false
Q3
0000104918
--12-31
true
true
true
true
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2.51
4.77
3.97
140000
310000
0000104918
2020-01-01
2020-09-30
xbrli:shares
0000104918
2020-10-30
iso4217:USD
0000104918
2020-07-01
2020-09-30
0000104918
2019-07-01
2019-09-30
0000104918
2019-01-01
2019-09-30
iso4217:USD
xbrli:shares
0000104918
2020-09-30
0000104918
2019-12-31
0000104918
2018-12-31
0000104918
2019-09-30
0000104918
us-gaap:CommonStockMember
2020-06-30
0000104918
us-gaap:CommonStockMember
2019-06-30
0000104918
us-gaap:CommonStockMember
2019-12-31
0000104918
us-gaap:CommonStockMember
2018-12-31
0000104918
us-gaap:CommonStockMember
2020-07-01
2020-09-30
0000104918
us-gaap:CommonStockMember
2019-07-01
2019-09-30
0000104918
us-gaap:CommonStockMember
2020-01-01
2020-09-30
0000104918
us-gaap:CommonStockMember
2019-01-01
2019-09-30
0000104918
us-gaap:CommonStockMember
2020-09-30
0000104918
us-gaap:CommonStockMember
2019-09-30
0000104918
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2020-06-30
0000104918
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2019-06-30
0000104918
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2019-12-31
0000104918
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2018-12-31
0000104918
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2020-07-01
2020-09-30
0000104918
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2019-07-01
2019-09-30
0000104918
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2020-01-01
2020-09-30
0000104918
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2019-01-01
2019-09-30
0000104918
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2020-09-30
0000104918
us-gaap:AccumulatedOtherComprehensiveIncomeMember
2019-09-30
0000104918
us-gaap:RetainedEarningsMember
2020-06-30
0000104918
us-gaap:RetainedEarningsMember
2019-06-30
0000104918
us-gaap:RetainedEarningsMember
2019-12-31
0000104918
us-gaap:RetainedEarningsMember
2018-12-31
0000104918
us-gaap:RetainedEarningsMember
2020-07-01
2020-09-30
0000104918
us-gaap:RetainedEarningsMember
2019-07-01
2019-09-30
0000104918
us-gaap:RetainedEarningsMember
2020-01-01
2020-09-30
0000104918
us-gaap:RetainedEarningsMember
2019-01-01
2019-09-30
0000104918
us-gaap:RetainedEarningsMember
2020-09-30
0000104918
us-gaap:RetainedEarningsMember
2019-09-30
0000104918
us-gaap:NoncontrollingInterestMember
2018-12-31
0000104918
ava:COVID19Member
2020-01-01
2020-09-30
0000104918
us-gaap:AccountingStandardsUpdate201613Member
2020-09-30
0000104918
us-gaap:AccountingStandardsUpdate201813Member
2020-09-30
0000104918
us-gaap:EnergyRelatedDerivativeMember
2020-09-30
0000104918
ava:DecouplingMember
2020-09-30
0000104918
us-gaap:PensionAndOtherPostretirementPlansCostsMember
2020-09-30
0000104918
us-gaap:DeferredDerivativeGainLossMember
2020-09-30
0000104918
us-gaap:DeferredIncomeTaxChargesMember
2020-09-30
0000104918
ava:RegulatoryAssetSettlementMember
2020-09-30
0000104918
ava:AFUDCAboveFERCAllowedRateMember
2020-09-30
0000104918
ava:DemandSideManagementProgramsMember
2020-09-30
0000104918
us-gaap:AssetImpairmentForRegulatoryActionMember
2020-09-30
0000104918
us-gaap:OtherRegulatoryAssetsLiabilitiesMember
2020-09-30
0000104918
us-gaap:EnergyRelatedDerivativeMember
2019-12-31
0000104918
ava:DecouplingMember
2019-12-31
0000104918
us-gaap:PensionAndOtherPostretirementPlansCostsMember
2019-12-31
0000104918
us-gaap:DeferredDerivativeGainLossMember
2019-12-31
0000104918
us-gaap:DeferredIncomeTaxChargesMember
2019-12-31
0000104918
ava:RegulatoryAssetSettlementMember
2019-12-31
0000104918
ava:AFUDCAboveFERCAllowedRateMember
2019-12-31
0000104918
ava:DemandSideManagementProgramsMember
2019-12-31
0000104918
us-gaap:AssetImpairmentForRegulatoryActionMember
2019-12-31
0000104918
us-gaap:OtherRegulatoryAssetsLiabilitiesMember
2019-12-31
0000104918
us-gaap:DeferredIncomeTaxChargesMember
2020-09-30
0000104918
ava:NaturalGasDeferralsMember
2020-09-30
0000104918
ava:PowerDeferralsRegulatoryLiabilityMember
2020-09-30
0000104918
ava:DecouplingMember
2020-09-30
0000104918
ava:ProvisionforRateRefundsMember
2020-09-30
0000104918
us-gaap:RemovalCostsMember
2020-09-30
0000104918
us-gaap:DeferredDerivativeGainLossMember
2020-09-30
0000104918
us-gaap:OtherRegulatoryAssetsLiabilitiesMember
2020-09-30
0000104918
us-gaap:DeferredIncomeTaxChargesMember
2019-12-31
0000104918
ava:NaturalGasDeferralsMember
2019-12-31
0000104918
ava:PowerDeferralsRegulatoryLiabilityMember
2019-12-31
0000104918
ava:DecouplingMember
2019-12-31
0000104918
ava:ProvisionforRateRefundsMember
2019-12-31
0000104918
us-gaap:RemovalCostsMember
2019-12-31
0000104918
us-gaap:DeferredDerivativeGainLossMember
2019-12-31
0000104918
us-gaap:OtherRegulatoryAssetsLiabilitiesMember
2019-12-31
0000104918
ava:AvistaUtilitiesMember
ava:RevenuefromContractswithCustomersMember
2020-07-01
2020-09-30
0000104918
ava:AvistaUtilitiesMember
ava:RevenuefromContractswithCustomersMember
2019-07-01
2019-09-30
0000104918
ava:AvistaUtilitiesMember
ava:RevenuefromContractswithCustomersMember
2020-01-01
2020-09-30
0000104918
ava:AvistaUtilitiesMember
ava:RevenuefromContractswithCustomersMember
2019-01-01
2019-09-30
0000104918
ava:AvistaUtilitiesMember
ava:DerivativeRevenuesMember
2020-07-01
2020-09-30
0000104918
ava:AvistaUtilitiesMember
ava:DerivativeRevenuesMember
2019-07-01
2019-09-30
0000104918
ava:AvistaUtilitiesMember
ava:DerivativeRevenuesMember
2020-01-01
2020-09-30
0000104918
ava:AvistaUtilitiesMember
ava:DerivativeRevenuesMember
2019-01-01
2019-09-30
0000104918
ava:AvistaUtilitiesMember
ava:AlternativeRevenueProgramsMember
2020-07-01
2020-09-30
0000104918
ava:AvistaUtilitiesMember
ava:AlternativeRevenueProgramsMember
2019-07-01
2019-09-30
0000104918
ava:AvistaUtilitiesMember
ava:AlternativeRevenueProgramsMember
2020-01-01
2020-09-30
0000104918
ava:AvistaUtilitiesMember
ava:AlternativeRevenueProgramsMember
2019-01-01
2019-09-30
0000104918
ava:AvistaUtilitiesMember
ava:ProvisionforRateRefundsMember
2020-07-01
2020-09-30
0000104918
ava:AvistaUtilitiesMember
ava:ProvisionforRateRefundsMember
2019-07-01
2019-09-30
0000104918
ava:AvistaUtilitiesMember
ava:ProvisionforRateRefundsMember
2020-01-01
2020-09-30
0000104918
ava:AvistaUtilitiesMember
ava:ProvisionforRateRefundsMember
2019-01-01
2019-09-30
0000104918
ava:AvistaUtilitiesMember
ava:OtherUtilityRevenuesMember
2020-07-01
2020-09-30
0000104918
ava:AvistaUtilitiesMember
ava:OtherUtilityRevenuesMember
2019-07-01
2019-09-30
0000104918
ava:AvistaUtilitiesMember
ava:OtherUtilityRevenuesMember
2020-01-01
2020-09-30
0000104918
ava:AvistaUtilitiesMember
ava:OtherUtilityRevenuesMember
2019-01-01
2019-09-30
0000104918
ava:AvistaUtilitiesMember
2020-07-01
2020-09-30
0000104918
ava:AvistaUtilitiesMember
2019-07-01
2019-09-30
0000104918
ava:AvistaUtilitiesMember
2020-01-01
2020-09-30
0000104918
ava:AvistaUtilitiesMember
2019-01-01
2019-09-30
0000104918
ava:AlaskaElectricLightPowerMember
ava:RevenuefromContractswithCustomersMember
2020-07-01
2020-09-30
0000104918
ava:AlaskaElectricLightPowerMember
ava:RevenuefromContractswithCustomersMember
2019-07-01
2019-09-30
0000104918
ava:AlaskaElectricLightPowerMember
ava:RevenuefromContractswithCustomersMember
2020-01-01
2020-09-30
0000104918
ava:AlaskaElectricLightPowerMember
ava:RevenuefromContractswithCustomersMember
2019-01-01
2019-09-30
0000104918
ava:AlaskaElectricLightPowerMember
ava:ProvisionforRateRefundsMember
2020-07-01
2020-09-30
0000104918
ava:AlaskaElectricLightPowerMember
ava:ProvisionforRateRefundsMember
2019-07-01
2019-09-30
0000104918
ava:AlaskaElectricLightPowerMember
ava:ProvisionforRateRefundsMember
2020-01-01
2020-09-30
0000104918
ava:AlaskaElectricLightPowerMember
ava:ProvisionforRateRefundsMember
2019-01-01
2019-09-30
0000104918
ava:AlaskaElectricLightPowerMember
ava:OtherUtilityRevenuesMember
2020-07-01
2020-09-30
0000104918
ava:AlaskaElectricLightPowerMember
ava:OtherUtilityRevenuesMember
2019-07-01
2019-09-30
0000104918
ava:AlaskaElectricLightPowerMember
ava:OtherUtilityRevenuesMember
2020-01-01
2020-09-30
0000104918
