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Residential Consumer Loans - Schedule of Activity of Residential Consumer Loans Held-for-Sale (Details) - Residential Consumer Loans - 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 balance of loans acquired	$ 3,845,429	$ 1,999,621	$ 9,158,820	$ 4,873,608
Principal balance of loans sold	861,850	39,497	2,123,601	246,641
Principal balance of loans transferred from HFS to HFI	$ 1,878,024	$ 1,528,163	$ 5,551,389	$ 4,140,150

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