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SCHEDULE I - CONDENSED FINANCIAL INFORMATION OF REGISTRANT- Balance Sheets (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
ASSETS
Cash and cash equivalents	175,542,000us-gaap_CashCashEquivalentsAndFederalFundsSold	$ 220,036,000us-gaap_CashCashEquivalentsAndFederalFundsSold	$ 219,662,000us-gaap_CashCashEquivalentsAndFederalFundsSold	$ 270,265,000us-gaap_CashCashEquivalentsAndFederalFundsSold
Accounts receivable	313,696,000us-gaap_AccountsReceivableNet	346,785,000us-gaap_AccountsReceivableNet
Property, plant and equipment, net	4,148,774,000us-gaap_PropertyPlantAndEquipmentNet	3,865,514,000us-gaap_PropertyPlantAndEquipmentNet
Other assets	541,542,000us-gaap_OtherAssets	512,627,000us-gaap_OtherAssets
Total assets	11,184,161,000us-gaap_Assets	10,340,044,000us-gaap_Assets
Liabilities
Accounts payable	186,425,000us-gaap_AccountsPayableCurrentAndNoncurrent	212,331,000us-gaap_AccountsPayableCurrentAndNoncurrent
Long-term debt	1,506,546,000us-gaap_LongTermDebt	1,492,945,000us-gaap_LongTermDebt
Retirement benefits liability	632,845,000us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent	288,539,000us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent
Other	531,230,000us-gaap_OtherLiabilities	524,224,000us-gaap_OtherLiabilities
Total liabilities	9,358,440,000us-gaap_Liabilities	8,578,681,000us-gaap_Liabilities
Shareholders' equity
Preferred stock, no par value, authorized 10,000,000 shares; issued: none	0us-gaap_PreferredStockValue	0us-gaap_PreferredStockValue
Common stock, no par value, authorized 200,000,000 shares; issued and outstanding: 102,565,266 shares and 101,259,800 shares at December 31, 2014 and 2013, respectively	1,521,297,000us-gaap_CommonStocksIncludingAdditionalPaidInCapitalNetOfDiscount	1,488,126,000us-gaap_CommonStocksIncludingAdditionalPaidInCapitalNetOfDiscount
Retained earnings	297,509,000us-gaap_RetainedEarningsAccumulatedDeficit	255,694,000us-gaap_RetainedEarningsAccumulatedDeficit
Accumulated other comprehensive loss	(27,378,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax	(16,750,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax	(26,423,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax	(19,137,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
Total shareholders' equity	1,791,428,000us-gaap_StockholdersEquity	1,727,070,000us-gaap_StockholdersEquity	1,593,865,000us-gaap_StockholdersEquity	1,528,706,000us-gaap_StockholdersEquity
Total liabilities and shareholders' equity	11,184,161,000us-gaap_LiabilitiesAndStockholdersEquity	10,340,044,000us-gaap_LiabilitiesAndStockholdersEquity
Aggregate principal payments
2015	0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
2016	200,000,000us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
2017	0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
2018	50,000,000us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
2019	0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
Preferred stock, authorized shares	10,000,000us-gaap_PreferredStockSharesAuthorized	10,000,000us-gaap_PreferredStockSharesAuthorized
Common stock, authorized shares	200,000,000us-gaap_CommonStockSharesAuthorized	200,000,000us-gaap_CommonStockSharesAuthorized
Common stock, issued shares	102,565,266us-gaap_CommonStockSharesIssued	101,259,800us-gaap_CommonStockSharesIssued
Common stock, outstanding shares	102,565,266us-gaap_CommonStockSharesOutstanding	101,259,800us-gaap_CommonStockSharesOutstanding
Deferred income taxes	631,734,000us-gaap_DeferredTaxLiabilitiesNoncurrent	529,260,000us-gaap_DeferredTaxLiabilitiesNoncurrent
Self-insured United States longshore & Harbor bond
Aggregate principal payments
Guarantee obligation maximum exposure	200,000us-gaap_GuaranteeObligationsMaximumExposure / us-gaap_UnderlyingAssetClassAxis = he_SelfInsuredUnitedStatesLongshoreAndHorborBondMember
Self-insured automobile bond
Aggregate principal payments
Guarantee obligation maximum exposure	600,000us-gaap_GuaranteeObligationsMaximumExposure / us-gaap_UnderlyingAssetClassAxis = he_SelfInsuredAutomobileBondMember
HEI term loan LIBOR plus .90% due 2016
Liabilities
Long-term debt	125,000,000us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = he_TermLoanLIBORPlus.90PercentDue2016Member	0us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = he_TermLoanLIBORPlus.90PercentDue2016Member
HEI medium-term note 6.51%, due 2014
Liabilities
Long-term debt	0us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = he_MediumTermNotes6.51PercentDue2014Member	100,000,000us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = he_MediumTermNotes6.51PercentDue2014Member
Shareholders' equity
Interest rate of medium-term notes (as a percent)	6.51%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = he_MediumTermNotes6.51PercentDue2014Member	6.51%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = he_MediumTermNotes6.51PercentDue2014Member
HEI senior note 4.41%, due 2016
Liabilities
Long-term debt	75,000,000us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = he_SeniorNotes4.41PercentDue2016Member	75,000,000us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = he_SeniorNotes4.41PercentDue2016Member
Shareholders' equity
Interest rate of medium-term notes (as a percent)	4.41%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = he_SeniorNotes4.41PercentDue2016Member	4.41%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = he_SeniorNotes4.41PercentDue2016Member
HEI senior note 5.67%, due 2021
Liabilities
Long-term debt	50,000,000us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = he_SeniorNotes5.67PercentDue2021Member	50,000,000us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = he_SeniorNotes5.67PercentDue2021Member
Shareholders' equity
Interest rate of medium-term notes (as a percent)	5.67%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = he_SeniorNotes5.67PercentDue2021Member	5.67%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = he_SeniorNotes5.67PercentDue2021Member
HEI senior note 3.99%, due 2023
Liabilities
Long-term debt	50,000,000us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = he_Series2013ASeniorNotes3.99PercentDue2023Member	50,000,000us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = he_Series2013ASeniorNotes3.99PercentDue2023Member
Shareholders' equity
Interest rate of medium-term notes (as a percent)	3.99%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = he_Series2013ASeniorNotes3.99PercentDue2023Member	3.99%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = he_Series2013ASeniorNotes3.99PercentDue2023Member
Hawaiian Electric Industries, Inc.
ASSETS
Cash and cash equivalents	276,000us-gaap_CashCashEquivalentsAndFederalFundsSold / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	571,000us-gaap_CashCashEquivalentsAndFederalFundsSold / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	18,021,000us-gaap_CashCashEquivalentsAndFederalFundsSold / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	1,765,000us-gaap_CashCashEquivalentsAndFederalFundsSold / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Accounts receivable	1,991,000us-gaap_AccountsReceivableNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	1,661,000us-gaap_AccountsReceivableNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Property, plant and equipment, net	4,917,000us-gaap_PropertyPlantAndEquipmentNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	5,419,000us-gaap_PropertyPlantAndEquipmentNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Deferred income tax assets	15,922,000us-gaap_DeferredTaxAssetsNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	10,057,000us-gaap_DeferredTaxAssetsNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Other assets	11,070,000us-gaap_OtherAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	9,550,000us-gaap_OtherAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Investments in subsidiaries, at equity	2,224,452,000he_InvestmentInSubsidiaries / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	2,122,841,000he_InvestmentInSubsidiaries / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Total assets	2,258,628,000us-gaap_Assets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	2,150,099,000us-gaap_Assets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Liabilities
Accounts payable	1,993,000us-gaap_AccountsPayableCurrentAndNoncurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	817,000us-gaap_AccountsPayableCurrentAndNoncurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Interest payable	2,583,000us-gaap_InterestPayableCurrentAndNoncurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	4,630,000us-gaap_InterestPayableCurrentAndNoncurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Notes payable to subsidiaries	7,857,000he_NotesPayableToSubsidiaries / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	7,936,000he_NotesPayableToSubsidiaries / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Commercial paper	118,972,000us-gaap_CommercialPaper / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	105,482,000us-gaap_CommercialPaper / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Long-term debt	300,000,000us-gaap_LongTermDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	275,000,000us-gaap_LongTermDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Retirement benefits liability	32,030,000us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	21,559,000us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Other	3,765,000us-gaap_OtherLiabilities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	7,605,000us-gaap_OtherLiabilities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Total liabilities	467,200,000us-gaap_Liabilities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	423,029,000us-gaap_Liabilities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Shareholders' equity
Preferred stock, no par value, authorized 10,000,000 shares; issued: none	0us-gaap_PreferredStockValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	0us-gaap_PreferredStockValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Common stock, no par value, authorized 200,000,000 shares; issued and outstanding: 102,565,266 shares and 101,259,800 shares at December 31, 2014 and 2013, respectively	1,521,297,000us-gaap_CommonStocksIncludingAdditionalPaidInCapitalNetOfDiscount / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	1,488,126,000us-gaap_CommonStocksIncludingAdditionalPaidInCapitalNetOfDiscount / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Retained earnings	297,509,000us-gaap_RetainedEarningsAccumulatedDeficit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	255,694,000us-gaap_RetainedEarningsAccumulatedDeficit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Accumulated other comprehensive loss	(27,378,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	(16,750,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Total shareholders' equity	1,791,428,000us-gaap_StockholdersEquity / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	1,727,070,000us-gaap_StockholdersEquity / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Total liabilities and shareholders' equity	2,258,628,000us-gaap_LiabilitiesAndStockholdersEquity / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	2,150,099,000us-gaap_LiabilitiesAndStockholdersEquity / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Aggregate principal payments
2015	0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
2016	200,000,000us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
2017	0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
2018	0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
2019	0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Preferred stock, authorized shares	10,000,000us-gaap_PreferredStockSharesAuthorized / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	10,000,000us-gaap_PreferredStockSharesAuthorized / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Common stock, authorized shares	200,000,000us-gaap_CommonStockSharesAuthorized / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	200,000,000us-gaap_CommonStockSharesAuthorized / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Common stock, issued shares	102,565,266us-gaap_CommonStockSharesIssued / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	101,259,800us-gaap_CommonStockSharesIssued / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Common stock, outstanding shares	102,565,266us-gaap_CommonStockSharesOutstanding / dei_LegalEntityAxis = us-gaap_ParentCompanyMember	101,259,800us-gaap_CommonStockSharesOutstanding / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Deferred income taxes		0us-gaap_DeferredTaxLiabilitiesNoncurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Hawaiian Electric Industries, Inc. | HEI term loan LIBOR plus .90% due 2016
Liabilities
Long-term debt	125,000,000us-gaap_LongTermDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = he_TermLoanLIBORPlus.90PercentDue2016Member	0us-gaap_LongTermDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = he_TermLoanLIBORPlus.90PercentDue2016Member
Hawaiian Electric Industries, Inc. | HEI medium-term note 6.51%, due 2014
Liabilities
Long-term debt	0us-gaap_LongTermDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = he_MediumTermNotes6.51PercentDue2014Member	100,000,000us-gaap_LongTermDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = he_MediumTermNotes6.51PercentDue2014Member
Shareholders' equity
Interest rate of medium-term notes (as a percent)	6.51%us-gaap_DebtInstrumentInterestRateStatedPercentage / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = he_MediumTermNotes6.51PercentDue2014Member	6.51%us-gaap_DebtInstrumentInterestRateStatedPercentage / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = he_MediumTermNotes6.51PercentDue2014Member
Hawaiian Electric Industries, Inc. | HEI senior note 4.41%, due 2016
Liabilities
Long-term debt	75,000,000us-gaap_LongTermDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = he_SeniorNotes4.41PercentDue2016Member	75,000,000us-gaap_LongTermDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = he_SeniorNotes4.41PercentDue2016Member
Shareholders' equity
Interest rate of medium-term notes (as a percent)	4.41%us-gaap_DebtInstrumentInterestRateStatedPercentage / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = he_SeniorNotes4.41PercentDue2016Member	4.41%us-gaap_DebtInstrumentInterestRateStatedPercentage / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = he_SeniorNotes4.41PercentDue2016Member
Hawaiian Electric Industries, Inc. | HEI senior note 5.67%, due 2021
Liabilities
Long-term debt	50,000,000us-gaap_LongTermDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = he_SeniorNotes5.67PercentDue2021Member	50,000,000us-gaap_LongTermDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = he_SeniorNotes5.67PercentDue2021Member
Shareholders' equity
Interest rate of medium-term notes (as a percent)	5.67%us-gaap_DebtInstrumentInterestRateStatedPercentage / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = he_SeniorNotes5.67PercentDue2021Member	5.67%us-gaap_DebtInstrumentInterestRateStatedPercentage / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = he_SeniorNotes5.67PercentDue2021Member
Hawaiian Electric Industries, Inc. | HEI senior note 3.99%, due 2023
Liabilities
Long-term debt	50,000,000us-gaap_LongTermDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = he_Series2013ASeniorNotes3.99PercentDue2023Member	50,000,000us-gaap_LongTermDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = he_Series2013ASeniorNotes3.99PercentDue2023Member
Shareholders' equity
Interest rate of medium-term notes (as a percent)	3.99%us-gaap_DebtInstrumentInterestRateStatedPercentage / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = he_Series2013ASeniorNotes3.99PercentDue2023Member	3.99%us-gaap_DebtInstrumentInterestRateStatedPercentage / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = he_Series2013ASeniorNotes3.99PercentDue2023Member
As previously filed | Hawaiian Electric Industries, Inc.
ASSETS
Deferred income tax assets		1,594,000us-gaap_DeferredTaxAssetsNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_StatementScenarioAxis = us-gaap_ScenarioPreviouslyReportedMember
Other assets		23,679,000us-gaap_OtherAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_StatementScenarioAxis = us-gaap_ScenarioPreviouslyReportedMember
Total assets		2,155,765,000us-gaap_Assets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_StatementScenarioAxis = us-gaap_ScenarioPreviouslyReportedMember
Liabilities
Other		1,886,000us-gaap_OtherLiabilities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_StatementScenarioAxis = us-gaap_ScenarioPreviouslyReportedMember
Total liabilities		428,695,000us-gaap_Liabilities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_StatementScenarioAxis = us-gaap_ScenarioPreviouslyReportedMember
Shareholders' equity
Total liabilities and shareholders' equity		2,155,765,000us-gaap_LiabilitiesAndStockholdersEquity / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_StatementScenarioAxis = us-gaap_ScenarioPreviouslyReportedMember
Aggregate principal payments
Deferred income taxes		11,385,000us-gaap_DeferredTaxLiabilitiesNoncurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_StatementScenarioAxis = us-gaap_ScenarioPreviouslyReportedMember
Difference
ASSETS
Other assets		(7,000,000)us-gaap_OtherAssets / us-gaap_StatementScenarioAxis = us-gaap_RestatementAdjustmentMember
Difference | Hawaiian Electric Industries, Inc.
ASSETS
Deferred income tax assets		8,463,000us-gaap_DeferredTaxAssetsNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_StatementScenarioAxis = us-gaap_RestatementAdjustmentMember
Other assets		(14,129,000)us-gaap_OtherAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_StatementScenarioAxis = us-gaap_RestatementAdjustmentMember
Total assets		(5,666,000)us-gaap_Assets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_StatementScenarioAxis = us-gaap_RestatementAdjustmentMember
Liabilities
Other		5,719,000us-gaap_OtherLiabilities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_StatementScenarioAxis = us-gaap_RestatementAdjustmentMember
Total liabilities		(5,666,000)us-gaap_Liabilities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_StatementScenarioAxis = us-gaap_RestatementAdjustmentMember
Shareholders' equity
Total liabilities and shareholders' equity		(5,666,000)us-gaap_LiabilitiesAndStockholdersEquity / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_StatementScenarioAxis = us-gaap_RestatementAdjustmentMember
Aggregate principal payments
Deferred income taxes		$ (11,385,000)us-gaap_DeferredTaxLiabilitiesNoncurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_StatementScenarioAxis = us-gaap_RestatementAdjustmentMember
LIBOR | HEI term loan LIBOR plus .90% due 2016
Aggregate principal payments
Line of credit facility basis point spread (as a percent)	0.90%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LongtermDebtTypeAxis = he_TermLoanLIBORPlus.90PercentDue2016Member / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember

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