Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (50,128)	$ 5,844	$ 51,788	$ 74,589
Other comprehensive loss, net of taxes:
Foreign currency translation adjustments	(27,014)	(812)	(55,709)	(5,315)
Actuarial gain on retirement plan, net of tax effect of $(8), $(6), $(25), and $(21), respectively	20	5	62	31
Total other comprehensive loss, net of taxes	(26,994)	(807)	(55,647)	(5,284)
Comprehensive (loss) income	$ (77,122)	$ 5,037	$ (3,859)	$ 69,305