Commitments and Contingencies Disclosure [Abstract] Schedule of Outstanding Financial Instruments, Contractual Amounts of Off-Balance Sheet Credit Risk Credit Commitments off Balance Sheet Credit Risk [Table Text Block] Tabular disclosure of specific components relating to commitments to extend credit, standby letters of credit and commercial letters of credit. Such commitments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the consolidated balance sheets. Banking and Thrift [Abstract] Schedule of Composition of Deposits Schedule of Deposits [Table Text Block] Tabular disclosure of the composition of deposits including the carrying amount and the percentage of noninterest and interest-bearing domestic deposit liabilities to deposit liabilities. Fair Value Disclosures [Abstract] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Valuation Approach and Technique [Axis] Valuation Approach and Technique [Axis] Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] Discounted cash flows Valuation Technique, Discounted Cash Flow [Member] Sales cash flows Valuation Technique, Sales Cash Flows [Member] Valuation Technique, Sales Cash Flows [Member] Measurement Input Type [Axis] Measurement Input Type [Axis] Measurement Input Type [Domain] Measurement Input Type [Domain] Credit assumption Measurement Input, Credit Assumption [Member] Measurement Input, Credit Assumption [Member] Constant pre-payment rates (CPR) Measurement Input, Constant Prepayment Rate [Member] Discount rate Measurement Input, Discount Rate [Member] Maturity (months) Measurement Input, Maturity [Member] Delinquency rate Measurement Input, Default Rate [Member] Costs to service Measurement Input, Cost To Service [Member] Measurement Input, Cost To Service [Member] Additive delinquent costs to service Measurement Input, Additive Delinquent Cost To Service [Member] Measurement Input, Additive Delinquent Cost To Service [Member] Expected closing ratio Measurement Input, Expected Closing Ratio [Member] Measurement Input, Expected Closing Ratio [Member] Expected delivery price Measurement Input, Quoted Price [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Significant Unobservable Inputs (Level 3) Fair Value, Inputs, Level 3 [Member] Fair Value by Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Recurring basis Fair Value, Measurements, Recurring [Member] Financial Instrument [Axis] Financial Instrument [Axis] Financial Instruments [Domain] Financial Instruments [Domain] States and political subdivisions US States and Political Subdivisions Debt Securities [Member] Residential mortgage-backed securities Residential Mortgage Backed Securities [Member] Mortgage servicing rights Mortgage Servicing Rights [Member] Mortgage Servicing Rights [Member] Derivative financial instruments Mortgage Derivative Instruments [Member] Mortgage Derivative Instruments [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Financial assets and financial liabilities measured at fair value on a recurring basis Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value Debt Securities, Available-for-sale Investment securities available for sale Available-for-sale Securities Mortgage servicing rights Servicing Asset at Fair Value, Amount Derivative financial instruments Derivative Asset, Fair Value, Gross Asset Debt securities, available for sale, measurement input Debt Securities, Available-for-sale, Measurement Input Servicing asset, measurement input Servicing Asset, Measurement Input Servicing asset, term Servicing Asset, Measurement Input, Term Servicing Asset, Measurement Input, Term Servicing asset, measurement inputs, value Servicing Asset, Measurement Inputs, Value Servicing Asset, Measurement Inputs, Value Derivative instrument, measurement input Derivative Instrument, Measurement Input Derivative Instrument, Measurement Input Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Total compensation expense for share-based payment plans during the period Allocated Share-based Compensation Expense Amount of related income tax benefit recognized in income Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Schedule of Share-Based Payment Plans Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block] Summary of Changes in Stock Options Share-based Compensation, Stock Options, Activity [Table Text Block] Assumptions Used for Options Granted Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Summary of Changes in Restricted Shares and Units Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] Document and Entity Information -- None. No documentation exists for this element. -- Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Document Type Document Type Document Period End Date Document Period End Date Amendment Flag Amendment Flag Current Fiscal Year End Date Current Fiscal Year End Date Entity Current Reporting Status Entity Current Reporting Status Entity Filer Category Entity Filer Category Entity Common Stock shares outstanding (in shares) Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Emerging Growth Company Entity Emerging Growth Company Entity Small Business Entity Small Business Statement of Financial Position [Abstract] ASSETS Assets [Abstract] Cash and due from banks Cash and Due from Banks Interest earning deposits with banks Interest-bearing Deposits in Banks and Other Financial Institutions Total cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Investment securities: Investment Securities [Abstract] -- None. No documentation exists for this element. -- Securities available for sale, at fair value Securities available for sale, at fair value Securities held to maturity, at amortized cost ($932,756 fair value at September 30, 2018 and $992,455 at December 31, 2017) Debt Securities, Held-to-maturity Marketable equity securities Equity Securities, FV-NI Non-marketable securities - FHLB and FRB stock Federal Home Loan Bank Stock and Federal Reserve Bank Stock Total investment securities Investment Securities Total investment securities includes marketable and non-marketable securities. Loans held for sale Loans Receivable Held-for-sale, Net, Not Part of Disposal Group Loans: Loans and Leases Receivable, Net Amount [Abstract] Total loans, excluding purchased credit-impaired loans Loans and Leases Receivable Net of Deferred Income Excluding Purchased Credit Impaired Loans And Covered Loans Reflects the aggregate gross carrying amount of all categories of loans and leases held in portfolio (excluding purchased credit impaired loans and covered loans), after deducting deferred income, but before deducting the allowance for losses on loans and leases. Purchased credit-impaired loans Loans and Leases Receivable, Net of Deferred Income, Purchased Credit Impaired Loans And Covered Loans Reflects the aggregate gross carrying amount of all categories of loans and leases held in portfolio which are purchased credit impaired and those whose losses will be shared with the Federal Deposit Insurance Corporation under loss sharing agreements before deducting the allowance for losses on loans and leases. Total loans Loans and Leases Receivable, Net of Deferred Income Including Covered Loans Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes loans and leases covered under loss sharing agreements. Less: Allowance for loan and lease losses Loans and Leases Receivable, Allowance Including Covered Loans Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Includes allowance for loans and leases covered under loss sharing agreements. Net loans Loans and Leases Receivable, Net Reported Amount Including Covered Loans Amount after allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes loans and leases covered under loss sharing agreements. Lease investments, net Lease Investment, Net The investments in equipment leased to other companies, net of accumulated depreciation. Premises and equipment, net Property, Plant and Equipment, Net Cash surrender value of life insurance Bank Owned Life Insurance Goodwill Goodwill Net book value Intangible Assets, Net (Excluding Goodwill) Mortgage servicing rights, at fair value Other real estate owned, net Real Estate Acquired Through Foreclosure Other real estate owned related to FDIC-assisted transactions Real Estate Acquired Through Foreclosure Related to F D I C Transactions Carrying amount as of the balance sheet date of land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement related to transactions with the Federal Deposit Insurance Corporation. Other assets Other Assets Total assets Assets LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity [Abstract] LIABILITIES Liabilities [Abstract] Deposits: Deposits [Abstract] Non-interest bearing Noninterest-bearing Deposit Liabilities, Domestic Interest bearing Interest-bearing Deposit Liabilities, Domestic Total deposits Deposits, Domestic Short-term borrowings Short-term Debt Long-term borrowings Long-term Debt Junior subordinated notes issued to capital trusts Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust Accrued expenses and other liabilities Other Liabilities Total liabilities Liabilities STOCKHOLDERS’ EQUITY Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Preferred stock, ($0.01 par value, authorized 10,000,000 shares at September 30, 2018 and December 31, 2017; Series A, 8% perpetual non-cumulative, none issued and outstanding at September 30, 2018 and 4,000,000 shares