SHARE-BASED COMPENSATION - Warrant Compensation Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	$ 30.5	$ 19.3	$ 28.8
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	0.8	1.0	1.0
Warrant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	14.5	8.8	0.0
Warrant | Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	8.8	8.8	0.0
Warrant | Other insurance (benefit) expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	$ 5.7	$ 0.0	$ 0.0