Basis Of Presentation And Organization (Details) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2020 USD ($)
Property, Plant and Equipment [Line Items]
Other Asset Impairment Charges	$ 0.1	$ 6.7
Government Subsidies and Incentives	2.8	7.1
Hosting Arrangement, Service Contract, Implementation Cost, Capitalized, before Accumulated Amortization	24.1	24.1
Hosting Arrangement, Service Contract, Implementation Cost, Capitalized, Accumulated Amortization	$ 0.7	$ 0.7
Cloud Computing Arrangements | Minimum
Property, Plant and Equipment [Line Items]
Useful life		10 months
Cloud Computing Arrangements | Maximum
Property, Plant and Equipment [Line Items]
Useful life		5 years