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Amount, after accumulated amortization, of debt issuance costs classified as noncurrent. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Indebtedness (Components of Indebtedness) (Details) € in Millions, $ in Millions	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Oct. 31, 2019 USD ($)	Oct. 31, 2019 EUR (€)	Dec. 31, 2018
Debt Instrument [Line Items]
Other long-term debt	$ 11.3	$ 12.5
Debt issuance costs	(2.0)	(2.3)
Long-term Debt	1,671.4	1,194.7
Current portion of long term debt	(1.9)	(2.9)
Total long-term indebtedness, less current portion	1,669.5	1,191.8
Senior Notes Due 2025, 1.002% [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, percent					1.002%
Senior term loan due 2022
Debt Instrument [Line Items]
Senior notes	164.3	168.1
Credit facility, expires 2023
Debt Instrument [Line Items]
Credit facility	504.0	0.0
1.002% Senior term loan due 2025
Debt Instrument [Line Items]
Senior notes	273.9	280.2
Senior term loans due between 2021 and 2028
Debt Instrument [Line Items]
Senior notes	719.9	736.2
Current portion of long term debt			$ (61.1)	€ (56.0)
Current portion of other long-term debt
Debt Instrument [Line Items]
Current portion of long term debt	$ (1.9)	$ (2.9)