$HE
HAWAIIAN ELECTRIC INDUSTRIES INC Stock $he

$he Overview Financials Valuation SEC Filings Company Website

2018 Q4 Form 10-Q Financial Statement

#000035470718000071 Filed on November 07, 2018

Income Statement

Concept	2018 Q4	2018 Q3	2017 Q3
Revenue	$761.7M	$768.0M	$673.2M
YoY Change	15.65%	14.09%	4.2%
Cost Of Revenue	$677.0M	$670.0M	$561.7M
YoY Change	18.48%	19.28%	3.9%
Gross Profit	$84.60M	$98.10M	$111.5M
YoY Change	-2.98%	-12.02%	5.79%
Gross Profit Margin	11.11%	12.77%	16.56%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$54.40M	$53.50M	$50.00M
YoY Change	7.51%	7.0%	2.88%
% of Gross Profit	64.3%	54.54%	44.84%
Operating Expenses	$0.00	$0.00	$0.00
YoY Change
Operating Profit	$84.60M	$98.06M	$111.5M
YoY Change	-3.0%	-12.03%	5.72%
Interest Expense	-$18.90M	-$19.60M	-$14.40M
YoY Change	27.7%	36.11%	-11.11%
% of Operating Profit	-22.34%	-19.99%	-12.92%
Other Income/Expense, Net	-$1.300M	-$1.300M	-$1.900M
YoY Change	-40.91%	-31.58%	-102.11%
Pretax Income	$64.40M	$77.23M	$95.14M
YoY Change	-8.26%	-18.82%	-46.91%
Income Tax	$23.90M	$10.86M	$34.60M
% Of Pretax Income	37.11%	14.06%	36.36%
Net Earnings	$50.05M	$66.37M	$60.54M
YoY Change	52.38%	9.62%	-52.56%
Net Earnings / Revenue	6.57%	8.64%	8.99%
Basic Earnings Per Share	$0.46	$0.61	$0.55
Diluted Earnings Per Share	$0.45	$0.60	$0.55
COMMON SHARES
Basic Shares Outstanding	108.9M shares	108.9M shares	108.8M shares
Diluted Shares Outstanding		109.1M shares	108.9M shares

Balance Sheet

Concept	2018 Q4	2018 Q3	2017 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$169.0M	$172.0M	$202.0M
YoY Change	-35.5%	-14.85%	-28.87%
Cash & Equivalents	$169.2M	$172.1M	$202.2M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables	$326.0M	$336.0M	$264.0M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$495.0M	$508.0M	$466.0M
YoY Change	-5.71%	9.01%	-12.73%
LONG-TERM ASSETS
Property, Plant & Equipment	$4.830B	$4.694B	$4.814B
YoY Change	8.29%	-2.49%	6.21%
Goodwill	$82.19M	$82.19M	$82.19M
YoY Change	0.0%	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments	$1.540B	$1.498B	$1.330B
YoY Change	5.84%	12.63%	31.94%
Other Assets
YoY Change
Total Long-Term Assets	$12.61B	$12.40B	$12.28B
YoY Change	5.0%	1.03%	5.25%
TOTAL ASSETS
Total Short-Term Assets	$495.0M	$508.0M	$466.0M
Total Long-Term Assets	$12.61B	$12.40B	$12.28B
Total Assets	$13.10B	$12.91B	$12.74B
YoY Change	4.55%	1.32%	4.46%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$215.0M	$167.0M	$161.0M
YoY Change	10.82%	3.73%	20.15%
Accrued Expenses	$28.00M	$30.00M	$26.00M
YoY Change	7.69%	15.38%	-3.7%
Deferred Revenue
YoY Change
Short-Term Debt	$74.00M	$203.0M	$24.00M
YoY Change	-37.29%	745.83%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$317.0M	$400.0M	$211.0M
YoY Change	-6.21%	89.57%	31.06%
LONG-TERM LIABILITIES
Long-Term Debt	$1.990B	$1.853B	$1.772B
YoY Change	6.13%	4.57%	-3.9%
Other Long-Term Liabilities	$8.228B	$8.105B	$7.865B
YoY Change	5.46%	3.05%	6.73%
Total Long-Term Liabilities	$10.22B	$9.958B	$9.637B
YoY Change	5.59%	3.33%	4.6%
TOTAL LIABILITIES
Total Short-Term Liabilities	$317.0M	$400.0M	$211.0M
Total Long-Term Liabilities	$10.22B	$9.958B	$9.637B
Total Liabilities	$10.91B	$10.75B	$10.61B
YoY Change	4.85%	1.32%	5.04%
SHAREHOLDERS EQUITY
Retained Earnings	$543.6M	$527.8M	$470.8M
YoY Change	14.01%	12.12%	9.99%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.162B	$2.132B	$2.103B
YoY Change
Total Liabilities & Shareholders Equity	$13.10B	$12.91B	$12.74B
YoY Change	4.55%	1.32%	4.46%

