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EQUITY-BASED COMPENSATION - Additional Information (Details) - USD ($)
$ in Millions
1 Months Ended 12 Months Ended
Mar. 31, 2019
Dec. 31, 2019
Dec. 31, 2018
Selling, General and Administrative Expenses      
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]      
Share-based compensation expense   $ (0.1) $ 10.1
RSUs      
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]      
Shares issued   746,612  
Additional shares vested   278,402  
Fair value of RSUs granted   $ 2.5 14.2
Fair value of RSUs vested   1.1 5.3
Unrecognized compensation costs related to unvested RSUs   $ 0.6  
Weighted average period of unrecognized compensation cost to recognize   1 year 18 days  
Vested and not yet settled (in shares)   100,000  
RSUs | Senior Management      
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]      
Shares issued 500,000    
RSUs | Senior Management | April 12, 2019      
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]      
Awards vesting percentage 50.00%    
Additional shares vested   27,229  
RSUs | Senior Management | September 29, 2020      
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]      
Additional shares vested 200,000    
RSUs | Senior Management | January 29, 2021      
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]      
Awards vesting percentage 50.00%    
Additional shares vested   85,074  
Forfeiture of Unvested RSUs | Selling, General and Administrative Expenses      
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]      
Share-based compensation expense   $ 3.8  
Acceleration of Vesting of Certain RSUs | Selling, General and Administrative Expenses      
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]      
Share-based compensation expense     $ 5.7
Long Term Incentive Plan      
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]      
Number of shares authorized (in shares)   2,800,000  
Number of shares available for grant   2,000,000