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v2.4.1.9

Income taxes Components of Income Taxes Attributable to Net Income for Common Stock (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Federal |  |  |
Current | $ 33,762 us-gaap_CurrentFederalTaxExpenseBenefit | $ (1,520)us-gaap_CurrentFederalTaxExpenseBenefit | $ (15,411)us-gaap_CurrentFederalTaxExpenseBenefit
Deferred | 46,427 us-gaap_DeferredFederalIncomeTaxExpenseBenefit | 73,680 us-gaap_DeferredFederalIncomeTaxExpenseBenefit | 82,138 us-gaap_DeferredFederalIncomeTaxExpenseBenefit
Deferred tax credits, net | 0 he_DeferredFederalTaxCreditsNet | 224 he_DeferredFederalTaxCreditsNet | 187 he_DeferredFederalTaxCreditsNet
Federal taxes | 80,189 us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations | 72,384 us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations | 66,914 us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations
State |  |  |
Current | (7,339)us-gaap_CurrentStateAndLocalTaxExpenseBenefit | (1,555)us-gaap_CurrentStateAndLocalTaxExpenseBenefit | (4,654)us-gaap_CurrentStateAndLocalTaxExpenseBenefit
Deferred | 12,756 us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit | 6,719 us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit | 8,710 us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit
Deferred tax credits, net | 6,106 he_DeferredStateAndLocalTaxCreditsNet | 6,793 he_DeferredStateAndLocalTaxCreditsNet | 5,889 he_DeferredStateAndLocalTaxCreditsNet
State taxes | 11,523 us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations | 11,957 us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations | 9,945 us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations
Federal and state taxes | 91,712 us-gaap_IncomeTaxExpenseBenefit | 84,341 us-gaap_IncomeTaxExpenseBenefit | 76,859 us-gaap_IncomeTaxExpenseBenefit
Hawaiian Electric Company, Inc. and Subsidiaries |  |  |
Federal |  |  |
Current | 1,108 us-gaap_CurrentFederalTaxExpenseBenefit / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember | 1,313 us-gaap_CurrentFederalTaxExpenseBenefit / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember | (26,965)us-gaap_CurrentFederalTaxExpenseBenefit / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember
Deferred | 68,775 us-gaap_DeferredFederalIncomeTaxExpenseBenefit / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember | 58,024 us-gaap_DeferredFederalIncomeTaxExpenseBenefit / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember | 79,437 us-gaap_DeferredFederalIncomeTaxExpenseBenefit / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember
Deferred tax credits, net | 0 he_DeferredFederalTaxCreditsNet / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember | 224 he_DeferredFederalTaxCreditsNet / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember | 186 he_DeferredFederalTaxCreditsNet / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember
Federal taxes | 69,883 us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember | 59,561 us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember | 52,658 us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember
State |  |  |
Current | (9,436)us-gaap_CurrentStateAndLocalTaxExpenseBenefit / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember | (3,720)us-gaap_CurrentStateAndLocalTaxExpenseBenefit / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember | (4,940)us-gaap_CurrentStateAndLocalTaxExpenseBenefit / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember
Deferred | 14,172 us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember | 6,483 us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember | 7,441 us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember
Deferred tax credits, net | 6,106 he_DeferredStateAndLocalTaxCreditsNet / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember | 6,793 he_DeferredStateAndLocalTaxCreditsNet / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember | 5,889 he_DeferredStateAndLocalTaxCreditsNet / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember
State taxes | 10,842 us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember | 9,556 us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember | 8,390 us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember
Federal and state taxes | $ 80,725 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember | $ 69,117 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember | $ 61,048 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = he_HawaiianElectricCompanyAndSubsidiariesMember

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