00003563092022FYfalseP1YP7YP5YP2YP3Yhttp://fasb.org/us-gaap/2022#UnregulatedOperatingRevenuehttp://fasb.org/us-gaap/2022#UnregulatedOperatingRevenuehttp://fasb.org/us-gaap/2022#UnregulatedOperatingRevenuehttp://fasb.org/us-gaap/2022#CostOfGoodsAndServicesSoldhttp://fasb.org/us-gaap/2022#CostOfGoodsAndServicesSoldhttp://fasb.org/us-gaap/2022#CostOfGoodsAndServicesSoldhttp://fasb.org/us-gaap/2022#Assetshttp://fasb.org/us-gaap/2022#LiabilitiesAndStockholdersEquityP7YP5Yhttp://fasb.org/us-gaap/2022#OtherNonoperatingIncomeExpenseP7YP5YP2YP7Yhttp://fasb.org/us-gaap/2022#PublicUtilitiesPropertyPlantAndEquipmentPlantInServicehttp://fasb.org/us-gaap/2022#PublicUtilitiesPropertyPlantAndEquipmentPlantInServicehttp://fasb.org/us-gaap/2022#LongTermDebtAndCapitalLeaseObligationsCurrenthttp://fasb.org/us-gaap/2022#LongTermDebtAndCapitalLeaseObligationsCurrenthttp://fasb.org/us-gaap/2022#LongTermDebtAndCapitalLeaseObligationshttp://fasb.org/us-gaap/2022#LongTermDebtAndCapitalLeaseObligationsP1Y00003563092021-10-012022-09-3000003563092022-03-31iso4217:USD00003563092022-11-14xbrli:shares00003563092020-10-012021-09-3000003563092019-10-012020-09-300000356309us-gaap:RegulatedOperationMember2021-10-012022-09-300000356309us-gaap:RegulatedOperationMember2020-10-012021-09-300000356309us-gaap:RegulatedOperationMember2019-10-012020-09-300000356309us-gaap:UnregulatedOperationMember2021-10-012022-09-300000356309us-gaap:UnregulatedOperationMember2020-10-012021-09-300000356309us-gaap:UnregulatedOperationMember2019-10-012020-09-30iso4217:USDxbrli:shares0000356309njr:UtilityPlantMember2021-10-012022-09-300000356309njr:UtilityPlantMember2020-10-012021-09-300000356309njr:UtilityPlantMember2019-10-012020-09-300000356309njr:SolarEquipmentMember2021-10-012022-09-300000356309njr:SolarEquipmentMember2020-10-012021-09-300000356309njr:SolarEquipmentMember2019-10-012020-09-300000356309njr:StorageAndTransportationAndOtherMember2021-10-012022-09-300000356309njr:StorageAndTransportationAndOtherMember2020-10-012021-09-300000356309njr:StorageAndTransportationAndOtherMember2019-10-012020-09-3000003563092021-09-3000003563092020-09-3000003563092019-09-3000003563092022-09-300000356309us-gaap:CommonStockMember2019-09-300000356309us-gaap:AdditionalPaidInCapitalMember2019-09-300000356309us-gaap:AccumulatedOtherComprehensiveIncomeMember2019-09-300000356309njr:TreasuryStockAndOtherMember2019-09-300000356309us-gaap:RetainedEarningsMember2019-09-300000356309us-gaap:RetainedEarningsMember2019-10-012020-09-300000356309us-gaap:AccumulatedOtherComprehensiveIncomeMember2019-10-012020-09-300000356309us-gaap:CommonStockMember2019-10-012020-09-300000356309us-gaap:AdditionalPaidInCapitalMember2019-10-012020-09-300000356309njr:TreasuryStockAndOtherMember2019-10-012020-09-300000356309us-gaap:CommonStockMember2020-09-300000356309us-gaap:AdditionalPaidInCapitalMember2020-09-300000356309us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-09-300000356309njr:TreasuryStockAndOtherMember2020-09-300000356309us-gaap:RetainedEarningsMember2020-09-300000356309us-gaap:RetainedEarningsMember2020-10-012021-09-300000356309us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-10-012021-09-300000356309us-gaap:AdditionalPaidInCapitalMember2020-10-012021-09-300000356309us-gaap:CommonStockMember2020-10-012021-09-300000356309njr:TreasuryStockAndOtherMember2020-10-012021-09-300000356309us-gaap:CommonStockMember2021-09-300000356309us-gaap:AdditionalPaidInCapitalMember2021-09-300000356309us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-09-300000356309njr:TreasuryStockAndOtherMember2021-09-300000356309us-gaap:RetainedEarningsMember2021-09-300000356309us-gaap:RetainedEarningsMember2021-10-012022-09-300000356309us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-10-012022-09-300000356309us-gaap:CommonStockMember2021-10-012022-09-300000356309us-gaap:AdditionalPaidInCapitalMember2021-10-012022-09-300000356309njr:TreasuryStockAndOtherMember2021-10-012022-09-300000356309us-gaap:CommonStockMember2022-09-300000356309us-gaap:AdditionalPaidInCapitalMember2022-09-300000356309us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-09-300000356309njr:TreasuryStockAndOtherMember2022-09-300000356309us-gaap:RetainedEarningsMember2022-09-300000356309njr:NjngMember2021-10-012022-09-30njr:customer0000356309njr:SteckmanRidgeMember2022-09-30xbrli:pure0000356309njr:PennEastMember2022-09-300000356309njr:NJRRetailHoldingsCorporationMember2021-10-012022-09-30njr:subsidiary0000356309njr:EnergyServicesMember2021-10-012022-09-300000356309njr:EnergyServicesMember2022-09-300000356309srt:MinimumMember2021-10-012022-09-300000356309srt:MaximumMember2021-10-012022-09-300000356309njr:NjresMember2021-10-012022-09-300000356309njr:NjresMember2020-10-012021-09-300000356309njr:NjresMember2019-10-012020-09-300000356309njr:NjngMember2020-10-012021-09-300000356309njr:NjngMember2019-10-012020-09-3000003563092020-12-310000356309us-gaap:GasDistributionMembersrt:MinimumMemberus-gaap:RegulatedOperationMember2021-10-012022-09-300000356309us-gaap:GasDistributionMemberus-gaap:RegulatedOperationMembersrt:MaximumMember2021-10-012022-09-300000356309us-gaap:GasDistributionMemberus-gaap:RegulatedOperationMember2022-09-300000356309us-gaap:GasDistributionMemberus-gaap:RegulatedOperationMember2021-09-300000356309srt:MinimumMemberus-gaap:GasTransmissionMemberus-gaap:RegulatedOperationMember2021-10-012022-09-300000356309us-gaap:GasTransmissionMemberus-gaap:RegulatedOperationMembersrt:MaximumMember2021-10-012022-09-300000356309us-gaap:GasTransmissionMemberus-gaap:RegulatedOperationMember2022-09-300000356309us-gaap:GasTransmissionMemberus-gaap:RegulatedOperationMember2021-09-300000356309srt:MinimumMemberus-gaap:RegulatedOperationMembernjr:StorageFacilitiesMember2021-10-012022-09-300000356309us-gaap:RegulatedOperationMembersrt:MaximumMembernjr:StorageFacilitiesMember2021-10-012022-09-300000356309us-gaap:RegulatedOperationMembernjr:StorageFacilitiesMember2022-09-300000356309us-gaap:RegulatedOperationMembernjr:StorageFacilitiesMember2021-09-300000356309srt:MinimumMemberus-gaap:UnregulatedOperationMembernjr:SolarPropertyMember2021-10-012022-09-300000356309us-gaap:UnregulatedOperationMembernjr:SolarPropertyMembersrt:MaximumMember2021-10-012022-09-300000356309us-gaap:UnregulatedOperationMembernjr:SolarPropertyMember2022-09-300000356309us-gaap:UnregulatedOperationMembernjr:SolarPropertyMember2021-09-300000356309srt:MinimumMemberus-gaap:UnregulatedOperationMembernjr:MidstreamPropertyMember2021-10-012022-09-300000356309us-gaap:UnregulatedOperationMembersrt:MaximumMembernjr:MidstreamPropertyMember2021-10-012022-09-300000356309us-gaap:UnregulatedOperationMembernjr:MidstreamPropertyMember2022-09-300000356309us-gaap:UnregulatedOperationMembernjr:MidstreamPropertyMember2021-09-300000356309us-gaap:PropertyPlantAndEquipmentOtherTypesMembersrt:MinimumMemberus-gaap:UnregulatedOperationMember2021-10-012022-09-300000356309us-gaap:PropertyPlantAndEquipmentOtherTypesMemberus-gaap:UnregulatedOperationMembersrt:MaximumMember2021-10-012022-09-300000356309us-gaap:PropertyPlantAndEquipmentOtherTypesMemberus-gaap:UnregulatedOperationMember2022-09-300000356309us-gaap:PropertyPlantAndEquipmentOtherTypesMemberus-gaap:UnregulatedOperationMember2021-09-300000356309us-gaap:ConstructionInProgressMemberus-gaap:UnregulatedOperationMember2022-09-300000356309us-gaap:ConstructionInProgressMemberus-gaap:UnregulatedOperationMember2021-09-300000356309us-gaap:UnregulatedOperationMembernjr:StorageAndTransportationPropertyBaseGasMember2022-09-300000356309us-gaap:UnregulatedOperationMembernjr:StorageAndTransportationPropertyBaseGasMember2021-09-300000356309njr:AdelphiaMember2021-10-012022-09-300000356309njr:AdelphiaMember2020-10-012021-09-300000356309njr:AdelphiaMember2019-10-012020-09-300000356309njr:SevenYearTreasuryRateMember2021-10-012022-09-300000356309us-gaap:FinancialAssetNotPastDueMember2022-09-300000356309us-gaap:FinancialAssetNotPastDueMember2021-09-300000356309njr:NaturalGasDistributionMember2022-09-30utr:Bcf0000356309njr:NaturalGasDistributionMember2021-09-300000356309njr:EnergyServicesMember2021-09-300000356309us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2021-10-012022-09-300000356309us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2020-10-012021-09-300000356309njr:UtilityPlantAtCostMember2022-09-300000356309njr:UtilityPlantAtCostMember2021-09-300000356309us-gaap:ConstructionInProgressMemberus-gaap:RegulatedOperationMember2022-09-300000356309us-gaap:ConstructionInProgressMemberus-gaap:RegulatedOperationMember2021-09-300000356309us-gaap:OtherCapitalizedPropertyPlantAndEquipmentMember2022-09-300000356309us-gaap:OtherCapitalizedPropertyPlantAndEquipmentMember2021-09-300000356309us-gaap:ConstructionInProgressMemberus-gaap:UnregulatedOperationMember2022-09-300000356309us-gaap:ConstructionInProgressMemberus-gaap:UnregulatedOperationMember2021-09-300000356309njr:AccumulatedDepreciationAndAmortizationUtilityPlantMember2022-09-300000356309njr:AccumulatedDepreciationAndAmortizationUtilityPlantMember2021-09-300000356309njr:AccumulatedDepreciationAndAmortizationNonutilityPlantAndEquipmentMember2022-09-300000356309njr:AccumulatedDepreciationAndAmortizationNonutilityPlantAndEquipmentMember2021-09-300000356309us-gaap:OtherOperatingIncomeExpenseMember2021-10-012022-09-300000356309us-gaap:OtherOperatingIncomeExpenseMember2020-10-012021-09-300000356309njr:DepreciationDepletionAndAmortizationMember2021-10-012022-09-300000356309njr:DepreciationDepletionAndAmortizationMember2020-10-012021-09-300000356309njr:NjngMembersrt:MinimumMember2021-10-012022-09-300000356309njr:NjngMembersrt:MaximumMember2021-10-012022-09-300000356309njr:CleanEnergyVenturesMember2021-10-012022-09-300000356309njr:CleanEnergyVenturesMember2020-10-012021-09-300000356309njr:CleanEnergyVenturesMember2019-10-012020-09-300000356309srt:MinimumMembernjr:CleanEnergyVenturesMember2021-10-012022-09-300000356309srt:MaximumMembernjr:CleanEnergyVenturesMember2021-10-012022-09-30njr:plan0000356309us-gaap:PensionPlansDefinedBenefitMember2021-10-012022-09-300000356309us-gaap:PensionPlansDefinedBenefitMember2020-10-012021-09-300000356309us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-10-012022-09-300000356309us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2020-10-012021-09-300000356309us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2020-09-300000356309us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2020-09-300000356309us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2020-10-012021-09-300000356309us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2021-09-300000356309us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2021-09-300000356309us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2021-10-012022-09-300000356309us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2022-09-300000356309us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2022-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasUtilityMembernjr:NaturalGasDistributionMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasUtilityMembernjr:CleanEnergyVenturesMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasUtilityMembernjr:EnergyServicesMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasUtilityMembernjr:StorageAndTransportationMember2021-10-012022-09-300000356309njr:HomeServicesandOtherMembernjr:NaturalGasUtilityMemberus-gaap:CorporateNonSegmentMember2021-10-012022-09-300000356309njr:NaturalGasUtilityMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMembernjr:WholesaleNaturalGasMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:WholesaleNaturalGasMembernjr:CleanEnergyVenturesMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMembernjr:WholesaleNaturalGasMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:WholesaleNaturalGasMembernjr:StorageAndTransportationMember2021-10-012022-09-300000356309njr:HomeServicesandOtherMemberus-gaap:CorporateNonSegmentMembernjr:WholesaleNaturalGasMember2021-10-012022-09-300000356309njr:WholesaleNaturalGasMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:ServiceContractsMembernjr:NaturalGasDistributionMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:ServiceContractsMembernjr:CleanEnergyVenturesMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:ServiceContractsMembernjr:EnergyServicesMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:ServiceContractsMembernjr:StorageAndTransportationMember2021-10-012022-09-300000356309njr:ServiceContractsMembernjr:HomeServicesandOtherMemberus-gaap:CorporateNonSegmentMember2021-10-012022-09-300000356309njr:ServiceContractsMember2021-10-012022-09-300000356309njr:InstallationandMaintenanceMemberus-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMember2021-10-012022-09-300000356309njr:InstallationandMaintenanceMemberus-gaap:OperatingSegmentsMembernjr:CleanEnergyVenturesMember2021-10-012022-09-300000356309njr:InstallationandMaintenanceMemberus-gaap:OperatingSegmentsMembernjr:EnergyServicesMember2021-10-012022-09-300000356309njr:InstallationandMaintenanceMemberus-gaap:OperatingSegmentsMembernjr:StorageAndTransportationMember2021-10-012022-09-300000356309njr:InstallationandMaintenanceMembernjr:HomeServicesandOtherMemberus-gaap:CorporateNonSegmentMember2021-10-012022-09-300000356309njr:InstallationandMaintenanceMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMembernjr:RenewableEnergyCertificatesMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:RenewableEnergyCertificatesMembernjr:CleanEnergyVenturesMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMembernjr:RenewableEnergyCertificatesMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:RenewableEnergyCertificatesMembernjr:StorageAndTransportationMember2021-10-012022-09-300000356309njr:HomeServicesandOtherMemberus-gaap:CorporateNonSegmentMembernjr:RenewableEnergyCertificatesMember2021-10-012022-09-300000356309njr:RenewableEnergyCertificatesMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMemberus-gaap:ElectricityMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:CleanEnergyVenturesMemberus-gaap:ElectricityMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMemberus-gaap:ElectricityMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:StorageAndTransportationMemberus-gaap:ElectricityMember2021-10-012022-09-300000356309njr:HomeServicesandOtherMemberus-gaap:CorporateNonSegmentMemberus-gaap:ElectricityMember2021-10-012022-09-300000356309us-gaap:ElectricityMember2021-10-012022-09-300000356309srt:ConsolidationEliminationsMembernjr:NaturalGasDistributionMember2021-10-012022-09-300000356309srt:ConsolidationEliminationsMembernjr:CleanEnergyVenturesMember2021-10-012022-09-300000356309srt:ConsolidationEliminationsMembernjr:EnergyServicesMember2021-10-012022-09-300000356309srt:ConsolidationEliminationsMembernjr:StorageAndTransportationMember2021-10-012022-09-300000356309srt:ConsolidationEliminationsMembernjr:HomeServicesandOtherMember2021-10-012022-09-300000356309srt:ConsolidationEliminationsMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:CleanEnergyVenturesMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:StorageAndTransportationMember2021-10-012022-09-300000356309njr:HomeServicesandOtherMemberus-gaap:CorporateNonSegmentMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasUtilityMembernjr:NaturalGasDistributionMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasUtilityMembernjr:CleanEnergyVenturesMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasUtilityMembernjr:EnergyServicesMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasUtilityMembernjr:StorageAndTransportationMember2020-10-012021-09-300000356309njr:HomeServicesandOtherMembernjr:NaturalGasUtilityMemberus-gaap:CorporateNonSegmentMember2020-10-012021-09-300000356309njr:NaturalGasUtilityMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMembernjr:WholesaleNaturalGasMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:WholesaleNaturalGasMembernjr:CleanEnergyVenturesMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMembernjr:WholesaleNaturalGasMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:WholesaleNaturalGasMembernjr:StorageAndTransportationMember2020-10-012021-09-300000356309njr:HomeServicesandOtherMemberus-gaap:CorporateNonSegmentMembernjr:WholesaleNaturalGasMember2020-10-012021-09-300000356309njr:WholesaleNaturalGasMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:ServiceContractsMembernjr:NaturalGasDistributionMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:ServiceContractsMembernjr:CleanEnergyVenturesMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:ServiceContractsMembernjr:EnergyServicesMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:ServiceContractsMembernjr:StorageAndTransportationMember2020-10-012021-09-300000356309njr:ServiceContractsMembernjr:HomeServicesandOtherMemberus-gaap:CorporateNonSegmentMember2020-10-012021-09-300000356309njr:ServiceContractsMember2020-10-012021-09-300000356309njr:InstallationandMaintenanceMemberus-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMember2020-10-012021-09-300000356309njr:InstallationandMaintenanceMemberus-gaap:OperatingSegmentsMembernjr:CleanEnergyVenturesMember2020-10-012021-09-300000356309njr:InstallationandMaintenanceMemberus-gaap:OperatingSegmentsMembernjr:EnergyServicesMember2020-10-012021-09-300000356309njr:InstallationandMaintenanceMemberus-gaap:OperatingSegmentsMembernjr:StorageAndTransportationMember2020-10-012021-09-300000356309njr:InstallationandMaintenanceMembernjr:HomeServicesandOtherMemberus-gaap:CorporateNonSegmentMember2020-10-012021-09-300000356309njr:InstallationandMaintenanceMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMembernjr:RenewableEnergyCertificatesMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:RenewableEnergyCertificatesMembernjr:CleanEnergyVenturesMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMembernjr:RenewableEnergyCertificatesMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:RenewableEnergyCertificatesMembernjr:StorageAndTransportationMember2020-10-012021-09-300000356309njr:HomeServicesandOtherMemberus-gaap:CorporateNonSegmentMembernjr:RenewableEnergyCertificatesMember2020-10-012021-09-300000356309njr:RenewableEnergyCertificatesMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMemberus-gaap:ElectricityMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:CleanEnergyVenturesMemberus-gaap:ElectricityMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMemberus-gaap:ElectricityMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:StorageAndTransportationMemberus-gaap:ElectricityMember2020-10-012021-09-300000356309njr:HomeServicesandOtherMemberus-gaap:CorporateNonSegmentMemberus-gaap:ElectricityMember2020-10-012021-09-300000356309us-gaap:ElectricityMember2020-10-012021-09-300000356309srt:ConsolidationEliminationsMembernjr:NaturalGasDistributionMember2020-10-012021-09-300000356309srt:ConsolidationEliminationsMembernjr:CleanEnergyVenturesMember2020-10-012021-09-300000356309srt:ConsolidationEliminationsMembernjr:EnergyServicesMember2020-10-012021-09-300000356309srt:ConsolidationEliminationsMembernjr:StorageAndTransportationMember2020-10-012021-09-300000356309srt:ConsolidationEliminationsMembernjr:HomeServicesandOtherMember2020-10-012021-09-300000356309srt:ConsolidationEliminationsMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:CleanEnergyVenturesMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:StorageAndTransportationMember2020-10-012021-09-300000356309njr:HomeServicesandOtherMemberus-gaap:CorporateNonSegmentMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasUtilityMembernjr:NaturalGasDistributionMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasUtilityMembernjr:CleanEnergyVenturesMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasUtilityMembernjr:EnergyServicesMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasUtilityMembernjr:StorageAndTransportationMember2019-10-012020-09-300000356309njr:HomeServicesandOtherMembernjr:NaturalGasUtilityMemberus-gaap:CorporateNonSegmentMember2019-10-012020-09-300000356309njr:NaturalGasUtilityMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMembernjr:WholesaleNaturalGasMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:WholesaleNaturalGasMembernjr:CleanEnergyVenturesMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMembernjr:WholesaleNaturalGasMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:WholesaleNaturalGasMembernjr:StorageAndTransportationMember2019-10-012020-09-300000356309njr:HomeServicesandOtherMemberus-gaap:CorporateNonSegmentMembernjr:WholesaleNaturalGasMember2019-10-012020-09-300000356309njr:WholesaleNaturalGasMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:ServiceContractsMembernjr:NaturalGasDistributionMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:ServiceContractsMembernjr:CleanEnergyVenturesMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:ServiceContractsMembernjr:EnergyServicesMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:ServiceContractsMembernjr:StorageAndTransportationMember2019-10-012020-09-300000356309njr:ServiceContractsMembernjr:HomeServicesandOtherMemberus-gaap:CorporateNonSegmentMember2019-10-012020-09-300000356309njr:ServiceContractsMember2019-10-012020-09-300000356309njr:InstallationandMaintenanceMemberus-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMember2019-10-012020-09-300000356309njr:InstallationandMaintenanceMemberus-gaap:OperatingSegmentsMembernjr:CleanEnergyVenturesMember2019-10-012020-09-300000356309njr:InstallationandMaintenanceMemberus-gaap:OperatingSegmentsMembernjr:EnergyServicesMember2019-10-012020-09-300000356309njr:InstallationandMaintenanceMemberus-gaap:OperatingSegmentsMembernjr:StorageAndTransportationMember2019-10-012020-09-300000356309njr:InstallationandMaintenanceMembernjr:HomeServicesandOtherMemberus-gaap:CorporateNonSegmentMember2019-10-012020-09-300000356309njr:InstallationandMaintenanceMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMembernjr:RenewableEnergyCertificatesMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:RenewableEnergyCertificatesMembernjr:CleanEnergyVenturesMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMembernjr:RenewableEnergyCertificatesMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:RenewableEnergyCertificatesMembernjr:StorageAndTransportationMember2019-10-012020-09-300000356309njr:HomeServicesandOtherMemberus-gaap:CorporateNonSegmentMembernjr:RenewableEnergyCertificatesMember2019-10-012020-09-300000356309njr:RenewableEnergyCertificatesMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMemberus-gaap:ElectricityMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:CleanEnergyVenturesMemberus-gaap:ElectricityMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMemberus-gaap:ElectricityMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:StorageAndTransportationMemberus-gaap:ElectricityMember2019-10-012020-09-300000356309njr:HomeServicesandOtherMemberus-gaap:CorporateNonSegmentMemberus-gaap:ElectricityMember2019-10-012020-09-300000356309us-gaap:ElectricityMember2019-10-012020-09-300000356309srt:ConsolidationEliminationsMembernjr:NaturalGasDistributionMember2019-10-012020-09-300000356309srt:ConsolidationEliminationsMembernjr:CleanEnergyVenturesMember2019-10-012020-09-300000356309srt:ConsolidationEliminationsMembernjr:EnergyServicesMember2019-10-012020-09-300000356309srt:ConsolidationEliminationsMembernjr:StorageAndTransportationMember2019-10-012020-09-300000356309srt:ConsolidationEliminationsMembernjr:HomeServicesandOtherMember2019-10-012020-09-300000356309srt:ConsolidationEliminationsMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:CleanEnergyVenturesMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:StorageAndTransportationMember2019-10-012020-09-300000356309njr:HomeServicesandOtherMemberus-gaap:CorporateNonSegmentMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMembernjr:ResidentialMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:ResidentialMembernjr:CleanEnergyVenturesMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMembernjr:ResidentialMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:ResidentialMembernjr:StorageAndTransportationMember2021-10-012022-09-300000356309us-gaap:CorporateNonSegmentMembernjr:ResidentialMember2021-10-012022-09-300000356309njr:ResidentialMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMembernjr:CommercialandIndustrialMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:CommercialandIndustrialMembernjr:CleanEnergyVenturesMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMembernjr:CommercialandIndustrialMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:CommercialandIndustrialMembernjr:StorageAndTransportationMember2021-10-012022-09-300000356309us-gaap:CorporateNonSegmentMembernjr:CommercialandIndustrialMember2021-10-012022-09-300000356309njr:CommercialandIndustrialMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMembernjr:FirmTransportationMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:FirmTransportationMembernjr:CleanEnergyVenturesMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMembernjr:FirmTransportationMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:FirmTransportationMembernjr:StorageAndTransportationMember2021-10-012022-09-300000356309us-gaap:CorporateNonSegmentMembernjr:FirmTransportationMember2021-10-012022-09-300000356309njr:FirmTransportationMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:InterruptibleandOfftariffMembernjr:NaturalGasDistributionMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:InterruptibleandOfftariffMembernjr:CleanEnergyVenturesMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMembernjr:InterruptibleandOfftariffMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:InterruptibleandOfftariffMembernjr:StorageAndTransportationMember2021-10-012022-09-300000356309us-gaap:CorporateNonSegmentMembernjr:InterruptibleandOfftariffMember2021-10-012022-09-300000356309njr:InterruptibleandOfftariffMember2021-10-012022-09-300000356309us-gaap:CorporateNonSegmentMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMembernjr:ResidentialMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:ResidentialMembernjr:CleanEnergyVenturesMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMembernjr:ResidentialMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:ResidentialMembernjr:StorageAndTransportationMember2020-10-012021-09-300000356309us-gaap:CorporateNonSegmentMembernjr:ResidentialMember2020-10-012021-09-300000356309njr:ResidentialMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMembernjr:CommercialandIndustrialMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:CommercialandIndustrialMembernjr:CleanEnergyVenturesMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMembernjr:CommercialandIndustrialMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:CommercialandIndustrialMembernjr:StorageAndTransportationMember2020-10-012021-09-300000356309us-gaap:CorporateNonSegmentMembernjr:CommercialandIndustrialMember2020-10-012021-09-300000356309njr:CommercialandIndustrialMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMembernjr:FirmTransportationMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:FirmTransportationMembernjr:CleanEnergyVenturesMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMembernjr:FirmTransportationMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:FirmTransportationMembernjr:StorageAndTransportationMember2020-10-012021-09-300000356309us-gaap:CorporateNonSegmentMembernjr:FirmTransportationMember2020-10-012021-09-300000356309njr:FirmTransportationMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:InterruptibleandOfftariffMembernjr:NaturalGasDistributionMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:InterruptibleandOfftariffMembernjr:CleanEnergyVenturesMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMembernjr:InterruptibleandOfftariffMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:InterruptibleandOfftariffMembernjr:StorageAndTransportationMember2020-10-012021-09-300000356309us-gaap:CorporateNonSegmentMembernjr:InterruptibleandOfftariffMember2020-10-012021-09-300000356309njr:InterruptibleandOfftariffMember2020-10-012021-09-300000356309us-gaap:CorporateNonSegmentMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMembernjr:ResidentialMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:ResidentialMembernjr:CleanEnergyVenturesMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMembernjr:ResidentialMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:ResidentialMembernjr:StorageAndTransportationMember2019-10-012020-09-300000356309us-gaap:CorporateNonSegmentMembernjr:ResidentialMember2019-10-012020-09-300000356309njr:ResidentialMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMembernjr:CommercialandIndustrialMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:CommercialandIndustrialMembernjr:CleanEnergyVenturesMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMembernjr:CommercialandIndustrialMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:CommercialandIndustrialMembernjr:StorageAndTransportationMember2019-10-012020-09-300000356309us-gaap:CorporateNonSegmentMembernjr:CommercialandIndustrialMember2019-10-012020-09-300000356309njr:CommercialandIndustrialMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMembernjr:FirmTransportationMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:FirmTransportationMembernjr:CleanEnergyVenturesMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMembernjr:FirmTransportationMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:FirmTransportationMembernjr:StorageAndTransportationMember2019-10-012020-09-300000356309us-gaap:CorporateNonSegmentMembernjr:FirmTransportationMember2019-10-012020-09-300000356309njr:FirmTransportationMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:InterruptibleandOfftariffMembernjr:NaturalGasDistributionMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:InterruptibleandOfftariffMembernjr:CleanEnergyVenturesMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMembernjr:InterruptibleandOfftariffMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:InterruptibleandOfftariffMembernjr:StorageAndTransportationMember2019-10-012020-09-300000356309us-gaap:CorporateNonSegmentMembernjr:InterruptibleandOfftariffMember2019-10-012020-09-300000356309njr:InterruptibleandOfftariffMember2019-10-012020-09-300000356309us-gaap:CorporateNonSegmentMember2019-10-012020-09-300000356309us-gaap:BilledRevenuesMember2020-09-300000356309us-gaap:UnbilledRevenuesMember2020-09-300000356309us-gaap:BilledRevenuesMember2020-10-012021-09-300000356309us-gaap:UnbilledRevenuesMember2020-10-012021-09-300000356309us-gaap:BilledRevenuesMember2021-09-300000356309us-gaap:UnbilledRevenuesMember2021-09-300000356309us-gaap:BilledRevenuesMember2021-10-012022-09-300000356309us-gaap:UnbilledRevenuesMember2021-10-012022-09-300000356309us-gaap:BilledRevenuesMember2022-09-300000356309us-gaap:UnbilledRevenuesMember2022-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMemberus-gaap:BilledRevenuesMember2022-09-300000356309us-gaap:OperatingSegmentsMemberus-gaap:BilledRevenuesMembernjr:CleanEnergyVenturesMember2022-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMemberus-gaap:BilledRevenuesMember2022-09-300000356309us-gaap:OperatingSegmentsMemberus-gaap:BilledRevenuesMembernjr:StorageAndTransportationMember2022-09-300000356309us-gaap:CorporateNonSegmentMemberus-gaap:BilledRevenuesMember2022-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMemberus-gaap:UnbilledRevenuesMember2022-09-300000356309us-gaap:OperatingSegmentsMemberus-gaap:UnbilledRevenuesMembernjr:CleanEnergyVenturesMember2022-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMemberus-gaap:UnbilledRevenuesMember2022-09-300000356309us-gaap:OperatingSegmentsMemberus-gaap:UnbilledRevenuesMembernjr:StorageAndTransportationMember2022-09-300000356309us-gaap:CorporateNonSegmentMemberus-gaap:UnbilledRevenuesMember2022-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMember2022-09-300000356309us-gaap:OperatingSegmentsMembernjr:CleanEnergyVenturesMember2022-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMember2022-09-300000356309us-gaap:OperatingSegmentsMembernjr:StorageAndTransportationMember2022-09-300000356309us-gaap:CorporateNonSegmentMember2022-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMemberus-gaap:BilledRevenuesMember2021-09-300000356309us-gaap:OperatingSegmentsMemberus-gaap:BilledRevenuesMembernjr:CleanEnergyVenturesMember2021-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMemberus-gaap:BilledRevenuesMember2021-09-300000356309us-gaap:OperatingSegmentsMemberus-gaap:BilledRevenuesMembernjr:StorageAndTransportationMember2021-09-300000356309us-gaap:CorporateNonSegmentMemberus-gaap:BilledRevenuesMember2021-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMemberus-gaap:UnbilledRevenuesMember2021-09-300000356309us-gaap:OperatingSegmentsMemberus-gaap:UnbilledRevenuesMembernjr:CleanEnergyVenturesMember2021-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMemberus-gaap:UnbilledRevenuesMember2021-09-300000356309us-gaap:OperatingSegmentsMemberus-gaap:UnbilledRevenuesMembernjr:StorageAndTransportationMember2021-09-300000356309us-gaap:CorporateNonSegmentMemberus-gaap:UnbilledRevenuesMember2021-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMember2021-09-300000356309us-gaap:OperatingSegmentsMembernjr:CleanEnergyVenturesMember2021-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMember2021-09-300000356309us-gaap:OperatingSegmentsMembernjr:StorageAndTransportationMember2021-09-300000356309us-gaap:CorporateNonSegmentMember2021-09-300000356309njr:BaseRateStipulationMember2021-10-012022-09-300000356309njr:NjngMembernjr:NewJerseyCleanEnergyProgramMember2022-09-300000356309njr:NjngMembernjr:NewJerseyCleanEnergyProgramMember2021-09-300000356309njr:NjngMembernjr:ConservationIncentiveProgramMember2022-09-300000356309njr:NjngMembernjr:ConservationIncentiveProgramMember2021-09-300000356309njr:NjngMemberus-gaap:OtherRegulatoryAssetsLiabilitiesMember2022-09-300000356309njr:NjngMemberus-gaap:OtherRegulatoryAssetsLiabilitiesMember2021-09-300000356309njr:NjngMember2022-09-300000356309njr:NjngMember2021-09-300000356309njr:NjngMembernjr:EnviromentalRemediationCostsExpendedNetOfRecoveriesMember2022-09-300000356309njr:NjngMembernjr:EnviromentalRemediationCostsExpendedNetOfRecoveriesMember2021-09-300000356309njr:NjngMemberus-gaap:EnvironmentalRestorationCostsMember2022-09-300000356309njr:NjngMemberus-gaap:EnvironmentalRestorationCostsMember2021-09-300000356309njr:NjngMemberus-gaap:DeferredIncomeTaxChargesMember2022-09-300000356309njr:NjngMemberus-gaap:DeferredIncomeTaxChargesMember2021-09-300000356309njr:NjngMemberus-gaap:RenewableEnergyProgramMember2022-09-300000356309njr:NjngMemberus-gaap:RenewableEnergyProgramMember2021-09-300000356309njr:NjngMemberus-gaap:PensionAndOtherPostretirementPlansCostsMember2022-09-300000356309njr:NjngMemberus-gaap:PensionAndOtherPostretirementPlansCostsMember2021-09-300000356309njr:NjngMemberus-gaap:StormCostsMember2022-09-300000356309njr:NjngMemberus-gaap:StormCostsMember2021-09-300000356309njr:NjngMemberus-gaap:RemovalCostsMember2022-09-300000356309njr:NjngMemberus-gaap:RemovalCostsMember2021-09-300000356309njr:NjngMembernjr:LiabilityOverrecoveredGasCostsMember2022-09-300000356309njr:NjngMembernjr:LiabilityOverrecoveredGasCostsMember2021-09-300000356309njr:NjngMemberus-gaap:DeferredDerivativeGainLossMember2022-09-300000356309njr:NjngMemberus-gaap:DeferredDerivativeGainLossMember2021-09-300000356309njr:NjngMembernjr:TaxActMember2022-09-300000356309njr:NjngMembernjr:TaxActMember2021-09-300000356309njr:NjngMembernjr:OtherRegulatoryNoncurrentLiabilityMember2022-09-300000356309njr:NjngMembernjr:OtherRegulatoryNoncurrentLiabilityMember2021-09-300000356309njr:AdelphiaGatewayLLCMember2022-09-300000356309njr:AdelphiaGatewayLLCMember2021-09-300000356309njr:EnvironmentalRemediationCostsMember2021-10-012022-09-300000356309srt:MinimumMembernjr:SAVEGREENMember2021-10-012022-09-300000356309njr:SAVEGREENMembersrt:MaximumMember2021-10-012022-09-300000356309njr:PostemploymentandOtherBenefitCostsMember2021-10-012022-09-300000356309njr:DeferredStormDamageCostsMember2021-10-012022-09-300000356309njr:OtherRegulatoryAssetNoncurrentPimMember2022-09-300000356309njr:OtherRegulatoryAssetNoncurrentPimMember2021-10-012022-09-300000356309njr:NjngMembernjr:BPUMember2021-11-172021-11-17njr:filing0000356309njr:NjngMembernjr:BGSSMember2020-12-012021-01-310000356309njr:BGSSMembernjr:NjngMember2021-11-172021-11-170000356309njr:BGSSBalancingMembernjr:NjngMember2021-11-172021-11-170000356309njr:ConservationIncentiveProgramMembernjr:NjngMember2021-11-172021-11-170000356309njr:NjngMembernjr:BGSSMember2021-11-192021-11-190000356309njr:BGSSMembernjr:NjngMember2022-06-012022-06-010000356309njr:BGSSBalancingMembernjr:NjngMember2022-06-012022-06-010000356309njr:ConservationIncentiveProgramMembernjr:NjngMember2022-06-012022-06-010000356309njr:SAVEGREENMember2020-09-252020-09-250000356309njr:SAVEGREENMember2021-03-032021-03-030000356309njr:NjngMembernjr:NJNGEERecoveryRateMember2020-05-292020-05-290000356309njr:SAVEGREENMember2022-01-262022-01-260000356309njr:NjngMembernjr:NJNGEERecoveryRateMember2022-09-282022-09-280000356309njr:RACMember2021-04-012021-04-300000356309njr:NJCEPMember2021-04-012021-04-300000356309njr:UsfMember2021-06-012021-06-300000356309njr:RACMember2022-03-232022-03-230000356309njr:NJCEPMember2022-03-232022-03-230000356309njr:UsfMember2022-09-282022-09-280000356309njr:RACMember2022-09-132022-09-130000356309njr:NJCEPMember2022-09-132022-09-130000356309njr:SafeSafetyAccelerationAndFacilityEnhancementProgramMember2021-10-012022-09-300000356309njr:SAFEIIMember2021-10-012022-09-300000356309njr:NJRISEProgramMember2021-10-012022-09-30njr:project0000356309srt:MinimumMembernjr:NJRISEProgramMember2021-10-012022-09-300000356309srt:MaximumMembernjr:NJRISEProgramMember2021-10-012022-09-300000356309njr:NJRISEAndSAFEIICapitalInvestmentsMembernjr:NjngMember2021-03-012021-03-310000356309njr:SAFEIIandNJRISEMember2021-11-012021-11-300000356309njr:InfrastructureInvestmentProgramIIPMembernjr:NjngMember2019-02-282019-02-28njr:lease0000356309njr:InfrastructureInvestmentProgramIIPMembernjr:NjngMember2020-10-012020-10-310000356309njr:NjngMember2022-07-132022-07-130000356309njr:NjngMembernjr:BPUMember2022-09-072022-09-070000356309njr:NjngMembernjr:BPUMember2022-08-172022-08-170000356309us-gaap:EnergyRelatedDerivativeMembernjr:NaturalGasDistributionMemberus-gaap:NondesignatedMember2022-09-300000356309us-gaap:EnergyRelatedDerivativeMembernjr:NaturalGasDistributionMemberus-gaap:NondesignatedMember2021-09-300000356309us-gaap:CommodityContractMembernjr:NaturalGasDistributionMemberus-gaap:NondesignatedMember2022-09-300000356309us-gaap:CommodityContractMembernjr:NaturalGasDistributionMemberus-gaap:NondesignatedMember2021-09-300000356309us-gaap:EnergyRelatedDerivativeMemberus-gaap:NondesignatedMembernjr:NjresMember2022-09-300000356309us-gaap:EnergyRelatedDerivativeMemberus-gaap:NondesignatedMembernjr:NjresMember2021-09-300000356309us-gaap:CommodityContractMemberus-gaap:NondesignatedMembernjr:NjresMember2022-09-300000356309us-gaap:CommodityContractMemberus-gaap:NondesignatedMembernjr:NjresMember2021-09-300000356309us-gaap:ForeignExchangeContractMemberus-gaap:NondesignatedMembernjr:NjresMember2022-09-300000356309us-gaap:ForeignExchangeContractMemberus-gaap:NondesignatedMembernjr:NjresMember2021-09-300000356309us-gaap:NondesignatedMember2022-09-300000356309us-gaap:NondesignatedMember2021-09-300000356309us-gaap:EnergyRelatedDerivativeMembernjr:EnergyServicesMember2022-09-300000356309us-gaap:CommodityContractMembernjr:EnergyServicesMember2022-09-300000356309us-gaap:ForeignExchangeContractMembernjr:EnergyServicesMember2022-09-300000356309us-gaap:EnergyRelatedDerivativeMembernjr:NaturalGasDistributionMember2022-09-300000356309us-gaap:CommodityContractMembernjr:NaturalGasDistributionMember2022-09-300000356309us-gaap:EnergyRelatedDerivativeMembernjr:EnergyServicesMember2021-09-300000356309us-gaap:CommodityContractMembernjr:EnergyServicesMember2021-09-300000356309us-gaap:ForeignExchangeContractMembernjr:EnergyServicesMember2021-09-300000356309us-gaap:EnergyRelatedDerivativeMembernjr:NaturalGasDistributionMember2021-09-300000356309us-gaap:CommodityContractMembernjr:NaturalGasDistributionMember2021-09-300000356309us-gaap:SalesMemberus-gaap:EnergyRelatedDerivativeMembernjr:EnergyServicesMemberus-gaap:NondesignatedMember2020-10-012021-09-300000356309us-gaap:SalesMemberus-gaap:EnergyRelatedDerivativeMembernjr:EnergyServicesMemberus-gaap:NondesignatedMember2021-10-012022-09-300000356309us-gaap:SalesMemberus-gaap:EnergyRelatedDerivativeMembernjr:EnergyServicesMemberus-gaap:NondesignatedMember2019-10-012020-09-300000356309us-gaap:EnergyRelatedDerivativeMembernjr:EnergyServicesMemberus-gaap:NondesignatedMembernjr:NaturalGasPurchasesMember2021-10-012022-09-300000356309us-gaap:EnergyRelatedDerivativeMembernjr:EnergyServicesMemberus-gaap:NondesignatedMembernjr:NaturalGasPurchasesMember2020-10-012021-09-300000356309us-gaap:EnergyRelatedDerivativeMembernjr:EnergyServicesMemberus-gaap:NondesignatedMembernjr:NaturalGasPurchasesMember2019-10-012020-09-300000356309us-gaap:CommodityContractMembernjr:EnergyServicesMemberus-gaap:NondesignatedMember2021-10-012022-09-300000356309us-gaap:CommodityContractMembernjr:EnergyServicesMemberus-gaap:NondesignatedMember2020-10-012021-09-300000356309us-gaap:CommodityContractMembernjr:EnergyServicesMemberus-gaap:NondesignatedMember2019-10-012020-09-300000356309us-gaap:ForeignExchangeContractMembernjr:EnergyServicesMemberus-gaap:NondesignatedMember2021-10-012022-09-300000356309us-gaap:ForeignExchangeContractMembernjr:EnergyServicesMemberus-gaap:NondesignatedMember2020-10-012021-09-300000356309us-gaap:ForeignExchangeContractMembernjr:EnergyServicesMemberus-gaap:NondesignatedMember2019-10-012020-09-300000356309us-gaap:NondesignatedMember2021-10-012022-09-300000356309us-gaap:NondesignatedMember2020-10-012021-09-300000356309us-gaap:NondesignatedMember2019-10-012020-09-300000356309us-gaap:EnergyRelatedDerivativeMembernjr:NaturalGasDistributionMemberus-gaap:NondesignatedMember2021-10-012022-09-300000356309us-gaap:EnergyRelatedDerivativeMembernjr:NaturalGasDistributionMemberus-gaap:NondesignatedMember2020-10-012021-09-300000356309us-gaap:EnergyRelatedDerivativeMembernjr:NaturalGasDistributionMemberus-gaap:NondesignatedMember2019-10-012020-09-300000356309us-gaap:CommodityContractMembernjr:NaturalGasDistributionMemberus-gaap:NondesignatedMember2021-10-012022-09-300000356309us-gaap:CommodityContractMembernjr:NaturalGasDistributionMemberus-gaap:NondesignatedMember2020-10-012021-09-300000356309us-gaap:CommodityContractMembernjr:NaturalGasDistributionMemberus-gaap:NondesignatedMember2019-10-012020-09-300000356309njr:NaturalGasDistributionMemberus-gaap:NondesignatedMember2021-10-012022-09-300000356309njr:NaturalGasDistributionMemberus-gaap:NondesignatedMember2020-10-012021-09-300000356309njr:NaturalGasDistributionMemberus-gaap:NondesignatedMember2019-10-012020-09-300000356309us-gaap:TreasuryLockMemberus-gaap:InterestExpenseMember2020-10-012021-09-300000356309us-gaap:TreasuryLockMemberus-gaap:InterestExpenseMember2021-10-012022-09-300000356309us-gaap:TreasuryLockMember2021-10-012022-09-300000356309us-gaap:TreasuryLockMember2020-10-012021-09-300000356309us-gaap:LongMembernjr:NaturalGasDistributionMemberus-gaap:FutureMember2021-10-012022-09-300000356309us-gaap:LongMembernjr:NaturalGasDistributionMemberus-gaap:FutureMember2020-10-012021-09-300000356309us-gaap:EnergyRelatedDerivativeMemberus-gaap:LongMembernjr:NaturalGasDistributionMember2021-10-012022-09-300000356309us-gaap:EnergyRelatedDerivativeMemberus-gaap:LongMembernjr:NaturalGasDistributionMember2020-10-012021-09-300000356309njr:EnergyServicesMemberus-gaap:ShortMemberus-gaap:FutureMember2021-10-012022-09-300