$HE
HAWAIIAN ELECTRIC INDUSTRIES INC Stock $he

$he Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000035470722000049 Filed on February 25, 2022

Income Statement

Concept	2021 Q4	2021	2020 Q4
Revenue	$770.3M	$2.850B	$652.2M
YoY Change	18.1%	10.49%	-10.16%
Cost Of Revenue	$681.4M	$2.464B	$571.5M
YoY Change	19.23%	8.64%	-6.98%
Gross Profit	$88.86M	$386.1M	$80.70M
YoY Change	10.12%	23.94%	-27.69%
Gross Profit Margin	11.54%	13.54%	12.37%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$61.77M	$278.7M	$59.40M
YoY Change	3.99%	-4.15%	3.13%
% of Gross Profit	69.51%	72.19%	73.61%
Operating Expenses	$0.00	$0.00	$0.00
YoY Change			-100.0%
Operating Profit	$88.86M	$386.1M	$80.67M
YoY Change	10.15%	23.94%	-19.96%
Interest Expense	-$20.43M	$99.40M	-$19.30M
YoY Change	5.85%	-0.41%	6.04%
% of Operating Profit	-22.99%	25.75%	-23.92%
Other Income/Expense, Net	$1.139M	$5.848M	-$200.0K
YoY Change	-669.5%	-282.75%	-66.67%
Pretax Income	$69.57M	$310.9M	$61.20M
YoY Change	13.68%	29.19%	-25.37%
Income Tax	$14.58M	$62.81M	$10.20M
% Of Pretax Income	20.95%	20.2%	16.67%
Net Earnings	$54.99M	$248.1M	$50.96M
YoY Change	7.92%	24.21%	-23.64%
Net Earnings / Revenue	7.14%	8.7%	7.81%
Basic Earnings Per Share		$2.25	$0.46
Diluted Earnings Per Share	$502.0K	$2.25	$0.46
COMMON SHARES
Basic Shares Outstanding	109.3M shares	109.3M shares	109.2M shares
Diluted Shares Outstanding		109.6M shares

Balance Sheet

Concept	2021 Q4	2021	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$305.6M	$305.6M	$341.0M
YoY Change	-10.4%	-10.4%	73.1%
Cash & Equivalents	$305.6M	$305.6M	$341.4M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables	$344.2M	$344.2M
Other Receivables	$0.00	$0.00
Total Short-Term Assets	$649.8M	$649.8M	$341.0M
YoY Change	90.55%	90.55%	-31.53%
LONG-TERM ASSETS
Property, Plant & Equipment	$5.392B	$5.514B	$5.266B
YoY Change	2.4%	1.76%	3.06%
Goodwill	$82.19M		$82.19M
YoY Change	0.0%		0.0%
Intangibles
YoY Change
Long-Term Investments	$3.107B	$3.107B	$2.487B
YoY Change	24.93%	24.93%	80.09%
Other Assets	$5.911M	$5.911M	$18.00M
YoY Change	-67.16%	-67.16%	-41.94%
Total Long-Term Assets	$15.17B	$15.17B	$14.66B
YoY Change	3.48%	3.48%	10.69%
TOTAL ASSETS
Total Short-Term Assets	$649.8M	$649.8M	$341.0M
Total Long-Term Assets	$15.17B	$15.17B	$14.66B
Total Assets	$15.82B	$15.82B	$15.00B
YoY Change	5.46%	5.46%	9.16%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$205.5M	$205.5M	$182.0M
YoY Change	12.94%	12.94%	-17.65%
Accrued Expenses	$156.6M	$156.6M	$184.0M
YoY Change	-14.86%	-14.86%	-18.22%
Deferred Revenue
YoY Change
Short-Term Debt	$54.00M	$54.00M	$129.0M
YoY Change	-58.14%	-58.14%	-30.65%
Long-Term Debt Due		$172.0M
YoY Change		18.62%
Total Short-Term Liabilities	$416.2M	$588.2M	$495.0M
YoY Change	-15.92%	-8.1%	-21.68%
LONG-TERM LIABILITIES
Long-Term Debt	$2.410B	$2.238B	$2.209B
YoY Change	9.11%	8.44%	6.25%
Other Long-Term Liabilities	$10.19B	$10.19B	$9.533B
YoY Change	6.85%	6.85%	14.29%
Total Long-Term Liabilities	$12.60B	$12.42B	$11.74B
YoY Change	7.28%	7.14%	12.69%
TOTAL LIABILITIES
Total Short-Term Liabilities	$416.2M	$588.2M	$495.0M
Total Long-Term Liabilities	$12.60B	$12.42B	$11.74B
Total Liabilities	$13.40B	$13.40B	$12.63B
YoY Change	6.06%	6.06%	10.51%
SHAREHOLDERS EQUITY
Retained Earnings	$757.9M		$660.4M
YoY Change	14.77%		6.17%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.391B	$2.425B	$2.338B
YoY Change
Total Liabilities & Shareholders Equity	$15.82B	$15.82B	$15.00B
YoY Change	5.46%	5.46%	9.16%

Cashflow Statement

Concept	2021 Q4	2021	2020 Q4
OPERATING ACTIVITIES
Net Income	$54.99M	$248.1M	$50.96M
YoY Change	7.92%	24.21%	-23.64%
Depreciation, Depletion And Amortization	$61.77M	$278.7M	$59.40M
YoY Change	3.99%	-4.15%	3.13%
Cash From Operating Activities	$108.5M	$375.7M	$117.1M
YoY Change	-7.37%	-12.51%	-31.56%
INVESTING ACTIVITIES
Capital Expenditures	-$95.27M	$314.5M	-$87.70M
YoY Change	8.63%	-18.07%	-29.95%
Acquisitions		$0.00
YoY Change
Other Investing Activities	-$99.48M	-$27.00K	-$181.3M
YoY Change	-45.13%	-99.21%	321.63%
Cash From Investing Activities	-$194.8M	-$1.180B	-$269.0M
YoY Change	-27.6%	-16.56%	59.83%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net		$82.26M
YoY Change		-54.04%
Cash From Financing Activities	160.4M	$756.4M	295.8M
YoY Change	-45.77%	-32.19%	517.54%
NET CHANGE
Cash From Operating Activities	108.5M	$375.7M	117.1M
Cash From Investing Activities	-194.8M	-$1.180B	-269.0M
Cash From Financing Activities	160.4M	$756.4M	295.8M
Net Change In Cash	74.13M	-$47.52M	143.9M
YoY Change	-48.49%	-136.19%	183.83%
FREE CASH FLOW
Cash From Operating Activities	$108.5M	$375.7M	$117.1M
Capital Expenditures	-$95.27M	$314.5M	-$87.70M
Free Cash Flow	$203.7M	$61.15M	$204.8M
YoY Change	-0.52%	34.36%	-30.88%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0000354707
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2018	us-gaap	Accounting Standards Update Extensible List AccountingStandardsUpdateExtensibleList	http://fasb.org/us-gaap/2021-01-31#AccountingStandardsUpdate201613Member
CY2019	us-gaap	Accounting Standards Update Extensible List AccountingStandardsUpdateExtensibleList	http://fasb.org/us-gaap/2021-01-31#AccountingStandardsUpdate201613Member
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2021	us-gaap	Multiemployer Plan Pension Insignificant Employees Covered By Collective Bargaining Arrangement To All Participants Percentage MultiemployerPlanPensionInsignificantEmployeesCoveredByCollectiveBargainingArrangementToAllParticipantsPercentage	0.50
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021	dei	Entity Registrant Name EntityRegistrantName	Hawaiian Electric Industries, Inc.
CY2021	dei	Entity File Number EntityFileNumber	1-8503
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	99-0208097
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	HI
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	1001 Bishop Street, Suite 2900
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Honolulu
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	HI
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	96813
CY2021	dei	City Area Code CityAreaCode	808
CY2021	dei	Local Phone Number LocalPhoneNumber	543-5662
CY2021	dei	Security12b Title Security12bTitle	Common Stock, Without Par Value
CY2021	dei	Trading Symbol TradingSymbol	HE
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	false
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2021Q2	dei	Entity Public Float EntityPublicFloat	4621670518	USD
CY2022Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	109311785	shares
CY2021	dei	Auditor Firm AuditorFirmId	34
CY2021	dei	Auditor Name AuditorName	Deloitte & Touche LLP
CY2021	dei	Auditor Location AuditorLocation	Honolulu, Hawaii
CY2021	us-gaap	Revenues Revenues	2850379000	USD
CY2020	us-gaap	Revenues Revenues	2579775000	USD
CY2019	us-gaap	Revenues Revenues	2873948000	USD
CY2021	us-gaap	Costs And Expenses CostsAndExpenses	2464313000	USD
CY2020	us-gaap	Costs And Expenses CostsAndExpenses	2268282000	USD
CY2019	us-gaap	Costs And Expenses CostsAndExpenses	2525927000	USD
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	386066000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	311493000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	348021000	USD
CY2021	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-5848000	USD
CY2020	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	3210000	USD
CY2019	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	2806000	USD
CY2021	he	Interest Expense On Other Than Deposits And Bank Borrowings InterestExpenseOnOtherThanDepositsAndBankBorrowings	94363000	USD
CY2020	he	Interest Expense On Other Than Deposits And Bank Borrowings InterestExpenseOnOtherThanDepositsAndBankBorrowings	88694000	USD
CY2019	he	Interest Expense On Other Than Deposits And Bank Borrowings InterestExpenseOnOtherThanDepositsAndBankBorrowings	90899000	USD
CY2021	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	3250000	USD
CY2020	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	2992000	USD
CY2019	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	4453000	USD
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	9534000	USD
CY2020	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	8768000	USD
CY2019	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	11987000	USD
CY2021	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	528000	USD
CY2020	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	9275000	USD
CY2019	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	653000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	310863000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	240624000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	271409000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	62807000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	40910000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	51637000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	248056000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	199714000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	219772000	USD
CY2021	us-gaap	Noncontrolling Interest In Net Income Loss Preferred Unit Holders Redeemable NoncontrollingInterestInNetIncomeLossPreferredUnitHoldersRedeemable	1890000	USD
CY2020	us-gaap	Noncontrolling Interest In Net Income Loss Preferred Unit Holders Redeemable NoncontrollingInterestInNetIncomeLossPreferredUnitHoldersRedeemable	1890000	USD
CY2019	us-gaap	Noncontrolling Interest In Net Income Loss Preferred Unit Holders Redeemable NoncontrollingInterestInNetIncomeLossPreferredUnitHoldersRedeemable	1890000	USD
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	246166000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	197824000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	217882000	USD
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.25
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.81
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.00
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.25
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.81
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.99
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	109282000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	109140000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	108949000	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	298000	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	216000	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	458000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	109580000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	109356000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	109407000	shares
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	246166000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	197824000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	217882000	USD
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-18903000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	7008000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	10024000	USD
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-51636000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	19143000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	27382000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	142000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	599000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	175000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	387000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	1638000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	478000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	-108000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	-607000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	-409000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-312000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-1750000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-1177000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	-13000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-37000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	0	USD
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	53068000	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-20907000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	3892000	USD
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	153121000	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-60529000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	10914000	USD
CY2021	he	Other Comprehensive Income Loss Defined Benefit Plan Prior Service Cost Credit Recognized In Net Periodic Benefit Cost Reclassification Adjustment From Aoci Tax OtherComprehensiveIncomeLossDefinedBenefitPlanPriorServiceCostCreditRecognizedInNetPeriodicBenefitCostReclassificationAdjustmentFromAOCITax	6665000	USD
CY2020	he	Other Comprehensive Income Loss Defined Benefit Plan Prior Service Cost Credit Recognized In Net Periodic Benefit Cost Reclassification Adjustment From Aoci Tax OtherComprehensiveIncomeLossDefinedBenefitPlanPriorServiceCostCreditRecognizedInNetPeriodicBenefitCostReclassificationAdjustmentFromAOCITax	8247000	USD
CY2019	he	Other Comprehensive Income Loss Defined Benefit Plan Prior Service Cost Credit Recognized In Net Periodic Benefit Cost Reclassification Adjustment From Aoci Tax OtherComprehensiveIncomeLossDefinedBenefitPlanPriorServiceCostCreditRecognizedInNetPeriodicBenefitCostReclassificationAdjustmentFromAOCITax	3512000	USD
CY2021	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	19253000	USD
CY2020	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	23689000	USD
CY2019	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	10107000	USD
CY2021	he	Other Comprehensive Income Reclassification Adjustment For Impact Of Decision And Orders Of The Puc Included In Regulatory Assets Tax OtherComprehensiveIncomeReclassificationAdjustmentForImpactOfDecisionAndOrdersOfThePUCIncludedInRegulatoryAssetsTax	-59429000	USD
CY2020	he	Other Comprehensive Income Reclassification Adjustment For Impact Of Decision And Orders Of The Puc Included In Regulatory Assets Tax OtherComprehensiveIncomeReclassificationAdjustmentForImpactOfDecisionAndOrdersOfThePUCIncludedInRegulatoryAssetsTax	13825000	USD
CY2019	he	Other Comprehensive Income Reclassification Adjustment For Impact Of Decision And Orders Of The Puc Included In Regulatory Assets Tax OtherComprehensiveIncomeReclassificationAdjustmentForImpactOfDecisionAndOrdersOfThePUCIncludedInRegulatoryAssetsTax	-5610000	USD
CY2021	he	Other Comprehensive Income Reclassification Adjustment For Impact Of Decision And Orders Of The Puc Included In Regulatory Assets Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentForImpactOfDecisionAndOrdersOfThePUCIncludedInRegulatoryAssetsNetOfTax	171345000	USD
CY2020	he	Other Comprehensive Income Reclassification Adjustment For Impact Of Decision And Orders Of The Puc Included In Regulatory Assets Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentForImpactOfDecisionAndOrdersOfThePUCIncludedInRegulatoryAssetsNetOfTax	-39860000	USD
CY2019	he	Other Comprehensive Income Reclassification Adjustment For Impact Of Decision And Orders Of The Puc Included In Regulatory Assets Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentForImpactOfDecisionAndOrdersOfThePUCIncludedInRegulatoryAssetsNetOfTax	16177000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-51269000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	18775000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	30571000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	194897000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	216599000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	248453000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	305551000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	341421000	USD
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	5911000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	17558000	USD
CY2021Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	344213000	USD
CY2020Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	281216000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	2574618000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1970417000	USD
CY2021Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	522270000	USD
CY2020Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	226947000	USD
CY2021Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	10000000	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	8680000	USD
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	5139984000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	5232642000	USD
CY2021Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	10404000	USD
CY2020Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	28275000	USD
CY2021Q4	us-gaap	Land Land	102910000	USD
CY2020Q4	us-gaap	Land Land	103428000	USD
CY2021Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	8085793000	USD
CY2020Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	7851185000	USD
CY2021Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	231495000	USD
CY2020Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	214266000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	8420198000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	8168879000	USD
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	3028130000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	5392068000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	2903144000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	5265735000	USD
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	122416000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	153069000	USD
CY2021Q4	us-gaap	Regulatory Assets RegulatoryAssets	565543000	USD
CY2020Q4	us-gaap	Regulatory Assets RegulatoryAssets	766708000	USD
CY2021Q4	us-gaap	Other Assets OtherAssets	747469000	USD
CY2020Q4	us-gaap	Other Assets OtherAssets	629149000	USD
CY2021Q4	us-gaap	Goodwill Goodwill	82190000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	82190000	USD
CY2021Q4	us-gaap	Assets Assets	15822637000	USD
CY2020Q4	us-gaap	Assets Assets	15004007000	USD
CY2021Q4	us-gaap	Accounts Payable Current And Noncurrent AccountsPayableCurrentAndNoncurrent	205544000	USD
CY2020Q4	us-gaap	Accounts Payable Current And Noncurrent AccountsPayableCurrentAndNoncurrent	182347000	USD
CY2021Q4	he	Interest And Dividends Payable Including Dividends On Preferred Stock Of Subsidiaries InterestAndDividendsPayableIncludingDividendsOnPreferredStockOfSubsidiaries	19889000	USD
CY2020Q4	he	Interest And Dividends Payable Including Dividends On Preferred Stock Of Subsidiaries InterestAndDividendsPayableIncludingDividendsOnPreferredStockOfSubsidiaries	23547000	USD
CY2021Q4	us-gaap	Deposits Deposits	8172212000	USD
CY2020Q4	us-gaap	Deposits Deposits	7386957000	USD
CY2021Q4	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	53998000	USD
CY2020Q4	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	129379000	USD
CY2021Q4	he	Other Bank Borrowings OtherBankBorrowings	88305000	USD
CY2020Q4	he	Other Bank Borrowings OtherBankBorrowings	89670000	USD
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	2321937000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	2119129000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	384760000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	395089000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	136760000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	160432000	USD
CY2021Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	996768000	USD
CY2020Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	959786000	USD
CY2021Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	348072000	USD
CY2020Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	567438000	USD
CY2021Q4	us-gaap	Other Liabilities OtherLiabilities	669215000	USD
CY2020Q4	us-gaap	Other Liabilities OtherLiabilities	618438000	USD
CY2021Q4	us-gaap	Liabilities Liabilities	13397460000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	12632212000	USD
CY2021Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	34293000	USD
CY2020Q4	us-gaap	Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests	34293000	USD
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2021Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2021Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000	shares
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000	shares
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	109311785	shares
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	109311785	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	109181124	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	109181124	shares
CY2021Q4	us-gaap	Common Stocks Including Additional Paid In Capital Net Of Discount CommonStocksIncludingAdditionalPaidInCapitalNetOfDiscount	1685496000	USD
CY2020Q4	us-gaap	Common Stocks Including Additional Paid In Capital Net Of Discount CommonStocksIncludingAdditionalPaidInCapitalNetOfDiscount	1678368000	USD
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	757921000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	660398000	USD
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-32037000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	19986000	USD
CY2021Q4	us-gaap	Aoci Derivative Qualifying As Hedge Excluded Component After Tax AociDerivativeQualifyingAsHedgeExcludedComponentAfterTax	-3638000	USD
CY2020Q4	us-gaap	Aoci Derivative Qualifying As Hedge Excluded Component After Tax AociDerivativeQualifyingAsHedgeExcludedComponentAfterTax	-3363000	USD
CY2021Q4	he	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax Adjusted For Regulatory Impacts AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTaxAdjustedForRegulatoryImpacts	16858000	USD
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-52533000	USD
CY2020Q4	he	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax Adjusted For Regulatory Impacts AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTaxAdjustedForRegulatoryImpacts	17887000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1264000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	2390884000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	2337502000	USD
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	15822637000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	15004007000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	2162280000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	217882000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	30571000	USD
CY2019	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	3092000	USD
CY2019	he	Stock Issued During Period Value Expenses And Other Net StockIssuedDuringPeriodValueExpensesAndOtherNet	5898000	USD
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.28
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	139463000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	2280260000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	197824000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	18775000	USD
CY2020	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	3973000	USD
CY2020	he	Stock Issued During Period Value Expenses And Other Net StockIssuedDuringPeriodValueExpensesAndOtherNet	-3862000	USD
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.32
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	144096000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	2337502000	USD
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	246166000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-51269000	USD
CY2021	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	5027000	USD
CY2021	he	Stock Issued During Period Value Expenses And Other Net StockIssuedDuringPeriodValueExpensesAndOtherNet	2101000	USD
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.36
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	148643000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	2390884000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	248056000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	199714000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	219772000	USD
CY2021	us-gaap	Depreciation Depreciation	246158000	USD
CY2020	us-gaap	Depreciation Depreciation	238114000	USD
CY2019	us-gaap	Depreciation Depreciation	229858000	USD
CY2021	us-gaap	Adjustment For Amortization AdjustmentForAmortization	32544000	USD
CY2020	us-gaap	Adjustment For Amortization AdjustmentForAmortization	52664000	USD
CY2019	us-gaap	Adjustment For Amortization AdjustmentForAmortization	48255000	USD
CY2021	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-25825000	USD
CY2020	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	50811000	USD
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	23480000	USD
CY2021	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	340986000	USD
CY2020	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	564525000	USD
CY2019	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	285042000	USD
CY2021	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	364848000	USD
CY2020	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	567652000	USD
CY2019	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	277119000	USD
CY2021	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	0	USD
CY2020	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	0	USD
CY2019	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	10762000	USD
CY2021	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	528000	USD
CY2020	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	9275000	USD
CY2019	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	653000	USD
CY2021	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	9305000	USD
CY2020	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	23734000	USD
CY2019	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	4943000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-5398000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1706000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-15085000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	9135000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	5810000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	9986000	USD
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	9534000	USD
CY2020	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	8768000	USD
CY2019	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	11987000	USD
CY2021	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-7060000	USD
CY2020	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	1366000	USD
CY2019	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	18568000	USD
CY2021	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	73811000	USD
CY2020	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-2533000	USD
CY2019	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-23933000	USD
CY2021	us-gaap	Increase Decrease In Fuel Inventories IncreaseDecreaseInFuelInventories	45819000	USD
CY2020	us-gaap	Increase Decrease In Fuel Inventories IncreaseDecreaseInFuelInventories	-34202000	USD
CY2019	us-gaap	Increase Decrease In Fuel Inventories IncreaseDecreaseInFuelInventories	11493000	USD
CY2021	us-gaap	Increase Decrease In Other Regulatory Assets IncreaseDecreaseInOtherRegulatoryAssets	13874000	USD
CY2020	us-gaap	Increase Decrease In Other Regulatory Assets IncreaseDecreaseInOtherRegulatoryAssets	-1007000	USD
CY2019	us-gaap	Increase Decrease In Other Regulatory Assets IncreaseDecreaseInOtherRegulatoryAssets	-71262000	USD
CY2021	us-gaap	Increase Decrease In Regulatory Liabilities IncreaseDecreaseInRegulatoryLiabilities	15358000	USD
CY2020	us-gaap	Increase Decrease In Regulatory Liabilities IncreaseDecreaseInRegulatoryLiabilities	-16562000	USD
CY2019	us-gaap	Increase Decrease In Regulatory Liabilities IncreaseDecreaseInRegulatoryLiabilities	1953000	USD
CY2021	he	Increase Decrease In Accounts Payable And Interest And Dividends Payable IncreaseDecreaseInAccountsPayableAndInterestAndDividendsPayable	9925000	USD
CY2020	he	Increase Decrease In Accounts Payable And Interest And Dividends Payable IncreaseDecreaseInAccountsPayableAndInterestAndDividendsPayable	-20068000	USD
CY2019	he	Increase Decrease In Accounts Payable And Interest And Dividends Payable IncreaseDecreaseInAccountsPayableAndInterestAndDividendsPayable	-3054000	USD
CY2021	he	Increase Decrease In Prepaid And Accrued Income Taxes Tax Credits And Utility Revenue Taxes IncreaseDecreaseInPrepaidAndAccruedIncomeTaxesTaxCreditsAndUtilityRevenueTaxes	41331000	USD
CY2020	he	Increase Decrease In Prepaid And Accrued Income Taxes Tax Credits And Utility Revenue Taxes IncreaseDecreaseInPrepaidAndAccruedIncomeTaxesTaxCreditsAndUtilityRevenueTaxes	-35610000	USD
CY2019	he	Increase Decrease In Prepaid And Accrued Income Taxes Tax Credits And Utility Revenue Taxes IncreaseDecreaseInPrepaidAndAccruedIncomeTaxesTaxCreditsAndUtilityRevenueTaxes	-27538000	USD
CY2021	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	-6660000	USD
CY2020	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	-2029000	USD
CY2019	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	-4482000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	52882000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	42189000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	36677000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	375673000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	429407000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	512470000	USD
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	1464644000	USD
CY2020	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	1361594000	USD
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	108088000	USD
CY2021	he	Proceeds From Principal Repayments On Investment And Mortgage Related Securities ProceedsFromPrincipalRepaymentsOnInvestmentAndMortgageRelatedSecurities	583238000	USD
CY2020	he	Proceeds From Principal Repayments On Investment And Mortgage Related Securities ProceedsFromPrincipalRepaymentsOnInvestmentAndMortgageRelatedSecurities	478351000	USD
CY2019	he	Proceeds From Principal Repayments On Investment And Mortgage Related Securities ProceedsFromPrincipalRepaymentsOnInvestmentAndMortgageRelatedSecurities	272949000	USD
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	197354000	USD
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	169157000	USD
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	19810000	USD
CY2021	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	349579000	USD
CY2020	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	146738000	USD
CY2019	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	13057000	USD
CY2021	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	53654000	USD
CY2020	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	59894000	USD
CY2019	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	15505000	USD
CY2021	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	33022000	USD
CY2020	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	27350000	USD
CY2019	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	95636000	USD
CY2021	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	31702000	USD
CY2020	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	27104000	USD
CY2019	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	97160000	USD
CY2021	us-gaap	Payments For Proceeds From Loans Receivable PaymentsForProceedsFromLoansReceivable	-72489000	USD
CY2020	us-gaap	Payments For Proceeds From Loans Receivable PaymentsForProceedsFromLoansReceivable	229311000	USD
CY2019	us-gaap	Payments For Proceeds From Loans Receivable PaymentsForProceedsFromLoansReceivable	300210000	USD
CY2021	us-gaap	Proceeds From Sale Of Finance Receivables ProceedsFromSaleOfFinanceReceivables	59844000	USD
CY2020	us-gaap	Proceeds From Sale Of Finance Receivables ProceedsFromSaleOfFinanceReceivables	0	USD
CY2019	us-gaap	Proceeds From Sale Of Finance Receivables ProceedsFromSaleOfFinanceReceivables	0	USD
CY2021	us-gaap	Proceeds From Sale Of Property Held For Sale ProceedsFromSaleOfPropertyHeldForSale	0	USD
CY2020	us-gaap	Proceeds From Sale Of Property Held For Sale ProceedsFromSaleOfPropertyHeldForSale	0	USD
CY2019	us-gaap	Proceeds From Sale Of Property Held For Sale ProceedsFromSaleOfPropertyHeldForSale	21060000	USD
CY2021	he	Payments To Acquire Property Plant And Equipment Net Proceeds From Contribution In Aid Of Construction PaymentsToAcquirePropertyPlantAndEquipmentNetProceedsFromContributionInAidOfConstruction	314524000	USD
CY2020	he	Payments To Acquire Property Plant And Equipment Net Proceeds From Contribution In Aid Of Construction PaymentsToAcquirePropertyPlantAndEquipmentNetProceedsFromContributionInAidOfConstruction	383895000	USD
CY2019	he	Payments To Acquire Property Plant And Equipment Net Proceeds From Contribution In Aid Of Construction PaymentsToAcquirePropertyPlantAndEquipmentNetProceedsFromContributionInAidOfConstruction	457520000	USD
CY2021	he	Proceeds From Sale Of Affordable Housing ProceedsFromSaleOfAffordableHousing	0	USD
CY2020	he	Proceeds From Sale Of Affordable Housing ProceedsFromSaleOfAffordableHousing	6725000	USD
CY2019	he	Proceeds From Sale Of Affordable Housing ProceedsFromSaleOfAffordableHousing	1000	USD
CY2021	us-gaap	Payments For Affordable Housing Programs PaymentsForAffordableHousingPrograms	16131000	USD
CY2020	us-gaap	Payments For Affordable Housing Programs PaymentsForAffordableHousingPrograms	9403000	USD
CY2019	us-gaap	Payments For Affordable Housing Programs PaymentsForAffordableHousingPrograms	6974000	USD
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-27000	USD
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-3412000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-13291000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1179592000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1413648000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-541709000	USD
CY2021	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	785255000	USD
CY2020	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	1115055000	USD
CY2019	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	113050000	USD
CY2021	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	-10493000	USD
CY2020	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	-71219000	USD
CY2019	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	86718000	USD
CY2021	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	0	USD
CY2020	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	165000000	USD
CY2019	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	75000000	USD
CY2021	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	65000000	USD
CY2020	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	150000000	USD
CY2019	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	50000000	USD
CY2021	he	Proceeds From Payments For Other Bank Borrowings ProceedsFromPaymentsForOtherBankBorrowings	-1365000	USD
CY2020	he	Proceeds From Payments For Other Bank Borrowings ProceedsFromPaymentsForOtherBankBorrowings	-25440000	USD
CY2019	he	Proceeds From Payments For Other Bank Borrowings ProceedsFromPaymentsForOtherBankBorrowings	5070000	USD
CY2021	us-gaap	Proceeds From Other Debt ProceedsFromOtherDebt	0	USD
CY2020	us-gaap	Proceeds From Other Debt ProceedsFromOtherDebt	30000000	USD
CY2019	us-gaap	Proceeds From Other Debt ProceedsFromOtherDebt	0	USD
CY2021	he	Repayments Of Other Bank Borrowings RepaymentsOfOtherBankBorrowings	0	USD
CY2020	he	Repayments Of Other Bank Borrowings RepaymentsOfOtherBankBorrowings	30000000	USD
CY2019	he	Repayments Of Other Bank Borrowings RepaymentsOfOtherBankBorrowings	0	USD
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	285886000	USD
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	415997000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	289349000	USD
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	82262000	USD
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	178969000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	287285000	USD
CY2021	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	-2006000	USD
CY2020	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	-5700000	USD
CY2019	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	-997000	USD
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	148643000	USD
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	144096000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	139463000	USD
CY2021	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	1890000	USD
CY2020	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	1890000	USD
CY2019	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	1890000	USD
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-3080000	USD
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-3203000	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-1836000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	756402000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1115535000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	87716000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-47517000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	131294000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	58477000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	358979000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	227685000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	169208000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	311462000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	358979000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	227685000	USD
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	5911000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	17558000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	30872000	USD
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	305551000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	341421000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	196813000	USD
CY2021Q4	he	Number Of Branches NumberOfBranches	42	branch
CY2021	us-gaap	Use Of Estimates UseOfEstimates	Material estimates that are particularly susceptible to significant change for HEI and its subsidiaries (collectively, the Company) include the amounts reported as fair value for investment securities (ASB only); pension and other postretirement benefit obligations; contingencies and litigation; income taxes; regulatory assets and liabilities (Utilities only); electric utility unbilled revenues (Utilities only); asset retirement obligations (Utilities only); and allowance for credit losses (ASB only).
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	5900000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	17600000	USD
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2021	us-gaap	Financing Receivable Allowance For Credit Losses Policy For Uncollectible Amounts FinancingReceivableAllowanceForCreditLossesPolicyForUncollectibleAmounts	The allowance for credit losses (ACL) represents management’s estimate of expected credit losses over the expected contractual life of the related loans as of the balance sheet date. Contractual terms are adjusted for expected prepayments but are not extended for expected extensions, renewals or modifications except in circumstances where ASB reasonably expects to execute a troubled debt restructuring with the borrower or where certain extension or renewal options are embedded in the original contract and not unconditionally cancellable by the Bank.<div style="margin-bottom:8pt;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Accrued interest receivables on loans are presented in the Consolidated Financial Statements as a component of other assets. When accrued interest is deemed to be uncollectible (typically when a loan is placed on nonaccrual status), interest income is reversed against interest income on loans. ASB follows established policies for placing loans on nonaccrual status, so uncollectible accrued interest receivable is reversed in a timely manner. As a result, the Bank has elected not to measure an allowance for credit losses for accrued interest receivables.</span></div><div style="margin-bottom:8pt;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Credit losses are charged and recoveries are credited to the ACL. The ACL is maintained at a level the Bank considers to be adequate and is based on ongoing assessments and evaluations of the collectability of loans. The Bank’s expected credit loss models consider historical credit loss experience, current market and economic conditions, and forecasted changes in market and economic conditions if such forecasts are considered reasonable and supportable. Generally, the Bank considers its forecasts to be reasonable and supportable for a period of up to a year from the estimation date. For periods beyond the reasonable and supportable forecast period, expected credit losses are estimated by reverting to historical loss information without adjustment for changes in economic conditions. The Bank evaluates the length of its reasonable and supportable forecast period, its reversion period and reversion methodology at least annually, or more often if warranted by economic conditions or other circumstances.</span></div><div style="margin-bottom:8pt;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Bank’s methodology for determining the ACL includes an estimate of expected credit losses on a collective basis for groups of loans with similar risk characteristics and specific allowances for loans which are individually evaluated.</span></div><div style="margin-bottom:8pt;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">ASB disaggregates its portfolio loans into portfolio segments for purposes of determining the allowance for credit losses. Commercial, commercial real estate, and commercial construction loans are defined as non-homogeneous loans and ASB utilizes a risk rating system for evaluating the credit quality of the loans. Non-homogeneous loans are also categorized into the regulatory asset quality classifications—Pass, Special Mention, Substandard, Doubtful, and Loss based on credit quality. ASB utilizes a numerical-based, risk rating “PD Model” that takes into consideration fiscal year-end financial information of the borrower and identified financial attributes including retained earnings, operating cash flows, interest coverage, liquidity and leverage that demonstrate a strong correlation with default to assign default probabilities at the borrower level. In addition, a loss given default (LGD) value is assigned to each loan to measure loss in the event of default based on loan specific features such as collateral that mitigates the amount of loss in the event of default.</span></div><div style="margin-bottom:8pt;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Residential, consumer and credit scored business loans are considered homogeneous loans, which are typically underwritten based on common, uniform standards. For the homogeneous portfolio, the quality of the loan is best indicated by the repayment performance of an individual borrower. ASB supplements performance data with external credit bureau data and credit scores such as the Fair Isaac Corporation (FICO) score on a quarterly basis. ASB has built portfolio loss models for each major segment based on the combination of internal and external data to predict the probability of default at the loan level.</span></div><div style="margin-bottom:8pt;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Bank also considers qualitative factors in determining the ACL. Qualitative factors are used to capture characteristics in the portfolio that impact expected credit losses but that are not fully captured within the Bank’s expected credit loss models. These include but are not limited to adjustments for changes in policies or procedures in underwriting, monitoring or collections, economic conditions, portfolio mix, lending and risk management personnel, results of internal audit and quality control reviews, collateral values and any concentrations of credit.</span></div><div style="margin-bottom:8pt;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The reserve for unfunded commitments is maintained at a level believed by management to cover expected losses related to unfunded credit facilities and is included in accounts payable and other liabilities in the consolidated balance sheets. The </span></div><div style="margin-bottom:8pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">determination of the adequacy of the reserve is based upon an evaluation of the unfunded credit facilities, including an assessment of historical commitment utilization experience, credit risk grading and historical loss rates. This process takes into consideration the same risk elements that are analyzed in the determination of the adequacy of the allowance for credit losses, as discussed above. Net adjustments to the reserve for unfunded commitments are included in the provision for credit losses in the consolidated statements of income.</span></div><div style="margin-bottom:8pt;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The allowance for credit losses is based on currently available information and historical experience, and future adjustments may be required from time to time to the allowance for credit losses based on new information and changes that occur (e.g., due to changes in economic conditions, particularly in Hawaii). Actual losses could differ from management’s estimates, and these differences and subsequent adjustments could be material.</span></div>
CY2021	us-gaap	Revenues Revenues	2850379000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	278702000	USD
CY2021	us-gaap	Interest Expense InterestExpense	99403000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	310863000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	62807000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	248056000	USD
CY2021	us-gaap	Noncontrolling Interest In Net Income Loss Preferred Unit Holders Redeemable NoncontrollingInterestInNetIncomeLossPreferredUnitHoldersRedeemable	1890000	USD
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	246166000	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	314524000	USD
CY2021Q4	us-gaap	Assets Assets	15822637000	USD
CY2020	us-gaap	Revenues Revenues	2579775000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	290778000	USD
CY2020	us-gaap	Interest Expense InterestExpense	99808000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	240624000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	40910000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	199714000	USD
CY2020	us-gaap	Noncontrolling Interest In Net Income Loss Preferred Unit Holders Redeemable NoncontrollingInterestInNetIncomeLossPreferredUnitHoldersRedeemable	1890000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	197824000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	383895000	USD
CY2020Q4	us-gaap	Assets Assets	15004007000	USD
CY2019	us-gaap	Revenues Revenues	2873948000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	278113000	USD
CY2019	us-gaap	Interest Expense InterestExpense	109339000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	271409000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	51637000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	219772000	USD
CY2019	us-gaap	Noncontrolling Interest In Net Income Loss Preferred Unit Holders Redeemable NoncontrollingInterestInNetIncomeLossPreferredUnitHoldersRedeemable	1890000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	217882000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	457520000	USD
CY2019Q4	us-gaap	Assets Assets	13745251000	USD
CY2021Q4	he	Variable Interest Entity Number Of Consolidated Vi Es VariableInterestEntityNumberOfConsolidatedVIEs	3	entity
CY2021Q4	he	Variable Interest Entity Number Of Consolidated Vi Es VariableInterestEntityNumberOfConsolidatedVIEs	3	entity
CY2020Q4	he	Public Utilities Pilot Process Annual Cap PublicUtilitiesPilotProcessAnnualCap	10000000	USD
CY2020Q4	he	Public Utilities Pilot Process Proposal Period PublicUtilitiesPilotProcessProposalPeriod	P45D
CY2021Q4	he	Public Utilities Advanced Metering Infrastructure Utilization Performance Incentive Mechanism Annual Maximum Reward PublicUtilitiesAdvancedMeteringInfrastructureUtilizationPerformanceIncentiveMechanismAnnualMaximumReward	2000000	USD
CY2021	he	Public Utilities Advanced Metering Infrastructure Utilization Performance Incentive Mechanism Term PublicUtilitiesAdvancedMeteringInfrastructureUtilizationPerformanceIncentiveMechanismTerm	P3Y
CY2021	he	Public Utilities Annual Revenue Adjustment Revenues PublicUtilitiesAnnualRevenueAdjustmentRevenues	29500000	USD
CY2021	he	Public Utilities Annual Revenue Adjustment Management Audit Savings Commitment PublicUtilitiesAnnualRevenueAdjustmentManagementAuditSavingsCommitment	6600000	USD
CY2021	he	Public Utilities Annual Revenue Adjustment Net Incremental Revenues PublicUtilitiesAnnualRevenueAdjustmentNetIncrementalRevenues	22900000	USD
CY2021	he	Public Utility Annual Incremental Rate Adjustment Mechanism Adjusted Revenue PublicUtilityAnnualIncrementalRateAdjustmentMechanismAdjustedRevenue	61500000	USD
CY2021	he	Public Utility Increase Decrease In Accrued Earnings Sharing Credits To Be Refunded PublicUtilityIncreaseDecreaseInAccruedEarningsSharingCreditsToBeRefunded	-24300000	USD
CY2021	he	Public Utilities Decoupling Filing Performance Incentive Mechanism Net PublicUtilitiesDecouplingFilingPerformanceIncentiveMechanismNet	100000	USD
CY2021	he	Public Utilities Incremental Major Project Interim Recovery And Exceptional Project Recovery Mechanism Adjustment PublicUtilitiesIncrementalMajorProjectInterimRecoveryAndExceptionalProjectRecoveryMechanismAdjustment	10400000	USD
CY2021	he	Public Utility Net Receivable Under Tariff PublicUtilityNetReceivableUnderTariff	96200000	USD
CY2021	he	Other Noninterest Expense Cares Act OtherNoninterestExpenseCARESAct	600000	USD
CY2020	he	Other Noninterest Expense Cares Act OtherNoninterestExpenseCARESAct	5100000	USD
CY2020	he	Other Noninterest Expense Incremental Compensation Expense Cares Act OtherNoninterestExpenseIncrementalCompensationExpenseCARESAct	2500000	USD
CY2020	he	Other Noninterest Expense Cleaning And Sanitation Costs Cares Act OtherNoninterestExpenseCleaningAndSanitationCostsCARESAct	2000000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	15055000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	15298000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	62461000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	63256000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	58250000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	58141000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	0	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	0	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	135766000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	136695000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	2482618000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	2437923000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	2618384000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	2574618000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	0	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	0	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	0	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	0	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	59871000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	510474000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	59869000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount	0	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	0	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities Single Maturity Date Amortized Cost Basis HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	59871000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities Single Maturity Date Fair Value HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue	59869000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities Without Single Maturity Date Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateNetCarryingAmount	462399000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities Without Single Maturity Date Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	450605000	USD
CY2021Q4	us-gaap	Debt Securities Held To Maturity Amortized Cost After Allowance For Credit Loss DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss	522270000	USD
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	197354000	USD
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	169157000	USD
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	19810000	USD
CY2021	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	975000	USD
CY2020	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	9275000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	653000	USD
CY2021	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	-447000	USD
CY2020	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0	USD
CY2021	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	42534000	USD
CY2020	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	29760000	USD
CY2019	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	31848000	USD
CY2021	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	930000	USD
CY2020	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	769000	USD
CY2019	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	1074000	USD
CY2021	us-gaap	Interest Income Operating InterestIncomeOperating	43464000	USD
CY2020	us-gaap	Interest Income Operating InterestIncomeOperating	30529000	USD
CY2019	us-gaap	Interest Income Operating InterestIncomeOperating	32922000	USD
CY2021Q4	he	Available For Sale Securities Pledged At Carrying Value As Collateral AvailableForSaleSecuritiesPledgedAtCarryingValueAsCollateral	416000000	USD
CY2020Q4	he	Available For Sale Securities Pledged At Carrying Value As Collateral AvailableForSaleSecuritiesPledgedAtCarryingValueAsCollateral	353000000	USD
CY2021Q4	he	Available For Sale Securities Pledged At Carrying Value As Collateral For Securities Sold Under Repurchase Agreement AvailableForSaleSecuritiesPledgedAtCarryingValueAsCollateralForSecuritiesSoldUnderRepurchaseAgreement	161000000	USD
CY2020Q4	he	Available For Sale Securities Pledged At Carrying Value As Collateral For Securities Sold Under Repurchase Agreement AvailableForSaleSecuritiesPledgedAtCarryingValueAsCollateralForSecuritiesSoldUnderRepurchaseAgreement	92000000	USD
CY2021Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	5221204000	USD
CY2020Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	5345226000	USD
CY2021Q4	us-gaap	Financing Receivable Unamortized Loan Commitment Origination Fee And Premium Discount FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount	-10090000	USD
CY2020Q4	us-gaap	Financing Receivable Unamortized Loan Commitment Origination Fee And Premium Discount FinancingReceivableUnamortizedLoanCommitmentOriginationFeeAndPremiumDiscount	-11383000	USD
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	71130000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	101201000	USD
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	5139984000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	5232642000	USD
CY2021	he	Minimum Benchmark Percentage Of Loan To Appraisal Ratio Which Mortgage Insurance Is Required MinimumBenchmarkPercentageOfLoanToAppraisalRatioWhichMortgageInsuranceIsRequired	0.80
CY2021	he	Minimum Benchmark Percentageof Loanto Non Owner Occupied Residential Property Purchased MinimumBenchmarkPercentageofLoantoNonOwnerOccupiedResidentialPropertyPurchased	0.75
CY2021Q4	he	Real Estate Loans Serviced For Investors RealEstateLoansServicedForInvestors	1500000000	USD
CY2020Q4	he	Real Estate Loans Serviced For Investors RealEstateLoansServicedForInvestors	1500000000	USD
CY2019Q4	he	Real Estate Loans Serviced For Investors RealEstateLoansServicedForInvestors	1300000000	USD
CY2021Q4	us-gaap	Loans Pledged As Collateral LoansPledgedAsCollateral	2800000000	USD
CY2020Q4	us-gaap	Loans Pledged As Collateral LoansPledgedAsCollateral	3000000000	USD
CY2021Q4	he	Loan Balances Related To Interest Of Individual Directors Executive Officers And Related Interests LoanBalancesRelatedToInterestOfIndividualDirectorsExecutiveOfficersAndRelatedInterests	13100000	USD
CY2020Q4	he	Loan Balances Related To Interest Of Individual Directors Executive Officers And Related Interests LoanBalancesRelatedToInterestOfIndividualDirectorsExecutiveOfficersAndRelatedInterests	13200000	USD
CY2021Q4	he	Loan Balances Related To Interest Of Individual Directors LoanBalancesRelatedToInterestOfIndividualDirectors	10000000	USD
CY2020Q4	he	Loan Balances Related To Interest Of Individual Directors LoanBalancesRelatedToInterestOfIndividualDirectors	10000000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	101201000	USD
CY2021	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	9700000	USD
CY2021	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	6054000	USD
CY2021	us-gaap	Financing Receivable Allowance For Credit Loss Writeoff After Recovery FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery	3646000	USD
CY2021	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-26425000	USD
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	71130000	USD
CY2021	he	Financing Receivable Average Outstanding FinancingReceivableAverageOutstanding	5220491000	USD
CY2021Q4	he	Financing Receivable Net Charge Offs Recoveries To Average Loans FinancingReceivableNetChargeOffsRecoveriesToAverageLoans	0.0007
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	53355000	USD
CY2020	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	26154000	USD
CY2020	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	4748000	USD
CY2020	us-gaap	Financing Receivable Allowance For Credit Loss Writeoff After Recovery FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery	21406000	USD
CY2020	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	49811000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	101201000	USD
CY2020	he	Financing Receivable Average Outstanding FinancingReceivableAverageOutstanding	5340287000	USD
CY2020Q4	he	Financing Receivable Net Charge Offs Recoveries To Average Loans FinancingReceivableNetChargeOffsRecoveriesToAverageLoans	0.0040
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	52119000	USD
CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	28662000	USD
CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	6418000	USD
CY2019	us-gaap	Financing Receivable Allowance For Credit Loss Writeoff After Recovery FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery	22244000	USD
CY2019	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	23480000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	53355000	USD
CY2019	he	Financing Receivable Average Outstanding FinancingReceivableAverageOutstanding	4986830000	USD
CY2019Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	5079927000	USD
CY2020Q4	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	4300000	USD
CY2021	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	600000	USD
CY2021Q4	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	4900000	USD
CY2019Q4	he	Financing Receivable Net Charge Offs Recoveries To Average Loans FinancingReceivableNetChargeOffsRecoveriesToAverageLoans	0.0045
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	2691000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	50664000	USD
CY2019Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	5120664000	USD
CY2019Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	40737000	USD
CY2019Q4	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	1741000	USD
CY2020	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	1000000	USD
CY2020Q4	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	4300000	USD
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear	1325112000	USD
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	934584000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	590363000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	382648000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	335784000	USD
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	367452000	USD
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	236305000	USD
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear	217965000	USD
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear	1119478000	USD
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Revolving FinancingReceivableExcludingAccruedInterestRevolving	958710000	USD
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Revolving Converted To Term Loan FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoan	61598000	USD
CY2021Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	5221204000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear	1339586000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear	368904000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear	1172236000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Revolving FinancingReceivableExcludingAccruedInterestRevolving	1093287000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Revolving Converted To Term Loan FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoan	62418000	USD
CY2020Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	5345226000	USD
CY2021Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	5221204000	USD
CY2021Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	0	USD
CY2020Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	5345226000	USD
CY2020Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	0	USD
CY2021Q4	he	Financing Receivable Nonaccrual With Allowance FinancingReceivableNonaccrualWithAllowance	37764000	USD
CY2021Q4	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	7210000	USD
CY2021Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	44974000	USD
CY2020Q4	he	Financing Receivable Nonaccrual With Allowance FinancingReceivableNonaccrualWithAllowance	36491000	USD
CY2020Q4	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	10905000	USD
CY2020Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	47396000	USD
CY2021	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	24917000	USD
CY2020	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	27078000	USD
CY2021	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	24	contract
CY2021	he	Financing Receivables Modifications Pre Modification Recorded Investment FinancingReceivablesModificationsPreModificationRecordedInvestment	12109000	USD
CY2021	he	Financing Receivables Modifications Post Modification Recorded Investment FinancingReceivablesModificationsPostModificationRecordedInvestment	685000	USD
CY2020	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	68	contract
CY2020	he	Financing Receivables Modifications Pre Modification Recorded Investment FinancingReceivablesModificationsPreModificationRecordedInvestment	26991000	USD
CY2020	he	Financing Receivables Modifications Post Modification Recorded Investment FinancingReceivablesModificationsPostModificationRecordedInvestment	5379000	USD
CY2019	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	25	contract
CY2019	he	Financing Receivables Modifications Pre Modification Recorded Investment FinancingReceivablesModificationsPreModificationRecordedInvestment	8821000	USD
CY2019	he	Financing Receivables Modifications Post Modification Recorded Investment FinancingReceivablesModificationsPostModificationRecordedInvestment	680000	USD
CY2021	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	2	contract
CY2021	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	483000	USD
CY2020	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	0	contract
CY2020	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	0	USD
CY2019	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	0	contract
CY2019	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	0	USD
CY2021Q4	he	Commitments To Borrowers Whose Loan Terms Are Impaired Or Modified Under Troubled Debt Restructuring CommitmentsToBorrowersWhoseLoanTermsAreImpairedOrModifiedUnderTroubledDebtRestructuring	0	USD
CY2020Q4	he	Commitments To Borrowers Whose Loan Terms Are Impaired Or Modified Under Troubled Debt Restructuring CommitmentsToBorrowersWhoseLoanTermsAreImpairedOrModifiedUnderTroubledDebtRestructuring	0	USD
CY2021Q4	he	Financial Receivables Loans Collateralized By Real Estate In Foreclosure FinancialReceivablesLoansCollateralizedByRealEstateInForeclosure	3400000	USD
CY2020Q4	he	Financial Receivables Loans Collateralized By Real Estate In Foreclosure FinancialReceivablesLoansCollateralizedByRealEstateInForeclosure	3800000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	14037000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	15123000	USD
CY2019	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	17422000	USD
CY2019	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	1400000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	26700000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	26762000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	2691000	USD
CY2019	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	27972000	USD
CY2019	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	1119000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	40737000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	41885000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	2691000	USD
CY2019	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	45394000	USD
CY2019	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	2519000	USD
CY2021Q4	us-gaap	Weighted Average Rate Domestic Deposit Savings WeightedAverageRateDomesticDepositSavings	0.0003
CY2021Q4	us-gaap	Interest Bearing Domestic Deposit Savings InterestBearingDomesticDepositSavings	3234646000	USD
CY2020Q4	us-gaap	Weighted Average Rate Domestic Deposit Savings WeightedAverageRateDomesticDepositSavings	0.0003
CY2020Q4	us-gaap	Interest Bearing Domestic Deposit Savings InterestBearingDomesticDepositSavings	2873727000	USD
CY2021Q4	us-gaap	Weighted Average Rate Domestic Deposit Checking WeightedAverageRateDomesticDepositChecking	0.0002
CY2021Q4	us-gaap	Interest Bearing Domestic Deposit Checking InterestBearingDomesticDepositChecking	1344049000	USD
CY2020Q4	us-gaap	Weighted Average Rate Domestic Deposit Checking WeightedAverageRateDomesticDepositChecking	0.0002
CY2020Q4	us-gaap	Interest Bearing Domestic Deposit Checking InterestBearingDomesticDepositChecking	1196675000	USD
CY2021Q4	he	Weighted Average Rate Domestic Deposit Checking Noninterest Bearing WeightedAverageRateDomesticDepositCheckingNoninterestBearing	0
CY2021Q4	us-gaap	Noninterest Bearing Domestic Deposit Checking NoninterestBearingDomesticDepositChecking	1472727000	USD
CY2020Q4	he	Weighted Average Rate Domestic Deposit Checking Noninterest Bearing WeightedAverageRateDomesticDepositCheckingNoninterestBearing	0
CY2020Q4	us-gaap	Noninterest Bearing Domestic Deposit Checking NoninterestBearingDomesticDepositChecking	1329264000	USD
CY2021Q4	he	Weighted Average Rate Domestic Deposit Commercial Checking WeightedAverageRateDomesticDepositCommercialChecking	0
CY2021Q4	he	Noninterest Bearing Domestic Deposit Commercial Checking NoninterestBearingDomesticDepositCommercialChecking	1503905000	USD
CY2020Q4	he	Weighted Average Rate Domestic Deposit Commercial Checking WeightedAverageRateDomesticDepositCommercialChecking	0
CY2020Q4	he	Noninterest Bearing Domestic Deposit Commercial Checking NoninterestBearingDomesticDepositCommercialChecking	1269236000	USD
CY2021Q4	us-gaap	Weighted Average Rate Domestic Deposit Money Market WeightedAverageRateDomesticDepositMoneyMarket	0.0006
CY2021Q4	us-gaap	Interest Bearing Domestic Deposit Money Market InterestBearingDomesticDepositMoneyMarket	192909000	USD
CY2020Q4	us-gaap	Weighted Average Rate Domestic Deposit Money Market WeightedAverageRateDomesticDepositMoneyMarket	0.0009
CY2020Q4	us-gaap	Interest Bearing Domestic Deposit Money Market InterestBearingDomesticDepositMoneyMarket	169225000	USD
CY2021Q4	us-gaap	Weighted Average Rate Domestic Deposit Certificates Of Deposit WeightedAverageRateDomesticDepositCertificatesOfDeposit	0.0067
CY2021Q4	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	423976000	USD
CY2020Q4	us-gaap	Weighted Average Rate Domestic Deposit Certificates Of Deposit WeightedAverageRateDomesticDepositCertificatesOfDeposit	0.0099
CY2020Q4	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	548830000	USD
CY2021Q4	us-gaap	Weighted Average Rate Domestic Deposit WeightedAverageRateDomesticDeposit	0.0005
CY2021Q4	us-gaap	Deposits Deposits	8172212000	USD
CY2020Q4	us-gaap	Weighted Average Rate Domestic Deposit WeightedAverageRateDomesticDeposit	0.0009
CY2020Q4	us-gaap	Deposits Deposits	7386957000	USD
CY2021Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	87600000	USD
CY2020Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	121300000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	275702000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	60049000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	47248000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	24278000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	13736000	USD
CY2021Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	2963000	USD
CY2021Q4	us-gaap	Time Deposits TimeDeposits	423976000	USD
CY2021Q4	he	Overdrawn Deposit Accounts OverdrawnDepositAccounts	1300000	USD
CY2020Q4	he	Overdrawn Deposit Accounts OverdrawnDepositAccounts	1000000	USD
CY2021	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	3805000	USD
CY2020	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	7944000	USD
CY2019	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	12675000	USD
CY2021	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	802000	USD
CY2020	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	1774000	USD
CY2019	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	1904000	USD
CY2021	us-gaap	Interest Expense Money Market Deposits InterestExpenseMoneyMarketDeposits	132000	USD
CY2020	us-gaap	Interest Expense Money Market Deposits InterestExpenseMoneyMarketDeposits	465000	USD
CY2019	us-gaap	Interest Expense Money Market Deposits InterestExpenseMoneyMarketDeposits	953000	USD
CY2021	he	Interest Expense Interest Bearing Checking InterestExpenseInterestBearingChecking	242000	USD
CY2020	he	Interest Expense Interest Bearing Checking InterestExpenseInterestBearingChecking	471000	USD
CY2019	he	Interest Expense Interest Bearing Checking InterestExpenseInterestBearingChecking	1298000	USD
CY2021	us-gaap	Interest Expense Deposits InterestExpenseDeposits	4981000	USD
CY2020	us-gaap	Interest Expense Deposits InterestExpenseDeposits	10654000	USD
CY2019	us-gaap	Interest Expense Deposits InterestExpenseDeposits	16830000	USD
CY2021Q4	us-gaap	Securities Sold Under Agreements To Repurchase Gross SecuritiesSoldUnderAgreementsToRepurchaseGross	88000000	USD
CY2021Q4	us-gaap	Securities Sold Under Agreements To Repurchase Asset SecuritiesSoldUnderAgreementsToRepurchaseAsset	0	USD
CY2021Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	88000000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase Gross SecuritiesSoldUnderAgreementsToRepurchaseGross	90000000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase Asset SecuritiesSoldUnderAgreementsToRepurchaseAsset	0	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	90000000	USD
CY2021	he	Securities Sold Under Agreements To Repurchase Fair Value Of Collateral Percent Of Fair Value SecuritiesSoldUnderAgreementsToRepurchaseFairValueOfCollateralPercentOfFairValue	0.05
CY2021Q4	us-gaap	Assets Sold Under Agreements To Repurchase Repurchase Liability AssetsSoldUnderAgreementsToRepurchaseRepurchaseLiability	88305000	USD
CY2021Q4	us-gaap	Assets Sold Under Agreements To Repurchase Interest Rate AssetsSoldUnderAgreementsToRepurchaseInterestRate	0.0002
CY2020Q4	us-gaap	Assets Sold Under Agreements To Repurchase Repurchase Liability AssetsSoldUnderAgreementsToRepurchaseRepurchaseLiability	89670000	USD
CY2020Q4	us-gaap	Assets Sold Under Agreements To Repurchase Interest Rate AssetsSoldUnderAgreementsToRepurchaseInterestRate	0.0002
CY2021	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-3409000	USD
CY2020	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	3781000	USD
CY2019	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	207000	USD
CY2021Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	3164000	USD
CY2020Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	2249000	USD
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	2321937000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	2119129000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	223000000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	163000000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	6000000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	104000000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	131000000	USD
CY2021Q4	us-gaap	Common Stock Capital Shares Reserved For Future Issuance CommonStockCapitalSharesReservedForFutureIssuance	16400000	shares
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	30571000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	18775000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-51269000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P10Y
CY2021Q4	he	Lessee Operating Lease Payments Basis Reduction For Impact Of Collateral LesseeOperatingLeasePaymentsBasisReductionForImpactOfCollateral	0.0025
CY2020Q4	us-gaap	Area Of Real Estate Property AreaOfRealEstateProperty	64000	sqft
CY2020Q4	us-gaap	Lessor Operating Lease Renewal Term LessorOperatingLeaseRenewalTerm	P2Y
CY2020Q4	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	8300000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Lease Not Yet Commenced Term Of Contract1 LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1	P5Y
CY2021Q3	us-gaap	Lessee Operating Lease Lease Not Yet Commenced Renewal Term1 LesseeOperatingLeaseLeaseNotYetCommencedRenewalTerm1	P5Y
CY2021Q3	he	Lessee Operating Lease Lease Not Yet Commenced Annual Rent Expense LesseeOperatingLeaseLeaseNotYetCommencedAnnualRentExpense	6200000	USD
CY2021Q3	he	Lessee Operating Lease Lease Not Yet Commenced Liability LesseeOperatingLeaseLeaseNotYetCommencedLiability	32000000	USD
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	80254000	USD
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	271832000	USD
CY2021	us-gaap	Sublease Income SubleaseIncome	2515000	USD
CY2021	us-gaap	Lease Cost LeaseCost	349571000	USD
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	73375000	USD
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y1M6D
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0318
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	74520000	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	229938000	USD
CY2020	us-gaap	Lease Cost LeaseCost	304458000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	71584000	USD
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y4M24D
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0361
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	10000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	40000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	57000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	17000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	15000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	11000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	150000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	13000000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	137000000	USD
CY2021Q4	he	Lessee Operating Lease Not In Service Annual Capacity Payment LesseeOperatingLeaseNotInServiceAnnualCapacityPayment	3800000	USD
CY2021	he	General Payment Period GeneralPaymentPeriod	P30D
CY2021	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	2521425000	USD
CY2020	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	2269451000	USD
CY2021	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
CY2021	us-gaap	Revenue Not From Contract With Customer RevenueNotFromContractWithCustomer	328954000	USD
CY2020	us-gaap	Revenue Not From Contract With Customer RevenueNotFromContractWithCustomer	310324000	USD
CY2021	us-gaap	Revenues Revenues	2850379000	USD
CY2020	us-gaap	Revenues Revenues	2579775000	USD
CY2021	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	2521425000	USD
CY2020	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	2269451000	USD
CY2021	he	Defined Benefit Plan Vested Percentage Of Interest Of Each Affected Participant After Participating Employer Terminates Participation DefinedBenefitPlanVestedPercentageOfInterestOfEachAffectedParticipantAfterParticipatingEmployerTerminatesParticipation	1
CY2021	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
CY2021	he	Executive Life And Defined Benefit Plan Nonqualified Pension Plan Expenses ExecutiveLifeAndDefinedBenefitPlanNonqualifiedPensionPlanExpenses	1200000	USD
CY2020	he	Executive Life And Defined Benefit Plan Nonqualified Pension Plan Expenses ExecutiveLifeAndDefinedBenefitPlanNonqualifiedPensionPlanExpenses	1100000	USD
CY2021	he	Defined Benefit Plan Accumulated Other Comprehensive Income Regulatory Asset Charges Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeRegulatoryAssetChargesBeforeTax	-230800000	USD
CY2020	he	Defined Benefit Plan Accumulated Other Comprehensive Income Regulatory Asset Charges Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeRegulatoryAssetChargesBeforeTax	53700000	USD
CY2021	he	Defined Benefit Plan Plan Assets At Fair Value Percentage Of Valuation Difference Amortized In Year One DefinedBenefitPlanPlanAssetsAtFairValuePercentageOfValuationDifferenceAmortizedInYearOne	0
CY2021	he	Defined Benefit Plan Plan Assets At Fair Value Percentage Of Valuation Difference Amortized In Years Two To Five DefinedBenefitPlanPlanAssetsAtFairValuePercentageOfValuationDifferenceAmortizedInYearsTwoToFive	0.25
CY2021	he	Defined Benefit Plan Number Of Past Years For Adding Or Subtracting Unamortized Differences From Fair Value DefinedBenefitPlanNumberOfPastYearsForAddingOrSubtractingUnamortizedDifferencesFromFairValue	P4Y
CY2021	he	Defined Benefit Plan Plan Assets At Fair Value Range Around Fair Value Percentage DefinedBenefitPlanPlanAssetsAtFairValueRangeAroundFairValuePercentage	0.15
CY2020	he	Defined Contribution Plan Contributions By Employer DefinedContributionPlanContributionsByEmployer	7000000	USD
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	6000000	USD
CY2021	he	Defined Contribution Plan Contributions By Employer DefinedContributionPlanContributionsByEmployer	6000000	USD
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	7000000	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	7000000	USD
CY2019	he	Defined Contribution Plan Contributions By Employer DefinedContributionPlanContributionsByEmployer	7000000	USD
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	9100000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	5800000	USD
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	51455000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	10000000.0	USD
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1400000	USD
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1000000.0	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1400000	USD
CY2020	he	Deferred Federal Tax Credits Net DeferredFederalTaxCreditsNet	-10979000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	23207000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	28736000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-11689000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-4215000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-4353000	USD
CY2021	he	Deferred Federal Tax Credits Net DeferredFederalTaxCreditsNet	-4611000	USD
CY2019	he	Deferred Federal Tax Credits Net DeferredFederalTaxCreditsNet	-13410000	USD
CY2021	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	44377000	USD
CY2020	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	29971000	USD
CY2019	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	37793000	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	12119000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	8430000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	10472000	USD
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	6290000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	2509000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-10732000	USD
CY2021	he	Deferred State And Local Tax Credits Net DeferredStateAndLocalTaxCreditsNet	-21000	USD
CY2020	he	Deferred State And Local Tax Credits Net DeferredStateAndLocalTaxCreditsNet	0	USD
CY2019	he	Deferred State And Local Tax Credits Net DeferredStateAndLocalTaxCreditsNet	-14104000	USD
CY2021	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	18430000	USD
CY2020	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	10939000	USD
CY2019	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	13844000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	62807000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	40910000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	51637000	USD
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	65281000	USD
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	50531000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	56996000	USD
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	15735000	USD
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	9448000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	11658000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Amount	-9886000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Amount	-11267000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Amount EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Amount	-9255000	USD
CY2021	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-8323000	USD
CY2020	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-7802000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-7762000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	62807000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	40910000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	51637000	USD
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.202
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.170
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.190
CY2021Q4	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	87817000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	93684000	USD
CY2021Q4	he	Deferred Tax Assets Operating Lease Liabilities DeferredTaxAssetsOperatingLeaseLiabilities	35449000	USD
CY2020Q4	he	Deferred Tax Assets Operating Lease Liabilities DeferredTaxAssetsOperatingLeaseLiabilities	41582000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	234092000	USD
CY2021Q4	he	Deferred Tax Liabilities Operating Lease Right Of Use Asset DeferredTaxLiabilitiesOperatingLeaseRightOfUseAsset	35271000	USD
CY2020Q4	he	Deferred Tax Liabilities Operating Lease Right Of Use Asset DeferredTaxLiabilitiesOperatingLeaseRightOfUseAsset	41370000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	35040000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	22726000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	26217000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	31973000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	58518000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	44127000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	243041000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	500659000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	487209000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	23700000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	25841000	USD
CY2021Q4	he	Deferred Tax Liabilities Deferred Expense Postretirement Benefits DeferredTaxLiabilitiesDeferredExpensePostretirementBenefits	6863000	USD
CY2020Q4	he	Deferred Tax Liabilities Deferred Expense Postretirement Benefits DeferredTaxLiabilitiesDeferredExpensePostretirementBenefits	18407000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	61308000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	56354000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	627801000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	629181000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	384760000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	395089000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Other DeferredTaxAssetsTaxCreditCarryforwardsOther	11000000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	12700000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2200000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2100000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	2800000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	200000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	500000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	500000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	7600000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	11600000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	100000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	5500000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	100000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	200000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2020	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	200000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	300000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	1000000.0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	300000	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	17100000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	12700000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2200000	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	10200000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	11600000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	200000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	-500000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	100000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	100000	USD
CY2021	he	Interest Paid To Non Affiliates InterestPaidToNonAffiliates	98000000	USD
CY2020	he	Interest Paid To Non Affiliates InterestPaidToNonAffiliates	98000000	USD
CY2019	he	Interest Paid To Non Affiliates InterestPaidToNonAffiliates	107000000	USD
CY2021	us-gaap	Income Taxes Paid IncomeTaxesPaid	41000000	USD
CY2020	us-gaap	Income Taxes Paid IncomeTaxesPaid	32000000	USD
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	56000000	USD
CY2021	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	7000000	USD
CY2020	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	3000000	USD
CY2019	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	4000000	USD
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	48000000	USD
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	44000000	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	64000000	USD
CY2021	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	61000000	USD
CY2020	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	0	USD
CY2019	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	0	USD
CY2021	he	Property Plant And Equipment Transferred To Held For Sale PropertyPlantAndEquipmentTransferredToHeldForSale	3000000	USD
CY2020	he	Property Plant And Equipment Transferred To Held For Sale PropertyPlantAndEquipmentTransferredToHeldForSale	0	USD
CY2019	he	Property Plant And Equipment Transferred To Held For Sale PropertyPlantAndEquipmentTransferredToHeldForSale	0	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	44000000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	26000000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	7000000	USD
CY2021	he	Stock Issued During Period Value Director And Officer Compensatory Plans StockIssuedDuringPeriodValueDirectorAndOfficerCompensatoryPlans	7000000	USD
CY2020	he	Stock Issued During Period Value Director And Officer Compensatory Plans StockIssuedDuringPeriodValueDirectorAndOfficerCompensatoryPlans	16000000	USD
CY2019	he	Stock Issued During Period Value Director And Officer Compensatory Plans StockIssuedDuringPeriodValueDirectorAndOfficerCompensatoryPlans	5000000	USD
CY2021	us-gaap	Affordable Housing Program Assessments AffordableHousingProgramAssessments	36000000	USD
CY2020	us-gaap	Affordable Housing Program Assessments AffordableHousingProgramAssessments	25000000	USD
CY2019	us-gaap	Affordable Housing Program Assessments AffordableHousingProgramAssessments	11000000	USD
CY2021	he	Customer Bill Forgiveness CustomerBillForgiveness	2000000	USD
CY2021	he	Valuation Allowances And Reserves Additions Bad Debt Expenses Deferred To Regulatory Assets ValuationAllowancesAndReservesAdditionsBadDebtExpensesDeferredToRegulatoryAssets	10700000	USD
CY2020	he	Valuation Allowances And Reserves Additions Bad Debt Expenses Deferred To Regulatory Assets ValuationAllowancesAndReservesAdditionsBadDebtExpensesDeferredToRegulatoryAssets	16700000	USD
CY2021	he	Valuation Allowances And Reserves Additions Bad Debt Expenses Deferred To Regulatory Assets ValuationAllowancesAndReservesAdditionsBadDebtExpensesDeferredToRegulatoryAssets	10700000	USD

Files In Submission

Name	View Source	Status
0000354707-22-000049-index-headers.html	Edgar Link	pending
0000354707-22-000049-index.html	Edgar Link	pending
0000354707-22-000049.txt	Edgar Link	pending
0000354707-22-000049-xbrl.zip	Edgar Link	pending
a-5.jpg	Edgar Link	pending
a-6.jpg	Edgar Link	pending
b-19.jpg	Edgar Link	pending
b-20.jpg	Edgar Link	pending
b-21.jpg	Edgar Link	pending
b-22.jpg	Edgar Link	pending
b-23.jpg	Edgar Link	pending
b-24.jpg	Edgar Link	pending
b-25.jpg	Edgar Link	pending
b-26.jpg	Edgar Link	pending
b-27.jpg	Edgar Link	pending
b-28.jpg	Edgar Link	pending
b-29.jpg	Edgar Link	pending
b-30.jpg	Edgar Link	pending
b-31.jpg	Edgar Link	pending
b-32.jpg	Edgar Link	pending
b-33.jpg	Edgar Link	pending
b-34.jpg	Edgar Link	pending
b-35.jpg	Edgar Link	pending
b-36.jpg	Edgar Link	pending
b-37.jpg	Edgar Link	pending
b-38.jpg	Edgar Link	pending
b-39.jpg	Edgar Link	pending
b-40.jpg	Edgar Link	pending
b-41.jpg	Edgar Link	pending
b-42.jpg	Edgar Link	pending
b-43.jpg	Edgar Link	pending
e-1.jpg	Edgar Link	pending
f-1.jpg	Edgar Link	pending
f-2.jpg	Edgar Link	pending
f-3.jpg	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
he-20211231.htm	Edgar Link	pending
he-20211231.xsd	Edgar Link	pending
he-20211231_cal.xml	Edgar Link	unprocessable
he-20211231_def.xml	Edgar Link	unprocessable
he-20211231_htm.xml	Edgar Link	completed
he-20211231_lab.xml	Edgar Link	unprocessable
he-20211231_pre.xml	Edgar Link	unprocessable
heco-2021ex314.htm	Edgar Link	pending
heco-2021xex313.htm	Edgar Link	pending
heco-2021xex322.htm	Edgar Link	pending
hecoex101jamendedandrestat.htm	Edgar Link	pending
hecoex102famendmentno4aesh.htm	Edgar Link	pending
hecoex106sausebrosfueltran.htm	Edgar Link	pending
heexhibit21210k2021.htm	Edgar Link	pending
heexhibit99110k2021.htm	Edgar Link	pending
hei-2021ex321.htm	Edgar Link	pending
hei-2021xex311.htm	Edgar Link	pending
hei-2021xex312.htm	Edgar Link	pending
heiexhibit1110k2021.htm	Edgar Link	pending
heiexhibit21110k2021.htm	Edgar Link	pending
heiexhibit23110k2021.htm	Edgar Link	pending
heiexhibit43g.htm	Edgar Link	pending
heiexhibit43h.htm	Edgar Link	pending
image_0.jpg	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R100.htm	Edgar Link	pending
R101.htm	Edgar Link	pending
R102.htm	Edgar Link	pending
R103.htm	Edgar Link	pending
R104.htm	Edgar Link	pending
R105.htm	Edgar Link	pending
R106.htm	Edgar Link	pending
R107.htm	Edgar Link	pending
R108.htm	Edgar Link	pending
R109.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R110.htm	Edgar Link	pending
R111.htm	Edgar Link	pending
R112.htm	Edgar Link	pending
R113.htm	Edgar Link	pending
R114.htm	Edgar Link	pending
R115.htm	Edgar Link	pending
R116.htm	Edgar Link	pending
R117.htm	Edgar Link	pending
R118.htm	Edgar Link	pending
R119.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R120.htm	Edgar Link	pending
R121.htm	Edgar Link	pending
R122.htm	Edgar Link	pending
R123.htm	Edgar Link	pending
R124.htm	Edgar Link	pending
R125.htm	Edgar Link	pending
R126.htm	Edgar Link	pending
R127.htm	Edgar Link	pending
R128.htm	Edgar Link	pending
R129.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R130.htm	Edgar Link	pending
R131.htm	Edgar Link	pending
R132.htm	Edgar Link	pending
R133.htm	Edgar Link	pending
R134.htm	Edgar Link	pending
R135.htm	Edgar Link	pending
R136.htm	Edgar Link	pending
R137.htm	Edgar Link	pending
R138.htm	Edgar Link	pending
R139.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R140.htm	Edgar Link	pending
R141.htm	Edgar Link	pending
R142.htm	Edgar Link	pending
R143.htm	Edgar Link	pending
R144.htm	Edgar Link	pending
R145.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R78.htm	Edgar Link	pending
R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R81.htm	Edgar Link	pending
R82.htm	Edgar Link	pending
R83.htm	Edgar Link	pending
R84.htm	Edgar Link	pending
R85.htm	Edgar Link	pending
R86.htm	Edgar Link	pending
R87.htm	Edgar Link	pending
R88.htm	Edgar Link	pending
R89.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
R90.htm	Edgar Link	pending
R91.htm	Edgar Link	pending
R92.htm	Edgar Link	pending
R93.htm	Edgar Link	pending
R94.htm	Edgar Link	pending
R95.htm	Edgar Link	pending
R96.htm	Edgar Link	pending
R97.htm	Edgar Link	pending
R98.htm	Edgar Link	pending
R99.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$HE
HAWAIIAN ELECTRIC INDUSTRIES INC Stock $he

2021 Q4 Form 10-K Financial Statement

#000035470722000049 Filed on February 25, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HE HAWAIIAN ELECTRIC INDUSTRIES INC Stock $he

2021 Q4 Form 10-K Financial Statement

#000035470722000049 Filed on February 25, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HE
HAWAIIAN ELECTRIC INDUSTRIES INC Stock $he