Residential Mortgage Loans - Schedule of Components of Income (Loss) on Consolidated VIEs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Interest expense	$ (29,391)	$ (23,282)	$ (85,501)	$ (66,526)
Total income (loss) on consolidated VIEs	465	$ 0	465	$ 0
Variable Interest Entity, Primary Beneficiary
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net change in fair value of VIE assets and liabilities reported under the fair value option	265		265
Interest income	4,039		4,039
Interest expense	(3,682)		(3,682)
Other expenses	(157)		(157)
Total income (loss) on consolidated VIEs	$ 465		$ 465