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EMPLOYEE STOCK COMPENSATION - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Aug. 21, 2012
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Stock option awards | Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period   3 years    
Award expiration period   7 years    
Stock option awards | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period   5 years    
Award expiration period   10 years    
Restricted stock awards and restricted stock units | Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period   1 year    
Restricted stock awards and restricted stock units | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period   5 years    
Initial SAR | Chief Executive Officer        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period 2 years      
Award expiration period 10 years      
SARs granted (in shares) 500,000      
Base price per share (in dollars per share) $ 12.12      
Initial SAR | Tranche One | Chief Executive Officer        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Percentage of vesting award rights 33.33%      
Performance based restricted stock | Chief Executive Officer        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Aggregate grant date fair value market value   $ 5.0    
Stock appreciation rights        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
SARs granted (in shares)   0 0 0
2018 Omnibus Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Maximum number of shares available for awards (shares)Arrangement by Share-based Payment Award, Number of Shares Authorized   4,417,882    
2013 Omnibus Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock available for future awards   4,346,189