DERIVATIVES (BALANCE SHEET CLASSIFICATION) (Details) - Foreign Exchange [Member] - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Designated as Hedging Instruments [Member] | Cash Flow [Member]
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	$ (21,608)	$ (26,256)
Designated as Hedging Instruments [Member] | Cash Flow [Member] | Prepaids And Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	69	220
Designated as Hedging Instruments [Member] | Cash Flow [Member] | Other assets [Member]
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	760	393
Designated as Hedging Instruments [Member] | Cash Flow [Member] | Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	(14,937)	(15,603)
Designated as Hedging Instruments [Member] | Cash Flow [Member] | Other long-term liabilities
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	(7,500)	(11,266)
Not Designated as Hedging Instruments [Member] | Fair Value [Member]
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	777	1,470
Not Designated as Hedging Instruments [Member] | Fair Value [Member] | Prepaids And Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	1,000	1,603
Not Designated as Hedging Instruments [Member] | Fair Value [Member] | Other assets [Member]
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	0
Not Designated as Hedging Instruments [Member] | Fair Value [Member] | Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	(223)	$ (133)
Not Designated as Hedging Instruments [Member] | Fair Value [Member] | Other long-term liabilities
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	$ 0