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STOCKHOLDERS' EQUITY - Stock Options (Details) - USD ($)
$ in Millions
1 Months Ended 2 Months Ended 3 Months Ended 9 Months Ended
Oct. 31, 2019
Dec. 31, 2019
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Stock-based compensation            
Financial Designation, Predecessor and Successor [Fixed List] Successor Successor Successor Predecessor Successor Predecessor
2016 Incentive Plan | Stock options            
Stock-based compensation            
Vesting period           3 years
Percentage of awards vesting on the annual anniversary date of the grant         25.00% 33.33%
Expiration term           10 years
Unrecognized compensation expense stock option       $ 0.2   $ 0.2
Weighted average remaining vesting period           9 months 18 days
2020 Incentive Plan | Stock options            
Stock-based compensation            
Vesting period         4 years  
Expiration term         7 years  
Unrecognized compensation expense stock option     $ 1.2   $ 1.2  
Weighted average remaining vesting period         2 years