INCOME TAXES - Components of the Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Tax provision:
Federal	$ 152,627	$ 189,708	$ 222,685
State	38,626	29,320	31,786
Foreign	39,830	32,638	29,086
Current income tax expense (benefit), total	231,083	251,666	283,557
Deferred provision (benefit):
Federal	(11,969)	(21,389)	13,936
State	(3,176)	(3,048)	1,986
Foreign	(170)	(3,659)	(913)
Deferred provision (benefit), total	(15,315)	(28,096)	15,009
Total provision	$ 215,768	$ 223,570	$ 298,566