Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Consolidated Statements of Comprehensive Income
Net income	$ 1,752,302	$ 1,391,042	$ 1,324,487
Other comprehensive income (loss):
Foreign currency translation adjustments	(7,045)	4,890	0
Total other comprehensive (loss) income	(7,045)	4,890	0
Comprehensive income	$ 1,745,257	$ 1,395,932	$ 1,324,487