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RESTRUCTURING COSTS (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Restructuring Cost and Reserve [Line Items]        
Restructuring costs $ 0 $ 234 $ 0 $ 1,329