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Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Loss Contingencies [Line Items]
Environmental remediation liabilities - discounted	$ 38.7	$ 39.2
Accrual for environmental loss contingencies - weighted-average discount rate	3.50%
Environmental remediation liabilities - undiscounted	$ 72.3	73.6
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	35.0
Other noncurrent liabilities
Loss Contingencies [Line Items]
Tax Indemnification Liability	$ 29.5	$ 30.5

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- Definition

Accrual For Environmental Loss Contingencies Undiscounted For Accruals Qualifying For Discounting

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- Definition

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- Definition

Potential future environmental remediation costs in excess of amounts already recorded.

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- Definition

Rate applied to the undiscounted amount of environmental loss contingencies to arrive at the present value recorded as of the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 30
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13207-110859

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.Y.Q1)
-URI http://asc.fasb.org/extlink&oid=27011672&loc=d3e149879-122751

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