Residential Investor Loans - Schedule of Activity of Unsecuritized Investor Loans (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($) loan	Jun. 30, 2024 USD ($)
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Principal balance of loans originated			$ 5,210,370	$ 2,901,465
Principal balance of loans sold to third parties			$ 537	669
Number of loans transferred | loan			1
Residential Investor Term, Unsecuritized
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Principal balance of loans originated	$ 228,545	$ 217,538	$ 416,763	334,628
Principal balance of loans acquired (1)	36,237	648	43,037	648
Principal balance of loans sold to third parties	250,795	252,424	433,210	258,456
Transfer of loans between portfolios	0	0	0	0
Residential Investor Bridge, Unsecuritized
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Principal balance of loans originated	141,756	234,115	407,900	428,144
Principal balance of loans acquired (1)	25,233	0	25,233	15,677
Principal balance of loans sold to third parties	226,081	156,294	382,574	209,515
Transfer of loans between portfolios	$ 75,994	$ (89,202)	$ 25,375	$ (187,933)