CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (7,262)	$ 36,282	$ (38,441)	$ 40,839
Other comprehensive income:
Foreign currency translation adjustment	(239)	96	(70)	317
Comprehensive (loss) income	$ (7,501)	$ 36,378	$ (38,511)	$ 41,156