Lease Arrangements (Schedule of Future Minimum Lease Commitments) (Details) $ in Millions	Dec. 31, 2018 USD ($)
Operating leases
2019	$ 18.5
2020	14.0
2021	10.5
2022	9.1
2023	7.2
Thereafter	23.2
Total minimum lease payments	82.5
Finance Leases
2019	7.3
2020	6.5
2021	3.3
2022	2.2
2023	1.4
Thereafter	1.6
Total minimum lease payments	22.3
Amounts representing interest	(1.6)
Present value of minimum lease payments	20.7
Current maturities	(6.6)
Long-term finance lease obligation	$ 14.1