Claims by Former Controlling Shareholders of Acquired Entity [Member]
The litigation involving claims by former controlling shareholders of LFIN of tax refunds received by the entity.
Claims by former controlling shareholders of LFIN
Commercial Receivables [Member]
Class of financing receivables related to business purposes other than real estate.
Commercial
Amortized cost and estimated fair value by type of investment security
Investment [Table Text Block]
Commercial Real Estate Other Construction and Land Development Receivable [Member]
Class of financing receivables related to commercial real estate that is for other construction and land development purposes.
Commercial real estate: other construction and land development
Real estate - construction
Commercial Real Estate Farmland and Commercial Receivable [Member]
Class of financing receivables related to commercial real estate that is for farmland and commercial purposes.
Commercial real estate: farmland and commercial
Residential First Mortgage Financing Receivable [Member]
Class of financing receivables related to residential receivables secured by real property that has a first (highest) lien on such property in the event of default by the borrower.
Residential: first lien
Residential Second Mortgage Financing Receivable [Member]
Class of financing receivables related to residential receivables secured by real property that has a second (lower or subordinate) lien on such property in the event of default by the borrower.
Residential: junior lien
Investment [Table]
Foreign Receivables [Member]
Class of financing receivables related to a location outside of the entity's country of domicile.
Foreign
Commercial Real Estate Multifamily Receivable [Member]
Class of financing receivables related to commercial real estate that is for multifamily purposes.
Commercial real estate: multifamily
Trust One [Member]
Trust I formed by the entity for the purpose of issuing trust preferred securities.
Trust I
Mortgage Backed Securities Issued by U.S. Government Corporations and Agencies Securities [Member]
Debt securities collateralized by real estate mortgage loans (mortgages), issued by US government agencies, such as the Government National Mortgage Association (GNMA or Ginnie Mae).
Mortgage-backed securities by Ginnie Mae
Amendment Description
Reflects the sum of the carrying amounts of unpaid loans issued to businesses to provide financing for cash needs, financial asset purchases, or farm-related purposes. Includes all loans not included in another category. This category includes, but is not limited to, loans to real estate investment trusts; mortgage companies, banks, and other financial institutions; loans for carrying securities; and loans for agricultural purposes. This element does not include loans secured primarily by developed real estate.
Loans Receivable Commercial Financial and Agricultural [Member]
Commercial, financial and agricultural
Amendment Flag
Impaired Financing Receivable Allowance Type [Axis]
Impaired financing receivables classified based on allowance determination as either with no specific allowance or with related allowance.
Special Pass [Member]
A category of financing receivables considered to have weaknesses which represent a greater degree of risk, warranting "extra attention".
Watch List - Pass
Schedule of Share Based Compensation Arrangement by Share Based Payment Award, Option Type [Axis]
Pertinent data describing and reflecting required disclosures pertaining to stock option arrangement, by plan.
Incentive Stock Options to 10 Percent Shareholders [Member]
Common stock awarded by the entity to 10% shareholders as a form of an incentive compensation under the incentive stock option plan.
Incentive stock options granted to 10% shareholders
Investment [Axis]
Trust Six [Member]
Trust VI formed by the entity for the purpose of issuing trust preferred securities.
Trust VI
Trust Seven [Member]
Trust VII formed by the entity for the purpose of issuing trust preferred securities.
Trust VII
Trust Eight [Member]
Trust VIII formed by the entity for the purpose of issuing trust preferred securities.
Trust VIII
Trust Nine [Member]
Trust IX formed by the entity for the purpose of issuing trust preferred securities.
Trust IX
Trust Eleven [Member]
Trust XI formed by the entity for the purpose of issuing trust preferred securities.
Trust XI
Trust Ten [Member]
Trust X formed by the entity for the purpose of issuing trust preferred securities.
Trust X
Trust Twelve [Member]
Trust XIII formed by the entity for the purpose of issuing trust preferred securities.
Trust XII
Bond Meeting Original Contract Terms [Member]
Bond meeting the original contract terms
Represents the portion of the bond where the underlying residential mortgage had not been meeting the original contract terms for at least 24 months.
Bond Not Meeting Original Contract Terms [Member]
Represents the portion of the bond where the underlying residential mortgage had been meeting the original contract terms for at least 24 months.
Bond not meeting the original contract terms
Document and Entity Information
Total cash and cash equivalents
Cash, Cash Equivalents, and Federal Funds Sold Excluding Time Deposits
The sum of cash and cash equivalents plus Federal Funds Sold excludes time deposit. Cash and cash equivalents consist of short term, highly liquid investments that are readily convertible to known amounts of cash and are so near their maturity that they present negligible risk of changes in value due to changes in interest rates -- usually with an original maturity less than 90 days.
Other borrowings
Interest Expense Other Borrowings
Interest expense incurred during the reporting period on other borrowings not defined elsewhere in the taxonomy. Includes interest expense incurred on both the short-term and long-term borrowings (advances) with the Federal Home Loan Bank and other short term borrowings.
Current Fiscal Year End Date
Savings and interest bearing demand deposits
Interest Expense Savings and Demand Deposit Accounts
This element represents the Interest expense incurred on all savings and demand deposit accounts.
Other Service Charges, Commissions and Fees [Abstract]
Other service charges, commissions and fees
Banking
Service Charges, Fees and Commissions, Other, Banking
Service charges, fees, and commission's revenue earned from banking operations, other than from deposit accounts.
Litigation Expense
Litigation expense
This element represents the expenses incurred by the entity which are directly related and attributable to settlement costs of litigation.
Impairment charges, other-than-temporary impairment charges
Other than Temporary Impairment Losses Investment Portion Recognized in Earnings Net
The amount of other than temporary impairment (OTTI) losses on equity securities, OTTI related to credit losses on debt securities, and OTTI losses on debt securities when the entity intends to sell the securities or it is more likely than not that the entity will be required to sell the securities before recovery of the amortized cost basis. Additionally, this item includes OTTI losses recognized during the period on investments accounted for under the cost method of accounting.
Accretion of investment securities discounts
Accretion of Discounts Investments
The periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings when the security was purchased at a discount. As a noncash item, this element is an adjustment to net income when calculating cash provided by (used in) operations using the indirect method.
Accretion of time deposit discounts
Accretion of Time Deposit Discounts
The periodic adjustments of the differences between time deposits' face values and purchase prices that are charged against earnings when the time deposit was purchased as part of an acquisition. As a noncash item, this element is an adjustment to net income when calculating cash provided by (used in) operations using the indirect method.
Amortization of Investment Securities Premiums
Amortization of investment securities premiums
The periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings when the security was purchased at a premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by (used in) operations using the indirect method.
Amortization of Loans Receivable Premiums
Amortization of loan premiums
The periodic adjustments of the differences between loans receivables' face values and purchase prices that are charged against earnings when the loans receivable were purchased at a premium as part of an acquisition. As a noncash item, this element is an adjustment to net income when calculating cash provided by (used in) operations using the indirect method.
Accretion of discounts on time deposits with banks
Accretion of Discounts on Time Deposits with Banks
The periodic adjustments of the differences between time deposits' face values and purchase prices that are charged against earnings when the time deposit was purchased at a discount as part of an acquisition. As a noncash item, this element is an adjustment to net income when calculating cash provided by (used in) operations using the indirect method.
Depreciation and amortization of leased assets
Depreciation and Amortization of Leased Assets
The expense of depreciation and amortization charged against earnings for the periodic recognition of capitalized leases. This element may apply to energy companies that lease mineral producing properties and to other enterprises that capitalize property, plant, or equipment obtained through capital leases.
Document Period End Date
Change in Fair Value of Loans, Other Real Estate Owned
Specific reserve, other real estate owned
This element represents noncash expenses charged to earning related to change in fair value of loans payable on other real estate owned during the reporting period.
Distributions from Other Investments
Distributions received on other investments
Cash inflows from other investments. Includes distributions from equity method investments plus other cash inflows from investments not individually reported.
Adjustment to goodwill related tax contingencies
Adjustment to Goodwill Related Tax Contingencies
The cash inflow (outflow) related to the adjustment to goodwill tax contingencies.
Net increase in non-interest bearing demand deposits
Increase (Decrease) in Noninterest Bearing Demand Deposits
The net cash inflow (outflow) in the total of all Noninterest-bearing demand deposits classified as cash flows from financing activities.
Net (decrease) increase in savings and interest bearing demand deposits
Increase (Decrease) in Saving and Interest Bearing Demand Deposits
The net cash inflow (outflow) in the total of all interest bearing deposit accounts, classified as cash flows from financing activities.
Payments of cash dividends in lieu of fractional shares
Payments of Cash Dividends in Lieu of Fractional Shares
Cash dividends declared by an entity during the period in lieu of fractional shares.
Dividends Preferred Stock Accrued
Accrued dividends, preferred shares
This element represents amount of dividend accrued to preferred shareholders.
Investment Securities Purchases, Not yet Settled
Purchases of available-for-sale securities not yet settled
Future cash outflow to pay for purchases of investment securities that have not been settled through a cash transaction yet.
Accrued Partial Redemption of Preferred Securities, Non Cash Financing and Investing Activities Impact
Future cash Inflows on account of redemption of trust preferred securities forming part of non cash financing and investing activities.
Accrued partial redemption of trust preferred securities, IB Capital Trust I
Entity [Domain]
Investment Securities Sold, Not yet Settled
Sales of available-for-sale securities not yet settled
Future cash inflow from sale of investment securities that have not been settled through a cash transaction yet.
Basis of Presentation
Basis of Presentation [Text Block]
Basis of Presentation
The combined disclosure of Organization, Consolidation and Presentation of Financial Statements; Significant Accounting Policies; and New Accounting Pronouncements. The Organization, Consolidation and Presentation disclosure contains the description of the organization, the consolidation policy, and the presentation of the financial statements. The Significant Accounting Policies disclosure contains the description of all significant accounting policies of the reporting entity. The New Accounting Pronouncements and Changes in Accounting Principles Disclosure represents disclosure of any changes in an accounting principle, including a change from one generally accepted accounting principle to another generally accepted accounting principle when there are two or more generally accepted accounting principles that apply or when the accounting principle formerly used is no longer generally accepted. Also discloses any change in the method of applying an accounting principle, or any change in an accounting principle required by a new pronouncement in the unusual instance that a new pronouncement does not include specific transition provisions.
Allowance for Probable Loan Losses
Other Borrowed Funds
Schedule of Share Based Compensation, Nonvested Stock Options Activity [Table Text Block]
Tabular disclosure of the number and weighted-average grant date fair value for nonvested stock options that were outstanding at the beginning and end of the year and that were granted, forfeited or vested during the year.
Summary of the status of the entity's non-vested options
Schedule of Junior Subordinated Borrowings [Table Text Block]
Junior subordinated deferrable interest debentures, major types of business trusts
Tabular disclosure of borrowings under junior subordinated debt agreements, including restrictive covenants, collateral, interest rates and due dates, amounts due by date and amount owed in total.
Operating Segment, Number
The number of operating segments of the entity.
Number of operating segments
Number of Active Operating Subsidiaries
Number of active operating bank subsidiaries
Represents the number of active operating subsidiaries of the entity.
Number of insurance-related subsidiaries
Entity Number of Insurance Related Subsidiaries
Represents the number of insurance-related subsidiaries owned by the entity.
Number of Components Other than Temporary Impairment Segregated
Number of components in which other-than-temporary impairment is segregated
Represents the number of components in which other-than-temporary impairments are segregated.
Non Accrual Loans [Abstract]
Non-Accrual Loans
Minimum Period for Past Due Unsecured Loans Outstanding Not Placed on Non Accrual Status under Special Circumstances
Minimum period that past due unsecured loans outstanding may not be placed on nonaccrual status under special circumstances (in days)
Represents the minimum period that past due unsecured loans outstanding may not be placed on nonaccrual status under special circumstances.
Maximum Period Outstanding Non Consumer Loans are Evaluated for Non Accrual Status
Maximum period of non-consumer loans outstanding that is used to evaluate whether loans should be placed on non-accrual status (in days)
Represents the maximum period of non-consumer loans outstanding that is used to evaluate whether loans should be placed on non-accrual status.
Income Taxes [Abstract]
Income Taxes
Percentage of Likelihood of Realization of Recognized Tax Benefit
Percentage of likelihood of realization of recognized tax benefit
Represents the percentage of likelihood of realization of recognized benefit.
Consolidated Statements of Cash Flows [Abstract]
Consolidated Statements of Cash Flows
Maximum Term of Maturity to Classify Short Term Investments as Cash Equivalents
Maximum term of maturity to classify short term investments as cash equivalents (in months)
Represents the maximum term of maturity of short term investments to be classified as cash equivalents.
Cash Flow Reclassification [Member]
Represents activity related to reclassification of cash flow activity between operating, investing or financing activities.
Cash flow adjustment
Impaired Financing Receivable, Recorded Investment Fair Value Disclosure
Impaired Loans
The estimated fair value of the recorded investment related to impaired financing receivables measured at fair value.
Other real estate owned
Carrying amount as of the balance sheet date of other real estate and foreclosed assets. Other real estate may include real estate investments, real estate loans that qualify as investments in real estate. Foreclosed assets include all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings.
Other Real Estate and Foreclosed Assets in Use
Fair Value Measurements, Discounted Cash Flow Model Assumptions Future Principal Prepayment Rates, Low End of Range
Estimated future principal prepayment rate assumption, low end of range (as a percent)
The low end of range of estimated future principal prepayment rate assumption used in the discounted cash flow model for investments classified within level 3 of the fair value hierarchy.
Fair Value Measurements, Discounted Cash Flow Model Assumptions Future Principal Prepayment Rates, High End of Range
Estimated future principal prepayment rate assumption, high end of range (as a percent)
The high end of range of estimated future principal prepayment rate assumption used in the discounted cash flow model for the investments classified within level 3 of the fair value hierarchy.
Fair Value Measurements, Discounted Cash Flow Model Assumptions Future Principal Prepayment Discount Rate
Estimated future principal prepayment rate assumption, discount rate (as a percent)
The discount rate assumption of estimated future principal prepayment rate assumption used in the discounted cash flow model for investments classified within level 3 of the fair value hierarchy.
Fair Value Measurements, Discounted Cash Flow Model Assumptions Default Rates for First Year, Low End of Range
Default rate assumptions for the first year, low end of range (as a percent)
The low end of range of default rates assumption for the first year used in the discounted cash flow model for investments classified within level 3 of the fair value hierarchy.
Fair Value Measurements, Discounted Cash Flow Model Assumptions Default Rates for First Year, High End of Range
Default rate assumptions for the first year, high end of range (as a percent)
The high end of range of default rates assumption for the first year used in the discounted cash flow model for investments classified within level 3 of the fair value hierarchy.
Fair Value Measurements, Discounted Cash Flow Model Assumptions Default Rates, Thereafter
Default rate assumptions, thereafter (as a percent)
Default rates assumption for the remaining years used in the discounted cash flow model for investments classified within level 3 of the fair value hierarchy.
Estimated future principal prepayment rate assumption (as a percent)
Fair Value Measurements, Discounted Cash Flow Model Assumptions Loss Severity Rates for First Year
Loss severity rate assumptions, first year (as a percent)
Loss severity rates assumption for the first year used in the discounted cash flow model for investments classified within level 3 of the fair value hierarchy.
Fair Value Measurements, Discounted Cash Flow Model Assumptions Decline in Loss Severity Rates for Following Three Years
Decrease in loss severity rates, following three years (as a percent)
The decline in the loss severity rate assumptions for the following three years used in the discounted cash flow model for investments classified within level 3 of the fair value hierarchy.
Fair Value Measurements, Discounted Cash Flow Model Assumptions Loss Severity Rates, Thereafter
Loss severity rate, thereafter (as a percent)
Loss severity rates assumption for the remaining years used in the discounted cash flow model for investments classified within level 3 of the fair value hierarchy.
Specific Valuation Allowance, Impaired Financing Receivable, Fair Value Disclosure
Specific valuation allowance, impaired loans
The estimated fair value of the recorded investment related to specific valuation allowance of impaired financing receivables measured at fair value.
Specific Valuation Allowance, Other Real Estate and Foreclosed Assets in Use
Specific valuation allowance, other real estate owned
Carrying amount as of the balance sheet date of specified valuation allowance of other real estate and foreclosed assets. Other real estate may include real estate investments, real estate loans that qualify as investments in real estate. Foreclosed assets include all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings.
Change in Provision of Impaired Financing Receivable, Fair Value Disclosure
Change in provision, impaired loans
The estimated fair value of recorded investment related to change in provision for impaired financing receivables measured at fair value.
Change in Provision of Other Real Estate and Foreclosed Assets in Use
Change in provision, other real estate owned
Carrying amount as of the balance sheet date of change in Provision of other real estate and foreclosed assets. Other real estate may include real estate investments, real estate loans that qualify as investments in real estate. Foreclosed assets include all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings.
Allowance for Loan Lease Losses Write Offs Prior to Foreclosure
Write downs in fair value in connection with other real estate owned
Reflects the amount of charge-off related to a loan prior to foreclosure.
Fair Value, Measurements, Discounted Cash Flow Model Assumptions Default Rates for First Year
Default rate assumptions for the first year (as a percent)
Defaults rates assumption for the first year used in the discounted cash flow model for investments classified within level 3 of the fair value hierarchy.
Fair Value Measurements Discounted Cash Flow Model Assumptions Decline in Loss Severity Rates for Following Fifth Year
Decrease in loss severity rates, following five years (as a percent)
The decline in the loss severity rate assumptions for the following five years used in the discounted cash flow model for investments classified within level 3 of the fair value hierarchy.
Fair Value, Measurements Discounted Cash Flow Model Assumptions Default Rates
Default rate assumptions (as a percent)
Default rate assumption used in the discounted cash flow model for investments classified within level 3 of the fair value hierarchy.
Finite-Lived Intangible Assets, Accumulated Amortization
Accumulated Amortization
Fair Value Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Gain (Loss) [Abstract]
Total unrealized losses included in:
Time Deposits Fair Value, Disclosure
Estimated fair value of time deposits
Represents the portion of time deposits valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Time deposits include certificates of deposits, individual retirement accounts and open accounts.
Accumulated Other Comprehensive Income (Loss), Net of Tax
Accumulated other comprehensive income (including $(7,498) and $(6,889) of comprehensive loss related to other-than- temporary impairment for non-credit related issues)
Loans Receivable with Fixed Rate of Interest
Carrying amount of fixed rate performing loans
Reflects carrying amount of loans charging borrowers fixed rates of interest.
Loans Receivable with Fixed Rate of Interest Fair Value, Disclosure
Represents the portion of fixed rate performing loans valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Fixed rate loan represents loans charging borrowers fixed rates of interest.
Estimated fair value of fixed rate performing loans
Securities Sold under Long Term Agreements to Repurchase
Carrying amount of long-term repurchase agreements
The carrying value as of the balance sheet date of securities that an institution sells and agrees to repurchase under a long term agreement (the identical or substantially the same securities) as a seller-borrower at a specified date for a specified price, also known as a repurchase agreement.
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Less: accumulated depreciation
Junior Subordinated Debenture with Fixed Rates of Interest Owed to Unconsolidated Subsidiary Trust
The carrying value of junior subordinated long-term debt with fixed rates of interest owed to unconsolidated subsidiary trusts as of the balance sheet date. Such debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.
Carrying amount of fixed junior subordinated deferrable interest debentures
Federal Home Loan Bank Advances, Long Term Fair Value, Disclosure
Estimated fair value of long-term FHLB borrowings
Represents the aggregate of long-term FHLB borrowings reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with fair value disclosures required in footnote disclosures to financial statements. Such borrowings are initially due beyond one year or beyond the normal operating cycle, if longer.
Entity Well-known Seasoned Issuer
Receivables from Domestic Operations [Member]
Class of financing receivables related to the entity's country of domicile.
Domestic
Entity Voluntary Filers
Allowance for Loan and Lease Losses, Write Offs Net
Net losses charged to allowance
Reflects the amount of loans and leases that have been removed, or charged off, from both loan receivables and the reserve for credit losses, net of collections of loans and lease receivables which had previously been fully or partially charged off as bad debts.
Net losses charged to allowance
Entity Current Reporting Status
Reflects an add back to the net allowance balance for loans and lease receivables for recoveries on previously charged off loan receivables.
Recoveries credited to allowance
Allowance for Loans and Leases Losses, Recoveries of Bad Debts
Entity Filer Category
Risks Related to Family Development Loans [Abstract]
Risks related to family development loans
Reflects the risks specifically related to family development loans.
Entity Public Float
Minimum Number of Family Development Loans
Minimum number of family development loans
Reflects the minimum number of family development loans that include restrictive underwriting standards that inhibit the buys from obtaining long term financing and excessive housing and lot inventory in the market.
Entity Registrant Name
Maximum Number of Family Development Loans
Maximum number of family development loans
Reflects the maximum number of family development loans that include restrictive underwriting standards that inhibit the buys from obtaining long term financing and excessive housing and lot inventory in the market.
Entity Central Index Key
Loans individually evaluated for impairment, Allowance
Financing Receivable Allowance for Credit Losses, Individually Evaluated for Impairments
The valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.
Financing Receivable Recorded Investment Nonaccrual Status Reduction in Interest Income
Reduced interest income on non-accrual loans
Represents the reduction in interest income on recorded investment in financing receivables that are on nonaccrual status.
Impaired Financing Receivable Allowance Type [Domain]
Impaired financing receivables classified based on allowance determination as either with no specific allowance or with related allowance.
Period of Charge Off for Past Due Unsecured Commercial Loans
Period of charge off for past due unsecured commercial loans (in days)
Represents the period of charge off for past due unsecured commercial loans.
Payments to Acquire Businesses and Interest in Affiliates
Contributions to subsidiaries
Entity Common Stock, Shares Outstanding
Share Based Compensation Arrangement by Share Based Payment Award, Increase in Number of Shares Authorized
Represents the increase in the number of authorized shares of the award plan approved by the company's stockholders.
Increase in the Number of Authorized Shares
Share Based Compensation Arrangement by Share Based Payment Award, Options Reductions from Outstanding [Abstract]
Less:
Share Based Compensation Arrangement by Share Based Payment Award, Options Reductions from Outstanding Weighted Average Exercise Price [Abstract]
Less:
Share Based Compensation Arrangement by Share Based Payment Award, Options Weighted Average Remaining Contractual Term Disclosures [Abstract]
Stock options, weighted average remaining contractual term (in years)
Share Based Compensation Arrangement by Share Based Payment Award, Options Aggregate Intrinsic Value Disclosures [Abstract]
Stock options, aggregate intrinsic value
Share Based Compensation Arrangement by Share Based Payment Award, Options, Nonvested [Roll Forward]
Non-vested Options
Share Based Compensation Arrangement by Share Based Payment Award, Options, Nonvested Number
Non-vested options at the beginning of the period (in shares)
The number of non-vested options that validly exist and are outstanding as of the balance sheet date.
Non-vested options at the end of the period (in shares)
Share Based Compensation Arrangement by Share Based Payment Award, Options, Vested in Period
Vested (in shares)
The number of options that vested during the reporting period.
Share Based Compensation Arrangement by Share Based Payment Award, Options, Nonvested Forfeited in Period
Forfeited (in shares)
The number of non-vested options that were forfeited during the reporting period.
Share Based Compensation Arrangement by Share Based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted average grant-date fair value, non-vested options
Share Based Compensation Arrangement by Share Based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value
Non-vested options at the beginning of the period (in dollars per share)
The weighted average grant-date fair value of non-vested options that are outstanding as of the balance-sheet date, under stock option plans.
Non-vested options at the end of the period (in dollars per share)
Share Based Compensation Arrangement by Share Based Payment Award, Options, Vested in Period, Weighted Average Grant Date Fair Value
Vested (in dollars per share)
The weighted average fair value as of the options that vested during the reporting period.
Share Based Compensation Arrangement by Share Based Payment Award, Options, Nonvested, Forfeited in Period, Weighted Average Grant Date Fair Value
Forfeited (in dollars per share)
The weighted average grant-date fair value of non-vested options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.
Share Based Compensation Arrangement by Share Based Payment Award, Options, Additional Information [Abstract]
Other information pertaining to option activity
Share Based Compensation Arrangement by Share Based Payment Award, Options, Vested in Period, Fair Value
Total fair value of stock options vested
The total fair value of options that vested during the reporting period.
