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]
Effective income tax rate, excluding discrete items			32.10%	25.90%
Income taxes provision	$ (10.4)	$ 11.8	$ 15.5	$ 26.7
Effective income tax rate	22.60%	(68.60%)	(10.50%)	(10.40%)
Effective income tax rate reconciliation, discrete expense (benefit)	$ (8.9)	$ (5.7)	$ 0.4	$ (1.8)
Effective income tax rate reconciliation, tax release of reserves for uncertain tax positions	(10.4)	(10.8)	(7.8)	(11.2)
Valuation allowance	$ 1.5	4.3	7.5	4.3
Miscellaneous income tax expense		$ 0.8	$ 0.7	$ 5.1