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STOCK-BASED INCENTIVE COMPENSATION - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	May 31, 2021	May 03, 2018
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of shares authorized (in shares)				9,101,734
Proceeds from stock option exercises	$ 400,000		$ 0
Stock Option
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based compensation expense	$ 1,900,000	$ 400,000
Weighted-average grant-date fair value per share (in dollars per share)	$ 17.79	$ 5.94
Options granted in period (in shares)	853,089		0
Value of shares surrendered to satisfy tax withholding obligations	$ 100,000,000	$ 2,700,000
Unrecognized compensation expense	$ 13,900,000
Weighted average period of recognition	2 years 3 months 18 days
Restricted Stock
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based compensation expense	$ 4,900,000	2,300,000
Value of shares surrendered to satisfy tax withholding obligations	0.0	300,000
Unrecognized compensation expense	31,200,000
Value of shares vested in period	$ 1,200,000	1,500,000	$ 1,900,000
Weighted average period of recognition	2 years 1 month 6 days
HC I Incentive Units
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based compensation expense	$ 100,000	$ 200,000	$ 1,900,000
The 2018 Plan
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of shares authorized (in shares)				4,999,999	4,101,735
Minimum
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercisable range of years	7 years
Minimum \| Stock Option
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Vesting period	3 years
Minimum \| Restricted Stock
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Vesting period	1 year
Maximum
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercisable range of years	10 years
Maximum \| Stock Option
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Vesting period	4 years
Maximum \| Restricted Stock
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Vesting period	4 years
Director \| Restricted Stock
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Vesting period	1 year