Leases Leases, Maturity of Lease Liability (Details) $ in Millions	Dec. 31, 2019 USD ($)
Finance Leases
2020	$ 1.6
2021	1.4
2022	1.3
2023	1.2
2024	0.7
2025 and thereafter	1.3
Total minimum lease payments	7.5
Less: interest	(0.9)
Present value	6.6
Operating Leases
2020	5.4
2021	4.6
2022	3.8
2023	3.5
2024	3.3
2025 and thereafter	18.7
Total minimum lease payments	39.3
Less: interest	(10.2)
Present value	$ 29.1