Cashflow Statement

Concept	2018 Q4	2018 Q3	2017 Q3
OPERATING ACTIVITIES
Net Income	$50.05M	$66.37M	$60.54M
YoY Change	52.38%	9.62%	-52.56%
Depreciation, Depletion And Amortization	$54.40M	$53.50M	$50.00M
YoY Change	7.51%	7.0%	2.88%
Cash From Operating Activities	$241.6M	$149.4M	$146.0M
YoY Change	140.88%	2.33%	-20.44%
INVESTING ACTIVITIES
Capital Expenditures	-$156.8M	-$134.3M	-$133.1M
YoY Change	3.29%	0.9%	139.39%
Acquisitions
YoY Change
Other Investing Activities	-$93.60M	-$16.00M	$51.20M
YoY Change	-51.78%	-131.25%	-153.84%
Cash From Investing Activities	-$250.3M	-$150.4M	-$81.80M
YoY Change	-27.66%	83.86%	-45.72%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	5.800M	-81.60M	-72.40M
YoY Change	-98.1%	12.71%	1192.86%
NET CHANGE
Cash From Operating Activities	241.6M	149.4M	146.0M
Cash From Investing Activities	-250.3M	-150.4M	-81.80M
Cash From Financing Activities	5.800M	-81.60M	-72.40M
Net Change In Cash	-2.900M	-82.60M	-8.200M
YoY Change	-104.86%	907.32%	-130.15%
FREE CASH FLOW
Cash From Operating Activities	$241.6M	$149.4M	$146.0M
Capital Expenditures	-$156.8M	-$134.3M	-$133.1M
Free Cash Flow	$398.4M	$283.7M	$279.1M
YoY Change	58.03%	1.65%	16.73%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	he	Public Utility Decoupling Order Performance Incentive Mechanism Expected Savings Phase1 Percent PublicUtilityDecouplingOrderPerformanceIncentiveMechanismExpectedSavingsPhase1Percent	0.2
	he	Public Utility Decoupling Order Performance Incentive Mechanism Expected Savings Phase2 February2019 Percent PublicUtilityDecouplingOrderPerformanceIncentiveMechanismExpectedSavingsPhase2February2019Percent	0.10
	he	Public Utility Decoupling Order Performance Incentive Mechanism Expected Savings Phase2 January2019 Percent PublicUtilityDecouplingOrderPerformanceIncentiveMechanismExpectedSavingsPhase2January2019Percent	0.15
	he	Minimum Benchmark Percentageof Loanto Appraisal Ratiowhich Mortgage Insuranceis Required MinimumBenchmarkPercentageofLoantoAppraisalRatiowhichMortgageInsuranceisRequired	0.80
	he	Noncash Or Part Noncash Increases Property Plant And Equipment Contributions In Aid Of Construction NoncashOrPartNoncashIncreasesPropertyPlantAndEquipmentContributionsInAidOfConstruction	3000000	USD
	he	Noncash Or Part Noncash Increases Property Plant And Equipment Contributions In Aid Of Construction NoncashOrPartNoncashIncreasesPropertyPlantAndEquipmentContributionsInAidOfConstruction	6000000	USD
	he	Public Utility Decoupling Order Performance Incentive Mechanism Expected Savings Phase2 March2019 Percent PublicUtilityDecouplingOrderPerformanceIncentiveMechanismExpectedSavingsPhase2March2019Percent	0.05
	he	Public Utility Decoupling Order Performance Incentive Mechanism Penalty PublicUtilityDecouplingOrderPerformanceIncentiveMechanismPenalty	0	USD
	he	Increase Decrease In Pension And Other Postretirement Defined Benefit Plans Liability IncreaseDecreaseInPensionAndOtherPostretirementDefinedBenefitPlansLiability	670000	USD
	he	Increase Decrease In Pension And Other Postretirement Defined Benefit Plans Liability IncreaseDecreaseInPensionAndOtherPostretirementDefinedBenefitPlansLiability	7517000	USD
	he	Increase Decrease In Prepaid And Accrued Income Taxes And Utility Revenue Taxes IncreaseDecreaseInPrepaidAndAccruedIncomeTaxesAndUtilityRevenueTaxes	2828000	USD
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2018
	dei	Document Period End Date DocumentPeriodEndDate	2018-09-30
	dei	Document Type DocumentType	10-Q
	dei	Entity Central Index Key EntityCentralIndexKey	0000354707
CY2018Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	108879245	shares
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Registrant Name EntityRegistrantName	HAWAIIAN ELECTRIC INDUSTRIES INC
	dei	Entity Small Business EntitySmallBusiness	false
CY2017Q4	he	Debt Securities Held To Maturity Securities Less Than12 Months Number Of Issues DebtSecuritiesHeldToMaturitySecuritiesLessThan12MonthsNumberOfIssues	2	issue
CY2018Q3	he	Debt Securities Held To Maturity Securities Less Than12 Months Number Of Issues DebtSecuritiesHeldToMaturitySecuritiesLessThan12MonthsNumberOfIssues	7	issue
CY2017Q4	he	Debt Securities Held To Maturity Securities More Than12 Months Number Of Issues DebtSecuritiesHeldToMaturitySecuritiesMoreThan12MonthsNumberOfIssues	0	issue
CY2018Q3	he	Debt Securities Held To Maturity Securities More Than12 Months Number Of Issues DebtSecuritiesHeldToMaturitySecuritiesMoreThan12MonthsNumberOfIssues	0	issue
	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
	he	Defined Contribution Plan Contributions By Employer DefinedContributionPlanContributionsByEmployer	5000000	USD
	he	Defined Contribution Plan Contributions By Employer DefinedContributionPlanContributionsByEmployer	5900000	USD
	he	Effective Income Tax Rate Reconciliation Bonus Depreciation Amount EffectiveIncomeTaxRateReconciliationBonusDepreciationAmount	5300000	USD
CY2017Q4	he	Effective Income Tax Rate Reconciliation Regulatory Liabilities EffectiveIncomeTaxRateReconciliationRegulatoryLiabilities	11300000	USD
CY2017Q3	he	Financing Receivable Troubled Debt Restructuring Contract That Subsequently Defaulted Value FinancingReceivableTroubledDebtRestructuringContractThatSubsequentlyDefaultedValue	0	USD
	he	Financing Receivable Troubled Debt Restructuring Contract That Subsequently Defaulted Value FinancingReceivableTroubledDebtRestructuringContractThatSubsequentlyDefaultedValue	222000	USD
CY2018Q3	he	Financing Receivable Troubled Debt Restructuring Contract That Subsequently Defaulted Value FinancingReceivableTroubledDebtRestructuringContractThatSubsequentlyDefaultedValue	0	USD
	he	Financing Receivable Troubled Debt Restructuring Contract That Subsequently Defaulted Value FinancingReceivableTroubledDebtRestructuringContractThatSubsequentlyDefaultedValue	372000	USD
CY2017Q3	he	Financing Receivable Troubled Debt Restructuring Contracts That Subsequently Defaulted Number FinancingReceivableTroubledDebtRestructuringContractsThatSubsequentlyDefaultedNumber	0	contract
	he	Financing Receivable Troubled Debt Restructuring Contracts That Subsequently Defaulted Number FinancingReceivableTroubledDebtRestructuringContractsThatSubsequentlyDefaultedNumber	1	contract
CY2018Q3	he	Financing Receivable Troubled Debt Restructuring Contracts That Subsequently Defaulted Number FinancingReceivableTroubledDebtRestructuringContractsThatSubsequentlyDefaultedNumber	0	contract
	he	Financing Receivable Troubled Debt Restructuring Contracts That Subsequently Defaulted Number FinancingReceivableTroubledDebtRestructuringContractsThatSubsequentlyDefaultedNumber	2	contract
	he	General Payment Period GeneralPaymentPeriod	P30D
	he	Increase Decrease In Accounts Payable And Interest And Dividends Payable IncreaseDecreaseInAccountsPayableAndInterestAndDividendsPayable	18581000	USD
	he	Increase Decrease In Accounts Payable And Interest And Dividends Payable IncreaseDecreaseInAccountsPayableAndInterestAndDividendsPayable	-7122000	USD
	he	Public Utility Decoupling Order Performance Incentive Mechanism Savings Calculation Energy Price Renewable Energy Only Projects PublicUtilityDecouplingOrderPerformanceIncentiveMechanismSavingsCalculationEnergyPriceRenewableEnergyOnlyProjects	0.095
