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Consolidated Statements of Comprehensive Income (Parenthetical) - HECO (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Less: amortization of net loss, prior service gain and transition obligation included in net periodic benefit cost, tax benefits | $ (1,900) | $ (3,697) | $ (5,438) | $ (11,173)
Less: reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, taxes | 1,619 | 3,284 | 4,858 | 9,852
Hawaiian Electric Company, Inc. and Subsidiaries |  |  |  |
Less: amortization of net loss, prior service gain and transition obligation included in net periodic benefit cost, tax benefits | (1,626) | (3,295) | (4,878) | (9,885)
Less: reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, taxes | $ 1,619 | $ 3,284 | $ 4,858 | $ 9,852

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- Definition The amount of income taxes on the reclassification adjustments on pension and post retirement benefits for the accounting impact of the decisions issued by the Public Utilities Commission. + References No definition available. + Details
Name: | he_OtherComprehensiveIncomeReclassificationAdjustmentForImpactOfDecisionAndOrdersOfThePUCIncludedInRegulatoryAssetsTax
Namespace Prefix: | he_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Tax effect on adjustment out of other comprehensive income for actuarial gains or losses, prior service gains or losses, and net transition asset or obligation recognized as a component of net periodic benefit cost during the period. + References No definition available. + Details
Name: | he_OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossPriorServiceGainLossAndReclassificationOfDefinedBenefitPlanNetTransitionAssetObligationRecognizedInNetPeriodicBenefitCostTax
Namespace Prefix: | he_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration