TRMK


Line plots across dimensions of each concept
Line plots across concepts
Tables

Table of contents



us-gaap:CommonStockValue

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted
dei:LegalEntity, us-gaap:CapitalUnitsByClass
us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets
dei:LegalEntity, us-gaap:CapitalUnitsByClass
us-gaap:CapitalToRiskWeightedAssets
us-gaap:AwardType, us-gaap:PlanName
us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:PlanName

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
us-gaap:StatementBusinessSegments

us-gaap:IncomeTaxExpenseBenefit
us-gaap:StatementBusinessSegments

us-gaap:IncomeTaxesPaid

us-gaap:InsuranceCommissionsAndFees
us-gaap:AdjustmentsForNewAccountingPronouncements
us-gaap:AdjustmentsForNewAccountingPronouncements, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments

us-gaap:InterestExpense

us-gaap:InterestIncomeExpenseNet
us-gaap:StatementBusinessSegments

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss
us-gaap:StatementBusinessSegments
us-gaap:StatementEquityComponents

us-gaap:NonoperatingIncomeExpense
us-gaap:AdjustmentsForNewAccountingPronouncements
us-gaap:AdjustmentsForNewAccountingPronouncements, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:Assets
us-gaap:ConsolidatedEntities
us-gaap:StatementBusinessSegments

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity
us-gaap:ConsolidatedEntities

us-gaap:StockholdersEquity
us-gaap:ConsolidatedEntities
us-gaap:StatementEquityComponents
dei:LegalEntity, us-gaap:CapitalUnitsByClass
us-gaap:TierOneRiskBasedCapital
us-gaap:ConsolidatedEntities
us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:Goodwill
us-gaap:StatementBusinessSegments

us-gaap:IntangibleAssetsNetExcludingGoodwill
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssets
us-gaap:ConsolidatedEntities

us-gaap:TimeDepositMaturitiesYearOne
dei:LegalEntity, us-gaap:StatementGeographical, us-gaap:LongtermDebtType
us-gaap:LongTermDebt

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
us-gaap:ConsolidatedEntities
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementBusinessSegments
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:DeferredTaxLiabilities

us-gaap:UnrecognizedTaxBenefits

trmk:AssumedAveragePrepaymentSpeed

trmk:CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAdoptionOfAccountingStandardAdjustments

trmk:CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAllowanceForLoanLossesAdoptionOfAccountingStandardAdjustments
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
trmk:ChangesInUnrealizedGainsLossesWithinLevel3FinancialInstrumentsCarriedAtFairValueAndStillHeld
us-gaap:LongtermDebtType
trmk:DebtInstrumentUnderwritingDiscount

trmk:DecreaseIncreaseInMemberBankStock
us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation
trmk:DerivativeInstrumentsGainLossClassifiedIntoBankCardIncomeNet
us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation
trmk:DerivativeInstrumentsGainLossClassifiedIntoIncomeNet
us-gaap:LoansInsuredOrGuaranteedByGovernmentAuthorities
trmk:FinanceReceivableLoanDeferredFeesAndCostRecognizedOnSale
us-gaap:LoansInsuredOrGuaranteedByGovernmentAuthorities
trmk:FinanceReceivableLoanSold
us-gaap:MortgageLoansOnRealEstateLoanType
trmk:FinancingReceivableAllowanceForCreditLossesWriteOffsRecoveriesNet

trmk:FinancingReceivablePostModificationRecordedInvestmentRelatedWriteOffs

trmk:ForeclosedAssetsRemeasuredAfterInitialRecognitionFairValue

trmk:GeneralBankingOther
us-gaap:AdjustmentsForNewAccountingPronouncements
us-gaap:AdjustmentsForNewAccountingPronouncements, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments

trmk:IncreaseDecreaseRelatedToTaxWithholdingForShareBasedCompensation
us-gaap:StatementEquityComponents

trmk:InterestAndFeeIncomeOnPaycheckProtectionProgramLoans

trmk:InterestAndFeesOnLHFSAndLHFI

trmk:MortgageBankingIncome
us-gaap:AdjustmentsForNewAccountingPronouncements
us-gaap:AdjustmentsForNewAccountingPronouncements, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments

trmk:MortgageServicingRightsNet
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
trmk:NetPositiveOrNegativeIneffectivenessOnMSRFairValue
us-gaap:MortgageLoansOnRealEstateLoanType, us-gaap:AdjustmentsForNewAccountingPronouncements
trmk:NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantificationAdjustmentOfAllowanceForCreditLossesAcquiredLoans
us-gaap:MortgageLoansOnRealEstateLoanType, us-gaap:AdjustmentsForNewAccountingPronouncements
trmk:NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantificationAllowanceForLoanLossesAcquiredLoansTransfer
us-gaap:MortgageLoansOnRealEstateLoanType, us-gaap:AdjustmentsForNewAccountingPronouncements
trmk:NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantificationLoansHeldForInvestments

trmk:OffBalanceSheetCreditLossLiabilityAdoptionOfAccountingStandardAdjustment
us-gaap:StatementEquityComponents
trmk:OtherComprehensiveIncomeChangeInUnrealizedHoldingGainLossOnSecuritiesTransferredToHeldToMaturityBeforeTaxAndReclassification
us-gaap:StatementEquityComponents
trmk:OtherComprehensiveIncomeChangeInUnrealizedHoldingGainLossOnSecuritiesTransferredToHeldToMaturityTax

trmk:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostRetirementBenefitPlansForNetLossDueToLumpSumSettlementsNetOfTax
us-gaap:StatementEquityComponents
trmk:OtherComprehensiveIncomeLossSecuritiesTransfersToHeldToMaturityNetOfTax

trmk:OtherComprehensiveIncomeLossTransfersFromAvailableForSaleToHeldToMaturitySecuritiesNetOfTax

trmk:PaymentsToAcquireInsuranceBookOfBusiness

trmk:PaymentsUnderFinancingLeaseObligations

trmk:PotentialCreditLossExposure
us-gaap:LongtermDebtType
trmk:ProceedsFromIssuanceOfSubordinatedLongTermDebtGross
us-gaap:LoansInsuredOrGuaranteedByGovernmentAuthorities
trmk:ProceedsFromPaycheckProtectionProgramLoansNet

trmk:ProvisionForLoanLossesExpensedIncludedAcquiredLoans
us-gaap:StatementBusinessSegments

trmk:ProvisionReversalForLoanLeaseAndOtherLosses

trmk:ServiceChargesOnDepositAccounts
us-gaap:AdjustmentsForNewAccountingPronouncements
us-gaap:AdjustmentsForNewAccountingPronouncements, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments

trmk:ServicesAndFees

trmk:TransferOfLongTermFHLBAdvanceToShortTerm

trmk:WealthManagementIncome
us-gaap:AdjustmentsForNewAccountingPronouncements
us-gaap:AdjustmentsForNewAccountingPronouncements, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments

trmk:WriteDownOfAllowanceAfterInitialRecognitionOfForeclosure

trmk:WriteDownsOnRealEstateExcludingCoveredRealEstate

us-gaap:AccretionAmortizationOfDiscountsAndPremiumsInvestments

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationOtherLongtermIncentivePlansRequisiteServicePeriodRecognition
us-gaap:StatementEquityComponents

us-gaap:AssetAtFairValueChangesInFairValueResultingFromChangesInAssumptions

us-gaap:BankOwnedLifeInsuranceIncome

us-gaap:CommonStockDividendsPerShareCashPaid
us-gaap:StatementScenario, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentBasisSpreadOnVariableRate1
us-gaap:RetirementPlanName, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanActuarialGainLoss
us-gaap:RetirementPlanType
us-gaap:RetirementPlanName, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit
us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
us-gaap:RetirementPlanName, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
us-gaap:RetirementPlanName, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanInterestCost
us-gaap:RetirementPlanType
us-gaap:RetirementPlanName, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
us-gaap:RetirementPlanType
us-gaap:RetirementPlanName, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1
us-gaap:RetirementPlanName, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanServiceCost
us-gaap:RetirementPlanType

us-gaap:DepreciationAmortizationAndAccretionNet
us-gaap:StatementBusinessSegments

us-gaap:DividendsCommonStock
us-gaap:StatementEquityComponents

us-gaap:EquipmentExpense
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales

us-gaap:FairValueOptionChangesInFairValueGainLoss1

us-gaap:FinanceLeaseInterestExpense

us-gaap:FinanceLeaseInterestPaymentOnLiability

us-gaap:FinanceLeasePrincipalPayments

us-gaap:FinanceLeaseRightOfUseAssetAmortization
us-gaap:MortgageLoansOnRealEstateLoanType
us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery
us-gaap:MortgageLoansOnRealEstateLoanType, us-gaap:ClassOfFinancingReceivableTypeOfBorrower, us-gaap:Collateral, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:MortgageLoansOnRealEstateLoanType, us-gaap:Collateral, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:MortgageLoansOnRealEstateLoanType, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:MortgageLoansOnRealEstateLoanType
us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs
us-gaap:MortgageLoansOnRealEstateLoanType, us-gaap:ClassOfFinancingReceivableTypeOfBorrower, us-gaap:Collateral, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:MortgageLoansOnRealEstateLoanType, us-gaap:Collateral, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:MortgageLoansOnRealEstateLoanType, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:Collateral, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanRestructuringModification
us-gaap:FinancingReceivableModificationsPostModificationRecordedInvestment2
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanRestructuringModification
us-gaap:LoanRestructuringModification
us-gaap:Collateral, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanRestructuringModification
us-gaap:FinancingReceivableModificationsPreModificationRecordedInvestment2
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanRestructuringModification
us-gaap:LoanRestructuringModification
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanRestructuringModification
us-gaap:FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
us-gaap:LoanRestructuringModification

us-gaap:GainLossOnSaleOfLoansAndLeases

us-gaap:GainLossOnSaleOfMortgageLoans

us-gaap:GainsLossesOnSalesOfInvestmentRealEstate

us-gaap:GainsLossesOnSalesOfOtherRealEstate

us-gaap:IncreaseDecreaseInDeposits

us-gaap:IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet

us-gaap:IncreaseDecreaseInOtherOperatingAssets

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities

us-gaap:InterestAndDividendIncomeOperating

us-gaap:InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio

us-gaap:InterestExpenseDeposits

us-gaap:InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase

us-gaap:InterestExpenseOther

us-gaap:InterestIncomeExpenseAfterProvisionForLoanLoss

us-gaap:InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell

us-gaap:InterestIncomeSecuritiesTaxExempt

us-gaap:InterestIncomeSecuritiesTaxable

us-gaap:LaborAndRelatedExpense

us-gaap:LeaseCost

us-gaap:MortgageLoansOnRealEstateCostOfMortgagesSold

us-gaap:MortgageLoansOnRealEstateForeclosures

us-gaap:NoninterestExpense
us-gaap:StatementBusinessSegments

us-gaap:NoninterestIncome
us-gaap:AdjustmentsForNewAccountingPronouncements
us-gaap:AdjustmentsForNewAccountingPronouncements, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments

us-gaap:OccupancyNet

us-gaap:OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeasePayments

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax

us-gaap:OtherComprehensiveIncomeLossBeforeTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherInterestAndDividendIncome

us-gaap:OtherNoninterestExpense

us-gaap:OtherRevenueExpenseFromRealEstateOperations

us-gaap:PaymentsForFederalHomeLoanBankAdvances

us-gaap:PaymentsForOriginationOfMortgageLoansHeldForSale

us-gaap:PaymentsForProceedsFromLifeInsurancePolicies

us-gaap:PaymentsForProceedsFromLoansAndLeases

us-gaap:PaymentsForSoftware
us-gaap:LongtermDebtType
us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt

us-gaap:PaymentsToAcquireOtherInvestments

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities

us-gaap:ProceedsFromPaymentsForFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResellNet

us-gaap:ProceedsFromRepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths

us-gaap:ProceedsFromSaleOfForeclosedAssets

us-gaap:ProceedsFromSaleOfMortgageLoansHeldForSale

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProvisionForLoanLossesExpensed
us-gaap:MortgageLoansOnRealEstateLoanType
us-gaap:MortgageLoansOnRealEstateLoanType, us-gaap:ClassOfFinancingReceivableTypeOfBorrower, us-gaap:Collateral, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:MortgageLoansOnRealEstateLoanType, us-gaap:Collateral, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:MortgageLoansOnRealEstateLoanType, us-gaap:FinancingReceivablePortfolioSegment

us-gaap:RealEstateOtherAdditions

us-gaap:RealEstateOtherDeductions
us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAociCurrentPeriodTax

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:ServicingAssetAtFairValueAdditions

us-gaap:ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs

us-gaap:ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate

us-gaap:ShortTermLeaseCost

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue
us-gaap:StatementEquityComponents
us-gaap:ShareRepurchaseProgram, us-gaap:SubsequentEventType
us-gaap:StockRepurchasedDuringPeriodShares
us-gaap:ShareRepurchaseProgram, us-gaap:StatementEquityComponents
us-gaap:StockRepurchasedDuringPeriodValue
us-gaap:ShareRepurchaseProgram, us-gaap:SubsequentEventType

us-gaap:SubleaseIncome

us-gaap:VariableLeaseCost

us-gaap:VariableLeasePayment

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

trmk:AccumulatedOtherComprehensiveIncomeLossTransferredSecuritiesAdjustment

trmk:AmortizedCostHeldToMaturityBeforeMortgageBackedSecurities

trmk:AvailableForSaleDebtSecuritiesAmortizedCostBeforeMortgageBackedSecurities

trmk:CapitalConservationBufferRate

trmk:ClassifiedAsTroubledDebtRestructuringLHFI

trmk:CollateralDependentFinancingReceivable

trmk:CollateralDependentFinancingReceivableAllowanceForCreditLosses
dei:LegalEntity, us-gaap:CapitalUnitsByClass
trmk:CommonEquityTierOneRiskBasedCapital
dei:LegalEntity, us-gaap:CapitalUnitsByClass
trmk:CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets
dei:LegalEntity, us-gaap:CapitalUnitsByClass
trmk:CommonEquityTierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
dei:LegalEntity, us-gaap:CapitalUnitsByClass
trmk:CommonEquityTierOneRiskBasedCapitalToRiskWeightedAssets

trmk:CoveredServicedFinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue

trmk:DeferredTaxAssetsFinancingAndOperatingLeaseLiabilities

trmk:DeferredTaxAssetsInterestOnNonAccrualLoans

trmk:DeferredTaxAssetsLoanFees

trmk:DeferredTaxAssetsLoansHeldForSale

trmk:DeferredTaxAssetsRealizedBuiltInLosses

trmk:DeferredTaxAssetsTaxDeferredExpenseLoanPurchaseAccounting

trmk:EstimatedFairValue12MonthsOrMore
us-gaap:FinancialInstrument

trmk:EstimatedFairValueLessThan12Months
us-gaap:FinancialInstrument

trmk:FairValueLessUnpaidPrincipalNet

trmk:FairValueOfAvailableForSaleSecuritiesBeforeMortgageBackSecurities

trmk:FairValueOfHeldToMaturitySecuritiesBeforeMortgageBackSecurities

trmk:FinanceLeaseLiabilityPaymentsDueAfterYearFour

trmk:FinanceLeaseLiabilityPaymentsDueThereafter

trmk:FinancingReceivableCollateralDependentLoans
us-gaap:Collateral
us-gaap:Collateral, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment

trmk:FinancingReceivableDeferredFeesAndCost
us-gaap:LoansInsuredOrGuaranteedByGovernmentAuthorities
us-gaap:LoansInsuredOrGuaranteedByGovernmentAuthorities
trmk:FinancingReceivableLoanOriginatedDeferredFeesAndCost

trmk:FinancingReceivablePostModificationRecordedInvestmentRelatedAllowance
us-gaap:Collateral, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanRestructuringModification
trmk:FinancingReceivableRecordedInvestmentAccruing
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanRestructuringModification
us-gaap:LoanRestructuringModification

trmk:FinancingReceivableRecordedInvestmentNonaccrualWithNoACL
us-gaap:Collateral, us-gaap:FinancingReceivablePortfolioSegment
us-gaap:FinancingReceivablePortfolioSegment

trmk:GrossUnrealizedLosses12MonthsOrMore
us-gaap:FinancialInstrument

trmk:GrossUnrealizedLossesLessThan12Months
us-gaap:FinancialInstrument

trmk:InterestBearingDemandDeposit

trmk:InterestBearingDepositsWithNoStatedMaturity

trmk:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour

trmk:LesseeOperatingLeaseLiabilityPaymentsDueThereafter

trmk:LoansAndLeasesReceivableAccrualOfInterest

trmk:LoansAndLeasesReceivableNetLHFIAndNetAcquiredLoans

trmk:LoansAvailableForRepurchase

trmk:LoansReceivableUnderConcessionRelatedToCOVID19

trmk:MortgageLoanSoldAndServicedForOthers
us-gaap:MortgageLoansOnRealEstateLoanType

trmk:OtherMiscellaneousBorrowings

trmk:PaycheckProtectionProgramLoansAssets
us-gaap:LoansInsuredOrGuaranteedByGovernmentAuthorities

trmk:PledgedCollateralizeDepositsAndSecuritiesSoldUnderRepurchaseAgreements

trmk:PremisesAndEquipmentNet
us-gaap:FinancialInstrument, us-gaap:HedgingDesignation
trmk:TerminationValueOfDerivatives

trmk:TotalEstimatedFairValue
us-gaap:FinancialInstrument

trmk:TotalGrossUnrealizedLosses
us-gaap:FinancialInstrument

trmk:TroubledDebtRestructuringsComprisedOfCreditsWithInterestOnlyPayment

trmk:TroubledDebtRestructuringsComprisedOfCreditsWithInterestOnlyPaymentsAndPaymentConcessions

trmk:TroubledDebtRestructuringsComprisedOfPaymentConcessionsInterestOnlyPaymentsAndCreditsRenewedAtRates

trmk:UnusedCommitmentsOnTroubledDebtRestructurings
us-gaap:FinancialInstrument, us-gaap:HedgingDesignation
trmk:ValuationAdjustment
us-gaap:ConsolidatedEntities
us-gaap:AccruedLiabilitiesCurrentAndNoncurrent

us-gaap:AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

us-gaap:AssetsHeldForSaleNotPartOfDisposalGroup

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost

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us-gaap:SecuritiesSoldUnderAgreementsToRepurchaseAmountOffsetAgainstCollateral

us-gaap:ServicingAssetAtFairValueAmount
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
dei:LegalEntity, us-gaap:StatementGeographical, us-gaap:ShortTermDebtType
us-gaap:ShortTermBorrowings

us-gaap:SubordinatedDebt
us-gaap:ConsolidatedEntities
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:LongtermDebtType
dei:LegalEntity, us-gaap:CapitalUnitsByClass
us-gaap:TierOneLeverageCapital
dei:LegalEntity, us-gaap:CapitalUnitsByClass
us-gaap:TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets
dei:LegalEntity, us-gaap:CapitalUnitsByClass
us-gaap:TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets
dei:LegalEntity, us-gaap:CapitalUnitsByClass
us-gaap:TierOneLeverageCapitalToAverageAssets
dei:LegalEntity, us-gaap:CapitalUnitsByClass
us-gaap:TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets
dei:LegalEntity, us-gaap:CapitalUnitsByClass
us-gaap:TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets

us-gaap:TimeDepositMaturitiesAfterYearFive

us-gaap:TimeDepositMaturitiesYearFive

us-gaap:TimeDepositMaturitiesYearFour

us-gaap:TimeDepositMaturitiesYearThree

us-gaap:TimeDepositMaturitiesYearTwo

us-gaap:TimeDeposits

us-gaap:TimeDepositsAtOrAboveFDICInsuranceLimit

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

us-gaap:UnusedCommitmentsToExtendCredit

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Interest Expense
Balance Sheet
Intangible Assets Net Excluding Goodwill
Assets
Operating Lease Right Of Use Asset
NonCurrent Assets
Intangible Assets Net Excluding Goodwill
PropertyPlantAndEquipmentNet
Property Plant And Equipment Net
Liabilities
Operating Lease Liability
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
Per Share
Common Stock Dividends Per Share Cash Paid
CashFlow
Payments To Acquire Property Plant And Equipment
NetCashProvidedByUsedInOperatingActivities
Share Based Compensation
NetCashProvidedByUsedInInvestingActivities
Payments To Acquire Businesses Net Of Cash Acquired
NetCashProvidedByUsedInFinancingActivities
Payments For Repurchase Of Common Stock
Shares
Weighted Average Number Of Shares Outstanding Basic
DividendsAndRepurchase
Dividends Common Stock
NonoperatingIncomeExpense
Nonoperating Income Expense
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Remainder Of Fiscal Year
BanksAndOrInsurance
Securities Sold Under Agreements To Repurchase
AssetsBanks
Federal Funds Sold And Securities Purchased Under Agreements To Resell
LiabilitiesBanks
Deposits

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:CommonStockValue ▁▂▂▂▂▂▃▃▃▄▅███████████████████▇▇▇▇▄▄▄▄▃▃▃▃▃13.07913.20913.21513.21513.21413.20913.37613.3913.41813.49913.71714.08914.08914.12114.11514.11414.11414.11214.09114.0914.0914.09314.07614.07614.07614.07614.0614.05114.05114.05114.03813.99813.99413.99213.50613.49613.49613.49413.36413.35913.35913.33313.318NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▁█63.4163.563NA63.58263.55563.914NA64.51564.81565.379NA67.79667.90767.961NA67.91667.89367.846NA67.79367.7767.747NA67.70767.68567.639NA67.60967.58367.55NA67.38267.34466.15NA64.99364.93964.477NA64.3164.28164.182NA64.06764.054NA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ▁█63.21563.396NA63.42363.41663.757NA64.35964.67865.239NA67.62167.75867.809NA67.74267.73667.687NA67.62567.6267.61NA67.55767.55767.526NA67.4467.4467.41NA67.17767.16365.983NA64.77864.77264.297NA64.11964.07263.95NA63.88663.873NA
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount ▁█0.0010.074NA0.060.0110.052NA0.0070.0230.055NA0.0080.0250.054NA0.0060.0230.043NA0.00.0010.0NA0.0010.00.0NA0.00.0210.117NA0.270.3740.696NA0.501NA1.035NA1.212NA1.29NA1.327NANA
us-gaap:EarningsPerShareBasic ▇█▇█▄▂▄▆▆▄▅▄▅▄▁▄▂▄▃▄▂▃▃▃▃▃▃▄▄▃▃▄▄▃▃▄▃▄▃▃▄▃▃▃▃▃0.760.820.810.860.510.350.530.640.650.510.55000000000000030.540.590.540.229999999999999980.510.350.460.420000000000000150.460.320.40.40999999999999990.420.450.430.410000000000000140.50.490.430.419999999999999930.490.460.380.420000000000000150.460.450.470.37999999999999990.420.490.380.400000000000000130.40.410.37
us-gaap:EarningsPerShareDiluted ▇█▇█▄▂▄▆▆▄▄▄▅▄▁▄▂▃▃▃▂▃▃▃▃▃▃▄▄▃▃▄▃▃▃▃▃▄▂▃▄▂▃▃▃▂0.760.820.79999999999999980.860.510.350.51999999999999980.640.650.510.540.540.590.540.240.510.350.460.430000000000000160.460.320.40.40999999999999990.420.450.430.420000000000000150.50.490.430.419999999999999930.490.460.380.430000000000000160.460.450.470.36999999999999990.420.490.370.39000000000000010.40.410.37
 us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets dei:LegalEntity,us-gaap:CapitalUnitsByClass trmk:TrustmarkCorporation,trmk:Tier1CapitalToRiskWeightedAssets████▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁1.225e-051.22e-051.211e-051.186e-051.194e-071.188e-071.248e-071.2379999999999998e-071.231e-071.245e-071.233e-071.276e-071.258e-071.262e-071.233e-071.237e-071.23e-071.279e-071.276e-071.297e-071.2939999999999998e-071.3039999999999998e-071.321e-071.366e-071.397e-07NA1.3469999999999998e-07NANANANANANANANANANANANANANANANANANANA
 us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets dei:LegalEntity,us-gaap:CapitalUnitsByClass trmk:TrustmarkNationalBank,trmk:Tier1CapitalToRiskWeightedAssets████▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁1.217e-051.187e-051.175e-051.1570000000000001e-051.173e-071.1690000000000001e-071.23e-071.22e-071.214e-071.227e-071.214e-071.259e-071.241e-071.246e-071.216e-071.22e-071.213e-071.2629999999999999e-071.258e-071.278e-071.275e-071.285e-071.3e-071.3439999999999999e-071.374e-07NA1.324e-07NANANANANANANANANANANANANANANANANANANA
 us-gaap:CapitalToRiskWeightedAssets dei:LegalEntity,us-gaap:CapitalUnitsByClass trmk:TrustmarkCorporation,trmk:CapitalToRiskWeightedAssets███▇▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁1.4099999999999999e-051.407e-051.4119999999999999e-051.288e-051.3e-071.278e-071.325e-071.315e-071.307e-071.321e-071.307e-071.361e-071.339e-071.3439999999999999e-071.31e-071.3189999999999998e-071.311e-071.361e-071.359e-071.3819999999999998e-071.3819999999999998e-071.392e-071.4069999999999998e-07NANANA1.456e-07NANANANANANANANANANANANANANANANANANANA
 us-gaap:CapitalToRiskWeightedAssets dei:LegalEntity,us-gaap:CapitalUnitsByClass trmk:TrustmarkNationalBank,trmk:CapitalToRiskWeightedAssets████▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁1.3019999999999999e-051.273e-051.273e-051.26e-051.28e-071.26e-071.307e-071.297e-071.289e-071.303e-071.289e-071.3439999999999999e-071.3230000000000001e-071.328e-071.293e-071.3020000000000001e-071.2939999999999998e-071.3450000000000002e-071.341e-071.363e-071.363e-071.3730000000000002e-071.386e-07NANANA1.4319999999999999e-07NANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType,us-gaap:PlanName trmk:PerformanceAwardsAndUnits,trmk:StockAndIncentiveCompensationPlan█▁0.324-0.118NA0.4170.456-0.513NA0.4810.4810.081NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType,us-gaap:PlanName trmk:TimeVestedAwardsAndUnits,trmk:StockAndIncentiveCompensationPlan▁█0.892.299NA0.8220.8181.907NA0.7910.7980.921NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AllocatedShareBasedCompensationExpense us-gaap:PlanName trmk:StockAndIncentiveCompensationPlan▃█▄▃▃▄▃▃▃▂▁▃▂▁▂▂▃▂▂▂▁▂1.2142.1811.291.2391.2741.3941.2341.2721.2791.0020.8481.1581.0790.7851.0591.0761.2210.9530.9430.9410.8390.961NANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ComprehensiveIncomeNetOfTax ▇▆▆▇▅▇▅▆█▇█▅▅▄▂▅▆▅▂▅▅▇▃▆▄▆▄▅▆▅▆▄▁▅▄▅▅▅▃▆▇▄▂▅▅▅53.84636.50744.48249.55935.01753.51631.20444.99358.23948.10360.95530.04633.9617.1933.86835.26338.53134.0410.226.07130.91250.82411.04441.04319.06141.9819.95429.78140.83734.23736.53416.896-10.67627.1823.85733.49831.46628.7367.77342.946.89923.8164.08630.10427.10129.543
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments ▇▇██▃▁▄▅▅▃▄▄▅▄▄▄▂▄▃▄▁▃▃▃▄▃▃▅▄▃▃▄▄▃▃▄▄▄▂▃▅▃▃▃▃▃56.61861.23963.10164.18937.66724.82539.48347.05148.6738.58942.86740.64746.02942.3140.88743.28729.76240.40937.32539.39727.22235.5236.42836.24940.36838.40736.72844.72542.53238.10633.47544.3742.14534.00736.37941.22139.92741.85632.13736.49344.79835.19134.95334.86438.60734.331
us-gaap:IncomeTaxExpenseBenefit ▃▃▄▃▂▁▂▂▂▂▂▂▂▂█▃▂▃▃▃▂▃▃▃▃▃▃▄▃▃▂▄▄▃▃▄▃▄▃▃▄▄▃▃▄▄8.6379.27711.8849.7495.5172.6075.5376.0166.535.256.1794.3946.2165.4825.1198.7085.7279.1618.4028.4155.7198.5178.577.8199.7669.2598.65511.1369.6359.1035.43611.33611.0249.1418.66911.31710.57811.5367.8799.52513.19611.1789.7939.00412.44610.876
us-gaap:IncomeTaxesPaid NANA10.43712.902NANA7.53211.941NANA0.8067.009NANA5.9480.2980.3470.7780.195.8918.380.3761.035.0059.9350.3510.5050.2912.5650.350.30.313.440.4820.28318.26818.8180.46515.230.2321.7090.43514.33715.076NANA
us-gaap:InsuranceCommissionsAndFees ██▆▇▇▇▅▆▇▆▅▆▆▅▄▆▅▄▄▅▅▄▄▅▅▄▃▄▃▃▂▃▃▂▂▃▂▂▁▃▂▁▁▃▂▂12.21712.44510.19611.56211.86811.559.36411.07211.08910.8719.56210.76510.7359.4198.81310.3989.7459.2128.45910.0749.6388.5938.5019.9069.4018.6167.8319.248.38.0977.3438.2278.0147.2426.8877.5337.1796.6066.0767.5166.8626.5126.2247.7466.8846.837
us-gaap:InterestExpense ▂▂▂▂▃▆▇██▇▇▆▅▄▄▄▃▂▂▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▂▃▃▃▄▄▄▄▅▅6.5027.1367.5468.1579.65316.44219.04621.76222.41220.68319.75617.78715.10213.54712.95512.2029.7727.3166.5136.2225.9545.8585.2615.1634.9975.0395.0765.2115.4555.8046.2426.4656.6726.486.5477.2187.9668.9389.34110.51311.57211.6112.29713.53414.64215.722
us-gaap:InterestIncomeExpenseNet █▅▆▆▅▅▅▆▆▅▅▆▅▅▅▅▅▄▄▄▄▃▄▄▄▄▄▆▅▃▅▄▄▂▁▂▂▂▂▂▂▂▂▂▂▂119.423102.336111.378106.207105.0103.952105.591108.466107.724104.808105.18106.983105.164102.093104.044103.912102.00497.5998.85297.56496.37794.7499.81897.60696.94997.39298.915106.229105.28894.904101.85598.42999.22888.97582.31985.27986.44886.94489.05885.6887.8386.37588.55287.56788.48687.418
us-gaap:InterestPaidNet ▁▁▂▂▃▅▇██▇▇▆▅▄▄▃6.5687.2477.7228.43810.00116.80719.11621.87722.50320.50119.85217.46115.14313.90213.20611.673NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▇█▇█▄▂▄▆▆▄▅▅▅▅▁▄▂▄▃▄▂▃▃▃▄▃▃▄▄▃▃▄▄▃▃▄▃▄▃▃▄▂▃▃▃▂47.98151.96251.21754.4432.1522.21833.94641.03542.1433.33936.68836.25339.81336.8315.76834.57924.03531.24828.92330.98221.50327.00327.85828.4330.60229.14828.07333.58932.89729.00328.03933.03431.12124.86627.7129.90429.34930.3224.25826.96831.60224.01325.1625.8626.16123.455
us-gaap:NonoperatingIncomeExpense ▄▄▅▄▄▅▆▄▄▄▄▄▅▃▅▆█▄▄▃▄▃▂▄▂▁2.0012.092.5381.6012.2132.3073.4511.9892.132.2391.9041.3582.4151.0592.6813.745.6371.8912.0921.2741.3720.888-0.4661.47-0.433-1.055NANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▅▃▄▄▅█▄▅▆▆▇▄▄▂▃▄▆▅▁▄▅▇▂▆▃▆5.865-15.455-6.735-4.8812.86731.298-2.7423.95816.09914.76424.267-6.207-5.853-19.637-11.90.68414.4962.793-28.723-4.9119.40923.821-16.81412.613-11.54112.832NANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:Assets ██▇▇▇▅▅▅▅▅▄▅▅▅▅▅▅▅▅▄▄▄▄▄▃▃▄▃▃▃▃▃▃▃▁▁▁▁▁▁▁▁▁17098.13216878.31316551.8415558.16215692.07914019.82913497.87713584.78613548.95813478.01713286.4613439.81213525.26513463.43913797.95313884.65513909.13813490.36113352.33313161.53813030.34912775.19612678.89612390.27612182.44812179.16412250.63312096.31612119.99612057.05411790.38311805.19711863.31211850.5159828.6679872.1599890.8469931.5939727.0079705.9219698.4519514.4629553.902NANANA
us-gaap:Liabilities ██▇▇▇▅▅▅▅▅▄▅▅▅▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▃▃▃▃▁▁▁▁▁▁▁▁▁15318.82315118.60814810.72313848.12114018.13512367.4311837.17511939.42411930.40811890.98911695.00711840.20811941.19311893.30212226.25212302.1212347.2211952.411832.12511626.77711506.88211266.9411205.83910913.5210732.03910733.0810830.69310681.21810720.10510683.15910435.4310475.68310536.49310497.5698541.2988594.1448632.3518690.0738511.978484.3158505.6818354.2338404.418NANANA
us-gaap:LiabilitiesAndStockholdersEquity ██▇▇▇▅▅▅▅▅▄▅▅▅▅▅▅▅▅▄▄▄▄▄▃▃▄▃▃▃▃▃▃▃▁▁▁▁▁▁▁▁▁17098.13216878.31316551.8415558.16215692.07914019.82913497.87713584.78613548.95813478.01713286.4613439.81213525.26513463.43913797.95313884.65513909.13813490.36113352.33313161.53813030.34912775.19612678.89612390.27612182.44812179.16412250.63312096.31612119.99612057.05411790.38311805.19711863.31211850.5159828.6679872.1599890.8469931.5939727.0079705.9219698.4519514.4629553.902NANANA
us-gaap:StockholdersEquity ███▇▇▇▇▇▆▆▆▆▆▆▆▆▆▅▅▅▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁1779.3091759.7051741.1171710.0411673.9441652.3991660.7021645.3621618.551587.0281591.4531599.6041584.0721570.1371571.7011582.5351561.9181537.9611520.2081534.7611523.4671508.2561473.0571476.7561450.4091446.0841419.941415.0981399.8911373.8951354.9531329.5141326.8191352.9461287.3691278.0151258.4951241.521215.0371221.6061192.771160.2291149.4841158.7921142.381128.529
 us-gaap:TierOneRiskBasedCapital dei:LegalEntity,us-gaap:CapitalUnitsByClass trmk:TrustmarkCorporation,trmk:Tier1CapitalToRiskWeightedAssets██▇▆▅▅▅▅▄▄▄▅▄▄▄▃▃▃▃▂▂▂▂▁▁1501.1021487.0771455.8441418.8891377.3781357.0831372.6681353.8081329.3531313.0961331.5381362.8591337.5711318.8281303.2381298.6891278.7141282.9191269.661254.4531237.1031230.0191220.5351206.5741191.523NA1129.63NANANANANANANANANANANANANANANANANANANA
 us-gaap:TierOneRiskBasedCapital dei:LegalEntity,us-gaap:CapitalUnitsByClass trmk:TrustmarkNationalBank,trmk:Tier1CapitalToRiskWeightedAssets█▇▆▆▅▅▅▅▄▄▄▅▄▄▃▃▃▃▃▂▂▂▂▁▁1491.0661446.3951412.0151384.4361353.7271336.081352.8931333.6921309.9621294.2121311.5481344.0291319.5431301.381284.5751280.1131260.8081266.3091251.3291235.9231218.9431211.9421201.1131186.8751172.108NA1108.399NANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:ConsolidatedEntities srt:ParentCompanyNANA158.275NANANA15.707NANANA16.437NANANA16.885NANANA16.713NANANA17.32NANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:PropertyPlantAndEquipmentGross NANA449.815NANANA437.073NANANA425.343NANANA415.778NANANA418.563NANANA426.166NANANA418.854NANANA412.741NANANA346.736NANANA322.992NANANA311.872NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:BuildingAndBuildingImprovementsNANA216.65NANANA210.362NANANA202.912NANANA197.372NANANA195.296NANANA200.475NANANA198.739NANANA199.976NANANA163.638NANANA155.506NANANA151.69NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:FurnitureAndFixturesNANA180.976NANANA174.257NANANA169.652NANANA166.071NANANA172.17NANANA168.357NANANA162.321NANANA154.633NANANA142.771NANANA127.762NANANA120.529NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:LandNANA52.189NANANA52.454NANANA52.779NANANA52.335NANANA51.097NANANA57.334NANANA57.794NANANA58.132NANANA40.327NANANA39.724NANANA39.653NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment NANA263.147NANANA256.608NANANA247.16NANANA237.425NANANA239.319NANANA230.51NANANA218.073NANANA205.458NANANA191.895NANANA180.41NANANA169.583NANANA
us-gaap:PropertyPlantAndEquipmentNet ▇▇▆▆▆▆▆▆▆▆▅▅▅▅▅▅▅▅▅▆▆▆▆▇▇▇▇▇▇▇████▂▂▃▃▁▁▁▁▁200.97199.098194.278192.722190.567190.179189.791188.423189.82189.743178.668178.739177.686178.584179.339181.312182.315183.311184.987190.93192.732194.453195.656196.558196.22198.039200.781200.474201.639203.771207.283208.837210.845210.789154.841155.467156.089156.158142.582141.639140.64141.524142.289NANANA
us-gaap:Goodwill █████████████████▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▁▁▁▁▁▁▁▁▁384.237384.237385.27385.27385.27381.717379.627379.627379.627379.627379.627379.627379.627379.627379.627379.627379.627366.156366.156366.156366.156366.156366.156365.5365.5365.5365.5365.5365.5365.5372.851372.463368.315366.366291.104291.104291.104291.104291.104291.104291.104291.104291.104NANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▁▁▁▁▁▁▁▁▁▂▂▂▂▂▃▃▃▃▃▄▄▄▄▅▅▅▅▆▆▆▇▇██▃▃▃▃▂▂▃▃▃6.176.7247.398.1428.8957.5377.3438.3459.10110.09211.11212.39113.67714.96316.3617.88319.42219.11720.6822.36624.05825.75127.54630.12932.04231.2533.23435.35737.50639.69741.9944.42446.88949.36117.30618.32719.35618.82114.07614.86115.65115.53216.306NANANA
us-gaap:DeferredTaxAssetsLiabilitiesNet NANA50.613NANANA31.658NANANA39.902NANANA52.975NANANA80.072NANANA100.957NANANA117.434NANANA130.477NANANA55.002NANANANANANANANANANANA
us-gaap:OperatingLeaseRightOfUseAsset ▇█▃▂▁▃▃▇▆█33.20133.70430.90130.50829.81930.83931.18233.1832.76233.9NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:TimeDepositMaturitiesYearOne NANA1152.489NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:LongTermDebt dei:LegalEntity,us-gaap:StatementGeographical,us-gaap:LongtermDebtType trmk:BancTrust,trmk:Atlanta,us-gaap:FederalHomeLoanBankAdvancesNANA0.116NANANA0.811NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo █▇▃▁4.674.6194.4564.378NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree ██▂▁4.7134.7314.3424.265NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour ██▂▁4.7524.7524.4494.371NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA4.464NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:StockholdersEquity ███▇▇▇▇▇▆▆▆▆▆▆▆▆▆▅▅▅▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁1779.3091759.7051741.1171710.0411673.9441652.3991660.7021645.3621618.551587.0281591.4531599.6041584.0721570.1371571.7011582.5351561.9181537.9611520.2081534.7611523.4671508.2561473.0571476.7561450.4091446.0841419.941415.0981399.8911373.8951354.9531329.5141326.8191352.9461287.3691278.0151258.4951241.521215.0371221.6061192.771160.2291149.4841158.7921142.381128.529
us-gaap:CommonStockValue ▁▂▂▂▂▂▃▃▃▄▅███████████████████▇▇▇▇▄▄▄▄▃▃▃▃▃13.07913.20913.21513.21513.21413.20913.37613.3913.41813.49913.71714.08914.08914.12114.11514.11414.11414.11214.09114.0914.0914.09314.07614.07614.07614.07614.0614.05114.05114.05114.03813.99813.99413.99213.50613.49613.49613.49413.36413.35913.35913.33313.318NANANA
us-gaap:AdditionalPaidInCapitalCommonStock ▁▂▂▂▂▂▃▃▃▄▅████████████210.42229.892233.12231.836230.613229.403256.4257.37260.619272.268309.545362.868361.715366.021369.124368.131367.075365.951366.563365.553364.516363.979361.467NANANA356.244NANANANANANANANANANANANANANANANANANANA
us-gaap:RetainedEarningsAccumulatedDeficit ██▇▇▆▆▆▆▆▆▅▅▅▅▄▄▄▄▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁1566.4511533.111495.8331459.3061419.5521402.0891414.5261395.461369.3291342.1761323.871302.5931282.0071257.8811228.1871228.1151209.2381200.9031185.3521172.1931157.0251151.7571142.9081130.7661117.9931103.0771092.121081.1611063.2011045.9391034.9661023.9831006.554991.012984.563973.182958.322944.101932.526923.891911.797898.222890.917NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▆▅▇▇▇▇▅▅▅▄▃▁▁▂▄▅▅▄▃▅▆▅▃▅▄▅▄▄▄▄▄▃▄▇▇▇▇▇▇█▇▆▆▇▇-10.641-16.506-1.0515.68410.5657.698-23.6-20.858-24.816-40.915-55.679-79.946-73.739-67.886-39.725-27.825-28.509-43.005-45.798-17.075-12.164-21.573-45.394-28.58-41.193-29.652-42.484-34.365-30.557-38.497-43.731-52.226-36.0885.7093.3957.2483.6541.5373.12119.6063.674-11.623-11.4269.6485.404NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▇▆▇▂▇▁█▃▃▄▇▆▄▅▆▆104.77583.34394.373-44.57994.715-79.163134.447-14.63-18.24214.87297.48564.31119.62957.77370.96673.656NANANANANANANANANANANA68.43633.75157.3954.15745.777116.117-10.63490.818-4.198-30.81136.31640.375-3.15336.35100.01779.758-3.25927.94102.339
us-gaap:NetCashProvidedByUsedInInvestingActivities ▇▃█▅▁▅▆▇▆▆▆▇▆█▆▆179.331-567.776352.459-203.082-1039.539-327.553-115.123103.741-39.821-23.03643.259103.07129.334263.12311.73336.969NANANANANANANANANANANA-89.933-155.208-232.77835.79567.209-70.784-145.421-25.72626.175169.54223.9-72.08771.691108.148-12.468-350.38-98.52371.722131.953
us-gaap:NetCashProvidedByUsedInFinancingActivities ▃▃▆▁█▄▂▂▂▃▁▂▂▁▂▂208.577306.47941.084-214.3911567.123452.141-146.671-7.2618.429112.65-223.654-122.0322.88-341.388-97.054-78.831NANANANANANANANANANANA-63.96620.598253.441-29.886-78.82313.303167.462-42.791-97.524-67.496-49.341-10.795-45.259-115.732-56.006236.03111.553-105.27-255.838
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▅▂█▁▅▃▂▃▃▃▂492.683-177.9631387.916-462.052622.29945.425-127.34781.85-49.634104.486-82.91NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:DeferredIncomeTaxExpenseBenefit ▅▆▄▄▂▂▄▃▃▄▅▄▄▅█▄▄▅▅▇▃▄▅▄▅▅▄▅▆▄▅▃▇▄▅▁▄▄▃▂▅▄▅▃▂▄3.59.00.8-1.1-7.9-11.62.52-2.0-3.0-1.46.1281.6120.73.321.2680.60.33.95.115.0-2.2250.1253.21.95.0754.6251.33.411.62.47.018-2.82614.8142.1574.583-14.89-0.0251.88-2.948-11.084.7-0.3555.071-3.59-7.705-0.165
us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet ▄▅▄▄▄▃▄▄▄▄▄▄▄▅▄▄▄▄▅▄▄▄▄▄▅▄▄▄▄▄▄▅▄▄▇▄▄▄█▂▅▄█▁▅▅-6.76913.642.668-1.92-3.328-25.1193.036-8.376-7.692-10.806-7.2520.791.1168.362-0.15-3.692-2.498-0.0912.5951.493-9.032-7.0781.934-7.345.569-4.554-6.7850.599-5.992-4.1590.1334.790.6971.90339.545-4.723-9.332-2.99355.991-37.22110.4631.4861.965-54.26217.1214.263
us-gaap:NetCashProvidedByUsedInOperatingActivities ▇▆▇▂▇▁█▃▃▄▇▆▄▅▆▆104.77583.34394.373-44.57994.715-79.163134.447-14.63-18.24214.87297.48564.31119.62957.77370.96673.656NANANANANANANANANANANA68.43633.75157.3954.15745.777116.117-10.63490.818-4.198-30.81136.31640.375-3.15336.35100.01779.758-3.25927.94102.339
us-gaap:NetIncomeLoss ▇█▇█▄▂▄▆▆▄▅▅▅▅▁▄▂▄▃▄▂▃▃▃▄▃▃▄▄▃▃▄▄▃▃▄▃▄▃▃▄▂▃▃▃▂47.98151.96251.21754.4432.1522.21833.94641.03542.1433.33936.68836.25339.81336.8315.76834.57924.03531.24828.92330.98221.50327.00327.85828.4330.60229.14828.07333.58932.89729.00328.03933.03431.12124.86627.7129.90429.34930.3224.25826.96831.60224.01325.1625.8626.16123.455
us-gaap:ShareBasedCompensation ▁█1.2142.181NANA1.2741.394NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▇▃█▅▁▅▆▇▆▆▆▇▆█▆▆179.331-567.776352.459-203.082-1039.539-327.553-115.123103.741-39.821-23.03643.259103.07129.334263.12311.73336.969NANANANANANANANANANANA-89.933-155.208-232.77835.79567.209-70.784-145.421-25.72626.175169.54223.9-72.08771.691108.148-12.468-350.38-98.52371.722131.953
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▆█▇▇▄▄▆▃▄▄▄▅▃▃▂▃▂▆▃▂▂▃▃▄▃▃▄▂▄▂▃▅▅▂▅▃▃▇▄▄▂▃▂▃▁▁5.7688.1526.9436.9964.4844.1545.9922.9633.9654.4073.7744.6463.3622.8622.2562.8211.8236.3193.2791.7942.3212.8142.8233.8723.2722.793.8342.4233.7952.3373.1275.35.3342.2284.7062.6172.946.9093.7913.9161.992.4871.7962.671.3190.935
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▃▃▆▁█▄▂▂▂▃▁▂▂▁▂▂208.577306.47941.084-214.3911567.123452.141-146.671-7.2618.429112.65-223.654-122.0322.88-341.388-97.054-78.831NANANANANANANANANANANA-63.96620.598253.441-29.886-78.82313.303167.462-42.791-97.524-67.496-49.341-10.795-45.259-115.732-56.006236.03111.553-105.27-255.838
us-gaap:PaymentsOfDividendsCommonStock ▁▁▁▁▁▁▃▃▃▄▆███████████████▇██▇▇▇▇▇▄▄▄▃▃▃▃▂▂▂▂▂14.6414.68514.6914.68614.68714.70614.8814.90414.98715.03315.41115.66715.68715.6615.69615.70215.715.69715.68315.68215.66115.6415.65315.65815.65515.63915.62215.62815.62715.59715.60215.56615.54815.5615.0215.0215.02114.914.87114.87414.87414.86614.82914.83114.82514.817
us-gaap:PaymentsForRepurchaseOfCommonStock ▄▂▁▁▁▅▁▂▃▆█▁▂▁▁▁▁▁▁▁20.8054.1850.00.00.027.5382.1994.51513.00836.89354.5440.05.3752.5020.00.00.00.00.00.0NANA0.00.0NANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1313131313131313131313141414141414141414141414141414141414141413131313131313131313131313
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value63636363636464656767676767676767676767676767676767666464646464646464
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value63636363636464656767676767676767676767676767676767656464646464636363
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-03-312011-09-302011-03-312010-09-30
Value1000.074000.060000.011000.052000.07000.023000.055000.08000.025000.054000.06000.023000.043000.001000.001000.000021000.0117000.0270000.0374000.0696000.0501000.01035000.01212000.01290000.01327000.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.760.820.810.860.510.350.530.640.650.510.550.540.590.540.230.510.350.460.420.460.320.40.410.420.450.430.410.50.490.430.420.490.460.380.420.460.450.470.380.420.490.380.40.40.410.37
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.760.820.80.860.510.350.520.640.650.510.540.540.590.540.240.510.350.460.430.460.320.40.410.420.450.430.420.50.490.430.420.490.460.380.430.460.450.470.370.420.490.370.390.40.410.37
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Tier One Risk Based Capital To Risk Weighted Assets

us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets dei:LegalEntity, us-gaap:CapitalUnitsByClass

us-gaap:TierOneRiskBasedCapitalToRiskWeightedAssets

trmk:TrustmarkCorporation, trmk:Tier1CapitalToRiskWeightedAssets


Tier
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value12.2512.212.1111.860.11940.11880.12480.12380.12310.12450.12330.12760.12580.12620.12330.12370.1230.12790.12760.12970.12940.13040.13210.13660.13970.1347
Percentage of TierOneRiskBasedCapitalToRiskWeightedAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:TrustmarkNationalBank, trmk:Tier1CapitalToRiskWeightedAssets


Tier
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value12.1711.8711.7511.570.11730.11690.1230.1220.12140.12270.12140.12590.12410.12460.12160.1220.12130.12630.12580.12780.12750.12850.130.13440.13740.1324
Percentage of TierOneRiskBasedCapitalToRiskWeightedAssets99.397.397.097.698.298.498.698.598.698.698.598.798.698.798.698.698.698.798.698.598.598.598.498.498.498.3

Capital To Risk Weighted Assets

us-gaap:CapitalToRiskWeightedAssets dei:LegalEntity, us-gaap:CapitalUnitsByClass

us-gaap:CapitalToRiskWeightedAssets

trmk:TrustmarkCorporation, trmk:CapitalToRiskWeightedAssets


Capital
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value14.114.0714.1212.880.130.12780.13250.13150.13070.13210.13070.13610.13390.13440.1310.13190.13110.13610.13590.13820.13820.13920.14070.1456
Percentage of CapitalToRiskWeightedAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:TrustmarkNationalBank, trmk:CapitalToRiskWeightedAssets


Capital
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value13.0212.7312.7312.60.1280.1260.13070.12970.12890.13030.12890.13440.13230.13280.12930.13020.12940.13450.13410.13630.13630.13730.13860.1432
Percentage of CapitalToRiskWeightedAssets92.390.590.297.898.598.698.698.698.698.698.698.898.898.898.798.798.798.898.798.698.698.698.598.4

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType, us-gaap:PlanName

us-gaap:AllocatedShareBasedCompensationExpense

trmk:PerformanceAwardsAndUnits, trmk:StockAndIncentiveCompensationPlan


Allocated
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value324000.0-118000.0417000.0456000.0-513000.0481000.0481000.081000.0
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.3-0.10.40.4-0.40.40.40.1
Percentage of InterestAndDividendIncomeOperating trmk:PerformanceAwardsAndUnits trmk:StockAndIncentiveCompensationPlan0.00.00.00.00.00.00.00.0

trmk:TimeVestedAwardsAndUnits, trmk:StockAndIncentiveCompensationPlan


Allocated
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value890000.02299000.0822000.0818000.01907000.0791000.0798000.0921000.0
Percentage of AllocatedShareBasedCompensationExpense274.7-1948.3197.1179.4-371.7164.4165.91137.0
Percentage of InterestAndDividendIncomeOperating0.72.10.70.71.60.60.60.7
Percentage of InterestAndDividendIncomeOperating trmk:TimeVestedAwardsAndUnits trmk:StockAndIncentiveCompensationPlan0.00.00.00.00.00.00.00.0

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:PlanName

trmk:StockAndIncentiveCompensationPlan


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value1214000.02181000.01290000.01239000.01274000.01394000.01234000.01272000.01279000.01002000.0848000.01158000.01079000.0785000.01059000.01076000.01221000.0953000.0943000.0941000.0839000.0961000.0
Percentage of AllocatedShareBasedCompensationExpense374.7-1848.30.0297.1279.4-271.70.0264.4265.91237.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of InterestAndDividendIncomeOperating1.02.01.11.11.11.21.01.01.00.80.70.90.90.70.90.91.10.90.90.90.81.0
Percentage of InterestAndDividendIncomeOperating trmk:StockAndIncentiveCompensationPlan0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value53364449355331445848603033173.8683538340.226305011411941192940343616-10.67627233331287.7734246234.086302729
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating42.833.337.443.330.544.525.034.544.838.348.824.128.214.93.330.434.532.40.225.130.250.510.539.918.741.019.226.736.934.033.816.1-10.128.526.836.233.330.07.944.647.224.34.129.826.328.6

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value56616364372439474838424046424043294037392735363640383644423833444234364139413236443534343834
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating45.055.953.156.132.920.631.736.137.430.834.332.638.336.634.937.326.638.535.438.026.635.334.735.339.637.535.340.138.437.831.042.339.835.640.944.642.343.732.737.945.135.934.734.537.433.3

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap:StatementBusinessSegments

trmk:GeneralBanking


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value505659563122364044344037423838392638333522323231363534294039303337363930344132323135
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments89.492.594.588.584.691.791.286.190.889.093.491.692.091.693.490.487.494.991.189.583.591.289.888.090.592.090.188.890.992.989.892.590.091.893.494.094.093.392.993.389.691.8
Percentage of InterestAndDividendIncomeOperating40.251.850.149.727.818.928.931.134.027.432.029.935.233.532.633.723.336.532.334.022.232.231.131.135.834.534.127.538.537.032.037.940.138.840.830.735.742.033.432.330.934.4
Percentage of InterestAndDividendIncomeOperating trmk:GeneralBanking0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

trmk:Insurance


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value3.4913.0751.8093.1453.5982.7731.8793.1962.8652.5872.7942.6922.4951.8751.9472.9872.3441.7671.72.7912.4221.4871.7882.692.4751.7641.5711.532.3012.0431.31.6512.1521.8031.5461.091.8391.461.1351.132.0511.473
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments6.25.02.94.99.611.24.86.85.96.76.56.65.44.44.86.97.94.44.67.18.94.24.97.46.14.64.14.65.24.83.84.55.24.53.73.45.03.33.23.25.93.8
Percentage of InterestAndDividendIncomeOperating2.82.81.52.73.12.31.52.52.22.12.22.22.11.61.72.62.11.71.62.72.41.51.72.62.41.71.61.42.21.91.41.92.31.91.61.11.91.51.21.12.01.4
Percentage of InterestAndDividendIncomeOperating trmk:Insurance0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

trmk:WealthManagement


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value2.531.5021.6864.2412.185-0.7031.5923.3441.5931.6520.0550.7091.1711.6630.7641.1551.410.3051.6261.3372.0731.6421.9381.6441.3621.2922.2012.2181.7320.9312.1761.0811.9881.4541.210.8320.3591.5621.361.21.5831.703
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments4.52.52.76.65.8-2.84.07.13.34.30.11.72.53.91.92.74.70.84.43.47.64.65.34.53.43.45.86.63.92.26.43.04.83.62.92.61.03.53.93.44.54.4
Percentage of InterestAndDividendIncomeOperating2.01.41.43.71.9-0.61.32.61.21.30.00.61.01.40.71.01.30.31.51.32.01.61.81.61.31.32.22.11.70.92.31.22.11.51.30.80.41.61.41.21.61.7
Percentage of InterestAndDividendIncomeOperating trmk:WealthManagement0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value8.6379.277119.7495.5172.6075.5376.0166.535.256.1794.3946.2165.48258.7085.7279.1618.4028.4155.7198.5178.577.8199.7669.2598.655119.6359.1035.43611119.1418.6691110117.8799.52513119.7939.0041210
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating6.98.510.08.54.82.24.44.65.04.24.93.55.24.721.57.55.18.78.08.15.68.58.27.69.69.08.310.08.79.05.010.810.49.69.812.211.212.08.09.913.311.49.78.912.110.5

us-gaap:IncomeTaxExpenseBenefit us-gaap:StatementBusinessSegments

trmk:GeneralBanking


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value7.1378.123107.9714.0932.0914.6884.4325.4114.195.4553.5365.3074.587247.134.2738.3697.1356.8444.0057.3197.1736.2078.2978.0847.7854.1219.9169.9547.9337.6899.8179.452107.2168.7612108.9647.7111
Percentage of IncomeTaxExpenseBenefit82.687.692.281.874.280.284.773.782.979.888.380.585.483.796.381.974.691.484.981.370.085.983.779.485.087.385.575.887.590.386.888.786.789.491.691.692.092.092.291.585.691.1
Percentage of InterestAndDividendIncomeOperating5.77.49.27.03.61.73.83.44.23.34.42.84.44.020.76.13.88.06.86.63.97.36.86.08.17.97.73.89.59.48.38.710.610.011.07.39.112.210.58.97.611.0
Percentage of InterestAndDividendIncomeOperating trmk:GeneralBanking0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

trmk:Insurance


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value0.8670.7780.4570.7690.8770.6920.4520.7480.7210.6510.710.6810.6160.4770.6391.1370.9130.6760.6461.0590.9210.570.6550.9830.9670.6620.5890.5770.850.7720.4850.6190.7990.6730.5760.4070.6940.5420.4180.4280.7660.548
Percentage of IncomeTaxExpenseBenefit10.08.43.87.915.926.58.212.411.012.411.515.59.98.72.513.115.97.47.712.616.16.77.612.69.97.16.510.67.57.05.37.17.16.45.05.27.34.13.74.48.54.4
Percentage of InterestAndDividendIncomeOperating0.70.70.40.70.80.60.40.60.60.50.60.50.50.40.51.00.80.60.61.00.90.60.61.00.90.60.60.50.80.70.50.70.90.70.60.40.70.50.40.40.80.5
Percentage of InterestAndDividendIncomeOperating trmk:Insurance0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

trmk:WealthManagement


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value0.6330.3760.4731.0090.547-0.1760.3970.8360.3980.4090.0140.1770.2930.4160.2920.4410.5410.1160.6210.5120.7930.6280.7420.6290.5020.5130.7290.7380.570.2980.7230.3610.7010.4530.3950.2560.0710.520.4560.4010.5280.564
Percentage of IncomeTaxExpenseBenefit7.34.14.010.39.9-6.87.213.96.17.80.24.04.77.61.25.19.41.37.46.113.97.48.78.05.15.58.013.65.02.77.94.26.24.33.43.20.73.94.14.15.94.5
Percentage of InterestAndDividendIncomeOperating0.50.30.40.90.5-0.10.30.60.30.30.00.10.20.40.20.40.50.10.60.50.80.60.70.60.50.50.70.70.50.30.80.40.80.50.40.30.10.50.50.40.50.5
Percentage of InterestAndDividendIncomeOperating trmk:WealthManagement0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Income Taxes Paid

us-gaap:IncomeTaxesPaid

us-gaap:IncomeTaxesPaid


Income
Period End2020-12-312020-09-302019-12-312019-09-302018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value10127.532110.8067.0095.9480.2980.3470.7780.195.89180.3761.035.0059.9350.3510.5050.29120.350.30.3130.482018180.465150.23210.4351415
Percentage of IncomeTaxesPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating8.811.36.09.20.65.65.10.30.30.70.25.718.00.41.04.99.70.30.50.311.30.30.30.312.70.522.819.719.90.515.50.221.80.414.214.9

Insurance Commissions And Fees

us-gaap:InsuranceCommissionsAndFees

us-gaap:InsuranceCommissionsAndFees


Insurance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1212101111119.3641111109.56210109.4198.813109.7459.2128.459109.6388.5938.5019.9069.4018.6167.8319.248.38.0977.3438.2278.0147.2426.8877.5337.1796.6066.0767.5166.8626.5126.2247.7466.8846.837
Percentage of InsuranceCommissionsAndFees100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating9.711.48.610.110.49.67.58.58.58.77.78.68.98.17.59.08.78.88.09.79.48.58.19.69.28.47.58.37.58.06.87.87.67.67.78.17.66.96.27.86.96.66.27.76.76.6

us-gaap:InsuranceCommissionsAndFees us-gaap:AdjustmentsForNewAccountingPronouncements

us-gaap:AccountingStandardsUpdate201409


Insurance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1212101111119.3641111109.56210109.4198.813109.745
Percentage of InsuranceCommissionsAndFees100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating9.711.48.610.110.49.67.58.58.58.77.78.68.98.17.59.08.7
Percentage of InterestAndDividendIncomeOperating us-gaap:AccountingStandardsUpdate2014090.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InsuranceCommissionsAndFees us-gaap:AdjustmentsForNewAccountingPronouncements, us-gaap:StatementBusinessSegments

us-gaap:AccountingStandardsUpdate201409, trmk:Insurance


Insurance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1212101111119.3641111109.56210109.4198.813109.745
Percentage of InsuranceCommissionsAndFees100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating9.711.48.610.110.49.67.58.58.58.77.78.68.98.17.59.08.7
Percentage of InterestAndDividendIncomeOperating us-gaap:AccountingStandardsUpdate201409 trmk:Insurance0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InsuranceCommissionsAndFees us-gaap:StatementBusinessSegments

trmk:Insurance


Insurance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1212101111119.3641111109.56210109.4198.813109.7459.212
Percentage of InsuranceCommissionsAndFees100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating9.711.48.610.110.49.67.58.58.58.77.78.68.98.17.59.08.78.8
Percentage of InterestAndDividendIncomeOperating trmk:Insurance0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value6.5027.1367.5468.1579.65316192122201917151312129.7727.3166.5136.2225.9545.8585.2615.1634.9975.0395.0765.2115.4555.8046.2426.4656.6726.486.5477.2187.9668.9389.34110111112131415
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating5.26.56.37.18.413.715.316.717.216.515.814.312.611.711.110.58.77.06.26.05.85.85.05.04.94.94.94.74.95.85.86.26.36.87.47.88.49.39.510.911.611.812.213.414.215.2

Interest Income Expense Net

us-gaap:InterestIncomeExpenseNet

us-gaap:InterestIncomeExpenseNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1191021111061051031051081071041051061051021041031029798979694999796979810610594101989988828586868985878688878887
Percentage of InterestIncomeExpenseNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating94.893.593.792.991.686.384.783.382.883.584.285.787.488.388.989.591.393.093.894.094.294.295.095.095.195.195.195.395.194.294.293.893.793.292.692.291.690.790.589.188.488.287.886.685.884.8

us-gaap:InterestIncomeExpenseNet us-gaap:StatementBusinessSegments

trmk:GeneralBanking


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value118101109104103102104107106103105106104101103103101979897969499979697931009798878184858587848685878687
Percentage of InterestIncomeExpenseNet98.998.898.598.698.598.599.199.199.099.0100.599.899.799.599.899.599.899.899.899.899.799.799.899.899.999.998.998.998.898.998.798.698.698.798.698.898.698.798.798.898.798.7
Percentage of InterestAndDividendIncomeOperating93.892.492.391.690.285.184.082.682.082.784.685.687.287.988.789.191.192.993.693.893.993.994.894.895.095.093.293.292.792.692.091.390.990.389.489.487.987.287.086.785.584.7
Percentage of InterestAndDividendIncomeOperating trmk:GeneralBanking0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

trmk:Insurance


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value-0.002-0.0030.0690.0680.0480.0450.060.0720.0550.0550.0560.0650.050.0550.0590.070.0550.050.0510.050.0570.0530.0660.1070.0860.0770.070.0820.1020.070.0650.0680.0890.0730.0710.070.0770.0640.0610.0450.0730.069
Percentage of InterestIncomeExpenseNet-0.0-0.00.10.10.00.00.10.10.10.10.10.10.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1
Percentage of InterestAndDividendIncomeOperating-0.0-0.00.10.10.00.00.00.10.00.00.00.10.00.00.10.10.00.00.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.10.1
Percentage of InterestAndDividendIncomeOperating trmk:Insurance0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

trmk:WealthManagement


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value1.2561.2311.6011.4011.5761.5040.8780.8540.9880.966-0.5450.1340.220.4170.1920.4340.1550.1290.1550.1190.2070.2450.1430.0910.0480.0550.9951.0561.1171.0461.0981.0731.0651.0821.1071.0221.0941.0671.0731.0281.0411.054
Percentage of InterestIncomeExpenseNet1.11.21.41.31.51.40.80.80.90.9-0.50.10.20.40.20.40.20.10.20.10.20.30.10.10.00.11.01.01.11.11.21.31.21.31.31.11.31.21.21.21.21.2
Percentage of InterestAndDividendIncomeOperating1.01.11.31.21.41.20.70.70.80.8-0.40.10.20.40.20.40.10.10.10.10.20.20.10.10.00.11.01.01.11.01.21.21.21.11.21.01.11.11.11.01.01.0
Percentage of InterestAndDividendIncomeOperating trmk:WealthManagement0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value6.5687.2477.7228.438101619212220191715131311
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating5.26.66.57.48.714.015.316.817.316.315.914.012.612.011.310.1

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value47515154322233414233363639361534243128302127272830292833322928333124272929302426312425252623
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating38.147.543.147.628.018.527.231.532.426.629.429.133.131.813.529.821.529.827.529.921.026.826.527.730.028.527.030.129.728.825.931.529.426.031.232.331.131.624.728.031.824.524.925.625.422.7

us-gaap:NetIncomeLoss us-gaap:StatementBusinessSegments

trmk:GeneralBanking


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value434848482720313638303433373413322129262818252525282726253029222527272822252922232324
Percentage of NetIncomeLoss90.693.495.089.786.493.092.387.992.190.594.293.093.192.888.792.690.495.992.991.787.192.891.690.492.393.591.591.392.193.990.993.791.292.794.194.894.793.893.294.091.092.1
Percentage of InterestAndDividendIncomeOperating34.544.340.942.724.217.225.127.729.824.027.727.030.829.612.027.619.428.625.527.418.324.924.325.027.726.626.423.729.027.623.729.229.528.829.823.426.529.822.923.523.323.4
Percentage of InterestAndDividendIncomeOperating trmk:GeneralBanking0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

trmk:Insurance


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value2.6242.2971.3522.3762.7212.0811.4272.4482.1441.9362.0842.0111.8791.3981.3081.851.4311.0911.0541.7321.5010.9171.1331.7071.5081.1020.9820.9531.4511.2710.8151.0321.3531.130.970.6831.1450.9180.7170.7021.2850.925
Percentage of NetIncomeLoss5.54.42.64.48.59.44.26.05.15.85.75.54.73.88.35.46.03.53.65.67.03.44.16.04.93.83.43.44.44.13.33.74.53.93.22.84.22.93.02.85.03.5
Percentage of InterestAndDividendIncomeOperating2.12.11.12.12.41.71.11.91.61.51.71.61.61.21.11.61.31.01.01.71.50.91.11.71.51.11.00.91.41.20.91.21.51.21.00.71.20.90.70.71.30.9
Percentage of InterestAndDividendIncomeOperating trmk:Insurance0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

trmk:WealthManagement


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value1.8971.1261.2133.2321.638-0.5271.1952.5081.1951.2430.0410.5320.8781.2470.4720.7140.8690.1891.0050.8251.281.0141.1961.0150.860.7791.4721.481.1620.6331.4530.721.2871.0010.8150.5760.2881.0420.9040.7991.0551.139
Percentage of NetIncomeLoss4.02.22.45.95.1-2.43.56.12.83.70.11.52.23.43.02.13.60.63.52.76.03.84.33.62.82.75.15.33.52.05.82.64.33.42.72.41.13.33.83.24.14.4
Percentage of InterestAndDividendIncomeOperating1.51.01.02.81.4-0.41.01.90.91.00.00.40.71.10.40.60.80.21.00.81.31.01.11.00.80.81.51.41.10.61.50.81.41.10.90.60.31.00.90.81.01.1
Percentage of InterestAndDividendIncomeOperating trmk:WealthManagement0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value4751543222414233363936
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating38.147.547.628.018.531.532.426.629.133.131.8
Percentage of InterestAndDividendIncomeOperating us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense

us-gaap:NonoperatingIncomeExpense


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value2.0012.092.5381.6012.2132.3073.4511.9892.132.2391.9041.3582.4151.0592.6813.745.6371.8912.0921.2741.3720.888-0.4661.47-0.433-1.055
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating1.61.92.11.41.91.92.81.51.61.81.51.12.00.92.33.25.01.82.01.21.30.9-0.41.4-0.4-1.0

us-gaap:NonoperatingIncomeExpense us-gaap:AdjustmentsForNewAccountingPronouncements

us-gaap:AccountingStandardsUpdate201409


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1.7411.4432.8531.5461.421.8123.2031.8192.362.4842.1631.6881.5431.4391.5941.4951.163
Percentage of NonoperatingIncomeExpense87.069.0112.496.664.278.592.891.5110.8110.9113.6124.363.9135.959.540.020.6
Percentage of InterestAndDividendIncomeOperating1.41.32.41.41.21.52.61.41.82.01.71.41.31.21.41.31.0
Percentage of InterestAndDividendIncomeOperating us-gaap:AccountingStandardsUpdate2014090.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CalculatedUnderRevenueGuidanceInEffectBeforeTopic606


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.260.647-0.3150.0550.7930.4950.2480.17-0.23-0.245-0.259-0.330.872-0.381.0872.245
Percentage of NonoperatingIncomeExpense13.031.0-12.43.435.821.57.28.5-10.8-10.9-13.6-24.336.1-35.940.560.0
Percentage of InterestAndDividendIncomeOperating0.20.6-0.30.00.70.40.20.1-0.2-0.2-0.2-0.30.7-0.30.91.9
Percentage of InterestAndDividendIncomeOperating us-gaap:CalculatedUnderRevenueGuidanceInEffectBeforeTopic6060.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NonoperatingIncomeExpense us-gaap:AdjustmentsForNewAccountingPronouncements, us-gaap:StatementBusinessSegments

us-gaap:AccountingStandardsUpdate201409, trmk:GeneralBanking


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1.6991.3882.8181.4961.3541.7643.1591.7912.3332.2442.161.6851.5411.4241.5681.4951.162
Percentage of NonoperatingIncomeExpense84.966.4111.093.461.276.591.590.0109.5100.2113.4124.163.8134.558.540.020.6
Percentage of InterestAndDividendIncomeOperating1.31.32.41.31.21.52.51.41.81.81.71.41.31.21.31.31.0
Percentage of InterestAndDividendIncomeOperating us-gaap:AccountingStandardsUpdate201409 trmk:GeneralBanking0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccountingStandardsUpdate201409, trmk:Insurance


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-30
Value0.0070.0230.0050.0230.0420.0220.0220.0050.0020.0040.0020.0020.0010.0250.00.001
Percentage of NonoperatingIncomeExpense0.31.10.21.41.91.00.60.30.10.20.10.10.00.90.00.0
Percentage of InterestAndDividendIncomeOperating0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of InterestAndDividendIncomeOperating us-gaap:AccountingStandardsUpdate201409 trmk:Insurance0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccountingStandardsUpdate201409, trmk:WealthManagement


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.0350.0320.030.0270.0240.0260.0220.0230.0250.2360.0010.0010.0010.015
Percentage of NonoperatingIncomeExpense1.71.51.21.71.11.10.61.21.210.50.10.10.01.4
Percentage of InterestAndDividendIncomeOperating0.00.00.00.00.00.00.00.00.00.20.00.00.00.0
Percentage of InterestAndDividendIncomeOperating us-gaap:AccountingStandardsUpdate201409 trmk:WealthManagement0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CalculatedUnderRevenueGuidanceInEffectBeforeTopic606, trmk:GeneralBanking


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.2510.64-0.3280.040.7840.4820.2320.138-0.259-0.271-0.28-0.3590.842-0.4081.0622.223
Percentage of NonoperatingIncomeExpense12.530.6-12.92.535.420.96.76.9-12.2-12.1-14.7-26.434.9-38.539.659.4
Percentage of InterestAndDividendIncomeOperating0.20.6-0.30.00.70.40.20.1-0.2-0.2-0.2-0.30.7-0.40.91.9
Percentage of InterestAndDividendIncomeOperating us-gaap:CalculatedUnderRevenueGuidanceInEffectBeforeTopic606 trmk:GeneralBanking0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CalculatedUnderRevenueGuidanceInEffectBeforeTopic606, trmk:WealthManagement


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.0090.0070.0130.0150.0090.0130.0160.0320.0290.0260.0210.0290.030.0280.0250.022
Percentage of NonoperatingIncomeExpense0.40.30.50.90.40.60.51.61.41.21.12.11.22.60.90.6
Percentage of InterestAndDividendIncomeOperating0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of InterestAndDividendIncomeOperating us-gaap:CalculatedUnderRevenueGuidanceInEffectBeforeTopic606 trmk:WealthManagement0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NonoperatingIncomeExpense us-gaap:StatementBusinessSegments

trmk:GeneralBanking


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1.952.0282.491.5362.1382.2463.3911.9292.0741.9731.881.3262.3881.0362.633.7185.6111.864
Percentage of NonoperatingIncomeExpense97.597.098.195.996.697.498.397.097.488.198.797.698.997.898.199.499.598.6
Percentage of InterestAndDividendIncomeOperating1.51.92.11.31.91.92.71.51.61.61.51.12.00.92.23.25.01.8
Percentage of InterestAndDividendIncomeOperating trmk:GeneralBanking0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

trmk:Insurance


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-31
Value0.0070.0230.0050.0230.0420.0220.0220.0050.0020.0040.0020.0020.0010.0250.00.0010.004
Percentage of NonoperatingIncomeExpense0.31.10.21.41.91.00.60.30.10.20.10.10.00.90.00.00.2
Percentage of InterestAndDividendIncomeOperating0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of InterestAndDividendIncomeOperating trmk:Insurance0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

trmk:WealthManagement


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.0440.0390.0430.0420.0330.0390.0380.0550.0540.2620.0220.030.0260.0230.0260.0220.0250.023
Percentage of NonoperatingIncomeExpense2.21.91.72.61.51.71.12.82.511.71.22.21.12.21.00.60.41.2
Percentage of InterestAndDividendIncomeOperating0.00.00.00.00.00.00.00.00.00.20.00.00.00.00.00.00.00.0
Percentage of InterestAndDividendIncomeOperating trmk:WealthManagement0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value5.865-15.455-6.735-4.8812.86731-2.7423.958161424-6.207-5.853-19.637-11.90.684142.793-28.723-4.9119.40923-16.81412-11.54112
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating4.7-14.1-5.7-4.32.526.0-2.23.012.411.819.4-5.0-4.9-17.0-10.20.613.02.7-27.3-4.79.223.7-16.012.3-11.312.5

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value0.3540.362-3.6660.2970.2980.272-4.0660.2660.280.2612.9830.3490.3480.354-0.2830.258110.525-0.8490.8981.9670.8440.4791.163
Percentage of OtherComprehensiveIncomeLossNetOfTax6.0-2.354.4-6.110.40.9148.36.71.71.812.3-5.6-5.9-1.82.437.776.018.83.0-18.320.93.5-2.89.2
Percentage of InterestAndDividendIncomeOperating0.30.3-3.10.30.30.2-3.30.20.20.22.40.30.30.3-0.20.29.90.5-0.80.91.90.80.51.1
Percentage of InterestAndDividendIncomeOperating us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value5.511-15.817-3.069-5.1782.569311.3753.753161421-6.516
Percentage of OtherComprehensiveIncomeLossNetOfTax94.0102.345.6106.189.699.1-50.194.899.499.488.4105.0
Percentage of InterestAndDividendIncomeOperating4.4-14.4-2.6-4.52.225.81.12.912.311.717.2-5.2
Percentage of InterestAndDividendIncomeOperating us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value5.511-15.817-3.069-5.1782.569311.3753.753161421-6.516-6.227-20.306-11.8310.3593.5652.172-28.564-6.1637.62323-17.79212
Percentage of OtherComprehensiveIncomeLossNetOfTax94.0102.345.6106.189.699.1-50.194.899.499.488.4105.0106.4103.499.452.524.677.899.4125.581.099.5105.895.7
Percentage of InterestAndDividendIncomeOperating4.4-14.4-2.6-4.52.225.81.12.912.311.717.2-5.2-5.2-17.6-10.10.33.22.1-27.1-5.97.423.6-16.911.7
Percentage of InterestAndDividendIncomeOperating us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value170981687816551155581569214019134971358413548134781328613439135251346313797138841390913490133521316113030127751267812390121821217912250120961211912057117901180511863118509828987298909931972797059698951495539526
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidatedEntities

srt:ParentCompany


Assetsus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-31
Value1927172316541634
Percentage of Assets11.612.812.511.8
Percentage of Assets11.612.812.511.8
Percentage of Assets srt:ParentCompany100.0100.0100.0100.0

us-gaap:Assets us-gaap:StatementBusinessSegments

trmk:GeneralBanking


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value1671616555162261525515378136631333313421133651329713207133641345113388137241381113837134171327813086129551270112604
Percentage of Assets97.898.198.098.198.097.598.898.898.698.799.499.499.599.499.599.599.599.599.499.499.499.499.4
Percentage of Assets97.898.198.098.198.097.598.898.898.698.799.499.499.599.499.599.599.599.599.499.499.499.499.4
Percentage of Assets trmk:GeneralBanking100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:Insurance


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value8279837880757473737168656767686664656666676667
Percentage of Assets0.50.50.50.50.50.50.60.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.5
Percentage of Assets0.50.50.50.50.50.50.60.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.5
Percentage of Assets trmk:Insurance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:WealthManagement


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value29924324222423228090901091089.6919.4116.497.9555.5926.6357.0147.2797.5017.6267.4977.3297.471
Percentage of Assets1.81.41.51.41.52.00.70.70.80.80.10.10.00.10.00.00.10.10.10.10.10.10.1
Percentage of Assets1.81.41.51.41.52.00.70.70.80.80.10.10.00.10.00.00.10.10.10.10.10.10.1
Percentage of Assets trmk:WealthManagement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value153181511814810138481401812367118371193911930118901169511840119411189312226123021234711952118321162611506112661120510913107321073310830106811072010683104351047510536104978541859486328690851184848505835484048415
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets89.689.689.589.089.388.287.787.988.188.288.088.188.388.388.688.688.888.688.688.388.388.288.488.188.188.188.488.388.488.688.588.788.888.686.987.187.387.587.587.487.787.888.088.3

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value170981687816551155581569214019134971358413548134781328613439135251346313797138841390913490133521316113030127751267812390121821217912250120961211912057117901180511863118509828987298909931972797059698951495539526
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesAndStockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Liabilities
Period End2020-12-312019-12-312018-12-312017-12-31
Value1927172316541634
Percentage of LiabilitiesAndStockholdersEquity11.612.812.511.8
Percentage of Assets11.612.812.511.8
Percentage of Assets srt:ParentCompany100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value177917591741171016731652166016451618158715911599158415701571158215611537152015341523150814731476145014461419141513991373135413291326135212871278125812411215122111921160114911581142112811101178919
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.410.410.511.010.711.812.312.111.911.812.011.911.711.711.411.411.211.411.411.711.711.811.611.911.911.911.611.711.611.411.511.311.211.413.112.912.712.512.512.612.312.212.00.00.00.011.70.00.0

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-31
Value1741166015911571
Percentage of StockholdersEquity100.0100.0100.0100.0
Percentage of Assets10.512.312.011.4
Percentage of Assets srt:ParentCompany90.396.496.296.2

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312013-12-31
Value-17.666-18.02-18.382-14.716-15.013-15.311-15.583-11.517-11.783-12.063-12.324-15.307-15.656-16.004-13.468-13.185-13.443-24.455-24.98-24.131-25.029-26.996-27.84-28.319-29.482-31.617-19.793
Percentage of StockholdersEquity-1.0-1.0-1.1-0.9-0.9-0.9-0.9-0.7-0.7-0.8-0.8-1.0-1.0-1.0-0.9-0.8-0.9-1.6-1.6-1.6-1.6-1.8-1.9-1.9-2.0-2.2-1.5
Percentage of Assets-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.3-0.2
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312013-12-31
Value7.0251.51417202523-8.017-9.392-13.145-29.146-43.824-65.278-58.762-52.535-26.535-14.704-15.063-18.628-20.87.764136.304-17.3940.398-11.673-11.003-25.462
Percentage of StockholdersEquity0.40.11.01.21.51.4-0.5-0.6-0.8-1.8-2.8-4.1-3.7-3.3-1.7-0.9-1.0-1.2-1.40.50.90.4-1.20.0-0.8-0.8-1.9
Percentage of Assets0.00.00.10.10.20.2-0.1-0.1-0.1-0.2-0.3-0.5-0.4-0.4-0.2-0.1-0.1-0.1-0.20.10.10.0-0.10.0-0.1-0.1-0.2
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value-10.641-16.506-1.0515.684107.698-23.6-20.858-24.816-40.915-55.679-79.946-73.739-67.886-39.725-27.825-28.509-43.005-45.798-17.075-12.164-21.573-45.394-28.58-41.193-42.484-43.7313.3953.121-11.426-1.624-14.717-14.451
Percentage of StockholdersEquity-0.6-0.9-0.10.30.60.5-1.4-1.3-1.5-2.6-3.5-5.0-4.7-4.3-2.5-1.8-1.8-2.8-3.0-1.1-0.8-1.4-3.1-1.9-2.8-3.0-3.20.30.3-1.0-0.1-1.2-1.6
Percentage of Assets-0.1-0.1-0.00.00.10.1-0.2-0.2-0.2-0.3-0.4-0.6-0.5-0.5-0.3-0.2-0.2-0.3-0.3-0.1-0.1-0.2-0.4-0.2-0.3-0.3-0.40.00.0-0.1-0.00.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value210229233231230229256257260272309362361366369366361356349285266256244139124
Percentage of StockholdersEquity11.813.113.413.613.813.915.415.616.117.219.522.722.823.323.524.124.525.125.822.221.922.322.111.813.5
Percentage of Assets1.21.41.41.51.51.61.91.91.92.02.32.72.72.72.72.72.92.93.02.92.72.72.60.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value13131313131313131313131414141414141414131313131111
Percentage of StockholdersEquity0.70.80.80.80.80.80.80.80.80.90.90.90.90.90.90.91.01.01.01.01.11.21.21.01.3
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value1566153314951459141914021414139513691342132313021282125712281185114210921034984932890853836797
Percentage of StockholdersEquity88.087.185.985.384.884.985.284.884.684.683.281.480.980.178.178.077.676.976.476.576.777.576.971.086.8
Percentage of Assets9.29.19.09.49.010.010.510.310.110.010.09.79.59.38.98.99.08.98.810.09.69.39.00.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Tier One Risk Based Capital

us-gaap:TierOneRiskBasedCapital dei:LegalEntity, us-gaap:CapitalUnitsByClass

us-gaap:TierOneRiskBasedCapital

trmk:TrustmarkCorporation, trmk:Tier1CapitalToRiskWeightedAssets


Tier
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value15011487145514181377135713721353132913131331136213371318130312981278128212691254123712301220120611911129
Percentage of TierOneRiskBasedCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.88.88.89.18.89.710.210.09.89.710.010.19.99.89.49.49.29.59.59.59.59.69.69.79.89.2
Percentage of Assets trmk:TrustmarkCorporation trmk:Tier1CapitalToRiskWeightedAssets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

trmk:TrustmarkNationalBank, trmk:Tier1CapitalToRiskWeightedAssets


Tier
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value14911446141213841353133613521333130912941311134413191301128412801260126612511235121812111201118611721108
Percentage of TierOneRiskBasedCapital99.397.397.097.698.398.598.698.598.598.698.598.698.798.798.698.698.698.798.698.598.598.598.498.498.498.1
Percentage of Assets8.78.68.58.98.69.510.09.89.79.69.910.09.89.79.39.29.19.49.49.49.49.59.59.69.69.0
Percentage of Assets trmk:TrustmarkNationalBank trmk:Tier1CapitalToRiskWeightedAssets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:ConsolidatedEntities

us-gaap:CashAndCashEquivalentsAtCarryingValue

srt:ParentCompany


Cash
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value1581516161617
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0
Percentage of Assets1.00.10.10.10.10.1
Percentage of Assets srt:ParentCompany8.20.91.01.00.00.0

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value449437425415418426418412346322311
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.73.23.23.03.13.43.43.53.53.33.3

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

us-gaap:BuildingAndBuildingImprovements


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value216210202197195200198199163155151
Percentage of PropertyPlantAndEquipmentGross48.248.147.747.546.747.047.448.547.248.148.6
Percentage of Assets1.31.61.51.41.51.61.61.71.71.61.6
Percentage of Assets us-gaap:BuildingAndBuildingImprovements0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FurnitureAndFixtures


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value180174169166172168162154142127120
Percentage of PropertyPlantAndEquipmentGross40.239.939.939.941.139.538.837.541.239.638.6
Percentage of Assets1.11.31.31.21.31.31.31.31.51.31.3
Percentage of Assets us-gaap:FurnitureAndFixtures0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Land


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value5252525251575758403939
Percentage of PropertyPlantAndEquipmentGross11.612.012.412.612.213.513.814.111.612.312.7
Percentage of Assets0.30.40.40.40.40.50.50.50.40.40.4
Percentage of Assets us-gaap:Land0.00.00.00.00.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value263256247237239230218205191180169
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.61.91.91.71.81.81.81.72.01.91.8

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value200199194192190190189188189189178178177178179181182183184190192194195196196198200200201203207208210210154155156156142141140141142147
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.21.21.21.21.41.41.41.41.41.31.31.31.31.31.31.31.41.41.51.51.51.51.61.61.61.61.71.71.71.81.81.81.81.61.61.61.61.51.51.51.51.51.5

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value384384385385385381379379379379379379379379379379379366366366366366366365365365365365365365372372368366291291291291291291291291291291
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.22.32.32.52.52.72.82.82.82.82.92.82.82.82.82.72.72.72.72.82.82.92.92.93.03.03.03.03.03.03.23.23.13.13.02.92.92.93.03.03.03.13.03.1

us-gaap:Goodwill us-gaap:StatementBusinessSegments

trmk:GeneralBanking


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value334334334334321321321328246246246246
Percentage of Goodwill86.888.188.188.187.787.787.988.184.884.884.884.8
Percentage of Assets2.02.52.52.42.42.52.62.82.52.52.62.6
Percentage of Assets trmk:GeneralBanking2.12.52.52.42.42.50.00.00.00.00.00.0

trmk:Insurance


Goodwillus-gaap:
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value504545454545444444444444
Percentage of Goodwill13.211.911.911.912.312.312.111.915.215.215.215.2
Percentage of Assets0.30.30.30.30.30.40.40.40.50.50.50.5
Percentage of Assets trmk:Insurance61.060.665.366.068.066.90.00.00.00.00.00.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value6.176.7247.398.1428.8957.5377.3438.3459.1011011121314161719192022242527303231333537394144464917181918141415151619
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.20.20.20.20.20.20.30.30.30.30.30.30.40.40.40.40.20.20.20.20.10.20.20.20.20.2

us-gaap:IntangibleAssetsNetExcludingGoodwill us-gaap:FiniteLivedIntangibleAssetsByMajorClass

trmk:BankingCharters


Intangible
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value0.1830.2490.3150.3820.4480.5140.580.6470.7130.7790.845
Percentage of IntangibleAssetsNetExcludingGoodwill2.53.42.82.32.21.91.71.54.15.55.2
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets trmk:BankingCharters0.00.00.00.00.00.00.00.00.00.00.0

trmk:CoreDepositIntangibles


Intangible
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value3.0945.5789.3211417243139139.57910
Percentage of IntangibleAssetsNetExcludingGoodwill41.976.083.986.786.987.994.493.879.768.165.9
Percentage of Assets0.00.00.10.10.10.20.30.30.10.10.1
Percentage of Assets trmk:CoreDepositIntangibles0.00.00.00.00.00.00.00.00.00.00.0

trmk:InsuranceIntangibles


Intangible
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value4.1131.5161.4761.7982.2092.7071.1271.7262.5053.3634.297
Percentage of IntangibleAssetsNetExcludingGoodwill55.720.613.311.010.79.83.44.114.523.926.4
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets trmk:InsuranceIntangibles0.00.00.00.00.00.00.00.00.00.00.0

Deferred Tax Assets Liabilities Net

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:DeferredTaxAssetsLiabilitiesNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value503139528010011713055
Percentage of DeferredTaxAssetsLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.20.30.40.60.81.01.10.6

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value33333030293031333233
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.20.20.20.20.20.20.20.3

Other Assets

us-gaap:OtherAssets

us-gaap:OtherAssets


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value587587609609595591532531514503498517507511532542551566577558554542562551551540568564569576582574477509374353332356322298325325355347
Percentage of OtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.43.53.73.93.84.23.93.93.83.73.83.93.83.83.93.94.04.24.34.24.34.24.44.54.54.44.64.74.74.84.94.94.04.33.83.63.43.63.33.13.43.43.73.6

us-gaap:OtherAssets us-gaap:ConsolidatedEntities

srt:ParentCompany


Other
Period End2020-12-312019-12-312018-12-312017-12-31
Value158151617
Percentage of OtherAssets26.03.03.43.3
Percentage of Assets1.00.10.10.1
Percentage of Assets srt:ParentCompany8.20.91.01.1

Time Deposit Maturities Year One

us-gaap:TimeDepositMaturitiesYearOne

us-gaap:TimeDepositMaturitiesYearOne


Time
Period End2020-12-31
Value1152
Percentage of TimeDepositMaturitiesYearOne100.0
Percentage of Assets7.0

Long Term Debt

us-gaap:LongTermDebt dei:LegalEntity, us-gaap:StatementGeographical, us-gaap:LongtermDebtType

us-gaap:LongTermDebt

trmk:BancTrust, trmk:Atlanta, us-gaap:FederalHomeLoanBankAdvances


Long
Period End2020-12-312019-12-31
Value116000.0811000.0
Percentage of LongTermDebt100.0100.0
Percentage of Assets0.00.0
Percentage of Assets trmk:BancTrust trmk:Atlanta us-gaap:FederalHomeLoanBankAdvances0.00.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value4670000.04619000.04456000.04378000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0
Percentage of Assets0.00.00.00.0

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value4713000.04731000.04342000.04265000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0
Percentage of Assets0.00.00.00.0

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value4752000.04752000.04449000.04371000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0
Percentage of Assets0.00.00.00.0

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value4464000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.0

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value34353231313232343334
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.20.20.20.20.20.30.30.3

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value40403737
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0
Percentage of Assets0.20.20.20.2

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value5308000.05571000.05175000.05280000.0
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0
Percentage of Assets0.00.00.00.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value177917591741171016731652166016451618158715911599158415701571158215611537152015341523150814731476145014461419141513991373135413291326135212871278125812411215122111921160114911581142112811101178919
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.410.410.511.010.711.812.312.111.911.812.011.911.711.711.411.411.211.411.411.711.711.811.611.911.911.911.611.711.611.411.511.311.211.413.112.912.712.512.512.612.312.212.00.00.00.011.70.00.0

us-gaap:StockholdersEquity us-gaap:ConsolidatedEntities

srt:ParentCompany


Stockholders
Period End2020-12-312019-12-312018-12-312017-12-31
Value1741166015911571
Percentage of StockholdersEquity100.0100.0100.0100.0
Percentage of Assets10.512.312.011.4
Percentage of Assets srt:ParentCompany90.396.496.296.2

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312013-12-31
Value-17.666-18.02-18.382-14.716-15.013-15.311-15.583-11.517-11.783-12.063-12.324-15.307-15.656-16.004-13.468-13.185-13.443-24.455-24.98-24.131-25.029-26.996-27.84-28.319-29.482-31.617-19.793
Percentage of StockholdersEquity-1.0-1.0-1.1-0.9-0.9-0.9-0.9-0.7-0.7-0.8-0.8-1.0-1.0-1.0-0.9-0.8-0.9-1.6-1.6-1.6-1.6-1.8-1.9-1.9-2.0-2.2-1.5
Percentage of Assets-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.2-0.3-0.2
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312013-12-31
Value7.0251.51417202523-8.017-9.392-13.145-29.146-43.824-65.278-58.762-52.535-26.535-14.704-15.063-18.628-20.87.764136.304-17.3940.398-11.673-11.003-25.462
Percentage of StockholdersEquity0.40.11.01.21.51.4-0.5-0.6-0.8-1.8-2.8-4.1-3.7-3.3-1.7-0.9-1.0-1.2-1.40.50.90.4-1.20.0-0.8-0.8-1.9
Percentage of Assets0.00.00.10.10.20.2-0.1-0.1-0.1-0.2-0.3-0.5-0.4-0.4-0.2-0.1-0.1-0.1-0.20.10.10.0-0.10.0-0.1-0.1-0.2
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value-10.641-16.506-1.0515.684107.698-23.6-20.858-24.816-40.915-55.679-79.946-73.739-67.886-39.725-27.825-28.509-43.005-45.798-17.075-12.164-21.573-45.394-28.58-41.193-42.484-43.7313.3953.121-11.426-1.624-14.717-14.451
Percentage of StockholdersEquity-0.6-0.9-0.10.30.60.5-1.4-1.3-1.5-2.6-3.5-5.0-4.7-4.3-2.5-1.8-1.8-2.8-3.0-1.1-0.8-1.4-3.1-1.9-2.8-3.0-3.20.30.3-1.0-0.1-1.2-1.6
Percentage of Assets-0.1-0.1-0.00.00.10.1-0.2-0.2-0.2-0.3-0.4-0.6-0.5-0.5-0.3-0.2-0.2-0.3-0.3-0.1-0.1-0.2-0.4-0.2-0.3-0.3-0.40.00.0-0.1-0.00.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value210229233231230229256257260272309362361366369366361356349285266256244139124
Percentage of StockholdersEquity11.813.113.413.613.813.915.415.616.117.219.522.722.823.323.524.124.525.125.822.221.922.322.111.813.5
Percentage of Assets1.21.41.41.51.51.61.91.91.92.02.32.72.72.72.72.72.92.93.02.92.72.72.60.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value13131313131313131313131414141414141414131313131111
Percentage of StockholdersEquity0.70.80.80.80.80.80.80.80.80.90.90.90.90.90.90.91.01.01.01.01.11.21.21.01.3
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value1566153314951459141914021414139513691342132313021282125712281185114210921034984932890853836797
Percentage of StockholdersEquity88.087.185.985.384.884.985.284.884.684.683.281.480.980.178.178.077.676.976.476.576.777.576.971.086.8
Percentage of Assets9.29.19.09.49.010.010.510.310.110.010.09.79.59.38.98.99.08.98.810.09.69.39.00.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1313131313131313131313141414141414141414141414141414141414141413131313131313131313131313
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value210229233231230229256257260272309362361366369368367365366365364363361356
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.41.41.51.51.61.91.91.92.02.32.72.72.72.72.72.62.72.72.82.82.82.92.9

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value156615331495145914191402141413951369134213231302128212571228122812091200118511721157115111421130111711031092108110631045103410231006991984973958944932923911898890853
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.29.19.09.49.010.010.510.310.110.010.09.79.59.38.98.88.78.98.98.98.99.09.09.19.29.18.98.98.88.78.88.78.58.410.09.99.79.59.69.59.49.49.39.0

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-312008-12-31
Value-10.641-16.506-1.0515.684107.698-23.6-20.858-24.816-40.915-55.679-79.946-73.739-67.886-39.725-27.825-28.509-43.005-45.798-17.075-12.164-21.573-45.394-28.58-41.193-29.652-42.484-34.365-30.557-38.497-43.731-52.226-36.0885.7093.3957.2483.6541.5373.121193.674-11.623-11.4269.6485.404-1.624-14.717
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.1-0.1-0.00.00.10.1-0.2-0.2-0.2-0.3-0.4-0.6-0.5-0.5-0.3-0.2-0.2-0.3-0.3-0.1-0.1-0.2-0.4-0.2-0.3-0.2-0.3-0.3-0.3-0.3-0.4-0.4-0.30.00.00.10.00.00.00.20.0-0.1-0.10.00.0-0.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1048394-44.57994-79.163134-14.63-18.242149764195770736833574.15745116-10.63490-4.198-30.8113640-3.1533610079-3.25927102
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating83.276.179.4-39.082.6-65.8107.9-11.2-14.011.978.051.516.350.060.763.461.430.557.03.843.6109.6-11.1102.2-4.5-32.637.941.0-3.336.6102.179.1-3.227.199.2

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value179-567.776352-203.082-1039.539-327.553-115.123103-39.821-23.03643103292631136-89.933-155.208-232.7783567-70.784-145.421-25.7262616923-72.08771108-12.468-350.38-98.52371131
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating142.4-518.6296.4-177.6-906.7-272.1-92.479.7-30.6-18.434.682.624.4227.510.031.8-80.7-140.2-231.133.164.1-66.8-152.3-28.928.3179.624.9-73.374.5108.8-12.7-347.4-97.569.5127.9

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value208306941-214.3911567452-146.671-7.2618.429112-223.654-122.0322-341.388-97.054-78.831-63.96620253-29.886-78.82313167-42.791-97.524-67.496-49.341-10.795-45.259-115.732-56.006236111-105.27-255.838
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating165.6280.0791.3-187.51366.8375.6-117.7-5.66.589.8-179.0-97.819.0-295.2-83.0-67.9-57.418.6251.7-27.6-75.112.6175.4-48.2-105.4-71.5-51.5-11.0-47.1-116.4-57.2234.0110.3-102.1-248.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value492-177.9631387-462.05262245-127.34781-49.634104-82.91
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating391.3-162.61167.1-404.0542.837.7-102.262.9-38.183.3-66.4

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3.59.00.8-1.1-7.9-11.62.52-2.0-3.0-1.46.1281.6120.73.3210.60.33.95.115-2.2250.1253.21.95.0754.6251.33.4112.47.018-2.826142.1574.583-14.89-0.0251.88-2.948-11.084.7-0.3555.071-3.59-7.705-0.165
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Other Operating Capital Net

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-6.769132.668-1.92-3.328-25.1193.036-8.376-7.692-10.806-7.2520.791.1168.362-0.15-3.692-2.498-0.09121.493-9.032-7.0781.934-7.345.569-4.554-6.7850.599-5.992-4.1590.1334.790.6971.90339-4.723-9.332-2.99355-37.221101.4861-54.262174.263
Percentage of IncreaseDecreaseInOtherOperatingCapitalNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1048394-44.57994-79.163134-14.63-18.242149764195770736833574.15745116-10.63490-4.198-30.8113640-3.1533610079-3.25927102
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating83.276.179.4-39.082.6-65.8107.9-11.2-14.011.978.051.516.350.060.763.461.430.557.03.843.6109.6-11.1102.2-4.5-32.637.941.0-3.336.6102.179.1-3.227.199.2

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value47515154322233414233363639361534243128302127272830292833322928333124272929302426312425252623
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating38.147.543.147.628.018.527.231.532.426.629.429.133.131.813.529.821.529.827.529.921.026.826.527.730.028.527.030.129.728.825.931.529.426.031.232.331.131.624.728.031.824.524.925.625.422.7

us-gaap:NetIncomeLoss us-gaap:StatementBusinessSegments

trmk:GeneralBanking


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value434848482720313638303433373413322129262818252525282726253029222527272822252922232324
Percentage of NetIncomeLoss90.693.495.089.786.493.092.387.992.190.594.293.093.192.888.792.690.495.992.991.787.192.891.690.492.393.591.591.392.193.990.993.791.292.794.194.894.793.893.294.091.092.1
Percentage of InterestAndDividendIncomeOperating34.544.340.942.724.217.225.127.729.824.027.727.030.829.612.027.619.428.625.527.418.324.924.325.027.726.626.423.729.027.623.729.229.528.829.823.426.529.822.923.523.323.4
Percentage of InterestAndDividendIncomeOperating trmk:GeneralBanking0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

trmk:Insurance


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value2.6242.2971.3522.3762.7212.0811.4272.4482.1441.9362.0842.0111.8791.3981.3081.851.4311.0911.0541.7321.5010.9171.1331.7071.5081.1020.9820.9531.4511.2710.8151.0321.3531.130.970.6831.1450.9180.7170.7021.2850.925
Percentage of NetIncomeLoss5.54.42.64.48.59.44.26.05.15.85.75.54.73.88.35.46.03.53.65.67.03.44.16.04.93.83.43.44.44.13.33.74.53.93.22.84.22.93.02.85.03.5
Percentage of InterestAndDividendIncomeOperating2.12.11.12.12.41.71.11.91.61.51.71.61.61.21.11.61.31.01.01.71.50.91.11.71.51.11.00.91.41.20.91.21.51.21.00.71.20.90.70.71.30.9
Percentage of InterestAndDividendIncomeOperating trmk:Insurance0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

trmk:WealthManagement


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value1.8971.1261.2133.2321.638-0.5271.1952.5081.1951.2430.0410.5320.8781.2470.4720.7140.8690.1891.0050.8251.281.0141.1961.0150.860.7791.4721.481.1620.6331.4530.721.2871.0010.8150.5760.2881.0420.9040.7991.0551.139
Percentage of NetIncomeLoss4.02.22.45.95.1-2.43.56.12.83.70.11.52.23.43.02.13.60.63.52.76.03.84.33.62.82.75.15.33.52.05.82.64.33.42.72.41.13.33.83.24.14.4
Percentage of InterestAndDividendIncomeOperating1.51.01.02.81.4-0.41.01.90.91.00.00.40.71.10.40.60.80.21.00.81.31.01.11.00.80.81.51.41.10.61.50.81.41.10.90.60.31.00.90.81.01.1
Percentage of InterestAndDividendIncomeOperating trmk:WealthManagement0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value4751543222414233363936
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating38.147.547.628.018.531.532.426.629.133.131.8
Percentage of InterestAndDividendIncomeOperating us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-06-302020-03-31
Value1214000.02181000.01274000.01394000.0
Percentage of ShareBasedCompensation100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value179-567.776352-203.082-1039.539-327.553-115.123103-39.821-23.03643103292631136-89.933-155.208-232.7783567-70.784-145.421-25.7262616923-72.08771108-12.468-350.38-98.52371131
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating142.4-518.6296.4-177.6-906.7-272.1-92.479.7-30.6-18.434.682.624.4227.510.031.8-80.7-140.2-231.133.164.1-66.8-152.3-28.928.3179.624.9-73.374.5108.8-12.7-347.4-97.569.5127.9

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value5.7688.1526.9436.9964.4844.1545.9922.9633.9654.4073.7744.6463.3622.8622.2562.8211.8236.3193.2791.7942.3212.8142.8233.8723.2722.793.8342.4233.7952.3373.1275.35.3342.2284.7062.6172.946.9093.7913.9161.992.4871.7962.671.3190.935
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value208306941-214.3911567452-146.671-7.2618.429112-223.654-122.0322-341.388-97.054-78.831-63.96620253-29.886-78.82313167-42.791-97.524-67.496-49.341-10.795-45.259-115.732-56.006236111-105.27-255.838
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating165.6280.0791.3-187.51366.8375.6-117.7-5.66.589.8-179.0-97.819.0-295.2-83.0-67.9-57.418.6251.7-27.6-75.112.6175.4-48.2-105.4-71.5-51.5-11.0-47.1-116.4-57.2234.0110.3-102.1-248.0

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value14141414141414141415151515151515151515151515151515151515151515151515151515141414141414141414
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312015-09-30
Value204.1850.00.00.0272.1994.5151336540.05.3752.5020.00.00.00.00.00.00.00.0
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.00.00.00.0100.0100.0100.0100.0100.0100.00.0100.0100.00.00.00.00.00.00.00.00.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value5755494465667170696755
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1781000.01524000.01249000.01105000.01734000.01720000.02160000.01779000.01864000.01164000.01397000.0
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:AssumedAveragePrepaymentSpeed

trmk:AssumedAveragePrepaymentSpeed


Assumed
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value1.011.0-1.0-1.0017.0-2.01.01.8110.191.33-0.15-0.247.25-0.110.860.248.15-3.54
Percentage of AssumedAveragePrepaymentSpeed100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAdoptionOfAccountingStandardAdjustments

trmk:CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAdoptionOfAccountingStandardAdjustments


Certain
Period End2020-12-31
Value0.0
Percentage of CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAdoptionOfAccountingStandardAdjustments0.0

trmk:CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAllowanceForLoanLossesAdoptionOfAccountingStandardAdjustments

trmk:CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAllowanceForLoanLossesAdoptionOfAccountingStandardAdjustments


Certain
Period End2020-12-31
Value0
Percentage of CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAllowanceForLoanLossesAdoptionOfAccountingStandardAdjustments0.0

trmk:ChangesInUnrealizedGainsLossesWithinLevel3FinancialInstrumentsCarriedAtFairValueAndStillHeld us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

trmk:ChangesInUnrealizedGainsLossesWithinLevel3FinancialInstrumentsCarriedAtFairValueAndStillHeld

trmk:MortgageServicingRights, us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Changes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-4.465130.9520.06-3.159-23.9994.048-8.054-8.209-8.863-6.5372.6151.7439.5211.168-2.393-1.2911.466130.38-7.033-6.8662.011-4.1416.076-2.368
Percentage of ChangesInUnrealizedGainsLossesWithinLevel3FinancialInstrumentsCarriedAtFairValueAndStillHeld100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeFinancialInstrumentsAssets, us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Changes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-09-30
Value1.0131.5795.1017.0338.4694.4280.360.2460.2960.3820.389-0.080.0880.239-0.086-0.911-0.9140.342-0.151-0.2530.7590.398-0.250.395-0.53-0.034-0.221.401-0.498-0.096-0.2191.014-0.4870.427-0.0031.5360.914-0.130.110.475-0.345-0.1760.062
Percentage of ChangesInUnrealizedGainsLossesWithinLevel3FinancialInstrumentsCarriedAtFairValueAndStillHeld-22.711.5535.811721.7-268.1-18.58.9-3.1-3.6-4.3-6.0-3.15.02.5-7.438.170.823.3-1.2-66.6-10.8-5.8-12.4-9.5-8.71.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

trmk:DebtInstrumentUnderwritingDiscount us-gaap:LongtermDebtType

trmk:DebtInstrumentUnderwritingDiscount

us-gaap:SubordinatedDebt


Debt
Period End2020-12-31
Value1.2
Percentage of DebtInstrumentUnderwritingDiscount100.0

trmk:DecreaseIncreaseInMemberBankStock

trmk:DecreaseIncreaseInMemberBankStock


Decrease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value1.0340.0030.0120.08-0.4680.107-0.5470.1120.1030.07-8.4810.144-10.699-16.415-3.735-0.265-0.6180.1446.2332.1478.286-8.285.8951610-14.10.00.00.00.0
Percentage of DecreaseIncreaseInMemberBankStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

trmk:DerivativeInstrumentsGainLossClassifiedIntoBankCardIncomeNet us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation

trmk:DerivativeInstrumentsGainLossClassifiedIntoBankCardIncomeNet

us-gaap:Nondesignated, trmk:BankcardAndOtherFees


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-667000.01602000.0480000.0234000.0-76000.0-1660000.0567000.0-600000.0-487000.0-256000.0-316000.0-86000.0-10000.055000.032000.0-10000.0-25000.0-28000.0266000.01000.0-148000.0-58000.045000.0-128000.0118000.0-84000.016000.03000.0-122000.0-121000.0
Percentage of DerivativeInstrumentsGainLossClassifiedIntoBankCardIncomeNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:DerivativeInstrumentsGainLossClassifiedIntoIncomeNet us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation

trmk:DerivativeInstrumentsGainLossClassifiedIntoIncomeNet

us-gaap:Nondesignated, trmk:MortgageBankingNet


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-1.614-9.198-6.5190.0741233-7.8926.1917.9444.8533.052-1.302-2.523-5.418-2.561-0.4662.698-1.544-11.029-0.6884.5917.139-2.8291.265-1.5944.553.771-0.9864.9773.276
Percentage of DerivativeInstrumentsGainLossClassifiedIntoIncomeNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:FinanceReceivableLoanDeferredFeesAndCostRecognizedOnSale us-gaap:LoansInsuredOrGuaranteedByGovernmentAuthorities

trmk:FinanceReceivableLoanDeferredFeesAndCostRecognizedOnSale

trmk:SmallBusinessAdministrationCARESActPaycheckProtectionProgram


Finance
Period End2021-06-30
Value18
Percentage of FinanceReceivableLoanDeferredFeesAndCostRecognizedOnSale100.0

trmk:FinanceReceivableLoanSold us-gaap:LoansInsuredOrGuaranteedByGovernmentAuthorities

trmk:FinanceReceivableLoanSold

trmk:SmallBusinessAdministrationCARESActPaycheckProtectionProgram


Finance
Period End2021-06-30
Value354
Percentage of FinanceReceivableLoanSold100.0

trmk:FinancingReceivableAllowanceForCreditLossesWriteOffsRecoveriesNet us-gaap:MortgageLoansOnRealEstateLoanType

trmk:FinancingReceivableAllowanceForCreditLossesWriteOffsRecoveriesNet

trmk:AllowanceForCreditLossesACL


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.168-2.3860.291-1.062-0.4393.0772.610.2121.0921.896
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffsRecoveriesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:FinancingReceivablePostModificationRecordedInvestmentRelatedWriteOffs

trmk:FinancingReceivablePostModificationRecordedInvestmentRelatedWriteOffs


Financing
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value0.00.10.02.21.1280.3550.0740.043134.40.30.00.0010.1260.00.00.01.00.00.00.00.00.8060.00.0130.0070.0550.00.1130.2740.3690.060.74.20.5370.5630.30.20.7690.6310.51.498
Percentage of FinancingReceivablePostModificationRecordedInvestmentRelatedWriteOffs0.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.00.00.0100.00.00.00.00.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:ForeclosedAssetsRemeasuredAfterInitialRecognitionFairValue

trmk:ForeclosedAssetsRemeasuredAfterInitialRecognitionFairValue


Foreclosed
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value4.7790.5212.54.40.13.13.03.23.15.70.87.02.19.34.65.85.9105.75.19.2125.11312138.114187.6
Percentage of ForeclosedAssetsRemeasuredAfterInitialRecognitionFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:GeneralBankingOther

trmk:GeneralBankingOther


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value8.3019.4729.1078.8437.7175.3558.1928.3498.0047.1917.757.4597.076.6267.2667.157.376.56.7966.7567.4366.9187.1566.9647.4166.7626.7127.2799.8949.0819.588.9299.5077.9457.9786.9248.1797.3647.1127.0336.8546.4756.4826.2356.4175.88
Percentage of GeneralBankingOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:GeneralBankingOther us-gaap:AdjustmentsForNewAccountingPronouncements

us-gaap:AccountingStandardsUpdate201409


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value8.5297.1927.1137.0266.5576.7326.9946.9667.1816.8897.086.5226.8546.5517.2247.1277.209
Percentage of GeneralBankingOther102.775.978.179.585.0125.785.483.489.795.891.487.496.998.999.499.797.8

us-gaap:CalculatedUnderRevenueGuidanceInEffectBeforeTopic606


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-0.2282.281.9941.8171.16-1.3771.1981.3830.8230.3020.670.9370.2160.0750.0420.023
Percentage of GeneralBankingOther-2.724.121.920.515.0-25.714.616.610.34.28.612.63.11.10.60.3

trmk:GeneralBankingOther us-gaap:AdjustmentsForNewAccountingPronouncements, us-gaap:StatementBusinessSegments

us-gaap:AccountingStandardsUpdate201409, trmk:GeneralBanking


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value8.5197.1847.1047.0196.5496.7266.9866.9597.1626.8657.0616.5036.8326.5247.2027.1047.201
Percentage of GeneralBankingOther102.675.878.079.484.9125.685.383.489.595.591.187.296.698.599.199.497.7

us-gaap:AccountingStandardsUpdate201409, trmk:WealthManagement


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value0.010.0080.0090.0070.0080.0060.0080.0070.0190.0240.0190.0190.0220.0270.0220.0230.008
Percentage of GeneralBankingOther0.10.10.10.10.10.10.10.10.20.30.20.30.30.40.30.30.1

us-gaap:CalculatedUnderRevenueGuidanceInEffectBeforeTopic606, trmk:GeneralBanking


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-0.2282.281.9941.8171.16-1.3771.1981.3830.8230.3020.670.9370.2160.0750.0420.023
Percentage of GeneralBankingOther-2.724.121.920.515.0-25.714.616.610.34.28.612.63.11.10.60.3

trmk:GeneralBankingOther us-gaap:StatementBusinessSegments

trmk:GeneralBanking


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value8.2919.4649.0988.8367.7095.3498.1848.3427.9857.1677.7317.447.0486.6047.2447.1277.3626.496
Percentage of GeneralBankingOther99.999.999.999.999.999.999.999.999.899.799.899.799.799.799.799.799.999.9

trmk:WealthManagement


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.010.0080.0090.0070.0080.0060.0080.0070.0190.0240.0190.0190.0220.0220.0220.0230.0080.004
Percentage of GeneralBankingOther0.10.10.10.10.10.10.10.10.20.30.20.30.30.30.30.30.10.1

trmk:IncreaseDecreaseRelatedToTaxWithholdingForShareBasedCompensation

trmk:IncreaseDecreaseRelatedToTaxWithholdingForShareBasedCompensation


Increase
Period End2021-06-302021-03-312020-06-302020-03-31
Value-11000.0-1230000.0-59000.0-1020000.0
Percentage of IncreaseDecreaseRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0

trmk:IncreaseDecreaseRelatedToTaxWithholdingForShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Increase
Period End2021-06-302021-03-312020-06-302020-03-31
Value-13000.0-1254000.0-64000.0-1037000.0
Percentage of IncreaseDecreaseRelatedToTaxWithholdingForShareBasedCompensation118.2102.0108.5101.7

us-gaap:CommonStock


Increase
Period End2021-06-302021-03-312020-06-302020-03-31
Value2000.024000.05000.017000.0
Percentage of IncreaseDecreaseRelatedToTaxWithholdingForShareBasedCompensation-18.2-2.0-8.5-1.7

trmk:InterestAndFeeIncomeOnPaycheckProtectionProgramLoans

trmk:InterestAndFeeIncomeOnPaycheckProtectionProgramLoans


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-30
Value259.241146.7295.044
Percentage of InterestAndFeeIncomeOnPaycheckProtectionProgramLoans100.0100.0100.0100.0100.0

trmk:InterestAndFeesOnLHFSAndLHFI

trmk:InterestAndFeesOnLHFSAndLHFI


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value1700000.02100000.02100000.02000000.01500000.01300000.01800000.01700000.01300000.01000000.01100000.01500000.01400000.0871000.01200000.01400000.01200000.01100000.01300000.01500000.01300000.0867000.01000000.01400000.01300000.01100000.0
Percentage of InterestAndFeesOnLHFSAndLHFI100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:MortgageBankingIncome

trmk:MortgageBankingIncome


Mortgage
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1720283633277.9148.171103.4425.7168.6479.046116.2844.4259.008105.4287.3646.7218.6994.2877.4439.4818.9655.9185.8426.1916.8295.1868.448.295111111117.2956.0389.7836.2694.7224.5029.8618.916.072
Percentage of MortgageBankingIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:MortgageBankingIncome us-gaap:AdjustmentsForNewAccountingPronouncements

us-gaap:CalculatedUnderRevenueGuidanceInEffectBeforeTopic606


Mortgage
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1720283633277.9148.171103.4425.7168.6479.046116.2844.425
Percentage of MortgageBankingIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:MortgageBankingIncome us-gaap:AdjustmentsForNewAccountingPronouncements, us-gaap:StatementBusinessSegments

us-gaap:CalculatedUnderRevenueGuidanceInEffectBeforeTopic606, trmk:GeneralBanking


Mortgage
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1720283633277.9148.171103.4425.7168.6479.046116.2844.425
Percentage of MortgageBankingIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:MortgageBankingIncome us-gaap:StatementBusinessSegments

trmk:GeneralBanking


Mortgage
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1720283633277.9148.171103.4425.7168.6479.046116.2844.4259.00810
Percentage of MortgageBankingIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:MortgageServicingRightsNet

trmk:MortgageServicingRightsNet


Mortgage
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value7.2237.9789.0778.3328.7473.6495.285.3563.5682.5073.5114.5294.1523.5674.234.1334.0573.444.3535.1814.1393.0724.2775.1645.0313.126
Percentage of MortgageServicingRightsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:NetPositiveOrNegativeIneffectivenessOnMSRFairValue us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

trmk:NetPositiveOrNegativeIneffectivenessOnMSRFairValue

trmk:MortgageServicingRightsHedge, us-gaap:Nondesignated


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1300000.0270000.0-900000.0815000.0-2000000.09900000.0-3000000.0-3700000.0-53000.0-4700000.0
Percentage of NetPositiveOrNegativeIneffectivenessOnMSRFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantificationAdjustmentOfAllowanceForCreditLossesAcquiredLoans us-gaap:MortgageLoansOnRealEstateLoanType, us-gaap:AdjustmentsForNewAccountingPronouncements

trmk:NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantificationAdjustmentOfAllowanceForCreditLossesAcquiredLoans

trmk:AllowanceForCreditLossesACL, us-gaap:AccountingStandardsUpdate201613


New
Period End2020-12-312020-09-302020-06-302020-03-31
Value0001007000.0
Percentage of NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantificationAdjustmentOfAllowanceForCreditLossesAcquiredLoans0.00.00.0100.0

trmk:NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantificationAllowanceForLoanLossesAcquiredLoansTransfer us-gaap:MortgageLoansOnRealEstateLoanType, us-gaap:AdjustmentsForNewAccountingPronouncements

trmk:NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantificationAllowanceForLoanLossesAcquiredLoansTransfer

trmk:AllowanceForCreditLossesACL, us-gaap:AccountingStandardsUpdate201613


New
Period End2020-12-312020-09-302020-06-302020-03-31
Value000815000.0
Percentage of NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantificationAllowanceForLoanLossesAcquiredLoansTransfer0.00.00.0100.0

trmk:NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantificationLoansHeldForInvestments us-gaap:MortgageLoansOnRealEstateLoanType, us-gaap:AdjustmentsForNewAccountingPronouncements

trmk:NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantificationLoansHeldForInvestments

trmk:AllowanceForCreditLossesACL, us-gaap:AccountingStandardsUpdate201613


New
Period End2020-12-312020-09-302020-06-302020-03-31
Value000-3039000.0
Percentage of NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantificationLoansHeldForInvestments0.00.00.0100.0

trmk:OffBalanceSheetCreditLossLiabilityAdoptionOfAccountingStandardAdjustment

trmk:OffBalanceSheetCreditLossLiabilityAdoptionOfAccountingStandardAdjustment


Off
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.00.00.029
Percentage of OffBalanceSheetCreditLossLiabilityAdoptionOfAccountingStandardAdjustment0.00.00.0100.0

trmk:OtherComprehensiveIncomeChangeInUnrealizedHoldingGainLossOnSecuritiesTransferredToHeldToMaturityBeforeTaxAndReclassification us-gaap:StatementEquityComponents

trmk:OtherComprehensiveIncomeChangeInUnrealizedHoldingGainLossOnSecuritiesTransferredToHeldToMaturityBeforeTaxAndReclassification

us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value736000.0711000.0734000.0804000.0778000.0861000.0753000.0849000.01256000.0747000.0852000.0973000.0
Percentage of OtherComprehensiveIncomeChangeInUnrealizedHoldingGainLossOnSecuritiesTransferredToHeldToMaturityBeforeTaxAndReclassification100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:OtherComprehensiveIncomeChangeInUnrealizedHoldingGainLossOnSecuritiesTransferredToHeldToMaturityTax us-gaap:StatementEquityComponents

trmk:OtherComprehensiveIncomeChangeInUnrealizedHoldingGainLossOnSecuritiesTransferredToHeldToMaturityTax

us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value184000.0178000.0183000.0201000.0195000.0215000.0188000.0212000.0314000.0187000.0213000.0243000.0
Percentage of OtherComprehensiveIncomeChangeInUnrealizedHoldingGainLossOnSecuritiesTransferredToHeldToMaturityTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostRetirementBenefitPlansForNetLossDueToLumpSumSettlementsNetOfTax

trmk:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostRetirementBenefitPlansForNetLossDueToLumpSumSettlementsNetOfTax


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value29000.030000.030000.00130000.034000.047000.024000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostRetirementBenefitPlansForNetLossDueToLumpSumSettlementsNetOfTax100.0100.0100.00.0100.0100.0100.0100.0

trmk:OtherComprehensiveIncomeLossSecuritiesTransfersToHeldToMaturityNetOfTax us-gaap:StatementEquityComponents

trmk:OtherComprehensiveIncomeLossSecuritiesTransfersToHeldToMaturityNetOfTax

us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value552000.0533000.0551000.0603000.0583000.0646000.0565000.0637000.0942000.0560000.0639000.0730000.0
Percentage of OtherComprehensiveIncomeLossSecuritiesTransfersToHeldToMaturityNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:OtherComprehensiveIncomeLossTransfersFromAvailableForSaleToHeldToMaturitySecuritiesNetOfTax

trmk:OtherComprehensiveIncomeLossTransfersFromAvailableForSaleToHeldToMaturitySecuritiesNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value552000.0533000.0551000.0603000.0583000.0646000.0565000.0637000.0942000.0560000.0639000.0730000.0728000.0724000.0722000.0698000.0899000.01653000.01836000.01682000.0987000.01036000.01021000.0874000.0
Percentage of OtherComprehensiveIncomeLossTransfersFromAvailableForSaleToHeldToMaturitySecuritiesNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:PaymentsToAcquireInsuranceBookOfBusiness

trmk:PaymentsToAcquireInsuranceBookOfBusiness


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0003097000.00266000.0081000.00000
Percentage of PaymentsToAcquireInsuranceBookOfBusiness0.00.00.0100.00.0100.00.0100.00.00.00.00.0

trmk:PaymentsUnderFinancingLeaseObligations

trmk:PaymentsUnderFinancingLeaseObligations


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value358000.0354000.0396000.0414000.0446000.0459000.0455000.0474000.0522000.0513000.00000
Percentage of PaymentsUnderFinancingLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

trmk:PotentialCreditLossExposure

trmk:PotentialCreditLossExposure


Potential
Period End2021-06-302021-03-312020-12-31
Value-13.626-4.9
Percentage of PotentialCreditLossExposure100.0100.0100.0

trmk:ProceedsFromIssuanceOfSubordinatedLongTermDebtGross us-gaap:LongtermDebtType

trmk:ProceedsFromIssuanceOfSubordinatedLongTermDebtGross

us-gaap:SubordinatedDebt


Proceeds
Period End2020-12-31
Value123
Percentage of ProceedsFromIssuanceOfSubordinatedLongTermDebtGross100.0

trmk:ProceedsFromPaycheckProtectionProgramLoansNet us-gaap:LoansInsuredOrGuaranteedByGovernmentAuthorities

trmk:ProceedsFromPaycheckProtectionProgramLoansNet

trmk:SmallBusinessAdministrationCARESActPaycheckProtectionProgram


Proceeds
Period End2021-06-302021-03-31
Value53301
Percentage of ProceedsFromPaycheckProtectionProgramLoansNet100.0100.0

trmk:ProvisionForLoanLossesExpensedIncludedAcquiredLoans

trmk:ProvisionForLoanLossesExpensedIncludedAcquiredLoans


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.537-10.501-4.4131.7618203.6592.8992.5921.689
Percentage of ProvisionForLoanLossesExpensedIncludedAcquiredLoans100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:ProvisionForLoanLossesExpensedIncludedAcquiredLoans us-gaap:StatementBusinessSegments

trmk:GeneralBanking


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.54-10.499-4.4113.97318183.6612.6722.5961.693
Percentage of ProvisionForLoanLossesExpensedIncludedAcquiredLoans100.6100.0100.0225.7100.089.3100.192.2100.2100.2

trmk:WealthManagement


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-0.003-0.002-0.002-2.213-0.0032.207-0.0020.227-0.004-0.004
Percentage of ProvisionForLoanLossesExpensedIncludedAcquiredLoans-0.60.00.0-125.7-0.010.7-0.17.8-0.2-0.2

trmk:ProvisionReversalForLoanLeaseAndOtherLosses

trmk:ProvisionReversalForLoanLeaseAndOtherLosses


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value0.537-19.868-5.5-1.24424273.6592.8992.5921.6891.9458.2062.7264.1114.1662.0190.3571.1572.9844.9753.2033.5524.043.771.8582.132
Percentage of ProvisionReversalForLoanLeaseAndOtherLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:ServiceChargesOnDepositAccounts

trmk:ServiceChargesOnDepositAccounts


Service
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value7.6137.3568.2837.5776.397101011101011111010111110
Percentage of ServiceChargesOnDepositAccounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:ServiceChargesOnDepositAccounts us-gaap:AdjustmentsForNewAccountingPronouncements

us-gaap:AccountingStandardsUpdate201409


Service
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value7.6137.3568.2837.5776.397101011101011111010111110
Percentage of ServiceChargesOnDepositAccounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:ServiceChargesOnDepositAccounts us-gaap:AdjustmentsForNewAccountingPronouncements, us-gaap:StatementBusinessSegments

us-gaap:AccountingStandardsUpdate201409, trmk:GeneralBanking


Service
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value7.5917.3388.2647.5576.38101011101011111010111110
Percentage of ServiceChargesOnDepositAccounts99.799.899.899.799.799.899.899.899.899.8100.0100.0100.099.8100.0100.0100.0

us-gaap:AccountingStandardsUpdate201409, trmk:WealthManagement


Service
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.0220.0180.0190.020.0170.020.0230.0240.0220.0250.0010.0010.0010.0240.0010.001
Percentage of ServiceChargesOnDepositAccounts0.30.20.20.30.30.20.20.20.20.20.00.00.00.20.00.0

trmk:ServiceChargesOnDepositAccounts us-gaap:StatementBusinessSegments

trmk:GeneralBanking


Service
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value7.5917.3388.2647.5576.38101011101011111010111110
Percentage of ServiceChargesOnDepositAccounts99.799.899.899.799.799.899.899.899.899.8100.0100.0100.099.8100.0100.0100.0

trmk:WealthManagement


Service
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.0220.0180.0190.020.0170.020.0230.0240.0220.0250.0010.0010.0010.0240.0010.001
Percentage of ServiceChargesOnDepositAccounts0.30.20.20.30.30.20.20.20.20.20.00.00.00.20.00.0

trmk:ServicesAndFees

trmk:ServicesAndFees


Services
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value21222220201919181816171616151515151514141414131415141414141314131213121111101111101010101010
Percentage of ServicesAndFees100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:TransferOfLongTermFHLBAdvanceToShortTerm

trmk:TransferOfLongTermFHLBAdvanceToShortTerm


Transfer
Period End2020-12-31
Value0.0
Percentage of TransferOfLongTermFHLBAdvanceToShortTerm0.0

trmk:WealthManagementIncome

trmk:WealthManagementIncome


Wealth
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value8.9468.4167.8387.6797.5718.5377.7637.6917.7427.4837.5047.7897.4787.5677.7237.537.6747.4137.5057.5718.0097.4077.8317.797.7587.998.468.0387.718.1358.1457.526.946.8756.1815.6125.7625.5015.2235.9935.765.9865.765.1995.5585.355
Percentage of WealthManagementIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:WealthManagementIncome us-gaap:AdjustmentsForNewAccountingPronouncements

us-gaap:AccountingStandardsUpdate201409


Wealth
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value8.9468.4167.8387.6797.5718.5377.7637.6917.7427.4837.5047.7897.4787.5677.7237.537.674
Percentage of WealthManagementIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:WealthManagementIncome us-gaap:AdjustmentsForNewAccountingPronouncements, us-gaap:StatementBusinessSegments

us-gaap:AccountingStandardsUpdate201409, trmk:GeneralBanking


Wealth
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value0.0020.0180.0350.0540.0790.0860.0990.0920.0970.0910.0860.070.0930.0470.00.0640.083
Percentage of WealthManagementIncome0.00.20.40.71.01.01.31.21.31.21.10.91.20.60.00.81.1

us-gaap:AccountingStandardsUpdate201409, trmk:WealthManagement


Wealth
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value8.9448.3987.8037.6257.4928.4517.6647.5997.6457.3927.4187.7197.3857.527.7237.4667.591
Percentage of WealthManagementIncome100.099.899.699.399.099.098.798.898.798.898.999.198.899.4100.099.298.9

trmk:WealthManagementIncome us-gaap:StatementBusinessSegments

trmk:GeneralBanking


Wealth
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.0020.0180.0350.0540.0790.0860.0990.0920.0970.0910.0860.070.0930.0470.00.0640.0830.063
Percentage of WealthManagementIncome0.00.20.40.71.01.01.31.21.31.21.10.91.20.60.00.81.10.8

trmk:WealthManagement


Wealth
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value8.9448.3987.8037.6257.4928.4517.6647.5997.6457.3927.4187.7197.3857.527.7237.4667.5917.35
Percentage of WealthManagementIncome100.099.899.699.399.099.098.798.898.798.898.999.198.899.4100.099.298.999.2

trmk:WriteDownOfAllowanceAfterInitialRecognitionOfForeclosure

trmk:WriteDownOfAllowanceAfterInitialRecognitionOfForeclosure


Write
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value0.2210.0470.40.7270.5160.3571.00.30.110.99-1.0270.9350.1770.7880.70.40.71.50.70.71.91.10.51.4070.1110.8822.91.52.21.10.21.12.81.61.80.71.72.4
Percentage of WriteDownOfAllowanceAfterInitialRecognitionOfForeclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:WriteDownsOnRealEstateExcludingCoveredRealEstate

trmk:WriteDownsOnRealEstateExcludingCoveredRealEstate


Write
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value1295000.0150000.0113000.0829000.0-152000.0996000.0740000.0137000.011000.01656000.0-984000.0892000.0177000.0788000.0703000.0432000.0697000.01464000.0737000.0671000.01851000.01140000.0531000.01378000.0111000.0882000.0
Percentage of WriteDownsOnRealEstateExcludingCoveredRealEstate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccretionAmortizationOfDiscountsAndPremiumsInvestments

us-gaap:AccretionAmortizationOfDiscountsAndPremiumsInvestments


Accretion
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-5350000.0-5430000.0-4789000.0-3792000.0-2748000.0-1918000.0-2090000.0-1781000.0-1911000.0-2007000.0-1984000.0-2111000.0-2504000.0-2582000.0-2880000.0-2709000.0-2763000.0-2612000.0-2831000.0-2560000.0-2186000.0-2087000.0-1382000.0-2056000.0-2305000.0-2050000.0-1890000.0-1847000.0-2006000.0-1958000.0-1037000.0-1611000.0-1911000.0-1868000.0-1509000.0-2035000.0-1846000.0-1618000.0-3095000.0-9234000.01583000.01559000.05351000.0-2958000.0442000.0429000.0
Percentage of AccretionAmortizationOfDiscountsAndPremiumsInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation


Adjustments
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value15000.059000.01020000.034000.01000.01604000.0-1000.05000.042000.01380000.065000.0
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value16000.064000.01037000.035000.03000.01629000.05000.043000.01403000.0
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation106.7108.5101.7102.9300.0101.6100.0102.4101.7

us-gaap:CommonStock


Adjustments
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-06-302018-03-31
Value-1000.0-5000.0-17000.0-1000.0-2000.0-25000.0-1000.0-23000.0
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation-6.7-8.5-1.7-2.9-200.0-1.6-2.4-1.7

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationOtherLongtermIncentivePlansRequisiteServicePeriodRecognition

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationOtherLongtermIncentivePlansRequisiteServicePeriodRecognition


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value1214000.02181000.09104000.0-1239000.0-1274000.0-1394000.0-1234000.0-1272000.0-1279000.0-1002000.0848000.0-1158000.0-1079000.0785000.01059000.01076000.01222000.0952000.0943000.0941000.0839000.0961000.0930000.0957000.0930000.0851000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationOtherLongtermIncentivePlansRequisiteServicePeriodRecognition100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationOtherLongtermIncentivePlansRequisiteServicePeriodRecognition us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1214000.02181000.0-1239000.0-1274000.0-1394000.0-1272000.0-1279000.0-1002000.0-1158000.0-1079000.0-785000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationOtherLongtermIncentivePlansRequisiteServicePeriodRecognition100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0-100.0

us-gaap:AssetAtFairValueChangesInFairValueResultingFromChangesInAssumptions

us-gaap:AssetAtFairValueChangesInFairValueResultingFromChangesInAssumptions


Asset
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-4.465130.9510.06-3.159-23.9994.048-8.054-8.209-8.863-6.5372.6151.7439.5211.168-2.393-1.2911.466130.381-7.033-6.8662.011-4.1416.076-2.368-4.1420.701-3.038-0.7233.9370.2876.4671.127-0.418-3.282-5.9260.248-2.842-7.614-4.9310.2575.87-3.115
Percentage of AssetAtFairValueChangesInFairValueResultingFromChangesInAssumptions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BankOwnedLifeInsuranceIncome

us-gaap:BankOwnedLifeInsuranceIncome


Bank
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1202000.01216000.01254000.01301000.01252000.01292000.01353000.01524000.01361000.01354000.01364000.01355000.01406000.01233000.01272000.01266000.01260000.01227000.01230000.01224000.01203000.01226000.01226000.01228000.01191000.01179000.01202000.01189000.01171000.01166000.0936000.0176000.0176000.0158000.0
Percentage of BankOwnedLifeInsuranceIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockDividendsPerShareCashPaid

us-gaap:CommonStockDividendsPerShareCashPaid


Common
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.230.23
Percentage of CommonStockDividendsPerShareCashPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 us-gaap:StatementScenario, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1

srt:ScenarioForecast, us-gaap:SubordinatedDebt


Debt
Period End2025-12-01
Value338.7
Percentage of DebtInstrumentBasisSpreadOnVariableRate1100.0

us-gaap:DefinedBenefitPlanActuarialGainLoss us-gaap:RetirementPlanName, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanActuarialGainLoss

trmk:TrustmarkCorporationPensionPlanForCertainEmployeesOfAcquiredFinancialInstitutions, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value1121000.0-82000.0-82000.0-81000.01153000.0-92000.0-93000.0-93000.0-143000.0-143000.0-143000.0-142000.0-142000.0-142000.0-565000.0-565000.0-714000.0-714000.0
Percentage of DefinedBenefitPlanActuarialGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanActuarialGainLoss us-gaap:RetirementPlanType

us-gaap:OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefit


Defined
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value4887000.0-237000.0-236000.0-246000.05969000.0-155000.0-154000.0-162000.0-220000.0-218000.0-220000.0-226000.0-215000.0-214000.0-215000.0-222000.0-215000.0-214000.0
Percentage of DefinedBenefitPlanActuarialGainLoss436.0289.0287.8303.7517.7168.5165.6174.2153.8152.4153.8159.2151.4150.738.139.330.130.0

us-gaap:DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit us-gaap:RetirementPlanName, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit

trmk:TrustmarkCorporationPensionPlanForCertainEmployeesOfAcquiredFinancialInstitutions, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-06-302020-03-31
Value-148000.0-149000.0-82000.0-81000.0
Percentage of DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit us-gaap:RetirementPlanType

us-gaap:OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-06-302020-03-31
Value-295000.0-306000.0-236000.0-246000.0
Percentage of DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit199.3205.4287.8303.7

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit

us-gaap:OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value28000.028000.038000.037000.038000.037000.063000.062000.062000.063000.062000.063000.062000.063000.062000.063000.062000.063000.062000.063000.0
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets us-gaap:RetirementPlanName, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

trmk:TrustmarkCorporationPensionPlanForCertainEmployeesOfAcquiredFinancialInstitutions, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value32000.033000.038000.039000.039000.038000.050000.051000.050000.051000.056000.057000.057000.057000.050000.051000.0108000.0108000.0427000.0426000.0
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanInterestCost us-gaap:RetirementPlanName, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanInterestCost

trmk:TrustmarkCorporationPensionPlanForCertainEmployeesOfAcquiredFinancialInstitutions, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value43000.043000.060000.060000.061000.060000.091000.090000.090000.090000.083000.083000.083000.083000.067000.0102000.0627000.0665000.0848000.0847000.0
Percentage of DefinedBenefitPlanInterestCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanInterestCost us-gaap:RetirementPlanType

us-gaap:OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value277000.0293000.0387000.0388000.0387000.0414000.0500000.0502000.0501000.0541000.0456000.0457000.0457000.0495000.0514000.0514000.0514000.0561000.0593000.0542000.0
Percentage of DefinedBenefitPlanInterestCost644.2681.4645.0646.7634.4690.0549.5557.8556.7601.1549.4550.6550.6596.4767.2503.982.084.469.964.0

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost us-gaap:RetirementPlanName, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

trmk:TrustmarkCorporationPensionPlanForCertainEmployeesOfAcquiredFinancialInstitutions, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value0.2220.2220.2050.2070.2070.1670.3590.2310.2490.2160.2790.2790.2790.2770.240.257181.1852.0131.704
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost us-gaap:RetirementPlanType

us-gaap:OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value0.6190.6460.6820.6810.6810.7160.7460.7460.7450.7930.7670.7670.7680.8130.8260.8270.8260.8810.9440.892
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost278.8291.0332.7329.0329.0428.7207.8322.9299.2367.1274.9274.9275.3293.5344.2321.84.474.346.952.3

us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1 us-gaap:RetirementPlanName, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1

trmk:TrustmarkCorporationPensionPlanForCertainEmployeesOfAcquiredFinancialInstitutions, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-39000.0-40000.0-40000.00-171000.0-47000.0-63000.0-31000.0-40000.0-41000.0-40000.0-40000.00000-772000.0-463000.0
Percentage of DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0100.0100.0

us-gaap:DefinedBenefitPlanServiceCost us-gaap:RetirementPlanName, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanServiceCost

trmk:TrustmarkCorporationPensionPlanForCertainEmployeesOfAcquiredFinancialInstitutions, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value63000.063000.063000.064000.063000.064000.052000.053000.053000.053000.069000.069000.070000.069000.063000.064000.063000.063000.0106000.0106000.0
Percentage of DefinedBenefitPlanServiceCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanServiceCost us-gaap:RetirementPlanType

us-gaap:OtherPensionPlansPostretirementOrSupplementalPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value19000.019000.019000.019000.020000.019000.027000.027000.028000.027000.029000.029000.029000.029000.035000.036000.035000.035000.074000.073000.0
Percentage of DefinedBenefitPlanServiceCost30.230.230.229.731.729.751.950.952.850.942.042.041.442.055.656.255.655.669.868.9

us-gaap:DepreciationAmortizationAndAccretionNet

us-gaap:DepreciationAmortizationAndAccretionNet


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value11111110108.9969.835109.7869.3379.4289.978109.3769.69109.6989.0319.439.5048.9588.7219.0619.4669.4499.088.9849.1329.28.7569.3539.4839.9378.387.5577.8627.2676.5896.756.6116.0595.8537.026.86.0285.798
Percentage of DepreciationAmortizationAndAccretionNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAmortizationAndAccretionNet us-gaap:StatementBusinessSegments

trmk:GeneralBanking


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value11101110108.7949.65109.5939.1399.2299.7599.9899.2119.5149.8639.4978.8369.2099.2748.7248.4858.8169.2099.1728.8758.4789.0649.1829.6368.0797.2277.5146.9126.2236.3646.2075.6515.4186.5626.3355.563
Percentage of DepreciationAmortizationAndAccretionNet97.797.697.697.597.897.898.198.098.097.997.997.898.398.298.298.197.997.897.797.697.497.397.397.397.197.796.896.996.897.096.495.695.695.194.494.393.993.392.693.593.292.3

trmk:Insurance


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value0.190.1940.20.1940.1710.1350.120.1410.1260.1290.1350.1550.1430.1390.1490.1590.1640.1580.1780.1860.1910.1920.2010.2130.2280.1590.230.2480.2580.260.2590.2880.3060.3120.3190.3390.3550.3570.3730.390.3960.398
Percentage of DepreciationAmortizationAndAccretionNet1.71.71.81.91.61.51.21.31.31.41.41.61.41.51.51.61.71.71.92.02.12.22.22.32.41.82.62.72.72.63.13.83.94.34.85.05.45.96.45.65.86.6

trmk:WealthManagement


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value0.0660.0680.0710.0690.0670.0670.0650.0660.0670.0690.0640.0640.0260.0260.0270.030.0370.0370.0430.0440.0430.0440.0440.0440.0490.0460.0480.0410.0430.0410.0420.0420.0420.0430.0470.0470.0490.0510.0620.0680.0690.067
Percentage of DepreciationAmortizationAndAccretionNet0.60.60.60.70.60.70.70.60.70.70.70.60.30.30.30.30.40.40.50.50.50.50.50.50.50.50.50.40.50.40.50.60.50.60.70.70.70.81.11.01.01.1

us-gaap:DividendsCommonStock

us-gaap:DividendsCommonStock


Dividends
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1414141414141415151515151515151515151515151515151515151515151515151515141474-14.874-14.866-103.77574-14.825-14.817
Percentage of DividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStock us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Dividends
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1414141414141415151515
Percentage of DividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquipmentExpense

us-gaap:EquipmentExpense


Equipment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value5.5676.2446.2135.8285.625.6165.885.9715.9585.9246.3296.26.2026.0995.9966.2976.1625.9986.1726.0635.8966.0946.1055.8775.9035.9745.9115.6756.1366.1386.46.2716.1935.6745.2885.0955.1834.9125.1395.0384.8565.1444.2294.3564.2474.303
Percentage of EquipmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1 us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1

trmk:MortgageServicingRights, us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-9.4948.593-4.226-4.53-7.373-26.6061.098-11.623-11.127-11.261-9.289-0.566-1.5917.014-1.438-5.284-4.187-0.92110-2.481-9.533-8.871-0.08-6.7763.488-4.581
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeFinancialInstrumentsAssets, us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value3.1092.7487.83610129.6061.0341.8522.3151.5741.0450.6471.1651.5330.7290.8590.6221.9550.6422.1464.2433.0970.7072.4781.3052.411.0461.0151.6910.8020.1962.8491.8932.8163.185.372
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1-32.732.0-185.4-230.7-173.3-36.194.2-15.9-20.8-14.0-11.2-114.3-73.221.9-50.7-16.3-14.9-212.36.2-86.5-44.5-34.9-883.8-36.637.4-52.60.00.00.00.00.00.00.00.00.00.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases

trmk:MortgageServicingRights, us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value7.2237.9789.0778.3328.7473.6495.285.3563.5682.5073.5114.5294.1523.5674.234.1334.0573.444.3535.1814.1393.0724.2785.1635.0313.126
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales

us-gaap:DerivativeFinancialInstrumentsAssets, us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value3.3298.20310128.2721.2191.8112.1811.5350.9960.7511.2061.3860.760.8350.8511.7690.8112.3884.0712.8550.9262.31.3932.2721.1211.0871.8840.2980.1122.1171.1493.4833.1635.2019.35-1.374-1.318-1.849-0.201-0.552-1.001-1.826-1.657
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueOptionChangesInFairValueGainLoss1

us-gaap:FairValueOptionChangesInFairValueGainLoss1


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value2.3-10.6-0.84.1-0.4457.7-0.8-0.5442.20.668-414.6-1.32.2-0.504-0.5-0.2020.0583.6-5.1-1.11.02.8-2.5573.6-2.20.382
Percentage of FairValueOptionChangesInFairValueGainLoss1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseInterestExpense

us-gaap:FinanceLeaseInterestExpense


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value56000.057000.060000.062000.065000.067000.071000.075000.080000.081000.0
Percentage of FinanceLeaseInterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseInterestPaymentOnLiability

us-gaap:FinanceLeaseInterestPaymentOnLiability


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value56000.057000.060000.062000.065000.067000.0-472000.0253000.0261000.0265000.0
Percentage of FinanceLeaseInterestPaymentOnLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeasePrincipalPayments

us-gaap:FinanceLeasePrincipalPayments


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value358000.0354000.0396000.0414000.0446000.0459000.0455000.0474000.0522000.0513000.0
Percentage of FinanceLeasePrincipalPayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseRightOfUseAssetAmortization

us-gaap:FinanceLeaseRightOfUseAssetAmortization


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value387000.0384000.0429000.0449000.0481000.0497000.0497000.0520000.0642000.0503000.0
Percentage of FinanceLeaseRightOfUseAssetAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery us-gaap:MortgageLoansOnRealEstateLoanType

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery

trmk:AllowanceForCreditLossesACL


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value3.663.6312.5062.3252.3092.4682.0092.681.8452.137
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery us-gaap:MortgageLoansOnRealEstateLoanType, us-gaap:ClassOfFinancingReceivableTypeOfBorrower, us-gaap:Collateral, us-gaap:FinancingReceivablePortfolioSegment

trmk:AllowanceForCreditLossesACL, us-gaap:CommercialBorrower, us-gaap:RealEstate, trmk:ConstructionLandDevelopmentAndOtherFinancingReceivable


Financing
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.0870.4430.0920.094
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery3.519.14.03.8

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery us-gaap:MortgageLoansOnRealEstateLoanType, us-gaap:Collateral, us-gaap:FinancingReceivablePortfolioSegment

trmk:AllowanceForCreditLossesACL, trmk:OtherLoansSecuredByRealEstate, trmk:OtherConstruction


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.0430.0010.1380.030.0210.019
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery1.20.05.51.30.90.8

trmk:AllowanceForCreditLossesACL, trmk:OtherLoansSecuredByRealEstate, trmk:ResidentialFinancingReceivable


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.0080.10.0790.0180.0130.093
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery0.22.83.20.80.63.8

trmk:AllowanceForCreditLossesACL, us-gaap:RealEstate, trmk:ConstructionLandDevelopmentAndOtherFinancingReceivable


Financing
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.3130.7660.0920.094
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery8.621.14.03.8

trmk:AllowanceForCreditLossesACL, us-gaap:RealEstate, trmk:NonresidentialPropertiesFinancingReceivables


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value1.0270.030.0220.0180.4450.061
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery28.10.80.90.819.32.5

trmk:AllowanceForCreditLossesACL, us-gaap:RealEstate, trmk:OtherRealEstateSecuredFinancingReceivable


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.0050.0060.0080.0420.0120.006
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery0.10.20.31.80.50.2

trmk:AllowanceForCreditLossesACL, us-gaap:RealEstate, trmk:OtherResidentialFinancingReceivable


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.1810.0710.1570.0750.0830.063
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery4.92.06.33.23.62.6

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery us-gaap:MortgageLoansOnRealEstateLoanType, us-gaap:FinancingReceivablePortfolioSegment

trmk:AllowanceForCreditLossesACL, trmk:OtherCommercialLoansFinancingReceivable


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value1.0441.0080.9510.8770.9841.117
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery28.527.837.937.742.645.3

trmk:AllowanceForCreditLossesACL, us-gaap:CommercialPortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.6521.2870.5560.4470.1910.542
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery17.835.422.219.28.322.0

trmk:AllowanceForCreditLossesACL, us-gaap:ConsumerPortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.3870.3620.5080.3750.4680.473
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery10.610.020.316.120.319.2

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs us-gaap:MortgageLoansOnRealEstateLoanType

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs

trmk:AllowanceForCreditLossesACL


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value4.8281.2452.7971.2631.875.5454.6192.8922.9374.033
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs us-gaap:MortgageLoansOnRealEstateLoanType, us-gaap:ClassOfFinancingReceivableTypeOfBorrower, us-gaap:Collateral, us-gaap:FinancingReceivablePortfolioSegment

trmk:AllowanceForCreditLossesACL, us-gaap:CommercialBorrower, us-gaap:RealEstate, trmk:ConstructionLandDevelopmentAndOtherFinancingReceivable


Financing
Period End2020-12-312020-09-302020-06-30
Value0.0050.00.007
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs0.20.00.4

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs us-gaap:MortgageLoansOnRealEstateLoanType, us-gaap:Collateral, us-gaap:FinancingReceivablePortfolioSegment

trmk:AllowanceForCreditLossesACL, trmk:OtherLoansSecuredByRealEstate, trmk:ResidentialFinancingReceivable


Financing
Period End2021-06-302020-12-312020-09-302020-06-302020-03-31
Value0.0040.0240.00.00.019
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs0.10.90.00.00.3

trmk:AllowanceForCreditLossesACL, us-gaap:RealEstate, trmk:NonresidentialPropertiesFinancingReceivables


Financing
Period End2021-06-302020-12-312020-09-302020-06-302020-03-31
Value0.0791.2140.1150.02.448
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs1.643.49.10.044.1

trmk:AllowanceForCreditLossesACL, us-gaap:RealEstate, trmk:OtherRealEstateSecuredFinancingReceivable


Financing
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.00.00.00.008
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs0.00.00.00.1

trmk:AllowanceForCreditLossesACL, us-gaap:RealEstate, trmk:OtherResidentialFinancingReceivable


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.0580.026-0.0010.0180.0360.064
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs1.22.1-0.01.41.91.2

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs us-gaap:MortgageLoansOnRealEstateLoanType, us-gaap:FinancingReceivablePortfolioSegment

trmk:AllowanceForCreditLossesACL, trmk:OtherCommercialLoansFinancingReceivable


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.6220.7541.0540.6750.8591.334
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs12.960.637.753.445.924.1

trmk:AllowanceForCreditLossesACL, us-gaap:CommercialPortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value3.6740.0230.2070.0710.2970.982
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs76.11.87.45.615.917.7

trmk:AllowanceForCreditLossesACL, us-gaap:ConsumerPortfolioSegment


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.3910.4420.2940.3840.6710.69
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs8.135.510.530.435.912.4

us-gaap:FinancingReceivableModificationsPostModificationRecordedInvestment2 us-gaap:Collateral, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanRestructuringModification

us-gaap:FinancingReceivableModificationsPostModificationRecordedInvestment2

trmk:OtherLoansSecuredByRealEstate, trmk:ResidentialFinancingReceivable, trmk:TroubledDebtRestructurings


Financing
Period End2021-06-30
Value0.123
Percentage of FinancingReceivableModificationsPostModificationRecordedInvestment2100.0

us-gaap:RealEstate, trmk:ConstructionLandDevelopmentAndOtherFinancingReceivable, trmk:TroubledDebtRestructurings


Financing
Period End2021-06-30
Value5.582
Percentage of FinancingReceivableModificationsPostModificationRecordedInvestment24538.2

us-gaap:RealEstate, trmk:NonresidentialPropertiesFinancingReceivables, trmk:TroubledDebtRestructurings


Financing
Period End2021-06-302020-06-30
Value0.3770.139
Percentage of FinancingReceivableModificationsPostModificationRecordedInvestment2306.50.0

us-gaap:RealEstate, trmk:OtherResidentialFinancingReceivable, trmk:TroubledDebtRestructurings


Financing
Period End2021-06-302020-06-30
Value0.0370.21
Percentage of FinancingReceivableModificationsPostModificationRecordedInvestment230.10.0

us-gaap:FinancingReceivableModificationsPostModificationRecordedInvestment2 us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanRestructuringModification

trmk:NonresidentialPropertiesFinancingReceivables, trmk:TroubledDebtRestructurings


Financing
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302017-12-312017-09-302015-12-312015-09-302015-06-30
Value0.9720.00.1390.00.05.0550.00.4260.1010.03.512
Percentage of FinancingReceivableModificationsPostModificationRecordedInvestment20.00.00.00.00.00.00.00.00.00.00.0

trmk:OtherCommercialLoansFinancingReceivable, trmk:TroubledDebtRestructurings


Financing
Period End2021-06-30
Value4.929
Percentage of FinancingReceivableModificationsPostModificationRecordedInvestment24007.3

trmk:OtherResidentialFinancingReceivable, trmk:TroubledDebtRestructurings


Financing
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value0.1260.1290.0890.210.5010.1020.7920.086
Percentage of FinancingReceivableModificationsPostModificationRecordedInvestment20.00.00.00.00.00.00.00.0

trmk:StateAndOtherPoliticalSubdivisionLoansFinancingReceivable, trmk:TroubledDebtRestructurings


Financing
Period End2020-12-312020-09-302020-06-30
Value0.00.03.872
Percentage of FinancingReceivableModificationsPostModificationRecordedInvestment20.00.00.0

us-gaap:CommercialPortfolioSegment, trmk:TroubledDebtRestructurings


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1.00.0140.0350.0470.01.5820.00.00.09.0544.071109.2582.4710.092120.244
Percentage of FinancingReceivableModificationsPostModificationRecordedInvestment2813.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ConsumerPortfolioSegment, trmk:TroubledDebtRestructurings


Financing
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302016-12-312016-09-302016-06-30
Value0.00.00.0060.020.00.00.00.030.00.00.0040.00.00.002
Percentage of FinancingReceivableModificationsPostModificationRecordedInvestment20.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FinancingReceivableModificationsPostModificationRecordedInvestment2 us-gaap:LoanRestructuringModification

trmk:TroubledDebtRestructurings


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-09-302014-06-30
Value120.141.1360.1364.2272.1030.7580.1025.8479.176.07910102.5890.845131.0830.663110.00.6850.0710.2940.0353.5940.1910.273
Percentage of FinancingReceivableModificationsPostModificationRecordedInvestment29795.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FinancingReceivableModificationsPreModificationRecordedInvestment2 us-gaap:Collateral, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanRestructuringModification

us-gaap:FinancingReceivableModificationsPreModificationRecordedInvestment2

trmk:OtherLoansSecuredByRealEstate, trmk:ResidentialFinancingReceivable, trmk:TroubledDebtRestructurings


Financing
Period End2021-06-30
Value0.123
Percentage of FinancingReceivableModificationsPreModificationRecordedInvestment2100.0

us-gaap:RealEstate, trmk:ConstructionLandDevelopmentAndOtherFinancingReceivable, trmk:TroubledDebtRestructurings


Financing
Period End2021-06-30
Value5.582
Percentage of FinancingReceivableModificationsPreModificationRecordedInvestment24538.2

us-gaap:RealEstate, trmk:NonresidentialPropertiesFinancingReceivables, trmk:TroubledDebtRestructurings


Financing
Period End2021-06-302020-06-30
Value0.3770.139
Percentage of FinancingReceivableModificationsPreModificationRecordedInvestment2306.50.0

us-gaap:RealEstate, trmk:OtherResidentialFinancingReceivable, trmk:TroubledDebtRestructurings


Financing
Period End2021-06-302020-06-30
Value0.0370.206
Percentage of FinancingReceivableModificationsPreModificationRecordedInvestment230.10.0

us-gaap:FinancingReceivableModificationsPreModificationRecordedInvestment2 us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanRestructuringModification

trmk:NonresidentialPropertiesFinancingReceivables, trmk:TroubledDebtRestructurings


Financing
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302017-12-312017-09-302015-12-312015-09-302015-06-30
Value0.9720.00.1390.00.05.0550.00.4260.1010.03.512
Percentage of FinancingReceivableModificationsPreModificationRecordedInvestment20.00.00.00.00.00.00.00.00.00.00.0

trmk:OtherCommercialLoansFinancingReceivable, trmk:TroubledDebtRestructurings


Financing
Period End2021-06-30
Value4.929
Percentage of FinancingReceivableModificationsPreModificationRecordedInvestment24007.3

trmk:OtherResidentialFinancingReceivable, trmk:TroubledDebtRestructurings


Financing
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value0.1260.1290.0870.2060.5010.1130.7930.086
Percentage of FinancingReceivableModificationsPreModificationRecordedInvestment20.00.00.00.00.00.00.00.0

trmk:StateAndOtherPoliticalSubdivisionLoansFinancingReceivable, trmk:TroubledDebtRestructurings


Financing
Period End2020-12-312020-09-302020-06-30
Value0.00.03.902
Percentage of FinancingReceivableModificationsPreModificationRecordedInvestment20.00.00.0

us-gaap:CommercialPortfolioSegment, trmk:TroubledDebtRestructurings


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1.00.0140.0350.0480.01.5820.00.00.1139.0544.071119.2752.4710.092120.244
Percentage of FinancingReceivableModificationsPreModificationRecordedInvestment2813.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ConsumerPortfolioSegment, trmk:TroubledDebtRestructurings


Financing
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302016-12-312016-09-302016-06-30
Value0.00.00.0060.020.00.00.00.030.00.00.0040.00.00.002
Percentage of FinancingReceivableModificationsPreModificationRecordedInvestment20.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FinancingReceivableModificationsPreModificationRecordedInvestment2 us-gaap:LoanRestructuringModification

trmk:TroubledDebtRestructurings


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-09-302014-06-30
Value120.141.1360.1354.2532.1030.750.1135.9619.176.0811102.5890.846131.0780.675110.00.6850.0710.2940.0353.5940.1910.278
Percentage of FinancingReceivableModificationsPreModificationRecordedInvestment29795.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1 us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LoanRestructuringModification

us-gaap:FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1

trmk:NonresidentialPropertiesFinancingReceivables, trmk:TroubledDebtRestructurings


Financing
Period End2021-03-312020-12-312020-09-30
Value0.1390.00.0
Percentage of FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1100.00.00.0

trmk:OtherResidentialFinancingReceivable, trmk:TroubledDebtRestructurings


Financing
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.156-0.4060.064-0.0260.4460.40.0-0.6380.684
Percentage of FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1112.20.00.00.00.00.00.00.00.0

us-gaap:CommercialPortfolioSegment, trmk:TroubledDebtRestructurings


Financing
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.00.0-0.1120.194-0.062-7.703-7.221151.193
Percentage of FinancingReceivableModificationsSubsequentDefaultRecordedInvestment10.00.00.00.00.00.00.00.00.0

us-gaap:FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1 us-gaap:LoanRestructuringModification

trmk:TroubledDebtRestructurings


Financing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value4.7120.295-0.4060.0640.0010.640.338-7.703-7.882151.608
Percentage of FinancingReceivableModificationsSubsequentDefaultRecordedInvestment10.0212.20.00.00.00.00.00.00.00.00.0

us-gaap:GainLossOnSaleOfLoansAndLeases

us-gaap:GainLossOnSaleOfLoansAndLeases


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value19253331237.0859.7458.4585.5223.5765.2066.415.4144.5855.35.0835.03.556.0546.4065.482.5914.6524.4735.1153.7132.9093.2692.7451.8392.2026.4617.59410129.1136.3116.464.63212-1.852-3.101-24.87915-1.897-3.755
Percentage of GainLossOnSaleOfLoansAndLeases100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnSaleOfMortgageLoans

us-gaap:GainLossOnSaleOfMortgageLoans


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value141928343414128.55.53.65.26.45.44.65.35.05.03.66.06.45.52.64.74.55.13.72.93.32.81.82.26.47.610
Percentage of GainLossOnSaleOfMortgageLoans100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainsLossesOnSalesOfInvestmentRealEstate

us-gaap:GainsLossesOnSalesOfInvestmentRealEstate


Gains
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-41000.059000.0-133000.0-185000.0-70000.0-122000.0123000.0122000.0-526000.0224000.0588000.0414000.0365000.0200000.01100000.0470000.0801000.02691000.0847000.01812000.01879000.0-152000.03688000.0-1420000.06544000.0-2211000.0-1051000.0415000.0-991000.0-142000.0237000.015000.0-104000.0299000.0-58000.0-416000.01131000.0-78000.0208000.0344000.0370000.0197000.0
Percentage of GainsLossesOnSalesOfInvestmentRealEstate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainsLossesOnSalesOfOtherRealEstate

us-gaap:GainsLossesOnSalesOfOtherRealEstate


Gains
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-41000.059000.01285000.0-133000.0-185000.0-70000.0-415000.0-122000.0124000.0122000.0
Percentage of GainsLossesOnSalesOfOtherRealEstate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInDeposits

us-gaap:IncreaseDecreaseInDeposits


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value248334826-283.061929330-8.626-312.44631170407-115.52596398345-191.64915248370154-102.11945175-379.77-114.816208185-347.141-261.75326272-30.358-91.83927292-191.816-94.889315-3.361-62.611.71138119-114.058-7.659-41.412
Percentage of IncreaseDecreaseInDeposits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet

us-gaap:IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-3.815-3.5281083-351.566165-120.6923244.933-3.604-436.3948.974203-194.994-75.77637-16.267-15.48224-91.41813925-93.16256-45.72579-164.308482997.754-90.878-31.556154-69.06-119.88211142-349.6222736-11.226-149.21967140-79.344-81.321
Percentage of IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingAssets

us-gaap:IncreaseDecreaseInOtherOperatingAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-2.553-21.07-3.4887.429-4.1149-0.51216131.5762.4126.5661.634-8.7216.148-7.469-15.755-6.375-0.704115.4523.511-10.314-8.016-8.189-2.2750.403-5.3887.99-7.8911783-53.7744582-40.102-10.6223.946.692-55.318-15.0672925-60.2011818
Percentage of IncreaseDecreaseInOtherOperatingAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-18.8989.0968.0027.158-1.287-0.20414-1.2089.436-9.853-1.2912.6724.721-7.3794.8889.8811.017-6.6931.8796.2626.328-7.1857.7591.2767.412-9.8395.0774.74-1.655-14.1721.112-0.3672.676-5.74-32.05939-1.241106.5072.3363.494-9.72811-1.016-0.147-10.0
Percentage of IncreaseDecreaseInOtherOperatingLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestAndDividendIncomeOperating

us-gaap:InterestAndDividendIncomeOperating


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value125109118114114120124130130125124124120115116116111104105103102100105102101102103111110100108104105958892949598969997100101103103
Percentage of InterestAndDividendIncomeOperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio

us-gaap:InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value90909394961061081131111061041029691918984797776737270696866
Percentage of InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseDeposits

us-gaap:InterestExpenseDeposits


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value4.635.2236.3637.4378.7314172021191714129.4917.2846.3815.1073.9453.383.2083.1223.0383.03.1473.2043.2473.3823.6063.974.3654.7684.975.0714.9095.0615.7256.4657.3537.1849.4559.9369.71910111213
Percentage of InterestExpenseDeposits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase

us-gaap:InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.0590.0560.0560.0320.0420.6250.5040.5470.0810.2881.5281.3481.250.6621.1161.3011.0370.6980.4710.4110.4040.4310.2740.2050.1790.1430.1840.180.110.0760.1040.1060.0880.0810.140.1350.1420.1710.1950.2160.2160.3380.4030.2940.260.226
Percentage of InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseOther

us-gaap:InterestExpenseOther


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.8131.8571.1270.6880.8810.860.8260.830.8310.8250.8941.4671.7133.3944.5554.523.6282.6732.6622.6032.4282.3891.9871.8111.6141.6491.511.4251.3751.3631.371.3891.5131.491.3461.3581.3591.4141.9620.8421.421.5531.5351.6311.5971.592
Percentage of InterestExpenseOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestIncomeExpenseAfterProvisionForLoanLoss

us-gaap:InterestIncomeExpenseAfterProvisionForLoanLoss


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value11811211510486831011051051031039810297991011019695929391959395959910210195999810591807984838277797876757872
Percentage of InterestIncomeExpenseAfterProvisionForLoanLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell

us-gaap:InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell


Interest
Period End2020-12-312020-09-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value01000.01000.023000.0214000.02000.04000.03000.05000.02000.07000.014000.011000.01000.04000.05000.04000.01000.04000.02000.02000.003000.09000.06000.05000.014000.08000.05000.04000.09000.06000.05000.06000.010000.05000.07000.08000.012000.09000.07000.08000.0
Percentage of InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestIncomeSecuritiesTaxExempt

us-gaap:InterestIncomeSecuritiesTaxExempt


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value118000.0229000.0231000.0238000.0249000.0361000.0382000.0383000.0436000.0510000.0488000.0518000.0579000.0651000.0673000.0717000.0766000.0845000.0871000.0902000.0929000.0973000.01017000.01046000.01097000.01163000.01179000.01199000.01243000.01248000.01276000.01274000.01283000.01312000.01343000.01358000.01356000.01366000.01386000.01401000.01375000.01383000.01410000.01352000.01398000.01417000.0
Percentage of InterestIncomeSecuritiesTaxExempt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestIncomeSecuritiesTaxable

us-gaap:InterestIncomeSecuritiesTaxable


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value8.9918.9389.99812121212131314151616171819191918191920212019192119191919181816151517181718201919181919
Percentage of InterestIncomeSecuritiesTaxable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LaborAndRelatedExpense

us-gaap:LaborAndRelatedExpense


Labor
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value70716967666962626160586059585958595758576757575857575756565656565553494746464544444444444342
Percentage of LaborAndRelatedExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeaseCost

us-gaap:LeaseCost


Lease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2129000.02096000.02105000.02141000.02215000.02211000.02208000.02251000.02398000.02221000.0
Percentage of LeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:MortgageLoansOnRealEstateCostOfMortgagesSold

us-gaap:MortgageLoansOnRealEstateCostOfMortgagesSold


Mortgage
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value629659724705785317478437279208271305278237307315296260368425355235315350346233912828273213184226348392392
Percentage of MortgageLoansOnRealEstateCostOfMortgagesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:MortgageLoansOnRealEstateForeclosures

us-gaap:MortgageLoansOnRealEstateForeclosures


Mortgage
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-30
Value0.1390.090.070.3362.9143.5831.3160.7851.7473.2845.0742.011.7542.9832.2571.7661.993135.063.6086.5866.404127.7535.891111313118.886159.0988.86416131917
Percentage of MortgageLoansOnRealEstateForeclosures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NoninterestExpense

us-gaap:NoninterestExpense


Noninterest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value11811211811311812311010610610610310510310210210312210210097110989810310099104100102101104101107102878387858385818080848476
Percentage of NoninterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NoninterestExpense us-gaap:StatementBusinessSegments

trmk:GeneralBanking


Noninterest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value10294102981031069593909090898988888810887878496858590868588918894907572777572727068697373
Percentage of NoninterestExpense86.184.386.386.387.186.086.787.785.585.586.885.485.886.486.386.288.785.687.386.287.986.887.186.986.686.286.787.787.387.788.486.986.387.687.687.485.386.786.086.587.687.5

trmk:Insurance


Noninterest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value8.7319.398.4618.5088.368.8447.5677.9538.2818.3436.8268.148.2917.5996.957.4817.4577.4996.817.3347.2747.166.787.3227.0156.9296.5975.8986.0326.0486.0095.3095.4745.4185.1515.0635.7465.4815.4115.1645.7485.485
Percentage of NoninterestExpense7.48.47.17.57.07.16.97.47.87.96.67.78.07.46.87.36.17.36.87.56.67.26.97.17.07.06.55.65.95.65.96.16.66.26.06.16.76.76.86.46.86.5

trmk:WealthManagement


Noninterest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value7.7498.1947.7917.0676.9448.5167.0195.1917.1367.0196.867.1946.4836.3197.26.7916.3697.2015.9656.2166.0935.8915.9736.1956.4086.776.9376.986.8777.1175.836.1595.9575.455.4875.3546.8195.345.7875.6694.7525.037
Percentage of NoninterestExpense6.57.36.66.25.96.96.44.96.76.66.66.86.26.27.06.65.27.15.96.35.56.06.16.06.46.86.86.76.86.65.77.17.16.26.46.58.06.67.27.05.66.0

us-gaap:NoninterestIncome

us-gaap:NoninterestIncome


Noninterest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value56606673696547484941434747464344504641444443394545424242444438474344424443433244463638434438
Percentage of NoninterestIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NoninterestIncome us-gaap:AdjustmentsForNewAccountingPronouncements

us-gaap:AccountingStandardsUpdate201409


Noninterest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value3936363533383838383737373735363736
Percentage of NoninterestIncome69.260.854.948.048.659.280.379.978.191.685.980.378.676.683.184.972.8

us-gaap:CalculatedUnderRevenueGuidanceInEffectBeforeTopic606


Noninterest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1723293835269.369.724103.4996.1279.25410107.4136.707
Percentage of NoninterestIncome30.839.245.152.051.440.819.720.121.98.414.119.721.423.416.915.1

us-gaap:NoninterestIncome us-gaap:AdjustmentsForNewAccountingPronouncements, us-gaap:StatementBusinessSegments

us-gaap:AccountingStandardsUpdate201409, trmk:GeneralBanking


Noninterest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1715181614182119191920191918191919
Percentage of NoninterestIncome31.626.327.621.920.728.544.441.140.246.946.941.140.340.245.444.738.3

us-gaap:AccountingStandardsUpdate201409, trmk:Insurance


Noninterest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1212101111119.3861111109.56410109.4198.838109.746
Percentage of NoninterestIncome21.720.615.415.717.117.719.722.922.326.222.022.922.720.120.123.419.4

us-gaap:AccountingStandardsUpdate201409, trmk:WealthManagement


Noninterest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value9.0118.4567.8617.6797.5418.5037.7177.6537.7117.6777.4397.747.4097.5867.7477.497.599
Percentage of NoninterestIncome16.014.011.910.410.813.016.215.815.518.517.116.415.616.217.616.815.1

us-gaap:CalculatedUnderRevenueGuidanceInEffectBeforeTopic606, trmk:GeneralBanking


Noninterest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1723293835269.3449.692103.4736.1069.22510107.3886.685
Percentage of NoninterestIncome30.839.245.152.051.340.719.620.121.98.414.019.621.323.416.815.0

us-gaap:CalculatedUnderRevenueGuidanceInEffectBeforeTopic606, trmk:WealthManagement


Noninterest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.0090.0070.0130.0150.0090.0130.0160.0320.0290.0260.0210.0290.030.0280.0250.022
Percentage of NoninterestIncome0.00.00.00.00.00.00.00.10.10.10.00.10.10.10.10.0

us-gaap:NoninterestIncome us-gaap:StatementBusinessSegments

trmk:GeneralBanking


Noninterest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value353948545045302930222628292927263229252726272328282527233128302930303121303323263032
Percentage of NoninterestIncome62.365.572.773.872.069.264.061.262.155.260.960.661.763.762.259.765.464.061.960.860.263.358.661.662.460.863.260.066.565.668.169.367.870.372.165.369.372.665.568.770.472.0

trmk:Insurance


Noninterest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value1212101111119.3861111109.56410109.4198.838109.7469.2168.459109.6398.5948.5029.9059.4048.6168.0987.3468.2318.0217.2446.8927.5377.1486.6266.0837.5086.8776.4856.2497.7266.889
Percentage of NoninterestIncome21.720.615.415.717.117.719.722.922.326.222.022.922.720.120.123.419.420.020.322.521.819.921.721.520.620.318.419.017.518.316.316.116.816.315.118.617.014.817.816.217.615.3

trmk:WealthManagement


Noninterest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value9.028.4637.8747.6947.558.5167.7337.6857.747.7037.467.7697.4347.5657.7727.5127.6247.3777.4367.4347.9597.2887.7687.7487.7228.0078.1418.1417.5356.9996.9066.2386.8955.8445.5885.36.0785.8516.0715.8395.2895.681
Percentage of NoninterestIncome16.014.011.910.410.913.016.315.915.618.617.116.515.716.217.716.915.216.017.816.618.016.819.816.917.018.918.521.116.016.015.614.615.413.412.816.213.712.616.715.112.012.6

us-gaap:OccupancyNet

us-gaap:OccupancyNet


Occupancy
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value6.5786.7956.6167.06.5876.2866.4616.8316.4036.4546.7416.916.556.5026.6176.7026.216.2386.4266.445.9286.1886.3046.586.2436.1916.6326.8176.4136.6066.6596.6446.7035.9555.0235.3524.9544.9385.0385.0935.055.0734.8964.9614.9175.034
Percentage of OccupancyNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal

us-gaap:OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal


Off
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value4.528-9.367-1.087-3.0046.2426.783
Percentage of OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseCost


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1342000.01305000.01303000.01306000.01289000.01290000.01291000.01303000.01289000.01300000.0
Percentage of OperatingLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasePayments


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1258000.01009000.01249000.01246000.01247000.01246000.01333000.01278000.01235000.01246000.0
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value21000.021000.028000.028000.028000.028000.047000.046000.047000.047000.0
Percentage of OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax

us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value6.612-21.8-4.826-7.7072.648401.0794.154201827-9.66
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value5.511-15.817-6.915-5.1782.56931-2.9033.767151424-6.477-6.128-19.986-12.4080.43.4372.207-28.1-5.9067.34622-16.9412-11.67112-8.118-3.8637.945.4748.561-16.138-41.692.44
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value4.959-16.35-3.62-5.7811.986300.813.116151420-7.246
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax90.0103.452.3111.677.397.9-27.982.794.696.586.1111.9

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value5.511-15.817-3.069-5.1782.569311.3753.753161421-6.516-6.227-20.306-11.8310.3673.5662.172-28.564-6.1637.62323-17.79212-12.93126.086-4.1717.6775.052-9.502-17.461-44.5151.38
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax100.0100.044.4100.0100.0100.0-47.499.6100.5100.388.7100.6101.6101.695.391.8103.898.4101.7104.4103.8103.6105.096.7110.896.5-75.0108.096.792.3-111.0108.2106.856.6

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax

us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1.653-5.45-1.206-1.9260.662100.2691.0385.024.7066.938-2.414
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeTax

us-gaap:OtherComprehensiveIncomeLossBeforeTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value7.819-20.606-8.979-6.5073.82241-3.6565.277211932-8.274-7.806-26.182-19.2711.108234.523-46.514-7.9521538-27.22920-18.69220-13.148-6.166128.47513-26.134-67.6873.747
Percentage of OtherComprehensiveIncomeLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value7.348-21.089-4.092-6.9033.426411.8325.003211928-8.687
Percentage of OtherComprehensiveIncomeLossBeforeTax94.0102.345.6106.189.699.1-50.194.899.499.488.4105.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value5.865-15.455-6.735-4.8812.86731-2.7423.958161424-6.207-5.853-19.637-11.90.684142.793-28.723-4.9119.40923-16.81412-11.54112-8.119-3.8087.945.2348.495-16.138-41.7972.314-3.8533.5942.117-1.584-16.4851515-0.197
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value5.865-15.455-4.8812.867313.9581614-6.207-5.853-19.637
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312014-03-312013-03-31
Value-333000.0-341000.0-123000.0-239000.0-240000.0-244000.0-35000.0-186000.0-186000.0-190000.0-232000.00
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:OtherComprehensiveIncomeLossTax

us-gaap:OtherComprehensiveIncomeLossTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1.9545.151171.626-0.955-10.433-22.31.319-5.366-4.922-8.0882.0671.9536.5457.371-0.424-8.979-1.73173.041-5.827-14.75510-7.8147.151-7.9475.0292.358-4.918-3.241-5.2629.99625-1.433
Percentage of OtherComprehensiveIncomeLossTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1.8375.272171.725-0.857-10.342-23.4111.25-5.334-4.89314-2.171
Percentage of OtherComprehensiveIncomeLossTax94.0102.3103.7106.189.799.1105.094.899.499.4-184.0-105.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value4.959-16.35-3.62-5.7811.986300.813.116151420-7.246-6.955-21.03-12.553-0.3312.8321.411-29.463-7.8165.78721-18.77911-13.951115.119-5.1826.7674.22919-17.461-44.5151.38-1.7742.6181.132-1.916-4.361514-0.946-20.4663.645
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherInterestAndDividendIncome

us-gaap:OtherInterestAndDividendIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value489000.0503000.0249000.0331000.0239000.0740000.0896000.01044000.01820000.01603000.01158000.01050000.01054000.0934000.0473000.0355000.0371000.0267000.0335000.0223000.0200000.0230000.0402000.0392000.0392000.0393000.0384000.0386000.0379000.0375000.0367000.0372000.0372000.0355000.0337000.0339000.0336000.0330000.0327000.0329000.0333000.0332000.0328000.0332000.0366000.0383000.0
Percentage of OtherInterestAndDividendIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNoninterestExpense

us-gaap:OtherNoninterestExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value131415141314121011121211121111121412111112111312121114121313151318181010141311119.8179.532108.5989.1467.707
Percentage of OtherNoninterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherRevenueExpenseFromRealEstateOperations

us-gaap:OtherRevenueExpenseFromRealEstateOperations


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value-1511000.0-324000.0812000.0-1203000.0-271000.0-1294000.0-1491000.0-531000.0-132000.0-1752000.0-61000.0-1168000.093000.0-866000.0-666000.0-864000.0-383000.0-1759000.0-525000.01313000.0-1193000.0-181000.0518000.0-3385000.0
Percentage of OtherRevenueExpenseFromRealEstateOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForFederalHomeLoanBankAdvances

us-gaap:PaymentsForFederalHomeLoanBankAdvances


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value5000.04000.05000.05000.017000.017000.017000.017000.017000.017000.017000.017000.016000.017000.016000.016000.017000.016000.016000.030000.018000.030000.017000.030000.017000.030000.018000.029000.049000.060000.0148000.0154000.0147000.082000.00000-462000.00
Percentage of PaymentsForFederalHomeLoanBankAdvances100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0100.00.0

us-gaap:PaymentsForOriginationOfMortgageLoansHeldForSale

us-gaap:PaymentsForOriginationOfMortgageLoansHeldForSale


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value5766436928087504164024913502352292883112232833073252632954503792672933683412752372612311622492593793824365454853883101089-200.572-195.964-1937.7021261-253.678-197.088
Percentage of PaymentsForOriginationOfMortgageLoansHeldForSale100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromLifeInsurancePolicies

us-gaap:PaymentsForProceedsFromLifeInsurancePolicies


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value0.027-1.818-2.6880.0-0.312-0.280.019-2.146-2.0130.00.019-0.2570.007-3.630.00.0-1.9810.00.0-0.6040.0070.0-0.6550.00.00.0
Percentage of PaymentsForProceedsFromLifeInsurancePolicies100.0100.0100.00.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.00.0100.00.00.0100.0100.00.0100.00.00.00.0

us-gaap:PaymentsForProceedsFromLoansAndLeases

us-gaap:PaymentsForProceedsFromLoansAndLeases


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value11226-356.90919110311621091031181487635129-100.619151822721023337111815328031213-78.479829717878405431-145.51761-115.233-122.368-74.59385-110.1-48.635-68.95284-20.666-84.074-118.184
Percentage of PaymentsForProceedsFromLoansAndLeases100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForSoftware

us-gaap:PaymentsForSoftware


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value1.5180.8182.2022.8711.3741.8053.8712.683.1083.7532.4943.3426.5180.8412.0061.2251.2021.0652.9521.4962.0111.5652.1652.0864.490.00.00.0
Percentage of PaymentsForSoftware100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:PaymentsOfDebtIssuanceCosts us-gaap:LongtermDebtType

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:SubordinatedDebt


Payments
Period End2020-12-31
Value600000.0
Percentage of PaymentsOfDebtIssuanceCosts100.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value11000.01230000.06000.015000.059000.01020000.019000.034000.01000.01604000.0-1000.05000.042000.01380000.065000.020000.096000.01543000.025000.043000.0150000.0799000.0
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4345902932652132781670.4419.3030.09.8619.8812.7691.39
Percentage of PaymentsToAcquireAvailableForSaleSecuritiesDebt100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireOtherInvestments

us-gaap:PaymentsToAcquireOtherInvestments


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value6.2477.1491.3862.8461.4710.1410.00.00.03.4260.0050.00.00.0170.0832.322.8760.0170.070.00.00.0464.2630.1990.0780.0380.3175.1180.00.033
Percentage of PaymentsToAcquireOtherInvestments100.0100.0100.0100.0100.0100.00.00.00.0100.0100.00.00.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2242172142161638611893106106881081141121151201111191421301139913412612691130108858012415921027222523821923426621412014724416115786
Percentage of ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value6144734944344740592534423833463846435679697231333824262722176.1050.3643.3253.583.2942.394.1515.6991316223028242317
Percentage of ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromPaymentsForFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResellNet

us-gaap:ProceedsFromPaymentsForFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResellNet


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.00.050.0-0.052.0-2.00.075-75.4990.830.17-1.00.1120.5032.63.6850.50.00.02.698-3.1980.25-0.250.00.01.8852.1280.987-5.07.2530.6140.002-1.9431.12-1.7511.43-0.4242.957-0.448-3.234-2.8510-5.118-0.9425.886-5.225
Percentage of ProceedsFromPaymentsForFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResellNet0.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromRepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths

us-gaap:ProceedsFromRepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-433000.0-4220000.0-3755000.0210000.04189000.0-127000.0217000.0217000.0217000.0-90000.0-124790000.0
Percentage of ProceedsFromRepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfForeclosedAssets

us-gaap:ProceedsFromSaleOfForeclosedAssets


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.2580.9095.9091.1556.6083.6714.4842.5932.3251.784.0125.8095.3715.316.5484.3539.0926.8565.431206.77310151111101016147.3315138.7638.2978.8077.3698.7771017128.343157.098161211
Percentage of ProceedsFromSaleOfForeclosedAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfMortgageLoansHeldForSale

us-gaap:ProceedsFromSaleOfMortgageLoansHeldForSale


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value649685757735809324487446284212277311283241312320301263374432360238320355352236245276215186227354399402519522429378317223198242372324218250
Percentage of ProceedsFromSaleOfMortgageLoansHeldForSale100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2255000.0545000.03000.00874000.01000.0525000.01848000.0121000.00647000.04000.0585000.096000.02646000.05050000.06364000.0280000.0155000.00165000.01000.01595000.01300000.09000.002381000.02251000.0386000.03772000.010000.007000.0-3000.0001000.0141000.021000.0374000.0161000.019000.02000.01000.0
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment100.0100.0100.00.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForLoanLossesExpensed

us-gaap:ProvisionForLoanLossesExpensed


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value-3.991-10.501-4.4131.7618203.6613.0392.4861.6110.1050.1050.00.150.150.150.150.511
Percentage of ProvisionForLoanLossesExpensed100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForLoanLossesExpensed us-gaap:MortgageLoansOnRealEstateLoanType

trmk:AllowanceForCreditLossesACL


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-3.991-10.501-4.4131.7618203.6613.0392.4861.611
Percentage of ProvisionForLoanLossesExpensed100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForLoanLossesExpensed us-gaap:MortgageLoansOnRealEstateLoanType, us-gaap:ClassOfFinancingReceivableTypeOfBorrower, us-gaap:Collateral, us-gaap:FinancingReceivablePortfolioSegment

trmk:AllowanceForCreditLossesACL, us-gaap:CommercialBorrower, us-gaap:RealEstate, trmk:ConstructionLandDevelopmentAndOtherFinancingReceivable


Provision
Period End2020-12-312020-09-302020-06-302020-03-31
Value-4.133-1.4782.7762.802
Percentage of ProvisionForLoanLossesExpensed93.7-84.015.313.6

us-gaap:ProvisionForLoanLossesExpensed us-gaap:MortgageLoansOnRealEstateLoanType, us-gaap:Collateral, us-gaap:FinancingReceivablePortfolioSegment

trmk:AllowanceForCreditLossesACL, trmk:OtherLoansSecuredByRealEstate, trmk:OtherConstruction


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value1.363-3.035-2.189-0.6243.0712.601
Percentage of ProvisionForLoanLossesExpensed-34.228.949.6-35.516.912.6

trmk:AllowanceForCreditLossesACL, trmk:OtherLoansSecuredByRealEstate, trmk:ResidentialFinancingReceivable


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-0.847-1.49-3.646-2.1832.8442.033
Percentage of ProvisionForLoanLossesExpensed21.214.282.6-124.015.69.9

trmk:AllowanceForCreditLossesACL, us-gaap:RealEstate, trmk:ConstructionLandDevelopmentAndOtherFinancingReceivable


Provision
Period End2021-06-302021-03-312020-06-302020-03-31
Value-0.261-2.5622.7762.802
Percentage of ProvisionForLoanLossesExpensed6.524.415.313.6

trmk:AllowanceForCreditLossesACL, us-gaap:RealEstate, trmk:NonresidentialPropertiesFinancingReceivables


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-2.97-2.1155.9537.4427.84512
Percentage of ProvisionForLoanLossesExpensed74.420.1-134.9422.843.160.9

trmk:AllowanceForCreditLossesACL, us-gaap:RealEstate, trmk:OtherRealEstateSecuredFinancingReceivable


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-0.464-1.6180.202-0.472.3152.016
Percentage of ProvisionForLoanLossesExpensed11.615.4-4.6-26.712.79.8

trmk:AllowanceForCreditLossesACL, us-gaap:RealEstate, trmk:OtherResidentialFinancingReceivable


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value1.609-1.306-1.588-1.4150.9581.636
Percentage of ProvisionForLoanLossesExpensed-40.312.436.0-80.45.37.9

us-gaap:ProvisionForLoanLossesExpensed us-gaap:MortgageLoansOnRealEstateLoanType, us-gaap:FinancingReceivablePortfolioSegment

trmk:AllowanceForCreditLossesACL, trmk:OtherCommercialLoansFinancingReceivable


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.402-1.243-0.1721.060.307-1.15
Percentage of ProvisionForLoanLossesExpensed-10.111.83.960.21.7-5.6

trmk:AllowanceForCreditLossesACL, trmk:OtherConstruction


Provision
Period End2021-06-30
Value1.4
Percentage of ProvisionForLoanLossesExpensed-35.1

trmk:AllowanceForCreditLossesACL, trmk:ResidentialFinancingReceivable


Provision
Period End2021-06-30
Value1.6
Percentage of ProvisionForLoanLossesExpensed-40.1

trmk:AllowanceForCreditLossesACL, trmk:StateAndOtherPoliticalSubdivisionLoansFinancingReceivable


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.218-0.1750.232-0.456-0.027-1.243
Percentage of ProvisionForLoanLossesExpensed-5.51.7-5.3-25.9-0.1-6.0

trmk:AllowanceForCreditLossesACL, us-gaap:CommercialPortfolioSegment


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-3.1714.0511.3440.232-1.908-2.024
Percentage of ProvisionForLoanLossesExpensed79.5-38.6-30.513.2-10.5-9.8

trmk:AllowanceForCreditLossesACL, us-gaap:ConsumerPortfolioSegment


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.13-1.008-0.416-0.3480.0041.375
Percentage of ProvisionForLoanLossesExpensed-3.39.69.4-19.80.06.7

us-gaap:RealEstateOtherAdditions

us-gaap:RealEstateOtherAdditions


Real
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value0.1390.090.070.3362.9143.5831.3160.7851.7473.2845.0742.011.7542.9832.7321.7662.376134.9183.3066.5646.3118.6567.4565.37110136.3661310496.466157.7418.8647.9541613191017
Percentage of RealEstateOtherAdditions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RealEstateOtherDeductions

us-gaap:RealEstateOtherDeductions


Real
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value0.2990.854.6231.2896.7933.7414.92.7152.2011.6584.5385.5844.7844.8966.1794.1538.0456.3854.581175.3717.537121111109.16113137.59415138.4028.1628.9076.3538.1289.76715128.136156.72816
Percentage of RealEstateOtherDeductions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-471000.0-483000.04887000.0-396000.0-396000.0-363000.05422000.0-356000.0-372000.0-349000.0-3977000.0-465000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterest


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-443000.0-455000.0-164000.0-319000.0-318000.0-326000.0-47000.0-247000.0-247000.0-255000.0-133000.0-361000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax94.194.2-3.480.680.389.8-0.969.466.473.13.377.6

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterest


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-28000.0-28000.0-38000.0-37000.0-38000.0-37000.0-63000.0-62000.0-62000.0-63000.0-62000.0-63000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax5.95.8-0.89.39.610.2-1.217.416.718.11.613.5

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetTransitionIncludingPortionAttributableToNoncontrollingInterest


Reclassification
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-39000.0-40000.0-40000.00-171000.0-47000.0-63000.0-31000.0-40000.0-41000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax-0.810.110.1-0.0-3.213.216.98.91.08.8

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-354000.0-362000.0-180000.0-297000.0-298000.0-272000.0-161000.0-191000.0-174000.0-133000.0-92000.0-270000.0-275000.0-349000.0-508000.0-284000.0-11059000.0-586000.0623000.0-995000.0-2063000.0-1134000.0-126000.0-130000.0-130000.0-130000.01000.0-55000.00240000.066000.00107000.0126000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-354000.0-362000.0-180000.0-297000.0-298000.0-272000.0-212000.0-266000.0-280000.0-261000.0-177000.0-349000.0-348000.0-354000.0-477000.0-258000.0-11012000.0-525000.0701000.0-898000.0-1967000.0-844000.000000000000
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax100.0100.0100.0100.0100.0100.0131.7139.3160.9196.2192.4129.3126.5101.493.990.899.689.6112.590.395.374.4-0.0-0.0-0.00.0-0.00.00.00.00.00.00.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-354000.0-362000.03666000.0-297000.0-298000.0-272000.04066000.0-266000.0-280000.0-261000.0-2983000.0-349000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax100.0100.0-2036.7100.0100.0100.0-2525.5139.3160.9196.23242.4129.3

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterest


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-333000.0-341000.0-123000.0-239000.0-240000.0-244000.0-35000.0-186000.0-186000.0-190000.0-100000.0-271000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax94.194.268.380.580.589.721.797.4106.9142.9108.7100.4

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterest


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-21000.0-21000.0-28000.0-28000.0-28000.0-28000.0-47000.0-46000.0-47000.0-47000.0-47000.0-47000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax5.95.815.69.49.410.329.224.127.035.351.117.4

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetTransitionIncludingPortionAttributableToNoncontrollingInterest


Reclassification
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-29000.0-30000.0-30000.00-130000.0-34000.0-47000.0-24000.0-30000.0-31000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax16.110.110.1-0.080.717.827.018.032.611.5

us-gaap:ReclassificationFromAociCurrentPeriodTax us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAociCurrentPeriodTax

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-117000.0-121000.0-643000.0-99000.0-98000.0-91000.01356000.0-90000.0-92000.0-88000.0-994000.0-116000.0
Percentage of ReclassificationFromAociCurrentPeriodTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterest


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-110000.0-114000.0523000.0-80000.0-78000.0-82000.0-12000.0-61000.0-61000.0-65000.0-33000.0-90000.0
Percentage of ReclassificationFromAociCurrentPeriodTax94.094.2-81.380.879.690.1-0.967.866.373.93.377.6

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceIncludingPortionAttributableToNoncontrollingInterest


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-7000.0-7000.066000.0-9000.0-10000.0-9000.0-16000.0-16000.0-15000.0-16000.0-15000.0-16000.0
Percentage of ReclassificationFromAociCurrentPeriodTax6.05.8-10.39.110.29.9-1.217.816.318.21.513.8

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetTransitionIncludingPortionAttributableToNoncontrollingInterest


Reclassification
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value50000.0-10000.0-10000.00-41000.0-13000.0-16000.0-7000.0-10000.0-10000.0
Percentage of ReclassificationFromAociCurrentPeriodTax-7.810.110.2-0.0-3.014.417.48.01.08.6

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability


Right
Period End2021-06-302021-03-312019-12-31
Value092000.0-497000.0
Percentage of RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability0.0100.0100.0

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability


Right
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.4153.8631.4061.6970.00.671-1.9980.418-1.09933
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:ServicingAssetAtFairValueAdditions

us-gaap:ServicingAssetAtFairValueAdditions


Servicing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value7.2237.9789.0778.3328.7473.6495.285.3563.5682.5073.5114.5294.1523.5674.234.1334.0573.444.3535.1814.1393.07230-5.164-5.031-3.126-3.41-3.704-2.864-2.315-2.93-4.89-5.14-5.521-6.179-6.663
Percentage of ServicingAssetAtFairValueAdditions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs

us-gaap:ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs


Servicing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value-5029000.0-5103000.0-5177000.0-4590000.0-4214000.0-2607000.0-2950000.0-3569000.0-2918000.0-2398000.0-2752000.0-3181000.0-3334000.0-2507000.0-2606000.0-2891000.0-2896000.0-2387000.0-2739000.0-2862000.0-2500000.0-2005000.0-16963000.02635000.02588000.02213000.0-15135000.02365000.02391000.01812000.0-17429000.02407000.02756000.02460000.0-2631000.0-2751000.0-2320000.0-2106000.0-2122000.0-2039000.0-1456000.0-1290000.0-2505000.0-2255000.0
Percentage of ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate

us-gaap:ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate


Servicing
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value09.54-0.069.49420.00060.0952-0.0001000.10040-0.002400.102800-0.00040.1032-0.0002
Percentage of ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate0.0100.0100.0100.0100.0100.0100.00.00.0100.00.0100.00.0100.00.00.0100.0100.0100.0

us-gaap:ShortTermLeaseCost

us-gaap:ShortTermLeaseCost


Short
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value110000.0119000.099000.0104000.0111000.0109000.082000.085000.0123000.080000.0
Percentage of ShortTermLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue


Stock
Period End2021-06-302021-03-312020-03-312019-09-302019-06-302019-03-312018-06-302018-03-31
Value204.185274.51513365.3752.502
Percentage of StockRepurchasedAndRetiredDuringPeriodValue100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-03-312019-09-302019-06-302019-03-312018-06-302018-03-31
Value204.155274.48612365.3422.485
Percentage of StockRepurchasedAndRetiredDuringPeriodValue99.499.399.399.499.499.399.499.3

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-312020-03-312019-09-302019-06-302019-03-312018-06-302018-03-31
Value0.1320.030.1840.0290.0830.2430.0330.017
Percentage of StockRepurchasedAndRetiredDuringPeriodValue0.60.70.70.60.60.70.60.7

us-gaap:StockRepurchasedDuringPeriodShares us-gaap:ShareRepurchaseProgram, us-gaap:SubsequentEventType

us-gaap:StockRepurchasedDuringPeriodShares

trmk:StockRepurchaseProgramThree, us-gaap:SubsequentEvent


Stock
Period End2021-01-31
Value16000.0
Percentage of StockRepurchasedDuringPeriodShares100.0

us-gaap:StockRepurchasedDuringPeriodValue us-gaap:ShareRepurchaseProgram, us-gaap:StatementEquityComponents

us-gaap:StockRepurchasedDuringPeriodValue

trmk:StockRepurchaseProgramThree, us-gaap:CommonStock


Stock
Period End2021-06-302021-03-31
Value204.2
Percentage of StockRepurchasedDuringPeriodValue100.0100.0

us-gaap:StockRepurchasedDuringPeriodValue us-gaap:ShareRepurchaseProgram, us-gaap:SubsequentEventType

trmk:StockRepurchaseProgramThree, us-gaap:SubsequentEvent


Stock
Period End2021-01-31
Value0.446
Percentage of StockRepurchasedDuringPeriodValue0.0

us-gaap:SubleaseIncome

us-gaap:SubleaseIncome


Sublease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value77000.076000.089000.084000.063000.099000.081000.081000.082000.087000.0
Percentage of SubleaseIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:VariableLeaseCost

us-gaap:VariableLeaseCost


Variable
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value311000.0307000.0303000.0304000.0332000.0347000.0348000.0349000.0346000.0344000.0
Percentage of VariableLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:VariableLeasePayment

us-gaap:VariableLeasePayment


Variable
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value987000.0967000.0960000.0947000.0979000.0970000.02554000.0975000.0934000.0941000.0
Percentage of VariableLeasePayment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value195000.0167000.0159000.0139000.0157000.0156000.0137000.0140000.0175000.0149000.0152000.0174000.0157000.0159000.0168000.0150000.0137000.0150000.0128000.0113000.0169000.0143000.0140000.0205000.0181000.0167000.0215000.0167000.0180000.0191000.0209000.0232000.0181000.0181000.0
Percentage of WeightedAverageNumberDilutedSharesOutstandingAdjustment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:AccumulatedOtherComprehensiveIncomeLossTransferredSecuritiesAdjustment

trmk:AccumulatedOtherComprehensiveIncomeLossTransferredSecuritiesAdjustment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value-7500000.0-8200000.0-8900000.0-9700000.0-10500000.0-11200000.0-12100000.0-12900000.0-13700000.0-15000000.0-15700000.0-19500000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossTransferredSecuritiesAdjustment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:AmortizedCostHeldToMaturityBeforeMortgageBackedSecurities

trmk:AmortizedCostHeldToMaturityBeforeMortgageBackedSecurities


Amortized
Period End2021-06-302021-03-312020-12-312020-09-30
Value12262631
Percentage of AmortizedCostHeldToMaturityBeforeMortgageBackedSecurities100.0100.0100.0100.0

trmk:AvailableForSaleDebtSecuritiesAmortizedCostBeforeMortgageBackedSecurities

trmk:AvailableForSaleDebtSecuritiesAmortizedCostBeforeMortgageBackedSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-30
Value51222327
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBeforeMortgageBackedSecurities100.0100.0100.0100.0

trmk:CapitalConservationBufferRate

trmk:CapitalConservationBufferRate


Capital
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value2.52.52.52.50.0250.0250.0250.0250.0250.0250.018750.018750.018750.018750.01250.01250.01250.01250.00625
Percentage of CapitalConservationBufferRate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

trmk:ClassifiedAsTroubledDebtRestructuringLHFI

trmk:ClassifiedAsTroubledDebtRestructuringLHFI


Classified
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value25222525<