CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (363,316)	$ 114,801	$ (241,484)	$ (43,032)
Other comprehensive income (loss):
Foreign currency translation adjustments	(12,303)	20,730	(58,523)	(9,260)
Unrealized gain (loss) on cash flow hedging activities, net of income tax provision (benefit) of $168, $85, $331 and ($494), respectively	1,171	597	2,315	(3,456)
Unrealized loss on fair value hedging activities, net of income tax benefit of ($125), $—, ($125) and $—, respectively	(375)	0	(375)	0
Other comprehensive income (loss)	(11,507)	21,327	(56,583)	(12,716)
Total comprehensive income (loss)	$ (374,823)	$ 136,128	$ (298,067)	$ (55,748)