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SHARE-BASED COMPENSATION PLANS - Company's stock option activity (Details) - Incentive Plan 2017 - Employee Stock Option - USD ($)
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Share-Based Compensation Plans    
Shares, Outstanding at beginning of period 1,345,369 1,279,833
Shares, Granted 149,200 143,500
Shares, Exercised (487,331) (60,914)
Shares, Forfeited or expired (40,021) (17,050)
Shares, Outstanding at end of period 967,217 1,345,369
Shares, Exercisable at end of period 524,829 891,733
Weighted Average Exercise Price, Outstanding at beginning of period (in dollars per share) $ 25.83 $ 25.44
Weighted Average Exercise Price, Granted (in dollars per share) 25.79 28.83
Weighted Average Exercise Price, Exercised (in dollars per share) 25.02 24.96
Weighted Average Exercise Price, Forfeited or expired (in dollars per share) 26.31 24.79
Weighted Average Exercise Price, Outstanding at end of period (in dollars per share) 26.22 25.83
Weighted Average Exercise Price, Exercisable at end of period (in dollars per share) $ 27.30 26.36
Weighted Average Remaining Contractual Term (Years), Outstanding 6 years 8 months 12 days  
Weighted Average Remaining Contractual Term (Years), Exercisable, Outstanding 5 years 4 months 24 days  
Aggregate Intrinsic Value, Outstanding $ 5,649,000  
Aggregate Intrinsic Value, Exercisable $ 2,804,000  
Fair market value of options granted (in dollars per share) $ 6.63 $ 6.78