Home Equity Investments (HEI) - Schedule of Components of HEI Income, Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Schedule of Equity Method Investments [Line Items]
Total HEI (loss) income, net	$ (12,899)	$ 15,883	$ (2,733)	$ 24,969
Interest expense	270,502	200,124	514,654	380,654
Unsecuritized HEI
Schedule of Equity Method Investments [Line Items]
Total HEI (loss) income, net	(14,306)	11,663	(7,170)	17,806
Securitized HEI
Schedule of Equity Method Investments [Line Items]
Total HEI (loss) income, net	8,621	17,029	20,533	32,453
ABS Issued From HEI Securitization
Schedule of Equity Method Investments [Line Items]
Total HEI (loss) income, net	(5,262)	(5,472)	(9,031)	(12,881)
Interest expense	3,000	6,000	3,000	6,000
Net market valuation (losses) recorded on non-controlling interests in HEI securitizations
Schedule of Equity Method Investments [Line Items]
Total HEI (loss) income, net	(2,133)	(7,381)	(7,342)	(12,508)
Other
Schedule of Equity Method Investments [Line Items]
Total HEI (loss) income, net	181	44	277	99
Direct HEI Origination
Schedule of Equity Method Investments [Line Items]
Total HEI (loss) income, net	$ 100	$ 0	$ 200	$ 0