Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Income Taxes (Textual) [Abstract]
Carrying value of low income housing tax credit funds	$ 109,100	$ 96,900
Low income housing tax credit fund commitments	57,000
Tax credits	852	$ 852
Federal
Income Taxes (Textual) [Abstract]
Tax credits	300
California
Income Taxes (Textual) [Abstract]
Net operating loss carryforwards	13,000
Tax credits	$ 600

Amount, before allocation of a valuation allowances, of deferred tax assets attributable to deductible tax credit carryforwards including, but not limited to, research, foreign, general business, alternative minimum tax, and other deductible tax credit carryforwards.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-6

Name:	us-gaap_DeferredTaxAssetsTaxCreditCarryforwards
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant