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STOCK COMPENSATION PLAN - Narrative (Details)
$ in Millions
12 Months Ended 40 Months Ended
Jun. 02, 2022
shares
Sep. 05, 2019
shares
Dec. 31, 2022
USD ($)
shares
Dec. 31, 2021
USD ($)
shares
Dec. 31, 2019
USD ($)
installment
Dec. 31, 2022
USD ($)
shares
Dec. 31, 2020
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Compensation expense | $     $ 13.8 $ 14.0      
Restricted Stock              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Deferred stock-based compensation | $     $ 0.0     $ 0.0  
Deferred stock-based compensation, recognition period     9 months        
Restricted Stock Units              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Deferred stock-based compensation | $     $ 11.1     11.1  
Awards granted (in shares)     3,047,238 1,761,779      
Accelerated vesting, number of awards (in shares)     0        
Accelerated cost | $     $ 0.0     2.0  
Restricted Stock and Restricted Stock Units              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Fair value of restricted stock and restricted stock units vested | $     12.9 $ 9.7      
Deferred stock-based compensation | $     $ 11.1     $ 11.1  
Awards granted (in shares)     3,108,400 1,782,200      
Awards granted and outstanding (in shares)     2,348,100 2,542,500   2,348,100 1,798,900
Stock Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Additional shares reserved (in shares) 2,000,000            
Shares reserved for issuance (in shares)     10,565,000     10,565,000  
Shares remaining available for grants (in shares)     4,300,000     4,300,000  
Options exercisable (in shares)     0 0   0  
Stock option activity (in shares)     0 0      
Compensation expense | $     $ 13.8 $ 14.0      
Stock Plan | Stock options              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award requisite service period     7 years        
Stock Plan | Stock options | Minimum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period     1 year        
Stock Plan | Stock options | Maximum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period     4 years        
Stock Plan | Restricted Stock              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period     12 months        
Compensation expense | $     $ 0.1        
Awards granted (in shares)     61,138 20,442      
Stock Plan | Restricted Stock | Minimum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period     2 years        
Stock Plan | Restricted Stock | Maximum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period     5 years        
2019 Transaction Incentive Program | Acquisition, Integration and Divestiture Costs              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Cash-based awards granted, amortization expense | $     $ 0.9     $ 8.4  
2019 Transaction Incentive Program | Restricted Stock Units              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Compensation expense | $     $ 9.7        
Accelerated cost | $           $ 1.8  
2019 Transaction Incentive Program | Time-Based RSUs              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Awards granted (in shares)     78,000        
Awards granted and outstanding (in shares)     34,713     34,713  
2019 Transaction Incentive Program | Time-Based RSUs | First Tranche              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting, percentage     50.00%        
2019 Transaction Incentive Program | Time-Based RSUs | Second Tranche              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting, percentage     50.00%        
2019 Transaction Incentive Program, Tier 1              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Cash-based awards | $         $ 6.8    
Number of installments | installment         2    
2019 Transaction Incentive Program, Tier 1 | Restricted Stock Units              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Proportion settled in cash     67.00%        
Proportion settled in RSU's     33.00%        
Accelerated vesting, number of awards (in shares)           47,743  
2019 Transaction Incentive Program, Tier 1 | Restricted Stock Units | First Tranche              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting, percentage     50.00%        
2019 Transaction Incentive Program, Tier 1 | Restricted Stock Units | Second Tranche              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting, percentage     50.00%        
2019 Transaction Incentive Program, Tier 1 | Time-Based RSUs              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of shares authorized (in shares)   206,812          
2019 Transaction Incentive Program, Tier 2              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Cash-based awards | $         $ 2.5    
Number of installments | installment         1    
2019 Transaction Incentive Program, Tier 2 | Restricted Stock Units              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting, percentage     100.00%        
LTIP Plan | Restricted Stock Units              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Compensation expense | $     $ 4.0        
Accelerated vesting, number of awards (in shares)           57,763  
LTIP Plan | Time-Based RSUs              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period     3 years        
Awards granted (in shares)     0 1,700,000      
Period remaining after termination date for accelerated vesting to apply   12 months          
LTIP Plan | Time-Based RSUs | First Tranche              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting, percentage     50.00%        
LTIP Plan | Time-Based RSUs | Second Tranche              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting, percentage     25.00%        
LTIP Plan | Time-Based RSUs | Third Tranche              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting, percentage     25.00%        
LTIP Plan | Performance-Based RSUs              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period     3 years        
Compensation expense | $     $ 1.8        
Deferred stock-based compensation | $     10.9     $ 10.9  
Total LTIP and TIP RSU's | Time-Based RSUs              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Compensation expense | $     15.5        
Deferred stock-based compensation | $     $ 6.7     $ 6.7  
2022 Incentive Program | Time-Based RSUs              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Equity awards granted, net of forfeitures (in shares)     1,400,000        
2022 Incentive Program | Time-Based RSUs | First Tranche              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Awards vesting (in shares)     400,000        
Award vesting, percentage     100.00%        
2022 Incentive Program | Time-Based RSUs | Second Tranche              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Awards vesting (in shares)     1,000,000        
2022 Incentive Program | Time-Based RSUs | Second Tranche, Portion One              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting, percentage     50.00%        
2022 Incentive Program | Time-Based RSUs | Second Tranche, Portion Two              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting, percentage     50.00%