INCOME TAXES - SCHEDULE OF COMPONENTS OF INCOME TAX EXEPENSE (BENEFIT) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current income tax provision (benefit):
Federal	$ 67,505	$ (45,842)	$ 115,250
State	7,785	(14,787)	13,946
Foreign	14,012	19,132	14,402
Current income tax provision (benefit)	89,302	(41,497)	143,598
Deferred income tax (benefit) provision:
Federal	(50,254)	74,255	(821)
State	(3,727)	3,090	(2,117)
Foreign	(5,805)	(476)	(6,158)
Deferred income tax (benefit) provision	(59,786)	76,869	(9,096)
Income tax provision	29,516	35,372	134,502
Excess tax benefits from stock-based awards	$ 56,418	$ 44,957	$ 32,891