Share Based Compensation Arrangement by Share Based Payment Award, Option Type [Domain]
Stock option compensation types.
Held To Maturity Securities [Abstract]
Held-to-maturity securities
Document Fiscal Year Focus
Available For Sale Securities Pledged as Collateral Amortized Cost
Amortized cost of available for sale investment securities pledged
The amortized cost of available-for-sale securities that serve as collateral to partially or fully secure a debt obligation, repurchase agreement or other current or potential obligation, and for which the transferee does not have the right by contract or custom to sell or re-pledge them to an unrelated party.
Document Fiscal Period Focus
Other than Temporary Impairment Losses Investments, Portion Recognized in Earnings, Net after Tax
Impairment charges on available-for-sale investment securities, after tax
The amount of other than temporary impairment (OTTI) losses on equity securities, OTTI related to credit losses on debt securities, and OTTI losses on debt securities when the entity intends to sell the securities or it is more likely than not that the entity will be required to sell the securities before recovery of its amortized cost basis after taxes. Additionally, this item includes OTTI losses recognized during the period on investments accounted for under the cost method of accounting.
Federal Home Loan Bank Advances Activity for Next Five Years Amortization
The annual amortization amount for Federal Home Loan Bank advances for the next five years. Update label as : Annual amortization of long-term advances for the next five years.
Amortization of long-term advances for the next five years
Period of Amortization of Long Term Advances
This represents the period of amortization of the long-term advances in years.
Period of amortization of long-term advances (in years)
Percentage of Advances from Federal Home Loan Banks Increase (Decrease)
Percentage of decrease in other borrowed funds
Represents the percentage change in other borrowed funds. Borrowed funds primarily consist of short and long term borrowings from the Federal Home Loan Bank.
Schedule of Debt Instruments [Table]
A table or schedule providing information pertaining to short-term and long-term debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation.
Portion of Securities Redeemed
Securities redeemed
Represents the portion of securities redeemed.
Number of Statutory Business Trusts Issuing Preferred Securities
Number of statutory business trusts formed for the purpose of issuing trust preferred securities.
Number of statutory business trusts issuing trust preferred securities
Maximum Number of Consecutive Semi Annual Periods Available for Deferral of Payment of Interest on Trust I
Maximum number of consecutive semi-annual period available for deferral of interest payment
Represents the maximum number of consecutive semi-annual periods available to the entity for deferring the payment of interest on Trust I.
Maximum Number of Consecutive Quarterly Periods Available for Deferral of Payment of Interest
Maximum number of consecutive quarterly period available for deferral of interest payment on Trusts VI, VII, VIII, IX, X, XI and XII
Represents the maximum number of consecutive quarterly periods available to the entity for deferring the payment of interest on Trusts VI, VII, VIII, IX, X, XI and XII.
Maximum Percentage of Capital Securities Issued by Trust Qualifying as Tier One Capital
Percentage of capital securities issued by trust qualifying as Tier I capital, maximum
Represents the maximum percentage of capital securities issued by the trust qualifying as Tier I capital on an aggregate basis.
Capital Securities Issued by Trust, Qualifying as Tier One Capital
Capital securities issued by the trust, qualifying as Tier I capital
Represents capital securities issued by trust that is qualified as Tier I capital as on the reporting date.
Legal Entity [Axis]
Initial Period of Accrual of Interest at Fixed Rate
Initial period of accrual of interest at fixed rate (in years)
Represents the period during which the business trust accrues interest at a fixed rate for debt instrument.
Document Type
Debt Instrument, Description of Variable Rate Basis, after Five Years
The reference rate for the variable rate of the debt instrument after five years.
Interest rate index, reference rate, after five years
Debt Instrument, Basis Spread on Variable Rate, after Five Years
The percentage points added to the reference rate to compute the variable rate on the debt instrument after five years.
Interest rate index, percentage on reference rate, after five years
Dividends Preferred Stock, Future Payment
Senior preferred stock, future payment
The aggregate amount of dividends to be paid on a specified date in the future on the preferred stock.
Preferred Stock, Fair Value, Stand Alone Basis
Series A cumulative perpetual preferred shares, fair value as if issued on a stand-alone basis
The estimated fair value of preferred stock as if issued on a stand-alone basis.
Warrants, Fair Value, Stand Alone Basis
Warrants, fair value as if issued on a stand-alone basis
The estimated fair value of warrants as if issued on a stand-alone basis.
Period of Amortization of Preferred Stock, Discount on Fair Value
Period of amortization of discount on preferred shares (in years)
Period related to the amortization of discount on preferred stock.
Amortization of Preferred Stock, Discount on Fair Value
Amortization of discount on series A cumulative perpetual preferred shares
The amount representing the amortization of discount on preferred stock.
Stock Repurchase Program, Cumulative Shares Repurchased
The cumulative number of shares that have been repurchased under all stock repurchase programs as of a certain date.
Cumulative number of shares repurchased under all stock repurchase programs
Stock Repurchase Program, Cumulative Cost of Shares Repurchased
The cumulative cost of shares that have been repurchased under all stock repurchase programs as of a certain date.
Cumulative cost of shares repurchased under all stock repurchase programs
Preferred Stock Liquidation, Preference Value
Series A cumulative perpetual preferred shares, aggregate liquidation value
The total liquidation value of all preferred stock shares (not per share) that have an involuntary liquidation considerably in excess of the par or stated value of the shares.
Preferred Stock, Dividend Rate Percentage for First Five Years
Senior preferred stock, dividend rate for first five years (as a percent)
The percentage rate used to calculate dividend payments on the preferred stock for the first five years.
Additional Paid in Capital
Surplus
Preferred Stock, Dividend Rate Percentage, Thereafter
Senior preferred stock, dividend rate thereafter (as a percent)
The percentage rate used to calculate dividend payments on the preferred stock after the first five years.
Aggregate Common Stock Investment as Percentage of Senior Preferred Stock, Investment on Exercise of Warrants
Percentage of aggregate common stock investment on exercise of warrant to Senior Preferred Stock investment
The percentage of aggregate common stock investment on the exercise of warrant to the Senior Preferred Stock investment.
Class of Warrant or Right Term
Warrants, term (in years)
Period representing the term of warrant.
Maximum Dividend Income to be Received from Subsidiaries
Dividend payable by subsidiaries, maximum
Represents the maximum amount of dividend the subsidiary banks could pay to the entity.
Maximum Semi Annual Cash Dividend Payable Per Share
Semi annual cash dividend payable, maximum (in dollars per share)
Represents the maximum cash dividend payable during the semi-annual period. The aggregate cash dividends and common stock repurchase during a given semi-annual period must not exceed the originally permitted cash dividend under the TARP Capital Purchase Program.
Number of Periods Following Date of Investment That Entity is Restricted from Redeeming Preferred Stock
Represents the number of periods following the date of investment that the entity is restricted from redeeming preferred stock.
Number of years following the date of investment that the entity is restricted from redeeming preferred stock
Length of Transition Period under Federal Reserve Board Final Rule
Length of transition period under final rule of Federal Reserve Board (in years)
The length of the transition period under final rule of Federal Reserve Board limiting the 25% Tier I capital to trust preferred securities and certain other elements.
Maximum Percentage of Trust, Preferred Securities and Other Capital Elements to Tier One Capital
Percentage of trust preferred securities and certain other capital elements to Tier 1 capital, maximum (as a percent)
Maximum percentage of the aggregate amount of trust preferred securities and certain other capital elements to Tier 1 capital elements, net of goodwill, less any associated deferred tax liability.
Percentage of Trust, Preferred Securities to Tier One Capital of Bank Holding Companies with Significant International Operations, Maximum Limit Expected
Percentage of trust preferred securities to tier 1 capital for bank holding companies with significant international operations, maximum limit expected
For bank holding companies with significant international operations, the expected maximum percentage of trust preferred securities to tier I capital.
Maximum Percentage of Convertible Preferred Securities to Tier One Capital Elements of Bank Holding Companies with Significant International Operations
Percentage of convertible preferred securities to Tier 1 capital elements related to bank holding companies with significant international operations, maximum
Maximum percentage of qualifying mandatory convertible preferred securities to Tier 1 capital elements related to bank holding companies with significant international operations.
Extended Transition Period under Federal Reserve Board, Final Rule
Extended transition period under the final rule of the Federal Reserve Board (in years)
The number of years specified as the extended transition period under the final rule of the Federal Reserve Board.
Minimum Consolidated Assets for Application of Collins Amendment
Consolidated assets required for the application of Collins amendment, minimum
Minimum amounts of consolidated assets required for the application of Collins amendment as per Dodd-Frank Wall Street Reform and Consumer Protection Act.
Notice of Final Partnership Administrative Adjustments [Member]
The issuance of the notice of Final Partnership Administrative Adjustments by Internal Revenue Service against the entity.
Notice of FPAA
Class of Action Lawsuits [Member]
The lawsuits relating to the assessment and collection of overdraft fees on ATM and debit transactions and the entity's policies related to posting order.
Purported class-action lawsuits
Loss Contingency by Geographic Region [Axis]
The loss contingency by geographic region.
Loss Contingency Geographic Region [Domain]
The geographic region related to loss contingencies.
Southern District of Texas [Member]
The geographic location of southern district of Texas.
Southern district of Texas
Southern District of Florida [Member]
The geographic location of southern district of Florida.
Southern district of Florida
Number of Partnerships Notice of FPAA Issued
Number of partnerships, notice of FPAA issued
Number of partnerships entered into by the entity's lead bank subsidiary for lease-financing transactions, for which notice of FPAA was issued by IRS.
Percentage of Ownership in Partnership
Percentage of ownership interest in partnership held by lead bank subsidiary
Percentage of ownership held by lead bank subsidiary in the limited partnership.
Loss Contingency, Payment of Deposits
Deposits made against tax refund litigations
Represents the amount deposited by the entity with respect to litigation against the claim of tax refund.
Number of subsidiary banks
Subsidiary Banks Number
The number of subsidiary banks under a restructuring plan.
Loss Contingency Payment to Former Controlling Shareholders of Loan Financial Corporation
Payment made to former controlling shareholders of LFIN
Represents the payment made to the former controlling shareholders of Loan Financial Corporation in connection with settlement of dispute related to certain tax matters.
Operating Leases, Future Minimum Payments Due Future Minimum Sublease Rentals, Minimum Period
Minimum period for non-cancellable sub-leases (in years)
Represents the minimum period of contractually required future rental payments receivable on non-cancelable sub-leasing arrangements.
Cash Reserve to Satisfy Regulatory Reserve Requirements
Approximate cash maintained to satisfy regulatory reserve requirements
Represents the amount of cash maintained to satisfy regulatory reserve requirements as of the balance sheet date.
Intangible Assets and Goodwill
The aggregate amount of identified intangible assets and goodwill recorded in connection with acquisitions made by the entity, are deducted from the sum of core capital elements while determining capital ratios of the entity.
Identified intangibles and goodwill
Acquisitions
Schedule of Other Borrowed Funds [Table Text Block]
Schedule of other borrowed funds
Tabular disclosure of all borrowed funds not defined anywhere else in the taxonomy. Includes Federal Home Loan Bank borrowings, which are short and long-term fixed borrowings.
Provision and Allowance for Probable Loan Losses
Provision and Allowance for Probable Loan Losses [Policy Text Block]
Disclosure of accounting policy for estimating the provision and allowance for probable loan losses.
Loans [Policy Text Block]
Loans
Disclosure of the entity's accounting policy for loans being reported at the principal balance outstanding.
Other Real Estate Owned [Policy Text Block]
Other Real Estate Owned
Represents the accounting policy disclosure for real estate owned (as defined). Generally, the largest component of real estate owned by lenders is assets taken in settlement of troubled loans through surrender or foreclosure. Real estate investments, real estate loans that qualify as investments in real estate and premises that are no longer used in operations may also be included in real estate owned.
Other Investments [Policy Text Block]
Other Investments
Disclosure of accounting policy related to other investments.
Consolidated Statements of Cash Flows [Policy Text Block]
Consolidated Statements of Cash Flows
Disclosure of the entity's accounting policy related to components of the consolidated statements of cash flows.
Comprehensive Income Policy [Policy Text Block]
Comprehensive Income
Disclosure of accounting policy for comprehensive income.
Reclassifications
Describe reclassification adjustments made, which may include adjustments made to conform prior periods to the current period presentation, adjustments to reclassify discontinued operations, and adjustments to conform to adoption of new accounting principles.
Reclassifications [Policy Text Block]
Impaired Loans [Policy Text Block]
Impaired Loans
Disclosure of the entity's accounting policy for impaired loans.
Non Accrual Loans [Policy Text Block]
Non-Accrual Loans
Disclosure of the entity's accounting policy for nonaccrual loans.
Deferred Tax Assets, Other Real Estate, Owned
Other real estate owned
The tax effect as of the balance sheet date of the amount of the estimated future tax deductions attributable to other real estate owned.
Furniture, equipment and vehicles
Furniture Equipment and Vehicles [Member]
Tangible personal property, nonconsumable in nature, with finite lives used to produce goods and services. Also includes long- lived, depreciable assets, commonly used in offices and stores and long-lived, depreciable assets used primarily for road transportation.
Real estate held for productive use and long-lived structures used in the conduct of business, including land, building, furniture, fixture and equipment.
Land, Building, Furniture Fixture and Equipment [Member]
Land, building, furniture, fixture and equipment
Deposits.
Schedule of Deposits [Table Text Block]
Schedule of deposits
Tabular disclosure of information pertaining to deposits.
Schedule of Deposits and Related Interest Expense [Table Text Block]
Schedule of deposits and related interest expense
Tabular disclosure of information pertaining to deposits and related interest expense.
Schedule of Time Deposits Contractual Maturities [Table Text Block]
Scheduled maturities of time deposits
Tabular disclosure of time deposits, classified with respect to their maturities.
Schedule of Time Deposits with Balances of 100000 or More with Contractual Maturities [Table Text Block]
Scheduled maturities of time deposits in amounts of $100,000 or more
Tabular disclosure of time deposits with balances of 100,000 dollars or more, along with contractual maturities.
Less than $100,000
Time Deposits Less than 100000 [Abstract]
Time Deposits Less than 100000 Domestic
Domestic
The aggregate amount of domestic time deposits (including certificates of deposits, individual retirement accounts and open accounts) that total to less than 100,000 dollars.
Time Deposits Less than 100000 Foreign
The aggregate amount of foreign time deposits (including certificates of deposits, individual retirement accounts and open accounts) that total to less than 100,000 dollars.
Foreign
Domestic
The aggregate interest expense incurred on the following domestic deposits in domestic offices: (1) transaction accounts (NOW, and telephone and preauthorized transfer accounts), (2) money market deposits and (3) savings deposit.
Interest Expense NOW Accounts Money Market Accounts and Savings Deposit Domestic
Foreign
The aggregate interest expense incurred on the following foreign deposits in domestic offices: (1) transaction accounts (NOW, and telephone and preauthorized transfer accounts), (2) money market deposits and (3) savings deposit.
Interest Expense NOW Accounts Money Market Accounts and Savings Deposit Foreign
Interest Expense Time Deposits 100000 or More [Abstract]
$100,000 or more
Interest Expense Time Deposits 100000 or More Domestic
Domestic
Interest expense incurred on domestic time deposits, including certificate of deposits, of 100,000 dollars or more in domestic offices.
Interest Expense Time Deposits 100000 or More Foreign
Foreign
Interest expense incurred on foreign time deposits, including certificate of deposits, of 100,000 dollars or more in domestic offices.
Interest Expense Time Deposits Less than 100000 [Abstract]
Less than $100,000
Interest Expense Time Deposits Less than 100000 Domestic
Domestic
Interest expense incurred on domestic time deposits, including certificate of deposits, less than 100,000 dollars in domestic offices.
Interest Expense Time Deposits Less than 100000 Foreign
Foreign
Interest expense incurred on foreign time deposits, including certificate of deposits, less than 100,000 dollars in domestic offices.
Securities Sold Under Repurchase Agreements
Represents the average amount of securities sold under repurchase agreements during the period.
Average outstanding amount
Securities Sold under Agreements to Repurchase Average Outstanding Amount
Represents the maximum balance outstanding at any month end during the period as of the balance sheet date.
Maximum amount outstanding at any month end
Securities Sold under Agreements to Repurchase Maximum Outstanding Amount at any Month End
International Operations
Schedule of Products or Services [Table]
Schedule of information pertaining to products or services provided by the entity.
International Banking Services [Member]
International banking services
Represents the international banking services provided by the entity to its customers.
International Operation Services [Line Items]
Summary of International Operations
Schedule of Accounts Notes Loans and Financing Receivables [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. Presentation is categorized by current, noncurrent and unclassified receivables.
Summary of assets attributable to international operations
Deferred Compensation Arrangements with Individual Requisite Service Period
Minimum number of continuous employment (in years)
The minimum period of continuous employment that the full-time employees are required to perform in order to be participate in the deferred profit sharing plan.
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation Elements [Abstract]
Change in taxes resulting from:
Income Tax Reconciliation, Nondeductible Expense Litigation
Litigation expense
The portion of the difference between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to nondeductible litigation expense under enacted tax laws.
Income Tax Reconciliation, Noninterest Income Other
Other investment income
The portion of the difference between total income tax expense or benefit as reported in the Income Statement for the current period and the expected income tax expense or benefit computed attributable to other investment income.
Share Based Compensation Arrangement by Share Based Payment, Minimum Number of Non Employee Board Members to Authorize RSUs
Minimum number of non-employee members of the Board needed to authorize restricted stock units
The minimum number of non-employee members of the Board authorized to issue restricted stock units. The members are appointed by the Board each of whom is both a non-employee director and an outside director.
Share Based Compensation Arrangement by Share Based Payment Award, Percentage of RSU to Total Compensation Limit
Restricted stock compensation limit as a percentage to the total annual compensation of the President
Represents the limit of the restricted stock unit compensation as a percentage to the total annual compensation of the award.
Plan Name [Axis]
Information by plan name pertaining to equity-based compensation arrangements.
Plan Name [Domain]
Name of the equity-based compensation arrangement plan.
International Bancshares Corporation, Long Term Restricted Stock Unit Plan 2009 [Member]
2009 International Bancshares Corporation Long-Term Restricted Stock Unit Plan
Represents the details pertaining to 2009 International Bancshares Corporation Long-Term Restricted Stock Unit Plan adopted by board of directors.
Award Type [Axis]
Information by award type pertaining to equity-based compensation..
CPP Status [Axis]
Reflects compliance with the rules related to the Troubled Asset Relief Program Capital Purchase Program.
CPP Status [Domain]
Information related to the status of the compliance to the rules related to the Troubled Asset Relief Program Capital Purchase Program.
CPP Compliant Long Term RSU [Member]
CPP-compliant long-term RSUs
Represents details pertaining to CPP-compliant long-term RSUs.
CPP Non Compliant Long Term RSU [Member]
Represents details pertaining to CPP non-compliant long-term RSUs.
CPP Non-compliant long-term RSUs
Financial Instruments with Off Statement of Condition Risk and Concentrations of Credit Risk
Commercial letters of credit
Commercial Letters of Credit [Member]
Represents commercial letters of credit.
Unsecured Letters of Credit [Member]
Represents unsecured letters of credit.
Unsecured letters of credit
Credit Risk Commitments Expiration Date
Credit risk commitment, maximum expiration date (in years)
Represents the maximum fixed expiration date upon which commitments are set to expire.
International Bancshares Corporation (Parent Company Only) Financial Information Statements of Condition
Condensed Statements of Condition of Parent Company Only [Table Text Block]
Schedule of condensed statements of condition of Parent Company
Tabular disclosure of condensed statements of condition of the registrant (parent company) as of the same dates or for the same periods for which audited consolidated financial statements are being presented. Alternatively, the details of this disclosure can be reported by the specific parent company taxonomy elements, indicating the appropriate date and period contexts in an instance document.
Investment in subsidiaries
Investment in Subsidiaries
Represents the investments in wholly-owned subsidiaries of the reporting entity. This balance is eliminated in consolidation.
Advances from Federal Home Loan Banks
Other borrowed funds
Due to IBC Trading
Intercompany Payables
Represents the intercompany payables owed to a wholly-owned subsidiary of the reporting entity. This balance is eliminated in consolidation.
International Bancshares Corporation (Parent Company Only) Financial Information Statements of Income
Condensed Statements of Income of Parent Company Only [Table Text Block]
Schedule of condensed statements of income of Parent Company
Tabular disclosure of condensed statements of income of the registrant (parent company) as of the same dates or for the same periods for which audited consolidated financial statements are being presented. Alternatively, the details of this disclosure can be reported by the specific parent company taxonomy elements, indicating the appropriate date and period contexts in an instance document.
Advertising Expense
Advertising
Income:
Income [Abstract]
Interest Income Notes Receivable
Interest income on notes receivable
Represents the details pertaining to interest income on notes receivable.
Total Income
Total income
Represents the total income generated from banking operations.
Dividends from subsidiaries
Dividend Income from Subsidiaries
Represents the dividend income received from wholly-owned subsidiaries. This amount is eliminated in consolidation.
Expenses [Abstract]
Expenses:
Total Expenses
Total expenses
Represents the total expense incurred from banking operations.
Income (Loss) from Continuing Operations after Income Taxes and before Minority Interest, Income (Loss) from Equity Method Investments
Income before equity in undistributed net income of subsidiaries
Sum of operating profit and nonoperating income or expense before income or loss from equity method investments and noncontrolling interest but after income taxes, extraordinary items.
Advertising Costs, Policy [Policy Text Block]
Advertising
Income (Loss) from Investments in Subsidiaries
Equity in undistributed net income of subsidiaries
Represents the income or loss from wholly-owned subsidiaries. This amount is eliminated in consolidation.
International Bancshares Corporation (Parent Company Only) Financial Information Statements of Cash Flows
Condensed Statements of Cash Flows Parent Company Only [Table Text Block]
Schedule of condensed statements of cash flows of Parent Company
Tabular disclosure of condensed statements of cash flows of the registrant (parent company) as of the same dates or for the same periods for which audited consolidated financial statements are being presented. Alternatively, the details of this disclosure can be reported by the specific parent company taxonomy elements, indicating the appropriate date and period contexts in an instance document.
Equity in undistributed net income of subsidiaries
Income (Loss) from Investments in Subsidiaries Cash Flow as Adjusted
Represents the income or loss from wholly-owned subsidiaries as adjusted in the Statement of Cash Flows. This item is eliminated at consolidation.
Increase (Decrease) in Other Assets
Increase in other assets
The net cash inflow or outflow for the increase (decrease) associated with other assets not separately disclosed in the statement of cash flows that are classified as investing activities.
Other Comprehensive Income Unrealized Holding Gain (Loss) on Securities Arising During, Net of Reclassification Adjustment
Net change in unrealized gains and losses on available for sale securities, net of reclassification adjustments
This element represents the net change in unrealized gains and losses on available for sale securities, net of reclassification adjustment.
International Bank of Commerce Laredo [Member]
International Bank of Commerce, Laredo
Details pertaining to International Bank of Commerce, Laredo.
International Bank of Commerce Brownsville [Member]
International Bank of Commerce, Brownsville
Details pertaining to International Bank of Commerce, Brownsville.
International Bank of Commerce Zapata [Member]
International Bank of Commerce, Zapata
Details pertaining to International Bank of Commerce, Zapata.
Commerce Bank [Member]
Commerce Bank
Details pertaining to Commerce Bank.
International Operations
International Operations Disclosure [Text Block]
Disclosure of the international banking services of the entity based on the domicile of the customer.
Financial Instruments with Off-Statement of Condition Risk and Concentrations of Credit Risk
Fair Value, Off Balance Sheet Risks and Concentration of Risk [Text Block]
The combined disclosure of off-statement of condition risks and concentrations of credit risk. The off-statement of condition disclosure includes information regarding the fair value of financial instruments (as defined), which are not recognized as liabilities in the statement of condition (off-statement of condition) because they fail to meet some criterion for recognition. The concentrations of credit risk disclosure includes disclosure of all significant concentrations of risk, including credit risk and market risk, arising from all financial instruments (as defined), whether from an individual counterparty or groups of counterparties.
