DERIVATIVES (BALANCE SHEET CLASSIFICATION) (Details) - Foreign Exchange [Member] - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Designated as Hedging Instruments [Member] | Cash Flow [Member]
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	$ (23,627)	$ (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)	424	220
Designated as Hedging Instruments [Member] | Cash Flow [Member] | Other assets [Member]
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)		393
Designated as Hedging Instruments [Member] | Cash Flow [Member] | Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	(15,968)	(15,603)
Designated as Hedging Instruments [Member] | Cash Flow [Member] | Other long-term liabilities
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	(8,083)	(11,266)
Not Designated as Hedging Instruments [Member] | Fair Value [Member]
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	1,332	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)	1,617	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)	(285)	$ (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