Leases - Schedule of Future Minimum Lease Payments for Operating and Finance Leases (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Leases, Operating [Abstract]
2021	$ 1.5
2022	1.1
2023	0.9
2024	0.9
2025	0.9
Thereafter	1.7
Total future minimum lease payments	7.0
Less: amount representing interest	(1.8)
Present value of future minimum lease payments	5.2
Less: current portion of operating lease obligations	(1.0)
Long-term portion of operating lease obligations	4.2	$ 4.5
Leases, Capital [Abstract]
2021	3.3
2022	1.2
2023	0.5
2024	0.1
Total future minimum lease payments	5.1
Less: amount representing interest	(0.4)
Present value of future minimum lease payments	4.7
Less: current portion of finance lease obligations	(3.0)	(5.1)
Long-term portion of finance lease obligations	$ 1.7	$ 3.6