BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Recently Adopted Accounting Pronouncements (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reduction of deferred income taxes	$ (64,121)	$ (259,203)
Increase to long- term other assets	23,289	29,927
Advertising expenses	89,200	74,100	$ 69,500
Increase to contract with customer, asset, net			20,000
Accounting Standards Update 2015-17
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification of current deferred income taxes		12,900
Reduction of deferred income taxes		12,800
Increase to long- term other assets		$ 100
Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred revenue			35,000
Advertising expenses	23,000
Minimum | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reduction to retained earnings, net of tax			20,000
Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred revenue			40,000
Advertising expenses	$ 25,000
Maximum | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reduction to retained earnings, net of tax			$ 25,000