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cm:Concept: us-gaap:IncreaseDecreaseInUnprovedOilAndGasProperty
Standard label: Increase (Decrease) in Unproved Oil and Gas Property
Name: us-gaap:IncreaseDecreaseInUnprovedOilAndGasProperty
Documentation: The increase (decrease) during the reporting period in the book value of property designated for oil and gas production that has not been found (through exploratory drilling) to have extractible reserves of oil and gas.
Object type: cm:Concept
Data type: Monetary (xbrli:monetaryItemType)
Period type: For Period (duration)
Balance type: Credit
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:IncreaseDecreaseInUnprovedOilAndGasProperty

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Labels
Label Role Language
Increase (Decrease) in Unproved Oil and Gas Property http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 230 10 45 28 (a) http://fasb.org/us-gaap/role/ref/legacyRef 230

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