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STOCK-BASED COMPENSATION (Analysis of Restricted Stock Award Activity) (Details) - Restricted Stock Awards
12 Months Ended
Dec. 31, 2019
$ / shares
shares
Shares  
Non-vested at beginning of period (in shares) | shares 283,975
Granted (in shares) | shares 65,871
Vested (in shares) | shares (55,235)
Forfeited (in shares) | shares (47,861)
Non-vested at end of period (in shares) | shares 246,750
Weighted-Average Grant Date Fair Value  
Non-vested at beginning of period (in dollars per share) | $ / shares $ 39.90
Granted (in dollars per share) | $ / shares 52.50
Vested (in dollars per share) | $ / shares 38.42
Forfeited (in dollars per share) | $ / shares 41.40
Non-vested at end of period (in dollars per share) | $ / shares $ 43.31