 | srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows | parent-child | http://fasb.org/srt/role/disclosure/ExtractiveIndustries |
 | srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts | parent-child | http://fasb.org/srt/role/disclosure/ExtractiveIndustries |
 | srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts | parent-child | http://fasb.org/srt/role/disclosure/ExtractiveIndustries |
 | srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense | parent-child | http://fasb.org/srt/role/disclosure/ExtractiveIndustries |
 | srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows | parent-child | http://fasb.org/srt/role/disclosure/ExtractiveIndustries |
 | srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows | domain-member | http://fasb.org/srt/role/disclosure/ExtractiveIndustriesDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesTable |
 | srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts | domain-member | http://fasb.org/srt/role/disclosure/ExtractiveIndustriesDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesTable |
 | srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts | domain-member | http://fasb.org/srt/role/disclosure/ExtractiveIndustriesDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesTable |
 | srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense | domain-member | http://fasb.org/srt/role/disclosure/ExtractiveIndustriesDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesTable |
 | srt:FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows | domain-member | http://fasb.org/srt/role/disclosure/ExtractiveIndustriesDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesTable |