Consolidated Condensed Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 15,686	$ 24,146	$ 73,386	$ 25,697
Other comprehensive (loss) income:
Foreign currency translation adjustments	(7,432)	14,362	(16,056)	11,569
Unrealized (loss) gain on foreign currency derivative securities, net of tax	(474)	997	(1,044)	(1,614)
Unrealized loss on commodity derivative securities, net of tax	(35)		(35)
Other comprehensive (loss) income, net of tax	(7,941)	15,359	(17,135)	9,955
Comprehensive income	$ 7,745	$ 39,505	$ 56,251	$ 35,652