Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Consolidated Statements Of Comprehensive Income [Abstract]
Net income (loss)	$ (10,200)	$ (19,352)	$ 34,461	$ (48,195)
Foreign currency translation gain (loss)	(4,138)	3,478	(8,494)	(1,574)
Gain (loss) on cash flow hedges	57	63	173	(142)
Other	52	47	155	131
Comprehensive income (loss)	(14,229)	(15,764)	26,295	(49,780)
Less: net income (loss) attributable to noncontrolling interests	(105)	(124)	2,889	(389)
Less: comprehensive income (loss) attributable to noncontrolling interests		(2)		(7)
Comprehensive income (loss)	$ (14,124)	$ (15,638)	$ 23,406	$ (49,384)