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SHAREHOLDERS' DEFICIT - Share Repurchase Program (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 12 Months Ended
Oct. 30, 2015
Dec. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Share Repurchase Program        
Shares repurchased and retired     7,201 100
Value of shares repurchased and retired     $ 78,095 $ 995
Average repurchase price per share     $ 10.84 $ 9.95
October 2015 TO        
Share Repurchase Program        
Shares repurchased and retired   2,576    
Value of shares repurchased and retired   $ 24,641    
Average repurchase price per share   $ 9.56    
October 2015 TO | Minimum        
Share Repurchase Program        
Price per share under share repurchase program $ 8.50      
October 2015 TO | Maximum        
Share Repurchase Program        
Amount approved under share repurchase program $ 75,000      
Price per share under share repurchase program $ 9.25