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Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended				9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Income tax benefit	$ (22.5)			$ (40.4)	$ (63.1)	$ (37.4)
Effective income tax rate, continuing operations	(23.80%)			24.60%	9.60%	55.70%
Tax Adjustments, Settlements, and Unusual Provisions		$ 18.5
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities		25.3
Unrecognized tax benefit liability, including penalties and accrued interest	$ 23.3				$ 23.3		$ 52.6
Settlement with Taxing Authority [Member]
Other Tax Expense (Benefit)					(6.8)
CARES Act [Member]
Other Tax Expense (Benefit)			$ (7.5)		$ (7.0)
Transition Tax [Member]
Other Tax Expense (Benefit)						$ (9.3)
UNITED STATES
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ (36.0)	$ 36.0

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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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