INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Tax Disclosure [Abstract]
(Provision for) benefit from income taxes	$ (13.9)	$ 1.1	$ (36.0)	$ 4.9
Income (loss) from continuing operations before income taxes	$ 61.4	$ 20.9	$ 195.5	$ (10.8)
Effective income tax rate, continuing operations	22.60%	(5.30%)	18.40%	45.40%