$IBOC
INTERNATIONAL BANCSHARES CORP Stock $iboc

$iboc Overview Financials Valuation SEC Filings Company Website

2013 Q4 Form 10-K Financial Statement

#000104746914001224 Filed on February 24, 2014

Income Statement

Concept	2013 Q4	2013	2012 Q4
Revenue		$363.2M
YoY Change		-3.31%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$7.400M	$30.60M	$7.700M
YoY Change	-3.9%	-2.86%	-33.04%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense		$54.63M
YoY Change		-26.67%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$56.60M	$182.6M	$38.70M
YoY Change	46.25%	15.27%	-14.95%
Income Tax	$17.70M	$56.24M	$13.00M
% Of Pretax Income	31.27%	30.8%	33.59%
Net Earnings	$38.90M	$126.4M	$25.70M
YoY Change	51.36%	17.17%	-15.46%
Net Earnings / Revenue		34.79%
Basic Earnings Per Share		$1.88
Diluted Earnings Per Share	$577.2K	$1.88	$381.9K
COMMON SHARES
Basic Shares Outstanding		67.20M shares
Diluted Shares Outstanding		67.31M shares

Balance Sheet

Concept	2013 Q4	2013	2012 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$5.582B		$5.811B
YoY Change	-3.94%		6.07%
Cash & Equivalents	$274.8M		$283.1M
Short-Term Investments	$5.307B		$5.527B
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$504.8M	$505.0M	$481.3M
YoY Change	4.89%	4.99%	6.23%
Goodwill	$282.5M		$282.5M
YoY Change	0.0%		0.0%
Intangibles	$3.186M		$7.819M
YoY Change	-59.25%		-35.86%
Long-Term Investments
YoY Change
Other Assets		$64.00M
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$12.08B	$12.08B	$11.88B
YoY Change	1.66%	1.65%	1.22%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$957.0M	$246.0M	$1.130B
YoY Change	-15.31%	-78.23%	-16.23%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$957.0M	$246.0M	$1.130B
YoY Change	-15.31%	-78.23%	-16.23%
LONG-TERM LIABILITIES
Long-Term Debt	$191.0M	$902.0M	$191.0M
YoY Change	0.0%	372.25%	0.0%
Other Long-Term Liabilities	$40.00M	-$11.00M	$90.00M
YoY Change	-55.56%	-112.22%	-43.75%
Total Long-Term Liabilities	$231.0M	$891.0M	$281.0M
YoY Change	-17.79%	217.08%	-19.94%
TOTAL LIABILITIES
Total Short-Term Liabilities	$957.0M	$246.0M	$1.130B
Total Long-Term Liabilities	$231.0M	$891.0M	$281.0M
Total Liabilities	$10.66B	$10.66B	$10.45B
YoY Change	1.99%	1.99%	3.03%
SHAREHOLDERS EQUITY
Retained Earnings	$1.467B		$1.370B
YoY Change	7.12%		5.11%
Common Stock	$95.74M		$95.73M
YoY Change	0.02%		0.01%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$258.5M		$258.5M
YoY Change	0.0%		0.67%
Treasury Stock Shares	28.54M shares		28.54M shares
Shareholders Equity	$1.424B	$1.424B	$1.436B
YoY Change
Total Liabilities & Shareholders Equity	$12.08B	$12.08B	$11.88B
YoY Change	1.66%	1.65%	1.22%

Cashflow Statement

Concept	2013 Q4	2013	2012 Q4
OPERATING ACTIVITIES
Net Income	$38.90M	$126.4M	$25.70M
YoY Change	51.36%	17.17%	-15.46%
Depreciation, Depletion And Amortization	$7.400M	$30.60M	$7.700M
YoY Change	-3.9%	-2.86%	-33.04%
Cash From Operating Activities	$48.70M	$209.1M	$41.40M
YoY Change	17.63%	30.69%	-358.75%
INVESTING ACTIVITIES
Capital Expenditures	-$19.20M	$50.02M	-$38.60M
YoY Change	-50.26%	-19.37%	443.66%
Acquisitions
YoY Change
Other Investing Activities	-$63.20M	-$397.6M	-$173.4M
YoY Change	-63.55%	100.1%	784.69%
Cash From Investing Activities	-$82.40M	-$447.6M	-$212.0M
YoY Change	-61.13%	71.49%	691.04%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	6.000M	230.2M	193.6M
YoY Change	-96.9%	88.38%	157.79%
NET CHANGE
Cash From Operating Activities	48.70M	209.1M	41.40M
Cash From Investing Activities	-82.40M	-447.6M	-212.0M
Cash From Financing Activities	6.000M	230.2M	193.6M
Net Change In Cash	-27.70M	-8.300M	23.00M
YoY Change	-220.43%	-139.15%	-28.79%
FREE CASH FLOW
Cash From Operating Activities	$48.70M	$209.1M	$41.40M
Capital Expenditures	-$19.20M	$50.02M	-$38.60M
Free Cash Flow	$67.90M	$159.1M	$80.00M
YoY Change	-15.13%	62.38%	-998.88%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2012Q4	iboc	Available For Sale Securities Gross Unrealized Gain Accumulated In Investments AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments	119670000	USD
CY2013Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	2400000	USD
CY2012Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	5423189000	USD
CY2013Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	5372594000	USD
CY2013Q4	iboc	Available For Sale Securities Gross Unrealized Gain Accumulated In Investments AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments	65104000	USD
CY2012Q4	iboc	Available For Sale Securities Gross Unrealized Loss Accumulated In Investments AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments	17844000	USD
CY2013Q4	iboc	Available For Sale Securities Gross Unrealized Loss Accumulated In Investments AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments	133119000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	125000	USD
CY2013	iboc	Number Of Active Operating Subsidiaries NumberOfActiveOperatingSubsidiaries	4	item
CY2012Q4	us-gaap	Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment	2400000	USD
CY2013	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="font-size:10.0pt;font-family:Times New Roman;"> <p style="TEXT-ALIGN: justify; FONT-FAMILY: times;"><font size="2"><i>Reclassifications</i></font></p> <p style="TEXT-ALIGN: justify; FONT-FAMILY: times;"><font size="2">        Certain amounts in the prior year's presentations have been reclassified to conform to the current presentation. These reclassifications had no effect on previously reported net income or shareholders' equity.</font></p> </div>
CY2013	iboc	Entity Number Of Insurance Related Subsidiaries EntityNumberOfInsuranceRelatedSubsidiaries	2	item
CY2013	iboc	Number Of Components Other Than Temporary Impairment Segregated NumberOfComponentsOtherThanTemporaryImpairmentSegregated	2	item
CY2013	iboc	Period Of Charge Off For Past Due Unsecured Commercial Loans PeriodOfChargeOffForPastDueUnsecuredCommercialLoans	P90D
CY2013	iboc	Minimum Period For Past Due Unsecured Loans Outstanding Not Placed On Non Accrual Status Under Special Circumstances MinimumPeriodForPastDueUnsecuredLoansOutstandingNotPlacedOnNonAccrualStatusUnderSpecialCircumstances	P90D
CY2013	iboc	Maximum Period Outstanding Non Consumer Loans Are Evaluated For Non Accrual Status MaximumPeriodOutstandingNonConsumerLoansAreEvaluatedForNonAccrualStatus	P90D
CY2012Q4	iboc	Other Real Estate And Foreclosed Assets In Use OtherRealEstateAndForeclosedAssetsInUse	100106000	USD
CY2013Q4	iboc	Other Real Estate And Foreclosed Assets In Use OtherRealEstateAndForeclosedAssetsInUse	85879000	USD
CY2013	iboc	Percentage Of Likelihood Of Realization Of Recognized Tax Benefit PercentageOfLikelihoodOfRealizationOfRecognizedTaxBenefit	0.50	pure
CY2013	iboc	Maximum Term Of Maturity To Classify Short Term Investments As Cash Equivalents MaximumTermOfMaturityToClassifyShortTermInvestmentsAsCashEquivalents	P3M
CY2013	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	item
CY2013Q4	us-gaap	Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment	2400000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	2400000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	2400000	USD
CY2012Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	2400000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	2275000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	125000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	2275000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	704000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	247650000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	5096165000	USD
CY2013Q4	us-gaap	Available For Sale Equity Securities Amortized Cost Basis AvailableForSaleEquitySecuritiesAmortizedCostBasis	28075000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	749000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	247662000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	5027701000	USD
