DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION (Reclassification to Balance Sheet) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Accounts payable	$ 817,927	$ 733,027
Accrued expenses and other current liabilities	403,146	410,152
Revenue contract liability	$ 28,873	36,607
As Presented in 2017 Annual Report on Form 10-K
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Accounts payable		762,444
Accrued expenses and other current liabilities		417,342
Revenue contract liability		0
Accounting Standards Update 2014-09 | Adjustment Resulting from Adoption of FASB Guidance
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Accounts payable		(29,417)
Accrued expenses and other current liabilities		(7,190)
Revenue contract liability		$ 36,607