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STOCK-BASED COMPENSATION - Restricted Stock Awards (Details) - Restricted Stock - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Number of Shares      
Unvested, beginning of period (in shares) 452,197    
Granted (in shares) 165,149    
Vested (in shares) (167,086)    
Forfeited (in shares) (23,118)    
Unvested, end of period (in shares) 427,142 452,197  
Weighted Average Grant-Date Fair Value      
Unvested, beginning of period (in dollars per share) $ 76.88    
Granted (in dollars per share) 94.88    
Vested (in dollars per share) 74.37    
Forfeited (in dollars per share) 80.17    
Unvested, end of period (in dollars per share) $ 84.64 $ 76.88  
Total unrecognized compensation cost $ 25.6    
Expected to be recognized over a weighted average period 2 years 6 months    
Fair value of awards vested in period $ 16.4 $ 17.7 $ 13.3