STOCK-BASED COMPENSATION (Analysis of Restricted Stock Award Activity) (Details) - Restricted Stock Awards	12 Months Ended
	Dec. 31, 2020 $ / shares shares
Shares
Non-vested at beginning of period (in shares) | shares	246,750
Granted (in shares) | shares	101,130
Vested (in shares) | shares	(77,900)
Forfeited (in shares) | shares	(52,097)
Non-vested at end of period (in shares) | shares	217,883
Weighted-Average Grant Date Fair Value
Non-vested at beginning of period (in dollars per share) | $ / shares	$ 43.31
Granted (in dollars per share) | $ / shares	37.87
Vested (in dollars per share) | $ / shares	39.93
Forfeited (in dollars per share) | $ / shares	41.40
Non-vested at end of period (in dollars per share) | $ / shares	$ 42.45