issued and outstanding at December 31, 2017, $25 liquidation value; Series C, 6% perpetual non-cumulative, 200,000 shares issued and outstanding at September 30, 2018 and December 31, 2017, $1,000 liquidation value) Preferred Stock, Value, Issued Common stock, ($0.01 par value; authorized 120,000,000 shares at September 30, 2018 and December 31, 2017; issued 86,160,783 shares at September 30, 2018 and 85,801,702 shares at December 31, 2017) Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital Retained earnings Retained Earnings (Accumulated Deficit) Accumulated other comprehensive (loss) income Accumulated Other Comprehensive Income (Loss), Net of Tax Less: 1,940,112 and 1,883,810 shares of treasury common stock, at cost, at September 30, 2018 and December 31, 2017, respectively Treasury Stock, Value Total stockholders’ equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Total liabilities and stockholders’ equity Liabilities and Equity Investments, Debt and Equity Securities [Abstract] Realized gains Available-for-sale Securities, Gross Realized Gains Realized losses Available-for-sale Securities, Gross Realized Losses Net (losses) gains Available-for-sale Securities, Gross Realized Gain (Loss) Investment [Table] Investment [Table] Investment [Axis] Investment [Axis] Investment [Domain] Investment [Domain] Residential and commercial mortgage-backed securities Collateralized Mortgage Backed Securities [Member] Amortized cost and fair value of investment securities by contractual maturity Investment [Line Items] Amortized Cost, Available for sale Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract] Due in one year or less Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost Due after one year through five years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost Due after five years through ten years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost Due after ten years Debt Securities, Available-for-sale, Allocated and Single Maturity Date, Maturity, after 10 Years, Amortized Cost Amortized Cost Debt Securities, Available-for-sale, Amortized Cost Fair Value, Available for sale Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract] Due in one year or less Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value Due after one year through five years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value Due after five years through ten years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value Due after ten years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value Amortized Cost, Held to maturity Debt Securities, Held-to-maturity, Maturity [Abstract] Due in one year or less Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost Due after one year through five years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost Due after five years through ten years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost Due after ten years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after 10 Years, Amortized Cost Investment securities held to maturity Fair value, Held to maturity Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract] Due in one year or less Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value Due after one year through five years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value Due after five years through ten years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value Due after ten years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value Fair Value Debt Securities, Held-to-maturity, Fair Value Total Available for Sale and Held to Maturity Investment Securities Marketable Securities [Abstract] Amortized Cost Marketable Securities Amortized Cost The cost of debt and equity securities, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. Fair Value Marketable Securities Pledged financial instruments, not separately reported, securities Pledged Financial Instruments, Not Separately Reported, Securities Pledged financial instruments, not separately reported, securities required to be pledged Pledged Financial Instruments, Not Separately Reported, Securities Required to be Pledged Pledged Financial Instruments, Not Separately Reported, Securities Required to be Pledged Transfer of investment securities from held-to-maturity to available-for-sale Transfer of Investments From Held-To-Maturity Securities To Available-For-Sale Securities Transfer of Investments From Held-To-Maturity Securities To Available-For-Sale Securities Goodwill and Intangible Assets Disclosure [Abstract] Schedule of Carrying Amount of Goodwill Schedule of Goodwill [Table Text Block] Changes in the Carrying Amount of Core Deposit and Client Relationship Intangibles Schedule of Finite-Lived Intangible Assets [Table Text Block] Estimated Future Amortization Expense of Other Intangible Assets Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Equity [Abstract] Preferred Stock Preferred Stock [Text Block] Debt Disclosure [Abstract] Outstanding Junior Subordinated Notes and the Related Trust Preferred Securities Issued by Each Trust Schedule of Junior Subordinated Notes and Related Trust Preferred Securities [Table Text Block] Tabular disclosure of junior subordinated notes issued to capital trusts and related trust preferred securities issued by each trust. Fair Value Measurements Fair Value Disclosures [Text Block] Schedule of Short-term Debt [Table] Schedule of Short-term Debt [Table] Short-term Debt, Type [Axis] Short-term Debt, Type [Axis] Short-term Debt, Type [Domain] Short-term Debt, Type [Domain] Customer repurchase agreements Securities Sold under Agreements to Repurchase [Member] Federal Home Loan Bank advances Federal Home Loan Bank Advances [Member] Federal funds purchased Federal Funds Purchased [Member] Line of credit Line of Credit [Member] Short-term borrowings Short-term Debt [Line Items] Weighted Average Interest Rate Short-term Debt, Weighted Average Interest Rate, at Point in Time Amount Quoted Prices in Active Markets for Identical Assets (Level 1) Fair Value, Inputs, Level 1 [Member] Significant Other Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] U.S. Government sponsored agencies and enterprises US Government-sponsored Enterprises Debt Securities [Member] Commercial mortgage-backed securities Commercial Mortgage Backed Securities [Member] Corporate bonds Corporate Bond Securities [Member] Equity securities Equity Securities [Member] Loans Mortgage servicing rights Assets held in trust for deferred compensation Deferred Compensation Plan Assets Derivative financial instruments Other liabilities Other Liabilities, Fair Value Disclosure Derivative financial instruments Derivative Liability, Fair Value, Gross Liability Accounting Changes and Error Corrections [Abstract] Schedule of Error Corrections and Prior Period Adjustment Restatement [Table] Schedule of Error Corrections and Prior Period Adjustment Restatement [Table] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Accounting Standards Update 2014-09 Accounting Standards Update 2014-09 [Member] Accounting Standards Update, 2016-01 Accounting Standards Update 2016-01 [Member] Initial Application Period Cumulative Effect Transition [Axis] Initial Application Period Cumulative Effect Transition [Axis] Initial Application Period Cumulative Effect Transition [Domain] Initial Application Period Cumulative Effect Transition [Domain] Difference Between Revenue Guidance In Effect Before And After Topic 606 Difference between Revenue Guidance in Effect before and after Topic 606 [Member] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Retained Earnings And Accumulated Other Comprehensive Income Retained Earnings And Accumulated Other Comprehensive Income [Member] Retained Earnings And Accumulated Other Comprehensive Income [Member] Accumulated Other Comprehensive Income (Loss), Net of Tax AOCI Attributable to Parent [Member] Retained Earnings Retained Earnings [Member] Accounting Changes and Prior Period Adjustments Restatement [Line Items] Error Corrections and Prior Period Adjustments Restatement [Line Items] Cumulative effect of accounting changes Cumulative Effect of New Accounting Principle in Period of Adoption Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Schedule of Trust Preferred Securities by Type of Securities [Axis] Schedule of Trust Preferred Securities by Type of Securities [Axis] Information about trust preferred securities issued by each trust by type of securities. Trust Preferred Securities by Type of Securities [Domain] Trust Preferred Securities by Type of Securities [Domain] Type of trust preferred securities issued by each trust. MB Financial Capital Trust II M B Financial Capital Trust I I [Member] Represents MB Financial Capital Trust II, a trust formed by the entity for the sole purpose of issuing trust preferred securities. MB Financial Capital Trust III M B Financial Capital Trust I I I [Member] Represents MB Financial Capital Trust III, a trust formed by the entity for the sole purpose of issuing trust preferred securities. MB Financial Capital Trust IV M B Financial Capital Trust I V [Member] Represents MB Financial Capital Trust IV, a trust formed by the entity for the sole purpose of issuing trust preferred securities. MB Financial Capital Trust V M B Financial Capital Trust V [Member] Represents MB Financial Capital Trust V, a trust formed by the entity for the sole