| Type | including |
|---|---|
| Role | http://fasb.org/us-gaap/role/disclosure/ExtractiveIndustriesAverageSalesPriceAndProductionCostsPerUnitOfProductionTable |
| Type | Element |
|---|---|
| Hypercube | srt:AverageSalesPriceAndProductionCostsPerUnitOfProductionTable |
| Explicit | srt:ConsolidationItemsAxis |
| Member | srt:ConsolidationItemsDomain |
| Member | srt:ReportableGeographicalComponentsMember |
| Member | srt:GeographyEliminationsMember |
| Member | srt:ReportableLegalEntitiesMember |
| Member | srt:ConsolidationEliminationsMember |
| Explicit | srt:StatementGeographicalAxis |
| Member | srt:SegmentGeographicalDomain |
| Explicit | srt:EnergyAxis |
| Member | srt:EnergyDomain |
| Member | srt:FuelMember |
| Member | srt:CrudeOilMember |
| Member | srt:HeatingOilMember |
| Member | srt:CrudeOilAndNGLPerBarrelMember |
| Member | srt:NaturalGasPerThousandCubicFeetMember |