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, 2026	Dec. 31, 2025
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Fair Value	$ 4,939,908	$ 4,438,882
Residential Mortgage Loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Fair Value	781,758	583,963
Residential Mortgage 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	113,164	101,757
Unpaid Principal Balance	140,862	118,957
Residential Mortgage 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	3,493	1,977
Unpaid Principal Balance	$ 3,677	$ 2,303

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details