IndexSchedule of Capitalized Costs of Unproved Properties Excluded from Amortization [Table Text Block]
| Name | ScheduleOfCapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationTextBlock |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | nonnum:textBlockItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | False |
Labels
| Text | Lang | Role | Container role |
|---|---|---|---|
| Schedule of Capitalized Costs of Unproved Properties Excluded from Amortization [Table Text Block] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Tabular disclosure of the capitalized costs of unproved properties and major development projects that are excluded from capitalized costs being amortized. This includes the total costs excluded and, at a minimum, these categories of costs: acquisition costs, exploration costs, development costs in the case of significant development projects, and capitalized interest. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
References
| Name | Value | Role |
|---|---|---|
| SourceName | Reference Project:Taxonomy Technical Improvement | http://fasb.org/srt/role/changeNote/changeNote |
| TaxonomyVersion | 2019 | http://fasb.org/srt/role/changeNote/changeNote |
| ChangeDate | 2018-08 | 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 | 10 | http://www.xbrl.org/2003/role/disclosureRef |
| Section | S99 | http://www.xbrl.org/2003/role/disclosureRef |
| Paragraph | 1 | http://www.xbrl.org/2003/role/disclosureRef |
| Subparagraph | (SX 210.4-10(c)(7)(ii)) | http://www.xbrl.org/2003/role/disclosureRef |
| URI | http://asc.fasb.org/extlink&oid=120398226&loc=d3e511914-122862 | http://www.xbrl.org/2003/role/disclosureRef |
Related Child Concepts
| Name | Relation Type | Role | |
|---|---|---|---|
 | us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationTable | parent-child | http://fasb.org/us-gaap/role/disclosure/ExtractiveIndustries |
Related Parent Concepts
| Name | Relation Type | Role | |
|---|---|---|---|
| us-gaap:TableTextBlock | parent-child | http://fasb.org/us-gaap/role/disclosure/ComprehensiveTextBlockList |
| us-gaap:FullCostMethodOfAccountingForInvestmentsInOilAndGasPropertiesDisclosureTextBlock | parent-child | http://fasb.org/us-gaap/role/disclosure/ExtractiveIndustries |