Leases - Maturities of Lease Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Operating Leases
2021	$ 60.1
2022	39.2
2023	29.4
2024	16.1
2025	8.3
Thereafter	13.7
Total lease payments	166.8
Less imputed interest	(7.6)
Total operating lease liabilities	159.2	$ 58.1
Finance Leases
2021	1.8
2022	1.9
2023	1.9
2024	2.0
2025	2.0
Thereafter	16.7
Total lease payments	26.3
Less imputed interest	(9.1)
Total finance lease liabilities	$ 17.2	$ 17.9