value	308,422	632,266
Residential loans | Greater than 90 days past due
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Fair Value	99,764	159,558
Unpaid Principal Balance	116,087	183,067
Residential loans | Less than 90 days past due
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Fair Value	938	8,098
Unpaid Principal Balance	$ 993	$ 8,749

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