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cm:Concept: us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations
Standard label: Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Asset Retirement Obligations
Name: us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations
Documentation: Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from asset retirement obligations. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset.
Object type: cm:Concept
Data type: Monetary (xbrli:monetaryItemType)
Period type: As Of (instant)
Balance type: Debit
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations

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Labels
Label Role Language
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Asset Retirement Obligations http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 740 10 50 6 http://fasb.org/us-gaap/role/ref/legacyRef 740
FASB Accounting Standards Codification 740 10 50 8 http://fasb.org/us-gaap/role/ref/legacyRef 740
FASB Accounting Standards Codification 740 10 25 20 (b) http://fasb.org/us-gaap/role/ref/legacyRef 740

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