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FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS Non-Hedge Accounting Activities (Details)
$ in Thousands
Mar. 31, 2016
USD ($)
Feb. 17, 2016
contracts
Feb. 11, 2016
contracts
Dec. 03, 2015
contracts
Forward Contracts [Member]        
Derivative [Line Items]        
Derivative, Number of Instruments Held | contracts   5 1 2
Forward Contract, Dec 3, 2015, 49,517,000 USD [Member]        
Derivative [Line Items]        
Derivative, Notional Amount $ 32,698      
Derivative, Fair Value, Net (1,886)      
Forward Contract, Feb 11, 2016, 54,440 USD [Member]        
Derivative [Line Items]        
Derivative, Notional Amount 50,140      
Derivative, Fair Value, Net (221)      
Forward Contract, Feb 17, 2016, 557,000,000 USD [Member]        
Derivative [Line Items]        
Derivative, Notional Amount 557,000      
Derivative, Fair Value, Net $ (12,410)