CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ (14,142)	$ 1,681	$ (33,840)	$ (4,369)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	2,048	(2,317)	(22,931)	(690)
Total comprehensive loss	$ (12,094)	$ (636)	$ (56,771)	$ (5,059)