Lease Arrangements (Schedule of Future Minimum Lease Commitments) (Details) $ in Millions	Dec. 31, 2018 USD ($)
Capital 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 capital lease obligations	14.1
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