Condensed Consolidated Statements of Comprehensive 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 loss	$ (17,493)	$ (13,528)	$ (51,784)	$ (213,255)
Other comprehensive income (loss) before tax:
Foreign currency translation adjustment	657	3,583	874	(6,158)
Foreign currency hedge	0	(282)	0	(17)
Other comprehensive income (loss), before tax	657	3,301	874	(6,175)
Tax (provision) benefit attributable to other comprehensive income (loss)	(257)	319	(155)	134
Other comprehensive income (loss), net of tax	400	3,620	719	(6,041)
Total comprehensive loss	$ (17,093)	$ (9,908)	$ (51,065)	$ (219,296)