CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net (loss)	$ (63,040)	$ (61,373)	$ (90,433)
Other comprehensive (loss) income, net of tax
Unrealized gain on available-for-sale securities	640	46	249
Foreign currency translation adjustments	(4,680)	10,234	(155)
Total other comprehensive (loss) income, net of tax	(4,040)	10,280	94
Comprehensive (loss)	$ (67,080)	$ (51,093)	$ (90,339)