DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Effect of Derivative Instruments on the Consolidated Statements of Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Derivative instruments, gain or (loss)
Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivative	$ (9,172)	$ 8,361
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income on Derivative	(9,487)	8,063
Interest expense	33,244	35,489	$ 32,626
Miscellaneous, net	(4,614)	1,556	$ 5,550
Amount of (Loss) Gain Recognized in Income on Derivatives	337	(141)
Changes in cross currency swap: interest component
Derivative instruments, gain or (loss)
Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivative	1,789	5,103
Changes in cross currency swap: interest component | Derivatives in Cash Flow Hedging Relationships
Derivative instruments, gain or (loss)
Interest expense	33,244
Changes in cross currency swap: interest component | Interest expense
Derivative instruments, gain or (loss)
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income on Derivative	1,474	4,805
Changes in cross currency swap: foreign exchange component
Derivative instruments, gain or (loss)
Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivative	(10,961)	3,258
Changes in cross currency swap: foreign exchange component | Derivatives in Cash Flow Hedging Relationships
Derivative instruments, gain or (loss)
Miscellaneous, net	(4,614)
Changes in cross currency swap: foreign exchange component | Miscellaneous, net
Derivative instruments, gain or (loss)
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income on Derivative	(10,961)	3,258
Foreign Exchange Contracts | Miscellaneous, net
Derivative instruments, gain or (loss)
Amount of (Loss) Gain Recognized in Income on Derivatives	$ 337	$ (141)