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SHAREHOLDERS’ EQUITY AND SHARE-BASED COMPENSATION - Narrative (Details) $ / shares in Units, $ in Thousands		1 Months Ended	3 Months Ended		6 Months Ended
	May 15, 2018 $ / shares shares	Apr. 30, 2018	Jun. 30, 2022 USD ($) shares	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) component $ / shares shares	Jun. 30, 2021 USD ($) shares	Dec. 31, 2021 shares
Share Repurchase Program
Authorized amount \| $			$ 72,000		$ 72,000
Capacity available to repurchase common stock under senior secured term loan \| $			420,000		420,000
Share-Based Compensation
Share-based compensation expense \| $			1,300	$ 600	2,579	$ 2,079
Estimated unrecognized compensation costs \| $			$ 5,400		$ 5,400
Weighted average remaining requisite service period for stock options over which unrecognized compensation costs would be recognized					1 year 6 months 3 days
Outstanding (in shares)			730,539		730,539		687,339
Stock options granted (in shares)					105,000	0
Weighted average exercise price (in usd per share) \| $ / shares					$ 11.86
Stock Options, Service-Based
Share-Based Compensation
Outstanding (in shares)			185,000		185,000
Stock Options, Service-Based \| Minimum
Share-Based Compensation
Vesting period					3 years
Stock Options, Service-Based \| Maximum
Share-Based Compensation
Vesting period					4 years
Expiration term					10 years
Stock Options, Market-Based
Share-Based Compensation
Outstanding (in shares)			96,000		96,000
Number of components of an award \| component					2
Allowable performance period before expiration date					3 years
Stock Options, Market-Based \| Minimum
Share-Based Compensation
Vesting period					3 years
Expiration term					10 years
Stock Options, Market-Based \| Maximum
Share-Based Compensation
Vesting period					4 years
Stock Options, Market-Based, Ordinary Performance \| Minimum
Share-Based Compensation
Percentage of compounded annual gain of stock price over exercise price required for the award to vest					20.00%
Stock Options, Market-Based, Extraordinary Performance \| Minimum
Share-Based Compensation
Percentage of compounded annual gain of stock price over exercise price required for the award to vest					25.00%
Stock Options, Performance-Based
Share-Based Compensation
Outstanding (in shares)			450,000		450,000
Stock Options, Performance-Based \| Minimum
Share-Based Compensation
Allowable performance period before expiration date					10 years
Attainment above threshold performance levels, vesting percentage					50.00%
Stock Options, Performance-Based \| Maximum
Share-Based Compensation
Attainment above threshold performance levels, vesting percentage					200.00%
Restricted Stock and Restricted Stock Units, Service-Based
Share-Based Compensation
Restricted shares and restricted share units outstanding (in shares)			413,000		413,000
Restricted Stock and Restricted Stock Units, Service-Based \| Minimum
Share-Based Compensation
Vesting period					1 year
Restricted Stock and Restricted Stock Units, Service-Based \| Maximum
Share-Based Compensation
Vesting period					4 years
Restricted Stock and Restricted Stock Units (RSUs), Performance-Based
Share-Based Compensation
Restricted shares and restricted share units outstanding (in shares)			154,000		154,000
Restricted Stock and Restricted Stock Units (RSUs), Performance-Based \| Maximum
Share-Based Compensation
Attainment above threshold performance levels, vesting percentage					150.00%
Restricted Stock and Restricted Stock Units (RSUs), Market-Based
Share-Based Compensation
Restricted shares and restricted share units outstanding (in shares)			112,000		112,000
Restricted Stock and Restricted Stock Units (RSUs), Market-Based \| Minimum
Share-Based Compensation
Vesting period					30 days
Vesting percentage					50.00%
Restricted Stock and Restricted Stock Units (RSUs), Market-Based \| Maximum
Share-Based Compensation
Vesting period					1 year
Vesting percentage					50.00%
Restricted Stock and Restricted Stock Units (RSUs), Performance-Based and Market-Based
Share-Based Compensation
Restricted shares and restricted share units outstanding (in shares)			98,000		98,000
Restricted Stock and Restricted Stock Units (RSUs), Performance-Based and Market-Based \| Maximum
Share-Based Compensation
Attainment above threshold performance levels, vesting percentage					300.00%
Restricted Stock Units (RSUs)
Share-Based Compensation
Restricted share units granted (in shares)					440,000
Restricted share units granted, weighted average grant date fair value (in usd per share) \| $ / shares					$ 10.69
Restricted Stock Units (RSUs), Performance-Based and Market-Based
Share-Based Compensation
Restricted share units granted (in shares)					46,000	29,000
Restricted Stock Units (RSUs), Market-Based
Share-Based Compensation
Restricted share units granted (in shares)					46,000	88,000
Stock Options
Share-Based Compensation
Stock options granted (in shares)					105,000
Credit Facility \| April 3, 2018 Credit Agreement \| Line of Credit
Share Repurchase Program
Leverage ratio at which mandatory prepayments increase under the Credit Agreement (exceeds)		3.50
Share Repurchase Program, Current
Share Repurchase Program
Number of shares of common stock authorized to be purchased (in shares)	4,300,000
Percentage of outstanding shares authorized to be repurchased	25.00%
Minimum purchase price authorized (in usd per share) \| $ / shares	$ 1.00
Maximum purchase price authorized (in usd per share) \| $ / shares	$ 500.00
Period that shares may be repurchased, from the date of approval	5 years
Remaining number of shares available for repurchase under the plan (in shares)			2,400,000		2,400,000
Number of shares of common stock purchased (in shares)					0	0