Schedule of Reconciliation of Defined Benefit Pension Plan (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Compensation And Retirement Disclosure [Abstract]
Fair value of plan assets at beginning of year	$ 131,685	$ 120,287
Actual return (loss) on plan assets	2,771	18,169
Benefits paid	(6,389)	(6,260)
Administrative expenses	(707)	(511)
Fair value of plan assets at end of year	127,360	131,685	$ 120,287
Benefit obligation at beginning of year	123,237	117,556
Service cost	546	615	725
Interest cost	2,493	3,357	4,237
Benefits paid	(6,389)	(6,260)
Actuarial (gain) loss	(3,853)	7,969
Benefit obligation at end of year	116,034	123,237	$ 117,556
Other non-current assets	11,327	8,449
Total amounts recognized at end of year	$ 11,327	$ 8,449