Taxonomy Viewer

Name	ProvedOilAndGasReserveQuantitiesApplicableToLongTermSupplyAgreementsWithGovernmentsOrAuthorities
Namespace	http://fasb.org/srt/2020-01-31
Prefix	srt
Data type	num:volumeItemType
Period type	instant
Substitution Group	xbrli:item
Balance	None
Nillable	True
Abstract	False

Text	Lang	Role	Container role
Proved Oil and Gas Reserve Quantities Applicable to Long-term Supply Agreements with Governments or Authorities	en-US	http://www.xbrl.org/2003/role/label	http://www.xbrl.org/2003/role/link
Reserve quantities of oil and/or gas subject to purchase under long-term supply, purchase, or similar agreements and contracts with governments or authorities, as of the end of the period if the enterprise participates in the operation of the properties in which the oil or gas is located or otherwise serves as the producer of those reserves, as opposed, for example, to being an independent purchaser, broker, dealer or importer.	en-US	http://www.xbrl.org/2003/role/documentation	http://www.xbrl.org/2003/role/link

Name	Value	Role
TaxonomyVersion	2018	http://fasb.org/srt/role/changeNote/changeNote
ChangeDate	2017-08	http://fasb.org/srt/role/changeNote/changeNote
ModifiedReferences	true	http://fasb.org/srt/role/changeNote/changeNote
Publisher	FASB	http://www.xbrl.org/2003/role/disclosureRef
Name	Accounting Standards Codification	http://www.xbrl.org/2003/role/disclosureRef
Topic	932	http://www.xbrl.org/2003/role/disclosureRef
SubTopic	235	http://www.xbrl.org/2003/role/disclosureRef
Section	50	http://www.xbrl.org/2003/role/disclosureRef
Paragraph	7	http://www.xbrl.org/2003/role/disclosureRef
URI	http://asc.fasb.org/extlink&oid=68064819&loc=d3e61869-109447	http://www.xbrl.org/2003/role/disclosureRef
Publisher	SEC	http://www.xbrl.org/2003/role/disclosureRef
Name	Form 20-F	http://www.xbrl.org/2003/role/disclosureRef
Section	Item 18	http://www.xbrl.org/2003/role/disclosureRef
Subsection	Instruction 2	http://www.xbrl.org/2003/role/disclosureRef

	Name	Relation Type	Role
	Long-term Supply Agreements with Governments or Authorities [Abstract] `srt:LongTermSupplyAgreementsWithGovernmentsOrAuthoritiesAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/ExtractiveIndustries
	Long-term Supply Agreements with Governments or Authorities [Abstract] `srt:LongTermSupplyAgreementsWithGovernmentsOrAuthoritiesAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/ExtractiveIndustriesProvedDevelopedAndUndevelopedOilAndGasReserveQuantitiesTable