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SHAREHOLDERS' EQUITY (Details) - USD ($)
$ / shares in Units, $ in Thousands
4 Months Ended 8 Months Ended 12 Months Ended
Dec. 22, 2016
Apr. 30, 2014
Apr. 30, 2014
Dec. 31, 2014
Dec. 31, 2016
Dec. 31, 2015
Stock-based compensation            
Preferred shares, shares issued (in shares)         14,950,000 14,950,000
Series A LLC Preferred Shares            
Stock-based compensation            
Preferred shares, dividend rate (as a percent)         7.375%  
Dividends, preferred stock         $ 373,800  
Successor Company            
Stock-based compensation            
Dividends, preferred stock       $ 20,673 $ 27,564 $ 27,564
Successor Company | Series A LLC Preferred Shares            
Stock-based compensation            
Preferred shares, shares issued (in shares)         14,950,000.00  
Dividends, preferred stock $ 6,900          
Predecessor Company            
Stock-based compensation            
Dividends, preferred stock     $ 6,891      
Predecessor Company | Series A LLC Preferred Shares            
Stock-based compensation            
Preferred shares, dividend rate (as a percent)   7.375%        
Predecessor Company | Restricted common shares            
Restricted common share transactions            
Unvested beginning balance (in shares)     669,828 426,180    
Issued (in shares)     0      
Vested (in shares)     (243,648)      
Unvested ending balance (in shares)   426,180 426,180      
Unrecognized compensation cost (in dollars)   $ 2,200 $ 2,200      
Predecessor Company | Restricted common shares | Manager            
Restricted common share transactions            
Unvested beginning balance (in shares)     584,634 340,986    
Issued (in shares)     0      
Vested (in shares)     (243,648)      
Unvested ending balance (in shares)   340,986 340,986      
Value of unvested restricted common shares granted (in dollars per share)   $ 11.54 $ 11.54      
Predecessor Company | Restricted common shares | Directors            
Restricted common share transactions            
Unvested beginning balance (in shares)     85,194 85,194    
Issued (in shares)     0      
Vested (in shares)     0      
Unvested ending balance (in shares)   85,194 85,194      
Predecessor Company | Common share options            
Stock-based compensation            
Authorized shares available to satisfy awards as of the balance sheet date (in shares)   8,964,625 8,964,625