purpose of issuing trust preferred securities. MB Financial Capital Trust VI M B Financial Capital Trust V I [Member] Represents MB Financial Capital Trust VI, a trust formed by the entity for the sole purpose of issuing trust preferred securities. FOBB Statutory Trust III F O B B Statutory Trust I I I [Member] Represents FOBB Capital Trust III, a trust formed by the entity for the sole purpose of issuing trust preferred securities. American Chartered Statutory Trust II American Chartered Statutory Trust I I [Member] American Chartered Statutory Trust I I [Member] American Chartered Statutory Trust I American Chartered Statutory Trust I [Member] American Chartered Statutory Trust I [Member] Coal City Capital Trust I Coal City Capital Trust I [Member] Represents Coal City Capital Trust I, a trust formed by the entity for the sole purpose of issuing trust preferred securities. TAYC Capital Trust II TAYC Capital Trust II [Member] TAYC Capital Trust II [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] London Interbank Offered Rate (LIBOR) London Interbank Offered Rate (LIBOR) [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Junior Subordinated Notes Junior Subordinated Debt [Member] Schedule of Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Axis] Schedule of Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Axis] Financial Instruments Subject to Mandatory Redemption, Financial Instrument [Domain] Financial Instruments Subject to Mandatory Redemption, Financial Instrument [Domain] Trust Preferred Securities Trust Preferred Securities Subject to Mandatory Redemption [Member] Outstanding junior subordinated notes Debt Instrument [Line Items] Junior Subordinated Notes Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust [Abstract] Principal balance Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Face Value Investment Owned, Balance, Principal Amount Investment Owned, Balance [Abstract] Investment Owned, Balance [Abstract] Purchase accounting adjustments discount Debt Instrument, Purchase Accounting Adjustments Discount Debt Instrument, Purchase Accounting Adjustments Discount Period for deferment of payment of interest on notes (in years) Period for Deferment of Payment of Interest on Notes Period for deferment of payment of interest on the notes and, therefore, also of distributions on the trust preferred securities, but not beyond the stated maturity date. Loss on extinguishment of debt Gain (Loss) on Extinguishment of Debt Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Short-Term Borrowings Short-term Debt [Text Block] Fixed interest rate Federal Home Loan Bank advances Federal Home Loan Bank, Advances, Maturities Summary, Fixed Rate, under One Year Effective interest rate of amounts due within one year Federal Home Loan Bank, Advances, Maturities Summary, Effective Interest Rate of Amounts Due within One Year of Balance Sheet Date The effective interest rate applicable to the Federal Home Loan Bank advances, which are due within one year of the balance sheet date. Line of credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Receivables [Abstract] Schedule of Composition of Loans Schedule of Accounts Notes Financing Receivable [Table Text Block] Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Contractual Aging of the Recorded Investment in Past Due Loans by Class of Loans Current and Past Due Financing Receivables [Table Text Block] Tabular disclosure of financing receivables that are current and past due but not impaired, financing receivables that are 90 days past due and still accruing, and financing receivables on nonaccrual status. Recorded Investment in Non-accrual Loans and Loans Past Due Ninety Days or More and Still Accruing by Class of Loans Schedule of Financing Receivables, Non Accrual Status [Table Text Block] Risk Category of Loans by Class of Loans Financing Receivable Credit Quality Indicators [Table Text Block] Recorded Investment in Loan Classes Based on Payment Activity Schedule of Financing Receivable by Payment Activity [Table Text Block] Tabular disclosure of financing receivables in various loan classes based on the payment activity, that is whether they are performing or non-performing loans. Loans Individually Evaluated for Impairment by Class of Loans Impaired Financing Receivables [Table Text Block] Schedule of Loans That Have Been Restructured Troubled Debt Restructurings on Financing Receivables [Table Text Block] Troubled Debt Restructuring Activity Rollforward Troubled Debt Restructuring Activity Rollforward [Table Text Block] Troubled Debt Restructuring Activity Rollforward [Table Text Block] Type of Financing Receivable Modifications and Restructuring Type of Financing Receivable Modifications And Restructuring [Table Text Block] Type of Financing Receivable Modifications And Restructuring [Table Text Block] Allowance Activity for Credit Losses, Balance in Allowance for Credit Losses and Recorded Investment in Loans by Portfolio Segment Allowance for Credit Losses on Financing Receivables [Table Text Block] Changes in the Accretable Yield for Purchased Credit-Impaired Loans Schedule of Changes in Accretable Yield for Purchased Credit Impaired Loans [Table Text Block] Tabular disclosure of changes in the accretable yield for purchased credit-impaired loans, which is the difference between cash flows expected to be collected at acquisition and contractually required payments at acquisition. Carrying Amount of Loans Acquired Through a Business Combination by Loan Pool Type Purchased Loans [Table Text Block] Tabular disclosure of the carrying amount of covered loans and other purchased non-covered loans which consist of purchased credit-impaired loans and non-credit-impaired loans by loan classes. Derivative Instruments and Hedging Activities Disclosure [Abstract] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract Derivative Contract [Domain] Commercial loan interest rate swaps Commercial Loan Interest Rate Swaps [Member] Represents information pertaining to interest rate swap entered into to hedge the interest rate exposure. Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Net amount payable under interest rate swap Derivative Interest Rate, Net Amount Payable Represents the net amount payable to counterparties to meet contractual terms of derivative instruments. Interest rate swap credit risk exposure Credit Risk Exposure of Interest Rate Derivative Reflects the amount of credit exposure which is limited to the entity's net favorable value and interest payments of all swaps to each counterparty and which is secured by the underlying collateral on customer loans. Derivative liability, notional amount Derivative Liability, Notional Amount Segment Reporting [Abstract] Summary Financial Information for the Reportable Segments Schedule of Segment Reporting Information, by Segment [Table Text Block] Summary of Derivative Financial Instruments Schedule of Interest Rate Derivatives [Table Text Block] Schedule of the Amounts Included in Consolidated Statements of Operations Related to Derivative Financial Instruments Schedule of Derivative Instruments Designated and Not Designated as Hedging Instruments Gain Loss in Statement of Financial Performance and Financial Position Location [Table Text Block] Tabular disclosure of the location and amount of gains and losses reported in the statement of financial performance, or when applicable, the statement of financial position. For example, (a) gains and losses recognized in the income statement on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges and (b) gains and losses initially recognized in other comprehensive income on derivative instruments designated and qualifying as cash flow hedges. Along with the tabular disclosure for other derivative instruments not designated as hedging instruments of (a) the location and amount of gains and losses reported in the statement of financial performance and (b) the location and fair value amounts of the instruments reported in the statement of financial position. Schedule of Financial Instruments Eligible for Offset In the Consolidated Balance Sheet Schedule of Derivative Instruments [Table Text Block] Statement [Table] Statement [Table] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Series A Preferred Stock Series A Preferred Stock [Member] Series C Preferred Stock Series C Preferred Stock [Member] Statement [Line Items] Statement [Line Items] Securities held to maturity, at amortized cost, fair value Preferred stock, par or stated value per share (in dollars per share) Preferred Stock, Par or Stated Value Per Share Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Preferred stock, dividend rate (percent) Preferred Stock, Dividend Rate, Percentage Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Preferred stock, liquidation preference per share (in dollars per share) Preferred Stock, Liquidation Preference Per Share Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, authorized shares (in shares) Common Stock, Shares Authorized Common stock, issued shares (in shares) Common Stock, Shares, Issued Treasury stock, shares (in shares) Treasury Stock, Shares Subsequent Events [Abstract] Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Liquidation of trust preferred securities Redemption Of Junior Subordinated Debt Redemption Of Junior Subordinated Debt Business Combinations [Abstract] Business Combination, Separately Recognized Transactions [Table] Business Combination, Separately Recognized Transactions [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Merger With Fifth Third Bancorp Merger With Fifth Third Bancorp [Member] Merger With Fifth Third Bancorp [Member] Business Combination, Separately Recognized Transactions [Line Items] Business Combination, Separately Recognized Transactions [Line Items] Number of shares called by each right (in shares) Business Combination, Common Stock Exchange Ratio Business Combination, Common Stock Exchange Ratio Cash paid per share (in dollars per share) Business Combination, Cash Paid Per Share Business Combination, Cash Paid Per Share Investment securities Available for Sale Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract] Less Than 12 Months, Fair Value Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months Less Thank 12 Months, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Less Than 12 Months, Unrealized Losses Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Less Than 12 Months, Unrealized Losses Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 12 Months or More, Fair Value Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 12 Months or More, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value 12 Months or More, Unrealized Losses Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 12 Months or More, Unrealized Losses Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Total Fair Value Debt Securities, Available-for-sale, Unrealized Loss Position Total Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value Total Unrealized Losses Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss Total Unrealized Losses Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss Held to Maturity Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract] Less Than 12 Months, Fair Value Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value Less Than 12 Months, Unrealized Losses Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 12 Months or More, Fair Value Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value 12 Months or More, Unrealized Losses Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Total Fair Value Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value Total Unrealized Losses Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss Total Less Than 12 Months, Fair Value Marketable Securities Continuous Unrealized Loss Position Less than Twelve Months Fair Value This item represents the fair value of securities that have been in a continuous unrealized loss position for less than twelve months. Less Than 12 Months, Unrealized Losses Marketable Securities Continuous Unrealized Loss Position Less than 12 Months Aggregate Losses This item represents the excess of amortized cost basis over fair value of securities that have been in a loss position for less than twelve months. 12 Months or More, Fair Value Marketable Securities Continuous Unrealized Loss Position Twelve Months or Longer Fair Value This item represents the fair value of securities that have been in a continuous unrealized loss position for twelve months or longer. 12 Months or More, Unrealized Losses Marketable Securities Continuous Unrealized Loss Position 12 Months or Longer Aggregate Losses This item represents the excess of amortized cost basis over fair value of securities that have been in a loss position for twelve months or longer. Total Fair Value Marketable Securities Continuous Unrealized Loss Position Fair Value This item represents the fair value of securities which are in an unrealized loss position. Total Unrealized Losses Marketable Securities Continuous Unrealized Loss Position Aggregate Losses This item represents the excess of amortized cost basis over fair value of securities in a loss position. Number of security positions in the investment portfolio in an unrealized loss position Marketable Securities in Unrealized Loss Positions Qualitative Disclosure Number of Positions Disclosure regarding factors, which are used to determine that the impairment of securities where cost exceeds fair value is not an other than temporary impairment (OTTI). Definitive Merger Agreement Business Combination Disclosure [Text Block] Schedule of Goodwill [Table] Schedule of Goodwill [Table] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Banking Banking Segment [Member] Banking Segment [Member] Leasing Leasing Segment [Member] Leasing Segment [Member] Mortgage Banking Mortgage Banking Segment [Member] Mortgage Banking Segment [Member] Goodwill [Line Items] Goodwill [Line Items] Goodwill [Roll Forward] Goodwill [Roll Forward] Balance at beginning of period Impairment Goodwill, Impairment Loss Balance at end of period Organization, Consolidation and Presentation of Financial Statements [Abstract] Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Summary of Short-Term Borrowings Schedule of Short-term Debt [Table Text Block] Nonrecurring basis Fair Value, Measurements, Nonrecurring [Member] Assets measured at fair value on a nonrecurring basis Financial Assets: Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Impaired loans Impaired Financing Receivable Recorded Investment Fair Value, Disclosure The estimated fair value of the recorded investment related to impaired financing receivables. Foreclosed assets Repossessed Assets Appraisal adjustment impaired loans (as a percent) Fair Value Assumption, Appraisal Adjustment Impaired Loans Fair Value Assumption, Appraisal Adjustment Impaired Loans Appraisal adjustment foreclosed assets (as a percent) Fair Value Assumption, Appraisal Adjustment Foreclosed Assets Fair Value Assumption, Appraisal Adjustment Foreclosed Assets Schedule of Financing Receivable, Allowance for Credit Losses [Table] Schedule of Financing Receivable, Allowance for Credit Losses [Table] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Commercial Portfolio Segment Commercial Portfolio Segment [Member] Commercial Real Estate Portfolio Segment Commercial Real Estate Portfolio Segment [Member] Consumer Portfolio Segment Consumer Portfolio Segment [Member] Collateral [Axis] Collateral [Axis] Collateral [Domain] Collateral [Domain] Collateralized Collateral Pledged [Member] Class of Financing Receivable, Type [Axis] Class of Financing Receivable, Type [Axis] Class of Financing Receivable, Type [Domain] Class of Financing Receivable, Type [Domain] Commercial real estate Real Estate [Member] Residential real estate Residential Real Estate Loan [Member] Residential Real Estate Loan [Member] Construction real estate Construction Loans [Member] Indirect vehicle Automobile Loan [Member] Home equity Home Equity Loan [Member] Other Other Loan [Member] Other Loan [Member] Activity in the allowance for loan losses, balance in allowance for loan losses and recorded investment in loans by portfolio segment and based on impairment method Financing Receivable, Allowance for Credit Losses [Line Items] Allowance for credit losses: Financing Receivable, Allowance for Credit Losses [Roll Forward] Beginning balance Charge-offs Financing Receivable, Allowance for Credit Losses, Write-downs Recoveries Financing Receivable, Allowance for Credit Losses, Recovery Provision Provision for Loan, Lease, and Other Losses Ending balance Unfunded Commitments Unfunded Commitments [Roll Forward] -- None. No documentation exists for this element. -- Allowance for unfunded credit commitments, Beginning balance Allowance for Unfunded Commitments This element represents the allowance for unfunded commitments. Allowance for unfunded commitments, Charge-Offs Allowance For Unfunded Commitments, Charge-Offs Allowance For Unfunded Commitments, Charge-Offs Allowance for unfunded commitments, Recoveries Allowance For Unfunded Commitments, Recoveries Allowance For Unfunded Commitments, Recoveries Allowance for unfunded commitments, Provision Allowance for Unfunded Commitments Provision This element represents the provision for unfunded commitments for loan losses. Allowance for unfunded credit commitments, Ending balance Allowance for credit losses Allowance for Credit Losses [Roll Forward] -- None. No documentation exists for this element. -- Allowance for credit losses, Beginning balance Allowance for Loan Losses and Unfunded Commitment This element represents the allowance for credit losses which includes allowance for loan losses and unfunded commitments. Allowance for loan losses and unfunded commitments charge offs Allowance For Loan Losses And Unfunded Commitments Charge Offs This element represents the allowance for credit losses charge-offs. Allowance for loan losses and unfunded commitments recoveries Allowance for Loan Losses and Unfunded Commitments Recoveries This element represents the allowance for credit losses recoveries. Allowance for loan losses and unfunded commitments provision Allowance for Loan Losses and Unfunded Commitments Provision This element represents the allowance for credit losses provisions which includes allowance for loan losses and unfunded commitments. Allowance for credit losses, Ending balance Ending allowance balance attributable to loans: Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract] Individually evaluated for impairment Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment Individually evaluated for impairment, Unfunded commitments Individually Evaluated for Impairment for Unfunded Commitment This amount represents the unfunded commitments that are individually evaluated for impairment. Individually evaluated for impairment, Total Allowance for Loan Losses and Unfunded Commitments Individually Evaluated for Impairment This element represents the allowance for loan losses and unfunded commitments which are individually evaluated for impairment. Collectively evaluated for impairment Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment Collectively evaluated for impairment, Unfunded commitments Allowance for Unfunded Commitments Collectively Evaluated for Impairment Allowance for Unfunded Commitments Collectively Evaluated for Impairment Collectively evaluated for impairment, Total Allowance for Loan Losses and Unfunded Commitments Collectively Evaluated for Impairment This element represents the allowance for credit losses which are collectively evaluated for impairment. Acquired and accounted for under ASC 310-30 Allowance Attributable to Financing Receivable Acquired and Accounted under Modification of Impaired Loans This element represents the allowance attributable to financing receivables that were acquired and accounted for under ASC 310-30. Acquired and accounted for under ASC 310-30, Unfunded commitments Allowance For Unfunded Commitments Acquired And Accounted Under Modification Of Impaired Loans Allowance For Unfunded Commitments Acquired And Accounted Under Modification Of Impaired Loans Loans: Loans and Leases Receivable, Other Information [Abstract] Individually evaluated for impairment Financing Receivable, Individually Evaluated for Impairment Individually evaluated for impairment, Unfunded commitments Unfunded Commitments, Individually Evaluated For Impairment Unfunded Commitments, Individually Evaluated For Impairment Collectively evaluated for impairment Financing Receivable, Collectively Evaluated for Impairment Collectively evaluated for impairment, Unfunded commitments Unfunded Commitments, Collectively Evaluated For Impairment Unfunded Commitments, Collectively Evaluated For Impairment Acquired and accounted for under ASC 310-30 Financing Receivable Acquired and Accounted under Modification of Impaired Loans This element represents the financing receivables that were acquired and accounted for under ASC 310-30. Acquired and accounted for under ASC 310-30, Unfunded commitments Unfunded Commitments, Acquired and Accounted For Under Modification of Impaired Loans Unfunded Commitments, Acquired and Accounted For Under Modification of Impaired Loans Total loans, Unfunded commitments Loans and Lease Receivables, Unfunded Commitment Loans and Lease Receivables, Unfunded Commitment Derivative [Table] Derivative [Table] Interest rate swap contracts, caps and floors Interest Rate Contract [Member] Foreign exchange contracts Foreign Exchange Forward [Member] Mortgage related derivatives Counterparty Name [Axis] Counterparty Name [Axis] Counterparty Name [Domain] Counterparty Name [Domain] Counterparty A Counterparty A [Member] Counterparty A [Member] Counterparty B Counterparty B [Member] Counterparty B [Member] Counterparty C Counterparty C [Member] Counterparty C [Member] Other counterparties Other Counterparties [Member] Other Counterparties [Member] Derivative [Line Items] Derivative [Line Items] Financial Assets Financial Assets [Abstract] Financial Assets [Abstract] Financial Assets, Gross Amount Recognized Financial Assets, Gross Amount Offset Derivative Asset, Fair Value, Gross Liability Financial Assets, Net Amount Recognized Derivative Asset, Fair Value, Amount Not Offset Against Collateral Repurchase Agreements, Financial Assets, Gross Amount Recognized Securities Purchased under Agreements to Resell, Gross Repurchase Agreements, Financial Assets, Gross Amount Offset Securities Purchased under Agreements to Resell, Liability Repurchase Agreements, Financial Assets, Net Amount Recognized Securities Purchased under Agreements to Resell Total Financial Assets, Gross Amount Recognized Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed, Gross Total Financial Assets, Gross Amount Offset Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed, Liability Total Financial Assets, Net Amount Recognized Derivative Asset Reverse Repurchase Agreements And Securities Borrowed, Not Offset Against Collateral Derivative Asset Reverse Repurchase Agreements And Securities Borrowed, Not Offset Against Collateral Financial Assets, Financial Instruments Derivative, Collateral, Obligation to Return Securities Financial Assets, Collateral Derivative, Collateral, Obligation to Return Cash Financial Assets, Net Amount Derivative Asset, Fair Value, Amount Offset Against Collateral Repurchase Agreements, Financial Assets, Financial Instruments Securities Purchased under Agreements to Resell, Collateral, Obligation to Return Securities Repurchase Agreements, Financial Assets, Collateral Securities Purchased under Agreements to Resell, Collateral, Obligation to Return Cash Repurchase Agreements, Financial Assets, Net Amount Securities Purchased under Agreements to Resell, Amount Offset Against Collateral Total Financial Assets, Financial Instruments Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed, Collateral, Obligation to Return Securities Total Financial Assets, Collateral Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed, Collateral, Obligation to Return Cash Total Financial Assets, Net Amount Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed, Amount Offset Against Collateral Financial Liabilities Financial Liabilities [Abstract] Financial Liabilities [Abstract] Financial Liabilities, Gross Amount Recognized Financial Liabilities, Gross Amount Offset Derivative Liability, Fair Value, Gross Asset Financial Liabilities, Net Amount Recognized Derivative Liability, Fair Value, Amount Not Offset Against Collateral Repurchase Agreements, Financial Liabilities, Gross Amount Recognized Securities Sold under Agreements to Repurchase, Gross Repurchase Agreements, Financial Liabilities, Gross Amount Offset Securities Sold under Agreements to Repurchase, Asset Repurchase Agreements, Financial Liabilities, Net Amount Recognized Securities Sold under Agreements to Repurchase Total Financial Liabilities, Gross Amount Recognized Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned, Gross Total Financial Liabilities, Gross Amount Offset Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned, Asset Total Financial Liabilities, Net Amount Recognized Derivative Liability Securities Sold Under Agreements To Resell And Securities Loaned, Not Offset Against Collateral Derivative Liability Securities Sold Under Agreements To Resell And Securities Loaned, Not Offset Against Collateral Financial Liabilities, Financial Instruments Derivative, Collateral, Right to Reclaim Securities Financial Liabilities, Collateral Derivative, Collateral, Right to Reclaim Cash Financial Liabilities, Net Amount Derivative Liability, Fair Value, Amount Offset Against Collateral Repurchase Agreements, Financial Liabilities, Financial Instruments Securities Sold under Agreements to Repurchase, Collateral, Right to Reclaim Securities Repurchase Agreements, Financial Liabilities, Collateral Securities Sold under Agreements to Repurchase, Collateral, Right to Reclaim Cash Repurchase Agreements, Financial Liabilities, Net Amount Securities Sold under Agreements to Repurchase, Amount Offset Against Collateral Total Financial Liabilities, Financial Instruments Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned, Collateral, Right to Reclaim Securities Total Financial Liabilities, Collateral Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned, Collateral, Right to Reclaim Cash Total Financial Liabilities, Net Amount Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned, Amount Offset Against Collateral Number of operating segments Number of Operating Segments Impairment Weighted average amortization period (in years) Finite-Lived Intangible Assets, Remaining Amortization Period Long-Term Borrowings Long-term Debt [Text Block] Schedule of Financing Receivable, Troubled Debt Restructurings [Table] Schedule of Financing Receivable, Troubled Debt Restructurings [Table] Financial Instrument Performance Status [Axis] Financial Instrument Performance Status [Axis] Financial Instrument Performance Status [Domain] Financial Instrument Performance Status [Domain] Performing Performing Financial Instruments [Member] Non-performing Nonperforming Financial Instruments [Member] Industry Sector [Axis] Industry Sector [Axis] Industry Sector [Domain] Industry Sector [Domain] Industrial Commercial and Industrial Sector [Member] Office Office Loan [Member] Portfolio segment of the company's total financing receivables related to commercial real estate in office sector. Other Commercial Real Estate Other [Member] Portfolio segment of the company's total financing receivables related to commercial real estate in other sector. Multifamily Multifamily Loan [Member] Portfolio segment of the company's total financing receivables related to commercial real estate in multifamily sector. Retail Retail Loan [Member] Portfolio segment of the company's total financing receivables related to commercial real estate in retail sector. Restructured loans Financing Receivable, Modifications [Line Items] Number of Loans Financing Receivable Restructured Number of Contracts The number of financing receivables that have been modified by troubled debt restructurings. Pre-Modification Recorded Investment Financing Receivable Pre Modification Recorded Investment The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings before the financing receivable has been modified. Post-Modification Recorded Investment Financing Receivable Post Modification Recorded Investment The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings after the financing receivable has been modified. Charge-offs and Specific Reserves Chargeoffs and Specific Reserves This element represents the charge-offs and specific reserves of restructured loans. Redefaulted loans Financing Receivable Redefaulted Loans Represents troubled debt restructurings that were re-defaulted. Period past due of redefaulted loans Financing Receivable Period Past Due of Redefaulted Loans This element represents the period past due of troubled debt restructurings that have re-defaulted. Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Omnibus Incentive Plan Omnibus Incentive Plan [Member] Represents information pertaining to the Omnibus Plan. Stock options Employee Stock Option [Member] Restricted shares Restricted Shares [Member] Restricted stock is awarded by a company to their employees as a form of incentive compensation. It includes restricted stock, restricted stock units, performance shares, performance units or other stock-based awards. Restricted stock Restricted Stock [Member] Performance-based restricted stock units Performance-based restricted stock units [Member] Performance-based restricted stock units issued based on the Company's total stockholder return relative to a specified peer group. Taylor Capital Group, Inc. Taylor Capital Group, Inc. [Member] Taylor Capital Group, Inc. [Member] Maximum Title of Individual [Axis] Title of Individual [Axis] Relationship to Entity [Domain] Relationship to Entity [Domain] Director Director [Member] Stock-based compensation Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Additional number of share authorized (in shares) Share Based Compensation Arrangement by Share Based Payment Award Plan Modification Additional Number of Shares Authorized The additional number of shares (or other type of equity) approved by stockholders for incentive awards as a result of the modification of an equity-based compensation plan. Total number of shares authorized (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Increase in amount of shares authorized (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized Grants beyond threshold limit count numerator (in shares) Share Based Compensation Arrangement by Share Based Payment Award, Grants Beyond Threshold Limit Count Numerator Represents the numerator value of shares granted beyond the threshold limit. Percentage of shares authorized for issuance Share-based Compensation Arrangement by Share-based Payment Award, Percentage Of Shares Authorized For Issuance Share-based Compensation Arrangement by Share-based Payment Award, Percentage Of Shares Authorized For Issuance Vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Shares available for future grant (in shares) Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant Other Than Options And SARs The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. Shares may be granted for awards in the form of restricted stock, restricted stock units, performance shares, performance units or other stock-based awards excluding stock options and stock appreciation rights. Award requisite service period Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period Expiration term of options Share-based Compensation Arrangement By Share Based Payment Award, Expiration Term Description of the period of time, from the grant date, after which the equity-based award expires. Maximum percentage of directors fees with option to be received in equity based incentive awards Share Based Compensation Arrangement by Share Based Payment Award Maximum Percentage of Directors Fees with Option to be Received in Equity Based Incentive Awards Maximum percentage of director's fees eligible to be received in equity-based incentive awards in lieu of cash. Period of restriction for sale of shares vested Share Based Compensation Arrangement by Share Based Payment Award Period of Restriction for Sale of Shares Vested Represents the period of restriction for the sale of underlying shares of stock options by directors as a condition for receiving the stock options. Intrinsic value of options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Intrinsic value of restricted shares that vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested Restricted stock issued (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period Percentage of shares earned to number of units issued Share-Based Compensation Arrangement By Share Based Payment Award, Percentage Of Shares Earned To Number Of Units Issued Share-Based Compensation Arrangement By Share Based Payment Award, Percentage Of Shares Earned To Number Of Units Issued Performance based restricted units performance period Performance based restricted units performance period The time period the Company's stockholder return is compared to the performance group. Shares that have been vested, issued (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Vested, Shares Issued in Period Based On Performance Threshold Share-based Compensation Arrangement by Share-based Payment Award, Vested, Shares Issued in Period Based On Performance Threshold Share based compensation restricted stock units multiplier Share Based Compensation Restricted Stock Units Multiplier The multiplier used to convert restricted units to restricted shares in the table presentation of restricted shares/units. Unrecognized compensation cost related to nonvested share-based compensation Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Period for recognition Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Concentration Risk by Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] State of Illinois Geographic Concentration Risk [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Securities Portfolio Securities Portfolio [Member] Securities Portfolio [Member] Available for Sale Debt Securities, Available-for-sale [Abstract] Amortized Cost Gross Unrealized Gains Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax Gross Unrealized Losses Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax Amortized Cost Available-for-sale Securities, Amortized Cost Basis Gross Unrealized Gains Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax Gross Unrealized Losses Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax Fair Value Held to Maturity Debt Securities, Held-to-maturity [Abstract] Amortized Cost Gross Unrealized Gains Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain Gross Unrealized Losses Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss Gross Unrealized Gains Marketable Securities Unrealized Gain As of the balance sheet date, the excess of fair value over amortized cost for marketable securities. Gross Unrealized Losses Marketable Securities Unrealized Loss As of the balance sheet date, the excess of amortized cost over fair value for marketable securities. Percentage of investments issued by states and political subdivisions that were within the state of Illinois Concentration Risk, Percentage Percentage of securities consisting general obligation issues Percentage of Securities Consisting General Obligation Issues Represents the percentage of securities issued by state and political subdivisions that consist of general obligation issues. Percentage of securities insured Percentage of Securities Insured Percentage of Securities Insured Notes payable Loans Payable [Member] Subordinated notes, net of issuance costs Subordinated Debt [Member] Unsecured term Unsecured Debt [Member] Notes payable to banks Notes Payable to Banks [Member] Other secured borrowings Notes Payable, Other Payables [Member] Long-term borrowings Weighted Average Interest Rate Long-term Debt, Weighted Average Interest Rate, at Point in Time Amount Federal Home Loan Bank advances Long-term Federal Home Loan Bank Advances Interest rate Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End Interest rate Debt Instrument, Interest Rate, Effective Percentage Equipment pledged as collateral Pledged Assets Not Separately, Reported Equipment Pledged for Debt Amortized cost of equipment included in lease investments that is pledged as collateral for notes payable. Quarterly principal payments Debt Instrument, Periodic Payment, Principal Debt instrument, face amount Debt Instrument, Face Amount Debt instrument, stated interest rate Debt Instrument, Interest Rate, Stated Percentage Number of Options Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Outstanding, beginning balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Expired (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period Forfeited or cancelled (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Outstanding, ending balance (in shares) Options exercisable (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Outstanding, beginning balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Granted (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Exercised (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Expired (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price Forfeited or cancelled (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Outstanding, ending balance (in dollars per share) Options exercisable (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Weighted Average Remaining Contractual Term (In Years) Share Based Compensation Arrangement by Share Based Payment Award Options Weighted Average Remaining Contractual Term [Abstract] -- None. No documentation exists for this element. -- Outstanding, balance (in years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Options exercisable (in years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Aggregate Intrinsic Value (in thousands) Share Based Compensation Arrangement by Share Based Payment Award Aggregate Intrinsic Value [Abstract] -- None. No documentation exists for this element. -- Options outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Options exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Purchased credit-impaired loans Deteriorated Loans Transferred in [Abstract] Changes in the accretable yield for purchased credit-impaired loans Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward] Balance at beginning of period Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Purchases Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Additions Accretion Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Accretion Other Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Accretable Yield Other Other increase or decrease in the aggregate excess of a loan's cash flows expected to be collected over the investor's initial investment in the loan for loans not accounted for as debt securities. Balance at end of period Number of highest rating categories by rating services company Number of highest rating categories by rating services company Represents the number of highest rating categories by Moody's Investor Services or Standard & Poor's Rating Services Number of highest rating categories to be achieved for classification as investment grade companies Number of highest rating categories to be achieved for classification as investment grade companies Represents the number of highest rating categories to be achieved for classification as investment grade companies Credit Loss Status [Axis] Credit Loss Status [Axis] Credit Loss Status [Domain] Credit Loss Status [Domain] Purchased Credit-Impaired Loans Financial Asset Acquired with Credit Deterioration [Member] Real estate Financing Receivable, Allowance for Credit Losses [Line Items] Loans secured by owner-occupied properties Loans Secured By Owner-Occupied Properties Loans Secured By Owner-Occupied Properties Percentage of collateral pledge of first mortgage loans as per agreement (minimum) Federal Home Loan Bank, Advances, Minimum Percentage of Collateral Pledge of First Mortgage Loans as Per Agreement Minimum percentage of outstanding advances from Federal Home Loan Bank as collateral pledge of first mortgage loans as per the collateral pledge agreement. Percentage of collateral pledge of home equity loans as per agreement (minimum) Federal Home Loan Bank, Advances, Minimum Percentage of Collateral Pledge of Home Equity Loans as Per Agreement Percentage of outstanding advances from Federal Home Loan Bank as collateral pledge of home equity loans as per the collateral pledge agreement. Percentage of collateral pledge of commercial real estate loans as per agreement (minimum) Federal Home Loan Bank Advances Minimum Percentage Of Collateral Pledge Of Commercial Real Estate Loans As Per Agreement Federal Home Loan Bank Advances Minimum Percentage Of Collateral Pledge Of Commercial Real Estate Loans As Per Agreement Percentage of collateral pledge of outstanding advances from federal home loan bank as per agreement (minimum) Federal Home Loan Bank Advances Minimum Percentage Of Collateral Pledge Of Outstanding Advances From Federal Home Loan Bank As Per Agreement Federal Home Loan Bank Advances Minimum Percentage Of Collateral Pledge Of Outstanding Advances form Federal Home Loan Bank As Per Agreement Loans pledged as collateral for long-term Federal Home Loan Bank advances Pledged Financial Instruments, Not Separately Reported, Loans Receivable, for Federal Home Loan Bank Debt Loans required to be pledged as collateral for long-term Federal Home Loan Bank advances Pledged Financial Instruments, Not Separately Reported, Loans Receivable, for Federal Home Loan Bank Debt, Required to be Pledged Pledged Financial Instruments, Not Separately Reported, Loans Receivable, for Federal Home Loan Bank Debt, Required to be Pledged Loans pledged as collateral Pledged Financial Instruments, Not Separately Reported, Loans Receivable, for Federal Reserve Bank Debt Pledged Financial Instruments, Not Separately Reported, Loans Receivable, for Federal Reserve Bank Debt Provision Allowance for loan losses and unfunded commitments write offs net of recoveries Allowance for Loan Losses and Unfunded Commitments Write Offs Net of Recoveries Reduction to the allowance for credit losses related to financing receivables deemed uncollectible net of recoveries. Allowance for loan losses and unfunded commitments acquired with deteriorated credit quality Allowance for Loan Losses and Unfunded Commitments Acquired with Deteriorated Credit Quality This element represents the allowance for loan losses and unfunded commitments acquired and accounted for under ASC 310-30. Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Estimated fair values of financial instruments Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Derivative financial instruments Fair value assumption, allowance for impaired real estate loans percentage Fair Value Assumption, Allowance For Impaired Real Estate Loans Percentage Fair Value Assumption, Allowance For Impaired Real Estate Loans Percentage Maximum maturity period of short-term borrowings where carrying value approximates fair value (in days) Short Term Borrowings Carrying Value Approximated Fair Value Maximum Maturity Period The maximum maturity period of short-term borrowings where carrying value approximates fair value. Minimum maturity period of short-term borrowings where fair value is based on discounted value of contractual cash flows (in days) Short Term Borrowings Fair Value Based on Discounted Value of Contractual Cash Flows Minimum Maturity Period The minimum maturity period of short-term borrowings where fair value is based on the discounted value of contractual cash flows. Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Fair value assumptions Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Risk-free interest rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Expected volatility of Company’s stock Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Expected dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Expected life of options Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Weighted average fair value per option of options granted during the year (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Financial Assets and Financial Liabilities Measured at Fair Value on a Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Summary of Financial Assets Measured at Fair Value on a Recurring Basis, Unobservable Inputs Used Schedule of Fair Value, Unobservable Inputs [Table Text Block] Schedule of Fair Value, Unobservable Inputs [Table Text Block] Schedule of Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets Schedule of Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets [Table Text Block] Financial Assets Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Level 3) Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Assets Measured at Fair Value on a Nonrecurring Basis Fair Value Measurements, Nonrecurring [Table Text Block] Estimated Fair Values of Financial Instruments Fair Value, by Balance Sheet Grouping [Table Text Block] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Consumer related Consumer Loan [Member] Real estate Real Estate Loan [Member] Other Loans Other Loans Receivable [Member] Class of financing receivables not separately disclosed. Purchased Loans Receivable by Impairment Classification [Axis] Purchased Loans Receivable by Impairment Classification [Axis] Categorization of purchased loans by impairment classification. Purchases Loans Receivable by Impairment Classification [Domain] Purchases Loans Receivable by Impairment Classification [Domain] Categorization of purchased loans by impairment classification. Purchased Credit-Impaired Loans Purchased Credit Impaired Loans Receivable [Member] Loans purchased that are classified as credit-impaired. Purchased Non-Credit-Impaired Loans Purchased Non Credit Impaired Loans Receivable [Member] Loans purchased that are classified as non-credit-impaired. Ginnie Mae Ginnie Mae [Member] Ginnie Mae [Member] Loans Accounts, Notes, Loans and Financing Receivable [Line Items] Covered loans Covered Loans Reflects the aggregate gross carrying amount of all categories of loans and leases held in portfolio whose losses will be shared with the Federal Deposit Insurance Corporation under loss sharing agreements before deducting the allowance for losses on loans and leases. Non covered loans Non Covered Loans Reflects the