INCOME TAX - Reconciliation of Federal Statutory Income Tax Rate and Income Tax Benefit (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
At statutory rate	$ (107.1)	$ (87.5)	$ (40.3)
State taxes	(27.8)	(12.4)	(2.4)
State valuation allowance	27.9	12.0	2.4
Federal valuation allowance	75.0	52.0	16.7
Transaction expenses	0.4	0.0	0.0
Stock/unit-based compensation	21.5	30.0	15.7
Partnership book losses not subject to tax	(2.0)	5.6	7.5
Earnout payments	8.3	0.0	0.0
Deferred tax true-up	0.1	(3.7)	0.0
Permanent items	3.9	2.1	0.4
Total deferred income tax provision (benefit)	$ 0.2	$ (1.9)	$ 0.0