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Capitalized Costs of Unproved Properties Excluded from Amortization, Cumulative [Abstract]

Name	CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulativeAbstract
Namespace	http://fasb.org/us-gaap/2020-01-31
Prefix	us-gaap
Data type	xbrli:stringItemType
Period type	duration
Substitution Group	xbrli:item
Balance	None
Nillable	True
Abstract	True

Labels

Text	Lang	Role	Container role
Capitalized Costs of Unproved Properties Excluded from Amortization, Cumulative [Abstract]	en-US	http://www.xbrl.org/2003/role/label	http://www.xbrl.org/2003/role/link

Related Child Concepts

	Name	Relation Type	Role
	Acquisition Costs, Cumulative `us-gaap:AcquisitionCostsCumulative`	parent-child	http://fasb.org/us-gaap/role/disclosure/ExtractiveIndustries
	Exploration Costs, Cumulative `us-gaap:ExplorationCostsCumulative`	parent-child	http://fasb.org/us-gaap/role/disclosure/ExtractiveIndustries
	Development Costs, Cumulative `us-gaap:DevelopmentCostsCumulative`	parent-child	http://fasb.org/us-gaap/role/disclosure/ExtractiveIndustries
	Production Costs, Cumulative `us-gaap:ProductionCostsCumulative`	parent-child	http://fasb.org/us-gaap/role/disclosure/ExtractiveIndustries
	Capitalized Costs of Unproved Properties Excluded from Amortization, Cumulative `us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative`	parent-child	http://fasb.org/us-gaap/role/disclosure/ExtractiveIndustries
	Acquisition Costs, Cumulative `us-gaap:AcquisitionCostsCumulative`	domain-member	http://fasb.org/us-gaap/role/disclosure/ExtractiveIndustriesCapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationTable
	Exploration Costs, Cumulative `us-gaap:ExplorationCostsCumulative`	domain-member	http://fasb.org/us-gaap/role/disclosure/ExtractiveIndustriesCapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationTable
	Development Costs, Cumulative `us-gaap:DevelopmentCostsCumulative`	domain-member	http://fasb.org/us-gaap/role/disclosure/ExtractiveIndustriesCapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationTable
	Production Costs, Cumulative `us-gaap:ProductionCostsCumulative`	domain-member	http://fasb.org/us-gaap/role/disclosure/ExtractiveIndustriesCapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationTable
	Capitalized Costs of Unproved Properties Excluded from Amortization, Cumulative `us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative`	domain-member	http://fasb.org/us-gaap/role/disclosure/ExtractiveIndustriesCapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationTable

Related Parent Concepts

	Name	Relation Type	Role
	Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items] `us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationLineItems`	parent-child	http://fasb.org/us-gaap/role/disclosure/ExtractiveIndustries
	Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items] `us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationLineItems`	domain-member	http://fasb.org/us-gaap/role/disclosure/ExtractiveIndustriesCapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationTable