Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Income Taxes (Textual) [Abstract]
Carrying value of low income housing tax credit funds	$ 90,956	$ 41,295
Low income housing tax credit fund commitments	65,285
Proceeds from income tax refunds	805
Tax credits	852	$ 513
Federal
Income Taxes (Textual) [Abstract]
Net operating loss carryforwards	5,518
Tax credits	395
California
Income Taxes (Textual) [Abstract]
Net operating loss carryforwards	11,187
Tax credits	$ 648

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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
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-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32632-109319

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
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-Section 50
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-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32559-109319

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 6
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32621-109319

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant