<DefinitionAndReference>
  <Element Id="dei_EntityFilerCategory">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_PrincipalBalanceOfLoansWithPaymentPlans">
    <definition>Principal Balance Of Loans With Payment Plans.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ExtinguishmentOfDebtAmount">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_PreTaxChargeOnExtinguishmentOfDebtRecordedInNonInterestExpense">
    <definition>Pre tax charge on extinguishment of debt recorded in non interest expense.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_LoansAndLeasesReceivableImpairedUnpaidPrincipalBalance">
    <definition>Loans And Leases Receivable Impaired Unpaid Principal Balance.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_SummaryOfEarningsPerShareTableTextBlock">
    <definition>Summary of earnings per share.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsAggregateLosses">
    <definition>Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Aggregate Losses.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_BorrowedFundsMaturitiesAndPotentialPutDatesTableTextBlock">
    <definition>Borrowed funds maturities and potential put dates.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExercisesInPeriodWeightedAverageExercisePrice">
    <definition>Share Based Compensation Arrangement By Share Based Payment Award Option Exercises In Period Weighted Average Exercise Price.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_LoansAndLeasesReceivableAllowance">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_PrincipleAmountOfInvestmentSecuritiesAvailableForSale">
    <definition>Principle amount of investment securities available for sale.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_WeightedAverageRateSecuritiesSoldUnderAgreementsToRepurchase">
    <definition>Weighted Average Rate Securities sold under agreements to repurchase.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_DepreciationAmortizationAndAccretionNet">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="dei_EntityCurrentReportingStatus">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ReceivablesPolicyTextBlock">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_DepositsFairValueDisclosure">
    <definition>Deposits Fair Value Disclosure.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_PercentageOfHousePricesDeclinedNationwide">
    <definition>Percentage of house prices declined nationwide.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_NumberOfYearsWithInterestOnlyPaymentsForInterestOnlyLoansOfferedAsFixedRateLoans">
    <definition>Number of years with interest-only payments for interest-only loans offered as fixed-rate loans.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_BorrowedFundsSubjectToPutBackAtDiscretionOfLender">
    <definition>Borrowed funds subject to put back at discretion of lender.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_CreditRiskProfileBasedOnPaymentActivityPerformingLoan">
    <definition>Credit Risk Profile based on Payment Activity Performing Loan.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_LongTermDebtTextBlock">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_Deposits">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_AccruedExpensesAndOtherLiabilities">
    <definition>Accrued expenses and other liabilities.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_CashAndCashEquivalentsAtCarryingValue">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLossesTotal">
    <definition>Available For Sale Securities Continuous Unrealized Loss Position Aggregate Losses, Total.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_ComparisonOfDelinquentLoansByClassTableTextBlock">
    <definition>Comparison of delinquent loans by class.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_BorrowedFundsWeightedAverageRate">
    <definition>Borrowed Funds Weighted average rate.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_TreasuryStockShares">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_LoansAndLeasesReceivableConsumerMortgage">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_Assets">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ProceedsFromSaleOfFederalReserveStock">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_TotalNonPerformingLoans">
    <definition>Total Non Performing Loans.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_HeldToMaturitySecuritiesUnrecognizedHoldingLosses">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_TermInYearsOfLoansOriginatingAsLimitedDocumentationLoans">
    <definition>Term (in years) of loans originating as limited documentation loans.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAggregateLosses">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansTax">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_NumberOfLoansDisposedOfThroughForeclosureProcess">
    <definition>Number of loans disposed of through foreclosure process.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionGrantsInPeriodWeightedAverageExercisePrice">
    <definition>Share Based Compensation Arrangement By Share Based Payment Award Option Grants In Period Weighted Average Exercise Price.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_DividendIncomeOperating">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_AllowanceForLoanLossesByPortfolioSegmentTableTextBlock">
    <definition>Allowance for loan losses by portfolio segment.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_AvailableForSaleSecuritiesEquitySecurities">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_InterestExpense">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_TermInYearsOfInterestOnlyLoansOfferedAsFixedRateLoans">
    <definition>Term (in years) of interest-only loans offered as fixed-rate loans.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_LoansEligibleForLimitedDocumentationProcessing">
    <definition>Loans eligible for limited documentation processing .</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_CreditRiskProfileByInternallyAssignedGradeSubStandardLoan">
    <definition>Credit Risk Profile By Internally Assigned Grade Sub Standard Loan.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_InterestExpenseBorrowings">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_Liabilities">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_AllowanceForLoanLossesTableTextBlock">
    <definition>Allowance for loan losses.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValue">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_AdditionalPaidInCapital">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationCost">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_AvailableForSaleSecuritiesTextBlock">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_WeightedAverageRateTotalBorrowedFunds">
    <definition>Weighted Average Rate Total borrowed funds.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="dei_DocumentPeriodEndDate">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="dei_EntityCentralIndexKey">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_NoninterestExpense">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ProceedsFromStockOptionsExercised">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ProceedsFromShortTermDebt">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_SecuritiesSoldUnderAgreementsToRepurchaseToOtherBrokers">
    <definition>Securities Sold Under Agreements To Repurchase To Other Brokers.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_NoninterestIncome">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_BorrowedFundsFairValueDisclosure">
    <definition>Borrowed Funds Fair Value Disclosure.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_TotalFirstMortgageLoans">
    <definition>Total first mortgage loans.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_DefinedBenefitPlanInterestCost">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionForfeituresInPeriodWeightedAverageExercisePrice">
    <definition>Share Based Compensation Arrangement By Share Based Payment Award Option Forfeitures In Period Weighted Average Exercise Price.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_FairValueDisclosuresTextBlock">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_TotalMortgageBackedSecuritiesLessThanTwelveMonthsUnrealizedLosses">
    <definition>Total Mortgage backed Securities Less Than Twelve Months Unrealized Losses.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_LoanIndividuallyEvaluatedForImpairment">
    <definition>Loan individually evaluated for impairment.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_StockholdersEquity">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_MortgageBackedSecuritiesHeldToMaturity">
    <definition>Mortgage backed Securities Held To Maturity</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_WriteDownsOnForeclosedRealEstate">
    <definition>Write downs on foreclosed real estate.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_CreditRiskProfileBasedOnPaymentActivityLoan">
    <definition>Credit Risk Profile Based On Payment Activity Loan.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_AllowanceForLoanAndLeaseLossesRecoveriesOfBadDebts">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_AvailableForSaleSecuritiesFairValue">
    <definition>Available for Sale Securities Fair Value.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_AllowanceForLoanLossesChargeOffs">
    <definition>Allowance For Loan Losses Charge Offs.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_NetIncomeLoss">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_InterestIncomeExpenseNet">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_CommercialAndConstructionLoansEvaluatedForImpairment">
    <definition>Commercial and construction loans evaluated for impairment.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_FairValueOfFinancialInstrumentsPolicyTextBlock">
    <definition>Describes an entity's accounting policy for determining the fair value of its financial instruments.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_PercentageOfHousePricesDeclinedInMetropolitanArea">
    <definition>Percentage of House Prices declined in metropolitan area.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_NumberOfCommonStockThatHadNotBeenAwarded">
    <definition>Number of common stock that had not been awarded.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_LoansAndLeasesReceivableImpairedAllowanceForLoanLosses">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_TreasuryStockValue">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_CreditRiskProfileByInternallyAssignedGradePassLoan">
    <definition>Credit Risk Profile By Internally Assigned Grade Pass Loan.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_CashAndDueFromBanksFairValueDisclosure">
    <definition>Cash And Due From Banks Fair Value Disclosure.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_GainsLossesOnExtinguishmentOfDebt">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_AllowanceForLoansAndLeasesReceivableGainLossOnSalesPreviousChargeOff">
    <definition>Allowance for loans and leases receivable gain loss on sales previous charge off.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_LoansAndLeasesReceivableDescription">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_LoanPortfolioByCreditQualityIndicatorTableTextBlock">
    <definition>Loan portfolio by credit quality indicator.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ScheduleOfTreasuryStockByClassTextBlock">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_LoansAndLeasesReceivableGainLossOnSalesNet">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_CreditRiskProfileByInternallyAssignedGradeDoubtfulLoan">
    <definition>Credit Risk Profile By Internally Assigned Grade Doubtful Loan.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_CommonStockDividendPerShareDeclared">
    <definition>Common stock dividend per share, declared.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_TotalMortgageBackedSecuritiesLessThanTwelveMonthsFairValue">
    <definition>Total Mortgage backed Securities Less Than Twelve Months Fair Value.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_AvailableForSaleSecuritiesAmortizedCost">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_AccruedInvestmentIncomeReceivable">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_TreasuryStockDeferredEmployeeStockOwnershipPlan">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_PercentageOfTotalNonPerformingLoans">
    <definition>Percentage of Total Non Performing Loans.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_TotalMortgageBackedSecuritiesTwelveMonthsOrLongerUnrealizedLosses">
    <definition>Total Mortgage backed Securities Twelve Months or Longer Unrealized Losses.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_WeightedAverageRateSecuritiesSoldUnderAgreementsToRepurchaseOtherBrokers">
    <definition>Weighted Average Rate Securities sold under agreements to repurchase other brokers.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ProceedsFromPrincipalRepaymentsOnLoansAndLeasesHeldForInvestment">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_AvailableForSaleSecurities">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_PaymentsToAcquireMortgageBackedSecuritiesMBSCategorizedAsHeldToMaturity">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_LiabilitiesAndStockholdersEquity">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_PercentageOfAverageLtvRatioOfNonPerformingLoans">
    <definition>Percentage of Average Ltv Ratio of Non Performing Loans.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_PrincipalTransactionsRevenue">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_EarningsPerShareTextBlock">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_BorrowedFundsAverageOutstandingAmount">
    <definition>Borrowed Funds Average Outstanding Amount.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_RemainingNumberOfSharesToBePurchasedUnderExistingStockRepurchasePrograms">
    <definition>Remaining Number of Shares to be Purchased Under existing Stock repurchase Programs.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_InvestmentInFederalHomeLoanBankStockFairValueDisclosure">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_OtherAssets">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="dei_DocumentFiscalYearFocus">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_CommonStockValue">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_OccupancyNet">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_MarketableSecurities">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_InitialTermsOfInterestOnlyLoansOriginatingAsAdjustableRateMortgageLoans">
    <definition>Initial terms of interest-only loans originating as adjustable-rate mortgage loans.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_CreditRiskProfileByInternallyAssignedGradeSpecialMentionLoan">
    <definition>Credit Risk Profile By Internally Assigned Grade Special Mention Loan.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTextBlock">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_LoansAndLeasesReceivableImpairedAverageRecordedInvestment">
    <definition>Loans And Leases Receivable Impaired Average Recorded Investment.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_ImpairedLoansFairValueDisclosure">
    <definition>Impaired Loans Fair Value Disclosure.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_TotalMortgageBackedSecuritiesFairValue">
    <definition>Total Mortgage-backed Securities, Fair Value.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_InterestBearingDepositLiabilities">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_MaximumLoanAmountForLimitedDocumentationLoans">
    <definition>Maximum loan amount for limited documentation loans.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_WriteDownsAndNetLossOnSaleForeclosedRealEstate">
    <definition>Write downs and net loss on sale related to foreclosed real estate that were charged to non-interest expense.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="dei_EntityPublicFloat">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_FederalHomeLoanBankStock">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_FairValueAndUnrealizedLossesOfSecuritiesTableTextBlock">
    <definition>Fair value and unrealized losses of securities.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_EstimatedFairValueOfHeldToMaturitiesSecurities">
    <definition>Estimated fair value of held to maturities securities.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_FederalFundsSoldAndOtherOvernightDeposits">
    <definition>Federal Funds Sold and Other Overnight Deposits.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ProvisionForLoanLeaseAndOtherLosses">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_TotalMortgageBackedSecuritiesUnrealizedLosses">
    <definition>Total Mortgage-backed Securities, Unrealized Losses.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_ChargeOffsToAllowanceForLoanLossesRelatedToLoansTransferredToForeclosedRealEstate">
    <definition>Charge-offs to allowance for loan losses related to loans transferred to foreclosed real estate.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_CommonStockParOrStatedValuePerShare">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_NatureOfOperations">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_Goodwill">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_LoansAndLeasesReceivableImpairedTroubledDebtRestructuringAmount">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="dei_CurrentFiscalYearEndDate">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_RevenueFromMortgageBackedSecuritiesAvailableForSale">
    <definition>Mortgage-backed securities available for sale.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_MaximumPercentageOfBorrowingsAvailableUnderLimitedDocumentationLoans">
