$HE
HAWAIIAN ELECTRIC INDUSTRIES INC Stock $he

$he Overview Financials Valuation SEC Filings Company Website

2016 Q1 Form 10-Q Financial Statement

#000035470716000143 Filed on May 04, 2016

Income Statement

Concept	2016 Q1	2015 Q1
Revenue	$551.0M	$637.9M
YoY Change	-13.62%	-18.61%
Cost Of Revenue	$482.1M	$568.4M
YoY Change	-15.18%	-18.16%
Gross Profit	$68.90M	$69.50M
YoY Change	-0.86%	-22.09%
Gross Profit Margin	12.51%	10.9%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$48.59M	$45.87M
YoY Change	5.95%	6.22%
% of Gross Profit	70.53%	65.99%
Operating Expenses	$0.00	$0.00
YoY Change
Operating Profit	$68.85M	$69.51M
YoY Change	-0.94%	-22.09%
Interest Expense	-$17.70M	-$17.20M
YoY Change	2.91%	0.0%
% of Operating Profit	-25.71%	-24.75%
Other Income/Expense, Net
YoY Change
Pretax Income	$51.10M	$52.30M
YoY Change	-2.29%	-27.36%
Income Tax	$18.30M	$19.98M
% Of Pretax Income	35.81%	38.2%
Net Earnings	$32.83M	$32.34M
YoY Change	1.5%	-30.09%
Net Earnings / Revenue	5.96%	5.07%
Basic Earnings Per Share	$0.30	$0.31
Diluted Earnings Per Share	$0.30	$0.31
COMMON SHARES
Basic Shares Outstanding	107.6M shares	103.3M shares
Diluted Shares Outstanding	107.8M shares	103.6M shares

Balance Sheet

Concept	2016 Q1	2015 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments	$335.0M	$292.0M
YoY Change	14.73%	8.55%
Cash & Equivalents	$334.7M	$292.0M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables	$210.0M	$255.0M
Other Receivables	$0.00	$0.00
Total Short-Term Assets	$545.0M	$547.0M
YoY Change	-0.37%	-7.76%
LONG-TERM ASSETS
Property, Plant & Equipment	$4.424B	$4.191B
YoY Change	5.55%	7.23%
Goodwill	$82.19M	$82.19M
YoY Change	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments	$918.0M	$654.0M
YoY Change	40.37%	8.28%
Other Assets
YoY Change
Total Long-Term Assets	$11.33B	$10.73B
YoY Change	5.58%	8.73%
TOTAL ASSETS
Total Short-Term Assets	$545.0M	$547.0M
Total Long-Term Assets	$11.33B	$10.73B
Total Assets	$11.87B	$11.27B
YoY Change	5.3%	7.8%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$119.0M	$168.0M
YoY Change	-29.17%	-20.38%
Accrued Expenses	$28.00M	$25.00M
YoY Change	12.0%	-13.79%
Deferred Revenue
YoY Change
Short-Term Debt	$95.00M	$31.00M
YoY Change	206.45%	-77.21%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$242.0M	$224.0M
YoY Change	8.04%	-40.43%
LONG-TERM LIABILITIES
Long-Term Debt	$1.908B	$1.819B
YoY Change	4.89%	4.66%
Other Long-Term Liabilities	$7.043B	$6.658B
YoY Change	5.78%	10.47%
Total Long-Term Liabilities	$8.951B	$8.477B
YoY Change	5.59%	9.17%
TOTAL LIABILITIES
Total Short-Term Liabilities	$242.0M	$224.0M
Total Long-Term Liabilities	$8.951B	$8.477B
Total Liabilities	$9.894B	$9.341B
YoY Change	5.92%	7.64%
SHAREHOLDERS EQUITY
Retained Earnings	$323.8M	$296.7M
YoY Change	9.12%	9.81%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.942B	$1.898B
YoY Change
Total Liabilities & Shareholders Equity	$11.87B	$11.27B
YoY Change	5.3%	7.8%

