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DERIVATIVES - DERIVATIVE ASSETS AND LIABILITIES (Details) - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Derivative Assets:    
Current assets $ 48 $ 0
Noncurrent assets 6 0
Derivative Liabilities:    
Current liabilities (2,044) 0
Long-term liabilities (772) 0
Total derivative liabilities, net $ (2,762) $ 0