STOCK-BASED INCENTIVE COMPENSATION - Summary of Outstanding and Exercisable Stock Options (Details)	12 Months Ended
	Dec. 31, 2020 $ / shares shares
Options Outstanding
Options Outstanding (in shares) | shares	412,831
Options Exercisable
Options Exercisable (in shares) | shares	197,735
0
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Lower range limit (in dollars per share)	$ 0.00
Upper range limit (in dollars per share)	$ 8.24
Options Outstanding
Options Outstanding (in shares) | shares	9,901
Weighted Average Exercise Price (in dollars per share)	$ 6.52
Weighted Average Remaining Contractual Life	6 years 1 month 6 days
Options Exercisable
Options Exercisable (in shares) | shares	9,901
Weighted Average Exercise Price (in dollars per share)	$ 6.52
8.24
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Lower range limit (in dollars per share)	8.24
Upper range limit (in dollars per share)	$ 16.52
Options Outstanding
Options Outstanding (in shares) | shares	345,180
Weighted Average Exercise Price (in dollars per share)	$ 12.08
Weighted Average Remaining Contractual Life	7 years 6 months
Options Exercisable
Options Exercisable (in shares) | shares	130,084
Weighted Average Exercise Price (in dollars per share)	$ 10.27
16.52
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Lower range limit (in dollars per share)	16.52
Upper range limit (in dollars per share)	$ 24.76
Options Outstanding
Options Outstanding (in shares) | shares	25,500
Weighted Average Exercise Price (in dollars per share)	$ 22.61
Weighted Average Remaining Contractual Life	2 years 8 months 12 days
Options Exercisable
Options Exercisable (in shares) | shares	25,500
Weighted Average Exercise Price (in dollars per share)	$ 22.61
24.76
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Lower range limit (in dollars per share)	24.76
Upper range limit (in dollars per share)	$ 33.00
Options Outstanding
Options Outstanding (in shares) | shares	15,000
Weighted Average Exercise Price (in dollars per share)	$ 30.41
Weighted Average Remaining Contractual Life	2 years 3 months 18 days
Options Exercisable
Options Exercisable (in shares) | shares	15,000
Weighted Average Exercise Price (in dollars per share)	$ 30.41
33
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Lower range limit (in dollars per share)	33.00
Upper range limit (in dollars per share)	$ 41.28
Options Outstanding
Options Outstanding (in shares) | shares	0
Weighted Average Exercise Price (in dollars per share)	$ 0
Weighted Average Remaining Contractual Life	0 years
Options Exercisable
Options Exercisable (in shares) | shares	0
Weighted Average Exercise Price (in dollars per share)	$ 0
41.28
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Lower range limit (in dollars per share)	41.28
Upper range limit (in dollars per share)	$ 49.52
Options Outstanding
Options Outstanding (in shares) | shares	12,500
Weighted Average Exercise Price (in dollars per share)	$ 44.16
Weighted Average Remaining Contractual Life	1 year 3 months 18 days
Options Exercisable
Options Exercisable (in shares) | shares	12,500
Weighted Average Exercise Price (in dollars per share)	$ 44.16
49.52
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Lower range limit (in dollars per share)	49.52
Upper range limit (in dollars per share)	$ 57.76
Options Outstanding
Options Outstanding (in shares) | shares	3,500
Weighted Average Exercise Price (in dollars per share)	$ 56.24
Weighted Average Remaining Contractual Life	2 years
Options Exercisable
Options Exercisable (in shares) | shares	3,500
Weighted Average Exercise Price (in dollars per share)	$ 56.24
57.76
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Lower range limit (in dollars per share)	57.76
Upper range limit (in dollars per share)	$ 66.00
Options Outstanding
Options Outstanding (in shares) | shares	0
Weighted Average Exercise Price (in dollars per share)	$ 0
Weighted Average Remaining Contractual Life	0 years
Options Exercisable
Options Exercisable (in shares) | shares	0
Weighted Average Exercise Price (in dollars per share)	$ 0
66
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Lower range limit (in dollars per share)	66.00
Upper range limit (in dollars per share)	$ 74.28
Options Outstanding
Options Outstanding (in shares) | shares	1,250
Weighted Average Exercise Price (in dollars per share)	$ 66.52
Weighted Average Remaining Contractual Life	2 years 7 months 6 days
Options Exercisable
Options Exercisable (in shares) | shares	1,250
Weighted Average Exercise Price (in dollars per share)	$ 66.52