FAIR VALUE MEASUREMENTS Schedule of Fair Value Hierarchy (Details) (Fair Value, Measurements, Recurring [Member], USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets $ 3,063 $ 1,258
Non-marketable securities 3,667 3,384
Total assets 6,730 4,642
Derivatives liabilities 12 0
Fair Value, Inputs, Level 2 [Member]
   
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets 3,063 1,258
Total assets 3,063 1,258
Derivatives liabilities 12 0
Fair Value, Inputs, Level 3 [Member]
   
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Non-marketable securities 3,667 3,384
Total assets $ 3,667 $ 3,384