Residential Mortgage Loans - Schedule of Components of Consolidated VIE Assets and Liability by Securitization (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Variable Interest Entity [Line Items]
Consolidated VIE Assets	$ 8,765,386	$ 8,663,988
Consolidated VIE Liabilities	4,178,560	4,040,130
Net Retained Interest	$ 4,802,038	4,695,348
RMCT 2024-J1
Variable Interest Entity [Line Items]
Closing Date	2024-07
Consolidated VIE Assets	$ 312,014	317,782
Consolidated VIE Liabilities	305,534	311,751
Net Retained Interest	$ 6,480	6,031
RMCT 2024-J2
Variable Interest Entity [Line Items]
Closing Date	2024-10
Consolidated VIE Assets	$ 380,429	403,525
Consolidated VIE Liabilities	374,146	397,844
Net Retained Interest	$ 6,283	5,681
RMCT 2025-J1
Variable Interest Entity [Line Items]
Closing Date	2025-02
Consolidated VIE Assets	$ 372,098	0
Consolidated VIE Liabilities	360,035	0
Net Retained Interest	12,063	0
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Consolidated VIE Assets	1,064,541	721,307
Consolidated VIE Liabilities	1,039,715	709,595
Net Retained Interest	$ 24,826	$ 11,712