ava:AlaskaElectricLightPowerMember
ava:OtherUtilityRevenuesMember
2019-01-01
2019-09-30
0000104918
ava:AlaskaElectricLightPowerMember
2020-07-01
2020-09-30
0000104918
ava:AlaskaElectricLightPowerMember
2019-07-01
2019-09-30
0000104918
ava:AlaskaElectricLightPowerMember
2020-01-01
2020-09-30
0000104918
ava:AlaskaElectricLightPowerMember
2019-01-01
2019-09-30
0000104918
us-gaap:CorporateAndOtherMember
ava:RevenuefromContractswithCustomersMember
2020-07-01
2020-09-30
0000104918
us-gaap:CorporateAndOtherMember
ava:RevenuefromContractswithCustomersMember
2019-07-01
2019-09-30
0000104918
us-gaap:CorporateAndOtherMember
ava:RevenuefromContractswithCustomersMember
2020-01-01
2020-09-30
0000104918
us-gaap:CorporateAndOtherMember
ava:RevenuefromContractswithCustomersMember
2019-01-01
2019-09-30
0000104918
us-gaap:CorporateAndOtherMember
ava:OtherRevenuesMember
2020-07-01
2020-09-30
0000104918
us-gaap:CorporateAndOtherMember
ava:OtherRevenuesMember
2019-07-01
2019-09-30
0000104918
us-gaap:CorporateAndOtherMember
ava:OtherRevenuesMember
2020-01-01
2020-09-30
0000104918
us-gaap:CorporateAndOtherMember
ava:OtherRevenuesMember
2019-01-01
2019-09-30
0000104918
us-gaap:CorporateAndOtherMember
2020-07-01
2020-09-30
0000104918
us-gaap:CorporateAndOtherMember
2019-07-01
2019-09-30
0000104918
us-gaap:CorporateAndOtherMember
2020-01-01
2020-09-30
0000104918
us-gaap:CorporateAndOtherMember
2019-01-01
2019-09-30
0000104918
ava:ResidentialElectricMember
ava:AvistaUtilitiesMember
2020-07-01
2020-09-30
0000104918
ava:ResidentialElectricMember
ava:AlaskaElectricLightPowerMember
2020-07-01
2020-09-30
0000104918
ava:ResidentialElectricMember
2020-07-01
2020-09-30
0000104918
ava:ResidentialElectricMember
ava:AvistaUtilitiesMember
2019-07-01
2019-09-30
0000104918
ava:ResidentialElectricMember
ava:AlaskaElectricLightPowerMember
2019-07-01
2019-09-30
0000104918
ava:ResidentialElectricMember
2019-07-01
2019-09-30
0000104918
ava:CommercialandGovernmentalElectricMember
ava:AvistaUtilitiesMember
2020-07-01
2020-09-30
0000104918
ava:CommercialandGovernmentalElectricMember
ava:AlaskaElectricLightPowerMember
2020-07-01
2020-09-30
0000104918
ava:CommercialandGovernmentalElectricMember
2020-07-01
2020-09-30
0000104918
ava:CommercialandGovernmentalElectricMember
ava:AvistaUtilitiesMember
2019-07-01
2019-09-30
0000104918
ava:CommercialandGovernmentalElectricMember
ava:AlaskaElectricLightPowerMember
2019-07-01
2019-09-30
0000104918
ava:CommercialandGovernmentalElectricMember
2019-07-01
2019-09-30
0000104918
ava:IndustrialElectricMember
ava:AvistaUtilitiesMember
2020-07-01
2020-09-30
0000104918
ava:IndustrialElectricMember
ava:AlaskaElectricLightPowerMember
2020-07-01
2020-09-30
0000104918
ava:IndustrialElectricMember
2020-07-01
2020-09-30
0000104918
ava:IndustrialElectricMember
ava:AvistaUtilitiesMember
2019-07-01
2019-09-30
0000104918
ava:IndustrialElectricMember
ava:AlaskaElectricLightPowerMember
2019-07-01
2019-09-30
0000104918
ava:IndustrialElectricMember
2019-07-01
2019-09-30
0000104918
ava:PublicStreetandHighwayLightingElectricMember
ava:AvistaUtilitiesMember
2020-07-01
2020-09-30
0000104918
ava:PublicStreetandHighwayLightingElectricMember
ava:AlaskaElectricLightPowerMember
2020-07-01
2020-09-30
0000104918
ava:PublicStreetandHighwayLightingElectricMember
2020-07-01
2020-09-30
0000104918
ava:PublicStreetandHighwayLightingElectricMember
ava:AvistaUtilitiesMember
2019-07-01
2019-09-30
0000104918
ava:PublicStreetandHighwayLightingElectricMember
ava:AlaskaElectricLightPowerMember
2019-07-01
2019-09-30
0000104918
ava:PublicStreetandHighwayLightingElectricMember
2019-07-01
2019-09-30
0000104918
ava:RetailElectricMember
ava:AvistaUtilitiesMember
2020-07-01
2020-09-30
0000104918
ava:RetailElectricMember
ava:AlaskaElectricLightPowerMember
2020-07-01
2020-09-30
0000104918
ava:RetailElectricMember
2020-07-01
2020-09-30
0000104918
ava:RetailElectricMember
ava:AvistaUtilitiesMember
2019-07-01
2019-09-30
0000104918
ava:RetailElectricMember
ava:AlaskaElectricLightPowerMember
2019-07-01
2019-09-30
0000104918
ava:RetailElectricMember
2019-07-01
2019-09-30
0000104918
ava:TransmissionElectricMember
ava:AvistaUtilitiesMember
2020-07-01
2020-09-30
0000104918
ava:TransmissionElectricMember
ava:AlaskaElectricLightPowerMember
2020-07-01
2020-09-30
0000104918
ava:TransmissionElectricMember
2020-07-01
2020-09-30
0000104918
ava:TransmissionElectricMember
ava:AvistaUtilitiesMember
2019-07-01
2019-09-30
0000104918
ava:TransmissionElectricMember
ava:AlaskaElectricLightPowerMember
2019-07-01
2019-09-30
0000104918
ava:TransmissionElectricMember
2019-07-01
2019-09-30
0000104918
ava:OtherElectricMember
ava:AvistaUtilitiesMember
2020-07-01
2020-09-30
0000104918
ava:OtherElectricMember
ava:AlaskaElectricLightPowerMember
2020-07-01
2020-09-30
0000104918
ava:OtherElectricMember
2020-07-01
2020-09-30
0000104918
ava:OtherElectricMember
ava:AvistaUtilitiesMember
2019-07-01
2019-09-30
0000104918
ava:OtherElectricMember
ava:AlaskaElectricLightPowerMember
2019-07-01
2019-09-30
0000104918
ava:OtherElectricMember
2019-07-01
2019-09-30
0000104918
ava:ElectricMember
ava:AvistaUtilitiesMember
2020-07-01
2020-09-30
0000104918
ava:ElectricMember
ava:AlaskaElectricLightPowerMember
2020-07-01
2020-09-30
0000104918
ava:ElectricMember
2020-07-01
2020-09-30
0000104918
ava:ElectricMember
ava:AvistaUtilitiesMember
2019-07-01
2019-09-30
0000104918
ava:ElectricMember
ava:AlaskaElectricLightPowerMember
2019-07-01
2019-09-30
0000104918
ava:ElectricMember
2019-07-01
2019-09-30
0000104918
ava:ResidentialElectricMember
ava:AvistaUtilitiesMember
2020-01-01
2020-09-30
0000104918
ava:ResidentialElectricMember
ava:AlaskaElectricLightPowerMember
2020-01-01
2020-09-30
0000104918
ava:ResidentialElectricMember
2020-01-01
2020-09-30
0000104918
ava:ResidentialElectricMember
ava:AvistaUtilitiesMember
2019-01-01
2019-09-30
0000104918
ava:ResidentialElectricMember
ava:AlaskaElectricLightPowerMember
2019-01-01
2019-09-30
0000104918
ava:ResidentialElectricMember
2019-01-01
2019-09-30
0000104918
ava:CommercialandGovernmentalElectricMember
ava:AvistaUtilitiesMember
2020-01-01
2020-09-30
0000104918
ava:CommercialandGovernmentalElectricMember
ava:AlaskaElectricLightPowerMember
2020-01-01
2020-09-30
0000104918
ava:CommercialandGovernmentalElectricMember
2020-01-01
2020-09-30
0000104918
ava:CommercialandGovernmentalElectricMember
ava:AvistaUtilitiesMember
2019-01-01
2019-09-30
0000104918
ava:CommercialandGovernmentalElectricMember
ava:AlaskaElectricLightPowerMember
2019-01-01
2019-09-30
0000104918
ava:CommercialandGovernmentalElectricMember
2019-01-01
2019-09-30
0000104918
ava:IndustrialElectricMember
ava:AvistaUtilitiesMember
2020-01-01
2020-09-30
0000104918
ava:IndustrialElectricMember
ava:AlaskaElectricLightPowerMember
2020-01-01
2020-09-30
0000104918
ava:IndustrialElectricMember
2020-01-01
2020-09-30
0000104918
ava:IndustrialElectricMember
ava:AvistaUtilitiesMember
2019-01-01
2019-09-30
0000104918
ava:IndustrialElectricMember
ava:AlaskaElectricLightPowerMember
2019-01-01
2019-09-30
0000104918
ava:IndustrialElectricMember
2019-01-01
2019-09-30
0000104918
ava:PublicStreetandHighwayLightingElectricMember
ava:AvistaUtilitiesMember
2020-01-01
2020-09-30
0000104918
ava:PublicStreetandHighwayLightingElectricMember
ava:AlaskaElectricLightPowerMember
2020-01-01
2020-09-30
0000104918
ava:PublicStreetandHighwayLightingElectricMember
2020-01-01
2020-09-30
0000104918
ava:PublicStreetandHighwayLightingElectricMember
ava:AvistaUtilitiesMember
2019-01-01
2019-09-30
0000104918
ava:PublicStreetandHighwayLightingElectricMember
ava:AlaskaElectricLightPowerMember
2019-01-01
2019-09-30
0000104918
ava:PublicStreetandHighwayLightingElectricMember
2019-01-01
2019-09-30
0000104918
ava:RetailElectricMember
ava:AvistaUtilitiesMember
2020-01-01
2020-09-30
0000104918
ava:RetailElectricMember
ava:AlaskaElectricLightPowerMember
2020-01-01
2020-09-30
0000104918
ava:RetailElectricMember
2020-01-01
2020-09-30
0000104918
ava:RetailElectricMember
ava:AvistaUtilitiesMember
2019-01-01
2019-09-30
0000104918
ava:RetailElectricMember
ava:AlaskaElectricLightPowerMember
2019-01-01
2019-09-30
0000104918
ava:RetailElectricMember
2019-01-01
2019-09-30
0000104918
ava:TransmissionElectricMember
ava:AvistaUtilitiesMember
2020-01-01
2020-09-30
0000104918
ava:TransmissionElectricMember
ava:AlaskaElectricLightPowerMember
2020-01-01
2020-09-30
0000104918
ava:TransmissionElectricMember
2020-01-01
2020-09-30
0000104918
ava:TransmissionElectricMember
ava:AvistaUtilitiesMember
2019-01-01
2019-09-30
0000104918
ava:TransmissionElectricMember
ava:AlaskaElectricLightPowerMember
2019-01-01
2019-09-30
0000104918
ava:TransmissionElectricMember
2019-01-01
2019-09-30
0000104918
ava:OtherElectricMember
ava:AvistaUtilitiesMember
2020-01-01
2020-09-30
0000104918
ava:OtherElectricMember
ava:AlaskaElectricLightPowerMember
2020-01-01
2020-09-30
0000104918
ava:OtherElectricMember
2020-01-01
2020-09-30
0000104918
ava:OtherElectricMember
ava:AvistaUtilitiesMember
2019-01-01
2019-09-30
0000104918
ava:OtherElectricMember
ava:AlaskaElectricLightPowerMember
2019-01-01
2019-09-30
0000104918
ava:OtherElectricMember
2019-01-01
2019-09-30
0000104918
ava:ElectricMember
ava:AvistaUtilitiesMember
2020-01-01
2020-09-30
0000104918
ava:ElectricMember
ava:AlaskaElectricLightPowerMember
2020-01-01
2020-09-30
0000104918
ava:ElectricMember
2020-01-01
2020-09-30
0000104918
ava:ElectricMember
ava:AvistaUtilitiesMember
2019-01-01
2019-09-30
0000104918
ava:ElectricMember
ava:AlaskaElectricLightPowerMember
2019-01-01
2019-09-30
0000104918
ava:ElectricMember
2019-01-01
2019-09-30
0000104918
ava:ResidentialNaturalGasMember
ava:AvistaUtilitiesMember
2020-07-01
2020-09-30
0000104918
ava:ResidentialNaturalGasMember
ava:AvistaUtilitiesMember
2019-07-01
2019-09-30
0000104918
ava:CommercialAndGovernmentalNaturalGasMember
ava:AvistaUtilitiesMember
2020-07-01
2020-09-30
0000104918
ava:CommercialAndGovernmentalNaturalGasMember
ava:AvistaUtilitiesMember
2019-07-01
2019-09-30
0000104918
ava:IndustrialandInterruptibleNaturalGasMember
ava:AvistaUtilitiesMember
2020-07-01
2020-09-30
0000104918
ava:IndustrialandInterruptibleNaturalGasMember
ava:AvistaUtilitiesMember
2019-07-01
2019-09-30
0000104918
ava:RetailNaturalGasMember
ava:AvistaUtilitiesMember
2020-07-01
2020-09-30
0000104918
ava:RetailNaturalGasMember
ava:AvistaUtilitiesMember
2019-07-01
2019-09-30
0000104918
ava:TransmissionNaturalGasMember
ava:AvistaUtilitiesMember
2020-07-01
2020-09-30
0000104918
ava:TransmissionNaturalGasMember
ava:AvistaUtilitiesMember
2019-07-01
2019-09-30
0000104918
ava:OtherNaturalGasMember
ava:AvistaUtilitiesMember
2020-07-01
2020-09-30
0000104918
ava:OtherNaturalGasMember
ava:AvistaUtilitiesMember
2019-07-01
2019-09-30
0000104918
ava:NaturalGasMember
ava:AvistaUtilitiesMember
2020-07-01
2020-09-30
0000104918
ava:NaturalGasMember
ava:AvistaUtilitiesMember
2019-07-01
2019-09-30
0000104918
ava:ResidentialNaturalGasMember
ava:AvistaUtilitiesMember
2020-01-01
2020-09-30
0000104918
ava:ResidentialNaturalGasMember
ava:AvistaUtilitiesMember
2019-01-01
2019-09-30
0000104918
ava:CommercialAndGovernmentalNaturalGasMember
ava:AvistaUtilitiesMember
2020-01-01
2020-09-30
0000104918
ava:CommercialAndGovernmentalNaturalGasMember
ava:AvistaUtilitiesMember
2019-01-01
2019-09-30
0000104918
ava:IndustrialandInterruptibleNaturalGasMember
ava:AvistaUtilitiesMember
2020-01-01
2020-09-30
0000104918
ava:IndustrialandInterruptibleNaturalGasMember
ava:AvistaUtilitiesMember
2019-01-01
2019-09-30
0000104918
ava:RetailNaturalGasMember
ava:AvistaUtilitiesMember
2020-01-01
2020-09-30
0000104918
ava:RetailNaturalGasMember
ava:AvistaUtilitiesMember
2019-01-01
2019-09-30
0000104918
ava:TransmissionNaturalGasMember
ava:AvistaUtilitiesMember
2020-01-01
2020-09-30
0000104918
ava:TransmissionNaturalGasMember
ava:AvistaUtilitiesMember
2019-01-01
2019-09-30
0000104918
ava:OtherNaturalGasMember
ava:AvistaUtilitiesMember
2020-01-01
2020-09-30
0000104918
ava:OtherNaturalGasMember
ava:AvistaUtilitiesMember
2019-01-01
2019-09-30
0000104918
ava:NaturalGasMember
ava:AvistaUtilitiesMember
2020-01-01
2020-09-30
0000104918
ava:NaturalGasMember
ava:AvistaUtilitiesMember
2019-01-01
2019-09-30
utr:MWh
0000104918
ava:PurchaseMember
ava:PhysicalMember
ava:ElectricDerivativeMember
2020-01-01
2020-09-30
0000104918
ava:PurchaseMember
ava:FinancialMember
ava:ElectricDerivativeMember
2020-01-01
2020-09-30
utr:MMBTU
0000104918
ava:PurchaseMember
ava:PhysicalMember
ava:GasDerivativeMember
2020-01-01
2020-09-30
0000104918
ava:PurchaseMember
ava:FinancialMember
ava:GasDerivativeMember
2020-01-01
2020-09-30
0000104918
us-gaap:SalesMember
ava:PhysicalMember
ava:ElectricDerivativeMember
2020-01-01
2020-09-30
0000104918
us-gaap:SalesMember
ava:FinancialMember
ava:ElectricDerivativeMember
2020-01-01
2020-09-30
0000104918
us-gaap:SalesMember
ava:PhysicalMember
ava:GasDerivativeMember
2020-01-01
2020-09-30
0000104918
us-gaap:SalesMember
ava:FinancialMember
ava:GasDerivativeMember
2020-01-01
2020-09-30
ava:frequency
0000104918
ava:PurchaseMember
ava:PhysicalMember
ava:ElectricDerivativeMember
2019-01-01
2019-12-31
0000104918
ava:PurchaseMember
ava:FinancialMember
ava:ElectricDerivativeMember
2019-01-01
2019-12-31
0000104918
ava:PurchaseMember
ava:PhysicalMember
ava:GasDerivativeMember
2019-01-01
2019-12-31
0000104918
ava:PurchaseMember
ava:FinancialMember
ava:GasDerivativeMember
2019-01-01
2019-12-31
0000104918
us-gaap:SalesMember
ava:PhysicalMember
ava:ElectricDerivativeMember
2019-01-01
2019-12-31
0000104918
us-gaap:SalesMember
ava:FinancialMember
ava:ElectricDerivativeMember
2019-01-01
2019-12-31
0000104918
us-gaap:SalesMember
ava:PhysicalMember
ava:GasDerivativeMember
2019-01-01
2019-12-31
0000104918
us-gaap:SalesMember
ava:FinancialMember
ava:GasDerivativeMember
2019-01-01
2019-12-31
0000104918
country:CA
2020-01-01
2020-09-30
ava:derivative_contracts
0000104918
currency:USD
us-gaap:ForeignExchangeContractMember
2020-09-30
0000104918
currency:USD
us-gaap:ForeignExchangeContractMember
2019-12-31
iso4217:CAD
0000104918
currency:CAD
us-gaap:ForeignExchangeContractMember
2020-09-30
0000104918
currency:CAD
us-gaap:ForeignExchangeContractMember
2019-12-31
ava:Contract
0000104918
ava:TwoThousandTwentyOneMember
us-gaap:InterestRateSwapMember
2020-09-30
0000104918
ava:TwoThousandTwentyTwoMember
us-gaap:InterestRateSwapMember
2020-09-30
0000104918
ava:TwoThousandTwentyThreeMember
us-gaap:InterestRateSwapMember
2020-09-30
0000104918
ava:TwoThousandTwentyMember
us-gaap:InterestRateSwapMember
2019-12-31
0000104918
ava:TwoThousandTwentyOneMember
us-gaap:InterestRateSwapMember
2019-12-31
0000104918
ava:TwoThousandTwentyTwoMember
us-gaap:InterestRateSwapMember
2019-12-31
0000104918
ava:TwoThousandTwentyOneMember
us-gaap:InterestRateSwapMember
2020-01-01
2020-09-30
0000104918
ava:TwoThousandTwentyTwoMember
us-gaap:InterestRateSwapMember
2020-01-01
2020-09-30
0000104918
ava:TwoThousandTwentyThreeMember
us-gaap:InterestRateSwapMember
2020-01-01
2020-09-30
0000104918
ava:TwoThousandTwentyMember
us-gaap:InterestRateSwapMember
2019-01-01
2019-12-31
0000104918
ava:TwoThousandTwentyOneMember
us-gaap:InterestRateSwapMember
2019-01-01
2019-12-31
0000104918
ava:TwoThousandTwentyTwoMember
us-gaap:InterestRateSwapMember
2019-01-01
2019-12-31
0000104918
us-gaap:InterestRateSwapMember
2020-06-29
2020-06-30
0000104918
us-gaap:InterestRateSwapMember
2020-07-01
2020-07-31
0000104918
us-gaap:OtherCurrentLiabilitiesMember
us-gaap:ForeignExchangeContractMember
2020-09-30
0000104918
us-gaap:OtherNoncurrentLiabilitiesMember
us-gaap:InterestRateSwapMember
2020-09-30
0000104918
us-gaap:OtherCurrentAssetsMember
us-gaap:CommodityContractMember
2020-09-30
0000104918
ava:OtherPropertyAndInvestmentsNetAndOtherNoncurrentAssetsMember
us-gaap:CommodityContractMember
2020-09-30
0000104918
us-gaap:OtherCurrentLiabilitiesMember
us-gaap:CommodityContractMember
2020-09-30
0000104918
us-gaap:OtherCurrentAssetsMember
us-gaap:ForeignExchangeContractMember
2019-12-31
0000104918
us-gaap:OtherCurrentAssetsMember
us-gaap:InterestRateSwapMember
2019-12-31
0000104918
us-gaap:OtherCurrentLiabilitiesMember
