| Name | StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves |
|---|---|
| Namespace | http://fasb.org/srt/2020-01-31 |
| Prefix | srt |
| Data type | xbrli:monetaryItemType |
| Period type | instant |
| Substitution Group | xbrli:item |
| Balance | debit |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Total | en-US | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Beginning Balance | en-US | http://www.xbrl.org/2003/role/periodStartLabel | http://www.xbrl.org/2003/role/link |
| Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Ending Balance | en-US | http://www.xbrl.org/2003/role/periodEndLabel | http://www.xbrl.org/2003/role/link |
| Amount of discounted future accumulated cash inflow relating to proved oil and gas reserves. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| 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 | |
|---|---|---|---|
srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows | summation-item | http://fasb.org/srt/role/disclosure/SRTCalculations | |
srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows | summation-item | http://fasb.org/srt/role/disclosure/SRTCalculations |
| Name | Relation Type | Role | |
|---|---|---|---|
srt:IncreaseDecreaseInStandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesRollForward | parent-child | http://fasb.org/srt/role/disclosure/ExtractiveIndustries | |
srt:IncreaseDecreaseInStandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesRollForward | parent-child | http://fasb.org/srt/role/disclosure/ExtractiveIndustries | |
srt:DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesStandardizedMeasureAbstract | parent-child | http://fasb.org/srt/role/disclosure/ExtractiveIndustries | |
srt:IncreaseDecreaseInStandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesRollForward | domain-member | http://fasb.org/srt/role/disclosure/ExtractiveIndustriesDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesTable | |
srt:DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesStandardizedMeasureAbstract | domain-member | http://fasb.org/srt/role/disclosure/ExtractiveIndustriesDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesTable |