Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions |
Sep. 30, 2021 |
Dec. 31, 2020 |
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| Commitments and Contingencies Disclosure [Abstract] | ||
| Environmental obligations | $ 12.7 | $ 13.5 |
| Estimated amount recoverable | 5.0 | 5.6 |
| Asset retirement obligation | $ 56.7 | $ 53.2 |
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- Definition Total costs accrued as of the balance sheet date for environmental loss contingencies. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Carrying amount as of the balance sheet date of known and reasonably estimable amounts of recoveries from third-parties pertaining to an entity's environmental remediation obligations. An entity's balance sheet may include several assets that relate to an environmental remediation obligation. Among them are the following: a. Receivables from other potentially responsible parties that are not providing initial funding; b. anticipated recoveries from insurers; and c. anticipated recoveries from prior owners as a result of indemnification agreements. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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