Residential Mortgage Loans - Schedule of Components of Consolidated VIE Assets and Liability by Securitization (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Variable Interest Entity [Line Items]
Consolidated VIE Assets	$ 9,580,657	$ 8,663,988
Consolidated VIE Liabilities	5,087,976	4,040,130
Net Retained Interest	$ 4,906,830	4,695,348
RMCT 2024-J1
Variable Interest Entity [Line Items]
Closing Date	2024-07
Consolidated VIE Assets	$ 296,362	317,782
Consolidated VIE Liabilities	290,207	311,751
Net Retained Interest	$ 6,155	6,031
RMCT 2025-J2
Variable Interest Entity [Line Items]
Closing Date	2025-06
Consolidated VIE Assets	$ 402,284	0
Consolidated VIE Liabilities	395,379	0
Net Retained Interest	$ 6,905	0
RMCT 2024-J2
Variable Interest Entity [Line Items]
Closing Date	2024-10
Consolidated VIE Assets	$ 339,464	403,525
Consolidated VIE Liabilities	333,977	397,844
Net Retained Interest	$ 5,487	5,681
RMCT 2025-J1
Variable Interest Entity [Line Items]
Closing Date	2025-02
Consolidated VIE Assets	$ 364,202	0
Consolidated VIE Liabilities	352,332	0
Net Retained Interest	11,870	0
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Consolidated VIE Assets	1,402,312	721,307
Consolidated VIE Liabilities	1,371,895	709,595
Net Retained Interest	$ 30,417	$ 11,712