Leases - Maturity of Leases After Adoption of ASC 842 (Details) $ in Millions	Mar. 31, 2019 USD ($)
Future Maturities of Operating Leases
Remainder of 2019	$ 32.9
2020	36.0
2021	24.7
2022	18.2
2023	14.0
2024 and thereafter	31.9
Total minimum payments	157.7
Less: present value discount	(26.9)
Operating lease, liability	130.8
Future Maturities of Finance Leases
Remainder of 2019	4.5
Finance Lease, Liability, Payments, Due Year Two	5.1
Finance Lease, Liability, Payments, Due Year Three	4.4
Finance Lease, Liability, Payments, Due Year Four	2.0
Finance Lease, Liability, Payments, Due Year Five	0.2
2024 and thereafter	0.0
Total minimum payments	16.2
Less: present value discount	(1.3)
Finance lease, liability	$ 14.9