Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 491,983	$ 451,959	$ 406,815
Other comprehensive income (loss), net of taxes:
Foreign currency translation adjustment, net of tax of $0, $0 and $0	(5,877)	11,439	43,535
Other, net of tax of $(381), $865 and $(200)	1,185	(2,618)	695
Other comprehensive income (loss), net of taxes	(4,692)	8,821	44,230
Comprehensive income	487,291	460,780	451,045
Less: Comprehensive income attributable to non-controlling interests	6,027	6,363	4,771
Total comprehensive income attributable to common stock	$ 481,264	$ 454,417	$ 446,274