DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES (Balance Sheet Location) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Derivatives, Fair Value [Line Items]
Fair value, derivative asset	$ 1,934	$ 3,788
Fair value, derivative liability	(89,615)	(11,904)
Other current assets
Derivatives, Fair Value [Line Items]
Fair value, derivative asset	585	575
Other assets
Derivatives, Fair Value [Line Items]
Fair value, derivative asset	1,349	3,213
Other current liabilities
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	(1,273)	(806)
Other non-current liabilities
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	(88,342)	(11,098)
Derivatives designated as cash flow hedges: | Derivatives designated as cash flow hedges: | Foreign currency exchange contracts | Other current assets
Derivatives, Fair Value [Line Items]
Fair value, derivative asset	310	424
Derivatives designated as cash flow hedges: | Derivatives designated as cash flow hedges: | Foreign currency exchange contracts | Other assets
Derivatives, Fair Value [Line Items]
Fair value, derivative asset	1,177	390
Derivatives designated as cash flow hedges: | Derivatives designated as cash flow hedges: | Foreign currency exchange contracts | Other current liabilities
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	(968)	(172)
Derivatives designated as cash flow hedges: | Derivatives designated as cash flow hedges: | Foreign currency exchange contracts | Other non-current liabilities
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	(17)	0
Derivatives designated as cash flow hedges: | Derivatives designated as cash flow hedges: | Foreign currency option contracts | Other current assets
Derivatives, Fair Value [Line Items]
Fair value, derivative asset	275	151
Derivatives designated as cash flow hedges: | Derivatives designated as cash flow hedges: | Foreign currency option contracts | Other assets
Derivatives, Fair Value [Line Items]
Fair value, derivative asset	172	209
Derivatives designated as cash flow hedges: | Derivatives designated as cash flow hedges: | Foreign currency option contracts | Other current liabilities
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	(305)	(27)
Derivatives designated as cash flow hedges: | Derivatives designated as cash flow hedges: | Foreign currency option contracts | Other non-current liabilities
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	(112)	(30)
Derivatives designated as cash flow hedges: | Derivatives designated as cash flow hedges: | Interest rate swaps | Other assets
Derivatives, Fair Value [Line Items]
Fair value, derivative asset	0	2,614
Derivatives designated as cash flow hedges: | Derivatives designated as cash flow hedges: | Interest rate swaps | Other non-current liabilities
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	(65,381)	(11,068)
Derivatives designated as cash flow hedges: | Derivatives designated as cash flow hedges: | Forward-starting interest rate swaps | Other non-current liabilities
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	(22,832)	0
Derivative not designated as a hedging instrument: | Carbon options | Other current liabilities
Derivatives, Fair Value [Line Items]
Fair value, derivative liability	$ 0	$ (607)