CY2013Q4	us-gaap	Available For Sale Securities Equity Securities AvailableForSaleSecuritiesEquitySecurities	28468000	USD
CY2013Q4	iboc	Available For Sale Securities Pledged As Collateral Amortized Cost AvailableForSaleSecuritiesPledgedAsCollateralAmortizedCost	2250755000	USD
CY2013Q4	us-gaap	Available For Sale Securities Pledged As Collateral AvailableForSaleSecuritiesPledgedAsCollateral	2264525000	USD
CY2012	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	1382231000	USD
CY2011	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	1102849000	USD
CY2013	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	178123000	USD
CY2012	us-gaap	Proceeds From Sale Of Mortgage Backed Securities Mbs Categorized As Available For Sale ProceedsFromSaleOfMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale	1338723000	USD
CY2011	us-gaap	Proceeds From Sale Of Mortgage Backed Securities Mbs Categorized As Available For Sale ProceedsFromSaleOfMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale	1095815000	USD
CY2013	us-gaap	Proceeds From Sale Of Mortgage Backed Securities Mbs Categorized As Available For Sale ProceedsFromSaleOfMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale	177623000	USD
CY2012	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	38447000	USD
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CY2013	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	9601000	USD
CY2012	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	1000	USD
CY2011	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	33000	USD
CY2013	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	0	USD
CY2012	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	1039000	USD
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CY2013	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	1374000	USD
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CY2012Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	743609000	USD
CY2013Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	2534354000	USD
CY2012Q4	iboc	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses Accumulated In Investments AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLossesAccumulatedInInvestments	5590000	USD
CY2013Q4	iboc	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses Accumulated In Investments AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLossesAccumulatedInInvestments	101585000	USD
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CY2013Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	434554000	USD
CY2012Q4	iboc	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses Accumulated In Investments AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLossesAccumulatedInInvestments	12254000	USD
CY2013Q4	iboc	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses Accumulated In Investments AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLossesAccumulatedInInvestments	31534000	USD
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CY2012Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	58193000	USD
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CY2012	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	58346000	USD
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CY2012	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	4388000	USD
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CY2012Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	83005000	USD
CY2012Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	4746000	USD
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CY2013Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	16002000	USD
CY2012Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	4691999000	USD
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CY2012Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	53447000	USD
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CY2012Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	71768000	USD
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CY2012Q4	us-gaap	Financing Receivable Recorded Investment Equal To Greater Than90 Days Past Due FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue	42357000	USD
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CY2012Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	4684768000	USD
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CY2013	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4633000	USD
CY2012	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4651000	USD
CY2011	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5293000	USD
CY2013Q4	us-gaap	Noninterest Bearing Deposit Liabilities Domestic NoninterestBearingDepositLiabilitiesDomestic	2175694000	USD
CY2012Q4	us-gaap	Noninterest Bearing Deposit Liabilities Domestic NoninterestBearingDepositLiabilitiesDomestic	2002920000	USD
CY2013Q4	us-gaap	Noninterest Bearing Deposit Liabilities Foreign NoninterestBearingDepositLiabilitiesForeign	490816000	USD
CY2012Q4	us-gaap	Noninterest Bearing Deposit Liabilities Foreign NoninterestBearingDepositLiabilitiesForeign	462830000	USD
CY2012Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	2465750000	USD
CY2013Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	2666510000	USD
CY2013Q4	us-gaap	Interest Bearing Deposit Liabilities Domestic InterestBearingDepositLiabilitiesDomestic	2364905000	USD
CY2012Q4	us-gaap	Interest Bearing Deposit Liabilities Domestic InterestBearingDepositLiabilitiesDomestic	2350872000	USD
CY2013Q4	us-gaap	Interest Bearing Deposit Liabilities Foreign InterestBearingDepositLiabilitiesForeign	560707000	USD
CY2012Q4	us-gaap	Interest Bearing Deposit Liabilities Foreign InterestBearingDepositLiabilitiesForeign	516279000	USD
CY2013Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	2925612000	USD
CY2012Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	2867151000	USD
CY2012Q4	us-gaap	Time Deposits100000 Or More Domestic TimeDeposits100000OrMoreDomestic	973824000	USD
CY2012Q4	us-gaap	Time Deposits100000 Or More Foreign TimeDeposits100000OrMoreForeign	1025089000	USD
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CY2013Q4	us-gaap	Time Deposits100000 Or More Foreign TimeDeposits100000OrMoreForeign	938940000	USD
CY2012Q4	iboc	Time Deposits Less Than100000 Domestic TimeDepositsLessThan100000Domestic	601766000	USD
CY2012Q4	iboc	Time Deposits Less Than100000 Foreign TimeDepositsLessThan100000Foreign	353633000	USD
CY2013Q4	iboc	Time Deposits Less Than100000 Domestic TimeDepositsLessThan100000Domestic	531503000	USD
CY2013Q4	iboc	Time Deposits Less Than100000 Foreign TimeDepositsLessThan100000Foreign	324160000	USD
CY2012Q4	us-gaap	Time Deposits TimeDeposits	2954312000	USD
CY2013Q4	us-gaap	Time Deposits TimeDeposits	2651303000	USD
CY2012Q4	us-gaap	Deposits Deposits	8287213000	USD
CY2013Q4	us-gaap	Deposits Deposits	8243425000	USD
CY2012	iboc	Interest Expense Now Accounts Money Market Accounts And Savings Deposit Domestic InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDepositDomestic	4487000	USD
CY2011	iboc	Interest Expense Now Accounts Money Market Accounts And Savings Deposit Domestic InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDepositDomestic	6549000	USD
CY2013	iboc	Interest Expense Now Accounts Money Market Accounts And Savings Deposit Domestic InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDepositDomestic	3182000	USD
CY2013	iboc	Interest Expense Now Accounts Money Market Accounts And Savings Deposit Foreign InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDepositForeign	580000	USD
CY2012	iboc	Interest Expense Now Accounts Money Market Accounts And Savings Deposit Foreign InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDepositForeign	801000	USD
CY2011	iboc	Interest Expense Now Accounts Money Market Accounts And Savings Deposit Foreign InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDepositForeign	1234000	USD
CY2013	us-gaap	Interest Expense Now Accounts Money Market Accounts And Savings Deposits InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDeposits	3762000	USD