	he	Public Utility Decoupling Order Performance Incentive Mechanism Savings Calculation Energy Price Renewable Projects With Storage Capacity PublicUtilityDecouplingOrderPerformanceIncentiveMechanismSavingsCalculationEnergyPriceRenewableProjectsWithStorageCapacity	0.115
	he	Public Utility Decoupling Order Performance Incentive Mechanism Savings Calculation Incentive Cap PublicUtilityDecouplingOrderPerformanceIncentiveMechanismSavingsCalculationIncentiveCap	3000000	USD
	he	Public Utility Decoupling Order Performance Incentive Mechanism Service Reliability Maximum Penalty Pending Adjusted Amount PublicUtilityDecouplingOrderPerformanceIncentiveMechanismServiceReliabilityMaximumPenaltyPendingAdjustedAmount	6700000	USD
	he	Public Utility Decoupling Order Performance Incentive Mechanism Service Reliability Maximum Penalty Percent Of Return On Equity PublicUtilityDecouplingOrderPerformanceIncentiveMechanismServiceReliabilityMaximumPenaltyPercentOfReturnOnEquity	0.002
	he	Public Utility Decoupling Order Performance Incentive Mechanism Service Reliability Target Performance Historical Measurement Period PublicUtilityDecouplingOrderPerformanceIncentiveMechanismServiceReliabilityTargetPerformanceHistoricalMeasurementPeriod	P10Y
	he	Increase Decrease In Prepaid And Accrued Income Taxes And Utility Revenue Taxes IncreaseDecreaseInPrepaidAndAccruedIncomeTaxesAndUtilityRevenueTaxes	-32006000	USD
	he	Increase Decrease In Retail Repurchase Agreements IncreaseDecreaseInRetailRepurchaseAgreements	24469000	USD
	he	Increase Decrease In Retail Repurchase Agreements IncreaseDecreaseInRetailRepurchaseAgreements	32626000	USD
CY2017Q4	he	Interest And Dividends Payable Including Dividends On Preferred Stock Of Subsidiaries InterestAndDividendsPayableIncludingDividendsOnPreferredStockOfSubsidiaries	25837000	USD
CY2018Q3	he	Interest And Dividends Payable Including Dividends On Preferred Stock Of Subsidiaries InterestAndDividendsPayableIncludingDividendsOnPreferredStockOfSubsidiaries	30280000	USD
CY2017Q3	he	Interest Expense On Other Than Deposits And Bank Borrowings InterestExpenseOnOtherThanDepositsAndBankBorrowings	19227000	USD
	he	Interest Expense On Other Than Deposits And Bank Borrowings InterestExpenseOnOtherThanDepositsAndBankBorrowings	59235000	USD
CY2018Q3	he	Interest Expense On Other Than Deposits And Bank Borrowings InterestExpenseOnOtherThanDepositsAndBankBorrowings	22523000	USD
	he	Interest Expense On Other Than Deposits And Bank Borrowings InterestExpenseOnOtherThanDepositsAndBankBorrowings	66042000	USD
	he	Interest Paid To Non Affiliates InterestPaidToNonAffiliates	62000000	USD
	he	Interest Paid To Non Affiliates InterestPaidToNonAffiliates	67000000	USD
CY2018Q3	he	Number Of Financial Institutions NumberOfFinancialInstitutions	8	Institution
CY2017Q4	he	Other Bank Borrowings OtherBankBorrowings	190859000	USD
CY2018Q3	he	Other Bank Borrowings OtherBankBorrowings	71110000	USD
CY2017Q3	he	Other Comprehensive Income Reclassification Adjustment For Impact Of Decision And Orders Of The Puc Included In Regulatory Assets Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentForImpactOfDecisionAndOrdersOfThePUCIncludedInRegulatoryAssetsNetOfTax	3596000	USD
	he	Other Comprehensive Income Reclassification Adjustment For Impact Of Decision And Orders Of The Puc Included In Regulatory Assets Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentForImpactOfDecisionAndOrdersOfThePUCIncludedInRegulatoryAssetsNetOfTax	10790000	USD
CY2018Q3	he	Other Comprehensive Income Reclassification Adjustment For Impact Of Decision And Orders Of The Puc Included In Regulatory Assets Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentForImpactOfDecisionAndOrdersOfThePUCIncludedInRegulatoryAssetsNetOfTax	4725000	USD
	he	Other Comprehensive Income Reclassification Adjustment For Impact Of Decision And Orders Of The Puc Included In Regulatory Assets Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentForImpactOfDecisionAndOrdersOfThePUCIncludedInRegulatoryAssetsNetOfTax	14174000	USD
CY2017Q3	he	Other Comprehensive Income Reclassification Adjustment For Impact Of Decision And Orders Of The Puc Included In Regulatory Assets Tax OtherComprehensiveIncomeReclassificationAdjustmentForImpactOfDecisionAndOrdersOfThePUCIncludedInRegulatoryAssetsTax	2290000	USD
	he	Other Comprehensive Income Reclassification Adjustment For Impact Of Decision And Orders Of The Puc Included In Regulatory Assets Tax OtherComprehensiveIncomeReclassificationAdjustmentForImpactOfDecisionAndOrdersOfThePUCIncludedInRegulatoryAssetsTax	6872000	USD
CY2018Q3	he	Other Comprehensive Income Reclassification Adjustment For Impact Of Decision And Orders Of The Puc Included In Regulatory Assets Tax OtherComprehensiveIncomeReclassificationAdjustmentForImpactOfDecisionAndOrdersOfThePUCIncludedInRegulatoryAssetsTax	1639000	USD
	he	Other Comprehensive Income Reclassification Adjustment For Impact Of Decision And Orders Of The Puc Included In Regulatory Assets Tax OtherComprehensiveIncomeReclassificationAdjustmentForImpactOfDecisionAndOrdersOfThePUCIncludedInRegulatoryAssetsTax	4916000	USD
CY2017Q3	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	3942000	USD
	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	11793000	USD
CY2018Q3	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	5259000	USD
	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	15755000	USD
	he	Payments For Affordable Housing Project Investments PaymentsForAffordableHousingProjectInvestments	0	USD
	he	Payments For Affordable Housing Project Investments PaymentsForAffordableHousingProjectInvestments	7714000	USD
CY2016Q2	he	Power Purchase Agreement Termination Period PowerPurchaseAgreementTerminationPeriod	P60D
	he	Proceeds From Other Bank Borrowings ProceedsFromOtherBankBorrowings	59500000	USD
	he	Proceeds From Other Bank Borrowings ProceedsFromOtherBankBorrowings	237000000	USD
	he	Proceedsfrom Principal Repaymentson Investmentand Mortgage Related Securities Available For Sale ProceedsfromPrincipalRepaymentsonInvestmentandMortgageRelatedSecuritiesAvailableForSale	155026000	USD
	he	Proceedsfrom Principal Repaymentson Investmentand Mortgage Related Securities Available For Sale ProceedsfromPrincipalRepaymentsonInvestmentandMortgageRelatedSecuritiesAvailableForSale	168334000	USD
	he	Public Utilities Erpeam Implementation Project Costs PublicUtilitiesERPEAMImplementationProjectCosts	73300000	USD
	he	Public Utilities Erpeam Implementation Project Costs Capital Costs PublicUtilitiesERPEAMImplementationProjectCostsCapitalCosts	2600000	USD
	he	Public Utilities Erpeam Implementation Project Costs Deferred Costs PublicUtilitiesERPEAMImplementationProjectCostsDeferredCosts	57800000	USD
	he	Public Utilities Erpeam Implementation Project Costs Operations And Management PublicUtilitiesERPEAMImplementationProjectCostsOperationsAndManagement	12900000	USD
CY2018Q2	he	Public Utilities General Rate Increase Revenue Calculation Assumptions Rate Of Return PublicUtilitiesGeneralRateIncreaseRevenueCalculationAssumptionsRateOfReturn	0.0757
