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v3.23.1

Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2023 | Jan. 01, 2023 | Dec. 31, 2022
New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |  |
Allowance for credit losses | $ 34,196 |  | $ 28,511
Allowance for credit losses | 4,300 |  |
Unfunded loan commitments | 3,400 | $ 3,400 |
Increase in deferred tax assets | 1,600 |  |
Discount from loans to allowance for credit losses |  | 1,700 |
Decrease to Retained Earnings | 161,110 |  | 156,492
Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |
New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |  |
Decrease to Retained Earnings | $ (6,100) | 6,100 |
Consumer Loan [Member] |  |  |
New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |  |
Period past due for accrued interest receivable | 90 days |  |
ASU 2016-13 [Member] |  |  |
New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |  |
Change in Accounting Principle, Accounting Standards Update, Adopted [true false] | true |  |
Change in Accounting Principle, Accounting Standards Update, Adoption Date | Jan. 01, 2023 |  |
Unfunded loan commitments |  | 3,386 |
ASU 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |
New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |  |
Allowance for credit losses |  |  | $ 897
ASU 2016-13 [Member] | PCD Loans [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |
New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |  |
Allowance for credit losses |  | $ 1,668 |
ASU 2017-04 [Member] |  |  |
New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |  |
Change in Accounting Principle, Accounting Standards Update, Adopted [true false] | true |  |
Change in Accounting Principle, Accounting Standards Update, Adoption Date | Jan. 01, 2023 |  |
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false] | true |  |
ASU 2022-02 [Member] |  |  |
New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |  |
Change in Accounting Principle, Accounting Standards Update, Adopted [true false] | true |  |
Change in Accounting Principle, Accounting Standards Update, Adoption Date | Jan. 01, 2023 |  |
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false] | true |  |

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