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CONVERTIBLE SENIOR NOTES (Details) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jul. 27, 2010
Dec. 31, 2014
Jul. 09, 2014
Dec. 31, 2016
Dec. 31, 2015
Debt          
Non-cash deferred financing amortization costs included in interest expense   $ 845   $ 2,847 $ 2,379
Predecessor          
Debt          
Non-cash interest expense recognized     $ 1,592    
Non-cash deferred financing amortization costs included in interest expense     4,461    
Predecessor | 2010 Notes          
Debt          
Proceeds from convertible debt $ 125,000        
Interest rate on convertible notes (as a percent) 5.00%        
Interest expense, including amortization of discount not recorded     $ 2,522    
Effective interest rate on liability component (as a percent)     10.00%    
Cash interest expense recognized     $ 1,886    
Non-cash interest expense recognized     1,592    
Non-cash deferred financing amortization costs included in interest expense     $ 216