Cashflow Statement

Concept	2016 Q1	2015 Q1
OPERATING ACTIVITIES
Net Income	$32.83M	$32.34M
YoY Change	1.5%	-30.09%
Depreciation, Depletion And Amortization	$48.59M	$45.87M
YoY Change	5.95%	6.22%
Cash From Operating Activities	$171.0M	$138.6M
YoY Change	23.38%	217.16%
INVESTING ACTIVITIES
Capital Expenditures	$127.8M	$123.5M
YoY Change	3.47%	87.65%
Acquisitions
YoY Change
Other Investing Activities	-$819.0K	-$3.549M
YoY Change	-76.92%
Cash From Investing Activities	-$215.3M	-$152.0M
YoY Change	41.64%	54.31%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net	$75.00M	$0.00
YoY Change
Cash From Financing Activities	78.50M	130.1M
YoY Change	-39.66%	25.22%
NET CHANGE
Cash From Operating Activities	171.0M	138.6M
Cash From Investing Activities	-215.3M	-152.0M
Cash From Financing Activities	78.50M	130.1M
Net Change In Cash	34.20M	116.7M
YoY Change	-70.69%	137.68%
FREE CASH FLOW
Cash From Operating Activities	$171.0M	$138.6M
Capital Expenditures	$127.8M	$123.5M
Free Cash Flow	$43.18M	$15.07M
YoY Change	186.49%	-168.11%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2016Q1	dei	Amendment Flag AmendmentFlag	false
CY2016Q1	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2016Q1	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q1
CY2016Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2016
CY2016Q1	dei	Document Period End Date DocumentPeriodEndDate	2016-03-31
CY2016Q1	dei	Document Type DocumentType	10-Q
CY2016Q1	dei	Entity Central Index Key EntityCentralIndexKey	0000354707
CY2016Q2	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	107890279	shares
CY2016Q1	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2016Q1	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2016Q1	dei	Entity Registrant Name EntityRegistrantName	HAWAIIAN ELECTRIC INDUSTRIES INC
CY2015Q1	he	Additions To Electric Utility Property Plant And Equipment Unpaid Invoices And Other AdditionsToElectricUtilityPropertyPlantAndEquipmentUnpaidInvoicesAndOther	41000000	USD
CY2016Q1	he	Additions To Electric Utility Property Plant And Equipment Unpaid Invoices And Other AdditionsToElectricUtilityPropertyPlantAndEquipmentUnpaidInvoicesAndOther	48000000	USD
CY2014Q2	he	Debt Instrument Covenant Consolidated Debt To Total Consolidated Capitalization Ratio DebtInstrumentCovenantConsolidatedDebtToTotalConsolidatedCapitalizationRatio	0.35
CY2016Q1	he	Debt Instrument Covenant Consolidated Debt To Total Consolidated Capitalization Ratio Actual DebtInstrumentCovenantConsolidatedDebtToTotalConsolidatedCapitalizationRatioActual	0.57
CY2014Q2	he	Debt Instrument Covenant Consolidated Subsidiary Debt To Total Consolidated Capitalization Ratio DebtInstrumentCovenantConsolidatedSubsidiaryDebtToTotalConsolidatedCapitalizationRatio	0.65
CY2016Q1	he	Debt Instrument Covenant Nonconsolidated Capitalization Ratio Actual DebtInstrumentCovenantNonconsolidatedCapitalizationRatioActual	0.17
CY2016Q1	he	Defined Benefit Plan Number Of Years Regulatory Assets Or Liability Will Be Amortized For Each Utility Which Start From Respective Utilities Next Rate Case DefinedBenefitPlanNumberOfYearsRegulatoryAssetsOrLiabilityWillBeAmortizedForEachUtilityWhichStartFromRespectiveUtilitiesNextRateCase	P5Y
CY2015Q1	he	Defined Contribution Plan Contributions By Employer DefinedContributionPlanContributionsByEmployer	2500000	USD
CY2016Q1	he	Defined Contribution Plan Contributions By Employer DefinedContributionPlanContributionsByEmployer	2700000	USD
CY2016Q1	he	Derivative Termof Contract Maturity Window DerivativeTermofContractMaturityWindow	P30D
CY2013Q4	he	Equity Forward Transaction Delivery Of Cash On Settlement EquityForwardTransactionDeliveryOfCashOnSettlement	32100000	USD
CY2014Q3	he	Equity Forward Transaction Delivery Of Cash On Settlement EquityForwardTransactionDeliveryOfCashOnSettlement	23900000	USD
CY2015Q1	he	Equity Forward Transaction Delivery Of Cash On Settlement EquityForwardTransactionDeliveryOfCashOnSettlement	104500000	USD
CY2013Q4	he	Equity Forward Transaction Delivery Of Net Shares On Settlement EquityForwardTransactionDeliveryOfNetSharesOnSettlement	1300000	shares
CY2014Q3	he	Equity Forward Transaction Delivery Of Net Shares On Settlement EquityForwardTransactionDeliveryOfNetSharesOnSettlement	1000000	shares
CY2015Q1	he	Equity Forward Transaction Delivery Of Net Shares On Settlement EquityForwardTransactionDeliveryOfNetSharesOnSettlement	4700000	shares
CY2013Q1	he	Equity Forward Transaction Forward Sale Price EquityForwardTransactionForwardSalePrice	25.74688
CY2013Q1	he	Equity Forward Transaction Initial Fair Value EquityForwardTransactionInitialFairValue	0
CY2013Q1	he	Equity Forward Transaction Sale Of Stock Price Per Share EquityForwardTransactionSaleOfStockPricePerShare	26.75
CY2013Q1	he	Equity Forward Transaction Shares Borrowed EquityForwardTransactionSharesBorrowed	7000000	shares
CY2013Q1	he	Equity Forward Transaction Shares In Connection With Public Offering EquityForwardTransactionSharesInConnectionWithPublicOffering	6100000	shares
CY2013Q1	he	Equity Forward Transaction Shares In Connection With Underwriters Exercising Over Allotment Option EquityForwardTransactionSharesInConnectionWithUnderwritersExercisingOverAllotmentOption	900000	shares
CY2013Q4	he	Equity Forward Transaction Underwriting Discount EquityForwardTransactionUnderwritingDiscount	1300000	USD
CY2014Q3	he	Equity Forward Transaction Underwriting Discount EquityForwardTransactionUnderwritingDiscount	1000000	USD
CY2015Q1	he	Equity Forward Transaction Underwriting Discount EquityForwardTransactionUnderwritingDiscount	4700000	USD
CY2013Q1	he	Equity Forward Transaction Underwriting Discount Per Share EquityForwardTransactionUnderwritingDiscountPerShare	1.00312
CY2016Q1	he	Financing Receivable Troubled Debt Restructuring Contract That Subsequently Defaulted Value FinancingReceivableTroubledDebtRestructuringContractThatSubsequentlyDefaultedValue	488000	USD
CY2016Q1	he	Financing Receivable Troubled Debt Restructuring Contracts That Subsequently Defaulted Number FinancingReceivableTroubledDebtRestructuringContractsThatSubsequentlyDefaultedNumber	1	contract
CY2015Q1	he	Income Loss From Continuing Operations Before Income Taxes Minority Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterest	52318000	USD
CY2016Q1	he	Income Loss From Continuing Operations Before Income Taxes Minority Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterest	51126000	USD
CY2015	he	Income Tax Expense Expected Increase In Depreciation Expense Amount IncomeTaxExpenseExpectedIncreaseInDepreciationExpenseAmount	117000000	USD
CY2015Q1	he	Increase Decrease In Accounts Payable And Interest And Dividends Payable IncreaseDecreaseInAccountsPayableAndInterestAndDividendsPayable	22053000	USD
CY2016Q1	he	Increase Decrease In Accounts Payable And Interest And Dividends Payable IncreaseDecreaseInAccountsPayableAndInterestAndDividendsPayable	30135000	USD
CY2015Q1	he	Increase Decrease In Pension And Other Postretirement Defined Benefit Plans Liability IncreaseDecreaseInPensionAndOtherPostretirementDefinedBenefitPlansLiability	123000	USD