aggregate gross carrying amount of all categories of loans and leases held in portfolio that were acquired but whose losses will not be shared with the Federal Deposit Insurance Corporation. Total acquired Certain Loans Acquired in Transfer Accounted for as Debt Securities, Carrying Amount, Net Consumer related purchased credit-impaired loans Financing Receivable, Purchased Loans, Amount Financing Receivable, Purchased Loans, Amount Earnings Per Share [Abstract] Earnings Per Common Share Earnings Per Share [Text Block] Schedule of Financing Receivables Past Due [Table] Schedule of Financing Receivables Past Due [Table] Total loans Loans Receivable [Member] Health care Healthcare Sector [Member] Contractual aging of the recorded investment in loans Financing Receivable, Recorded Investment, Past Due [Line Items] Period past due of recorded investment in loans Financing Receivable Period Past Due of Recorded Investment in Loans Period past due of recorded investment in loans. Non-accrual Financing Receivable, Recorded Investment, Nonaccrual Status Loans past due 90 days or more and still accruing Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing Changes in the carrying amount of core deposit and client relationship intangibles Intangible Assets, Net (Excluding Goodwill) [Roll Forward] -- None. No documentation exists for this element. -- Balance at beginning of period Amortization expense Amortization of Intangible Assets Balance at end of period Gross carrying amount Finite-Lived Intangible Assets, Gross Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Total loans, excluding purchased credit-impaired loans Gross Loans Excluding Purchase Credit Impaired And Covered Loans [Member] Represents gross loans excluding purchase credit impaired and covered loans. Purchased credit-impaired loans Non-performing loan aging Financing Receivables, Period Past Due [Axis] Financing Receivables, Period Past Due [Axis] Financing Receivables, Period Past Due [Domain] Financing Receivables, Period Past Due [Domain] 30-59 Days Past Due Financing Receivables, 30 to 59 Days Past Due [Member] 60-89 Days Past Due Financing Receivables, 60 to 89 Days Past Due [Member] Loans Past Due 90 Days or More Financing Receivables, Equal to Greater than 90 Days Past Due [Member] Current Financing Receivable, Recorded Investment, Current Past Due Financing Receivable, Recorded Investment, Past Due Total loans, excluding covered loans Derivative Financial Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Stock Incentive Plans Disclosure of Compensation Related Costs, Share-based Payments [Text Block] New Authoritative Accounting Guidance New Accounting Pronouncements and Changes in Accounting Principles [Text Block] Loan Restructuring Modification [Axis] Loan Restructuring Modification [Axis] Loan Restructuring Modification [Domain] Loan Restructuring Modification [Domain] Extended Maturity, Amortization and Reduction of Interest Rate Extended Maturity, Amortization and Contractual Interest Rate Reduction [Member] Extended Maturity, Amortization and Contractual Interest Rate Reduction [Member] Extended Maturity and/or Amortization Extended Maturity and Amortization [Member] Extended Maturity and Amortization [Member] Delay in Payments and/or Reduction of Interest Rate Payment Deferral or Contractual Interest Rate Reduction [Member] Payment Deferral or Contractual Interest Rate Reduction [Member] Post-modification recorded investment Financing Receivable, Modifications, Post-Modification Recorded Investment Long-term Purchase Commitment [Table] Long-term Purchase Commitment [Table] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Home equity lines Home Equity Line of Credit [Member] Other commitments Other Commitments [Member] Other legally binding commitments to extend credit to counterparty under certain terms and conditions. Standby Standby Letters of Credit [Member] Commercial Commercial Letters of Credit [Member] A document typically issued by a financial institution to a business concern for commercial purposes which acts as a guarantee of payment to a beneficiary, or as the source of payment for a specific transaction. Long-term Purchase Commitment [Line Items] Long-term Purchase Commitment [Line Items] Dollar amount of line of credit outstanding Credit Commitments of Balance Sheet Risks Represents the total amount of contractual commitments where the entity is party to credit-related financial instruments with off-balance-sheet risk in the normal course of business to meet the financing needs of its customers. Commitments [Abstract] Commitments [Abstract] -- None. No documentation exists for this element. -- Maximum maturity period for letters of credit (in years) Letters of Credit Maximum Maturity Period Represents the maximum number of years for which both standby and commercial letters of credit are normally issued. Increase (decrease) in maximum potential amount of future payments under letters of credit Letters of Credit Maximum Exposure Increase (Decrease) Represents the increase (decrease) in the maximum potential amount of future payments that the entity would be entitled to pay under letters of credit. Dollar amount of letters of credit outstanding Letters of Credit Outstanding, Amount Letters of credit issued or renewed Letters of Credit Issued or Renewed Represents the amount of letters of credit issued or renewed during the period. Capital expenditure commitments outstanding Long-term Purchase Commitment, Amount Concentrations of credit risk Risks and Uncertainties [Abstract] Concentration risk Statement of Stockholders' Equity [Abstract] Statement, Equity Components [Axis] Preferred Stock Preferred Stock [Member] Common Stock Common Stock [Member] Additional Paid-in Capital Additional Paid-in Capital [Member] Treasury Stock Treasury Stock [Member] Non-controlling Interest Noncontrolling Interest [Member] Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Beginning balance Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Net of Tax Conversion of preferred stock to common stock Stock Issued During Period, Value, Conversion of Convertible Securities Redemption of preferred stock Stock Redeemed or Called During Period, Value Cash dividends declared on preferred shares Dividends, Preferred Stock, Cash Cash dividends declared on common shares Dividends, Common Stock Restricted common stock activity, net of tax Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Stock option activity, net of tax Adjustments to Additional Paid in Capital Stock Option Exercised This element represents the adjustments made to the paid in capital from stock options exercised. Repurchase of common shares in connection with employee benefit plans and held in trust for deferred compensation plan Treasury Stock And Stock Held In Trust Value Acquired Cost Method Equity impact of the cost of common and preferred stock that were repurchased during the period, including the purchase of shares held in trust for deferred compensation plan. Recorded using the cost method. Stock-based compensation expense Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Purchase of additional investment in subsidiary from minority owners Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests Ending balance Impaired Loans Related Allowance [Axis] Impaired Loans Related Allowance [Axis] Attributes of financing receivables classified as impaired with specific allowance or with no specific allowance related to the receivables by class of financing receivable. Impaired Loans Related Allowance [Domain] Impaired Loans Related Allowance [Domain] Represents a subset of a class of impaired loans that have or do not have the specific allowances related to the impaired receivables. Impaired financing receivable with no allowance Impaired Financing Receivable With No Allowance [Member] Impaired Financing Receivable With No Allowance [Member] Impaired financing receivable with allowance Impaired Financing Receivable With Allowance [Member] Impaired Financing Receivable With Allowance [Member] Real estate Other consumer Amount of mortgage loans in process of foreclosure Mortgage Loans in Process of Foreclosure, Amount Unpaid Principal Balance Impaired Financing Receivable, Unpaid Principal Balance Recorded Investment Impaired Financing Receivable, Recorded Investment Partial Charge-offs Impaired Financing Receivable Partial Charge offs Amount of partial charge-offs related to the recorded investment. Allowance for Loan Losses Allocated Impaired Financing Receivable, Related Allowance Average Recorded Investment Impaired Financing Receivable, Average Recorded Investment Interest Income Recognized Impaired Financing Receivable, Interest Income, Accrual Method Restructured loans Financing Receivable, Modifications, Recorded Investment Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts [Axis] Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Carrying Amount Reported Value Measurement [Member] Estimated Fair Value Estimate of Fair Value Measurement [Member] Interest earning deposits with banks Investment securities available for sale Investment securities held to maturity Loans, net Loans Receivable, Fair Value Disclosure Accrued interest receivable Interest Receivable Financial Liabilities: Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Non-interest bearing deposits Interest bearing deposits