Quarterly report pursuant to Section 13 or 15(d)

EQUITY AND EARNINGS PER SHARE (Outstanding Options Summary) (Details)

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EQUITY AND EARNINGS PER SHARE (Outstanding Options Summary) (Details) - USD ($)
$ / shares in Units, $ in Millions
 1 Months Ended 3 Months Ended 12 Months Ended
Feb. 02, 2021
Apr. 30, 2018
Feb. 28, 2017
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2019
Dec. 31, 2020
Related Party Transaction              
Stock options outstanding (in shares)       3,887,080     4,935,732
Weighted average strike price (in dollars per share)       $ 3.00     $ 2.57
Number of options reverted (in shares)           921,992  
Stock-based compensation expense (adjustment)           $ (1.2)  
Exercised (in shares)       (1,048,652)      
Exercised (in dollars per share)       $ 1.00      
Shares issued from equity raise (in shares) 23,285,553            
Held by the former Manager              
Related Party Transaction              
Stock options outstanding (in shares)       2,578,593      
Exercised (in shares)       (1,048,652)      
Exercised (in dollars per share)       $ 1.00      
Shares issued from equity raise (in shares)       736,551      
Issued to the former Manager and subsequently transferred to certain of the Manager’s employees              
Related Party Transaction              
Stock options outstanding (in shares)       1,308,154      
Shares granted (shares)   1,152,495 1,152,495        
Issued to the independent directors              
Related Party Transaction              
Stock options outstanding (in shares)       333      
Stock options              
Related Party Transaction              
Stock-based compensation expense (adjustment)       $ 0.2 $ (0.1)    
Unrecognized stock-based compensation expense       $ 0.9      
Unrecognized stock-based compensation expense, period for recognition       1 year 7 months 6 days