Real Estate Owned, Net - Revenue and Expenses From Real Estate Owned (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Real Estate [Abstract]
Rental income	$ 16,207	$ 0	$ 30,541	$ 0
Other operating income	22,605	0	45,304	0
Revenue from real estate owned	38,812	0	75,845	0
Operating expense	31,089	778	61,177	778
Depreciation and amortization expense	16,707	185	32,921	185
Total expenses from real estate owned	47,796	963	94,098	963
Net loss from real estate owned	$ (8,984)	$ (963)	$ (18,253)	$ (963)