Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 80,457	$ 74,816
Net cumulative translation adjustment and foreign currency exchange hedge, net of tax of $(413) and $2,441, respectively	(1,932)	(3,859)
Net unrealized (loss) on securities available-for-sale, net of tax of $(155)		(491)
Comprehensive income	$ 78,525	$ 70,466