INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
Valuation Allowance [Line Items]
Effective tax rate	210.50%	151.90%
Effective tax rate, excluding discrete items	14.80%	3.80%
Valuation allowance	$ 36.0	$ 36.0
Valuation allowance, income tax expense		35.8
Deferred tax assets, other comprehensive loss	0.2	0.2
Unrecognized tax benefits	0.7	0.7
Unrecognized tax benefits that would impact effective tax rate	6.2	6.2
Gross increase to current year unrecognized tax benefits related to federal and state tax issues		0.7
Domestic Tax Authority [Member]
Valuation Allowance [Line Items]
Valuation allowance	$ 37.2	$ 37.2
State and Local Jurisdiction [Member]
Valuation Allowance [Line Items]
Valuation allowance			$ 1.2