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STOCK-BASED COMPENSATION - Restricted Stock Awards (Details) - Restricted stock awards - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Number of Shares    
Beginning balance (in shares) 427,142  
Granted (in shares) 112,449  
Vested (in shares) (16,335)  
Forfeited (in shares) (9,610)  
Ending balance (in shares) 513,646  
Weighted Average Grant-Date Fair Value    
Beginning of period (in dollars per share) $ 84.64  
Granted (in dollars per share) 130.50  
Vested (in dollars per share) 83.21  
Forfeited (in dollars per share) 102.97  
End of period (in dollars per share) $ 94.39  
Unrecognized compensation cost $ 35.4  
Period for recognition (in years) 3 years 3 months 18 days  
Fair value of share-based payment awards $ 2.1 $ 1.7