Retirement Plans - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Employee service period under ESOP		1 year
Deferred compensation obligations		$ 5,945	$ 6,043
Cash values of the insurance policies purchased to fund deferred compensation obligations		117,857	118,870	$ 117,823
Unfunded status of the supplemental retirement plans		(2,399)	1,294
AOCI, defined benefit plan, after tax		$ (1,690)	912
Scenario, Forecast
Defined Benefit Plan Disclosure [Line Items]
Amortization of actuarial losses	$ 26
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		$ 117,857	118,870
Unfunded status of the supplemental retirement plans		2,399	(1,294)
AOCI, defined benefit plan, after tax		1,690	(912)
Deferred tax asset		$ (709)	$ 382