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Loans and Allowance for Loan Losses - Summary of Impaired Financing Receivables (Detail) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Financing Receivable Impaired [Line Items] |  |
Impaired financing receivable, with no specific allowance recorded, recorded investment | $ 73,643 | $ 9,733
Impaired financing receivable, with no specific allowance recorded, unpaid principal balance | 73,660 | 10,388
Impaired financing receivable, related allowance | 11,606 | 879
Commercial and Industrial [Member] |  |
Financing Receivable Impaired [Line Items] |  |
Impaired financing receivable, with no specific allowance recorded, recorded investment | 1,268 |
Impaired financing receivable, with no specific allowance recorded, unpaid principal balance | 1,289 |
Impaired financing receivable, related allowance | 11,605 | 836
Impaired financing receivable, with an allowance recorded, recorded investment | 66,386 | 4,612
Impaired financing receivable, with an allowance recorded, unpaid principal balance | 66,386 | 4,612
Real Estate [Member] | Mortgage, Residential [Member] |  |
Financing Receivable Impaired [Line Items] |  |
Impaired financing receivable, with no specific allowance recorded, recorded investment | 834 |
Impaired financing receivable, with no specific allowance recorded, unpaid principal balance | 834 |
Impaired financing receivable, related allowance |  | 42
Impaired financing receivable, with an allowance recorded, recorded investment | 0 | 1,400
Impaired financing receivable, with an allowance recorded, unpaid principal balance | 0 | 1,400
Real Estate [Member] | Commercial Construction [Member] |  |
Financing Receivable Impaired [Line Items] |  |
Impaired financing receivable, with no specific allowance recorded, recorded investment | 521 | 527
Impaired financing receivable, with no specific allowance recorded, unpaid principal balance | 521 | 527
Real Estate [Member] | Mortgage, Commercial [Member] |  |
Financing Receivable Impaired [Line Items] |  |
Impaired financing receivable, with no specific allowance recorded, recorded investment | 4,508 |
Impaired financing receivable, with no specific allowance recorded, unpaid principal balance | 4,504 |
Impaired financing receivable, related allowance | 1 | 1
Impaired financing receivable, with an allowance recorded, recorded investment | 126 | 3,194
Impaired financing receivable, with an allowance recorded, unpaid principal balance | $ 126 | $ 3,849

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- Definition Amount of allowance for credit losses related to recorded investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-15 + Details
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- Definition Amount of investment in impaired financing receivables for which there is no related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-14A + Details
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- Definition Amount of unpaid principal balance of impaired financing receivables for which there is no related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-15 + Details
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