us-gaap:InterestRateSwapMember
2019-12-31
0000104918
us-gaap:OtherNoncurrentLiabilitiesMember
us-gaap:InterestRateSwapMember
2019-12-31
0000104918
us-gaap:OtherCurrentAssetsMember
us-gaap:CommodityContractMember
2019-12-31
0000104918
ava:OtherPropertyAndInvestmentsNetAndOtherNoncurrentAssetsMember
us-gaap:CommodityContractMember
2019-12-31
0000104918
us-gaap:OtherCurrentLiabilitiesMember
us-gaap:CommodityContractMember
2019-12-31
0000104918
us-gaap:OtherNoncurrentLiabilitiesMember
us-gaap:CommodityContractMember
2019-12-31
0000104918
us-gaap:CommodityContractMember
2019-12-31
0000104918
us-gaap:CommodityContractMember
2020-09-30
0000104918
us-gaap:InterestRateSwapMember
2020-09-30
0000104918
us-gaap:InterestRateSwapMember
2019-12-31
0000104918
us-gaap:PensionPlansDefinedBenefitMember
2020-09-30
0000104918
us-gaap:PensionPlansDefinedBenefitMember
2020-07-01
2020-09-30
0000104918
us-gaap:PensionPlansDefinedBenefitMember
2019-07-01
2019-09-30
0000104918
us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember
2020-07-01
2020-09-30
0000104918
us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember
2019-07-01
2019-09-30
0000104918
us-gaap:PensionPlansDefinedBenefitMember
2020-01-01
2020-09-30
0000104918
us-gaap:PensionPlansDefinedBenefitMember
2019-01-01
2019-09-30
0000104918
us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember
2020-01-01
2020-09-30
0000104918
us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember
2019-01-01
2019-09-30
xbrli:pure
0000104918
us-gaap:DeferredIncomeTaxChargesMember
ava:WashingtonUtilitiesAndTransportationCommissionMember
2020-03-31
0000104918
ava:WashingtonUtilitiesAndTransportationCommissionMember
2020-03-01
2020-03-31
0000104918
us-gaap:DeferredIncomeTaxChargesMember
ava:IdahoPublicUtilitiesCommissionMember
2019-03-31
0000104918
ava:IdahoPublicUtilitiesCommissionMember
2019-03-01
2019-03-31
0000104918
us-gaap:SubsequentEventMember
2020-10-01
2020-10-31
0000104918
ava:AvistaUtilitiesMember
2014-04-30
0000104918
ava:AvistaUtilitiesMember
2020-09-30
0000104918
ava:AvistaUtilitiesMember
2019-12-31
0000104918
ava:AlaskaElectricLightPowerMember
2014-07-01
0000104918
ava:AlaskaElectricLightPowerMember
2020-09-30
0000104918
ava:AlaskaElectricLightPowerMember
2019-12-31
0000104918
ava:AvistaUtilitiesMember
2020-04-06
0000104918
ava:AvistaUtilitiesMember
2020-04-06
2020-04-06
0000104918
ava:TwoThousandFiftyThreePointZeroSevenPercentMember
us-gaap:FirstMortgageMember
2020-09-30
0000104918
ava:TwoThousandFiftyThreePointZeroSevenPercentMember
us-gaap:FirstMortgageMember
2020-01-01
2020-09-30
0000104918
us-gaap:LineOfCreditMember
ava:TwoThousandFiftyThreePointZeroSevenPercentMember
2020-09-30
0000104918
1997-12-31
0000104918
us-gaap:TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember
1997-01-01
1997-12-31
0000104918
us-gaap:TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember
2020-01-01
2020-09-30
0000104918
us-gaap:TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember
srt:MinimumMember
2020-09-30
0000104918
us-gaap:TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember
srt:MinimumMember
2019-12-31
0000104918
us-gaap:TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember
srt:MaximumMember
2020-09-30
0000104918
us-gaap:TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember
srt:MaximumMember
2019-12-31
0000104918
us-gaap:TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember
2020-09-30
0000104918
us-gaap:TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember
2019-12-31
0000104918
1997-01-01
1997-12-31
0000104918
2000-01-01
2000-12-31
0000104918
ava:AvistaCorporationMember
2020-09-30
0000104918
us-gaap:FairValueInputsLevel2Member
us-gaap:CarryingReportedAmountFairValueDisclosureMember
2020-09-30
0000104918
us-gaap:FairValueInputsLevel3Member
us-gaap:CarryingReportedAmountFairValueDisclosureMember
2020-09-30
0000104918
us-gaap:FairValueInputsLevel3Member
us-gaap:CarryingReportedAmountFairValueDisclosureMember
srt:AffiliatedEntityMember
2020-09-30
0000104918
us-gaap:FairValueInputsLevel2Member
us-gaap:CarryingReportedAmountFairValueDisclosureMember
2019-12-31
0000104918
us-gaap:FairValueInputsLevel3Member
us-gaap:CarryingReportedAmountFairValueDisclosureMember
2019-12-31
0000104918
us-gaap:FairValueInputsLevel3Member
us-gaap:CarryingReportedAmountFairValueDisclosureMember
srt:AffiliatedEntityMember
2019-12-31
0000104918
us-gaap:FairValueInputsLevel2Member
us-gaap:EstimateOfFairValueFairValueDisclosureMember
2020-09-30
0000104918
us-gaap:FairValueInputsLevel3Member
us-gaap:EstimateOfFairValueFairValueDisclosureMember
2020-09-30
0000104918
us-gaap:FairValueInputsLevel3Member
us-gaap:EstimateOfFairValueFairValueDisclosureMember
srt:AffiliatedEntityMember
2020-09-30
0000104918
us-gaap:FairValueInputsLevel2Member
us-gaap:EstimateOfFairValueFairValueDisclosureMember
2019-12-31
0000104918
us-gaap:FairValueInputsLevel3Member
us-gaap:EstimateOfFairValueFairValueDisclosureMember
2019-12-31
0000104918
us-gaap:FairValueInputsLevel3Member
us-gaap:EstimateOfFairValueFairValueDisclosureMember
srt:AffiliatedEntityMember
2019-12-31
0000104918
ava:AlaskaElectricLightPowerMember
ava:FinanceLeaseMember
us-gaap:FairValueInputsLevel3Member
us-gaap:CarryingReportedAmountFairValueDisclosureMember
2020-09-30
0000104918
ava:AlaskaElectricLightPowerMember
ava:FinanceLeaseMember
us-gaap:FairValueInputsLevel3Member
us-gaap:EstimateOfFairValueFairValueDisclosureMember
2020-09-30
0000104918
ava:AlaskaElectricLightPowerMember
ava:FinanceLeaseMember
us-gaap:FairValueInputsLevel3Member
us-gaap:CarryingReportedAmountFairValueDisclosureMember
2019-12-31
0000104918
ava:AlaskaElectricLightPowerMember
ava:FinanceLeaseMember
us-gaap:FairValueInputsLevel3Member
us-gaap:EstimateOfFairValueFairValueDisclosureMember
2019-12-31
0000104918
us-gaap:MeasurementInputQuotedPriceMember
srt:MinimumMember
ava:SecuredandUnsecuredDebtMember
us-gaap:EstimateOfFairValueFairValueDisclosureMember
2020-09-30
0000104918
us-gaap:MeasurementInputQuotedPriceMember
srt:MaximumMember
ava:SecuredandUnsecuredDebtMember
us-gaap:EstimateOfFairValueFairValueDisclosureMember
2020-09-30
0000104918
us-gaap:MeasurementInputQuotedPriceMember
ava:SecuredandUnsecuredDebtMember
us-gaap:EstimateOfFairValueFairValueDisclosureMember
2020-09-30
0000104918
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:EnergyRelatedDerivativeMember
2020-09-30
0000104918
us-gaap:FairValueInputsLevel2Member
us-gaap:ForeignExchangeContractMember
us-gaap:FairValueMeasurementsRecurringMember
2020-09-30
0000104918
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:FixedIncomeFundsMember
2020-09-30
0000104918
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:FixedIncomeFundsMember
2020-09-30
0000104918
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:EquityFundsMember
2020-09-30
0000104918
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:EquityFundsMember
2020-09-30
0000104918
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsRecurringMember
2020-09-30
0000104918
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsRecurringMember
2020-09-30
0000104918
us-gaap:FairValueMeasurementsRecurringMember
2020-09-30
0000104918
us-gaap:FairValueInputsLevel3Member
ava:NaturalGasExchangeAgreementsMember
us-gaap:FairValueMeasurementsRecurringMember
2020-09-30
0000104918
us-gaap:FairValueInputsLevel2Member
us-gaap:InterestRateSwapMember
us-gaap:FairValueMeasurementsRecurringMember
2020-09-30
0000104918
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
2020-09-30
0000104918
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:EnergyRelatedDerivativeMember
2019-12-31
0000104918
us-gaap:FairValueInputsLevel3Member
ava:NaturalGasExchangeAgreementsMember
us-gaap:FairValueMeasurementsRecurringMember
2019-12-31
0000104918
us-gaap:FairValueInputsLevel2Member
us-gaap:ForeignExchangeContractMember
us-gaap:FairValueMeasurementsRecurringMember
2019-12-31
0000104918
us-gaap:FairValueInputsLevel2Member
us-gaap:InterestRateSwapMember
us-gaap:FairValueMeasurementsRecurringMember
2019-12-31
0000104918
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:FixedIncomeFundsMember
2019-12-31
0000104918
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:FixedIncomeFundsMember
2019-12-31
0000104918
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:EquityFundsMember
2019-12-31
0000104918
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:EquityFundsMember
2019-12-31
0000104918
us-gaap:FairValueInputsLevel1Member
us-gaap:FairValueMeasurementsRecurringMember
2019-12-31
0000104918
us-gaap:FairValueInputsLevel2Member
us-gaap:FairValueMeasurementsRecurringMember
2019-12-31
0000104918
us-gaap:FairValueInputsLevel3Member
us-gaap:FairValueMeasurementsRecurringMember
2019-12-31
0000104918
us-gaap:FairValueMeasurementsRecurringMember
2019-12-31
0000104918
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:EnergyRelatedDerivativeMember
2020-09-30
0000104918
us-gaap:ForeignExchangeContractMember
us-gaap:FairValueMeasurementsRecurringMember
2020-09-30
0000104918
us-gaap:FairValueMeasurementsRecurringMember
us-gaap:EnergyRelatedDerivativeMember
2019-12-31
0000104918
ava:NaturalGasExchangeAgreementsMember
us-gaap:FairValueMeasurementsRecurringMember
2019-12-31
0000104918
us-gaap:InterestRateSwapMember
us-gaap:FairValueMeasurementsRecurringMember
2019-12-31
0000104918
us-gaap:ForeignExchangeContractMember
us-gaap:FairValueMeasurementsRecurringMember
2019-12-31
0000104918
us-gaap:InterestRateSwapMember
us-gaap:FairValueMeasurementsRecurringMember
2020-09-30
0000104918
ava:NaturalGasExchangeAgreementsMember
us-gaap:FairValueMeasurementsRecurringMember
2020-09-30
0000104918
us-gaap:FixedIncomeSecuritiesMember
2020-09-30
0000104918
us-gaap:FixedIncomeSecuritiesMember
2019-12-31
iso4217:USD
utr:MMBTU
0000104918
us-gaap:ShortMember
srt:MinimumMember
ava:InternallyDerivedWeightedAverageCostOfGasMember
ava:NaturalGasExchangeAgreementsMember
2020-09-30
0000104918
us-gaap:ShortMember
srt:MaximumMember
ava:InternallyDerivedWeightedAverageCostOfGasMember
ava:NaturalGasExchangeAgreementsMember
2020-09-30
0000104918
us-gaap:ShortMember
srt:WeightedAverageMember
ava:InternallyDerivedWeightedAverageCostOfGasMember
ava:NaturalGasExchangeAgreementsMember
2020-09-30
0000104918
us-gaap:ShortMember
srt:MinimumMember
ava:InternallyDerivedWeightedAverageCostOfGasMember
ava:NaturalGasExchangeAgreementsMember
2020-01-01
2020-09-30
0000104918
us-gaap:ShortMember
srt:MaximumMember
ava:InternallyDerivedWeightedAverageCostOfGasMember
ava:NaturalGasExchangeAgreementsMember
2020-01-01
2020-09-30
0000104918
ava:NaturalGasExchangeAgreementsMember
us-gaap:FairValueInputsLevel3Member
2020-06-30
0000104918
us-gaap:FairValueInputsLevel3Member
2020-06-30
0000104918
ava:NaturalGasExchangeAgreementsMember
us-gaap:FairValueInputsLevel3Member
2020-07-01
2020-09-30
0000104918
us-gaap:FairValueInputsLevel3Member
2020-07-01
2020-09-30
0000104918
ava:NaturalGasExchangeAgreementsMember
us-gaap:FairValueInputsLevel3Member
2020-09-30
0000104918
us-gaap:FairValueInputsLevel3Member
2020-09-30
0000104918
ava:NaturalGasExchangeAgreementsMember
us-gaap:FairValueInputsLevel3Member
2019-06-30
0000104918
us-gaap:FairValueInputsLevel3Member
2019-06-30
0000104918
ava:NaturalGasExchangeAgreementsMember
us-gaap:FairValueInputsLevel3Member
2019-07-01
2019-09-30
0000104918
us-gaap:FairValueInputsLevel3Member
2019-07-01
2019-09-30
0000104918
ava:NaturalGasExchangeAgreementsMember
us-gaap:FairValueInputsLevel3Member
2019-09-30
0000104918
us-gaap:FairValueInputsLevel3Member
2019-09-30
0000104918
ava:NaturalGasExchangeAgreementsMember
us-gaap:FairValueInputsLevel3Member
2019-12-31
0000104918
us-gaap:FairValueInputsLevel3Member
2019-12-31
0000104918
ava:NaturalGasExchangeAgreementsMember
us-gaap:FairValueInputsLevel3Member
2020-01-01
2020-09-30
0000104918
us-gaap:FairValueInputsLevel3Member
2020-01-01
2020-09-30
0000104918
ava:NaturalGasExchangeAgreementsMember
us-gaap:FairValueInputsLevel3Member
2018-12-31
0000104918
ava:PowerExchangeAgreementsMember
us-gaap:FairValueInputsLevel3Member
2018-12-31
0000104918
us-gaap:FairValueInputsLevel3Member
2018-12-31
0000104918
ava:NaturalGasExchangeAgreementsMember
us-gaap:FairValueInputsLevel3Member
2019-01-01
2019-09-30
0000104918
ava:PowerExchangeAgreementsMember
us-gaap:FairValueInputsLevel3Member
2019-01-01
2019-09-30
0000104918
us-gaap:FairValueInputsLevel3Member
2019-01-01
2019-09-30
ava:Agreement
0000104918
ava:SalesAgencyAgreementMember
2020-04-01
2020-06-30
0000104918
us-gaap:CommonStockMember
ava:SalesAgencyAgreementMember
2020-07-01
2020-09-30
0000104918
us-gaap:CommonStockMember
ava:SalesAgencyAgreementMember
2020-01-01
2020-09-30
0000104918
ava:SalesAgencyAgreementMember
2020-09-30
0000104918
us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember
2020-07-01
2020-09-30
0000104918
us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember
2019-07-01
2019-09-30
0000104918
us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember
2020-01-01
2020-09-30
0000104918
us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember
2019-01-01
2019-09-30
0000104918
ava:ProvisionforRateRefundsMember
2020-03-31
0000104918
srt:NaturalGasReservesMember
ava:ProvisionforRateRefundsMember
2020-03-31
0000104918
ava:ProvisionforRateRefundsMember
us-gaap:ElectricityMember
2020-03-31
0000104918
srt:MaximumMember
us-gaap:DamageFromFireExplosionOrOtherHazardMember
ava:BoydsFireMember
2019-08-01
2019-08-31
utr:acre
0000104918
us-gaap:DamageFromFireExplosionOrOtherHazardMember
ava:LaborDayWindstormMember
2020-09-02
ava:Building
ava:Reportable_Segments
0000104918
us-gaap:OperatingSegmentsMember
ava:AvistaUtilitiesMember
ava:UtilityRevenueMember
2020-07-01
2020-09-30
0000104918
us-gaap:OperatingSegmentsMember
ava:AlaskaElectricLightPowerMember
ava:UtilityRevenueMember
2020-07-01
2020-09-30
0000104918
us-gaap:OperatingSegmentsMember
ava:UtilityRevenueMember
2020-07-01
2020-09-30
0000104918
us-gaap:CorporateNonSegmentMember
ava:NonUtilityRevenueMember
2020-07-01
2020-09-30
0000104918
us-gaap:IntersegmentEliminationMember
2020-07-01
2020-09-30
0000104918
us-gaap:OperatingSegmentsMember
ava:AvistaUtilitiesMember
ava:UtilityRevenueMember
2019-07-01
2019-09-30
0000104918
us-gaap:OperatingSegmentsMember
ava:AlaskaElectricLightPowerMember
ava:UtilityRevenueMember
2019-07-01
2019-09-30
0000104918
us-gaap:OperatingSegmentsMember
ava:UtilityRevenueMember
2019-07-01
2019-09-30
0000104918
us-gaap:CorporateNonSegmentMember
ava:NonUtilityRevenueMember
2019-07-01
2019-09-30
0000104918
us-gaap:IntersegmentEliminationMember
2019-07-01
2019-09-30
0000104918
us-gaap:OperatingSegmentsMember
ava:AvistaUtilitiesMember
ava:UtilityRevenueMember
2020-01-01
2020-09-30
0000104918
us-gaap:OperatingSegmentsMember
ava:AlaskaElectricLightPowerMember
ava:UtilityRevenueMember
2020-01-01
2020-09-30
0000104918
us-gaap:OperatingSegmentsMember
ava:UtilityRevenueMember
2020-01-01
2020-09-30
0000104918
us-gaap:CorporateNonSegmentMember
ava:NonUtilityRevenueMember
2020-01-01
2020-09-30
0000104918
us-gaap:IntersegmentEliminationMember
2020-01-01
2020-09-30
0000104918
us-gaap:OperatingSegmentsMember
ava:AvistaUtilitiesMember
ava:UtilityRevenueMember
2019-01-01
2019-09-30
0000104918
us-gaap:OperatingSegmentsMember
ava:AlaskaElectricLightPowerMember
ava:UtilityRevenueMember
2019-01-01
2019-09-30
0000104918
us-gaap:OperatingSegmentsMember
ava:UtilityRevenueMember
2019-01-01
2019-09-30
0000104918
us-gaap:CorporateNonSegmentMember
ava:NonUtilityRevenueMember
2019-01-01
2019-09-30
0000104918
us-gaap:IntersegmentEliminationMember
2019-01-01
2019-09-30
0000104918
us-gaap:OperatingSegmentsMember
ava:AvistaUtilitiesMember
ava:UtilityRevenueMember
2020-09-30
0000104918
us-gaap:OperatingSegmentsMember
ava:AlaskaElectricLightPowerMember
ava:UtilityRevenueMember
2020-09-30
0000104918
us-gaap:OperatingSegmentsMember
ava:UtilityRevenueMember
2020-09-30
0000104918
us-gaap:CorporateNonSegmentMember
ava:NonUtilityRevenueMember
2020-09-30
0000104918
us-gaap:IntersegmentEliminationMember
2020-09-30
0000104918
