Leases - Maturity of Lease Liabilities (Details) $ in Millions	Mar. 31, 2020 USD ($)
Operating Leases
Remaining 2020	$ 41.4
2021	47.6
2022	40.5
2023	34.5
2024	30.3
Thereafter	103.1
Total lease payments	297.4
Less: Present value discount	(27.9)
Present value lease liabilities	269.5
Finance Leases
Remaining 2020	0.3
2021	0.2
2022	0.2
2023	0.2
2024	0.1
Thereafter	0.2
Total lease payments	1.2
Less: Present value discount	0.0
Present value lease liabilities	1.2
Total
Remaining 2020	41.7
2021	47.8
2022	40.7
2023	34.7
2024	30.4
Thereafter	103.3
Total lease payments	298.6
Less: Present value discount	(27.9)
Present value lease liabilities	$ 270.7