000356309njr:EnergyServicesMemberus-gaap:ShortMemberus-gaap:FutureMember2020-10-012021-09-300000356309njr:EnergyServicesMemberus-gaap:ShortMemberus-gaap:SwapMember2021-10-012022-09-300000356309njr:EnergyServicesMemberus-gaap:ShortMemberus-gaap:SwapMember2020-10-012021-09-300000356309us-gaap:EnergyRelatedDerivativeMembernjr:EnergyServicesMemberus-gaap:LongMember2021-10-012022-09-300000356309us-gaap:EnergyRelatedDerivativeMembernjr:EnergyServicesMemberus-gaap:LongMember2020-10-012021-09-300000356309us-gaap:ForeignExchangeContractMember2022-09-300000356309us-gaap:ForeignExchangeContractMember2021-09-30njr:certificate0000356309njr:AssetsCurrentMembernjr:NaturalGasDistributionMember2022-09-300000356309njr:AssetsCurrentMembernjr:NaturalGasDistributionMember2021-09-300000356309njr:AssetsCurrentMembernjr:EnergyServicesMember2022-09-300000356309njr:AssetsCurrentMembernjr:EnergyServicesMember2021-09-300000356309us-gaap:ExternalCreditRatingInvestmentGradeMember2021-10-012022-09-300000356309us-gaap:ExternalCreditRatingNonInvestmentGradeMember2021-10-012022-09-300000356309njr:InternallyRatedInvestmentGradeMember2021-10-012022-09-300000356309njr:InternallyRatedNoninvestmentGradeMember2021-10-012022-09-300000356309njr:NjngMemberus-gaap:CarryingReportedAmountFairValueDisclosureMemberus-gaap:FairValueInputsLevel2Member2022-09-300000356309njr:NjngMemberus-gaap:CarryingReportedAmountFairValueDisclosureMemberus-gaap:FairValueInputsLevel2Member2021-09-300000356309njr:NjngMemberus-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:FairValueInputsLevel2Member2022-09-300000356309njr:NjngMemberus-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:FairValueInputsLevel2Member2021-09-300000356309njr:NjrMemberus-gaap:CarryingReportedAmountFairValueDisclosureMemberus-gaap:FairValueInputsLevel2Member2022-09-300000356309njr:NjrMemberus-gaap:CarryingReportedAmountFairValueDisclosureMemberus-gaap:FairValueInputsLevel2Member2021-09-300000356309njr:NjrMemberus-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:FairValueInputsLevel2Member2022-09-300000356309njr:NjrMemberus-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:FairValueInputsLevel2Member2021-09-300000356309njr:NjngMember2022-09-300000356309njr:NjngMember2021-09-300000356309njr:NjrMember2022-09-300000356309njr:NjrMember2021-09-300000356309us-gaap:EstimateOfFairValueFairValueDisclosureMembernjr:CleanEnergyVenturesMembernjr:SolarAssetFinancingMember2022-09-300000356309us-gaap:EstimateOfFairValueFairValueDisclosureMembernjr:CleanEnergyVenturesMembernjr:SolarAssetFinancingMember2021-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:EnergyRelatedDerivativeMember2022-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EnergyRelatedDerivativeMemberus-gaap:FairValueInputsLevel2Member2022-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EnergyRelatedDerivativeMemberus-gaap:FairValueInputsLevel3Member2022-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EnergyRelatedDerivativeMember2022-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:CommodityContractMember2022-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMemberus-gaap:FairValueInputsLevel2Member2022-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMemberus-gaap:FairValueInputsLevel3Member2022-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMember2022-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:ForeignExchangeContractMember2022-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueInputsLevel2Member2022-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueInputsLevel3Member2022-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMember2022-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:MoneyMarketFundsMember2022-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:MoneyMarketFundsMemberus-gaap:FairValueInputsLevel2Member2022-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MoneyMarketFundsMember2022-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:MoneyMarketFundsMember2022-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2022-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2022-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-09-300000356309us-gaap:FairValueMeasurementsRecurringMember2022-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:EnergyRelatedDerivativeMember2021-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EnergyRelatedDerivativeMemberus-gaap:FairValueInputsLevel2Member2021-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EnergyRelatedDerivativeMemberus-gaap:FairValueInputsLevel3Member2021-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EnergyRelatedDerivativeMember2021-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:CommodityContractMember2021-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMemberus-gaap:FairValueInputsLevel2Member2021-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMemberus-gaap:FairValueInputsLevel3Member2021-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommodityContractMember2021-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:ForeignExchangeContractMember2021-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueInputsLevel2Member2021-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueInputsLevel3Member2021-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ForeignExchangeContractMember2021-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:MoneyMarketFundsMember2021-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:MoneyMarketFundsMemberus-gaap:FairValueInputsLevel2Member2021-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MoneyMarketFundsMember2021-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:MoneyMarketFundsMember2021-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2021-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-09-300000356309us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2021-09-300000356309us-gaap:FairValueMeasurementsRecurringMember2021-09-300000356309njr:SteckmanRidgeMember2021-09-300000356309njr:PennEastMember2021-09-300000356309njr:PennEastMember2021-10-012022-09-30utr:mi00003563092021-04-012021-06-300000356309njr:PennEastMembernjr:PennEastMember2021-10-012022-09-300000356309njr:PennEastMembernjr:PennEastMember2022-09-300000356309njr:SteckmanRidgeMember2021-10-012022-09-300000356309njr:SteckmanRidgeMember2020-10-012021-09-300000356309njr:SteckmanRidgeMember2019-10-012020-09-300000356309njr:SteckmanRidgeMember2022-09-300000356309njr:SteckmanRidgeMember2021-09-300000356309njr:PennEastMember2021-10-012022-09-300000356309njr:PennEastMember2020-10-012021-09-300000356309njr:PennEastMember2019-10-012020-09-300000356309njr:PennEastMember2022-09-300000356309njr:PennEastMember2021-09-300000356309us-gaap:StockCompensationPlanMember2019-10-012020-09-300000356309us-gaap:StockCompensationPlanMember2021-10-012022-09-300000356309us-gaap:StockCompensationPlanMember2020-10-012021-09-300000356309us-gaap:FirstMortgageMembernjr:SeriesOOMembernjr:NjngMember2022-09-300000356309us-gaap:FirstMortgageMembernjr:SeriesOOMembernjr:NjngMember2021-09-300000356309njr:SeriesPPMemberus-gaap:FirstMortgageMembernjr:NjngMember2022-09-300000356309njr:SeriesPPMemberus-gaap:FirstMortgageMembernjr:NjngMember2021-09-300000356309us-gaap:FirstMortgageMembernjr:NjngMembernjr:SeriesQQMember2022-09-300000356309us-gaap:FirstMortgageMembernjr:NjngMembernjr:SeriesQQMember2021-09-300000356309njr:SeriesRRMemberus-gaap:FirstMortgageMembernjr:NjngMember2022-09-300000356309njr:SeriesRRMemberus-gaap:FirstMortgageMembernjr:NjngMember2021-09-300000356309us-gaap:FirstMortgageMembernjr:SeriesSSMembernjr:NjngMember2022-09-300000356309us-gaap:FirstMortgageMembernjr:SeriesSSMembernjr:NjngMember2021-09-300000356309us-gaap:FirstMortgageMembernjr:SeriesTTMembernjr:NjngMember2022-09-300000356309us-gaap:FirstMortgageMembernjr:SeriesTTMembernjr:NjngMember2021-09-300000356309us-gaap:FirstMortgageMembernjr:NjngMembernjr:SeriesUUMember2022-09-300000356309us-gaap:FirstMortgageMembernjr:NjngMembernjr:SeriesUUMember2021-09-300000356309us-gaap:FirstMortgageMembernjr:SeriesVVMembernjr:NjngMember2022-09-300000356309us-gaap:FirstMortgageMembernjr:SeriesVVMembernjr:NjngMember2021-09-300000356309us-gaap:FirstMortgageMembernjr:SeriesWWMembernjr:NjngMember2022-09-300000356309us-gaap:FirstMortgageMembernjr:SeriesWWMembernjr:NjngMember2021-09-300000356309us-gaap:FirstMortgageMembernjr:NjngMembernjr:SeriesXXMember2022-09-300000356309us-gaap:FirstMortgageMembernjr:NjngMembernjr:SeriesXXMember2021-09-300000356309njr:SeriesYYMemberus-gaap:FirstMortgageMembernjr:NjngMember2022-09-300000356309njr:SeriesYYMemberus-gaap:FirstMortgageMembernjr:NjngMember2021-09-300000356309njr:SeriesZZMemberus-gaap:FirstMortgageMembernjr:NjngMember2022-09-300000356309njr:SeriesZZMemberus-gaap:FirstMortgageMembernjr:NjngMember2021-09-300000356309us-gaap:FirstMortgageMembernjr:NjngMembernjr:SeriesAAAMember2022-09-300000356309us-gaap:FirstMortgageMembernjr:NjngMembernjr:SeriesAAAMember2021-09-300000356309us-gaap:FirstMortgageMembernjr:SeriesBBBMembernjr:NjngMember2022-09-300000356309us-gaap:FirstMortgageMembernjr:SeriesBBBMembernjr:NjngMember2021-09-300000356309us-gaap:FirstMortgageMembernjr:SeriesCCCMembernjr:NjngMember2022-09-300000356309us-gaap:FirstMortgageMembernjr:SeriesCCCMembernjr:NjngMember2021-09-300000356309us-gaap:FirstMortgageMembernjr:NjngMembernjr:SeriesDDDMember2022-09-300000356309us-gaap:FirstMortgageMembernjr:NjngMembernjr:SeriesDDDMember2021-09-300000356309njr:SeriesEEEMemberus-gaap:FirstMortgageMembernjr:NjngMember2022-09-300000356309njr:SeriesEEEMemberus-gaap:FirstMortgageMembernjr:NjngMember2021-09-300000356309njr:SeriesFFFMemberus-gaap:FirstMortgageMembernjr:NjngMember2022-09-300000356309njr:SeriesFFFMemberus-gaap:FirstMortgageMembernjr:NjngMember2021-09-300000356309us-gaap:FirstMortgageMembernjr:SeriesGGGMembernjr:NjngMember2022-09-300000356309us-gaap:FirstMortgageMembernjr:SeriesGGGMembernjr:NjngMember2021-09-300000356309us-gaap:FirstMortgageMembernjr:NjngMembernjr:SeriesHHHMember2022-09-300000356309us-gaap:FirstMortgageMembernjr:NjngMembernjr:SeriesHHHMember2021-09-300000356309njr:SeriesIIIMemberus-gaap:FirstMortgageMembernjr:NjngMember2022-09-300000356309njr:SeriesIIIMemberus-gaap:FirstMortgageMembernjr:NjngMember2021-09-300000356309njr:SeriesJJJMemberus-gaap:FirstMortgageMembernjr:NjngMember2022-09-300000356309njr:SeriesJJJMemberus-gaap:FirstMortgageMembernjr:NjngMember2021-09-300000356309us-gaap:FirstMortgageMembernjr:NjngMembernjr:SeriesLLLMember2022-09-300000356309us-gaap:FirstMortgageMembernjr:NjngMembernjr:SeriesLLLMember2021-09-300000356309njr:SeriesMMMMemberus-gaap:FirstMortgageMembernjr:NjngMember2022-09-300000356309njr:SeriesMMMMemberus-gaap:FirstMortgageMembernjr:NjngMember2021-09-300000356309njr:MetersCapitalLeaseObligationMembernjr:NjngMember2022-09-300000356309njr:MetersCapitalLeaseObligationMembernjr:NjngMember2021-09-300000356309njr:NjrMembernjr:UnsecuredSeniorNote325Member2022-09-300000356309njr:NjrMembernjr:UnsecuredSeniorNote325Member