us-gaap:OperatingSegmentsMember
ava:AvistaUtilitiesMember
ava:UtilityRevenueMember
2019-12-31
0000104918
us-gaap:OperatingSegmentsMember
ava:AlaskaElectricLightPowerMember
ava:UtilityRevenueMember
2019-12-31
0000104918
us-gaap:OperatingSegmentsMember
ava:UtilityRevenueMember
2019-12-31
0000104918
us-gaap:CorporateNonSegmentMember
ava:NonUtilityRevenueMember
2019-12-31
0000104918
us-gaap:IntersegmentEliminationMember
2019-12-31
0000104918
ava:HydroOneMember
2019-01-24
2019-01-24
0000104918
2019-01-01
2019-12-31
0000104918
us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMember
2019-04-18
0000104918
ava:METALfxMember
2019-04-18
0000104918
us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMember
2019-01-01
2019-09-30
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Form 10-Q
(Mark One)
☒ |
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |
|
|
|
FOR THE QUARTERLY PERIOD ENDED September 30, 2020 OR |
☐ |
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |
|
|
|
FOR THE TRANSITION PERIOD FROM TO |
Commission file number 1-3701
AVISTA CORPORATION
(Exact name of Registrant as specified in its charter)
Washington |
|
91-0462470 |
(State or other jurisdiction of
incorporation or organization) |
|
(I.R.S. Employer Identification No.) |
1411 East Mission Avenue, Spokane, Washington 99202-2600
(Address of principal executive offices, including zip code)
Registrant’s telephone number, including area code: 509-489-0500
None
(Former name, former address and former fiscal year, if changed since last report)
Securities registered pursuant to Section 12(b) of the Act:
Title of Each Class |
|
Trading Symbol(s) |
|
Name of Each Exchange on Which Registered |
Common Stock |
|
AVA |
|
New York Stock Exchange |
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days: Yes ☒ No ☐
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes ☒ No ☐
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and "emerging growth company" in Rule 12b-2 of the Exchange Act.
Large accelerated filer |
☒ |
Accelerated filer |
☐ |
Non-accelerated filer |
☐ |
Smaller reporting company |
☐ |
Emerging growth company |
☐ |
|
|
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act ☐
Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act): Yes ☐ No ☒
As of October 30, 2020, 68,735,948 shares of Registrant’s Common Stock, no par value (the only class of common stock), were outstanding.
Table of Contents
AVISTA CORPORATION
AVISTA CORPORATION
INDEX
i
Table of Contents
ii
Table of Contents
AVISTA CORPORATION
ACRONYMS AND TERMS
(The following acronyms and terms are found in multiple locations within the document)
Acronym/Term |
Meaning |
aMW |
- |
Average Megawatt - a measure of the average rate at which a particular generating source produces energy over a period of time |
AEL&P |
- |
Alaska Electric Light and Power Company, the primary operating subsidiary of AERC, which provides electric services in Juneau, Alaska |
AERC |
- |
Alaska Energy and Resources Company, the Company's wholly-owned subsidiary based in Juneau, Alaska |
AFUDC |
- |
Allowance for Funds Used During Construction; represents the cost of both the debt and equity funds used to finance utility plant additions during the construction period |
ASC |
- |
Accounting Standards Codification |
ASU |
- |
Accounting Standards Update |
Avista Capital |
- |
Parent company to the Company’s non-utility businesses, with the exception of AJT Mining Properties, Inc., which is a subsidiary of AERC. |
Avista Corp. |
- |
Avista Corporation, the Company |
Avista Utilities |
- |
Operating division of Avista Corp. (not a subsidiary) comprising the regulated utility operations in the Pacific Northwest |
Capacity |
- |
The rate at which a particular generating source is capable of producing energy, measured in KW or MW |
Cabinet Gorge |
- |
The Cabinet Gorge Hydroelectric Generating Project, located on the Clark Fork River in Idaho |
Colstrip |
- |
The coal-fired Colstrip Generating Plant in southeastern Montana |
Cooling degree days |
- |
The measure of the warmness of weather experienced, based on the extent to which the average of high and low temperatures for a day exceeds 65 degrees Fahrenheit (annual degree days above historic indicate warmer than average temperatures) |
COVID-19 |
- |
Coronavirus disease 2019, a respiratory illness that was declared a pandemic in March 2020 |
Deadband or ERM deadband |
- |
The first $4.0 million in annual power supply costs above or below the amount included in base retail rates in Washington under the ERM in the state of Washington |
EIM |
- |
Energy Imbalance Market |
Energy |
- |
The amount of electricity produced or consumed over a period of time, measured in KWh or MWh. Also, refers to natural gas consumed and is measured in dekatherms |
EPA |
- |
Environmental Protection Agency |
ERM |
- |
The Energy Recovery Mechanism, a mechanism for accounting and rate recovery of certain power supply costs accepted by the utility commission in the state of Washington |
FASB |
- |
Financial Accounting Standards Board |
FCA |
- |
Fixed Cost Adjustment, the electric and natural gas decoupling mechanism in Idaho |
FERC |
- |
Federal Energy Regulatory Commission |
GAAP |
- |
Generally Accepted Accounting Principles |
Heating degree days |
- |
The measure of the coldness of weather experienced, based on the extent to which the average of high and low temperatures for a day falls below 65 degrees Fahrenheit (annual degree days below historic indicate warmer than average temperatures). |
Hydro One |
- |
Hydro One Limited, based in Toronto, Ontario, Canada |
IPUC |
- |
Idaho Public Utilities Commission |
Juneau |
- |
The City and Borough of Juneau, Alaska |
KW, KWh |
- |
Kilowatt (1000 watts): a measure of generating power or capability. Kilowatt-hour (1000 watt hours): a measure of energy produced over a period of time |
iii
Table of Contents
AVISTA CORPORATION
MPSC |
- |
Public Service Commission of the State of Montana |
MW, MWh |
- |
Megawatt: 1000 KW. Megawatt-hour: 1000 KWh |
Noxon Rapids |
- |
The Noxon Rapids Hydroelectric Generating Project, located on the Clark Fork River in Montana |
OPUC |
- |
The Public Utility Commission of Oregon |
PCA |
- |
The Power Cost Adjustment mechanism, a procedure for accounting and rate recovery of certain power supply costs accepted by the utility commission in the state of Idaho |
PGA |
- |
Purchased Gas Adjustment |
PPA |
- |
Power Purchase Agreement |
RCA |
- |
The Regulatory Commission of Alaska |
REC |
- |
Renewable energy credit |
ROE |
- |
Return on equity |
ROR |
- |
Rate of return on rate base |
ROU |
- |
Right-of-use lease asset |
SEC |
- |
U.S. Securities and Exchange Commission |
TCJA |
- |
The "Tax Cuts and Jobs Act," signed into law on December 22, 2017 |
Therm |
- |
Unit of measurement for natural gas; a therm is equal to approximately one hundred cubic feet (volume) or 100,000 BTUs (energy) |
Watt |
- |
Unit of measurement of electric power or capability; a watt is equal to the rate of work represented by a current of one ampere under a pressure of one volt |
WUTC |
- |
Washington Utilities and Transportation Commission |
iv
Table of Contents
AVISTA CORPORATION
Forward-Looking Statements
From time to time, we make forward-looking statements such as statements regarding projected or future:
|
• |
strategic goals and objectives; |
|
• |
business environment; and |
These statements are based upon underlying assumptions (many of which are based, in turn, upon further assumptions). Such statements are made both in our reports filed under the Securities Exchange Act of 1934, as amended (including this Quarterly Report on Form 10-Q), and elsewhere. Forward-looking statements are all statements except those of historical fact including, without limitation, those that are identified by the use of words that include “will,” “may,” “could,” “should,” “intends,” “plans,” “seeks,” “anticipates,” “estimates,” “expects,” “forecasts,” “projects,” “predicts,” and similar expressions.