International Bancshares Corporation (Parent Company Only) Financial Information Statements of Condition
Condensed Financial Information of Condition Parent Company Only Disclosure [Text Block]
This element can be used to encapsulate the condensed financial information of cash flows disclosure of the registrant (parent company) as of the same dates or for the same periods for which audited consolidated financial statements are being presented. Alternatively, the details of this disclosure can be reported by the specific parent company taxonomy elements, indicating the appropriate date and period contexts in an instance document.
International Bancshares Corporation (Parent Company Only) Financial Information Statements of Income
Condensed Financial Information of Income Parent Company Only Disclosure [Text Block]
This element can be used to encapsulate the condensed financial information of statement of Income disclosure of the registrant (parent company) as of the same dates or for the same periods for which audited consolidated financial statements are being presented. Alternatively, the details of this disclosure can be reported by the specific parent company taxonomy elements, indicating the appropriate date and period contexts in an instance document.
International Bancshares Corporation (Parent Company Only) Financial Information Statements of Cash Flows
Condensed Financial Information of Cash Flow Parent Company Only Disclosure [Text Block]
This element can be used to encapsulate the condensed financial information of Balance sheet disclosure of the registrant (parent company) as of the same dates or for the same periods for which audited consolidated financial statements are being presented. Alternatively, the details of this disclosure can be reported by the specific parent company taxonomy elements, indicating the appropriate date and period contexts in an instance document.
Long Term Restricted Stock Units.
Long Term Restricted Stock Units Disclosure [Text Block]
Long Term Restricted Stock Units
The entire disclosure for long term restricted stock units.
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for probable loan losses
Allowance for Loan and Lease Losses, Provision for Loss, Gross
(Credit) provision charged to operations
Allowance for Loan and Lease Losses, Provision for Loss, Net
Charges to allowance for probable loan losses in connection with other real estate owned
Allowance for Loan and Lease Losses, Write-offs
Losses charged to allowance
Amortization of Intangible Assets
Amortization of identified intangible assets
Amortization expense
Consolidated Statements of Condition
Assets Sold under Agreements to Repurchase, Interest Rate
Repurchase Borrowing, Weighted Average Interest Rate (as a percent)
Assets Sold under Agreements to Repurchase, Carrying Amounts
Collateralized Securities, Book Value of Securities Sold
Assets Sold under Agreements to Repurchase [Line Items]
Collateral Securities and Repurchase Borrowing agreements
Assets Sold under Agreements to Repurchase, Market Value
Collateralized securities, Fair Value of Securities Sold
Schedule of Assets Sold under Agreements to Repurchase [Table]
Available-for-sale Securities, Gross Realized Gains
Gross gains realized on sales
Available-for-sale Securities, Gross Realized Losses
Gross losses realized on sales
Time Deposits, at Carrying Value
Time deposits with banks
Earnings Per Share, Basic
Net income (in dollars per share)
Amortization of Debt Discount (Premium)
Amortization of junior subordinated debenture discounts
Accretion of junior subordinated interest deferrable debentures
Bond
Bonds [Member]
Cash Acquired from Acquisition
Cash acquired in purchase transaction
Cash and Cash Equivalents, at Carrying Value
Cash and cash equivalents at beginning of period
Cash and cash equivalents at end of period
Cash and Due from Banks
Cash and due from banks
Interest Paid
Interest paid
Payments to Acquire Businesses, Gross
Cash paid in purchase transaction
Increase (Decrease) in Accrued Interest Receivable, Net
Decrease in accrued interest receivable
Increase (Decrease) in Notes Receivables
Net (increase) decrease in notes receivable
Compensation Related Costs, General [Text Block]
Employees' Profit Sharing Plan
Commitments and Contingencies Disclosure [Text Block]
Commitments and Contingent Liabilities and Other Tax Matters
Commitments to Extend Credit [Member]
Commitments to extend credit
Common Stock, Shares Authorized
Common shares, Authorized shares
Common Stock, Shares, Issued
Common shares, issued shares
Common Stock, Value, Issued
Common shares of $1.00 par value. Authorized 275,000,000 shares; issued 95,722,817, shares on June 30, 2012 and 95,719,652 shares on December 31, 2011
Common shares
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Deferred
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Comprehensive income
Consumer Loan [Member]
Consumer
Contractual Maturities, Time Deposits, $100,000 or More [Abstract]
Scheduled maturities of time deposits in amounts of $100,000 or more
Contractual Rights [Member]
Identified intangible (contract rights)
Core Deposits [Member]
Core deposit premium
Current Federal Tax Expense (Benefit)
U.S.
Current Foreign Tax Expense (Benefit)
Foreign
Current Income Tax Expense (Benefit)
Total current taxes
Current State and Local Tax Expense (Benefit)
State
Debt Instrument, Interest Rate During Period
Interest rate (as a percent)
Debt Instrument, Interest Rate, Stated Percentage
Interest rate (as a percent)
Debt Instrument, Interest Rate Terms
Interest rate index
Debt Instrument, Name [Domain]
Debt Instrument [Axis]
Junior subordinated deferrable interest debentures, major types of business trusts
Debt Instrument [Line Items]
Other Borrowed Funds
Schedule of Long-term Debt Instruments [Table]
Deferred Compensation Arrangement with Individual, Compensation Expense
Profit sharing costs
U.S.
Deferred Federal Income Tax Expense (Benefit)
Deferred Income Tax Expense (Benefit)
Deferred tax expense (benefit)
Total deferred taxes
Deferred State and Local Income Tax Expense (Benefit)
State
Deferred Tax Assets, Gross
Total deferred tax assets
Deferred Tax Assets (Liabilities), Net
Net deferred tax liability
Deferred Tax Assets, Other
Other
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities
Accrued expenses
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Impairment Losses
Impairment charges on available-for-sale securities
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Provision for Loan Losses
Loans receivable, principally due to the allowance for probable loan losses
Deferred Tax Liabilities [Abstract]
Deferred tax liabilities:
Deferred Tax Liabilities, Goodwill and Intangible Assets
Identified intangible assets and goodwill
Deferred Tax Liabilities
Total deferred tax liabilities
Deferred Tax Liabilities, Leasing Arrangements
Lease financing receivable
Deferred Tax Liabilities, Other
Other
Deferred Tax Liabilities, Other Comprehensive Income
Net unrealized gains on available for sale investment securities
Deposit Liabilities Disclosures [Text Block]
Deposits
Deposits
Total deposits
Deposits [Abstract]
Deposits:
Deposits
Time Deposits, $100,000 or More, Domestic
Domestic
Interest-bearing Deposit Liabilities
Savings and interest bearing demand
Interest-bearing Deposit Liabilities [Abstract]
Savings and interest bearing demand
Noninterest-bearing Deposit Liabilities
Demand - non-interest bearing
Noninterest-bearing Deposit Liabilities [Abstract]
Demand non-interest bearing
Time Deposits [Abstract]
Time, certificates of deposit
Time Deposits, $100,000 or More, Foreign
Foreign
Regulatory Capital Requirements under Banking Regulations [Text Block]
Capital Ratios
Earnings Per Share, Diluted
Net income (in dollars per share)
Repurchase Agreements, Resale Agreements, Securities Borrowed, and Securities Loaned Disclosure [Text Block]
Securities Sold Under Repurchase Agreements
Consolidation, Policy [Policy Text Block]
Consolidation and Basis of Presentation
Payments of Ordinary Dividends
Payments of cash dividends
Dividends declared, not yet paid
Dividends Payable, Amount
Originally permitted semi-annual cash dividend (in dollars per share)
Dividends Payable, Amount Per Share
Income (Loss) from Equity Method Investments
Earnings from affiliates and other investments
Equity in undistributed net income of subsidiaries
Equity in undistributed net income of subsidiaries
Company's effective tax rate (as a percent)
Effective Income Tax Rate, Continuing Operations
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate
Income tax expense differences from the amount computed by applying the U.S. Federal income tax rate to income before income taxes (as a percent)
Allocated Share-based Compensation Expense
Stock-based compensation expense
Share-based Compensation
Stock based compensation expense
Stock compensation expense
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost
Compensation cost
Equity Securities [Member]
Equity Securities
Other
Adjustment
Restatement Adjustment [Member]
Federal Funds Purchased and Securities Sold under Agreements to Repurchase [Abstract]
Securities Sold Under Repurchase Agreements
Federal Funds Sold
Federal funds sold
Federal Home Loan Bank, Advances, Activity for Year, Average Balance of Agreements Outstanding
Average daily balance
Federal Home Loan Bank, Advances, Activity for Year, Average Interest Rate for Year
Average rate (as a percent)
Federal Home Loan Bank, Advances, Activity for Year, Average Interest Rate at Period End
Rate on balance outstanding at year end (as a percent)
Federal Home Loan Bank, Advances, Activity for Year, Maximum Outstanding at any Month End
Maximum amount outstanding at any month end
Federal Home Loan Bank Advances, Disclosure [Text Block]
Other Borrowed Funds
Long-term Federal Home Loan Bank Advances
Carrying amount of the long-term FHLB borrowings
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets [Line Items]
Identified intangible assets
Schedule of Finite-Lived Intangible Assets by Major Class [Table]
Finite-Lived Intangible Assets, Future Amortization Expense
Total
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
Estimated amortization expense for each of the five succeeding fiscal years and thereafter
Loans and Leases Receivable, Gross, Foreign, Commercial
Commercial
Loans and Leases Receivable, Gross, Foreign, Commercial and Consumer, Other
Others
Future Amortization Expense, Year Five
2016
Future Amortization Expense, Year Four
2015
Future Amortization Expense, Year One
2012
Future Amortization Expense, Year Three
2014
Future Amortization Expense, Year Two
2013
Gain (Loss) on Sale of Property Plant Equipment
Gain on sale of bank premises and equipment
Goodwill and Intangible Assets, Policy [Policy Text Block]
Goodwill and Identified Intangible Assets
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]
Impairment of Long-Lived Assets
Consolidated Statements of Income
Income Tax Disclosure [Text Block]
Income Taxes
Income Tax, Policy [Policy Text Block]
Income Taxes
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Reasons for the difference of income tax expense
Income Tax Reconciliation, Deductions
Tax refunds
Income Tax Reconciliation, Income Tax Expense (Benefit), at Federal Statutory Income Tax Rate
Computed expected tax expense
Income Tax Reconciliation, Other Adjustments
Other
Income Tax Reconciliation, State and Local Income Taxes
State tax, net of federal income taxes and tax credit
Income Tax Reconciliation, Tax Exempt Income
Tax-exempt interest income
Increase (Decrease) in Other Operating Assets
Net (increase) decrease in other assets
Intangible Assets, Net (Excluding Goodwill)
Identified intangible assets, net
Total identified intangibles, Net
Finite-Lived Intangible Assets, Gross
Carrying Amount
Goodwill
Goodwill, net
Interest-bearing Deposit Liabilities, Domestic
Domestic
Interest-bearing Deposit Liabilities, Foreign
Foreign
Interest Expense
Total interest expense
Interest Expense [Abstract]
Interest expense:
Interest Expense, Time Deposits
Time deposits
Interest Expense, Time Deposits [Abstract]
Time, certificates of deposit
Interest Expense, Deposits
Total interest expense on deposits
Interest Expense, Securities Sold under Agreements to Repurchase
Securities sold under repurchase agreements
Interest Expense, NOW Accounts, Money Market Accounts, and Savings Deposits
Savings deposits
Interest Expense, NOW Accounts, Money Market Accounts, and Savings Deposits [Abstract]
Savings and interest bearing demand
Interest Expense, Other
Other interest expense
Interest Income (Expense), after Provision for Loan Loss
Net interest income after provision (credit) for probable loan losses
Interest Income, Federal Funds Sold
Federal funds sold
Interest Income, Securities, Tax Exempt
Tax-exempt
Interest Income, Securities, Taxable
Taxable
Interest and Fee Income, Loans, Foreign
Revenues
Other Interest and Dividend Income
Other interest income
Interest and Dividend Income, Securities, by Taxable Status [Abstract]
Investment securities:
Interest Receivable
Accrued interest receivable
Investment Income, Net
Interest income on other investments
Investment, Policy [Policy Text Block]
Investment Securities
Investments [Abstract]
Investment Securities
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]
Investment Securities
Labor and Related Expense
Employee compensation and benefits
Land [Member]
Land
Liabilities
Total liabilities
Liabilities [Abstract]
Liabilities:
Liabilities and Equity
Total liabilities and shareholders' equity
Liabilities and Equity [Abstract]
Liabilities and Shareholders' Equity
Line of Credit [Member]
Credit card lines
Interest and Fee Income, Loans and Leases
Loans, including fees
Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block]
Allowance for loan loss
Loans and Leases Receivable, Net of Deferred Income
Loans
Portfolio, total
Total loans
Loans and Leases Receivable, Net of Deferred Income [Abstract]
Summary of net loans
Loss Contingencies by Nature of Contingency [Axis]
Loss Contingencies [Line Items]
Commitments and Contingent Liabilities and Other Tax Matters, details
Loss Contingencies [Table]
Loss Contingency, Nature [Domain]
Loss Contingency, Pending Claims, Number
Loss contingency, number of cases pending
Available-for-sale Securities
Available-for-sale (Amortized cost of $5,077,867 on June 30, 2012 and $5,082,095 on December 31, 2011)
