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REORGANIZATION (Details) - USD ($)
$ in Millions
Aug. 02, 2019
Dec. 31, 2020
Oct. 08, 2019
Feb. 15, 2018
Jul. 10, 2017
Feb. 16, 2017
Restructuring Support Agreement            
Warrant term (in years)     3 years      
12.0% senior secured second lien notes due 2022            
Restructuring Support Agreement            
Interest rate (as a percent)         12.00%  
6.75% senior notes due 2025            
Restructuring Support Agreement            
Interest rate (as a percent) 6.75% 6.75%   6.75% 6.75% 6.75%
The Restructuring Support Agreement            
Restructuring Support Agreement            
Pro rate share of common stock that unsecured noteholders will receive 91.00%          
Pro rate share of common stock that stockholders will receive 9.00%          
Aggregate price of new common shares offered to unsecured senior noteholders $ 150.2          
Aggregate price of new common shares offered to existing common shareholders $ 5.8          
Price per share discount (as a percent) 26.00%          
Assumed enterprise value $ 425.0          
Consideration to unsecured senior noteholders for backstop senior noteholders rights offering (as a percent) 6.00%          
Cash payment percentage on termination of backstop agreement 6.00%          
Warrant term (in years) 3 years          
Percentage of cumulative warrants issued to new shares 30.00%          
The Restructuring Support Agreement | Maximum            
Restructuring Support Agreement            
Threshold shares of common stock holding by existing stockholders will receive cash 2,000