Forward-looking statements (including those made in this Quarterly Report on Form 10-Q) are subject to a variety of risks, uncertainties and other factors. Most of these factors are beyond our control and may have a significant effect on our operations, results of operations, financial condition or cash flows, which could cause actual results to differ materially from those anticipated in our statements. Such risks, uncertainties and other factors include, among others:
Utility Regulatory Risk
• |
state and federal regulatory decisions or related judicial decisions that affect our ability to recover costs and earn a reasonable return including, but not limited to, disallowance or delay in the recovery of capital investments, operating costs, commodity costs, interest rate swap derivatives, the ordering of refunds to customers and discretion over allowed return on investment; |
• |
the loss of regulatory accounting treatment, which could require the write-off of regulatory assets and the loss of regulatory deferral and recovery mechanisms; |
Operational Risk
• |
pandemics (including the current COVID-19 pandemic), which could disrupt our business, as well as the global, national and local economy, resulting in a decline in customer demand, deterioration in the creditworthiness of our customers, increases in operating and capital costs, workforce shortages, delays in capital projects, disruption in supply chains, and disruption, weakness and volatility in capital markets. In addition, any of these factors could negatively impact our liquidity and limit our access to capital, among other implications; |
• |
wildfires ignited, or allegedly ignited, by Avista Corp. equipment or facilities could cause significant loss of life and property, thereby causing serious operational and financial harm to Avista Corp. and our customers; |
• |
severe weather or natural disasters, including, but not limited to, avalanches, wind storms, wildfires, earthquakes, snow and ice storms, that can disrupt energy generation, transmission and distribution, as well as the availability and costs of fuel, materials, equipment, supplies and support services; |
• |
explosions, fires, accidents, mechanical breakdowns or other incidents that could impair assets and may disrupt operations of any of our generation facilities, transmission, and electric and natural gas distribution systems or other operations and may require us to purchase replacement power or incur costs to repair our facilities; |
• |
explosions, fires, accidents or other incidents arising from or allegedly arising from our operations that could cause injuries to the public or property damage; |
• |
blackouts or disruptions of interconnected transmission systems (the regional power grid); |
1
Table of Contents
AVISTA CORPORATION
• |
terrorist attacks, cyberattacks or other malicious acts that could disrupt or cause damage to our utility assets or to the national or regional economy in general, including any effects of terrorism, cyberattacks, ransomware, or vandalism that damage or disrupt information technology systems; |
• |
work-force issues, including changes in collective bargaining unit agreements, strikes, work stoppages, the loss of key executives, availability of workers in a variety of skill areas, and our ability to recruit and retain employees; |
• |
increasing costs of insurance, more restrictive coverage terms and our ability to obtain insurance; |
• |
delays or changes in construction costs, and/or our ability to obtain required permits and materials for present or prospective facilities; |
• |
increasing health care costs and cost of health insurance provided to our employees and retirees; |
• |
third party construction of buildings, billboard signs, towers or other structures within our rights of way, or placement of fuel containers within close proximity to our transformers or other equipment, including overbuild atop natural gas distribution lines; |
• |
the loss of key suppliers for materials or services or other disruptions to the supply chain; |
• |
adverse impacts to our Alaska electric utility that could result from an extended outage of its hydroelectric generating resources or their inability to deliver energy, due to their lack of interconnectivity to any other electrical grids and the availability or cost of replacement power (diesel); |
• |
changing river regulation or operations at hydroelectric facilities not owned by us, which could impact our hydroelectric facilities downstream; |
• |
change in the use, availability or abundancy of water resources and/or rights needed for operation of our hydroelectric facilities; |
Cyber and Technology Risk
• |
cyberattacks on the operating systems that are used in the operation of our electric generation, transmission and distribution facilities and our natural gas distribution facilities, and cyberattacks on such systems of other energy companies with which we are interconnected, which could damage or destroy facilities or systems or disrupt operations for extended periods of time and result in the incurrence of liabilities and costs; |
• |
cyberattacks on the administrative systems that are used in the administration of our business, including customer billing and customer service, accounting, communications, compliance and other administrative functions, and cyberattacks on such systems of our vendors and other companies with which we do business, which could result in the disruption of business operations, the release of private information and the incurrence of liabilities and costs; |
• |
changes in costs that impede our ability to effectively implement new information technology systems or to operate and maintain current production technology; |
• |
changes in technologies, possibly making some of the current technology we utilize obsolete or introducing new cyber security risks; |
• |
insufficient technology skills, which could lead to the inability to develop, modify or maintain our information systems; |
Strategic Risk
• |
growth or decline of our customer base due to new uses for our services or decline in existing services, including, but not limited to, the effect of the trend toward distributed generation at customer sites; |
• |
the potential effects of negative publicity regarding our business practices, whether true or not, which could hurt our reputation and result in litigation or a decline in our common stock price; |
• |
changes in our strategic business plans, which could be affected by any or all of the foregoing, including the entry into new businesses and/or the exit from existing businesses and the extent of our business development efforts where potential future business is uncertain; |
2
Table of Contents
AVISTA CORPORATION
• |
wholesale and retail competition including alternative energy sources, growth in customer-owned power resource technologies that displace utility-supplied energy or that may be sold back to the utility, and alternative energy suppliers and delivery arrangements; |
• |
entering into or growth of non-regulated activities may increase earnings volatility; |
• |
the risk of municipalization or other forms of service territory reduction; |
External Mandates Risk
• |
changes in environmental laws, regulations, decisions and policies, including present and potential environmental remediation costs and our compliance with these matters; |
• |
the potential effects of initiatives, legislation or administrative rulemaking at the federal, state or local levels, including possible effects on our generating resources, prohibitions or restrictions on new or existing services, or restrictions on greenhouse gas emissions to mitigate concerns over global climate changes; |
• |
political pressures or regulatory practices that could constrain or place additional cost burdens on our distribution systems through accelerated adoption of distributed generation or electric-powered transportation or on our energy supply sources, such as campaigns to halt fossil fuel fired power generation and opposition to other thermal generation, wind turbines or hydroelectric facilities; |
• |
failure to identify changes in legislation, taxation and regulatory issues that could be detrimental or beneficial to our overall business; |
• |
policy and/or legislative changes in various regulated areas, including, but not limited to, environmental regulation, healthcare regulations and import/export regulations; |
Financial Risk
• |
weather conditions, which affect both energy demand and electric generating capability, including the impact of precipitation and temperature on hydroelectric resources, the impact of wind patterns on wind-generated power, weather-sensitive customer demand, and similar impacts on supply and demand in the wholesale energy markets; |
• |
our ability to obtain financing through the issuance of debt and/or equity securities, which could be affected by various factors including our credit ratings, interest rates, other capital market conditions and global economic conditions; |
• |
changes in interest rates that affect borrowing costs, our ability to effectively hedge interest rates for anticipated debt issuances, variable interest rate borrowing and the extent to which we recover interest costs through retail rates collected from customers; |
• |
changes in actuarial assumptions, interest rates and the actual return on plan assets for our pension and other postretirement benefit plans, which could affect future funding obligations, pension and other postretirement benefit expense and the related liabilities; |
• |
the outcome of legal proceedings and other contingencies; |
• |
economic conditions in our service areas, including the economy's effects on customer demand for utility services; |
• |
economic conditions nationally may affect the valuation of our unregulated portfolio companies; |
• |
declining energy demand related to customer energy efficiency, conservation measures and/or increased distributed generation; |
• |
changes in the long-term climate and weather could materially affect, among other things, customer demand, the volume and timing of streamflows required for hydroelectric generation, costs of generation, transmission and distribution. Increased or new risks may arise from severe weather or natural disasters, including wildfires; |
• |
industry and geographic concentrations which could increase our exposure to credit risks due to counterparties, suppliers and customers being similarly affected by changing conditions; |
• |
deterioration in the creditworthiness of our customers; |
3
Table of Contents
AVISTA CORPORATION
Energy Commodity Risk
• |
volatility and illiquidity in wholesale energy markets, including exchanges, the availability of willing buyers and sellers, changes in wholesale energy prices that could affect operating income, cash requirements to purchase electricity and natural gas, value received for wholesale sales, collateral required of us by individual counterparties and/or exchanges in wholesale energy transactions and credit risk to us from such transactions, and the market value of derivative assets and liabilities; |
• |
default or nonperformance on the part of any parties from whom we purchase and/or sell capacity or energy; |
• |
potential environmental regulations or lawsuits affecting our ability to utilize or resulting in the obsolescence of our power supply resources; |
• |
explosions, fires, accidents, pipeline ruptures or other incidents that could limit energy supply to our facilities or our surrounding territory, which could result in a shortage of commodities in the market that could increase the cost of replacement commodities from other sources; |
Compliance Risk
• |
changes in laws, regulations, decisions and policies at the federal, state or local levels, which could materially impact both our electric and gas operations and costs of operations; and |
• |
the ability to comply with the terms of the licenses and permits for our hydroelectric or thermal generating facilities at cost-effective levels. |
Our expectations, beliefs and projections are expressed in good faith. We believe they are reasonable based on, without limitation, an examination of historical operating trends, our records and other information available from third parties. There can be no assurance that our expectations, beliefs or projections will be achieved or accomplished. Furthermore, any forward-looking statement speaks only as of the date on which such statement is made. We undertake no obligation to update any forward-looking statement or statements to reflect events or circumstances that occur after the date on which such statement is made or to reflect the occurrence of unanticipated events. New risks, uncertainties and other factors emerge from time to time, and it is not possible for us to predict all such factors, nor can we assess the effect of each such factor on our business or the extent that any such factor or combination of factors may cause actual results to differ materially from those contained in any forward-looking statement.