CY2016Q1	he	Increase Decrease In Pension And Other Postretirement Defined Benefit Plans Liability IncreaseDecreaseInPensionAndOtherPostretirementDefinedBenefitPlansLiability	137000	USD
CY2015Q1	he	Increase Decrease In Prepaid And Accrued Income Taxes And Utility Revenue Taxes IncreaseDecreaseInPrepaidAndAccruedIncomeTaxesAndUtilityRevenueTaxes	-9461000	USD
CY2016Q1	he	Increase Decrease In Prepaid And Accrued Income Taxes And Utility Revenue Taxes IncreaseDecreaseInPrepaidAndAccruedIncomeTaxesAndUtilityRevenueTaxes	-14343000	USD
CY2015Q1	he	Increase Decrease In Retail Repurchase Agreements IncreaseDecreaseInRetailRepurchaseAgreements	21451000	USD
CY2016Q1	he	Increase Decrease In Retail Repurchase Agreements IncreaseDecreaseInRetailRepurchaseAgreements	19041000	USD
CY2015Q4	he	Interest And Dividends Payable Including Dividends On Preferred Stock Of Subsidiaries InterestAndDividendsPayableIncludingDividendsOnPreferredStockOfSubsidiaries	26042000	USD
CY2016Q1	he	Interest And Dividends Payable Including Dividends On Preferred Stock Of Subsidiaries InterestAndDividendsPayableIncludingDividendsOnPreferredStockOfSubsidiaries	27890000	USD
CY2015Q1	he	Interest Expense On Other Than Deposits And Bank Borrowings InterestExpenseOnOtherThanDepositsAndBankBorrowings	19100000	USD
CY2016Q1	he	Interest Expense On Other Than Deposits And Bank Borrowings InterestExpenseOnOtherThanDepositsAndBankBorrowings	20126000	USD
CY2015Q1	he	Interest Paid To Non Affiliates InterestPaidToNonAffiliates	21000000	USD
CY2016Q1	he	Interest Paid To Non Affiliates InterestPaidToNonAffiliates	20000000	USD
CY2015Q2	he	Long Term Purchase Commitment Arbitration Additional Capacity Requirement LongTermPurchaseCommitmentArbitrationAdditionalCapacityRequirement	9	MW
CY2015Q4	he	Long Term Purchase Commitment Arbitration Additional Capacity Requirement LongTermPurchaseCommitmentArbitrationAdditionalCapacityRequirement	9	MW
CY1988Q1	he	Longterm Purchase Commitment Minimum Power Volume Required LongtermPurchaseCommitmentMinimumPowerVolumeRequired	180	MW
CY2012Q3	he	Longterm Purchase Commitment Minimum Power Volume Required LongtermPurchaseCommitmentMinimumPowerVolumeRequired	186	MW
CY2015Q2	he	Longterm Purchase Commitment Period Tranche One LongtermPurchaseCommitmentPeriodTrancheOne	P5Y
CY2015Q2	he	Longterm Purchase Commitment Period Tranche Three LongtermPurchaseCommitmentPeriodTrancheThree	P10Y
CY2015Q2	he	Longterm Purchase Commitment Period Tranche Two LongtermPurchaseCommitmentPeriodTrancheTwo	P5Y
CY2015Q1	he	Mortgage Loanson Real Estate Repurchase Reserve MortgageLoansonRealEstateRepurchaseReserve	0	USD
CY2016Q1	he	Mortgage Loanson Real Estate Repurchase Reserve MortgageLoansonRealEstateRepurchaseReserve	100000	USD
CY2014Q2	he	Number Of Financial Institutions NumberOfFinancialInstitutions	9	Institution
CY2015Q3	he	Number Of States Included In Interim Statewide Emission Limits NumberOfStatesIncludedInInterimStatewideEmissionLimits	48	state
CY2012Q1	he	Number Of Utilities Impacted By Proposed Rules Of Mact NumberOfUtilitiesImpactedByProposedRulesOfMACT	14	generation_unit
CY2015Q4	he	Other Bank Borrowings OtherBankBorrowings	328582000	USD
CY2016Q1	he	Other Bank Borrowings OtherBankBorrowings	329081000	USD
CY2015Q1	he	Other Comprehensive Income Reclassification Adjustment For Impact Of Decision And Orders Of The Puc Included In Regulatory Assets Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentForImpactOfDecisionAndOrdersOfThePUCIncludedInRegulatoryAssetsNetOfTax	4911000	USD
CY2016Q1	he	Other Comprehensive Income Reclassification Adjustment For Impact Of Decision And Orders Of The Puc Included In Regulatory Assets Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentForImpactOfDecisionAndOrdersOfThePUCIncludedInRegulatoryAssetsNetOfTax	3222000	USD
CY2015Q1	he	Other Comprehensive Income Reclassification Adjustment For Impact Of Decision And Orders Of The Puc Included In Regulatory Assets Tax OtherComprehensiveIncomeReclassificationAdjustmentForImpactOfDecisionAndOrdersOfThePUCIncludedInRegulatoryAssetsTax	-3127000	USD
CY2016Q1	he	Other Comprehensive Income Reclassification Adjustment For Impact Of Decision And Orders Of The Puc Included In Regulatory Assets Tax OtherComprehensiveIncomeReclassificationAdjustmentForImpactOfDecisionAndOrdersOfThePUCIncludedInRegulatoryAssetsTax	-2052000	USD
CY2015Q1	he	Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Prior Service Gain Loss And Net Transition Asset Obligation Recognized In Net Periodic Benefit Cost Net Of Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossPriorServiceGainLossAndNetTransitionAssetObligationRecognizedInNetPeriodicBenefitCostNetOfTax	5459000	USD
CY2016Q1	he	Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Prior Service Gain Loss And Net Transition Asset Obligation Recognized In Net Periodic Benefit Cost Net Of Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossPriorServiceGainLossAndNetTransitionAssetObligationRecognizedInNetPeriodicBenefitCostNetOfTax	3538000	USD
CY2015Q1	he	Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Prior Service Gain Loss And Reclassification Of Defined Benefit Plan Net Transition Asset Obligation Recognized In Net Periodic Benefit Cost Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossPriorServiceGainLossAndReclassificationOfDefinedBenefitPlanNetTransitionAssetObligationRecognizedInNetPeriodicBenefitCostTax	3486000	USD
CY2016Q1	he	Other Comprehensive Income Reclassification Of Defined Benefit Plans Net Gain Loss Prior Service Gain Loss And Reclassification Of Defined Benefit Plan Net Transition Asset Obligation Recognized In Net Periodic Benefit Cost Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossPriorServiceGainLossAndReclassificationOfDefinedBenefitPlanNetTransitionAssetObligationRecognizedInNetPeriodicBenefitCostTax	2257000	USD
CY2016Q1	he	Power Purchase Agreement Termination Period PowerPurchaseAgreementTerminationPeriod	P60D
CY2015Q1	he	Proceeds From Other Bank Borrowings ProceedsFromOtherBankBorrowings	0	USD
CY2016Q1	he	Proceeds From Other Bank Borrowings ProceedsFromOtherBankBorrowings	20835000	USD
CY2015Q1	he	Proceeds From Principal Repayments On Investment And Mortgage Related Securities ProceedsFromPrincipalRepaymentsOnInvestmentAndMortgageRelatedSecurities	28486000	USD
CY2016Q1	he	Proceeds From Principal Repayments On Investment And Mortgage Related Securities ProceedsFromPrincipalRepaymentsOnInvestmentAndMortgageRelatedSecurities	48819000	USD
CY2015Q2	he	Public Utilities Increase Decrease In Customer Monthly Bill PublicUtilitiesIncreaseDecreaseInCustomerMonthlyBill	0.01	USD
CY2014Q2	he	Public Utilities Ordersfrom Regulatory Agency Number PublicUtilitiesOrdersfromRegulatoryAgencyNumber	4	order
CY2014Q3	he	Public Utilities Percent Of Energy Production From Renewable Energy Sources PublicUtilitiesPercentOfEnergyProductionFromRenewableEnergySources	0.65
CY2016Q1	he	Public Utility Decrease In Project Costs PublicUtilityDecreaseInProjectCosts	9700000	USD
CY2014Q3	he	Public Utility Enterprise Resource Management System Project Costs PublicUtilityEnterpriseResourceManagementSystemProjectCosts	82400000	USD
