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Basis of Presentation and Accounting Policies - Additional Information (Details) € in Millions, $ in Millions	1 Months Ended		3 Months Ended
	Apr. 30, 2019 USD ($)	Apr. 30, 2019 EUR (€)	Sep. 30, 2019	Jun. 30, 2019 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Accounting Policies [Line Items]
Net proceeds from sale of tax credits	$ 103.5	€ 92.0
Goodwill					$ 1,233.1	$ 1,260.1
Germany
Accounting Policies [Line Items]
Goodwill					$ 65.6
Discount Rates
Accounting Policies [Line Items]
Discount rate for goodwill impairment test (as a percent)					0.108
Terminal Value Revenue Growth Rate
Accounting Policies [Line Items]
Discount rate for goodwill impairment test (as a percent)					0.02
Minimum
Accounting Policies [Line Items]
Percentage of goodwill over fair value of reporting unit			20.00%
Germany
Accounting Policies [Line Items]
Non-cash impairment charge loss				$ 60.2

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