Estimated fair value, Available for sale securities
Carrying Value
Total investment securities
Marketable Securities
Marketable Securities [Abstract]
Investment securities:
Held-to-maturity Securities
Held-to-maturity (Market value of $2,425 on June 30, 2012 and $2,450 on December 31, 2011)
Carrying Value
Collateralized Mortgage Backed Securities [Member]
Residential mortgage-backed securities
Net Cash Provided by (Used in) Operating Activities, Continuing Operations
Net cash provided by operating activities
Decrease in cash provided by operating activities due to reclassification adjustment
Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract]
Operating activities:
Proceeds from (Payments for) in Interest-bearing Deposits in Banks
Proceeds from matured time deposits with banks
Increase (Decrease) in Loans Held-for-sale
Decrease in loans held for sale
Payments for (Proceeds from) Loans and Leases
Net decrease in loans
Proceeds from (Payments for) in Securities Sold under Agreements to Repurchase
Net decrease in securities sold under repurchase agreements
Increase (Decrease) in Time Deposits
Net increase (decrease) in time deposits
Net Income (Loss) Attributable to Parent
Net income
Net income
Net Income
Net Income (Loss) Available to Common Stockholders, Basic
Net income available to common shareholders
Net Income (Numerator)
Interest Income (Expense), Net
Net interest income
Loans Receivable, Net [Abstract]
Loans:
Loans and Leases Receivable, Allowance
Less allowance for probable loan losses
Balance at the beginning of the period
Balance at the end of the period
Loans and Leases Receivable, Net Reported Amount
Net loans
Loans and Leases Receivable, Net Reported Amount [Abstract]
Loans
Noninterest-bearing Deposit Liabilities, Domestic
Domestic
Noninterest-bearing Deposit Liabilities, Foreign
Foreign
Federal Deposit Insurance Corporation Premium Expense
Deposit insurance assessments
Occupancy, Net
Occupancy
Other
Other Noninterest Expense
Noninterest Income
Total non-interest income
Noninterest Income [Abstract]
Non-interest income:
Gains (Losses) on Sales of Other Real Estate
Gain on sale of other real estate owned
Gain on investment securities transactions, net
Gain (Loss) on Sale of Securities, Net
Investment securities transactions, net
Fees and Commissions, Other
Non-banking
Noninterest Income, Other
Other investments, net
Noninterest Income, Other Operating Income
Other income
Fees and Commissions, Depositor Accounts
Service charges on deposit accounts
Professional Fees
Professional fees
Notes, Loans and Financing Receivable, Net
Notes receivable
Interest and Dividend Income, Operating
Total interest income
Revenues
Interest and Dividend Income, Operating [Abstract]
Interest income:
Operating Leases, Future Minimum Payments Due
Total
Operating Leases, Future Minimum Payments Due [Abstract]
Future minimum lease payments due under non-cancellable operating leases
2012
Operating Leases, Future Minimum Payments Due, Current
Operating Leases, Future Minimum Payments, Due in Five Years
2016
Operating Leases, Future Minimum Payments, Due in Four Years
2015
Operating Leases, Future Minimum Payments, Due in Three Years
2014
Operating Leases, Future Minimum Payments, Due in Two Years
2013
Operating Leases, Future Minimum Payments, Due Thereafter
Thereafter
Operating Leases, Future Minimum Payments Due, Future Minimum Sublease Rentals
Aggregate future minimum rentals to be received under non-cancellable sub-leases
Other Comprehensive Income (Loss), before Tax
Impairment charges, other comprehensive income
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Tax
Reclassification adjustment for gains on securities available for sale included in net income, tax effects
Reclassification adjustment for impairment charges on available for sale securities included in net income, tax effects
Other Comprehensive Income (Loss), Reclassification Adjustment for Write-down of Securities Included in Net Income, Tax
Net unrealized holding gains on securities available for sale arising during period (tax effects of $4,354, $29,866, $395 and $31,877)
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax
Net unrealized holding gains on securities available for sale arising during period, tax effects
Other Liabilities
Other liabilities
Other Long-term Investments
Other investments
Other Revenue (Expense) from Real Estate Operations
Net expense, other real estate owned
Payments of Dividends, Common Stock
Payments of dividends on common stock
Payments of Dividends, Preferred Stock and Preference Stock
Payments of dividends on preferred stock
Preferred Stock, Shares Authorized
Series A Cumulative perpetual preferred shares, Authorized shares
Preferred Stock, Shares Issued
Series A Cumulative perpetual preferred shares, issued shares
Series A cumulative perpetual preferred shares, issued
Preferred Stock, Par or Stated Value Per Share
Series A Cumulative perpetual preferred shares, par value (in dollars per share)
Proceeds from Issuance or Sale of Equity
Proceeds from stock transactions
Proceeds from Issuance of Long-term Debt
Proceeds from issuance of long-term debt
Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities
Principal collected on mortgage-backed securities
Principal collected on mortgage-backed securities
Proceeds from Maturities, Prepayments and Calls of Other Investments
Proceeds from maturities of held-to-maturity securities
Proceeds from Sale of Available-for-sale Securities
Proceeds from sales and calls of available for sale securities
Proceeds from sales of available for sale securities
Proceeds from Sale of Property, Plant, and Equipment
Proceeds from sale of bank premises and equipment
Proceeds from Sale of Mortgage Backed Securities (MBS) categorized as Available-for-sale
Proceeds from sales of mortgage-backed securities
Proceeds from Sale of Other Real Estate
Proceeds from sales of other real estate owned
Property, Plant and Equipment, Gross
Bank premises and equipment, gross
Property, Plant and Equipment, Net
Bank premises and equipment, net
Bank Premises and Equipment
Property, Plant and Equipment, Policy [Policy Text Block]
Bank Premises and Equipment
Provision for Loan, Lease, and Other Losses
Provision (credit) for probable loan losses
Provision for probable loan losses
Tax Adjustments, Settlements, and Unusual Provisions
Tax adjustment and interest due, expensed
Payments to Acquire Available-for-sale Securities
Purchases of available for sale securities
Payments to Acquire Intangible Assets
Purchase, adjustment of identified intangible asset
Payments to Acquire Other Investments
Purchases of other investments
Payments to Acquire Property, Plant, and Equipment
Purchases of bank premises and equipment
Quantifying Misstatement in Current Year Financial Statements by Nature of Error [Axis]
Cash flow reclassification
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Schedule of Quantifying Prior Year Misstatement Corrected in Current Year Financial Statements [Table]
Nature of Error [Domain]
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]
Loans
Transactions with Related Parties
Related Party Transactions Disclosure [Text Block]
Repayments of Long-term Debt
Repayment of long-term debt
Payments for Repurchase of Common Stock
Purchase of treasury stock
Repayment of trust preferred securities
Payments for Repurchase of Trust Preferred Securities
Residential Mortgage [Member]
Real estate - mortgage
Restructuring and Related Cost, Expected Cost
Estimated combined charges of restructuring plan before tax
Retained Earnings (Accumulated Deficit)
Retained earnings
Schedule of Finite-Lived Intangible Assets by Major Class [Table Text Block]
Schedule of the entity's indentified intangible assets
Property, Plant and Equipment [Table Text Block]
Summary of bank premises and equipment, by asset classification
Schedule of Repurchase Agreements [Table Text Block]
Schedule of repurchase agreements
Securities Pledged as Collateral [Member]
Securities Pledged as Collateral
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized
Stock-based compensation cost, unrecognized, related to non-vested options
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition
Stock-based compensation cost, unrecognized, related to non-vested options, weighted-average period of recognition (in years)
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Date
Maximum exercisable period for options granted
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant
Shares available for future grants
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value
Total intrinsic value of stock options exercised
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
Options exercised, weighted average exercise price (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period
Options expired (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price
Options expired, weighted average exercise price (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period
Options forfeited (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price
Options forfeited, weighted average exercise price (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures
Plus: Options granted (in shares)
Granted (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Plus: Options granted, weighted average exercise price (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value
Weighted average grant date fair value of stock options granted (in dollars per share)
Granted (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value
Options outstanding at the end, aggregate intrinsic value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
Options outstanding at the beginning of the period (in shares)
Options outstanding at the end of the period (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Options outstanding at the beginning, weighted average exercise price (in dollars per share)
Options outstanding at the end, weighted average exercise price (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number
Options fully vested and exercisable at the end of the period (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price
Options fully vested and exercisable at the end, weighted average exercise price (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term
Options fully vested and exercisable at the end, weighted average remaining contractual term (in years)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate
Dividend yield (as a percent)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term
Expected Life (in years)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate
Volatility (as a percent)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate
Interest rate (as a percent)
Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Award Type and Plan Name [Axis]
Share-based Compensation Arrangements by Share-based Payment Award, Award Type and Plan Name [Domain]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option details
Long-Term Restricted Stock Units
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Significant Accounting Policies [Text Block]
Summary of Significant Accounting Policies
Standby Letters of Credit [Member]
Standby letters of credit
Consolidated Statements of Cash Flows
Consolidated Statements of Comprehensive Income
Consolidated Statements of Shareholders' Equity
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]
Stock Options
Shareholders' equity:
Stockholders' Equity Attributable to Parent [Abstract]
Preferred Stock, Common Stock and Dividends
Preferred Stock, Common Stock and Dividends
Stockholders' Equity Note Disclosure [Text Block]
Warrants, exercise price (in dollars per share)
Class of Warrant or Right, Exercise Price of Warrants or Rights
Class of Warrant or Right, Number of Securities Called by Warrants or Rights
Warrants to purchase entity's common stock (in shares)
Junior Subordinated Interest Deferrable Debentures
Junior Subordinated Interest Deferrable Debentures
Subordinated Borrowings Disclosure [Text Block]
Goodwill and Intangible Assets Disclosure [Text Block]
Goodwill and Other Intangible Assets
Supplemental Cash Flow Information [Abstract]
Supplemental cash flow information:
Income Taxes Paid
Income taxes paid
Tier One Leverage Capital
Tier 1 Capital (to Average Assets), Actual Amount
Tier One Leverage Capital Required for Capital Adequacy
Tier 1 Capital (to Average Assets), For Capital Adequacy Purposes Amount
Tier One Leverage Capital Required for Capital Adequacy to Average Assets
Tier 1 Capital (to Average Assets), For Capital Adequacy Purposes Ratio (as a percent)
Tier One Leverage Capital Required to be Well Capitalized
Tier 1 Capital (to Average Assets), To Be Well Capitalized Under Prompt Corrective Action Provisions Amount
Tier One Leverage Capital Required to be Well Capitalized to Average Assets
Tier 1 Capital (to Average Assets), To Be well Capitalized Under Prompt Corrective Action Provisions Ratio (as a percent)
Tier One Leverage Capital to Average Assets
Tier 1 Capital (to Average Assets), Actual Ratio (as a percent)
Tier One Risk Based Capital
Tier 1 Capital (to Risk Weighted Assets), Actual Amount
Tier One Risk Based Capital Required for Capital Adequacy
Tier 1 Capital (to Risk Weighted Assets), For Capital Adequacy Purposes Amount
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets
Tier 1 Capital (to Risk Weighted Assets), For Capital Adequacy Purposes Ratio (as a percent)
Tier One Risk Based Capital Required to be Well Capitalized
Tier 1 Capital (to Risk Weighted Assets), To Be Well Capitalized Under Prompt Corrective Action Provisions Amount
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets
Tier 1 Capital (to Risk Weighted Assets), To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio (as a percent)
Tier One Risk Based Capital to Risk Weighted Assets
Tier 1 Capital (to Risk Weighted Assets), Actual Ratio (as a percent)
Time Deposits, $100,000 or More [Abstract]
$100,000 or more
Time Deposit Maturities, after Year Five
2016
Time Deposit Maturities, Year Four
2015
Time Deposit Maturities, Year One
2012
Time Deposit Maturities, Year Three
2014
Time Deposit Maturities, Year Two
2013
Time Deposits, $100,000 or More
Total
Time Deposits, Noncurrent
Thereafter
Contractual Maturities, Time Deposits, $100,000 or More, after 12 Months
Due after 12 months
Contractual Maturities, Time Deposits, $100,000 or More, Six Months Through 12 Months
