Leases - Maturities (Details) $ in Millions	Mar. 31, 2019 USD ($)
Operating Leases
2019	$ 12.4
2020	13.4
2021	10.7
2022	9.5
2023	8.7
Thereafter	28.1
Total lease payments	82.8
Less: amount of lease payments representing interest	(14.1)
Total present value of future lease payments	68.7
Finance Leases
2019	5.5
2020	6.5
2021	3.3
2022	2.2
2023	1.4
Thereafter	1.6
Total lease payments	20.5
Less: amount of lease payments representing interest	(1.4)
Total present value of future lease payments	$ 19.1