3.5.0.2 html 431 340 1 false 98 0 false 8 false false R1.htm 101 - Document - Document and Entity Information Sheet http://www.umb.com/taxonomy/role/DocumentandEntityInformation Document and Entity Information Cover 1 false false R2.htm 103 - Statement - Consolidated Balance Sheets Sheet http://www.umb.com/taxonomy/role/StatementOfFinancialPositionUnclassified-DepositBasedOperations Consolidated Balance Sheets Statements 2 false false R3.htm 104 - Statement - Consolidated Balance Sheets (Parenthetical) Sheet http://www.umb.com/taxonomy/role/StatementOfFinancialPositionUnclassified-DepositBasedOperationsParenthetical Consolidated Balance Sheets (Parenthetical) Statements 3 false false R4.htm 105 - Statement - Consolidated Statements of Income Sheet http://www.umb.com/taxonomy/role/StatementOfIncomeInterestBasedRevenue Consolidated Statements of Income Statements 4 false false R5.htm 106 - Statement - Consolidated Statements of Comprehensive Income Sheet http://www.umb.com/taxonomy/role/StatementOfOtherComprehensiveIncome Consolidated Statements of Comprehensive Income Statements 5 false false R6.htm 107 - Statement - Consolidated Statements of Changes in Shareholders' Equity Sheet http://www.umb.com/taxonomy/role/StatementOfShareholdersEquityAndOtherComprehensiveIncome Consolidated Statements of Changes in Shareholders' Equity Statements 6 false false R7.htm 108 - Statement - Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) Sheet http://www.umb.com/taxonomy/role/StatementOfShareholdersEquityAndOtherComprehensiveIncomeParenthetical Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) Statements 7 false false R8.htm 109 - Statement - Consolidated Statements of Cash Flows Sheet http://www.umb.com/taxonomy/role/StatementOfCashFlowsIndirectDepositBasedOperations Consolidated Statements of Cash Flows Statements 8 false false R9.htm 110 - Disclosure - Financial Statement Presentation Sheet http://www.umb.com/taxonomy/role/NotesToFinancialStatementsOrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock Financial Statement Presentation Notes 9 false false R10.htm 111 - Disclosure - Summary of Significant Accounting Policies Sheet http://www.umb.com/taxonomy/role/NotesToFinancialStatementsSignificantAccountingPoliciesTextBlock Summary of Significant Accounting Policies Notes 10 false false R11.htm 112 - Disclosure - New Accounting Pronouncements Sheet http://www.umb.com/taxonomy/role/NotesToFinancialStatementsScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock New Accounting Pronouncements Notes 11 false false R12.htm 113 - Disclosure - Loans and Allowance for Loan Losses Sheet http://www.umb.com/taxonomy/role/NotesToFinancialStatementsLoansNotesTradeAndOtherReceivablesDisclosureTextBlock Loans and Allowance for Loan Losses Notes 12 false false R13.htm 114 - Disclosure - Securities Sheet http://www.umb.com/taxonomy/role/NotesToFinancialStatementsInvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock Securities Notes 13 false false R14.htm 115 - Disclosure - Goodwill and Other Intangibles Sheet http://www.umb.com/taxonomy/role/NotesToFinancialStatementsGoodwillAndIntangibleAssetsDisclosureTextBlock Goodwill and Other Intangibles Notes 14 false false R15.htm 116 - Disclosure - Securities Sold Under Agreements to Repurchase Sheet http://www.umb.com/taxonomy/role/NotesToFinancialStatementsRepurchaseAgreementsResaleAgreementsSecuritiesBorrowedAndSecuritiesLoanedDisclosureTextBlock Securities Sold Under Agreements to Repurchase Notes 15 false false R16.htm 117 - Disclosure - Business Segment Reporting Sheet http://www.umb.com/taxonomy/role/NotesToFinancialStatementsSegmentReportingDisclosureTextBlock Business Segment Reporting Notes 16 false false R17.htm 118 - Disclosure - Acquisition Sheet http://www.umb.com/taxonomy/role/NotesToFinancialStatementsBusinessCombinationDisclosureTextBlock Acquisition Notes 17 false false R18.htm 119 - Disclosure - Commitments, Contingencies and Guarantees Sheet http://www.umb.com/taxonomy/role/NotesToFinancialStatementsCommitmentsAndContingenciesDisclosureTextBlock Commitments, Contingencies and Guarantees Notes 18 false false R19.htm 120 - Disclosure - Derivatives and Hedging Activities Sheet http://www.umb.com/taxonomy/role/NotesToFinancialStatementsDerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock Derivatives and Hedging Activities Notes 19 false false R20.htm 121 - Disclosure - Fair Value Measurements Sheet http://www.umb.com/taxonomy/role/NotesToFinancialStatementsFairValueDisclosuresTextBlock Fair Value Measurements Notes 20 false false R21.htm 122 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://www.umb.com/taxonomy/role/NotesToFinancialStatementsSignificantAccountingPoliciesTextBlockPolicies Summary of Significant Accounting Policies (Policies) Policies