CY2012	us-gaap	Interest Expense Now Accounts Money Market Accounts And Savings Deposits InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDeposits	5288000	USD
CY2011	us-gaap	Interest Expense Now Accounts Money Market Accounts And Savings Deposits InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDeposits	7783000	USD
CY2013	iboc	Interest Expense Time Deposits100000 Or More Domestic InterestExpenseTimeDeposits100000OrMoreDomestic	5761000	USD
CY2012	iboc	Interest Expense Time Deposits100000 Or More Domestic InterestExpenseTimeDeposits100000OrMoreDomestic	8263000	USD
CY2011	iboc	Interest Expense Time Deposits100000 Or More Domestic InterestExpenseTimeDeposits100000OrMoreDomestic	10299000	USD
CY2013	iboc	Interest Expense Time Deposits100000 Or More Foreign InterestExpenseTimeDeposits100000OrMoreForeign	5590000	USD
CY2012	iboc	Interest Expense Time Deposits100000 Or More Foreign InterestExpenseTimeDeposits100000OrMoreForeign	9148000	USD
CY2011	iboc	Interest Expense Time Deposits100000 Or More Foreign InterestExpenseTimeDeposits100000OrMoreForeign	11512000	USD
CY2013	iboc	Interest Expense Time Deposits Less Than100000 Domestic InterestExpenseTimeDepositsLessThan100000Domestic	3065000	USD
CY2012	iboc	Interest Expense Time Deposits Less Than100000 Domestic InterestExpenseTimeDepositsLessThan100000Domestic	4945000	USD
CY2011	iboc	Interest Expense Time Deposits Less Than100000 Domestic InterestExpenseTimeDepositsLessThan100000Domestic	7468000	USD
CY2013	iboc	Interest Expense Time Deposits Less Than100000 Foreign InterestExpenseTimeDepositsLessThan100000Foreign	1028000	USD
CY2012	iboc	Interest Expense Time Deposits Less Than100000 Foreign InterestExpenseTimeDepositsLessThan100000Foreign	1617000	USD
CY2011	iboc	Interest Expense Time Deposits Less Than100000 Foreign InterestExpenseTimeDepositsLessThan100000Foreign	2277000	USD
CY2013	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	15444000	USD
CY2012	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	23973000	USD
CY2011	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	31556000	USD
CY2013	us-gaap	Interest Expense Deposits InterestExpenseDeposits	19206000	USD
CY2012	us-gaap	Interest Expense Deposits InterestExpenseDeposits	29261000	USD
CY2011	us-gaap	Interest Expense Deposits InterestExpenseDeposits	39339000	USD
CY2013Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	187430000	USD
CY2013Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	63018000	USD
CY2013Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	28521000	USD
CY2013Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	1940000	USD
CY2013Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	2370338000	USD
CY2013Q4	us-gaap	Contractual Maturities Time Deposits100000 Or More Three Months Or Less ContractualMaturitiesTimeDeposits100000OrMoreThreeMonthsOrLess	673126000	USD
CY2013Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	56000	USD
CY2013Q4	us-gaap	Contractual Maturities Time Deposits100000 Or More Three Months Through Six Months ContractualMaturitiesTimeDeposits100000OrMoreThreeMonthsThroughSixMonths	441749000	USD
CY2013Q4	us-gaap	Contractual Maturities Time Deposits100000 Or More Six Months Through12 Months ContractualMaturitiesTimeDeposits100000OrMoreSixMonthsThrough12Months	494928000	USD
CY2013Q4	us-gaap	Contractual Maturities Time Deposits100000 Or More After12 Months ContractualMaturitiesTimeDeposits100000OrMoreAfter12Months	185837000	USD
CY2013Q4	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	1795640000	USD
CY2013	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	USD
CY2013	us-gaap	Schedule Of Repurchase Agreements ScheduleOfRepurchaseAgreements	<div style="font-size:10.0pt;font-family:Times New Roman;FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" align="center"> <table style="text-align:left;TEXT-ALIGN: left; WIDTH: 688px;" border="0" cellspacing="0" cellpadding="0" width="688"> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;" valign="bottom"> <th style="FONT-FAMILY: times;" align="left"></th> <th style="FONT-FAMILY: times;"><font size="1"> </font></th> <th style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times;" colspan="5" align="center"><font size="1"><b>Collateral Securities</b></font></th> <th style="FONT-FAMILY: times;"><font size="1"> </font></th> <th style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times;" colspan="5" align="center"><font size="1"><b>Repurchase Borrowing</b></font></th> <th style="FONT-FAMILY: times;"><font size="1"> </font></th></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;" valign="bottom"> <th style="FONT-FAMILY: times;" align="left"><font size="1"> </font><br /></th> <th style="FONT-FAMILY: times;"><font size="1"> </font></th> <th style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times;" colspan="2" align="center"><font size="1"><b>Book Value of<br /> Securities Sold</b></font></th> <th style="FONT-FAMILY: times;"><font size="1"> </font></th> <th style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times;" colspan="2" align="center"><font size="1"><b>Fair Value of<br /> Securities Sold</b></font></th> <th style="FONT-FAMILY: times;"><font size="1"> </font></th> <th style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times;" colspan="2" align="center"><font size="1"><b>Balance of<br /> Liability</b></font></th> <th style="FONT-FAMILY: times;"><font size="1"> </font></th> <th style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times;" colspan="2" align="center"><font size="1"><b>Weighted Average<br /> Interest Rate</b></font></th> <th style="FONT-FAMILY: times;"><font size="1"> </font></th></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;" valign="bottom"> <th style="FONT-FAMILY: times;" align="left"><font size="1"> </font><br /></th> <th style="FONT-FAMILY: times;"><font size="1"> </font></th> <th style="FONT-FAMILY: times;" colspan="11" align="center"><font size="1"><b>(Dollars in Thousands)</b></font><br /></th> <th style="FONT-FAMILY: times;"><font size="1"> </font></th></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;" valign="top" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times;" valign="bottom"> <p style="TEXT-INDENT: -10pt; FONT-FAMILY: times; MARGIN-LEFT: 10pt;"><font size="2">December 31, 2013 term:</font></p></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;" valign="top" bgcolor="white"> <td style="FONT-FAMILY: times;" valign="bottom"> <p style="TEXT-INDENT: -10pt; FONT-FAMILY: times; MARGIN-LEFT: 20pt;"><font size="2">Overnight agreements</font></p></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">$</font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">332,042</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">$</font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">341,238</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">$</font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">209,899</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">.17</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2">%</font></td></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;" valign="top" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times;" valign="bottom"> <p style="TEXT-INDENT: -10pt; FONT-FAMILY: times; MARGIN-LEFT: 20pt;"><font size="2">1 to 29 days</font></p></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">27,954</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">28,288</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">18,666</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">.40</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;" valign="top" bgcolor="white"> <td style="FONT-FAMILY: times;" valign="bottom"> <p style="TEXT-INDENT: -10pt; FONT-FAMILY: times; MARGIN-LEFT: 20pt;"><font size="2">30 to 90 days</font></p></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">8,106</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">8,263</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">3,295</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">.43</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;" valign="top" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times;" valign="bottom"> <p style="TEXT-INDENT: -10pt; FONT-FAMILY: times; MARGIN-LEFT: 20pt;"><font size="2">Over 90 days</font></p></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">945,535</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">940,209</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">725,521</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">3.78</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; FONT-SIZE: 1.5pt; PADDING-TOP: 0px;" valign="top" bgcolor="#ffffff"> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"><!-- COMMAND=ADD_ROWSHADECOLOR,"#FFFFFF" --><!-- COMMAND=ADD_GUTTERGRID,"line-height:0pt;" --> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="BORDER-BOTTOM: #000000 1pt solid; LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom" colspan="2" align="right"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="BORDER-BOTTOM: #000000 1pt solid; LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom" colspan="2" align="right"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="BORDER-BOTTOM: #000000 1pt solid; LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom" colspan="2" align="right"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom" align="right"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;" valign="top" bgcolor="#ffffff"> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"><font size="2"><!-- COMMAND=ADD_ROWSHADECOLOR,"#FFFFFF" --><!-- COMMAND=ADD_GUTTERGRID,"line-height:0.1pt;" --></font></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom" align="right"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom" align="right"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom" align="right"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom" align="right"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;" valign="top" bgcolor="white"> <td style="FONT-FAMILY: times;" valign="bottom"> <p style="TEXT-INDENT: -10pt; FONT-FAMILY: times; MARGIN-LEFT: 20pt;"><font size="2">Total</font></p></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">$</font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">1,313,637</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">$</font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">1,317,998</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">$</font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">957,381</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">2.91</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2">%</font></td></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; FONT-SIZE: 1.5pt; PADDING-TOP: 0px;" valign="top" bgcolor="#ffffff"> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"><!-- COMMAND=ADD_ROWSHADECOLOR,"#FFFFFF" --><!-- COMMAND=ADD_GUTTERGRID,"line-height:0pt;" --> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="BORDER-BOTTOM: #000000 1pt solid; LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom" colspan="2" align="right"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="BORDER-BOTTOM: #000000 1pt solid; LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom" colspan="2" align="right"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="BORDER-BOTTOM: #000000 1pt solid; LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom" colspan="2" align="right"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom" align="right"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;" valign="top" bgcolor="#ffffff"> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"><font size="2"><!-- COMMAND=ADD_ROWSHADECOLOR,"#FFFFFF" --><!-- COMMAND=ADD_GUTTERGRID,"line-height:0.1pt;" --></font></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom" align="right"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom" align="right"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom" align="right"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom" align="right"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;" valign="top" bgcolor="#ffffff"> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom"><font size="2"><!-- COMMAND=ADD_ROWSHADECOLOR,"#FFFFFF" --><!-- COMMAND=ADD_GUTTERGRID,"line-height:0.75pt;" --></font></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom" align="right"></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom" align="right"></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom" align="right"></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom" align="right"></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom"></td></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; FONT-SIZE: 1.5pt; PADDING-TOP: 0px;" valign="top" bgcolor="#ffffff"> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"><!-- COMMAND=ADD_ROWSHADECOLOR,"#FFFFFF" --><!-- COMMAND=ADD_GUTTERGRID,"line-height:0pt;" --> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="BORDER-BOTTOM: #000000 1pt solid; LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom" colspan="2" align="right"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="BORDER-BOTTOM: #000000 1pt solid; LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom" colspan="2" align="right"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="BORDER-BOTTOM: #000000 1pt solid; LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom" colspan="2" align="right"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom" align="right"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;" valign="top" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times;" valign="bottom"> <p style="TEXT-INDENT: -10pt; FONT-FAMILY: times; MARGIN-LEFT: 10pt;"><font size="2">December 31, 2012 term:</font></p></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;" valign="top" bgcolor="white"> <td style="FONT-FAMILY: times;" valign="bottom"> <p style="TEXT-INDENT: -10pt; FONT-FAMILY: times; MARGIN-LEFT: 20pt;"><font size="2">Overnight agreements</font></p></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">$</font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">340,711</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">$</font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">350,933</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">$</font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">263,992</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">.28</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2">%</font></td></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;" valign="top" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times;" valign="bottom"> <p style="TEXT-INDENT: -10pt; FONT-FAMILY: times; MARGIN-LEFT: 20pt;"><font size="2">1 to 29 days</font></p></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">10,378</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">10,910</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">6,992</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">1.10</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;" valign="top" bgcolor="white"> <td style="FONT-FAMILY: times;" valign="bottom"> <p style="TEXT-INDENT: -10pt; FONT-FAMILY: times; MARGIN-LEFT: 20pt;"><font size="2">30 to 90 days</font></p></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">33,619</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">35,097</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">22,078</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">1.05</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;" valign="top" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times;" valign="bottom"> <p style="TEXT-INDENT: -10pt; FONT-FAMILY: times; MARGIN-LEFT: 20pt;"><font size="2">Over 90 days</font></p></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">1,033,957</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">1,062,897</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">836,617</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">3.73</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; FONT-SIZE: 1.5pt; PADDING-TOP: 0px;" valign="top" bgcolor="#ffffff"> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"><!-- COMMAND=ADD_ROWSHADECOLOR,"#FFFFFF" --><!-- COMMAND=ADD_GUTTERGRID,"line-height:0pt;" --> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="BORDER-BOTTOM: #000000 1pt solid; LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom" colspan="2" align="right"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="BORDER-BOTTOM: #000000 1pt solid; LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom" colspan="2" align="right"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="BORDER-BOTTOM: #000000 1pt solid; LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom" colspan="2" align="right"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom" align="right"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;" valign="top" bgcolor="#ffffff"> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"><font size="2"><!-- COMMAND=ADD_ROWSHADECOLOR,"#FFFFFF" --><!-- COMMAND=ADD_GUTTERGRID,"line-height:0.1pt;" --></font></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom" align="right"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom" align="right"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom" align="right"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom" align="right"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;" valign="top" bgcolor="white"> <td style="FONT-FAMILY: times;" valign="bottom"> <p style="TEXT-INDENT: -10pt; FONT-FAMILY: times; MARGIN-LEFT: 20pt;"><font size="2">Total</font></p></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">$</font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">1,418,665</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">$</font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">1,459,837</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">$</font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">1,129,679</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">2.85</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2">%</font></td></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; FONT-SIZE: 1.5pt; PADDING-TOP: 0px;" valign="top" bgcolor="#ffffff"> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"><!-- COMMAND=ADD_ROWSHADECOLOR,"#FFFFFF" --><!-- COMMAND=ADD_GUTTERGRID,"line-height:0pt;" --> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="BORDER-BOTTOM: #000000 1pt solid; LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom" colspan="2" align="right"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="BORDER-BOTTOM: #000000 1pt solid; LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom" colspan="2" align="right"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="BORDER-BOTTOM: #000000 1pt solid; LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom" colspan="2" align="right"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom" align="right"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;" valign="top" bgcolor="#ffffff"> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"><font size="2"><!-- COMMAND=ADD_ROWSHADECOLOR,"#FFFFFF" --><!-- COMMAND=ADD_GUTTERGRID,"line-height:0.1pt;" --></font></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom" align="right"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom" align="right"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom" align="right"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom" align="right"></td> <td style="LINE-HEIGHT: 0.1pt; FONT-FAMILY: times;" valign="bottom"></td></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;" valign="top" bgcolor="#ffffff"> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom"><font size="2"><!-- COMMAND=ADD_ROWSHADECOLOR,"#FFFFFF" --><!-- COMMAND=ADD_GUTTERGRID,"line-height:0.75pt;" --></font></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom" align="right"></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom" align="right"></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom" align="right"></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom"></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom" align="right"></td> <td style="LINE-HEIGHT: 0.75pt; FONT-FAMILY: times;" valign="bottom"></td></tr> <tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; FONT-SIZE: 1.5pt; PADDING-TOP: 0px;" valign="top" bgcolor="#ffffff"> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"><!-- COMMAND=ADD_ROWSHADECOLOR,"#FFFFFF" --><!-- COMMAND=ADD_GUTTERGRID,"line-height:0pt;" --> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="BORDER-BOTTOM: #000000 1pt solid; LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom" colspan="2" align="right"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="BORDER-BOTTOM: #000000 1pt solid; LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom" colspan="2" align="right"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="BORDER-BOTTOM: #000000 1pt solid; LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom" colspan="2" align="right"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom" align="right"> </td> <td style="LINE-HEIGHT: 0pt; FONT-FAMILY: times;" valign="bottom"> </td></tr></table></div>
CY2012	iboc	Securities Sold Under Agreements To Repurchase Average Outstanding Amount SecuritiesSoldUnderAgreementsToRepurchaseAverageOutstandingAmount	1276831000	USD
CY2013	iboc	Securities Sold Under Agreements To Repurchase Average Outstanding Amount SecuritiesSoldUnderAgreementsToRepurchaseAverageOutstandingAmount	1041186000	USD
CY2013Q4	iboc	Securities Sold Under Agreements To Repurchase Maximum Outstanding Amount At Any Month End SecuritiesSoldUnderAgreementsToRepurchaseMaximumOutstandingAmountAtAnyMonthEnd	1119531000	USD
CY2012Q4	iboc	Securities Sold Under Agreements To Repurchase Maximum Outstanding Amount At Any Month End SecuritiesSoldUnderAgreementsToRepurchaseMaximumOutstandingAmountAtAnyMonthEnd	1412744000	USD
CY2013Q4	us-gaap	Assets Sold Under Agreements To Repurchase Carrying Amounts AssetsSoldUnderAgreementsToRepurchaseCarryingAmounts	1313637000	USD
CY2012Q4	us-gaap	Assets Sold Under Agreements To Repurchase Carrying Amounts AssetsSoldUnderAgreementsToRepurchaseCarryingAmounts	1418665000	USD
CY2013Q4	us-gaap	Assets Sold Under Agreements To Repurchase Market Value AssetsSoldUnderAgreementsToRepurchaseMarketValue	1317998000	USD
CY2012Q4	us-gaap	Assets Sold Under Agreements To Repurchase Market Value AssetsSoldUnderAgreementsToRepurchaseMarketValue	1459837000	USD
CY2013Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	957381000	USD
CY2012Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	1129679000	USD
CY2013Q4	us-gaap	Assets Sold Under Agreements To Repurchase Interest Rate AssetsSoldUnderAgreementsToRepurchaseInterestRate	0.0291	pure
CY2012Q4	us-gaap	Assets Sold Under Agreements To Repurchase Interest Rate AssetsSoldUnderAgreementsToRepurchaseInterestRate	0.0285	pure
CY2013	iboc	Number Of Statutory Business Trusts Issuing Preferred Securities NumberOfStatutoryBusinessTrustsIssuingPreferredSecurities	8	item
CY2013Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	190726000	USD
CY2012Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	190726000	USD
CY2013	iboc	Maximum Number Of Consecutive Quarterly Periods Available For Deferral Of Payment Of Interest MaximumNumberOfConsecutiveQuarterlyPeriodsAvailableForDeferralOfPaymentOfInterest	20	item
CY2013	iboc	Maximum Percentage Of Capital Securities Issued By Trust Qualifying As Tier One Capital MaximumPercentageOfCapitalSecuritiesIssuedByTrustQualifyingAsTierOneCapital	0.25	pure
CY2013	iboc	Minimum Percentage Of Capital Securities Issued By Trust Qualifying As Tier Two Capital MinimumPercentageOfCapitalSecuritiesIssuedByTrustQualifyingAsTierTwoCapital	0.25	pure
CY2012Q4	iboc	Capital Securities Issued By Trust Qualifying As Tier One Capital CapitalSecuritiesIssuedByTrustQualifyingAsTierOneCapital	190726000	USD
CY2013Q4	iboc	Capital Securities Issued By Trust Qualifying As Tier One Capital CapitalSecuritiesIssuedByTrustQualifyingAsTierOneCapital	190726000	USD
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	93473000	USD
CY2011	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	113869000	USD
CY2013	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	126351000	USD
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	67236681	shares
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	67506554	shares
CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	67195180	shares
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.39
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.69
CY2013	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.88
CY2012	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	77282	shares
CY2011	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	62914	shares
CY2013	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	119679	shares
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	67313963	shares
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	67569468	shares
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	61279000	USD
CY2013	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	59583000	USD
CY2012	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2234000	USD
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	5083000	USD
CY2013	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-1530000	USD
CY2012	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	33000	USD
CY2011	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	15000	USD
CY2013	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	3000	USD
CY2012	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	42642000	USD
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	66377000	USD
CY2013	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	67314859	shares
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.39
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.69
CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.88
CY2012	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	40375000	USD
CY2013	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	58056000	USD
CY2012	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	7928000	USD
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-2296000	USD
CY2013	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-1692000	USD
CY2012	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-5000	USD
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-3000	USD
CY2013	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-125000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	7923000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-2299000	USD
CY2013	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1819000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	50565000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	64078000	USD
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	56239000	USD
CY2012	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2013	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2013	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	64183000	USD
CY2012Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	340134000	USD
CY2013Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	355792000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	481287000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	504842000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	60697000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	60697000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	57511000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	52878000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	2389000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	452000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	295000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	25000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	25000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	3186000	USD
CY2013Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	3186000	USD
CY2012Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	7819000	USD
CY2012	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	55634000	USD
CY2011	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	66941000	USD
CY2012	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	4381000	USD
CY2011	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	3682000	USD
CY2013	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	4828000	USD
CY2012	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1446000	USD
CY2011	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	3302000	USD
CY2013	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-110000	USD
CY2013	us-gaap	Income Tax Reconciliation Deductions IncomeTaxReconciliationDeductions	966000	USD
CY2012	iboc	Income Tax Reconciliation Noninterest Income Other IncomeTaxReconciliationNoninterestIncomeOther	2691000	USD
CY2011	iboc	Income Tax Reconciliation Noninterest Income Other IncomeTaxReconciliationNoninterestIncomeOther	3083000	USD
CY2013	iboc	Income Tax Reconciliation Noninterest Income Other IncomeTaxReconciliationNoninterestIncomeOther	2656000	USD
CY2012	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	557000	USD
CY2011	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	600000	USD
CY2013	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	616000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	24323000	USD
CY2012Q4	iboc	Deferred Tax Assets Other Real Estate Owned DeferredTaxAssetsOtherRealEstateOwned	3919000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Impairment Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses	3611000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	137000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	5549000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	37539000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	21529000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Other Comprehensive Income DeferredTaxLiabilitiesOtherComprehensiveIncome	36156000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	18133000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	10182000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	86000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-48461000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	25365000	USD
CY2013Q4	iboc	Deferred Tax Assets Other Real Estate Owned DeferredTaxAssetsOtherRealEstateOwned	3878000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Impairment Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses	5327000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	399000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	4816000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	64020000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	20729000	USD
CY2012	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-968000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	18051000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	11476000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	50256000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	13764000	USD
CY2013Q4	us-gaap	Class Of Warrant Or Right Exercise Price Of Warrants Or Rights ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights	24.43