CY2018Q2	he	Public Utilities General Rate Increase Revenue Calculation Assumptions Rate Of Return Return On Average Common Equity PublicUtilitiesGeneralRateIncreaseRevenueCalculationAssumptionsRateOfReturnReturnOnAverageCommonEquity	0.095
CY2018Q2	he	Public Utilities Rate Increase Before Tax Act Impact Amount PublicUtilitiesRateIncreaseBeforeTaxActImpactAmount	37700000	USD
	he	Public Utilities Solar Project Cost Incurred PublicUtilitiesSolarProjectCostIncurred	28600000	USD
CY2016Q3	he	Public Utilities Solar Project Facility Energy Production PublicUtilitiesSolarProjectFacilityEnergyProduction	20	MW
CY2017Q2	he	Public Utilities Solar Project Major Project Interim Recovery Requested Amount PublicUtilitiesSolarProjectMajorProjectInterimRecoveryRequestedAmount	3400000	USD
CY2017Q2	he	Public Utilities Solar Project Maximum Energy Cost PublicUtilitiesSolarProjectMaximumEnergyCost	0.0956
CY2017Q3	he	Public Utilities Solar Project Project Cap PublicUtilitiesSolarProjectProjectCap	67000000	USD
	he	Public Utility Decoupling Order Performance Incentive Mechanism Demand Response Maximum Award PublicUtilityDecouplingOrderPerformanceIncentiveMechanismDemandResponseMaximumAward	500000	USD
CY2018Q2	he	Public Utilities Tax Act Impact On Rate Amount PublicUtilitiesTaxActImpactOnRateAmount	38300000	USD
	he	Public Utility Decoupling Order Call Center Performance Maximum Penalty Pending Adjusted Amount PublicUtilityDecouplingOrderCallCenterPerformanceMaximumPenaltyPendingAdjustedAmount	1300000	USD
	he	Public Utility Decoupling Order Call Center Performance Maximum Penalty Percent PublicUtilityDecouplingOrderCallCenterPerformanceMaximumPenaltyPercent	0.0008
	he	Public Utility Decoupling Order Performance Incentive Mechanism Call Center Performance Dead Band Percentage Above Or Below Target PublicUtilityDecouplingOrderPerformanceIncentiveMechanismCallCenterPerformanceDeadBandPercentageAboveOrBelowTarget	0.03
	he	Public Utility Decoupling Order Performance Incentive Mechanism Demand Response Award Percentage Of Annual Maintenance Costs PublicUtilityDecouplingOrderPerformanceIncentiveMechanismDemandResponseAwardPercentageOfAnnualMaintenanceCosts	0.05
	he	Public Utility Decoupling Order Performance Incentive Mechanism Demand Response Penalty PublicUtilityDecouplingOrderPerformanceIncentiveMechanismDemandResponsePenalty	0	USD
CY2018Q3	he	Public Utility Decoupling Order Performance Incentive Mechanism Savings Calculation Incentive Cap PublicUtilityDecouplingOrderPerformanceIncentiveMechanismSavingsCalculationIncentiveCap	3500000.0	USD
CY2017Q2	he	Public Utility Decoupling Order Threshold Of Capital Expenditures In Excess Of Customer Contributions For Qualification For Major Project Interim Recovery PublicUtilityDecouplingOrderThresholdOfCapitalExpendituresInExcessOfCustomerContributionsForQualificationForMajorProjectInterimRecovery	2500000.0	USD
CY2016Q3	he	Public Utility Erpeam Cost Recovery Cap PublicUtilityERPEAMCostRecoveryCap	77600000	USD
CY2016Q3	he	Public Utility Erpeam Project Service Period PublicUtilityERPEAMProjectServicePeriod	P12Y
CY2016Q3	he	Public Utility Erpeam Required Passthrough Savings PublicUtilityERPEAMRequiredPassthroughSavings	244000000	USD
CY2018Q2	he	Public Utility General Rate Increase Maximum Exposure Cap PublicUtilityGeneralRateIncreaseMaximumExposureCap	2500000	USD
CY2018Q2	he	Public Utility General Rate Increase Risk Sharing Percentage Ratepayer PublicUtilityGeneralRateIncreaseRiskSharingPercentageRatepayer	0.98
CY2018Q2	he	Public Utility General Rate Increase Risk Sharing Percentage Utility PublicUtilityGeneralRateIncreaseRiskSharingPercentageUtility	0.02
CY2016Q1	he	Public Utility Maximum Project Budget PublicUtilityMaximumProjectBudget	157300000	USD
CY2018Q3	he	Public Utility Maximum Project Budget Effective Amount Recoverable Through The Major Project Interim Recovery PublicUtilityMaximumProjectBudgetEffectiveAmountRecoverableThroughTheMajorProjectInterimRecovery	141600000	USD
CY2018Q2	he	Public Utility Project Annualized Operation And Maintenance Expense PublicUtilityProjectAnnualizedOperationAndMaintenanceExpense	1800000	USD
CY2012Q3	he	Public Utility Project Facility Capacity PublicUtilityProjectFacilityCapacity	50	MW
CY2016Q1	he	Public Utility Project Lease Term PublicUtilityProjectLeaseTerm	P35Y
CY2015Q3	he	Public Utility Project Percent Of Cost Recoverable Through Recovery Mechanisms Other Than Base Rates PublicUtilityProjectPercentOfCostRecoverableThroughRecoveryMechanismsOtherThanBaseRates	0.9
	he	Public Utility Project Total Project Cost Incurred PublicUtilityProjectTotalProjectCostIncurred	142500000	USD
	he	Repayments Of Other Bank Borrowings RepaymentsOfOtherBankBorrowings	123034000	USD
	he	Repayments Of Other Bank Borrowings RepaymentsOfOtherBankBorrowings	287000000	USD
	he	Stock Issued During Period Value Director And Officer Compensatory Plans StockIssuedDuringPeriodValueDirectorAndOfficerCompensatoryPlans	11000000	USD
	he	Stock Issued During Period Value Director And Officer Compensatory Plans StockIssuedDuringPeriodValueDirectorAndOfficerCompensatoryPlans	4000000	USD
	he	Transfer To Deposit Liabilities TransferToDepositLiabilities	0	USD
	he	Transfer To Deposit Liabilities TransferToDepositLiabilities	102000000	USD
CY2017Q4	us-gaap	Accounts Payable Current And Noncurrent AccountsPayableCurrentAndNoncurrent	193714000	USD
CY2018Q3	us-gaap	Accounts Payable Current And Noncurrent AccountsPayableCurrentAndNoncurrent	167192000	USD
CY2017Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	263209000	USD
CY2018Q3	us-gaap	Accounts Receivable Net AccountsReceivableNet	336309000	USD
CY2017Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	2553295000	USD
CY2018Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	2651109000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-41941000	USD
CY2018Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-63128000	USD
	us-gaap	Adjustment For Amortization AdjustmentForAmortization	15362000	USD
	us-gaap	Adjustment For Amortization AdjustmentForAmortization	31473000	USD
	us-gaap	Affordable Housing Program Assessments AffordableHousingProgramAssessments	10000000	USD
	us-gaap	Affordable Housing Program Assessments AffordableHousingProgramAssessments	12000000	USD
CY2017Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1100000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	4400000	USD
CY2018Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1500000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	5900000	USD
CY2017Q4	us-gaap	Assets Assets	12534160000	USD
CY2018Q3	us-gaap	Assets Assets	12911554000	USD
CY2017Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	1231000	USD
CY2018Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	362000	USD
CY2017Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	21655000	USD
CY2018Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	51889000	USD
CY2017Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1421622000	USD
CY2018Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1439098000	USD
	us-gaap	Available For Sale Debt Securities Gross Unrealized Gain AvailableForSaleDebtSecuritiesGrossUnrealizedGain	0	USD
CY2018Q3	us-gaap	Available For Sale Debt Securities Gross Unrealized Gain AvailableForSaleDebtSecuritiesGrossUnrealizedGain	0	USD
CY2018Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	82720000	USD
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	35000000	USD
CY2018Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	24896000	USD
CY2018Q3	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	1195492000	USD
CY2018Q3	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	1148690000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1401198000	USD
CY2018Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1387571000	USD
CY2018Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	80439000	USD
CY2018Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	108364000	USD
CY2018Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	106774000	USD
CY2018Q3	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	27518000	USD
CY2018Q3	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	26772000	USD
CY2018Q3	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	238881000	USD
CY2018Q3	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	243606000	USD
CY2018Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	25004000	USD
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	42000000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	278452000	USD
CY2017Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	202173000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	261881000	USD
CY2018Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	172054000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-76279000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-89827000	USD
CY2017Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2018Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.93
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.93
CY2017Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000	shares
CY2018Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000	shares
CY2017Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	108787807	shares
CY2018Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	108879245	shares
CY2017Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	108787807	shares
CY2018Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	108879245	shares
CY2017Q4	us-gaap	Common Stocks Including Additional Paid In Capital Net Of Discount CommonStocksIncludingAdditionalPaidInCapitalNetOfDiscount	1662491000	USD
CY2018Q3	us-gaap	Common Stocks Including Additional Paid In Capital Net Of Discount CommonStocksIncludingAdditionalPaidInCapitalNetOfDiscount	1667371000	USD
CY2017Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	60627000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	136836000	USD
CY2018Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	61311000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	131014000	USD
CY2017Q3	us-gaap	Costs And Expenses CostsAndExpenses	561712000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	1638015000	USD
CY2018Q3	us-gaap	Costs And Expenses CostsAndExpenses	669984000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	1850447000	USD
CY2017Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	522208000	USD
CY2018Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	759281000	USD
CY2017Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	13991000	USD
CY2018Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	36513000	USD
CY2017Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	85	issue
CY2018Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	128	issue
CY2017Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	736772000	USD
CY2018Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	563811000	USD
CY2017Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	7664000	USD
CY2018Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	15376000	USD
CY2017Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	82	issue
CY2018Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	75	issue
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	21397000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	10823000	USD
CY2017Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	388430000	USD
CY2018Q3	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	385651000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Remainder Of Fiscal Year DefinedBenefitPlanExpectedFutureBenefitPaymentsRemainderOfFiscalYear	1000000	USD
CY2018Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Remainder Of Fiscal Year DefinedBenefitPlanExpectedFutureBenefitPaymentsRemainderOfFiscalYear	2000000	USD
	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	5100000	USD
	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	4800000	USD
CY2017Q4	us-gaap	Deposits Deposits	5890597000	USD
CY2018Q3	us-gaap	Deposits Deposits	6130415000	USD
	us-gaap	Depreciation Depreciation	150123000	USD
	us-gaap	Depreciation Depreciation	159646000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	101149000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	101235000	USD
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.55
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.22
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.61
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CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.55
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CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.60
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.40
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.35
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.19
CY2017Q3	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	400000	USD
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1500000	USD
CY2018Q3	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	200000	USD
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	900000	USD
CY2017Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	9706000	USD
CY2018Q3	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	8158000	USD
CY2016Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	55533000	USD
CY2017Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	56356000	USD
CY2017Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	53047000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	53637000	USD
CY2018Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	52803000	USD
CY2018Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	54127000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	50907000	USD
CY2018Q3	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	51237000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	2730000	USD
CY2018Q3	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	2890000	USD
CY2017Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	1098000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	2754000	USD
CY2018Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	668000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	2984000	USD
CY2017Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	4897000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	12471000	USD
CY2018Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	5377000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	14831000	USD
CY2017Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	4638184000	USD
CY2018Q3	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	4713512000	USD
CY2017Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	33393000	USD
CY2018Q3	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	41160000	USD
CY2017	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	20814000	USD
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	26224000	USD
CY2017Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	0	USD
CY2018Q3	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	0	USD
CY2017Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	4647974000	USD
CY2018Q3	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	4730025000	USD
CY2017Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	23591000	USD
CY2018Q3	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	27917000	USD
CY2017Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	23603000	USD
CY2018Q3	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	24647000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	82190000	USD
CY2018Q3	us-gaap	Goodwill Goodwill	82190000	USD
CY2017Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	44515000	USD
CY2018Q3	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	102498000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	1000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	0	USD
CY2017Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	104000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	2569000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	0	USD
CY2018Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	0	USD
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	104000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	2569000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	35744000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	99929000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	0	USD
CY2018Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	0	USD
CY2018Q3	us-gaap	Held To Maturity Securities Debt Maturities Single Maturity Date Amortized Cost Basis HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	102498000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Debt Maturities Single Maturity Date Fair Value HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue	99929000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	44412000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	99929000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	34533000	USD
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	37404000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	40641000	USD
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	37273000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	620000	USD
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	1789000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	509000	USD
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	1167000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	33393000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	41160000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	2730000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	2890000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	35615000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	43480000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	14585000	USD
	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	15700000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	16895000	USD
	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	15357000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	204000	USD
	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	482000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	274000	USD
	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	473000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	14072000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	17085000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	16041000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	19117000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	19948000	USD
	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	21704000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	23746000	USD
	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	21916000	USD
CY2017Q3	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	416000	USD
	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	1307000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	235000	USD
	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	694000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	19321000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	24075000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	19574000	USD
CY2018Q3	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	24363000	USD
CY2017Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	95139000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	206347000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	77233000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	190091000	USD
CY2017Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34595000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	72003000	USD
CY2018Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10862000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	36473000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	32000000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	50000000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	203397000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	137443000	USD
	us-gaap	Increase Decrease In Fuel Inventories IncreaseDecreaseInFuelInventories	-6177000	USD
	us-gaap	Increase Decrease In Fuel Inventories IncreaseDecreaseInFuelInventories	5060000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	22311000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-15548000	USD
	us-gaap	Increase Decrease In Other Regulatory Assets IncreaseDecreaseInOtherRegulatoryAssets	-3922000	USD
	us-gaap	Increase Decrease In Other Regulatory Assets IncreaseDecreaseInOtherRegulatoryAssets	6474000	USD
	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	26250000	USD
	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	79128000	USD
CY2017Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	79000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	172000	shares
CY2018Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	176000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	243000	shares
CY2017Q3	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	1339000	USD
	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	3371000	USD
CY2018Q3	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	1006000	USD
	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	3815000	USD
CY2017Q4	us-gaap	Liabilities Liabilities	10402481000	USD
CY2018Q3	us-gaap	Liabilities Liabilities	10745216000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	12534160000	USD
CY2018Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	12911554000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	53637000	USD
CY2018Q3	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	54127000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	4671577000	USD
CY2018Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	4754672000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	4617131000	USD
CY2018Q3	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	4700232000	USD
CY2017Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	11250000	USD
CY2018Q3	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	1036000	USD
CY2017Q4	us-gaap	Long Term Debt LongTermDebt	1683797000	USD
CY2018Q3	us-gaap	Long Term Debt LongTermDebt	1782242000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	72937000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	194255000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-469330000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-541761000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	320114000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	257679000	USD
CY2017Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	60073000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	132927000	USD
CY2018Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	65900000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	152201000	USD
CY2017Q3	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	1928000	USD
	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	5710000	USD
CY2018Q3	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	1276000	USD
	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	4673000	USD
CY2017Q3	us-gaap	Noncontrolling Interest In Net Income Loss Preferred Unit Holders Redeemable NoncontrollingInterestInNetIncomeLossPreferredUnitHoldersRedeemable	471000	USD
	us-gaap	Noncontrolling Interest In Net Income Loss Preferred Unit Holders Redeemable NoncontrollingInterestInNetIncomeLossPreferredUnitHoldersRedeemable	1417000	USD
CY2018Q3	us-gaap	Noncontrolling Interest In Net Income Loss Preferred Unit Holders Redeemable NoncontrollingInterestInNetIncomeLossPreferredUnitHoldersRedeemable	471000	USD
	us-gaap	Noncontrolling Interest In Net Income Loss Preferred Unit Holders Redeemable NoncontrollingInterestInNetIncomeLossPreferredUnitHoldersRedeemable	1417000	USD
CY2017Q4	us-gaap	Notes Receivable Net NotesReceivableNet	4671577000	USD
CY2018Q3	us-gaap	Notes Receivable Net NotesReceivableNet	4754672000	USD
CY2017Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	111473000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	259013000	USD
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	98064000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	248752000	USD
CY2017Q4	us-gaap	Other Assets OtherAssets	513535000	USD
CY2018Q3	us-gaap	Other Assets OtherAssets	596481000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	554000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	3909000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-4589000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-21187000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-454000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	0	USD
CY2017Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	-289000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	0	USD
CY2017Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	2516000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	7526000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	1832000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	5486000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	208000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	2452000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-5123000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-22768000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-137000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-1619000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	1876000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	8335000	USD
CY2017Q4	us-gaap	Other Liabilities OtherLiabilities	521018000	USD
CY2018Q3	us-gaap	Other Liabilities OtherLiabilities	545862000	USD
	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-1350000	USD
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CY2017Q4	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	117945000	USD
CY2018Q3	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	203359000	USD
	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	105816000	USD
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	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	101149000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	101235000	USD
	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	1417000	USD
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	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	3796000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	996000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	369467000	USD
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	190411000	USD
	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	2868000	USD
	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	9933000	USD
	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	0	USD
	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	62096000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	343375000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	404984000	USD
	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	25000000	USD
	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	43000000	USD
CY2017Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	509514000	USD
CY2018Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	496753000	USD
CY2017Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2018Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2017Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2018Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2017Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2018Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
	us-gaap	Proceeds From Contribution In Aid Of Construction ProceedsFromContributionInAidOfConstruction	40603000	USD
	us-gaap	Proceeds From Contribution In Aid Of Construction ProceedsFromContributionInAidOfConstruction	24361000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	265000000	USD
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	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-5668000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	24498000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	85369000	USD
	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	0	USD
	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	4007000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	USD
CY2018Q3	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	USD
	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	4380000	USD
	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	11480000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	119731000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	109335000	USD
	us-gaap	Proceeds From Sale Of Loans Receivable ProceedsFromSaleOfLoansReceivable	31427000	USD
	us-gaap	Proceeds From Sale Of Loans Receivable ProceedsFromSaleOfLoansReceivable	7149000	USD
	us-gaap	Proceeds From Sale Of Wholly Owned Real Estate And Real Estate Acquired In Settlement Of Loans ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans	411000	USD
	us-gaap	Proceeds From Sale Of Wholly Owned Real Estate And Real Estate Acquired In Settlement Of Loans ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans	589000	USD
CY2017Q3	us-gaap	Profit Loss ProfitLoss	60544000	USD
	us-gaap	Profit Loss ProfitLoss	134344000	USD
CY2018Q3	us-gaap	Profit Loss ProfitLoss	66371000	USD
	us-gaap	Profit Loss ProfitLoss	153618000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	4460248000	USD
CY2018Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	4694101000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	7231000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	12337000	USD
CY2017Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	490000	USD
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	7231000	USD
CY2018Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	6033000	USD
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	12337000	USD
CY2017Q3	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	3482000	USD
	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	8908000	USD
CY2018Q3	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	1962000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	476836000	USD
CY2018Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	527802000	USD
CY2017Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	673185000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1897028000	USD
CY2018Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	768048000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2099199000	USD
CY2018Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	710168000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	1907220000	USD
CY2018Q3	us-gaap	Revenues Revenues	768048000	USD
	us-gaap	Revenues Revenues	2099199000	USD
CY2017Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	141000000	USD
CY2018Q3	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	71000000	USD
CY2017Q4	us-gaap	Securities Sold Under Agreements To Repurchase Asset SecuritiesSoldUnderAgreementsToRepurchaseAsset	0	USD
CY2018Q3	us-gaap	Securities Sold Under Agreements To Repurchase Asset SecuritiesSoldUnderAgreementsToRepurchaseAsset	0	USD
CY2017Q4	us-gaap	Securities Sold Under Agreements To Repurchase Gross SecuritiesSoldUnderAgreementsToRepurchaseGross	141000000	USD
	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	8239000	USD
CY2016Q3	us-gaap	Public Utilities Allowance For Funds Used During Construction Rate PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate	0.0175
CY2018Q1	us-gaap	Public Utilities Interim Rate Increase Decrease Amount PublicUtilitiesInterimRateIncreaseDecreaseAmount	36000000	USD
CY2017Q3	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-346000	USD
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CY2017Q4	us-gaap	Regulatory Assets RegulatoryAssets	869297000	USD
CY2018Q3	us-gaap	Regulatory Assets RegulatoryAssets	830924000	USD
CY2017Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	880770000	USD
CY2018Q3	us-gaap	Regulatory Liabilities RegulatoryLiabilities	932352000	USD
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	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1867000	USD
CY2018Q3	us-gaap	Securities Sold Under Agreements To Repurchase Gross SecuritiesSoldUnderAgreementsToRepurchaseGross	71000000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	4383000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	5891000	USD
	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	582000	USD
	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	4880000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	2066753000	USD
CY2017Q3	us-gaap	Stockholders Equity StockholdersEquity	2103022000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	2097386000	USD
CY2018Q3	us-gaap	Stockholders Equity StockholdersEquity	2132045000	USD
CY2017Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	34293000	USD
CY2018Q3	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	34293000	USD
CY2017Q4	us-gaap	Trading Securities TradingSecurities	1401198000	USD
CY2018Q3	us-gaap	Trading Securities TradingSecurities	1387571000	USD
	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	41000000	USD
	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	1000000	USD
CY2017Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	-809000	USD
CY2018Q3	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	-313000	USD
	us-gaap	Utilities Operating Expense Purchased Power UtilitiesOperatingExpensePurchasedPower	441000000	USD
CY2017Q3	us-gaap	Utilities Operating Expense Purchased Power UtilitiesOperatingExpensePurchasedPower	161000000	USD
CY2018Q3	us-gaap	Utilities Operating Expense Purchased Power UtilitiesOperatingExpensePurchasedPower	177000000	USD
	us-gaap	Utilities Operating Expense Purchased Power UtilitiesOperatingExpensePurchasedPower	478000000	USD
CY2017Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	108865000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	108909000	shares
CY2018Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	109055000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	109090000	shares
CY2017Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	108786000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	108737000	shares
CY2018Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	108879000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	108847000	shares

Files In Submission

Name	View Source	Status
0000354707-18-000071-index-headers.html	Edgar Link	pending
0000354707-18-000071-index.html	Edgar Link	pending
0000354707-18-000071.txt	Edgar Link	pending
0000354707-18-000071-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
he-09302018x10q.htm	Edgar Link	pending
he-20180930.xml	Edgar Link	completed
he-20180930.xsd	Edgar Link	pending
he-20180930_cal.xml	Edgar Link	unprocessable
he-20180930_def.xml	Edgar Link	unprocessable
he-20180930_lab.xml	Edgar Link	unprocessable
he-20180930_pre.xml	Edgar Link	unprocessable
heco-09302018xex313.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$HE
HAWAIIAN ELECTRIC INDUSTRIES INC Stock $he

2018 Q4 Form 10-Q Financial Statement

#000035470718000071 Filed on November 07, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HE HAWAIIAN ELECTRIC INDUSTRIES INC Stock $he

2018 Q4 Form 10-Q Financial Statement

#000035470718000071 Filed on November 07, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HE
HAWAIIAN ELECTRIC INDUSTRIES INC Stock $he