http://www.umb.com/taxonomy/role/NotesToFinancialStatementsSignificantAccountingPoliciesTextBlock 21 false false R22.htm 123 - Disclosure - Summary of Significant Accounting Policies (Tables) Sheet http://www.umb.com/taxonomy/role/NotesToFinancialStatementsSignificantAccountingPoliciesTextBlockTables Summary of Significant Accounting Policies (Tables) Tables http://www.umb.com/taxonomy/role/NotesToFinancialStatementsSignificantAccountingPoliciesTextBlock 22 false false R23.htm 124 - Disclosure - Loans and Allowance for Loan Losses (Tables) Sheet http://www.umb.com/taxonomy/role/NotesToFinancialStatementsLoansNotesTradeAndOtherReceivablesDisclosureTextBlockTables Loans and Allowance for Loan Losses (Tables) Tables http://www.umb.com/taxonomy/role/NotesToFinancialStatementsLoansNotesTradeAndOtherReceivablesDisclosureTextBlock 23 false false R24.htm 125 - Disclosure - Securities (Tables) Sheet http://www.umb.com/taxonomy/role/NotesToFinancialStatementsInvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlockTables Securities (Tables) Tables http://www.umb.com/taxonomy/role/NotesToFinancialStatementsInvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock 24 false false R25.htm 126 - Disclosure - Goodwill and Other Intangibles (Tables) Sheet http://www.umb.com/taxonomy/role/NotesToFinancialStatementsGoodwillAndIntangibleAssetsDisclosureTextBlockTables Goodwill and Other Intangibles (Tables) Tables http://www.umb.com/taxonomy/role/NotesToFinancialStatementsGoodwillAndIntangibleAssetsDisclosureTextBlock 25 false false R26.htm 127 - Disclosure - Securities Sold Under Agreements to Repurchase (Tables) Sheet http://www.umb.com/taxonomy/role/NotesToFinancialStatementsRepurchaseAgreementsResaleAgreementsSecuritiesBorrowedAndSecuritiesLoanedDisclosureTextBlockTables Securities Sold Under Agreements to Repurchase (Tables) Tables http://www.umb.com/taxonomy/role/NotesToFinancialStatementsRepurchaseAgreementsResaleAgreementsSecuritiesBorrowedAndSecuritiesLoanedDisclosureTextBlock 26 false false R27.htm 128 - Disclosure - Business Segment Reporting (Tables) Sheet http://www.umb.com/taxonomy/role/NotesToFinancialStatementsSegmentReportingDisclosureTextBlockTables Business Segment Reporting (Tables) Tables http://www.umb.com/taxonomy/role/NotesToFinancialStatementsSegmentReportingDisclosureTextBlock 27 false false R28.htm 129 - Disclosure - Acquisition (Tables) Sheet http://www.umb.com/taxonomy/role/NotesToFinancialStatementsBusinessCombinationDisclosureTextBlockTables Acquisition (Tables) Tables http://www.umb.com/taxonomy/role/NotesToFinancialStatementsBusinessCombinationDisclosureTextBlock 28 false false R29.htm 130 - Disclosure - Commitments, Contingencies and Guarantees (Tables) Sheet http://www.umb.com/taxonomy/role/NotesToFinancialStatementsCommitmentsAndContingenciesDisclosureTextBlockTables Commitments, Contingencies and Guarantees (Tables) Tables http://www.umb.com/taxonomy/role/NotesToFinancialStatementsCommitmentsAndContingenciesDisclosureTextBlock 29 false false R30.htm 131 - Disclosure - Derivatives and Hedging Activities (Tables) Sheet http://www.umb.com/taxonomy/role/NotesToFinancialStatementsDerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlockTables Derivatives and Hedging Activities (Tables) Tables http://www.umb.com/taxonomy/role/NotesToFinancialStatementsDerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock 30 false false R31.htm 132 - Disclosure - Fair Value Measurements (Tables) Sheet http://www.umb.com/taxonomy/role/NotesToFinancialStatementsFairValueDisclosuresTextBlockTables Fair Value Measurements (Tables) Tables http://www.umb.com/taxonomy/role/NotesToFinancialStatementsFairValueDisclosuresTextBlock 31 false false R32.htm 133 - Disclosure - Summary of Cash and Cash Equivalents (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureSummaryOfCashAndCashEquivalents Summary of Cash and Cash Equivalents (Detail) Details 32 false false R33.htm 134 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformation Summary of Significant Accounting Policies - Additional Information (Detail) Details 33 false false R34.htm 135 - Disclosure - Loans and Allowance for Loan Losses - Additional Information (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureLoansAndAllowanceForLoanLossesAdditionalInformation Loans and Allowance for Loan Losses - Additional Information (Detail) Details 34 false false R35.htm 136 - Disclosure - Schedule of Net Book Value for PCI Loans Accounted Under ASC 310-30 (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureScheduleOfNetBookValueForPCILoansAccountedUnderASC31030 Schedule of Net Book Value for PCI Loans Accounted Under ASC 310-30 (Detail) Details 35 false false R36.htm 137 - Disclosure - Summary of Loan Classes and Aging of Past Due Loans (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureSummaryOfLoanClassesAndAgingOfPastDueLoans Summary of Loan Classes and Aging of Past Due Loans (Detail) Details 36 false false R37.htm 138 - Disclosure - Credit Risk Profile by Risk Rating - Originated and Non-PCI Loans (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureCreditRiskProfileByRiskRatingOriginatedAndNonPCILoans Credit Risk Profile by Risk Rating - Originated and Non-PCI Loans (Detail) Details 37 false false R38.htm 139 - Disclosure - Credit Risk Profile Based on Payment Activity - Originated and Non-PCI Loans (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureCreditRiskProfileBasedOnPaymentActivityOriginatedAndNonPCILoans Credit Risk Profile Based on Payment Activity - Originated and Non-PCI Loans (Detail) Details 38 false false R39.htm 140 - Disclosure - Credit Risk Profile by Risk Rating - Loans Accounted for under ASC 310-30 (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureCreditRiskProfileByRiskRatingLoansAccountedForUnderASC31030 Credit Risk Profile by Risk Rating - Loans Accounted for under ASC 310-30 (Detail) Details 39 false false R40.htm 141 - Disclosure - Credit Risk Profile Based on Payment Activity - Loans Accounted for under ASC 310-30 (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureCreditRiskProfileBasedOnPaymentActivityLoansAccountedForUnderASC31030 Credit Risk Profile Based on Payment Activity - Loans Accounted for under ASC 310-30 (Detail) Details 40 false false R41.htm 142 - Disclosure - Rollforward of Allowance for Loan Losses by Portfolio Segment (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureRollforwardOfAllowanceForLoanLossesByPortfolioSegment Rollforward of Allowance for Loan Losses by Portfolio Segment (Detail) Details 41 false false R42.htm 143 - Disclosure - Analysis of Impaired Loans by Class (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureAnalysisOfImpairedLoansByClass Analysis of Impaired Loans by Class (Detail) Details 42 false false R43.htm 144 - Disclosure - Summary of Loans Restructured by Class (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureSummaryOfLoansRestructuredByClass Summary of Loans Restructured by Class (Detail) Details 43 false false R44.htm 145 - Disclosure - Securities Available for Sale (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureSecuritiesAvailableForSale Securities Available for Sale (Detail) Details 44 false false R45.htm 146 - Disclosure - Summary of Contractual Maturity Information for Securities Available for Sale (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureSummaryOfContractualMaturityInformationForSecuritiesAvailableForSale Summary of Contractual Maturity Information for Securities Available for Sale (Detail) Details 45 false false R46.htm 147 - Disclosure - Securities - Additional Information (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureSecuritiesAdditionalInformation Securities - Additional Information (Detail) Details 46 false false R47.htm 148 - Disclosure - Gross Unrealized Losses and Fair Value of Investment Securities Available for Sale (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureGrossUnrealizedLossesAndFairValueOfInvestmentSecuritiesAvailableForSale Gross Unrealized Losses and Fair Value of Investment Securities Available for Sale (Detail) Details 47 false false R48.htm 149 - Disclosure - Securities Held to Maturity (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureSecuritiesHeldToMaturity Securities Held to Maturity (Detail) Details 48 false false R49.htm 150 - Disclosure - Contractual Maturity Information for Securities Held to Maturity (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureContractualMaturityInformationForSecuritiesHeldToMaturity Contractual Maturity Information for Securities Held to Maturity (Detail) Details 49 false false R50.htm 151 - Disclosure - Schedule of Federal Reserve Bank Stock and Federal Home Loan Bank Stock and Other Securities (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureScheduleOfFederalReserveBankStockAndFederalHomeLoanBankStockAndOtherSecurities Schedule of Federal Reserve Bank Stock and Federal Home Loan Bank Stock and Other Securities (Detail) Details 50 false false R51.htm 152 - Disclosure - Changes in Carrying Amount of Goodwill (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureChangesInCarryingAmountOfGoodwill Changes in Carrying Amount of Goodwill (Detail) Details 51 false false R52.htm 153 - Disclosure - Changes In Intangible Assets (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureChangesInIntangibleAssets Changes In Intangible Assets (Detail) Details 52 false false R53.htm 154 - Disclosure - Aggregate Amortization Expense Recognized (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureAggregateAmortizationExpenseRecognized Aggregate Amortization Expense Recognized (Detail) Details 53 false false R54.htm 155 - Disclosure - Estimated Amortization