Condensed Consolidated Statements of Comprehensive Income (Loss) - 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 (loss) income	$ (7,180)	$ 11,146	$ 7,637	$ (222,154)
Other comprehensive (loss) income, net of tax:
Foreign currency translation (loss) gain	(9,068)	16,384	(16,336)	(9,706)
Change in unrecognized (losses) gains on derivative instruments:
Change in fair value of derivatives	(7,735)	5,818	290	(32,934)
Tax benefit (provision)	851	(1,135)	(189)	7,618
Change in unrecognized (losses) gains on derivative instruments, net of tax	(6,884)	4,683	101	(25,316)
Defined benefit pension plan:
Amortization of actuarial losses on pension obligations	96	72	290	216
Tax provision		(15)		(45)
Pension changes, net of tax	96	57	290	171
Other comprehensive (loss) income, net of tax	(15,856)	21,124	(15,945)	(34,851)
Comprehensive (loss) income	$ (23,036)	$ 32,270	$ (8,308)	$ (257,005)