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Residential Consumer Loans - Schedule of Activity of Residential Consumer Loans Held-for-Investment at Consolidated Entities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Principal value of loans transferred from HFS to HFI			$ 5,773,627	$ 4,553,378
Held-for-investment at fair value | Securitized Jumbo Loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Net market valuation gains (losses) recorded	$ 102,295	$ 256,034	236,432	152,635
Held-for-investment at fair value | Securitized Jumbo Loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Principal value of loans transferred from HFS to HFI	$ 1,878,024	$ 1,528,163	$ 5,551,389	$ 4,140,150

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