Real Estate - Schedule of Changes in Accumulated Depreciation and Amortization Related to Real Estate Held for Investment (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Real Estate [Abstract]
Balance at beginning of year	$ 104,163	$ 93,785
Depreciation and amortization for year	10,363	10,378
Balance at end of year	$ 114,526	$ 104,163

Amount of accumulated depreciation pertaining to real estate investments for entities with a substantial portion of business acquiring and holding investment real estate.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 970
-SubTopic 360
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-28(Column F))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478979/970-360-S99-1

Name:	us-gaap_RealEstateAccumulatedDepreciation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant