Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (6,654)	$ 41,254	$ 24,437	$ 132,623
Other comprehensive income (loss):
Foreign currency translation adjustments	24,632	(20,157)	(13,319)	(23,975)
Unrealized gain (loss) on cash flow hedges and investments, net of tax	267	(1,037)	(3,210)	(8,207)
Total other comprehensive income (loss)	24,899	(21,194)	(16,529)	(32,182)
Comprehensive income	$ 18,245	$ 20,060	$ 7,908	$ 100,441