 | srt:CommonTable | parent-child | http://fasb.org/srt/role/statement/CommonDomainMembers |
 | srt:CommonTable | hypercube-dimension | http://fasb.org/srt/role/statement/CommonDomainMembersCommonTable |
 | srt:RealEstateAndAccumulatedDepreciationByPropertyTable | parent-child | http://fasb.org/srt/role/disclosure/SECScheduleArticle12-28RealEstateAndAccumulatedDepreciation |
 | srt:RealEstateAndAccumulatedDepreciationByPropertyTable | hypercube-dimension | http://fasb.org/srt/role/disclosure/SECScheduleArticle12-28RealEstateAndAccumulatedDepreciationRealEstateAndAccumulatedDepreciationByPropertyTable |
 | srt:MortgageLoansOnRealEstateScheduleTable | parent-child | http://fasb.org/srt/role/disclosure/SECScheduleArticle12-29MortgageLoansOnRealEstate |
 | srt:MortgageLoansOnRealEstateScheduleTable | hypercube-dimension | http://fasb.org/srt/role/disclosure/SECScheduleArticle12-29MortgageLoansOnRealEstateMortgageLoansOnRealEstateScheduleTable |
 | srt:DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesTable | parent-child | http://fasb.org/srt/role/disclosure/ExtractiveIndustries |
 | srt:GasAndOilAcreageTable | parent-child | http://fasb.org/srt/role/disclosure/ExtractiveIndustries |
 | srt:AverageSalesPriceAndProductionCostsPerUnitOfProductionTable | parent-child | http://fasb.org/srt/role/disclosure/ExtractiveIndustries |
 | srt:DevelopmentWellsDrilledTable | parent-child | http://fasb.org/srt/role/disclosure/ExtractiveIndustries |
 | srt:ExploratoryWellsDrilledTable | parent-child | http://fasb.org/srt/role/disclosure/ExtractiveIndustries |
 | srt:OilAndGasInProcessActivitiesTable | parent-child | http://fasb.org/srt/role/disclosure/ExtractiveIndustries |
 | srt:ProductiveWellsTable | parent-child | http://fasb.org/srt/role/disclosure/ExtractiveIndustries |
 | srt:ProvedDevelopedAndUndevelopedOilAndGasReserveQuantitiesTable | parent-child | http://fasb.org/srt/role/disclosure/ExtractiveIndustries |
 | srt:AverageSalesPriceAndProductionCostsPerUnitOfProductionTable | hypercube-dimension | http://fasb.org/srt/role/disclosure/ExtractiveIndustriesAverageSalesPriceAndProductionCostsPerUnitOfProductionTable |
 | srt:DevelopmentWellsDrilledTable | hypercube-dimension | http://fasb.org/srt/role/disclosure/ExtractiveIndustriesDevelopmentWellsDrilledTable |
 | srt:DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesTable | hypercube-dimension | http://fasb.org/srt/role/disclosure/ExtractiveIndustriesDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesTable |
 | srt:ExploratoryWellsDrilledTable | hypercube-dimension | http://fasb.org/srt/role/disclosure/ExtractiveIndustriesExploratoryWellsDrilledTable |
 | srt:GasAndOilAcreageTable | hypercube-dimension | http://fasb.org/srt/role/disclosure/ExtractiveIndustriesGasAndOilAcreageTable |
 | srt:OilAndGasInProcessActivitiesTable | hypercube-dimension | http://fasb.org/srt/role/disclosure/ExtractiveIndustriesOilAndGasInProcessActivitiesTable |
 | srt:ProductiveWellsTable | hypercube-dimension | http://fasb.org/srt/role/disclosure/ExtractiveIndustriesProductiveWellsTable |
 | srt:ProvedDevelopedAndUndevelopedOilAndGasReserveQuantitiesTable | hypercube-dimension | http://fasb.org/srt/role/disclosure/ExtractiveIndustriesProvedDevelopedAndUndevelopedOilAndGasReserveQuantitiesTable |