Pension Plans - Components of Net Periodic Benefit (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Retirement Benefits [Abstract]
Service cost	$ 0	$ 0	$ 0	$ 0
Interest cost	297	282	594	564
Expected return on plan assets	(601)	(586)	(1,202)	(1,172)
Recognized net actuarial loss	117	149	234	298
Net periodic pension benefit	$ (187)	$ (155)	$ (374)	$ (310)