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STOCK-BASED COMPENSATION - Narrative - Stock Options (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 12 Months Ended
Dec. 31, 2020
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
STOCK-BASED COMPENSATION            
Proceeds from stock options exercised   $ 0.0        
Weighted average fair value (in dollars per share)     $ 53.21 $ 128.86    
Fair value of options vested   11.9 $ 9.2 $ 10.8    
Stock Options            
STOCK-BASED COMPENSATION            
Unrecognized compensation cost   $ 8.6        
Weighted-average period for recognition of unrecognized compensation cost (in years)   1 year 10 months 24 days        
Exercises in period (in shares)   0 0      
Intrinsic value of stock options exercised       $ 51.4    
Granted (in shares)   0        
Granted (in dollars per share)   $ 0        
Stock Options | One year from the grant date            
STOCK-BASED COMPENSATION            
Vesting period     1 year 1 year    
Stock Options | Three years from the grant date            
STOCK-BASED COMPENSATION            
Vesting period     3 years 3 years    
Vesting percentage     33.00% 33.00%    
Stock Options | Four years from the grant date            
STOCK-BASED COMPENSATION            
Vesting period     4 years 4 years    
Vesting percentage     25.00% 25.00%    
Stock Options | Six years from the grant date            
STOCK-BASED COMPENSATION            
Vesting period     6 years 6 years    
Performance Options            
STOCK-BASED COMPENSATION            
Unrecognized compensation cost   $ 11.6        
Weighted-average period for recognition of unrecognized compensation cost (in years)   1 year 10 months 24 days        
Exercises in period (in shares)   0        
Granted (in shares)   0 0 0    
Weighted average fair value (in dollars per share)         $ 142.54  
Granted (in dollars per share)   $ 0        
Return performance, percent of target stock price   167.00%       81.00%
Maximum number of shares for earned (in shares)   395,404       27,132
Target number of shares that would vest upon achieving a targeted total shareholder return performance (in shares)           16,247
Performance awards earned (in shares)   0        
Performance Options | Chairman and Chief Executive Officer            
STOCK-BASED COMPENSATION            
Granted (in dollars per share) $ 300          
Exercise price premium (percentage) 25.00%          
Post-exercise holding requirement period (in years) 2 years          
Performance Options | Minimum            
STOCK-BASED COMPENSATION            
Return performance, percent of target stock price           41.00%
Performance Options | Performance measurement period one            
STOCK-BASED COMPENSATION            
Return performance, percent of target stock price 81.00%       81.00%  
Maximum number of shares for earned (in shares) 31,940       31,940  
Performance Options | Performance measurement period one | Minimum            
STOCK-BASED COMPENSATION            
Return performance, percent of target stock price 41.00%       41.00%  
Performance Options | Performance measurement period two            
STOCK-BASED COMPENSATION            
Return performance, percent of target stock price 135.00%       135.00%  
Maximum number of shares for earned (in shares) 363,464       363,464  
Performance Options | Performance measurement period two | Minimum            
STOCK-BASED COMPENSATION            
Return performance, percent of target stock price 81.00%       81.00%