Home Equity Investments (HEI) - Schedule of Components of HEI Income, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Schedule of Equity Method Investments [Line Items]
Total HEI income, net	$ 711	$ 42,085	$ 35,242
Interest expense	1,100,229	842,556	631,519
Unsecuritized HEI
Schedule of Equity Method Investments [Line Items]
Total HEI income, net	(4,192)	28,739	30,750
HEI held at consolidated HEI securitization entities
Schedule of Equity Method Investments [Line Items]
Total HEI income, net	25,986	57,948	23,177
Net market valuation (losses) recorded on ABS Issued from HEI securitizations
Schedule of Equity Method Investments [Line Items]
Total HEI income, net	(13,899)	(21,686)	(11,020)
Interest expense	11,000	12,000	6,000
Net market valuation (losses) recorded on non-controlling interests in HEI securitizations
Schedule of Equity Method Investments [Line Items]
Total HEI income, net	(7,713)	(23,170)	(7,790)
Other
Schedule of Equity Method Investments [Line Items]
Total HEI income, net	$ 529	$ 254	$ 125