Leases - Maturity (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Operating Leases
2020	$ 62.1
2021	54.5
2022	46.6
2023	36.2
2024	29.0
Thereafter	74.5
Future minimum lease payments	302.9
Less: Interest	(46.7)
Present value of lease obligations	256.2
Finance Leases
2020	12.3
2021	12.0
2022	9.8
2023	7.8
2024	6.2
Thereafter	36.3
Total lease payments	84.4
Less: Interest	(20.3)
Present value of lease obligations	64.1	$ 66.7
2020	74.4
2021	66.5
2022	56.4
2023	44.0
2024	35.2
Thereafter	110.8
Total lease payments	387.3
Less: Interest	(67.0)
Present value of lease obligations	$ 320.3