Real Estate Owned, Net - Additional Information (Detail)	3 Months Ended				6 Months Ended	12 Months Ended
	Jun. 30, 2025 USD ($) real_estate_owned_asset	Mar. 31, 2025 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Jun. 30, 2025 USD ($) real_estate_owned_asset	Dec. 31, 2024 USD ($) real_estate_owned_asset
Real Estate [Line Items]
Number of REO assets classified as held for sale investment | real_estate_owned_asset	8				8	7
Number of real estate owned assets | real_estate_owned_asset					1
Total acquisition price					$ 45,000,000.0
Building and building improvements	$ 19,700,000				19,700,000
Land and land improvements	15,000,000				15,000,000
Acquired intangible assets	14,500,000				14,500,000
Other components	(4,200,000)				(4,200,000)
Amount charged off	45,057,000	$ 41,824,000	$ 12,537,000	$ 61,013,000	86,881,000	$ 384,603,000
Real estate owned, net	615,217,000				615,217,000	$ 588,185,000
7 Real Estate Owned Assets
Real Estate [Line Items]
Real estate owned, net	$ 86,900,000				86,900,000
Commercial Real Estate
Real Estate [Line Items]
Amount charged off					$ 41,800,000