Financing Arrangements (Schedule of Long-term Debt) (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Finance Leases	$ 15.4	$ 18.7
Other	19.0	22.3
Total debt	583.0	534.7
Less current portion of long-term debt and short-term debt	(8.3)	(11.6)
Less unamortized debt issuance costs	(4.5)	(5.3)
Total long-term debt, net	$ 570.2	517.8
Revolving credit facility
Debt Instrument [Line Items]
Stated interest rate	1.29%
Long-term debt, gross	$ 198.6	143.7
6.625% Senior Notes due 2027 | Senior Notes
Debt Instrument [Line Items]
Stated interest rate	6.625%
Long-term debt, gross	$ 350.0	$ 350.0