Leases - Future Minimum Lease Payments (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Operating Leases
2021	$ 30.2
2022	23.5
2023	16.0
2024	10.5
2025	8.6
Thereafter	24.7
Total future minimum lease payments	113.5
Less: imputed interest	(10.8)
Total operating lease liabilities	102.7	$ 99.6
Finance Leases
2021	1.5
2022	1.3
2023	0.6
2024	0.3
2025	0.1
Thereafter	0.0
Total future minimum lease payments	3.8
Less: imputed interest	(0.1)
Total finance lease liabilities	$ 3.7	$ 3.4