| Name | PublicUtilitiesPropertyPlantAndEquipmentAbstract |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:stringItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | True |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Public Utilities, Property, Plant and Equipment [Abstract] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:ScheduleOfPublicUtilityPropertyPlantAndEquipmentTextBlock | parent-child | http://fasb.org/us-gaap/role/disclosure/RegulatedOperations | |
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService | parent-child | http://fasb.org/us-gaap/role/disclosure/RegulatedOperations | |
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentOriginalCostOfIntangibleUtilityPlants | parent-child | http://fasb.org/us-gaap/role/disclosure/RegulatedOperations | |
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentPlantAcquisitionAdjustmentsForIntangibleUtilityPlants | parent-child | http://fasb.org/us-gaap/role/disclosure/RegulatedOperations | |
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentPlantAdjustmentsForIntangibleUtilityPlants | parent-child | http://fasb.org/us-gaap/role/disclosure/RegulatedOperations | |
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentAmountOfAcquisitionAdjustments1 | parent-child | http://fasb.org/us-gaap/role/disclosure/RegulatedOperations | |
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentAmountOfAcquisitionAdjustmentsRelatedAccumulatedDepreciation1 | parent-child | http://fasb.org/us-gaap/role/disclosure/RegulatedOperations | |
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentPresentValueOfRegulatedAssetForPlantAbandonment | parent-child | http://fasb.org/us-gaap/role/disclosure/RegulatedOperations | |
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentAmountOfLossRecoveryOnPlantAbandonment | parent-child | http://fasb.org/us-gaap/role/disclosure/RegulatedOperations | |
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentAmountOfIndirectDisallowanceOfCostsOfRecentlyCompletedPlants | parent-child | http://fasb.org/us-gaap/role/disclosure/RegulatedOperations | |
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentAmountOfDisallowedCostsForRecentlyCompletedPlant | parent-child | http://fasb.org/us-gaap/role/disclosure/RegulatedOperations | |
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentAmountOfRemainderOfCostsOfDisallowedAssetsForRecentlyCompletedPlant | parent-child | http://fasb.org/us-gaap/role/disclosure/RegulatedOperations | |
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentAmortizationOfPresentValueOfRegulatedAssetForPlantAbandonment | parent-child | http://fasb.org/us-gaap/role/disclosure/RegulatedOperations | |
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentDescriptionOfElectricUtilityUseOfIntermediaryForPlantConstruction | parent-child | http://fasb.org/us-gaap/role/disclosure/RegulatedOperations | |
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentAmountOfInterestIncurredOnIntermediaryDebtForElectricUtilityPlantConstruction | parent-child | http://fasb.org/us-gaap/role/disclosure/RegulatedOperations | |
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentInterestRateOnIntermediaryDebtForElectricUtilityPlantConstruction | parent-child | http://fasb.org/us-gaap/role/disclosure/RegulatedOperations | |
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentAmountOfConstructionWorkInProcessIncludedInRateBase | parent-child | http://fasb.org/us-gaap/role/disclosure/RegulatedOperations |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:PublicUtilitiesDisclosureTextBlock | parent-child | http://fasb.org/us-gaap/role/disclosure/RegulatedOperations |