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EQUITY-BASED COMPENSATION (Successor) (Narrative) (Details) - USD ($)
1 Months Ended 11 Months Ended 12 Months Ended
Feb. 08, 2018
Dec. 31, 2018
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares authorized under plan (in shares)     50,000,000
Equity-based compensation expense $ 0 $ 22,025,000 $ 6,412,000
Vesting period     3 years
Stock options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Option expiration period     7 years
Unrecognized compensation cost     $ 3,500,000
Period for unrecognized compensation cost     9 months 18 days
Stock options | Tranche one      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting percentage     33.33%
Stock options | Tranche two      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting percentage     33.33%
Stock options | Tranche three      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting percentage     33.33%
Restricted Stock Units, Directors      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted (shares)   98,199  
Restricted Stock Units, Employees      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted (shares)   2,140,160  
Restricted Stock Awards      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation cost     $ 2,100,000
Period for unrecognized compensation cost     1 year 4 months 24 days
Granted (shares)   2,238,359 70,093
Restricted Stock Awards | Tranche one      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting percentage     33.33%
Restricted Stock Awards | Tranche two      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting percentage     33.33%
Restricted Stock Awards | Tranche three      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting percentage     33.33%
PSUs      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation cost     $ 0
Granted (shares)   2,093,453 1,220,490
Vesting period   3 years  
Percentage of shares that may be earned     199.00%
PSUs | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of shares that may be earned   0.00%  
PSUs | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of shares that may be earned   200.00%  
PSUs | Tranche one      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting rate   20.00%  
PSUs | Tranche two      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting rate   30.00%  
PSUs | Tranche three      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting rate   50.00%