Fair Value of Financial Instruments and Hedging Activities - Derivatives by Balance Sheet Location (Details) - Derivatives Designated as Hedging Instruments - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Other Assets
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Assets:	$ 0.6	$ 3.5
Other Liabilities
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Liabilities:	7.9	9.1
Cross-Currency Swaps | Other Assets
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Assets:	0.6	0.0
Cross-Currency Swaps | Other Liabilities
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Liabilities:	0.0	9.1
Interest Rate Swap | Other Assets
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Assets:	0.0	3.5
Interest Rate Swap | Other Liabilities
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Liabilities:	$ 7.9	$ 0.0