Income Taxes - Components of Comprehensive Provision for Income Taxes Allocation (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Comprehensive provision for income taxes (benefit) allocable to:
Net income (loss)	$ 7,479	$ (2,515)	$ 579
Additional paid-in capital		(100)	(200)
Other comprehensive income (loss):
Currency translation	(400)	900	(100)
Total	10,300	(2,500)	(500)
Defined Benefit Pension Plans
Other comprehensive income (loss):
Defined benefit plans	$ 3,200	(700)	$ (800)
OPEB
Other comprehensive income (loss):
Defined benefit plans		$ (100)