INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Effective income tax rate, excluding discrete items	24.30%	26.50%
Income taxes	$ 19.5	$ 31.5
Effective income tax rate	(433.30%)	302.90%
Accrual of income tax benefits	$ (3.5)
Change in income tax reserve	(3.7)	$ 9.2
Other net expense (benefits)	$ (0.2)	$ 1.2