DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Fair Value of Derivative Instruments in the Consolidated Balance Sheets) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Fair Value of Derivative Instruments
Derivative assets	$ 322	$ 2,758
Derivative liabilities	8,455	401
Derivative Contracts Not Designated as Hedging Instruments
Fair Value of Derivative Instruments
Derivative assets	322	206
Derivative liabilities	146	401
Derivative Contracts Not Designated as Hedging Instruments | Foreign Exchange Contracts | Prepaid and other
Fair Value of Derivative Instruments
Derivative assets	322	206
Derivative Contracts Not Designated as Hedging Instruments | Foreign Exchange Contracts | Accounts payable and accrued liabilities
Fair Value of Derivative Instruments
Derivative liabilities	146	401
Derivative Contracts Not Designated as Hedging Instruments | Cross Currency Interest Rate Contract | Prepaid and other
Fair Value of Derivative Instruments
Derivative assets	0	0
Derivative Contracts Not Designated as Hedging Instruments | Cross Currency Interest Rate Contract | Accounts payable and accrued liabilities
Fair Value of Derivative Instruments
Derivative liabilities	0	0
Derivative Contracts Designated as Hedging Instruments
Fair Value of Derivative Instruments
Derivative assets	0	2,552
Derivative liabilities	8,309	0
Derivative Contracts Designated as Hedging Instruments | Foreign Exchange Contracts | Prepaid and other
Fair Value of Derivative Instruments
Derivative assets	0	0
Derivative Contracts Designated as Hedging Instruments | Foreign Exchange Contracts | Accounts payable and accrued liabilities
Fair Value of Derivative Instruments
Derivative liabilities	0	0
Derivative Contracts Designated as Hedging Instruments | Cross Currency Interest Rate Contract | Prepaid and other
Fair Value of Derivative Instruments
Derivative assets	0	2,552
Derivative Contracts Designated as Hedging Instruments | Cross Currency Interest Rate Contract | Accounts payable and accrued liabilities
Fair Value of Derivative Instruments
Derivative liabilities	$ 8,309	$ 0