Commitments and Contingencies - Schedule of Environmental Remediation Reserve Activity (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Environmental remediation reserve activity
Beginning remediation accrual balance	$ 2.4	$ 2.5	$ 2.7
Current period expenses	0.0	0.0	0.0
Cash expenditures	(0.3)	(0.1)	(0.2)
Ending remediation accrual balance	$ 2.1	$ 2.4	$ 2.5