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OTHER FINANCIAL ITEMS, NET OTHER FINANCIAL ITEMS, NET (Narrative) (Details) - USD ($)
6 Months Ended 12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Other Financial Items- Text Details [Abstract]      
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net $ 0 $ 200,000 $ (1,300,000)