CY2013	iboc	Class Of Warrant Or Right Term ClassOfWarrantOrRightTerm	P10Y
CY2013	iboc	Maximum Dividend Income To Be Received From Subsidiaries MaximumDividendIncomeToBeReceivedFromSubsidiaries	584000000	USD
CY2012Q4	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	216000	shares
CY2012	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	216000000	USD
	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	41520139	USD
CY2012	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	8300000	USD
CY2013	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	7300000	USD
CY2011	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	12200000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	4330000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	2874000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	2034000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	917000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	405000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	227000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	10787000	USD
CY2013	iboc	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals Minimum Period OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsMinimumPeriod	P1Y
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentals	66500000	USD
CY2012Q4	iboc	Cash Reserve To Satisfy Regulatory Reserve Requirements CashReserveToSatisfyRegulatoryReserveRequirements	84070000	USD
CY2013Q4	iboc	Cash Reserve To Satisfy Regulatory Reserve Requirements CashReserveToSatisfyRegulatoryReserveRequirements	96087000	USD
CY2012Q4	us-gaap	Related Party Transaction Due From To Related Party RelatedPartyTransactionDueFromToRelatedParty	51102000	USD
CY2013Q4	us-gaap	Related Party Transaction Due From To Related Party RelatedPartyTransactionDueFromToRelatedParty	51554000	USD
CY2013Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	216000	shares
CY2013Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2013Q4	us-gaap	Preferred Stock Liquidation Preference PreferredStockLiquidationPreference	1000
CY2013Q4	us-gaap	Preferred Stock Liquidation Preference Value PreferredStockLiquidationPreferenceValue	216000000	USD
CY2013	iboc	Preferred Stock Dividend Rate Percentage For First Five Years PreferredStockDividendRatePercentageForFirstFiveYears	0.05	pure
CY2013	iboc	Preferred Stock Dividend Rate Percentage Thereafter PreferredStockDividendRatePercentageThereafter	0.09	pure
CY2013Q4	us-gaap	Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights	1326238	shares
CY2012	iboc	Allowance For Loan And Lease Losses Period Increase Decrease Loans Transferred To Other Real Estate Owned AllowanceForLoanAndLeaseLossesPeriodIncreaseDecreaseLoansTransferredToOtherRealEstateOwned	10450000	USD
CY2012	iboc	Allowance For Loan Lease Losses Write Offs Prior To Foreclosure AllowanceForLoanLeaseLossesWriteOffsPriorToForeclosure	0	USD
CY2013	iboc	Allowance For Loan And Lease Losses Period Increase Decrease Loans Transferred To Other Real Estate Owned AllowanceForLoanAndLeaseLossesPeriodIncreaseDecreaseLoansTransferredToOtherRealEstateOwned	402000	USD
CY2013	iboc	Allowance For Loan Lease Losses Write Offs Prior To Foreclosure AllowanceForLoanLeaseLossesWriteOffsPriorToForeclosure	1204000	USD
CY2012Q4	iboc	Impaired Financing Receivable Recorded Investment Fair Value Disclosure ImpairedFinancingReceivableRecordedInvestmentFairValueDisclosure	73646000	USD
CY2012Q4	iboc	Impaired Commercial Collateral Financing Receivable Appraisals To Determine Fair Value ImpairedCommercialCollateralFinancingReceivableAppraisalsToDetermineFairValue	48856000	USD
CY2013Q4	iboc	Impaired Financing Receivable Recorded Investment Fair Value Disclosure ImpairedFinancingReceivableRecordedInvestmentFairValueDisclosure	64585000	USD
CY2013Q4	iboc	Impaired Commercial Collateral Financing Receivable Appraisals To Determine Fair Value ImpairedCommercialCollateralFinancingReceivableAppraisalsToDetermineFairValue	50346000	USD
CY2013Q4	us-gaap	Interest Receivable InterestReceivable	30654000	USD
CY2013Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	388563000	USD
CY2013Q4	us-gaap	Goodwill Goodwill	282532000	USD
CY2013Q4	us-gaap	Other Assets OtherAssets	158862000	USD
CY2013Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	1223950000	USD
CY2013	dei	Entity Registrant Name EntityRegistrantName	INTERNATIONAL BANCSHARES CORP
CY2013	dei	Entity Central Index Key EntityCentralIndexKey	0000315709
CY2013	dei	Document Type DocumentType	10-K
CY2013	dei	Document Period End Date DocumentPeriodEndDate	2013-12-31
CY2013	dei	Amendment Flag AmendmentFlag	false
CY2013	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2013	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2013	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2013	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2013	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2013Q2	dei	Entity Public Float EntityPublicFloat	1501098000	USD
CY2014Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	67208261	shares
CY2013	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2013
CY2013	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2012Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	5525015000	USD
CY2013Q4	us-gaap	Marketable Securities MarketableSecurities	5306979000	USD
CY2012Q4	us-gaap	Marketable Securities MarketableSecurities	5527415000	USD
CY2013Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	5129074000	USD
CY2012Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	4716811000	USD
CY2012Q4	us-gaap	Interest Receivable InterestReceivable	31034000	USD
CY2012Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	372739000	USD
CY2012Q4	us-gaap	Goodwill Goodwill	282532000	USD
CY2012Q4	us-gaap	Other Assets OtherAssets	179936000	USD
CY2013Q4	us-gaap	Assets Assets	12079477000	USD
CY2013Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1.00
CY2012Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	163287000	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1369543000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	65662000	USD
CY2012Q4	us-gaap	Stockholders Equity Before Treasury Stock StockholdersEquityBeforeTreasuryStock	1694217000	USD
CY2012Q4	us-gaap	Treasury Stock Value TreasuryStockValue	258509000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	1435708000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	11882673000	USD
CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1.00
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	275000000	shares
CY2013Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	275000000	shares
CY2013Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	95743592	shares
CY2012Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	95724517	shares
CY2012Q4	us-gaap	Assets Assets	11882673000	USD
CY2012Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	749027000	USD
CY2012Q4	us-gaap	Other Liabilities OtherLiabilities	90320000	USD
CY2013Q4	us-gaap	Liabilities Liabilities	10655069000	USD
CY2012Q4	us-gaap	Liabilities Liabilities	10446965000	USD
CY2013Q4	us-gaap	Stockholders Equity Before Treasury Stock StockholdersEquityBeforeTreasuryStock	1682917000	USD
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	1424408000	USD
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	12079477000	USD
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	95725000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Other Than Temporary Impairment Not Credit Loss Net Of Tax Debt Securities AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentNotCreditLossNetOfTaxDebtSecurities	-5646000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Other Than Temporary Impairment Not Credit Loss Net Of Tax Debt Securities AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentNotCreditLossNetOfTaxDebtSecurities	-6811000	USD
CY2013Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	28537180	shares
CY2012Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	28537180	shares