    <definition>Maximum percentage of borrowings available under limited documentation loans.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_CashCashEquivalentsAndFederalFundsSold">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellFairValueDisclosure">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_AverageBalancesOfBorrowingsAndMaximumAmountOutstandingAtAnyMonthEndTextBlock">
    <definition>Average balances of borrowings and the maximum amount outstanding at any month end.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_EstimatedFairValueOfFinancialInstrumentsTableTextBlock">
    <definition>Estimated fair value of financial instruments.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_HeldToMaturitySecuritiesFairValue">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankWeightedAverageInterestRate">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_LevelOfValuationAssumptionsToDetermineCarryingValueOfAssetsMeasuredAtFairValueOnNonRecurringBasisTableTextBlock">
    <definition>Level of valuation assumptions to determine carrying value of assets measured at fair value on non recurring basis.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_MaximumLoanToValueRatioForMortgageLoansWithNoVerificationOfIncome">
    <definition>Maximum loan-to-value ratio for mortgage loans with no verification of income.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_HeldToMaturitySecurities">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_AvailableForSaleSecuritiesDebtSecurities">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_LoansAndLeasesReceivableNetReportedAmount">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_PercentageOfNonPerformingLoansWithinNewYorkMetropolitanArea">
    <definition>Percentage of non-performing loans within the New York metropolitan area.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_LoansAndLeasesReceivableImpairedAtCarryingValue">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_GeographicDistributionOfLoanPortfolioAsPercentageOfTotalLoansAndNonPerformingLoansAsPercentageOfTotalNonPerformingLoansTableTextBlock">
    <definition>Geographic distribution of loan portfolio as percentage of total loans and non performing loans as percentage of total non performing loans.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_SalesOfMortgageBackedSecuritiesAvailableForSale">
    <definition>Sales of mortgage-backed securities available for sale.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_AvailableForSaleSecuritiesGrossRealizedGains">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_VestingRrpStock">
    <definition>Vesting of RRP stock</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_NumberOfDaysToObtainNewCollateralValuesForLoans">
    <definition>Number of days to obtain new collateral values for loans.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_EarningsPerShareDiluted">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_MortgageLoansOnRealEstatePrincipalAmountOfDelinquentLoans">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_InterestAndFeeIncomeLoansConsumerRealEstate">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_TransferOtherRealEstate">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_GainLossOnInvestments">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_NetCashProvidedByUsedInOperatingActivities">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_IncreaseInAccruedExpensesOtherLiabilities">
    <definition>Increase in accrued expenses and other liabilities</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_InterestAndDividendIncomeSecuritiesHeldToMaturity">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_FairValueMeasurementPolicyTextBlock">
    <definition>Fair value measurement policy.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_FixedInterestRateBorrowedFunds">
    <definition>Fixed interest rate borrowed funds.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_CommonStockSharesAuthorized">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_PercentageOfTotalLoansOutsideNewYorkMetropolitanArea">
    <definition>Percentage of total loans outside the New York metropolitan area.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="dei_AmendmentFlag">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_SummaryOfChangesInOutstandingStockOptionsTableTextBlock">
    <definition>Summary of changes in outstanding stock options.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_CommonStockDividendsPerShareCashPaid">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_LoansAndLeasesReceivablesImpairedInterestIncomeRecognized">
    <definition>Loans And Leases Receivable Impaired Interest Income Recognized.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_AllowanceForLoanLossesRecoveries">
    <definition>Allowance For Loan Losses Recoveries.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_RealEstateAcquiredThroughForeclosure">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_SummaryOfLoansEvaluatedForImpairmentByClassTableTextBlock">
    <definition>Summary of loans evaluated for impairment by class.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ScheduleOfSubsequentEventsTextBlock">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_OtherPayablesToBrokerDealersAndClearingOrganizations">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNetCarryingAmount">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_InterestPaid">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_AllowanceForLoanLossesRelatedToCommercialAndConstructionLoans">
    <definition>Allowance for loan losses related to non-performing commercial and construction loans.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_ServiceChargesAndOtherIncome">
    <definition>Service charges and other income.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_PrincipalCollectionOfMortgageBackedSecuritiesAvailableForSale">
    <definition>Principal collection of mortgage-backed securities available for sale.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_PercentageOfTotalLoans">
    <definition>Percentage of Total Loans.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="dei_DocumentFiscalPeriodFocus">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_DefinedBenefitPlanContributionsByEmployer">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_WeightedAverageRateSecuritiesSoldUnderAgreementsToRepurchaseFederalHomeLoanBank">
    <definition>Weighted Average Rate Securities sold under agreements to repurchase Federal home loan bank.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpectedToVestOutstandingNumber">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_FederalDepositInsuranceCorporationPremiumExpense">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_IncomeTaxesPaid">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ShareBasedCompensation">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ProceedsFromSaleOfForeclosedAssets">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_LoansHeldForSale">
    <definition>Loans held for sale.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_CreditRiskProfileBasedOnPaymentActivityNonPerformingLoan">
    <definition>Credit Risk Profile Based On Payment Activity Non-Performing Loan.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_MarketableSecuritiesTextBlock">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_CashAndDueFromBanks">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerAggregateLosses">
    <definition>Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Aggregate Losses.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_IncreaseDecreaseInDeposits">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_OtherNoninterestExpense">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="dei_DocumentType">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_WeightedAverageWeightOfExtinguishedStructuredBorrowings">
    <definition>Weighted Average Weight of Extinguished Structured Borrowings.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_TotalAmountOfNonPerformingReducedDocumentationLoans">
    <definition>Total amount of non-performing reduced-documentation loans.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_BorrowedFundsTableTextBlock">
    <definition>Borrowed funds.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_RepaymentsOfShortTermDebt">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_LoansAndLeasesReceivableConsumerMortgageCurrent">
    <definition>Loans And Leases Receivable Consumer Mortgage Current.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_LoansReceivableFairValueDisclosure">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_IncomeTaxExpenseBenefit">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_CreditRiskProfileByInternallyAssignedGradeLoan">
    <definition>Credit Risk Profile By Internally Assigned Grade Loan.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_PerformanceBasedStockAwardsVestingPeriod">
    <definition>Performance based stock awards vesting period.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_TotalMortgageBackedSecuritiesTwelveMonthsOrLongerFairValue">
    <definition>Total Mortgage backed Securities Twelve Months or Longer Fair Value.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_BorrowedFunds">
    <definition>Borrowed Funds.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_MortgageBackedSecuritiesAvailableForSaleFairValueDisclosure">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_SecuritiesSoldUnderAgreementsToRepurchaseToFederalHomeLoanBank">
    <definition>Securities Sold Under Agreements To Repurchase To Federal Home Loan Bank.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardExpirationDating">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_FederalHomeLoanBankAdvancesShortTerm">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_PropertyPlantAndEquipmentNet">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateFairValue">
    <definition>ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateFairValue.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_InterestIncomeSecuritiesMortgageBacked">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_PaymentsToAcquireMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ComprehensiveIncomeNetOfTax">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_LoansAndLeasesReceivableDeferredIncome">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ProceedsFromLoanAndLeaseOriginationsAndPrincipalCollections">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_LaborAndRelatedExpense">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_TotalNonAccrualLoans">
    <definition>Total non accrual loans.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_MortgageBackedSecuritiesHeldToMaturityFairValueDisclosure">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_DefinedBenefitPlanServiceCost">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_InterestIncomeFederalFundsSold">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_SecuritiesHeldToMaturityAndAvailableForSaleMaturitiesTableTextBlock">
    <definition>Securities held to maturity and available for sale maturities.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_LongTermDebtPercentageBearingFixedInterestRate">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_CommonStock">
    <definition>Common Stock</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_LoansAndLeasesReceivableConsumerMortgagePastDueTotal">
    <definition>Loans And Leases Receivable Consumer Mortgage Past Due Total.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_MortgageBackedSecuritiesAvailableForSale">
    <definition>Mortgage-backed securities.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_NetCashProvidedByUsedInFinancingActivities">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_PaymentsToAcquireLoansHeldForInvestment">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_CommonStockSharesIssued">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_PeriodInWhichLoansAreConsideredContractuallyPastDue">
    <definition>Period in which loans are considered contractually past due.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_SummaryOfLoansTableTextBlock">
    <definition>Summary of loans.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_AllowanceForLoanLossesNetChargesOffs">
    <definition>Allowance For Loan Losses Net Charges Offs.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_BorrowedFundsMaximumMonthEndOutstandingAmount">
    <definition>Borrowed Funds Maximum Month End Outstanding Amount</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_ProceedsFromSalesOfMortgageBackedSecuritiesAvailableForSale">
    <definition>Proceeds from sales of mortgage backed securities available for sale.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_DividendsCommonStockCash">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_LoanCollectivelyEvaluatedForImpairment">
    <definition>Loan collectively evaluated for impairment.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_InterestAndDividendIncomeOperating">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_PercentageOfWeightedAverageLtvUsingAppraisedValuesAtTimeOfOrigination">
    <definition>Percentage of weighted average LTV using appraised values at the time of origination.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_NetCashProvidedByUsedInInvestingActivities">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResell">
    <definition>Federal Funds Sold And Securities Borrowed Or Purchased Under Agreements To Resell.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="dei_EntityRegistrantName">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfMortgageBackedSecuritiesMBS">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_LoansAndLeasesReceivableImpairedNonperformingAccrualOfInterest">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_CommonStockSharesOutstanding">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_PaymentsToAcquireHeldToMaturitySecurities">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_HeldToMaturitySecuritiesTextBlock">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_InterestAndDividendIncomeSecuritiesAvailableForSale">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_PercentageOfTotalLoansWithinNewYorkMetropolitanArea">
    <definition>Percentage of total loans within the New York metropolitan area.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_GrossRealizedGainsOnSalesAndCallsOfInvestmentSecuritiesAvailableForSale">
    <definition>Gross realized gains on sales and calls of investment securities available for sale.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_InterestExpenseDeposits">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_InterestAndFeeIncomeLoansConsumer">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="dei_EntityWellKnownSeasonedIssuer">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_ProceedsFromFixedRateFixedMaturityBorrowings">
    <definition>Proceeds from fixed-rate, fixed-maturity borrowings.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_ExpenseRelatedToRecognitionAndRetentionPlans">
    <definition>Expense related to recognition and retention plans</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_HeldToMaturitySecuritiesDebtMaturitiesFairValue">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_PercentageOfAverageLtvRatioOfTotalMortgageLoanPortfolio">
    <definition>Percentage of Average Ltv Ratio of Total Mortgage Loan Portfolio.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_IncreaseDecreaseInOtherOperatingAssets">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="dei_EntityVoluntaryFilers">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_RetainedEarningsAccumulatedDeficit">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_TaxExpenseToReclassificationAdjustmentForGains">
    <definition>Tax expense to reclassification adjustment for gains.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_NoninterestBearingDepositLiabilities">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_PercentageOfNonPerformingLoansOutsideNewYorkMetropolitanArea">
    <definition>Percentage of non-performing loans outside the New York metropolitan area.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriod">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_DeferredIncomeTaxExpenseBenefit">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_EarningsPerShareBasic">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_PaymentsToAcquireFederalReserveStock">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="dei_EntityCommonStockSharesOutstanding">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_SummaryOfLoansByClassTableTextBlock">
    <definition>Summary of loans by class.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_SecuritiesSoldUnderAgreementsToRepurchase">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_HeldToMaturitySecuritiesUnrecognizedHoldingGains">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_TotalConsumerAndOtherLoans">
    <definition>Total consumer and other loans.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankAmountOfAdvancesByBranch">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_DefinedBenefitPlanAmortizationOfNetActuarialLoss">
    <definition>Defined Benefit Plan, Amortization of Net actuarial loss.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="hcbk_ProvisionForLoanLossesRelatedToCommercialAndConstructionLoans">
    <definition>Provision for loan losses related to commercial and construction loans.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_FairValueAssetsMeasuredOnRecurringBasisTextBlock">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
  <Element Id="us-gaap_AvailableForSaleSecuritiesFairValueDisclosure">
    <definition>No authoritative reference available.</definition>
    <reference>No authoritative reference available.</reference>
  </Element>
</DefinitionAndReference>
