INCOME TAXES - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Tax Disclosure [Abstract]
Effective income tax rate, excluding discrete items			25.90%	25.20%
Income taxes provision	$ 11.8	$ 31.5	$ 26.7	$ 78.2
Effective income tax rate	(68.60%)	21.80%	(10.40%)	48.50%
Income tax accrual benefit	$ 5.7		$ 1.8	$ 5.2
Tax expense, uncertain tax positions	(10.8)		11.2
Valuation allowance	4.3		4.3
Miscellaneous income tax expense (benefit)	$ 0.8	$ (2.3)	$ 5.1	$ (2.2)