Available Information
We file annual, quarterly and current reports and proxy statements with the SEC. The SEC maintains a website that contains these documents at www.sec.gov. We make annual, quarterly and current reports and proxy statements available on our website, www.avistacorp.com, as soon as practicable after electronically filing these documents with the SEC. Except for SEC filings or portions thereof that are specifically referred to in this report, information contained on these websites is not part of this report.
4
Table of Contents
PART I. Financial Information
Item 1. Condensed Consolidated Financial Statements
CONDENSED CONSOLIDATED STATEMENTS OF INCOME
Avista Corporation
For the Three and Nine Months Ended September 30
Dollars in thousands, except per share amounts
(Unaudited)
|
|
Three Months Ended September 30, |
|
|
Nine Months Ended September 30, |
|
|
|
2020 |
|
|
2019 |
|
|
2020 |
|
|
2019 |
|
Operating Revenues: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Utility revenues: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Utility revenues, exclusive of alternative revenue
programs |
|
$ |
276,351 |
|
|
$ |
276,683 |
|
|
$ |
944,146 |
|
|
$ |
958,750 |
|
Alternative revenue programs |
|
|
(3,972 |
) |
|
|
6,038 |
|
|
|
(4,023 |
) |
|
|
11,105 |
|
Total utility revenues |
|
|
272,379 |
|
|
|
282,721 |
|
|
|
940,123 |
|
|
|
969,855 |
|
Non-utility revenues |
|
|
267 |
|
|
|
1,049 |
|
|
|
1,345 |
|
|
|
11,208 |
|
Total operating revenues |
|
|
272,646 |
|
|
|
283,770 |
|
|
|
941,468 |
|
|
|
981,063 |
|
Operating Expenses: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Utility operating expenses: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Resource costs |
|
|
78,785 |
|
|
|
98,324 |
|
|
|
276,297 |
|
|
|
324,110 |
|
Other operating expenses |
|
|
85,551 |
|
|
|
80,112 |
|
|
|
266,251 |
|
|
|
251,810 |
|
Merger transaction costs |
|
|
— |
|
|
|
— |
|
|
|
— |
|
|
|
19,675 |
|
Depreciation and amortization |
|
|
53,953 |
|
|
|
50,052 |
|
|
|
169,282 |
|
|
|
154,445 |
|
Taxes other than income taxes |
|
|
24,016 |
|
|
|
23,455 |
|
|
|
79,736 |
|
|
|
78,306 |
|
Non-utility operating expenses: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Other operating expenses |
|
|
1,697 |
|
|
|
1,450 |
|
|
|
3,716 |
|
|
|
15,137 |
|
Depreciation and amortization |
|
|
146 |
|
|
|
134 |
|
|
|
569 |
|
|
|
498 |
|
Total operating expenses |
|
|
244,148 |
|
|
|
253,527 |
|
|
|
795,851 |
|
|
|
843,981 |
|
Income from operations |
|
|
28,498 |
|
|
|
30,243 |
|
|
|
145,617 |
|
|
|
137,082 |
|
Interest expense |
|
|
25,812 |
|
|
|
25,859 |
|
|
|
77,784 |
|
|
|
77,021 |
|
Interest expense to affiliated trusts |
|
|
128 |
|
|
|
334 |
|
|
|
606 |
|
|
|
1,042 |
|
Capitalized interest |
|
|
(1,009 |
) |
|
|
(1,089 |
) |
|
|
(2,979 |
) |
|
|
(3,118 |
) |
Merger termination fee |
|
|
— |
|
|
|
— |
|
|
|
— |
|
|
|
(103,000 |
) |
Other expense (income)-net |
|
|
(2,168 |
) |
|
|
180 |
|
|
|
(2,019 |
) |
|
|
(8,995 |
) |
Income before income taxes |
|
|
5,735 |
|
|
|
4,959 |
|
|
|
72,225 |
|
|
|
174,132 |
|
Income tax expense (benefit) |
|
|
859 |
|
|
|
(131 |
) |
|
|
1,472 |
|
|
|
28,145 |
|
Net income |
|
|
4,876 |
|
|
|
5,090 |
|
|
|
70,753 |
|
|
|
145,987 |
|
Net loss attributable to noncontrolling interests |
|
|
— |
|
|
|
— |
|
|
|
— |
|
|
|
216 |
|
Net income attributable to Avista Corp. shareholders |
|
$ |
4,876 |
|
|
$ |
5,090 |
|
|
$ |
70,753 |
|
|
$ |
146,203 |
|
Weighted-average common shares outstanding
(thousands), basic |
|
|
68,194 |
|
|
|
66,265 |
|
|
|
67,638 |
|
|
|
65,964 |
|
Weighted-average common shares outstanding
(thousands), diluted |
|
|
68,337 |
|
|
|
66,351 |
|
|
|
67,769 |
|
|
|
66,050 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Earnings per common share attributable to Avista Corp.
shareholders: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Basic |
|
$ |
0.07 |
|
|
$ |
0.08 |
|
|
$ |
1.05 |
|
|
$ |
2.22 |
|
Diluted |
|
$ |
0.07 |
|
|
$ |
0.08 |
|
|
$ |
1.04 |
|
|
$ |
2.21 |
|
The Accompanying Notes are an Integral Part of These Statements.
5
Table of Contents
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Avista Corporation
For the Three and Nine Months Ended September 30
Dollars in thousands
(Unaudited)
|
|
Three Months Ended September 30, |
|
|
Nine Months Ended September 30, |
|
|
|
2020 |
|
|
2019 |
|
|
2020 |
|
|
2019 |
|
Net income |
|
$ |
4,876 |
|
|
$ |
5,090 |
|
|
$ |
70,753 |
|
|
$ |
145,987 |
|
Other Comprehensive Income: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Change in unfunded benefit obligation for pension and other postretirement benefit plans - net of taxes of $58, $43, $171 and $128 respectively |
|
|
220 |
|
|
|
162 |
|
|
|
645 |
|
|
|
483 |
|
Total other comprehensive income |
|
|
220 |
|
|
|
162 |
|
|
|
645 |
|
|
|
483 |
|
Comprehensive income |
|
|
5,096 |
|
|
|
5,252 |
|
|
|
71,398 |
|
|
|
146,470 |
|
Comprehensive loss attributable to noncontrolling
interests |
|
|
— |
|
|
|
— |
|
|
|
— |
|
|
|
216 |
|
Comprehensive income attributable to Avista Corporation
shareholders |
|
$ |
5,096 |
|
|
$ |
5,252 |
|
|
$ |
71,398 |
|
|
$ |
146,686 |
|
The Accompanying Notes are an Integral Part of These Statements.
6
Table of Contents
CONDENSED CONSOLIDATED BALANCE SHEETS
Avista Corporation
Dollars in thousands
(Unaudited)
|
|
September 30, |
|
|
December 31, |
|
|
|
2020 |
|
|
2019 |
|
Assets: |
|
|
|
|
|
|
|
|
Current Assets: |
|
|
|
|
|
|
|
|
Cash and cash equivalents |
|
$ |
84,747 |
|
|
$ |
9,896 |
|
Accounts and notes receivable-less allowances of $11,322 and $2,419, respectively |
|
|
108,118 |
|
|
|
166,657 |
|
Materials and supplies, fuel stock and stored natural gas |
|
|
69,026 |
|
|
|
66,583 |
|
Regulatory assets |
|
|
11,194 |
|
|
|
21,851 |
|
Other current assets |
|
|
26,577 |
|
|
|
40,142 |
|
Total current assets |
|
|
299,662 |
|
|
|
305,129 |
|
Net utility property |
|
|
4,930,359 |
|
|
|
4,797,007 |
|
Goodwill |
|
|
52,426 |
|
|
|
52,426 |
|
Non-current regulatory assets |
|
|
737,541 |
|
|
|
670,802 |
|
Other property and investments-net and other non-current assets |
|
|
263,143 |
|
|
|
257,092 |
|
Total assets |
|
$ |
6,283,131 |
|
|
$ |
6,082,456 |
|
Liabilities and Equity: |
|
|
|
|
|
|
|
|
Current Liabilities: |
|
|
|
|
|
|
|
|
Accounts payable |
|
$ |
83,697 |
|
|
$ |
110,219 |
|
Current portion of long-term debt |
|
|
52,000 |
|
|
|
52,000 |
|
Short-term borrowings |
|
|
150,000 |
|
|
|
185,800 |
|
Regulatory liabilities |
|
|
48,902 |
|
|
|
51,715 |
|
Other current liabilities |
|
|
140,240 |
|
|
|
130,979 |
|
Total current liabilities |
|
|
474,839 |
|
|
|
530,713 |
|
Long-term debt |
|
|
2,009,300 |
|
|
|
1,843,768 |
|
Long-term debt to affiliated trusts |
|
|
51,547 |
|
|
|
51,547 |
|
Pensions and other postretirement benefits |
|
|
199,912 |
|
|
|
212,006 |
|
Deferred income taxes |
|
|
550,571 |
|
|
|
528,513 |
|
Non-current regulatory liabilities |
|
|
773,641 |
|
|
|
775,436 |
|
Other non-current liabilities and deferred credits |
|
|
240,470 |
|
|
|
201,189 |
|
Total liabilities |
|
|
4,300,280 |
|
|
|
4,143,172 |
|
Commitments and Contingencies (See Notes to Condensed Consolidated
Financial Statements) |
|
|
|
|
|
|
|
|