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Residential Loans, at Fair Value - Schedule of Residential Mortgage Loans Held in Securitization Trusts, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Principal	$ 4,272,757	$ 4,129,335
Discount	(104,324)	(74,755)
Unrealized losses, net	(142,406)	(212,842)
Carrying value	4,026,027	3,841,738
Consolidated SLST | VIE, Primary Beneficiary
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Principal	1,353,853	1,111,633
Discount	(62,517)	(24,303)
Unrealized losses, net	(91,953)	(121,658)
Carrying value	1,199,383	965,672
Residential loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Principal	381,366	652,642
Discount	(1,780)	(1,750)
Unrealized losses, net	(12,497)	(18,626)
Carrying value	367,089	632,266
Residential loans held in securitization trusts
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Principal	2,537,538	2,365,060
Discount	(40,027)	(48,702)
Unrealized losses, net	(37,956)	(72,558)
Carrying value	$ 2,459,555	$ 2,243,800

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