Retirement Plans - Schedule of Changes in Benefit Obligations and Plan Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Service cost	$ 0	$ 0	$ 0
Interest cost	35	23	23
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Funded Status at End of Year	708	986
Unrecognized transition obligation	(386)	(461)
Unrecognized net gain	728	584
Amounts recognized in retained earnings	1,050	1,109
Change in Benefit Obligation [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	986	1,372
Service cost	0	0
Interest cost	22	23
Amendments	0	0
Actuarial gain	(212)	(302)
Net benefits paid	(88)	(107)
Benefit obligation at end of year	708	986	1,372
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Net benefits paid	(88)	(107)
Change In Plan Assets [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Net benefits paid	(88)	(107)
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	0	0
Actual return on plan assets	0	0
Employer contributions	88	107
Net benefits paid	(88)	(107)
Fair value of plan assets at end of year	$ 0	$ 0	$ 0