Leases - Maturities of Lease Liabilities (Details) $ in Millions	Dec. 31, 2019 USD ($)
Operating Leases
2020	$ 37.3
2021	38.7
2022	34.4
2023	31.4
2024	27.1
Thereafter	169.4
Total lease payments	338.3
Less: Interest	(103.0)
Present value of lease liabilities	235.4
Finance Leases
2020	12.7
2021	9.6
2022	9.2
2023	7.7
2024	22.4
Thereafter	62.3
Total lease payments	123.9
Less: Interest	(40.9)
Present value of lease liabilities	$ 83.0