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Fair Value of Financial Instruments and Hedging Activities - Derivative instruments (Details) € in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($) instrument	Mar. 31, 2019 USD ($)	Mar. 31, 2020 EUR (€) instrument	Dec. 31, 2019 USD ($)	Sep. 03, 2019 USD ($)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset	$ 0.6			$ 3.5
Derivative liability	7.9			11.4
Cross Currency Interest Rate Swap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of gain (loss) recognized in earnings	$ 0.0	$ 0.0
Term Loan \| Interest Rate Swap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative liability, notional amount					$ 300.0
Derivative, fixed interest rate					1.19%
Maturing March 2023 \| Cross Currency Interest Rate Swap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of derivative instruments \| instrument	2		2
Derivative asset, notional amount	$ 500.0
Derivative liability, notional amount \| €			€ 450.7
Asset, fair value disclosure	0.6
Amount of gain (loss) recognized in earnings	4.5
Other Assets
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset	0.6			3.5
Other Liabilities
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative liability	$ 7.9			$ 11.4