DERIVATIVES (Fair Value of Derivative Instruments) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Other Current Assets
Fair values of derivative instruments
Fair value of derivative assets	$ 5,544	$ 2,776
Other Current Liabilities
Fair values of derivative instruments
Fair value of derivative liabilities	804	4,351
Other Liabilities [Member]
Fair values of derivative instruments
Fair value of derivative liabilities	10,871	5,085
Designated as Hedging Instrument | Foreign exchange contracts | Other Current Assets
Fair values of derivative instruments
Fair value of derivative assets	940	519
Designated as Hedging Instrument | Foreign exchange contracts | Other Current Liabilities
Fair values of derivative instruments
Fair value of derivative liabilities	399	604
Designated as Hedging Instrument | Foreign exchange contracts | Other Liabilities [Member]
Fair values of derivative instruments
Fair value of derivative liabilities	0	0
Designated as Hedging Instrument | Interest Rate Swap [Member] | Other Current Assets
Fair values of derivative instruments
Fair value of derivative assets	0	0
Designated as Hedging Instrument | Interest Rate Swap [Member] | Other Current Liabilities
Fair values of derivative instruments
Fair value of derivative liabilities	0	0
Designated as Hedging Instrument | Interest Rate Swap [Member] | Other Liabilities [Member]
Fair values of derivative instruments
Fair value of derivative liabilities	10,871	5,085
Not designated as hedging instruments | Foreign exchange contracts | Other Current Assets
Fair values of derivative instruments
Fair value of derivative assets	4,604	2,257
Not designated as hedging instruments | Foreign exchange contracts | Other Current Liabilities
Fair values of derivative instruments
Fair value of derivative liabilities	405	3,747
Not designated as hedging instruments | Foreign exchange contracts | Other Liabilities [Member]
Fair values of derivative instruments
Fair value of derivative liabilities	$ 0	$ 0