DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES (Balance Sheet Location) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Derivatives, Fair Value [Line Items]
Fair value, derivative asset	$ 14,778	$ 24,206
Fair value, derivative liability	(2,782)	(2,089)
Other current assets
Derivatives, Fair Value [Line Items]
Fair value, derivative asset	497	369
Other assets
Derivatives, Fair Value [Line Items]
Fair value, derivative asset	14,281	23,837
Other current liabilities
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	(715)	(2,021)
Other non-current liabilities
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	(2,067)	(68)
Designated as Hedging Instrument | Cash Flow Hedging | Foreign currency exchange contracts | Other current assets
Derivatives, Fair Value [Line Items]
Fair value, derivative asset	150	0
Designated as Hedging Instrument | Cash Flow Hedging | Foreign currency exchange contracts | Other assets
Derivatives, Fair Value [Line Items]
Fair value, derivative asset	42	0
Designated as Hedging Instrument | Cash Flow Hedging | Foreign currency exchange contracts | Other current liabilities
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	(642)	(1,569)
Designated as Hedging Instrument | Cash Flow Hedging | Foreign currency option contracts | Other current assets
Derivatives, Fair Value [Line Items]
Fair value, derivative asset	296	217
Designated as Hedging Instrument | Cash Flow Hedging | Foreign currency option contracts | Other assets
Derivatives, Fair Value [Line Items]
Fair value, derivative asset	0	102
Designated as Hedging Instrument | Cash Flow Hedging | Foreign currency option contracts | Other current liabilities
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	(73)	(106)
Designated as Hedging Instrument | Cash Flow Hedging | Foreign currency option contracts | Other non-current liabilities
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	0	(68)
Designated as Hedging Instrument | Cash Flow Hedging | Interest rate swaps | Other assets
Derivatives, Fair Value [Line Items]
Fair value, derivative asset	14,239	23,735
Designated as Hedging Instrument | Cash Flow Hedging | Interest rate swaps | Other non-current liabilities
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	(2,052)	0
Not Designated as Hedging Instrument | Foreign currency exchange contracts | Other current assets
Derivatives, Fair Value [Line Items]
Fair value, derivative asset	51	152
Not Designated as Hedging Instrument | Foreign currency exchange contracts | Other current liabilities
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	0	(24)
Not Designated as Hedging Instrument | Carbon options | Other current liabilities
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	0	(322)
Not Designated as Hedging Instrument | Carbon options | Other non-current liabilities
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	$ (15)	$ 0