STOCK-BASED COMPENSATION - Schedule of Awards Outstanding and Exercisable (Details) - Stock Options and Stock Appreciation Rights (SARs) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average exercise prices (dollars per share)	$ 7.92	$ 7.55
Grants outstanding (shares)	65
Grants exercisable (shares)	65
$8.14 to $10.21
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of exercise prices, minimum (dollars per share)	$ 8.14
Range of exercise prices, maximum (dollars per share)	10.21
Weighted average exercise prices (dollars per share)	$ 8.83
Grants outstanding (shares)	45
Intrinsic value - grants outstanding	$ 0
Grants exercisable (shares)	45
Intrinsic value - grants exercisable	$ 0
$5.86
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of exercise prices, minimum (dollars per share)	$ 5.86
Weighted average exercise prices (dollars per share)	$ 5.86
Grants outstanding (shares)	20
Intrinsic value - grants outstanding	$ 0
Grants exercisable (shares)	20
Intrinsic value - grants exercisable	$ 0