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Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Income tax expense (benefit)	$ 3.3	$ (3.0)
Effective income tax rate, continuing operations	(0.70%)	(7.80%)
Unrecognized tax benefit liability, including penalties and accrued interest	$ 47.5			$ 52.6
CARES Act [Member]
Other Tax Expense (Benefit)	$ (7.5)
CARES Act [Member] | Forecast [Member]
Other Tax Expense (Benefit)			$ (10.1)
Transition Tax [Member]
Other Tax Expense (Benefit)		$ (9.3)

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Unrecognized tax benefit liability, including penalties and accrued interest

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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