Retirement Plans - Schedule of Net Benefit Costs (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Compensation And Retirement Disclosure [Abstract]
Interest cost	$ 218	$ 206	$ 436	$ 412
Net amortization	83	97	166	194
Net periodic pension cost	$ 301	$ 303	$ 602	$ 606