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Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2020 | Dec. 31, 2019
Loss Contingencies [Line Items] |  |
Environmental remediation liabilities - discounted | $ 35.1 | $ 35.6
Accrual for environmental loss contingencies - weighted-average discount rate | 3.70% | 3.70%
Environmental remediation liabilities - undiscounted | $ 68.8 | $ 69.2
Minimum |  |
Loss Contingencies [Line Items] |  |
Potential revision on future environmental remediation costs before tax | 10.0 |
Maximum |  |
Loss Contingencies [Line Items] |  |
Potential revision on future environmental remediation costs before tax | 30.0 |
Other noncurrent liabilities |  |
Loss Contingencies [Line Items] |  |
Tax Indemnification Liability | $ 31.6 | $ 31.0

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