Home Equity Investments (HEI) - Schedule of Activity of Home Equity Investments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Fair value of HEI purchased and originated | Unsecuritized HEI
Schedule of Equity Method Investments [Line Items]
Net Market Valuation Gains (Losses)	$ 12,967	$ 2,043
Fair value of HEI purchased and originated | HEI held at consolidated HEI securitization entities
Schedule of Equity Method Investments [Line Items]
Net Market Valuation Gains (Losses)	0	0
Fair value of HEI transferred | Unsecuritized HEI
Schedule of Equity Method Investments [Line Items]
Net Market Valuation Gains (Losses)	148,963	0
Fair value of HEI transferred | HEI held at consolidated HEI securitization entities
Schedule of Equity Method Investments [Line Items]
Net Market Valuation Gains (Losses)	(148,963)	0
Fair value of HEI sold to third party | Unsecuritized HEI
Schedule of Equity Method Investments [Line Items]
Net Market Valuation Gains (Losses)	262,447	0
Fair value of HEI sold to third party | HEI held at consolidated HEI securitization entities
Schedule of Equity Method Investments [Line Items]
Net Market Valuation Gains (Losses)	0	0
Net market valuation (losses) gains recorded | Unsecuritized HEI
Schedule of Equity Method Investments [Line Items]
Net Market Valuation Gains (Losses)	(4,192)	28,739
Net market valuation (losses) gains recorded | HEI held at consolidated HEI securitization entities
Schedule of Equity Method Investments [Line Items]
Net Market Valuation Gains (Losses)	$ 25,986	$ 57,948