SHARE-BASED COMPENSATION - Stock Options by Exercise Price (Details) shares in Thousands	12 Months Ended
	Dec. 31, 2021 $ / shares shares
Options Outstanding
Number Outstanding (in shares) | shares	7,073
Options Exercisable
Number Exercisable (in shares) | shares	7,068
$1.46 - $1.46
Range of Exercise Prices
Low (in dollars per share)	$ 1.46
High (in dollars per share)	$ 1.46
Options Outstanding
Number Outstanding (in shares) | shares	1,095
Weighted Average Remaining Contract Life	4 years 4 months 24 days
Weighted Average Exercise Prices (in dollars per share)	$ 1.46
Options Exercisable
Number Exercisable (in shares) | shares	1,095
Weighted Average Exercise Price (in dollars per share)	$ 1.46
$1.57 - $2.78
Range of Exercise Prices
Low (in dollars per share)	1.57
High (in dollars per share)	$ 2.78
Options Outstanding
Number Outstanding (in shares) | shares	820
Weighted Average Remaining Contract Life	4 years 3 months 18 days
Weighted Average Exercise Prices (in dollars per share)	$ 2.54
Options Exercisable
Number Exercisable (in shares) | shares	820
Weighted Average Exercise Price (in dollars per share)	$ 2.54
$3.29 - $3.29
Range of Exercise Prices
Low (in dollars per share)	3.29
High (in dollars per share)	$ 3.29
Options Outstanding
Number Outstanding (in shares) | shares	2,092
Weighted Average Remaining Contract Life	5 years 2 months 12 days
Weighted Average Exercise Prices (in dollars per share)	$ 3.29
Options Exercisable
Number Exercisable (in shares) | shares	2,092
Weighted Average Exercise Price (in dollars per share)	$ 3.29
$3.41 - $6.59
Range of Exercise Prices
Low (in dollars per share)	5.58
High (in dollars per share)	$ 7.09
Options Outstanding
Number Outstanding (in shares) | shares	824
Weighted Average Remaining Contract Life	2 years 3 months 18 days
Weighted Average Exercise Prices (in dollars per share)	$ 6.68
Options Exercisable
Number Exercisable (in shares) | shares	824
Weighted Average Exercise Price (in dollars per share)	$ 6.68
$6.90 - $7.61
Range of Exercise Prices
Low (in dollars per share)	7.10
High (in dollars per share)	$ 7.61
Options Outstanding
Number Outstanding (in shares) | shares	245
Weighted Average Remaining Contract Life	1 year 4 months 24 days
Weighted Average Exercise Prices (in dollars per share)	$ 7.45
Options Exercisable
Number Exercisable (in shares) | shares	245
Weighted Average Exercise Price (in dollars per share)	$ 7.45
$7.74 - $7.74
Range of Exercise Prices
Low (in dollars per share)	7.74
High (in dollars per share)	$ 7.74
Options Outstanding
Number Outstanding (in shares) | shares	694
Weighted Average Remaining Contract Life	3 years 3 months 18 days
Weighted Average Exercise Prices (in dollars per share)	$ 7.74
Options Exercisable
Number Exercisable (in shares) | shares	694
Weighted Average Exercise Price (in dollars per share)	$ 7.74
$7.88 - $7.88
Range of Exercise Prices
Low (in dollars per share)	7.88
High (in dollars per share)	$ 7.88
Options Outstanding
Number Outstanding (in shares) | shares	20
Weighted Average Remaining Contract Life	6 years 7 months 6 days
Weighted Average Exercise Prices (in dollars per share)	$ 7.88
Options Exercisable
Number Exercisable (in shares) | shares	15
Weighted Average Exercise Price (in dollars per share)	$ 7.88
$8.32 - $8.32
Range of Exercise Prices
Low (in dollars per share)	8.32
High (in dollars per share)	$ 8.32
Options Outstanding
Number Outstanding (in shares) | shares	25
Weighted Average Remaining Contract Life	5 years 9 months 18 days
Weighted Average Exercise Prices (in dollars per share)	$ 8.32
Options Exercisable
Number Exercisable (in shares) | shares	25
Weighted Average Exercise Price (in dollars per share)	$ 8.32
$8.92 - $8.92
Range of Exercise Prices
Low (in dollars per share)	8.92
High (in dollars per share)	$ 8.92
Options Outstanding
Number Outstanding (in shares) | shares	1,250
Weighted Average Remaining Contract Life	2 years 1 month 6 days
Weighted Average Exercise Prices (in dollars per share)	$ 8.92
Options Exercisable
Number Exercisable (in shares) | shares	1,250
Weighted Average Exercise Price (in dollars per share)	$ 8.92
$9.74 - $9.74
Range of Exercise Prices
Low (in dollars per share)	9.74
High (in dollars per share)	$ 9.74
Options Outstanding
Number Outstanding (in shares) | shares	8
Weighted Average Remaining Contract Life	2 years
Weighted Average Exercise Prices (in dollars per share)	$ 9.74
Options Exercisable
Number Exercisable (in shares) | shares	8
Weighted Average Exercise Price (in dollars per share)	$ 9.74