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Retirement Plans - Additional Information (Detail) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items] |  |  |
Employee service period under ESOP | 1 year |  |
Deferred compensation obligations | $ 5,738 | $ 5,945 |
Cash values of the insurance policies purchased to fund deferred compensation obligations | 133,742 | 117,857 | $ 118,870
Funded status of the supplemental retirement plans | (13,901) | (2,399) |
AOCI, defined benefit plan, after tax | (9,792) | (1,690) |
Amortization of actuarial losses | $ 455 |  |
401(k) Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Minimum age for employees | 21 years |  |
Minimum period for employees to participate | 90 days |  |
Discretionary matching contribution equal to percentage of participant's contribution | 50.00% |  |
Discretionary matching contribution maximum percentage of eligible compensation | 4.00% |  |
Supplemental Retirement Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Cash values of the insurance policies purchased to fund deferred compensation obligations | $ 133,742 | 117,857 |
Funded status of the supplemental retirement plans | 13,901 | 2,399 |
AOCI, defined benefit plan, after tax | 9,792 | 1,690 |
Deferred tax liability | $ (4,109) | $ (709) |

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