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COMMITMENTS, CONTINGENCIES AND DERIVATIVES (Schedule of Derivatives Effects on OCI) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Commitments and Contingencies Disclosure [Abstract]        
Net reclassification adjustment for effective portion of cash flow hedges included in interest expense, gross $ 203 $ 413 $ 487 $ 868