Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2020	Dec. 31, 2019
Environmental Contingency
Short-term environmental accrual	$ 6.6	$ 5.5
Environmental accrual	$ 18.2
Expected period related to remediation expenditures for environmental contingencies period	30 years
Potential increase in environmental costs	$ 11.6
Time period within which recorded estimate of its obligation may change	12 months
Comprehensive Environmental Response, Compensation and Liability Act
Environmental Contingency
Short-term environmental accrual	$ 1.9
Minimum
Environmental Contingency
Period for final feasibility study	12 months
Maximum
Environmental Contingency
Period for final feasibility study	24 months

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Total costs accrued as of the balance sheet date for environmental loss contingencies.

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Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable in twelve months or in the next operating cycle if longer.

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The difference between the maximum amount of estimated loss and the amount recorded as of the balance sheet date.

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