Expense of Intangible Assets (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureEstimatedAmortizationExpenseOfIntangibleAssets Estimated Amortization Expense of Intangible Assets (Detail) Details 54 false false R55.htm 156 - Disclosure - Remaining Contractual Maturities Of Repurchase Agreements (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureRemainingContractualMaturitiesOfRepurchaseAgreements Remaining Contractual Maturities Of Repurchase Agreements (Detail) Details 55 false false R56.htm 157 - Disclosure - Business Segment Reporting - Additional Information (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureBusinessSegmentReportingAdditionalInformation Business Segment Reporting - Additional Information (Detail) Details 56 false false R57.htm 158 - Disclosure - Schedule of Segment Financial Results (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureScheduleOfSegmentFinancialResults Schedule of Segment Financial Results (Detail) Details 57 false false R58.htm 159 - Disclosure - Acquisitions - Additional Information (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureAcquisitionsAdditionalInformation Acquisitions - Additional Information (Detail) Details 58 false false R59.htm 160 - Disclosure - Summary of Net Assets Acquired (at Fair Value) and Consideration Transferred (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureSummaryOfNetAssetsAcquiredatFairValueAndConsiderationTransferred Summary of Net Assets Acquired (at Fair Value) and Consideration Transferred (Detail) Details 59 false false R60.htm 161 - Disclosure - Notional Amount of Off-Balance Sheet Financial Instruments (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureNotionalAmountOfOffBalanceSheetFinancialInstruments Notional Amount of Off-Balance Sheet Financial Instruments (Detail) Details 60 false false R61.htm 162 - Disclosure - Summary of Fair Value of Derivative Assets and Liabilities (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureSummaryOfFairValueOfDerivativeAssetsAndLiabilities Summary of Fair Value of Derivative Assets and Liabilities (Detail) Details 61 false false R62.htm 163 - Disclosure - Derivatives and Hedging Activities - Additional Information (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureDerivativesAndHedgingActivitiesAdditionalInformation Derivatives and Hedging Activities - Additional Information (Detail) Details 62 false false R63.htm 164 - Disclosure - Summary of Amount of Gain or Loss Recognized in Other Non-Interest Expense in Consolidated Statements of Income Related to Derivative Assets and Liabilities (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureSummaryOfAmountOfGainOrLossRecognizedInOtherNonInterestExpenseInConsolidatedStatementsOfIncomeRelatedToDerivativeAssetsAndLiabilities Summary of Amount of Gain or Loss Recognized in Other Non-Interest Expense in Consolidated Statements of Income Related to Derivative Assets and Liabilities (Detail) Details 63 false false R64.htm 165 - Disclosure - Summary of Amount of Gain or Loss Recognized in AOCI in Consolidated Statements of Comprehensive Income Related to Company's Derivative Assets and Liabilities (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureSummaryOfAmountOfGainOrLossRecognizedInAOCIInConsolidatedStatementsOfComprehensiveIncomeRelatedToCompanysDerivativeAssetsAndLiabilities Summary of Amount of Gain or Loss Recognized in AOCI in Consolidated Statements of Comprehensive Income Related to Company's Derivative Assets and Liabilities (Detail) Details 64 false false R65.htm 166 - Disclosure - Assets Measured at Fair Value on Recurring Basis (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureAssetsMeasuredAtFairValueOnRecurringBasis Assets Measured at Fair Value on Recurring Basis (Detail) Details 65 false false R66.htm 167 - Disclosure - Reconciliation of Beginning and Ending Balances of Contingent Consideration Liability (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureReconciliationOfBeginningAndEndingBalancesOfContingentConsiderationLiability Reconciliation of Beginning and Ending Balances of Contingent Consideration Liability (Detail) Details 66 false false R67.htm 168 - Disclosure - Assets Measured at Fair Value on Non-Recurring Basis (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureAssetsMeasuredAtFairValueOnNonRecurringBasis Assets Measured at Fair Value on Non-Recurring Basis (Detail) Details 67 false false R68.htm 169 - Disclosure - Estimated Fair Value of Financial Instruments (Detail) Sheet http://www.umb.com/taxonomy/role/DisclosureEstimatedFairValueOfFinancialInstruments Estimated Fair Value of Financial Instruments (Detail) Details 68 false false All Reports Book All Reports umbf-20160630.xml umbf-20160630.xsd umbf-20160630_cal.xml umbf-20160630_def.xml umbf-20160630_lab.xml umbf-20160630_pre.xml true true