Estimated Funded Status (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	$ 7,278	$ 6,946
Service cost	35	31	$ 26
Interest cost	28	37	54
Actuarial (gain) loss	547	137
Benefits paid	(455)	(322)
Foreign exchange impact	(383)	449
Benefit obligation at end of year	7,050	7,278	6,946
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	1,042	910
Return on plan assets	16	31
Employer contributions	74	73
Benefits paid	(157)	(41)
Foreign exchange impact	(6)	69
Fair value of plan assets at end of year	969	1,042	$ 910
Plan assets less than benefit obligation - Net amount recognized	$ (6,081)	$ (6,236)