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cm:Concept: us-gaap:AssetRetirementObligationAccretionExpense
Standard label: Asset Retirement Obligation, Accretion Expense
Name: us-gaap:AssetRetirementObligationAccretionExpense
Documentation: Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability.
Object type: cm:Concept
Data type: Monetary (xbrli:monetaryItemType)
Period type: For Period (duration)
Balance type: Debit
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:AssetRetirementObligationAccretionExpense

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Labels
Label Role Language
Asset Retirement Obligation, Accretion Expense http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 410 20 50 1 (c)(3) http://fasb.org/us-gaap/role/ref/legacyRef 410
FASB Accounting Standards Codification 410 20 45 1 http://fasb.org/us-gaap/role/ref/legacyRef 410

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Roll Up Relations
Part Of Roll Up:
us-gaap:AccretionExpenseIncludingAssetRetirementObligations