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EQUITY TRANSACTIONS (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
9 Months Ended
Sep. 30, 2016
Dec. 31, 2015
Dec. 31, 2014
Equity, Class of Treasury Stock [Line Items]      
Stock Repurchase Program, Not Settled, Amount $ 0 $ 900  
Treasury Stock, Shares, Acquired 410    
Treasury Stock Acquired, Average Cost Per Share $ 6.70    
Treasury Stock, Value, Acquired, Cost Method $ 2,746    
Stock Repurchase Program, Remaining Authorized Repurchase Amount $ 22,313    
Stock Repurchase Plan V [Domain]      
Equity, Class of Treasury Stock [Line Items]      
Stock Repurchase Program, Authorized Amount     $ 50,000
Stock Repurchase Plan VI [Domain]      
Equity, Class of Treasury Stock [Line Items]      
Stock Repurchase Program, Authorized Amount   $ 50,000