STOCK OPTIONS AND OTHER EQUITY AWARDS - Outstanding and Exercisable (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Options Outstanding
Total Options (in shares)	1,396,794	1,593,241
Weighted-Average Exercise Price (in dollars per share)	$ 15.36	$ 14.96
Options Exercisable
Total Options (in shares)	947,988
Weighted-Average Exercise Price (in dollars per share)	$ 14.66
Stock Options
Options Outstanding
Intrinsic Value (in millions)	$ 10,200,000
Weighted-Average Remaining Life	5 years 7 months 20 days
Options Exercisable
Intrinsic Value (in millions)	$ 7,600,000
Weighted-Average Remaining Life	4 years 9 months 18 days