Leases - Schedule of Maturity of Our Lease Liabilities (Details) $ in Millions	Dec. 31, 2020 USD ($)
Operating Leases
2021	$ 5.9
2022	5.0
2023	4.6
2024	4.2
2025	2.3
Thereafter	16.9
Total minimum lease payments	38.9
Less: interest	(8.9)
Present value	30.0
Finance Leases
2021	2.2
2022	2.0
2023	1.7
2024	1.2
2025	1.0
Thereafter	0.8
Total minimum lease payments	8.9
Less: interest	(0.8)
Present value	$ 8.1