DERIVATIVES (BALANCE SHEET CLASSIFICATION) (DETAILS) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Derivatives, Fair Value [Line Items]
Notional Amount	$ 167,100	$ 227,800
Designated as Hedging Instruments [Member] | Foreign Exchange [Member] | Cash Flow [Member]
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	(29,473)	(54,039)
Designated as Hedging Instruments [Member] | Foreign Exchange [Member] | Cash Flow [Member] | Prepaids And Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	55	1,178
Designated as Hedging Instruments [Member] | Foreign Exchange [Member] | Cash Flow [Member] | Other assets [Member]
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	594
Designated as Hedging Instruments [Member] | Foreign Exchange [Member] | Cash Flow [Member] | Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	(17,071)	(23,503)
Designated as Hedging Instruments [Member] | Foreign Exchange [Member] | Cash Flow [Member] | Other long-term liabilities
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	(13,051)	(31,714)
Designated as Hedging Instruments [Member] | Interest Rate | Cash Flow [Member]
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	0	(147)
Designated as Hedging Instruments [Member] | Interest Rate | Cash Flow [Member] | Prepaids And Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	0
Designated as Hedging Instruments [Member] | Interest Rate | Cash Flow [Member] | Other assets [Member]
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	0
Designated as Hedging Instruments [Member] | Interest Rate | Cash Flow [Member] | Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	0	(147)
Designated as Hedging Instruments [Member] | Interest Rate | Cash Flow [Member] | Other long-term liabilities
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	0
Not Designated as Hedging Instruments [Member] | Foreign Exchange [Member] | Fair Value [Member]
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	(92)	740
Not Designated as Hedging Instruments [Member] | Foreign Exchange [Member] | Fair Value [Member] | Prepaids And Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	355	1,606
Not Designated as Hedging Instruments [Member] | Foreign Exchange [Member] | Fair Value [Member] | Other assets [Member]
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	0
Not Designated as Hedging Instruments [Member] | Foreign Exchange [Member] | Fair Value [Member] | Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	(447)	$ (866)
Not Designated as Hedging Instruments [Member] | Foreign Exchange [Member] | Fair Value [Member] | Other long-term liabilities
Derivatives, Fair Value [Line Items]
Total net derivative asset (liability)	$ 0