Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Net income (loss)	$ 155,037	$ 30,622	$ 282,652	$ (55,525)
Other comprehensive income:
Foreign currency translation adjustments	3,242	(6,570)	552	(6,245)
Unrealized gain on marketable securities and restricted marketable securities, net of tax of $(236), $(376), $(822), and $184	6,148	13,258	20,826	21,816
Unrealized (loss) gain on derivative instruments, net of tax of $55, $98, $(31), and $429	(1,827)	714	(1,741)	(623)
Other comprehensive income	7,563	7,402	19,637	14,948
Comprehensive income (loss)	162,600	38,024	302,289	(40,577)
Unrealized gain on marketable securities and restricted marketable securities, tax	(236)	(376)	(822)	184
Unrealized (loss) gain on derivative instruments, tax	$ 55	$ 98	$ (31)	$ 429