CY2015Q2	he	Public Utility Enterprise Resource Management System Project Difference In Cost Between Replacing System And Utilizing Potential Merger Subsidiarys Existing System PublicUtilityEnterpriseResourceManagementSystemProjectDifferenceInCostBetweenReplacingSystemAndUtilizingPotentialMergerSubsidiarysExistingSystem	20800000	USD
CY2015Q3	he	Public Utility Maximum Project Budget PublicUtilityMaximumProjectBudget	167000000	USD
CY2016Q1	he	Public Utility Maximum Project Budget PublicUtilityMaximumProjectBudget	157300000	USD
CY2012Q3	he	Public Utility Project Facility Capacity PublicUtilityProjectFacilityCapacity	50	MW
CY2015Q3	he	Public Utility Project Percent Of Cost Recoverable Through Recovery Mechanisms Other Than Base Rates PublicUtilityProjectPercentOfCostRecoverableThroughRecoveryMechanismsOtherThanBaseRates	0.9
CY2015Q2	he	Purchase Agreement Annual Capacity Purchases Tranche One PurchaseAgreementAnnualCapacityPurchasesTrancheOne	700000
CY2015Q2	he	Purchase Agreement Annual Capacity Purchases Tranche Three PurchaseAgreementAnnualCapacityPurchasesTrancheThree	500000
CY2015Q2	he	Purchase Agreement Annual Capacity Purchases Tranche Two PurchaseAgreementAnnualCapacityPurchasesTrancheTwo	600000
CY2015Q2	he	Purchase Agreement Annual Capacity Purchases Year Eight PurchaseAgreementAnnualCapacityPurchasesYearEight	600000
CY2015Q2	he	Purchase Agreement Annual Capacity Purchases Year Eighteen PurchaseAgreementAnnualCapacityPurchasesYearEighteen	500000
CY2015Q2	he	Purchase Agreement Annual Capacity Purchases Year Fifteen PurchaseAgreementAnnualCapacityPurchasesYearFifteen	500000
CY2015Q2	he	Purchase Agreement Annual Capacity Purchases Year Five PurchaseAgreementAnnualCapacityPurchasesYearFive	700000
CY2015Q2	he	Purchase Agreement Annual Capacity Purchases Year Four PurchaseAgreementAnnualCapacityPurchasesYearFour	700000
CY2015Q2	he	Purchase Agreement Annual Capacity Purchases Year Fourteen PurchaseAgreementAnnualCapacityPurchasesYearFourteen	500000
CY2015Q2	he	Purchase Agreement Annual Capacity Purchases Year Nine PurchaseAgreementAnnualCapacityPurchasesYearNine	600000
CY2015Q2	he	Purchase Agreement Annual Capacity Purchases Year Nineteen PurchaseAgreementAnnualCapacityPurchasesYearNineteen	500000
CY2015Q2	he	Purchase Agreement Annual Capacity Purchases Year Seven PurchaseAgreementAnnualCapacityPurchasesYearSeven	600000
CY2015Q2	he	Purchase Agreement Annual Capacity Purchases Year Seventeen PurchaseAgreementAnnualCapacityPurchasesYearSeventeen	500000
CY2015Q2	he	Purchase Agreement Annual Capacity Purchases Year Sixteen PurchaseAgreementAnnualCapacityPurchasesYearSixteen	500000
CY2015Q2	he	Purchase Agreement Annual Capacity Purchases Year Ten PurchaseAgreementAnnualCapacityPurchasesYearTen	600000
CY2015Q2	he	Purchase Agreement Annual Capacity Purchases Year Thirteen PurchaseAgreementAnnualCapacityPurchasesYearThirteen	500000
CY2015Q2	he	Purchase Agreement Annual Capacity Purchases Year Three PurchaseAgreementAnnualCapacityPurchasesYearThree	700000
CY2015Q2	he	Purchase Agreement Annual Capacity Purchases Year Twelve PurchaseAgreementAnnualCapacityPurchasesYearTwelve	500000
CY2015Q2	he	Purchase Agreement Annual Capacity Purchases Year Twenty PurchaseAgreementAnnualCapacityPurchasesYearTwenty	500000
CY2015Q2	he	Purchase Agreement Annual Capacity Purchases Year Two PurchaseAgreementAnnualCapacityPurchasesYearTwo	700000
CY2015Q1	he	Repayments Of Other Bank Borrowings RepaymentsOfOtherBankBorrowings	0	USD
CY2016Q1	he	Repayments Of Other Bank Borrowings RepaymentsOfOtherBankBorrowings	39369000	USD
CY2015Q4	he	Revenue Requirement Associated With Plant Additions RevenueRequirementAssociatedWithPlantAdditions	40300000	USD
	he	Revenue Requirement Associated With Plant Additions RevenueRequirementAssociatedWithPlantAdditions	35700000	USD
CY2015Q4	he	Securities Sold Under Agreements To Repurchase Collateral Right To Reclaim Financial Instruments SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimFinancialInstruments	261000000	USD
CY2016Q1	he	Securities Sold Under Agreements To Repurchase Collateral Right To Reclaim Financial Instruments SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimFinancialInstruments	262000000	USD
CY2015Q3	he	Software Acquisition Expense SoftwareAcquisitionExpense	4800000	USD
CY2015Q4	us-gaap	Accounts Payable Current And Noncurrent AccountsPayableCurrentAndNoncurrent	138523000	USD
CY2016Q1	us-gaap	Accounts Payable Current And Noncurrent AccountsPayableCurrentAndNoncurrent	119288000	USD
CY2015Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	242766000	USD
CY2016Q1	us-gaap	Accounts Receivable Net AccountsReceivableNet	210280000	USD
CY2015Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	2339319000	USD
CY2016Q1	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	2355984000	USD
CY2014Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-27378000	USD
CY2015Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-23320000	USD
CY2015Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-26262000	USD
CY2016Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-17462000	USD
CY2015Q1	us-gaap	Adjustment For Amortization AdjustmentForAmortization	2371000	USD
CY2016Q1	us-gaap	Adjustment For Amortization AdjustmentForAmortization	1928000	USD
CY2015Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1800000	USD
CY2016Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1000000	USD
CY2015Q4	us-gaap	Assets Assets	11782018000	USD
CY2016Q1	us-gaap	Assets Assets	11870506000	USD
CY2016Q1	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	215716000	USD
CY2015Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	820648000	USD
CY2016Q1	us-gaap	Available For Sale Securities AvailableForSaleSecurities	906295000	USD
CY2015Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	4589000	USD
CY2016Q1	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	10930000	USD
CY2015Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	7697000	USD
CY2016Q1	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	1705000	USD
CY2015Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	823756000	USD
CY2016Q1	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	897070000	USD
CY2015	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses	3965000	USD
CY2016Q1	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses	1449000	USD
CY2015	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses	3732000	USD
CY2016Q1	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses	256000	USD
CY2015Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	388838000	USD
CY2016Q1	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	67217000	USD
CY2015Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	143195000	USD
CY2016Q1	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	110502000	USD
CY2016Q1	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	66398000	USD
CY2016Q1	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	67413000	USD
CY2016Q1	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	111299000	USD
CY2016Q1	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	112991000	USD
CY2016Q1	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	38019000	USD
CY2016Q1	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	38293000	USD
CY2016Q1	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	0	USD
CY2016Q1	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	0	USD
CY2016Q1	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	681354000	USD
CY2016Q1	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	687598000	USD
CY2016Q1	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	218697000	USD
CY2015Q4	us-gaap	Available For Sale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Less Than One Year AvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanOneYear	51	issue
CY2016Q1	us-gaap	Available For Sale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Less Than One Year AvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanOneYear	9	issue
CY2015Q4	us-gaap	Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Greater Than Or Equal To One Year AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear	28	issue
CY2016Q1	us-gaap	Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Greater Than Or Equal To One Year AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear	23	issue
CY2014Q4	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	175542000	USD
CY2015Q1	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	292168000	USD
CY2015Q4	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	300478000	USD
CY2016Q1	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	334743000	USD
CY2015Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2016Q1	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2015Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.31
CY2016Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.31
CY2015Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000	shares
CY2016Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000	shares
CY2015Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	107460406	shares
CY2016Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	107875779	shares
CY2015Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	107460406	shares
CY2016Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	107875779	shares
CY2015Q4	us-gaap	Common Stocks Including Additional Paid In Capital Net Of Discount CommonStocksIncludingAdditionalPaidInCapitalNetOfDiscount	1629136000	USD
CY2016Q1	us-gaap	Common Stocks Including Additional Paid In Capital Net Of Discount CommonStocksIncludingAdditionalPaidInCapitalNetOfDiscount	1635890000	USD
CY2015Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	35924000	USD
CY2016Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	41152000	USD
CY2015Q4	us-gaap	Contributions In Aid Of Construction ContributionsInAidOfConstruction	506087000	USD
CY2016Q1	us-gaap	Contributions In Aid Of Construction ContributionsInAidOfConstruction	513520000	USD
CY2015Q1	us-gaap	Costs And Expenses CostsAndExpenses	568356000	USD
CY2016Q1	us-gaap	Costs And Expenses CostsAndExpenses	482109000	USD
CY2015Q1	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	3828000	USD
CY2016Q1	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	13008000	USD
CY2015Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	680877000	USD
CY2016Q1	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	700782000	USD
CY2015	us-gaap	Defined Benefit Plan Benefits Paid DefinedBenefitPlanBenefitsPaid	1000000	USD
CY2016Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Remainder Of Fiscal Year DefinedBenefitPlanExpectedFutureBenefitPaymentsRemainderOfFiscalYear	2000000	USD
CY2015Q1	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1400000	USD
CY2016Q1	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1400000	USD
CY2015Q4	us-gaap	Deposits Deposits	5025254000	USD
CY2016Q1	us-gaap	Deposits Deposits	5139932000	USD
CY2015Q1	us-gaap	Depreciation Depreciation	45865000	USD
CY2016Q1	us-gaap	Depreciation Depreciation	48594000	USD
CY2015Q1	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	286000	USD
CY2016Q1	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	108000	USD
CY2015Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	31840000	USD
CY2016Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	33367000	USD
CY2015Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.31
CY2016Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.30
CY2015Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.31
CY2016Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.30
CY2015Q1	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	40000	USD
CY2015Q1	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	600000	USD
CY2016Q1	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	300000	USD
CY2016Q1	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	200000	USD
CY2015Q1	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	968000	USD
CY2016Q1	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	380000	USD
CY2015Q1	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	968000	USD
CY2016Q1	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	380000	USD
CY2015Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	10678000	USD
CY2016Q1	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	11218000	USD
CY2014Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	45618000	USD
CY2015Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	45795000	USD
CY2015Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	50038000	USD
CY2016Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	52326000	USD
CY2015Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	43718000	USD
CY2016Q1	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	45503000	USD
CY2015Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	6320000	USD
CY2016Q1	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	6823000	USD
CY2015Q1	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	710000	USD
CY2016Q1	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	480000	USD
CY2015Q1	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	1147000	USD
CY2016Q1	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	2958000	USD
CY2015Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	4568383000	USD
CY2016Q1	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	4586935000	USD
CY2015Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	53685000	USD
CY2015Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	53685000	USD
CY2016Q1	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	19003000	USD
CY2015	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	144000	USD
CY2016Q1	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	60721000	USD
CY2015	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	22246000	USD
CY2016Q1	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	28625000	USD
CY2015Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	0	USD
CY2016Q1	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	0	USD
CY2015Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	4595969000	USD
CY2016Q1	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	4623107000	USD
CY2015Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	46035000	USD
CY2016Q1	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	46913000	USD
CY2015Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	26099000	USD
CY2016Q1	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	24549000	USD
CY2015Q4	us-gaap	Goodwill Goodwill	82190000	USD
CY2016Q1	us-gaap	Goodwill Goodwill	82190000	USD
CY2015	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	49243000	USD
CY2016Q1	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	55180000	USD
CY2015	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	409000	USD
CY2016Q1	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	319000	USD
CY2016Q1	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	60721000	USD
CY2015Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	6320000	USD
CY2016Q1	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	6823000	USD
CY2015Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	57630000	USD
CY2016Q1	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	64758000	USD
CY2015	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	22439000	USD
CY2016Q1	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	73000	USD
CY2015Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	19806000	USD
CY2016Q1	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	19149000	USD
CY2015Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	22934000	USD
CY2016Q1	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	22210000	USD
CY2015	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	26804000	USD
CY2016Q1	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	36177000	USD
CY2015	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	265000	USD
CY2016Q1	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	246000	USD
CY2015Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	33879000	USD
CY2016Q1	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	41572000	USD
CY2015Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	34696000	USD
CY2016Q1	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	42548000	USD
CY2015Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	19979000	USD
CY2016Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	18301000	USD
CY2015Q1	us-gaap	Income Taxes Paid IncomeTaxesPaid	1000000	USD
CY2016Q1	us-gaap	Income Taxes Paid IncomeTaxesPaid	1000000	USD
CY2015Q1	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	127913000	USD
CY2016Q1	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	114678000	USD
CY2015Q1	us-gaap	Increase Decrease In Fuel Inventories IncreaseDecreaseInFuelInventories	-20731000	USD
CY2016Q1	us-gaap	Increase Decrease In Fuel Inventories IncreaseDecreaseInFuelInventories	-22812000	USD
CY2015Q1	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	25992000	USD
CY2016Q1	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-4499000	USD
CY2015Q1	us-gaap	Increase Decrease In Other Regulatory Assets IncreaseDecreaseInOtherRegulatoryAssets	10827000	USD
CY2016Q1	us-gaap	Increase Decrease In Other Regulatory Assets IncreaseDecreaseInOtherRegulatoryAssets	-1585000	USD
CY2015Q1	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-58331000	USD
CY2016Q1	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-28108000	USD
CY2015Q1	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	286000	shares
CY2016Q1	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	161000	shares
CY2015Q4	us-gaap	Liabilities Liabilities	9820085000	USD
CY2016Q1	us-gaap	Liabilities Liabilities	9894034000	USD
CY2015Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	11782018000	USD
CY2016Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	11870506000	USD
CY2015Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	4565781000	USD
CY2016Q1	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	4589950000	USD
CY2015Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	4631000	USD
CY2016Q1	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	7900000	USD
CY2015Q4	us-gaap	Long Term Debt LongTermDebt	1578368000	USD
CY2016Q1	us-gaap	Long Term Debt LongTermDebt	1578618000	USD
CY1988Q1	us-gaap	Longterm Purchase Commitment Period LongtermPurchaseCommitmentPeriod	P30Y
CY2015Q1	us-gaap	Loss Contingency New Claims Filed Number LossContingencyNewClaimsFiledNumber	8	complaint
CY2015Q1	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	116626000	USD
CY2016Q1	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	34265000	USD
CY2015Q1	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	130061000	USD
CY2016Q1	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	78924000	USD
CY2015Q1	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-152045000	USD
CY2016Q1	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-215251000	USD
CY2015Q1	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	138610000	USD
CY2016Q1	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	170592000	USD
CY2015Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	31866000	USD
CY2016Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	32352000	USD
CY2015Q1	us-gaap	Noncontrolling Interest In Net Income Loss Preferred Unit Holders Redeemable NoncontrollingInterestInNetIncomeLossPreferredUnitHoldersRedeemable	473000	USD
CY2016Q1	us-gaap	Noncontrolling Interest In Net Income Loss Preferred Unit Holders Redeemable NoncontrollingInterestInNetIncomeLossPreferredUnitHoldersRedeemable	473000	USD
CY2015Q4	us-gaap	Notes Receivable Net NotesReceivableNet	4622068000	USD
CY2016Q1	us-gaap	Notes Receivable Net NotesReceivableNet	4647656000	USD
CY2015Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	69506000	USD
CY2016Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	68851000	USD
CY2015Q4	us-gaap	Other Assets OtherAssets	480457000	USD
CY2016Q1	us-gaap	Other Assets OtherAssets	415955000	USD
CY2015Q1	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	0	USD
CY2016Q1	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	1002000	USD
CY2015Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	4058000	USD
CY2016Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	8800000	USD
CY2015Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	4058000	USD
CY2016Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	8800000	USD
CY2015Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-59000	USD
CY2016Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-54000	USD
CY2015Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	37000	USD
CY2016Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	35000	USD
CY2015Q1	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	0	USD
CY2016Q1	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	638000	USD
CY2015Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	3451000	USD
CY2016Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	7428000	USD
CY2015Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	2278000	USD
CY2016Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	4905000	USD
CY2015Q4	us-gaap	Other Liabilities OtherLiabilities	471828000	USD
CY2016Q1	us-gaap	Other Liabilities OtherLiabilities	421155000	USD
CY2015Q4	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	103063000	USD
CY2016Q1	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	95485000	USD
CY2015Q1	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	79070000	USD
CY2016Q1	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	42719000	USD
CY2015Q1	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	12524000	USD
CY2016Q1	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	28137000	USD
CY2015Q1	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-3549000	USD
CY2016Q1	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-819000	USD
CY2015Q1	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	31829000	USD
CY2016Q1	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	27716000	USD
CY2015Q1	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	473000	USD
CY2016Q1	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	473000	USD
CY2015Q1	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	63370000	USD
CY2016Q1	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	122387000	USD
CY2015Q1	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	0	USD
CY2016Q1	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	1373000	USD
CY2015Q1	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	123527000	USD
CY2016Q1	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	127818000	USD
CY2015Q1	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	9000000	USD
CY2016Q1	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	9000000	USD
CY2015Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	589918000	USD
CY2016Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	584490000	USD
CY2015Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2016Q1	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2015Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2016Q1	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2015Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2016Q1	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2015Q1	us-gaap	Proceeds From Contribution In Aid Of Construction ProceedsFromContributionInAidOfConstruction	9145000	USD
CY2016Q1	us-gaap	Proceeds From Contribution In Aid Of Construction ProceedsFromContributionInAidOfConstruction	13761000	USD
CY2015Q1	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	47000000	USD
CY2016Q1	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	45000000	USD
CY2015Q1	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2016Q1	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	75000000	USD
CY2015Q1	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-3965000	USD
CY2016Q1	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-3896000	USD
CY2015Q1	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	-88472000	USD
CY2016Q1	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	-7578000	USD
CY2015Q1	us-gaap	Proceeds From Repurchase Of Equity ProceedsFromRepurchaseOfEquity	104468000	USD
CY2016Q1	us-gaap	Proceeds From Repurchase Of Equity ProceedsFromRepurchaseOfEquity	3022000	USD
CY2015Q1	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	5590000	USD
CY2016Q1	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	833000	USD
CY2015Q1	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	78332000	USD
CY2016Q1	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	40363000	USD
CY2015Q1	us-gaap	Proceeds From Sale Of Wholly Owned Real Estate And Real Estate Acquired In Settlement Of Loans ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans	606000	USD
CY2016Q1	us-gaap	Proceeds From Sale Of Wholly Owned Real Estate And Real Estate Acquired In Settlement Of Loans ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans	232000	USD
CY2015Q1	us-gaap	Profit Loss ProfitLoss	32339000	USD
CY2016Q1	us-gaap	Profit Loss ProfitLoss	32825000	USD
CY2015Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	4377658000	USD
CY2016Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	4423567000	USD
CY2015Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	614000	USD
CY2016Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	4766000	USD
CY2015Q1	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	614000	USD
CY2016Q1	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	4766000	USD
CY2015Q1	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	1413000	USD
CY2016Q1	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	1739000	USD
CY2015Q1	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	-499000	USD
CY2016Q1	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	-662000	USD
CY2015Q4	us-gaap	Regulatory Assets RegulatoryAssets	896731000	USD
CY2016Q1	us-gaap	Regulatory Assets RegulatoryAssets	888408000	USD
CY2015Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	371543000	USD
CY2016Q1	us-gaap	Regulatory Liabilities RegulatoryLiabilities	383793000	USD
CY2015Q1	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	USD
CY2016Q1	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	75000000	USD
CY2015Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	324766000	USD
CY2016Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	323751000	USD
CY2015Q1	us-gaap	Revenues Revenues	637862000	USD
CY2016Q1	us-gaap	Revenues Revenues	550960000	USD
CY2015Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	229000000	USD
CY2016Q1	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	229000000	USD
CY2015Q4	us-gaap	Securities Sold Under Agreements To Repurchase Gross SecuritiesSoldUnderAgreementsToRepurchaseGross	229000000	USD
CY2016Q1	us-gaap	Securities Sold Under Agreements To Repurchase Gross SecuritiesSoldUnderAgreementsToRepurchaseGross	229000000	USD
CY2015Q1	us-gaap	Share Based Compensation ShareBasedCompensation	1754000	USD
CY2016Q1	us-gaap	Share Based Compensation ShareBasedCompensation	1013000	USD
CY2013Q1	us-gaap	Share Price SharePrice	27.01
CY2015Q1	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	0	USD
CY2016Q1	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	6000000	USD
CY2015Q1	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	103252000	USD
CY2016Q1	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	6754000	USD
CY2014Q4	us-gaap	Stockholders Equity StockholdersEquity	1790573000	USD
CY2015Q1	us-gaap	Stockholders Equity StockholdersEquity	1897909000	USD
CY2015Q4	us-gaap	Stockholders Equity StockholdersEquity	1927640000	USD
CY2016Q1	us-gaap	Stockholders Equity StockholdersEquity	1942179000	USD
CY2015Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	34293000	USD
CY2016Q1	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	34293000	USD
CY2015Q1	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	5000000	USD
CY2016Q1	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	0	USD
CY2015Q1	us-gaap	Utilities Operating Expense Purchased Power UtilitiesOperatingExpensePurchasedPower	136000000	USD
CY2016Q1	us-gaap	Utilities Operating Expense Purchased Power UtilitiesOperatingExpensePurchasedPower	116000000	USD
CY2015Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	103567000	shares
CY2016Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	107781000	shares
CY2015Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	103281000	shares
CY2016Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	107620000	shares