2021-09-300000356309njr:NjrMembernjr:Unsecuredseniornote3.2Member2022-09-300000356309njr:NjrMembernjr:Unsecuredseniornote3.2Member2021-09-300000356309njr:NjrMembernjr:Unsecuredseniornote3.48Member2022-09-300000356309njr:NjrMembernjr:Unsecuredseniornote3.48Member2021-09-300000356309njr:NjrMembernjr:Unsecuredseniornote3.54Member2022-09-300000356309njr:NjrMembernjr:Unsecuredseniornote3.54Member2021-09-300000356309njr:NjrMembernjr:Unsecuredseniornotes3.96Member2022-09-300000356309njr:NjrMembernjr:Unsecuredseniornotes3.96Member2021-09-300000356309njr:NjrMembernjr:Unsecuredseniornotes3.29Member2022-09-300000356309njr:NjrMembernjr:Unsecuredseniornotes3.29Member2021-09-300000356309njr:NjrMembernjr:UnsecuredSeniorNote36Member2022-09-300000356309njr:NjrMembernjr:UnsecuredSeniorNote36Member2021-09-300000356309njr:NjrMembernjr:UnsecuredSeniorNote35Member2022-09-300000356309njr:NjrMembernjr:UnsecuredSeniorNote35Member2021-09-300000356309njr:NjrMembernjr:UnsecuredSeniorNotes325Member2022-09-300000356309njr:NjrMembernjr:UnsecuredSeniorNotes325Member2021-09-300000356309njr:UnsecuredSeniorNote313Membernjr:NjrMember2022-09-300000356309njr:UnsecuredSeniorNote313Membernjr:NjrMember2021-09-300000356309njr:NjrMembernjr:UnsecuredSeniorNotes438Member2022-09-300000356309njr:NjrMembernjr:UnsecuredSeniorNotes438Member2021-09-300000356309njr:NjrMembernjr:UnsecuredSeniorNotes364Member2022-09-300000356309njr:NjrMembernjr:UnsecuredSeniorNotes364Member2021-09-300000356309njr:NjrMember2022-09-300000356309njr:NjrMember2021-09-300000356309njr:NjrcevMember2022-09-300000356309njr:NjrcevMember2021-09-300000356309njr:NjrMembernjr:UnsecuredSeniorNotes438Member2022-06-230000356309njr:NjrMembernjr:UnsecuredSeniorNotes364Member2022-09-160000356309us-gaap:FirstMortgageMembernjr:NjngMember2022-09-300000356309us-gaap:SeniorNotesMembernjr:NjngMember2021-10-280000356309njr:FixedInterestRateMaturing2051Memberus-gaap:SeniorNotesMembernjr:NjngMember2021-10-280000356309us-gaap:SeniorNotesMembernjr:NjngMembernjr:FixedInterestRateMaturing2061Member2021-10-280000356309us-gaap:SeniorNotesMembernjr:NjngMember2022-05-270000356309us-gaap:SeniorNotesMembernjr:NjngMembernjr:FixedInterestRateMaturing2037Member2022-05-270000356309us-gaap:SeniorNotesMembernjr:FixedInterestRateMaturing2052Membernjr:NjngMember2022-05-270000356309us-gaap:SeniorNotesMemberus-gaap:SubsequentEventMembernjr:NjngMember2022-10-240000356309us-gaap:SeniorNotesMembernjr:FixedInterestRateMaturing2052Memberus-gaap:SubsequentEventMembernjr:NjngMember2022-10-240000356309njr:CleanEnergyVenturesMember2022-09-300000356309njr:NjrMembernjr:CommittedCreditFacilitiesDueFebruary2023Membernjr:TermLoanMember2022-02-080000356309njr:NjrMembernjr:CommittedCreditFacilitiesDueFebruary2023Memberus-gaap:SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMembernjr:TermLoanMember2022-02-082022-02-080000356309njr:NjrMembernjr:CommittedCreditFacilitiesDueFebruary2023Membernjr:TermLoanMember2022-02-090000356309njr:NjrMembernjr:CommittedCreditFacilitiesDueFebruary2023Membernjr:TermLoanMember2022-02-140000356309njr:NjrMemberus-gaap:RevolvingCreditFacilityMembernjr:CommittedCreditFacilitiesDueSeptember2027Member2022-09-300000356309njr:NjrMemberus-gaap:RevolvingCreditFacilityMembernjr:CommittedCreditFacilitiesDueSeptember2027Member2021-09-300000356309njr:NjrMembernjr:CommittedCreditFacilitiesDueFebruary2023Membernjr:TermLoanMember2022-09-300000356309njr:NjrMembernjr:CommittedCreditFacilitiesDueFebruary2023Membernjr:TermLoanMember2021-09-300000356309us-gaap:RevolvingCreditFacilityMembernjr:CommittedCreditFacilitiesDueSeptember2027Membernjr:NjngMember2022-09-300000356309us-gaap:RevolvingCreditFacilityMembernjr:CommittedCreditFacilitiesDueSeptember2027Membernjr:NjngMember2021-09-300000356309njr:NjrMemberus-gaap:RevolvingCreditFacilityMember2021-10-012022-09-300000356309njr:NjrMembernjr:LetterofCreditonBehalfofNJRESMember2022-09-300000356309njr:NjrMembernjr:LetterofCreditonBehalfofNJRESMember2021-09-300000356309us-gaap:RevolvingCreditFacilityMembernjr:NjngMember2021-10-012022-09-300000356309njr:NjngMemberus-gaap:LetterOfCreditMember2022-09-300000356309njr:NjngMemberus-gaap:LetterOfCreditMember2021-09-300000356309njr:NjrMembernjr:CommittedCreditFacilitiesDueSeptember2026Memberus-gaap:RevolvingCreditFacilityMember2021-09-300000356309njr:NjrMemberus-gaap:RevolvingCreditFacilityMember2020-10-012021-09-30njr:mutualOption0000356309njr:NjrMemberus-gaap:RevolvingCreditFacilityMember2021-09-300000356309us-gaap:LineOfCreditMembernjr:NjrMember2021-09-300000356309njr:NjrMemberus-gaap:RevolvingCreditFacilityMembernjr:CommittedCreditFacilitiesDueSeptember2027Member2022-08-300000356309njr:NjrMembernjr:SwinglineLoanMemberus-gaap:RevolvingCreditFacilityMember2022-08-300000356309njr:NjrMembernjr:SwinglineLoanMemberus-gaap:RevolvingCreditFacilityMember2021-09-30njr:debtInstrument0000356309njr:CommittedCreditFacilitiesDueSeptember2026Memberus-gaap:RevolvingCreditFacilityMembernjr:NjngMember2021-09-300000356309us-gaap:RevolvingCreditFacilityMembernjr:NjngMember2020-10-012021-09-300000356309us-gaap:LineOfCreditMembernjr:NjngMember2021-09-300000356309us-gaap:RevolvingCreditFacilityMembernjr:NjngMember2021-09-300000356309us-gaap:PerformanceSharesMember2021-10-012022-09-300000356309us-gaap:PerformanceSharesMember2020-10-012021-09-300000356309us-gaap:PerformanceSharesMember2019-10-012020-09-300000356309njr:RestrictedandNonRestrictedStockMember2021-10-012022-09-300000356309njr:RestrictedandNonRestrictedStockMember2020-10-012021-09-300000356309njr:RestrictedandNonRestrictedStockMember2019-10-012020-09-300000356309njr:DeferredRetentionStockMember2021-10-012022-09-300000356309njr:DeferredRetentionStockMember2020-10-012021-09-300000356309njr:DeferredRetentionStockMember2019-10-012020-09-300000356309njr:PerformanceSharesMarketConditionAwardMember2022-09-300000356309njr:PerformanceSharesSubjectToPerformanceConditionsMember2022-09-300000356309njr:PerformanceSharesSubjectToPerformanceConditionsMembernjr:VestingSeptember302024Member2022-09-300000356309njr:PerformanceSharesSubjectToPerformanceConditionsMembernjr:VestingAnnuallyOverThreeYearPeriodBeginningSeptember2022Member2022-09-300000356309njr:PerformanceSharesSubjectToPerformanceConditionsMembernjr:VestingAnnuallyOverThreeYearPeriodBeginningSeptember2022Member2021-10-012022-09-300000356309njr:PerformanceSharesMarketConditionAwardMember2021-09-300000356309njr:PerformanceSharesSubjectToPerformanceConditionsMember2021-09-300000356309njr:PerformanceSharesSubjectToPerformanceConditionsMembernjr:VestingSeptember302023Member2021-09-300000356309njr:PerformanceSharesSubjectToPerformanceConditionsMembernjr:VestingAnnuallyOverThreeYearPeriodBeginningSeptember2021Member2021-09-300000356309njr:PerformanceSharesSubjectToPerformanceConditionsMembernjr:VestingAnnuallyOverThreeYearPeriodBeginningSeptember2021Member2020-10-012021-09-300000356309njr:PerformanceSharesMarketConditionAwardMember2020-09-300000356309njr:PerformanceSharesSubjectToPerformanceConditionsMember2020-09-300000356309njr:PerformanceSharesSubjectToPerformanceConditionsMembernjr:VestingSeptember302022Member2020-09-300000356309njr:PerformanceSharesSubjectToPerformanceConditionsMembernjr:VestingAnnuallyOverThreeYearPeriodBeginningSeptember2020Member2020-09-300000356309njr:PerformanceSharesSubjectToPerformanceConditionsMembernjr:VestingAnnuallyOverThreeYearPeriodBeginningSeptember2020Member2019-10-012020-09-300000356309us-gaap:PerformanceSharesMember2022-09-300000356309njr:PerformanceSharesSubjectToPerformanceConditionsMember2021-10-012022-09-300000356309us-gaap:PerformanceSharesMember2019-09-300000356309us-gaap:PerformanceSharesMember2020-09-300000356309us-gaap:PerformanceSharesMember2021-09-300000356309srt:MinimumMemberus-gaap:PerformanceSharesMember2022-09-300000356309us-gaap:PerformanceSharesMembersrt:MaximumMember2022-09-300000356309njr:PerformanceSharesSubjectToPerformanceConditionsMember2020-11-090000356309us-gaap:PerformanceSharesMember2020-11-090000356309njr:PerformancebasedRestrictedStockMember2020-11-090000356309njr:PerformanceSharesTSRMember2021-11-100000356309us-gaap:PerformanceSharesMember2021-11-100000356309njr:PerformancebasedRestrictedStockMember2021-11-100000356309njr:PerformanceSharesTSRMemberus-gaap:SubsequentEventMember2022-11-090000356309us-gaap:PerformanceSharesMemberus-gaap:SubsequentEventMember2022-11-090000356309njr:PerformancebasedRestrictedStockMemberus-gaap:SubsequentEventMember2022-11-090000356309us-gaap:RestrictedStockMembernjr:VestingAnnuallyOverThreeYearPeriodBeginningOctober2022Member2022-09-300000356309us-gaap:RestrictedStockMembernjr:VestingAnnuallyOverThreeYearPeriodBeginningOctober2021Member2021-09-300000356309us-gaap:RestrictedStockMembernjr:VestingAnnuallyOverThreeYearPeriodBeginningOctober2020Member2020-09-300000356309us-gaap:RestrictedStockMembernjr:VestingAnnuallyOverThreeYearPeriodBeginningOctober2020Member2019-10-012020-09-300000356309us-gaap:RestrictedStockMembernjr:VestingAnnuallyOverThreeYearPeriodBeginningOctober2022Member2021-10-012022-09-300000356309us-gaap:RestrictedStockMembernjr:VestingAnnuallyOverThreeYearPeriodBeginningOctober2021Member2020-10-012021-09-300000356309us-gaap:RestrictedStockMember2022-09-300000356309us-gaap:RestrictedStockMember2021-10-012022-09-300000356309us-gaap:RestrictedStockMember2019-09-300000356309us-gaap:RestrictedStockMember2019-10-012020-09-300000356309us-gaap:RestrictedStockMember2020-09-300000356309us-gaap:RestrictedStockMember2020-10-012021-09-300000356309us-gaap:RestrictedStockMember2021-09-300000356309njr:DeferredRetentionStockMember2019-09-300000356309njr:DeferredRetentionStockMember2020-09-300000356309njr:DeferredRetentionStockMember2021-09-300000356309njr:DeferredRetentionStockMember2022-09-300000356309njr:ScheduledToVestImmediatelyMembersrt:DirectorMember2021-10-012022-09-300000356309njr:ScheduledToVestImmediatelyMembersrt:DirectorMember2020-10-012021-09-300000356309njr:ScheduledToVestImmediatelyMembersrt:DirectorMember2019-10-012020-09-300000356309srt:MinimumMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-09-300000356309srt:MaximumMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-09-300000356309us-gaap:PensionPlansDefinedBenefitMember2021-09-300000356309us-gaap:PensionPlansDefinedBenefitMember2020-09-300000356309us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-09-300000356309us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2020-09-300000356309us-gaap:PensionPlansDefinedBenefitMember2022-09-300000356309us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-09-300000356309us-gaap:PensionPlansDefinedBenefitMembernjr:RegulatoryAssetsMember2020-09-300000356309njr:RegulatoryAssetsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2020-09-300000356309njr:AccumulatedOtherComprehensiveIncomeLocationMemberus-gaap:PensionPlansDefinedBenefitMember2020-09-300000356309njr:AccumulatedOtherComprehensiveIncomeLocationMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2020-09-300000356309us-gaap:PensionPlansDefinedBenefitMembernjr:RegulatoryAssetsMember2020-10-012021-09-300000356309njr:RegulatoryAssetsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2020-10-012021-09-300000356309njr:AccumulatedOtherComprehensiveIncomeLocationMemberus-gaap:PensionPlansDefinedBenefitMember2020-10-012021-09-300000356309njr:AccumulatedOtherComprehensiveIncomeLocationMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2020-10-012021-09-300000356309us-gaap:PensionPlansDefinedBenefitMembernjr:RegulatoryAssetsMember2021-09-300000356309njr:RegulatoryAssetsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-09-300000356309njr:AccumulatedOtherComprehensiveIncomeLocationMemberus-gaap:PensionPlansDefinedBenefitMember2021-09-300000356309njr:AccumulatedOtherComprehensiveIncomeLocationMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-09-300000356309us-gaap:PensionPlansDefinedBenefitMembernjr:RegulatoryAssetsMember2021-10-012022-09-300000356309njr:RegulatoryAssetsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-10-012022-09-300000356309njr:AccumulatedOtherComprehensiveIncomeLocationMemberus-gaap:PensionPlansDefinedBenefitMember2021-10-012022-09-300000356309njr:AccumulatedOtherComprehensiveIncomeLocationMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-10-012022-09-300000356309us-gaap:PensionPlansDefinedBenefitMembernjr:RegulatoryAssetsMember2022-09-300000356309njr:RegulatoryAssetsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-09-300000356309njr:AccumulatedOtherComprehensiveIncomeLocationMemberus-gaap:PensionPlansDefinedBenefitMember2022-09-300000356309njr:AccumulatedOtherComprehensiveIncomeLocationMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-09-300000356309us-gaap:PensionPlansDefinedBenefitMember2019-10-012020-09-300000356309us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2019-10-012020-09-300000356309us-gaap:PensionPlansDefinedBenefitMembernjr:RepresentedEmployeeMember2021-10-012022-09-300000356309us-gaap:PensionPlansDefinedBenefitMembernjr:NonrepresentedEmployeeMember2021-10-012022-09-300000356309us-gaap:PensionPlansDefinedBenefitMembernjr:RepresentedEmployeeMember2020-10-012021-09-300000356309us-gaap:PensionPlansDefinedBenefitMembernjr:NonrepresentedEmployeeMember2020-10-012021-09-300000356309us-gaap:PensionPlansDefinedBenefitMembernjr:RepresentedEmployeeMember2019-10-012020-09-300000356309us-gaap:PensionPlansDefinedBenefitMembernjr:NonrepresentedEmployeeMember2019-10-012020-09-300000356309njr:RepresentedEmployeeMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-10-012022-09-300000356309us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMembernjr:NonrepresentedEmployeeMember2021-10-012022-09-300000356309njr:RepresentedEmployeeMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2020-10-012021-09-300000356309us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMembernjr:NonrepresentedEmployeeMember2020-10-012021-09-300000356309njr:RepresentedEmployeeMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2019-10-012020-09-300000356309us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMembernjr:NonrepresentedEmployeeMember2019-10-012020-09-300000356309us-gaap:PensionPlansDefinedBenefitMembernjr:RepresentedEmployeeMember2022-09-300000356309us-gaap:PensionPlansDefinedBenefitMembernjr:NonrepresentedEmployeeMember2022-09-300000356309us-gaap:PensionPlansDefinedBenefitMembernjr:RepresentedEmployeeMember2021-09-300000356309us-gaap:PensionPlansDefinedBenefitMembernjr:NonrepresentedEmployeeMember2021-09-300000356309us-gaap:PensionPlansDefinedBenefitMembernjr:RepresentedEmployeeMember2020-09-300000356309us-gaap:PensionPlansDefinedBenefitMembernjr:NonrepresentedEmployeeMember2020-09-300000356309njr:RepresentedEmployeeMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-09-300000356309us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMembernjr:NonrepresentedEmployeeMember2022-09-300000356309njr:RepresentedEmployeeMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-09-300000356309us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMembernjr:NonrepresentedEmployeeMember2021-09-300000356309njr:RepresentedEmployeeMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2020-09-300000356309us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMembernjr:NonrepresentedEmployeeMember2020-09-300000356309us-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2022-09-300000356309us-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2021-09-300000356309us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember2022-09-300000356309us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember2021-09-300000356309us-gaap:FixedIncomeSecuritiesMember2022-09-300000356309us-gaap:FixedIncomeSecuritiesMember2021-09-300000356309us-gaap:DefinedBenefitPlanCommonCollectiveTrustMember2022-09-300000356309us-gaap:DefinedBenefitPlanCommonCollectiveTrustMember2021-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Memberus-gaap:MoneyMarketFundsMember2022-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:MoneyMarketFundsMember2022-09-300000356309us-gaap:FairValueInputsLevel1Memberus-gaap:MoneyMarketFundsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-09-300000356309us-gaap:FairValueInputsLevel12And3Memberus-gaap:MoneyMarketFundsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Membernjr:LargeCapIndexFundMember2022-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Membernjr:LargeCapIndexFundMember2022-09-300000356309us-gaap:FairValueInputsLevel1Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMembernjr:LargeCapIndexFundMember2022-09-300000356309us-gaap:FairValueInputsLevel12And3Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMembernjr:LargeCapIndexFundMember2022-09-300000356309us-gaap:PensionPlansDefinedBenefitMembernjr:ExtendedMarketIndexMemberus-gaap:FairValueInputsLevel1Member2022-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Membernjr:ExtendedMarketIndexMember2022-09-300000356309njr:ExtendedMarketIndexMemberus-gaap:FairValueInputsLevel1Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-09-300000356309us-gaap:FairValueInputsLevel12And3Membernjr:ExtendedMarketIndexMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-09-300000356309njr:WorldEquityExchangeUsFundMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Member2022-09-300000356309njr:WorldEquityExchangeUsFundMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Member2022-09-300000356309njr:WorldEquityExchangeUsFundMemberus-gaap:FairValueInputsLevel1Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-09-300000356309njr:WorldEquityExchangeUsFundMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Membernjr:EmergingMarketsDebtFundMember2022-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Membernjr:EmergingMarketsDebtFundMember2022-09-300000356309us-gaap:FairValueInputsLevel1Membernjr:EmergingMarketsDebtFundMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-09-300000356309us-gaap:FairValueInputsLevel12And3Membernjr:EmergingMarketsDebtFundMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Membernjr:CoreFixedIncomeMember2022-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Membernjr:CoreFixedIncomeMember2022-09-300000356309us-gaap:FairValueInputsLevel1Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMembernjr:CoreFixedIncomeMember2022-09-300000356309us-gaap:FairValueInputsLevel12And3Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMembernjr:CoreFixedIncomeMember2022-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Membernjr:OpportunisticIncomeMember2022-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Membernjr:OpportunisticIncomeMember2022-09-300000356309us-gaap:FairValueInputsLevel1Membernjr:OpportunisticIncomeMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-09-300000356309us-gaap:FairValueInputsLevel12And3Membernjr:OpportunisticIncomeMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-09-300000356309us-gaap:PensionPlansDefinedBenefitMembernjr:UltraShortDurationMemberus-gaap:FairValueInputsLevel1Member2022-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Membernjr:UltraShortDurationMember2022-09-300000356309njr:UltraShortDurationMemberus-gaap:FairValueInputsLevel1Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-09-300000356309us-gaap:FairValueInputsLevel12And3Membernjr:UltraShortDurationMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Membernjr:HighYieldBondFundMember2022-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Membernjr:HighYieldBondFundMember2022-09-300000356309us-gaap:FairValueInputsLevel1Membernjr:HighYieldBondFundMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-09-300000356309us-gaap:FairValueInputsLevel12And3Membernjr:HighYieldBondFundMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-09-300000356309njr:LongDurationFundMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Member2022-09-300000356309njr:LongDurationFundMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Member2022-09-300000356309njr:LongDurationFundMemberus-gaap:FairValueInputsLevel1Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-09-300000356309njr:LongDurationFundMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Member2022-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Member2022-09-300000356309us-gaap:FairValueInputsLevel1Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-09-300000356309us-gaap:FairValueInputsLevel12And3Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanCommonCollectiveTrustMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2022-09-300000356309us-gaap:DefinedBenefitPlanCommonCollectiveTrustMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2022-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Memberus-gaap:MoneyMarketFundsMember2021-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:MoneyMarketFundsMember2021-09-300000356309us-gaap:FairValueInputsLevel1Memberus-gaap:MoneyMarketFundsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-09-300000356309us-gaap:FairValueInputsLevel12And3Memberus-gaap:MoneyMarketFundsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Membernjr:LargeCapIndexFundMember2021-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Membernjr:LargeCapIndexFundMember2021-09-300000356309us-gaap:FairValueInputsLevel1Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMembernjr:LargeCapIndexFundMember2021-09-300000356309us-gaap:FairValueInputsLevel12And3Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMembernjr:LargeCapIndexFundMember2021-09-300000356309us-gaap:PensionPlansDefinedBenefitMembernjr:ExtendedMarketIndexMemberus-gaap:FairValueInputsLevel1Member2021-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Membernjr:ExtendedMarketIndexMember2021-09-300000356309njr:ExtendedMarketIndexMemberus-gaap:FairValueInputsLevel1Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-09-300000356309us-gaap:FairValueInputsLevel12And3Membernjr:ExtendedMarketIndexMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-09-300000356309njr:WorldEquityExchangeUsFundMