STOCKHOLDERS' DEFICIT - Narrative (Details) $ / shares in Units, $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2023 USD ($) $ / shares shares	Sep. 30, 2023 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common shares available for grant, outstanding (in shares)	60,700,000	60,700,000
Nonvested RSUs (in shares)	38,600,000	38,600,000
Weighted average fair value of RSAs and RSUs (in dollars per share） | $ / shares	$ 2.74	$ 2.74
Common shares purchased for award (in shares)	22,000,000	22,000,000
Weighted average price of shares purchased (in dollars per share) | $ / shares	$ 8.81	$ 8.81
Options granted (in shares)	0	0
RSUs or RSAs granted (in shares)	0	0
Stock options cancelled (in shares)	0	1,900,000
RSUs or RSAs forfeited (in shares)	1,300,000	6,600,000
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option, unrecognized share-based compensation expense | $	$ 62.6	$ 62.6
Options remaining contractual term		2 years 3 months 18 days
Restricted Stock Units and Restricted Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSUs and RSAs, unrecognized share-based compensation expense | $	50.8	$ 50.8
Period for recognition		2 years 3 months 18 days
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSUs and RSAs, unrecognized share-based compensation expense | $	$ 13.1	$ 13.1