Financial Instruments and Fair Value Measurements - Schedule of Carrying and Fair Values by Balance Sheet Grouping (Details) - USD ($) $ in Millions		Sep. 30, 2020	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion	[1]	$ 1,910.8	$ 1,867.5
Other installment financing arrangements		42.2	43.5
Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion	[1]	1,945.4	1,921.5
Other installment financing arrangements		$ 52.4	$ 55.5

[1] Excludes finance leases, other financing arrangements and note issuance costs.