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Allowance for Credit Losses - Summary of Portfolio of Nonaccrual Loans (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing receivable, nonaccrual | $ 0 | $ 1,918
Commercial and PPP Loans [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing receivable, nonaccrual |  | 35
Commercial Real Estate Loans [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing receivable, nonaccrual |  | 231
Residential Real Estate Loans [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing receivable, nonaccrual |  | 1,652
Consumer Loans [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing receivable, nonaccrual |  | $ 0

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- Definition Amortized cost of financing receivable on nonaccrual status. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 16 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (3) -Publisher SEC Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (2) -Publisher SEC Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-7 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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