Accumulated Other Comprehensive Income ("AOCI") - Summary of Total Changes in AOCI by Component, Net of Tax (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ 316,117
Other comprehensive income before reclassifications:
Gain (loss) on foreign currency translation adjustment	2,101	$ (4,829)
Amounts reclassified from AOCI:
Amortization of defined benefit pension actuarial gain	89	114
Other comprehensive gain (loss), net of tax	2,190	(4,715)
Ending Balance	328,910
Unrecognized Pension Benefit Cost [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(5,496)	(6,704)
Other comprehensive income before reclassifications:
Gain (loss) on foreign currency translation adjustment	0	0
Amounts reclassified from AOCI:
Amortization of defined benefit pension actuarial gain	89	114
Other comprehensive gain (loss), net of tax	89	114
Ending Balance	(5,407)	(6,590)
Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(56,223)	(47,847)
Other comprehensive income before reclassifications:
Gain (loss) on foreign currency translation adjustment	2,101	(4,829)
Amounts reclassified from AOCI:
Amortization of defined benefit pension actuarial gain	0	0
Other comprehensive gain (loss), net of tax	2,101	(4,829)
Ending Balance	(54,122)	(52,676)
Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(61,719)	(54,551)
Amounts reclassified from AOCI:
Ending Balance	$ (59,529)	$ (59,266)