DERIVATIVES AND HEDGING ACTIVITIES (Effective of Contracts on Statement of Operations) (Details) - Realized (Gains)/Losses Reclassified from Accumulated Other Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Derivatives designated as hedging instruments | Operating income (expenses)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gain (loss) on derivatives	$ 455	$ (1,419)	$ 417	$ (884)
Derivatives designated as hedging instruments | Interest and other, net
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gain (loss) on derivatives	0	0	0	0
Derivatives not designated as hedging instruments | Operating income (expenses)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gain (loss) on derivatives	0	0	0	0
Derivatives not designated as hedging instruments | Interest and other, net
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gain (loss) on derivatives	$ 693	$ (1,814)	$ 2,256	$ (2,704)