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
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (4,622)	$ 51,644	$ 138,923	$ 103,555
Other comprehensive income (loss), before tax and net of reclassification adjustments:
Foreign currency translation adjustment	8,483	(8,500)	6,507	(9,303)
Unrealized (loss) gain on securities available-for-sale	(163)	(419)	(317)	1,494
Unrealized (loss) gain on derivative instruments	(9,530)	1,627	(10,128)	1,359
Other comprehensive (loss) income, before tax	(1,210)	(7,292)	(3,938)	(6,450)
Tax (benefit) expense related to items of other comprehensive income	(2,335)	414	(2,268)	355
Other comprehensive income (loss), net of tax	1,125	(7,706)	(1,670)	(6,805)
Comprehensive (loss) income	$ (3,497)	$ 43,938	$ 137,253	$ 96,750