Due after 6 months and within 12 months
Contractual Maturities, Time Deposits, $100,000 or More, Three Months or Less
Due within 3 months or less
Contractual Maturities, Time Deposits, $100,000 or More, Three Months Through Six Months
Due after 3 months and within 6 months
Capital
Total Capital (to Risk Weighted Assets), Actual Amount
Capital Required for Capital Adequacy
Total Capital (to Risk Weighted Assets), For Capital Adequacy Purposes Amount
Capital Required to be Well Capitalized
Total Capital (to Risk Weighted Assets), To Be Well Capitalized Under Prompt Corrective Action Provisions Amount
Capital Required to be Well Capitalized to Risk Weighted Assets
Total Capital (to Risk Weighted Assets), To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio (as a percent)
Capital to Risk Weighted Assets
Total Capital (to Risk Weighted Assets), Actual Ratio (as a percent)
Noninterest Expense
Total non-interest expense
Noninterest Expense [Abstract]
Non-interest expense:
Transfers and Servicing of Financial Assets, Policy [Policy Text Block]
Accounting for Transfers and Servicing of Financial Assets
Treasury Stock
Treasury Stock [Member]
US States and Political Subdivisions Debt Securities [Member]
Obligations of states and political subdivisions
States and political subdivisions
US Treasury Securities [Member]
U.S. Treasury securities
Weighted Average Number of Shares Outstanding, Diluted
Weighted average number of shares outstanding: (in shares)
Shares (Denominator)
Weighted Average Number Diluted Shares Outstanding Adjustment
Potential dilutive common shares
Weighted Average Number of Shares Outstanding, Basic
Weighted average number of shares outstanding: (in shares)
Common Stock
Common Stock [Member]
Property, Plant and Equipment Disclosure [Text Block]
Bank Premises and Equipment
Property, Plant and Equipment, Type [Domain]
Property, Plant and Equipment, Useful Life, Maximum
Estimated useful lives, maximum (in years)
Property, Plant and Equipment, Useful Life, Minimum
Estimated useful lives, minimum (in years)
Building and Building Improvements [Member]
Bank buildings and improvements
Cash
Cash
Major Types of Debt and Equity Securities [Domain]
Preferred Stock
Preferred Stock [Member]
Available-for-sale Securities, Amortized Cost Basis
Available-for-sale, Amortized cost (in dollars)
Amortized Cost
Amortized cost, Available for sale securities
Available-for-sale Securities, Debt Maturities, within One Year, Amortized Cost Basis
Due in one year or less, available-for-sale debt securities amortized cost
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Amortized Cost Basis
Due after one year through five years, available-for-sale debt securities amortized cost
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Amortized Cost Basis
Due after five years through ten years, available-for-sale debt securities amortized cost
Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis
Due after ten years, available-for-sale debt securities amortized cost
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Amortized Cost Basis
Residential mortgage-backed securities, amortized cost
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value
Due in one year or less, available-for-sale debt securities, Estimated Fair Value
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value
Due after one year through five years, available-for-sale debt securities, Estimated Fair Value
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value
Due after five years through ten years, available-for-sale debt securities, Estimated Fair Value
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value
Due after ten years, available-for-sale debt securities, Estimated Fair Value
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value
Residential mortgage-backed securities, Estimated Fair Value
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis [Abstract]
Available-for-sale debt securities amortized cost disclosures
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]
Available for sale debt securities, Estimated Fair Value Disclosures
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value
Fair value, less than 12 months
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value
Fair value, 12 months or more
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value
Fair value, total
Available-for-sale Securities [Abstract]
Available-for-sale securities
Available-for-sale Securities, Equity Securities
Equity securities, Estimated Fair Value
Other Debt Obligations [Member]
Other securities
Held-to-maturity Securities, Debt Maturities, Fair Value [Abstract]
Held-to-maturity debt securities, Estimated fair value disclosures
Held-to-maturity Securities, Fair Value
Held-to-maturity, Market value (in dollars)
Estimated Fair Value
Held-to-maturity Securities, Debt Maturities, within One Year, Fair Value
Due in one year or less, held-to-maturity debt securities, Estimated fair value
Held-to-maturity Securities, Debt Maturities, after One Through Five Years, Fair Value
Due after one year through five years, held-to-maturity debt securities, Estimated fair value
Held-to-maturity Securities, Debt Maturities, Fair Value
Estimated fair value, held-to-maturity debt securities
Total assets
Assets
Receivable Type [Domain]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Summary of loans, by loan type
Summary of assets attributable to international operations
Common Stock, Dividends, Per Share, Declared
Cash Dividends (in dollars per share)
Available-for-sale Securities, Debt Maturities [Abstract]
Available-for-sale securities, debt maturities disclosures
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available for sale:
Held-to-maturity Securities, Debt Maturities [Abstract]
Held-to-maturity securities, debt maturities disclosures
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]
Stock Options
Estimate of Fair Value, Fair Value Disclosure [Member]
Assets/Liabilities Measured at Fair Value
Scenario, Unspecified [Domain]
Statement [Table]
Statement, Scenario [Axis]
Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure
Estimated fair value of long-term repurchase agreements
Fair Value, by Balance Sheet Grouping, Significant Assumptions [Abstract]
Assumptions used in discounted cash flow model to determine fair value of investments classified within level 3
Assets [Abstract]
Assets
ASSETS
Statement [Line Items]
Statement
Estimated fair value of fixed junior subordinated deferrable interest debentures
Subordinated Debt Obligations, Fair Value Disclosure
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
Reconciliation of activity for mortgage-backed securities on a net basis
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Assets Measured on Recurring Basis, mortgage-backed securities reconciliation
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value
Balance at the beginning of the period
Balance at the end of the period
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings
Impairment realized in earnings
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)
Other comprehensive income
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Reconciliation of activity for mortgage-backed securities on a net basis
Fair Value, Inputs, Level 1 [Member]
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Inputs, Level 2 [Member]
Significant Other Observable Inputs (Level 2)
Fair Value, Inputs, Level 3 [Member]
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Table Text Block]
Assets measured at fair value on a non-recurring basis
Fair Value Disclosures [Text Block]
Fair Value Measurements
Preferred Stock, Liquidation Preference Per Share
Series A Cumulative perpetual preferred shares, per share liquidation value (in dollars per share)
Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract]
Investing activities:
Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract]
Financing activities:
Net Cash Provided by (Used in) Investing Activities, Continuing Operations
Net cash provided by investing activities
Increase in cash provided by investing activities due to reclassification adjustment
Net Cash Provided by (Used in) Financing Activities, Continuing Operations
Net cash used in financing activities
Time Deposits, by Maturity [Abstract]
Scheduled maturities of time deposits
Long-term Debt [Member]
Federal Home Loan Bank advances long-term
Short-term Debt [Member]
Federal Home Loan Bank advances short-term
Treasury Stock, Value
Less cost of shares in treasury, 28,494,286 shares on June 30, 2012 and 28,441,714 December 31, 2011
Payment for U.S. Treasury
Increase (decrease) in shareholders' equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stockholders' Equity, Period Increase (Decrease)
Depreciation of bank premises and equipment
Depreciation, Nonproduction
Earnings Per Share, Basic [Abstract]
Basic earnings per common share:
Basic EPS
Earnings Per Share, Diluted [Abstract]
Fully diluted earnings per common share:
Diluted EPS
Earnings per Share ("EPS")
Earnings Per Share, Policy [Policy Text Block]
Net Income Per Share
Increase (Decrease) in Other Operating Liabilities
Net increase in other liabilities
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest
Income before income taxes
Schedule of Available-for-sale Securities, Major Types of Debt and Equity Securities [Axis]
Parent Company [Member]
Parent Company
Consolidated
Advances from Federal Home Loan Banks [Abstract]
Other borrowed funds
Federal Home Loan Bank advances
Schedule of Property, Plant and Equipment [Table]
Common Stock, Par or Stated Value Per Share
Common shares, par value (in dollars per share)
Treasury Stock, Shares
Treasury, shares
Payment for U.S. Treasury
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax
Reclassification adjustment for gains on securities available for sale included in net income (tax effects of $(497), $(505), $(907) and $(1,001))
Reclassification adjustment for impairment charges on available for sale securities included in net income (tax effects of $78, $58, $143 and $145)
Other Comprehensive Income (Loss), Reclassification Adjustment for Write-down of Securities Included in Net Income, Net of Tax
Property, Plant and Equipment by Type [Axis]
Property, Plant and Equipment [Line Items]
Bank premises and equipment
Preferred Stock, Discount on Shares
Series A Cumulative perpetual preferred shares, discount (in dollars)
Securities Sold under Agreements to Repurchase
Securities sold under repurchase agreements
Stockholders' Equity Attributable to Parent
Total shareholders' equity
Balance
Balance
Components of Deferred Tax Assets [Abstract]
Deferred tax assets:
Deferred Tax Liabilities, Property, Plant and Equipment
Bank premises and equipment, principally due to differences on depreciation
Income Tax Expense (Benefit)
Provision for income taxes
Available-for-sale Securities Pledged as Collateral
Fair value of available for sale investment securities pledged
Assets Sold under Agreements to Repurchase, Maturity Periods [Axis]
Assets Sold under Agreements to Repurchase, Maturity Period [Domain]
Maturity Overnight [Member]
Overnight agreements
Maturity 30 to 90 Days [Member]
30 to 90 days
Maturity over 90 days [Member]
Over 90 days
Maturity up to 30 days [Member]
1 to 29 days
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]
Held-to-maturity debt securities amortized cost disclosures
Held-to-maturity Securities, Debt Maturities, within One Year, Net Carrying Amount
Due in one year or less, held-to-maturity debt securities amortized cost
Held-to-maturity Securities, Debt Maturities, after One Through Five Years, Net Carrying Amount
Due after one year through five years, held-to-maturity debt securities amortized cost
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount
Amortized cost, held-to-maturity debt securities
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]
Schedule of the Company's and the bank subsidiaries' actual capital amounts and ratios
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital Requirements
Series A Cumulative perpetual preferred shares, $.01 par value, $1,000 per share liquidation value. Authorized 25,000,000 shares; issued 216,000 shares on June 30, 2012, net of discount of $4,154, and issued 216,000 shares on December 31, 2011, net of discount of $5,452
Preferred Stock, Value, Issued
Series A cumulative perpetual preferred shares, value
Common Stock, Dividends, Per Share, Cash Paid
Cash dividends paid to common shareholders (in dollars per share)
Other Expenses
Other
U.S. Government agency obligations
US Government Agencies Debt Securities [Member]
Schedule of Fair Value, Off-balance Sheet Risks [Table Text Block]
Schedule of financial amounts of instruments, whose contract amounts represent credit risks
Fair Value, Off-balance Sheet Risks, Financial Instruments [Domain]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Financial amounts of instruments, whose contract amounts represent credit risks
Schedule of Fair Value, Off-balance Sheet Risks [Table]
Fair Value, Off-balance Sheet Risks by Financial Instrument [Axis]
Total time, certificates of deposit
Time Deposits
Time
Carrying amount of time deposits
Other Income
Other
Statement, Equity Components [Axis]
Surplus
Additional Paid-in Capital [Member]
Retained Earnings
Retained Earnings [Member]
Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss) [Member]
Equity Component [Domain]
Schedule of Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits, by Title of Individual and by Type of Deferred Compensation [Table]
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Employees' profit sharing plan
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits, by Type of Deferred Compensation [Axis]
Type of Deferred Compensation [Domain]
Deferred Profit Sharing [Member]
Deferred profit sharing plan
Employee Stock Option [Member]
2012 Plan Stock Options
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust
Junior subordinated deferrable interest debentures
Other Real Estate and Foreclosed Assets [Abstract]
Other Real Estate Owned
Stock Issued During Period, Value, New Issues
Issuance of preferred stock
Stock Issued During Period, Value, Stock Options Exercised
Exercise of stock options
Stock Issued During Period, Value, Stock Dividend
Shares issued
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period
Options exercised (in shares)
Exercise of stock options (in shares)
Treasury Stock, Shares, Acquired
Purchase of treasury stock (in shares)
Stock Issued During Period, Shares, Period Increase (Decrease)
Mortgage-backed Securities, Issued by Private Enterprises [Member]
Mortgage-backed securities by non-government entities
Schedule of Condensed Financial Statements [Table]
Condensed Financial Statements, Captions [Line Items]
Statements of Condition (Parent Company Only)
Statements of Income (Parent Company Only)
Statements of Cash Flows (Parent Company Only)
Non-cash investing and financing activities:
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Interest Expense, Junior Subordinated Debentures
Junior subordinated interest deferrable debentures
Treasury Stock, Value, Acquired, Cost Method
Purchase of treasury stock (425,655, 408,888, 708,925 shares for the year ended December 31, 2011, 2010 and 2009, respectively)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Stock option activity
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Stock options, weighted average exercise price
Available-for-sale Securities, Fair Value Disclosure
Available for sale securities
Estimated Fair Value
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Black-Scholes-Merton option valuation model assumptions
Dividends, Preferred Stock
Preferred stock (5%) including discount accretion
Senior preferred stock, dividend paid
Shares, Issued
Balance (in shares)
Balance (in shares)
Earnings Per Share [Text Block]
Earnings per Share ("EPS")
Net Income (Loss) Attributable to Noncontrolling Interest
Minority interest in consolidated subsidiaries
Schedule of Accounts, Notes, Loans and Financing Receivable [Table]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
Summary of loans, by loan type
Accounts, Notes, Loans and Financing Receivable by Receivable Type [Axis]
Business Combination Disclosure [Text Block]
Acquisitions
Loans and Leases Receivable, Foreign, Net of Deferred Income
Total loans
Loans and Leases Receivable, Foreign, Allowance
Less allowance for probable loan losses
Commitments and Contingencies
Commitments, Contingent Liabilities and Other Tax Matters (Note 10)
Loans and Leases Receivable, Net Reported Amount, Foreign
Net loans
Dividends [Abstract]
Dividends:
Dividends, Common Stock, Cash
Cash ($.38, $.36 and $.34 per share for the year ended December 31, 2011, 2010 and 2009, respectively)
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Adjustments to reconcile net income to net cash provided by operating activities:
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust [Abstract]
Junior Subordinated Deferrable Interest Debentures
Residential Mortgage Backed Securities [Member]
Mortgage Backed Securities
Available-for-sale Securities [Member]
Available for sale investments
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Other comprehensive income, net of tax
Other comprehensive income (loss), net of tax:
Other comprehensive income, net of tax
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Related Party Transaction, Due from (to) Related Party
Aggregate amount receivable from related parties
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition
Stock compensation expense recognized in earnings
Equity Securities, Other [Member]
Other equity securities
Products and Services [Axis]
Products and Services [Domain]
Future Amortization Expense, after Year Five
Thereafter
Spread on interest rate index (as a percent)
Debt Instrument, Basis Spread on Variable Rate
Net decrease in other borrowed funds
Increase (Decrease) in Loans from Federal Home Loan Banks
Fair Value, Measurement Frequency [Domain]
Fair Value, Measurements, Fair Value Hierarchy [Domain]
Other Assets
Other assets
Fair Value, Measurements, Recurring [Member]
Measured on a recurring basis:
Fair Value, Measurements, Nonrecurring [Member]
Measured on a non-recurring basis:
Loss Contingency, Damages Sought, Value
Loss contingency, amount
Available-for-sale Securities, Gross Unrealized Gains
Gross Unrealized Gains
Schedule of Financing Receivables Past Due [Table]
Schedule of Financing Receivable, Allowance for Credit Losses [Table]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loan loss allowances
Loan loss allowances, impaired financing receivable, evaluated individually or collectively
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment
Loans collectively evaluated for impairment, Allowance
Financing Receivable, Individually Evaluated for Impairment
Loans individually evaluated for impairment, Recorded Investment
Financing Receivable, Collectively Evaluated for Impairment
Loans collectively evaluated for impairment, Recorded Investment
Financing Receivable, by Credit Quality Indicator [Domain]
Pass [Member]
Pass
Special Mention [Member]
Special Review
Substandard [Member]
Watch List - Substandard
Nonperforming Financing Receivable [Member]
Watch List - Impaired
Schedule of Impaired Financing Receivable [Table]
Impaired Financing Receivable with No Related Allowance [Member]
Loans with No Related Allowance
Financing Receivable, Impaired [Line Items]
Loan loss allowances, impaired financing receivable
Impaired Financing Receivable, Unpaid Principal Balance
Unpaid Principal Balance
Impaired Financing Receivable, Average Recorded Investment
Average Recorded Investment
Impaired Financing Receivable, Recorded Investment
Recorded Investment
Impaired Financing Receivable, Interest Income, Accrual Method
Interest Recognized
Impaired Financing Receivable with Related Allowance [Member]
Loans with Related Allowance
Total shareholders' equity before treasury stock
Stockholders' Equity before Treasury Stock
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan loss allowances, financing receivable past due
Financing Receivable, Recorded Investment, Aging [Abstract]
Financing receivable recorded investment
Financing Receivable, Recorded Investment, Current
Loans, current
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due
Past due 30-59 days
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due
Past due 60-89 days
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due
Past due 90 days or greater
Financing Receivable, Recorded Investment, Past Due
Past due, total
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing
Past due 90 days or greater and still accruing
Financing Receivable, Recorded Investment, Nonaccrual Status
Non-accrual loans, total
Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table]
Financing Receivable, Recorded Investment [Line Items]
Loan portfolio by credit quality indicator
Fair Value Disclosure, Off-balance Sheet Risks, Amount, Liability
Outstanding amount of financial instruments whose, contract amounts represent credit risks
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements
Principal paydowns
Net Cash Provided by (Used in) Continuing Operations
(Decrease) increase in cash and cash equivalents
(Decrease) increase in cash
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, by Asset Class [Domain]
Prior Period Reclassification Adjustment [Abstract]
Reclassifications
Number of in store branches being closed
Number of Stores
Impaired Financing Receivable, Related Allowance
Related Allowance
Investment Securities
Preferred stock, Rate (as a percent)
Preferred Stock, Dividend Rate, Percentage
Loans
Schedule of Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table]
Information by Category of Debt Security [Axis]
Allowance for Credit Losses on Financing Receivables [Table Text Block]
Loans individually or collectively evaluated for impairment and related allowance, by loan class
Financing Receivable Credit Quality Indicators [Table Text Block]
Summary of the loan portfolio by credit quality indicator, by loan class
Impaired Financing Receivables [Table Text Block]
Impaired loans, by loan class
Past Due Financing Receivables [Table Text Block]
Information regarding the aging of past due loans, by loan class
Fair Value by Asset Class [Axis]
Fair Value, Hierarchy [Axis]
Fair Value by Measurement Frequency [Axis]
Financing Receivable Information by Credit Quality Indicator [Axis]
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
Schedule of future minimum lease payments due under non-cancellable operating leases
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Schedule of tax effects of temporary difference that give rise to significant portions of the deferred tax assets and deferred tax liabilities
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Schedule of current and deferred portions of net income tax expense
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Schedule of income tax expense differences from the amount computed by applying the U.S. Federal income tax rate to income before income taxes
Schedule of Expected Amortization Expense [Table Text Block]
Schedule of estimated amortization expense for each of the five succeeding fiscal years and thereafter
Schedule of Unrealized Loss on Investments [Table Text Block]
Gross unrealized losses on investment securities and the related fair value
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Assets and liabilities measured at fair value on a recurring basis
Commitments and Contingent Liabilities and Other Tax Matters
Income Taxes
Goodwill and Other Intangible Assets
Fair Value Measurements
Operating Leases, Rent Expense, Net
Total rental expense
Available-for-sale Equity Securities, Amortized Cost Basis
Equity securities, amortized cost
Schedule of Credit Losses Related to Financing Receivables, Current and Noncurrent [Table Text Block]
Summary of the transactions in the allowance for probable loan losses
Schedule of Financing Receivables, Non Accrual Status [Table Text Block]
Loans accounted on non-accrual basis, by loan class
Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value [Table Text Block]
Schedule of other information pertaining to option activity
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
Summary of option activity under stock option plans
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
Schedule of Black-Scholes-Merton option valuation model assumptions
Letters of Credit Outstanding, Amount
Outstanding standby and commercial letters of credit
Unsecured letters of credit
Held-to-maturity Securities, Amortized Cost before Other than Temporary Impairment
Amortized Cost
Stock Options
Allowance for Credit Losses [Text Block]
Allowance for Probable Loan Losses
Segment Reporting, Policy [Policy Text Block]
Segments of an Enterprise and Related Information
Subsequent Events, Policy [Policy Text Block]
Subsequent Events
Stock Repurchase Program, Authorized Amount
Repurchase of common stock, authorized amount
Stock Repurchase Program, Period in Force
Period of repurchase of common stock (in months)
Restricted Stock Units (RSUs) [Member]
Restricted Stock Units (RSUs)
Assets, Fair Value Disclosure [Abstract]
Assets:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets and liabilities reported at fair value on recurring and nonrecurring basis
Summary of Significant Accounting Policies
Employees' Profit Sharing Plan
Segment Reporting [Abstract]
Segments of an Enterprise and Related Information
Transactions with Related Parties
Capital Ratios
Held-to-maturity Securities, Unrecognized Holding Gain
Gross Unrealized Gains
Held-to-maturity Securities, Unrecognized Holding Loss
Gross unrealized losses
Gross Unrealized Losses
Available-for-sale Securities, Gross Unrealized Losses
Gross unrealized losses
Gross Unrealized Losses
Range [Axis]
Range [Domain]
Maximum [Member]
Maximum
Minimum [Member]
Minimum
Net transfer from loans to other real estate owned
Transfer of Other Real Estate
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Schedule of calculation of the basic EPS and the diluted EPS
Preferred stock dividends
Preferred Stock Dividends, Income Statement Impact
Investment Type Categorization [Domain]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Options outstanding at the end, weighted average remaining contractual term (in years)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value
Options fully vested and exercisable at the end, aggregate intrinsic value
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses
Unrealized losses, less than 12 months
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses
Unrealized losses, 12 months or more
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses
Unrealized losses, total
Investments Classified by Contractual Maturity Date [Table Text Block]
Amortized cost and fair value of investment securities, by contractual maturity
Investment Type [Axis]
Schedule of Investments [Line Items]
Investment securities disclosures
Accumulated Other Comprehensive Income (Loss), Other than Temporary Impairment, Not Credit Loss, Net of Tax, Debt Securities
Accumulated other comprehensive income, comprehensive loss related to other-than-temporary impairment for non-credit related issues (in dollars)
Gain on investment securities transactions, net
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net
Impairment charges on available-for-sale investment securities
Impairment charges (Total other-than-temporary impairment losses, $(301), net of $(523), $(254), net of $(420), $1,349, net of $941, and $1,055, net of $640, included in other comprehensive income)
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Categories of Investments [Domain]
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Reconciliation of credit-related impairment charges on investments recognized in earnings
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held
Balance at the beginning
Balance at the end
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, Additional Credit Losses
Impairment charges representing the credit loss on non-agency mortgage-backed securities
Impairment charges recognized in earnings during period
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Credit-related impairment charges on investments recognized in earnings
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table Text Block]
Reconciliation of credit-related impairment charges on available-for-sale investment
Number of Material Non Recognizable Event
Number of material non-recognizable event
Represents the number of material non-recognizable event.
Accrued Dividends Preferred Stock Value
Accrued dividend on Senior Preferred Stock
This element represents amount of accrued dividend on Senior Preferred Stock as on reporting period.