Income Taxes (Components of Provision for Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current tax provision:
Federal	$ 57,526	$ 24,221	$ 21,498
State	109,641	65,821	45,228
Foreign	357,189	277,846	223,328
Total current	524,356	367,888	290,054
Deferred tax provision:
Federal	188,937	(57,765)	(28,003)
State	(2,700)	164,685	(54,507)
Foreign	13,282	(36,854)	(12,229)
Total deferred	199,519	70,066	(94,739)
Provision for income taxes	$ 723,875	$ 437,954	$ 195,315