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Financial Instruments With Off-Balance Sheet Risk - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
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Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2022
Financial Instruments With Off Balance Sheet Risk [Line Items] |  |  |  |  |
Amount of allowance for credit losses for off balance sheet instruments | $ 904 |  | $ 904 |  | $ 54
(Credit to) Provision for credit losses | (395) |  | (192) |  |
Unfunded Loan Commitment [Member] |  |  |  |  |
Financial Instruments With Off Balance Sheet Risk [Line Items] |  |  |  |  |
(Credit to) Provision for credit losses | 150 | $ 0 | 60 | $ 0 |
Other Liabilities [Member] |  |  |  |  |
Financial Instruments With Off Balance Sheet Risk [Line Items] |  |  |  |  |
Amount of allowance for credit losses for off balance sheet instruments | $ 904 |  | $ 904 |  | $ 54

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- Definition Amount of expected credit loss for credit exposure on off-balance-sheet commitment, including but not limited to, loan commitment, standby letter of credit, financial guarantee not accounted for as insurance. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482454/460-10-45-1 + Details
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- Definition Amount of credit loss expense (reversal of expense) for financing receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(11)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1 + Details
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