INCOME TAXES - Income Before Income Taxes and Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Loss from continuing operations before income taxes:
United States	$ (657.2)	$ (217.0)
Foreign	15.0	16.3
(Loss) income from operations before income taxes	(642.2)	(200.7)
Provision for income taxes:
United States federal	0.0	4.8
State and local	5.2	0.5
Foreign	26.5	0.9
Total provision for income taxes	31.7	6.2
Current:
United States federal	0.0	4.8
State and local	0.2	1.4
Foreign	19.7	20.0
Current	19.9	26.2
Deferred:
United States federal	0.0	0.0
State and local	5.0	(0.9)
Foreign	6.8	(19.1)
Deferred	$ 11.8	$ (20.0)