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Member2021-09-300000356309njr:WorldEquityExchangeUsFundMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Member2021-09-300000356309njr:WorldEquityExchangeUsFundMemberus-gaap:FairValueInputsLevel1Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-09-300000356309njr:WorldEquityExchangeUsFundMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Membernjr:EmergingMarketsDebtFundMember2021-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Membernjr:EmergingMarketsDebtFundMember2021-09-300000356309us-gaap:FairValueInputsLevel1Membernjr:EmergingMarketsDebtFundMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-09-300000356309us-gaap:FairValueInputsLevel12And3Membernjr:EmergingMarketsDebtFundMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Membernjr:CoreFixedIncomeMember2021-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Membernjr:CoreFixedIncomeMember2021-09-300000356309us-gaap:FairValueInputsLevel1Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMembernjr:CoreFixedIncomeMember2021-09-300000356309us-gaap:FairValueInputsLevel12And3Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMembernjr:CoreFixedIncomeMember2021-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Membernjr:OpportunisticIncomeMember2021-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Membernjr:OpportunisticIncomeMember2021-09-300000356309us-gaap:FairValueInputsLevel1Membernjr:OpportunisticIncomeMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-09-300000356309us-gaap:FairValueInputsLevel12And3Membernjr:OpportunisticIncomeMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-09-300000356309us-gaap:PensionPlansDefinedBenefitMembernjr:UltraShortDurationMemberus-gaap:FairValueInputsLevel1Member2021-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Membernjr:UltraShortDurationMember2021-09-300000356309njr:UltraShortDurationMemberus-gaap:FairValueInputsLevel1Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-09-300000356309us-gaap:FairValueInputsLevel12And3Membernjr:UltraShortDurationMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Membernjr:HighYieldBondFundMember2021-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Membernjr:HighYieldBondFundMember2021-09-300000356309us-gaap:FairValueInputsLevel1Membernjr:HighYieldBondFundMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-09-300000356309us-gaap:FairValueInputsLevel12And3Membernjr:HighYieldBondFundMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-09-300000356309njr:LongDurationFundMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Member2021-09-300000356309njr:LongDurationFundMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Member2021-09-300000356309njr:LongDurationFundMemberus-gaap:FairValueInputsLevel1Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-09-300000356309njr:LongDurationFundMemberus-gaap:FairValueInputsLevel12And3Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Member2021-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel12And3Member2021-09-300000356309us-gaap:FairValueInputsLevel1Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-09-300000356309us-gaap:FairValueInputsLevel12And3Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-09-300000356309us-gaap:PensionPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanCommonCollectiveTrustMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2021-09-300000356309us-gaap:DefinedBenefitPlanCommonCollectiveTrustMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2021-09-300000356309srt:MinimumMembernjr:NJRHSMember2021-10-012022-09-300000356309njr:NJRHSMembersrt:MaximumMember2021-10-012022-09-300000356309njr:NjrcevMember2021-09-300000356309njr:NjngMember2020-09-300000356309njr:NjrcevMember2020-09-300000356309njr:NjrcevMember2021-10-012022-09-300000356309njr:NjrcevMember2020-10-012021-09-300000356309njr:NjrcevMember2022-09-300000356309us-gaap:StateAndLocalJurisdictionMember2022-09-300000356309us-gaap:StateAndLocalJurisdictionMember2021-09-300000356309us-gaap:StateAndLocalJurisdictionMembersrt:MinimumMember2021-10-012022-09-300000356309us-gaap:StateAndLocalJurisdictionMembersrt:MaximumMember2021-10-012022-09-300000356309us-gaap:CapitalLossCarryforwardMember2022-09-300000356309us-gaap:CapitalLossCarryforwardMember2021-09-300000356309njr:SolarPropertyMembersrt:MinimumMember2022-09-300000356309njr:SolarPropertyMembersrt:MaximumMember2022-09-300000356309srt:MinimumMembersrt:OfficeBuildingMember2022-09-300000356309srt:MaximumMembersrt:OfficeBuildingMember2022-09-300000356309srt:MinimumMembernjr:MeterLicenseMember2022-09-300000356309njr:MeterLicenseMembersrt:MaximumMember2022-09-300000356309us-gaap:EquipmentMember2022-09-300000356309njr:StorageAndCapacityLeasesMember2022-09-300000356309srt:OfficeBuildingMember2021-07-310000356309srt:MinimumMembernjr:EnergyServicesMember2021-10-012022-09-300000356309njr:EnergyServicesMembersrt:MaximumMember2021-10-012022-09-300000356309njr:EnergyServicesMemberus-gaap:InventoriesMember2022-09-300000356309njr:EnergyServicesMembernjr:StorageDemandFeesMember2022-09-300000356309njr:EnergyServicesMembernjr:PipelineDemandFeesMember2022-09-300000356309njr:NaturalGasDistributionMemberus-gaap:InventoriesMember2022-09-300000356309njr:StorageDemandFeesMembernjr:NaturalGasDistributionMember2022-09-300000356309njr:NaturalGasDistributionMembernjr:PipelineDemandFeesMember2022-09-300000356309us-gaap:GuaranteeObligationsMember2022-09-300000356309njr:RACMember2021-04-072021-04-070000356309njr:EnviromentalRemediationCostsExpendedNetOfRecoveriesMember2022-09-3000003563092019-12-012019-12-310000356309njr:DirectlyIssuedCommonStockMember2019-12-012019-12-310000356309njr:ForwardSalesAgreementsMember2019-12-012019-12-310000356309njr:ForwardSalesAgreementsMember2021-03-032021-03-030000356309njr:ForwardSalesAgreementsMember2021-03-030000356309njr:ForwardSalesAgreementsMember2021-05-262021-05-260000356309njr:ForwardSalesAgreementsMember2021-05-260000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionExternalCustomersMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionExternalCustomersMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionExternalCustomersMember2019-10-012020-09-300000356309njr:NaturalGasDistributionExternalCustomersMemberus-gaap:IntersegmentEliminationMember2021-10-012022-09-300000356309njr:NaturalGasDistributionExternalCustomersMemberus-gaap:IntersegmentEliminationMember2020-10-012021-09-300000356309njr:NaturalGasDistributionExternalCustomersMemberus-gaap:IntersegmentEliminationMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:CleanEnergyVenturesExternalCustomersMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:CleanEnergyVenturesExternalCustomersMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:CleanEnergyVenturesExternalCustomersMember2019-10-012020-09-300000356309njr:EnergyServicesMemberus-gaap:IntersegmentEliminationMember2021-10-012022-09-300000356309njr:EnergyServicesMemberus-gaap:IntersegmentEliminationMember2020-10-012021-09-300000356309njr:EnergyServicesMemberus-gaap:IntersegmentEliminationMember2019-10-012020-09-300000356309us-gaap:IntersegmentEliminationMembernjr:StorageAndTransportationMember2021-10-012022-09-300000356309us-gaap:IntersegmentEliminationMembernjr:StorageAndTransportationMember2020-10-012021-09-300000356309us-gaap:IntersegmentEliminationMembernjr:StorageAndTransportationMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMember2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMember2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMember2019-10-012020-09-300000356309us-gaap:IntersegmentEliminationMember2021-10-012022-09-300000356309us-gaap:IntersegmentEliminationMember2020-10-012021-09-300000356309us-gaap:IntersegmentEliminationMember2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMembercountry:CA2021-10-012022-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMembercountry:CA2020-10-012021-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMembercountry:CA2019-10-012020-09-300000356309us-gaap:OperatingSegmentsMembernjr:NaturalGasDistributionMember2020-09-300000356309us-gaap:OperatingSegmentsMembernjr:CleanEnergyVenturesMember2020-09-300000356309us-gaap:OperatingSegmentsMembernjr:EnergyServicesMember2020-09-300000356309us-gaap:OperatingSegmentsMembernjr:StorageAndTransportationMember2020-09-300000356309us-gaap:OperatingSegmentsMember2022-09-300000356309us-gaap:OperatingSegmentsMember2021-09-300000356309us-gaap:OperatingSegmentsMember2020-09-300000356309us-gaap:CorporateNonSegmentMember2020-09-300000356309srt:ConsolidationEliminationsMember2022-09-300000356309srt:ConsolidationEliminationsMember2021-09-300000356309srt:ConsolidationEliminationsMember2020-09-300000356309njr:NjngToNjresAffilateMember2020-04-012020-04-010000356309njr:NjngToSteckmanRidgeAffiliateMember2020-04-012020-04-010000356309njr:NjngToSteckmanRidgeAffiliateMember2021-10-012022-09-300000356309njr:NjngToSteckmanRidgeAffiliateMember2020-10-012021-09-300000356309njr:NjngToSteckmanRidgeAffiliateMember2019-10-012020-09-300000356309njr:NjresToSteckmanRidgeAfffiliateMember2021-10-012022-09-300000356309njr:NjresToSteckmanRidgeAfffiliateMember2020-10-012021-09-300000356309njr:NjresToSteckmanRidgeAfffiliateMember2019-10-012020-09-300000356309njr:NjngToSteckmanRidgeAffiliateMember2022-09-300000356309njr:NjngToSteckmanRidgeAffiliateMember2021-09-300000356309njr:NjresToSteckmanRidgeAfffiliateMember2022-09-300000356309njr:NjresToSteckmanRidgeAfffiliateMember2021-09-300000356309njr:NJNGToAdelphiaAffiliateMembernjr:TransportationPrecedentAgreementOneMember2021-10-012022-09-300000356309njr:NJNGToAdelphiaAffiliateMember2021-10-012022-09-30njr:dekatherm0000356309njr:LeafRiverEnergyCenterLLCMember2021-10-012022-09-300000356309njr:NJNGAndCleanEnergyVenturesToPPAMember2021-03-012021-03-310000356309njr:NJNGToNJRSubsidiariesMember2021-07-310000356309njr:NJNGAndCleanEnergyVenturesToPPAMember2022-06-012022-06-300000356309njr:NJNGToAdelphiaAffiliateMembernjr:TransportationPrecedentAgreementTwoMember2021-10-012022-09-300000356309us-gaap:ValuationAllowanceOfDeferredTaxAssetsMember2021-09-300000356309us-gaap:ValuationAllowanceOfDeferredTaxAssetsMember2021-10-012022-09-300000356309us-gaap:ValuationAllowanceOfDeferredTaxAssetsMember2022-09-300000356309us-gaap:AllowanceForCreditLossMember2021-09-300000356309us-gaap:AllowanceForCreditLossMember2021-10-012022-09-300000356309us-gaap:AllowanceForCreditLossMember2022-09-300000356309us-gaap:ValuationAllowanceOfDeferredTaxAssetsMember2020-09-300000356309us-gaap:ValuationAllowanceOfDeferredTaxAssetsMember2020-10-012021-09-300000356309us-gaap:AllowanceForCreditLossMember2020-09-300000356309us-gaap:AllowanceForCreditLossMember2020-10-012021-09-300000356309us-gaap:ValuationAllowanceOfDeferredTaxAssetsMember2019-09-300000356309us-gaap:ValuationAllowanceOfDeferredTaxAssetsMember2019-10-012020-09-300000356309us-gaap:AllowanceForCreditLossMember2019-09-300000356309us-gaap:AllowanceForCreditLossMember2019-10-012020-09-30