Files In Submission

Name	View Source	Status
0000354707-16-000143-index-headers.html	Edgar Link	pending
0000354707-16-000143-index.html	Edgar Link	pending
0000354707-16-000143.txt	Edgar Link	pending
0000354707-16-000143-xbrl.zip	Edgar Link	pending
exhibit101.htm	Edgar Link	pending
exhibit102.htm	Edgar Link	pending
exhibit103.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
he-03312016x10q.htm	Edgar Link	pending
he-20160331.xml	Edgar Link	completed
he-20160331.xsd	Edgar Link	pending
he-20160331_cal.xml	Edgar Link	unprocessable
he-20160331_def.xml	Edgar Link	unprocessable
he-20160331_lab.xml	Edgar Link	unprocessable
he-20160331_pre.xml	Edgar Link	unprocessable
heco-03312016xex122.htm	Edgar Link	pending
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$HE
HAWAIIAN ELECTRIC INDUSTRIES INC Stock $he

2016 Q1 Form 10-Q Financial Statement

#000035470716000143 Filed on May 04, 2016

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HE HAWAIIAN ELECTRIC INDUSTRIES INC Stock $he

2016 Q1 Form 10-Q Financial Statement

#000035470716000143 Filed on May 04, 2016

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HE
HAWAIIAN ELECTRIC INDUSTRIES INC Stock $he