STOCK-BASED COMPENSATION - Schedule of Activity of Equity Compensation Plans (Details) - Options/SOSARs shares in Thousands	6 Months Ended
	Jun. 30, 2021 $ / shares shares
Number of Shares
Outstanding, beginning (in shares) | shares	65
Granted (in shares) | shares	0
Exercised (in shares) | shares	0
Expired or cancelled (in shares) | shares	0
Outstanding, ending (in shares) | shares	65
Exercisable (in shares) | shares	65
Weighted Average Exercise Price
Outstanding, beginning (in dollars per share) | $ / shares	$ 7.92
Granted (in dollars per share) | $ / shares	0
Exercised (in dollars per share) | $ / shares	0
Expired or cancelled (in dollars per share) | $ / shares	0
Outstanding, ending (in dollars per share) | $ / shares	7.92
Exercisable, weighted average exercise price (in dollars per share) | $ / shares	$ 7.92