CY2012	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	268588000	USD
CY2011	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	292514000	USD
CY2011	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	113650000	USD
CY2012	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	94885000	USD
CY2012	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	11663000	USD
CY2011	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	10091000	USD
CY2012	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	503000	USD
CY2011	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	1869000	USD
CY2013	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	363217000	USD
CY2012	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	375639000	USD
CY2011	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	418124000	USD
CY2012	iboc	Interest Expense Savings And Demand Deposit Accounts InterestExpenseSavingsAndDemandDepositAccounts	5288000	USD
CY2011	iboc	Interest Expense Savings And Demand Deposit Accounts InterestExpenseSavingsAndDemandDepositAccounts	7783000	USD
CY2012	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	37645000	USD
CY2011	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	42263000	USD
CY2012	iboc	Interest Expense Other Borrowings InterestExpenseOtherBorrowings	998000	USD
CY2011	iboc	Interest Expense Other Borrowings InterestExpenseOtherBorrowings	1623000	USD
CY2012	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	6595000	USD
CY2011	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	11073000	USD
CY2012	us-gaap	Interest Expense InterestExpense	74499000	USD
CY2011	us-gaap	Interest Expense InterestExpense	94298000	USD
CY2013	us-gaap	Interest Expense InterestExpense	54632000	USD
CY2013	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	308585000	USD
CY2012	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	301140000	USD
CY2011	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	323826000	USD
CY2011	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	17318000	USD
CY2013	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	285617000	USD
CY2012	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	273181000	USD
CY2011	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	306508000	USD
CY2012	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	93128000	USD
CY2011	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	97968000	USD
CY2012	us-gaap	Fees And Commissions Other FeesAndCommissionsOther	6998000	USD
CY2012	iboc	Service Charges Fees And Commissions Other Banking ServiceChargesFeesAndCommissionsOtherBanking	38523000	USD
CY2011	iboc	Service Charges Fees And Commissions Other Banking ServiceChargesFeesAndCommissionsOtherBanking	50686000	USD
CY2011	us-gaap	Fees And Commissions Other FeesAndCommissionsOther	7304000	USD
CY2012	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	38446000	USD
CY2011	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	17285000	USD
CY2012	us-gaap	Noninterest Income Other NoninterestIncomeOther	13339000	USD
CY2011	us-gaap	Noninterest Income Other NoninterestIncomeOther	16041000	USD
CY2012	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	10157000	USD
CY2011	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	12209000	USD
CY2013	us-gaap	Noninterest Income NoninterestIncome	189605000	USD
CY2012	us-gaap	Noninterest Income NoninterestIncome	200591000	USD
CY2011	us-gaap	Noninterest Income NoninterestIncome	201493000	USD
CY2012	us-gaap	Labor And Related Expense LaborAndRelatedExpense	118041000	USD
CY2011	us-gaap	Labor And Related Expense LaborAndRelatedExpense	126004000	USD
CY2012	us-gaap	Occupancy Net OccupancyNet	34608000	USD
CY2011	us-gaap	Occupancy Net OccupancyNet	38722000	USD
CY2012	us-gaap	Depreciation Nonproduction DepreciationNonproduction	26756000	USD
CY2011	us-gaap	Depreciation Nonproduction DepreciationNonproduction	34935000	USD
CY2012	us-gaap	Professional Fees ProfessionalFees	14369000	USD
CY2011	us-gaap	Professional Fees ProfessionalFees	12998000	USD
CY2012	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	7709000	USD
CY2011	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	9047000	USD
CY2012	us-gaap	Other Revenue Expense From Real Estate Operations OtherRevenueExpenseFromRealEstateOperations	-8929000	USD
CY2011	us-gaap	Other Revenue Expense From Real Estate Operations OtherRevenueExpenseFromRealEstateOperations	-14817000	USD
CY2012	us-gaap	Advertising Expense AdvertisingExpense	7017000	USD
CY2011	us-gaap	Advertising Expense AdvertisingExpense	5807000	USD
CY2012	iboc	Prepayment Penalty On Securities Sold Under Repurchase Agreement PrepaymentPenaltyOnSecuritiesSoldUnderRepurchaseAgreement	31550000	USD
CY2012	us-gaap	Other Noninterest Expense OtherNoninterestExpense	60703000	USD
CY2011	us-gaap	Other Noninterest Expense OtherNoninterestExpense	68174000	USD
CY2013	us-gaap	Noninterest Expense NoninterestExpense	292632000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	182590000	USD
CY2012	us-gaap	Noninterest Expense NoninterestExpense	315372000	USD
CY2011	us-gaap	Noninterest Expense NoninterestExpense	316774000	USD
CY2012	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	538000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	158400000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	191227000	USD
CY2013	us-gaap	Net Income Loss NetIncomeLoss	126351000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	107835000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	127149000	USD
CY2012	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	14362000	USD
CY2011	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	13280000	USD
CY2012	iboc	Other Than Temporary Impairment Losses Investment Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentPortionRecognizedInEarningsNet	916000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	123000	USD
CY2011	iboc	Other Than Temporary Impairment Losses Investment Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentPortionRecognizedInEarningsNet	1003000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-26000	USD
CY2013	iboc	Other Than Temporary Impairment Losses Investment Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentPortionRecognizedInEarningsNet	431000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-1805000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	5018000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	66782000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	24990000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	11235000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesNetOfTax	675000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesNetOfTax	635000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-109436000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-19297000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	56182000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	16915000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	88538000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	183331000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-56048000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	2701000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	35960000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-3360000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-13456000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-6050000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesTax	481000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesTax	364000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesTax	342000	USD
CY2010Q4	us-gaap	Stockholders Equity StockholdersEquity	1459217000	USD
CY2011	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	25648000	USD
CY2011	us-gaap	Dividends Preferred Stock DividendsPreferredStock	10800000	USD
CY2011	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	6435000	USD
CY2011	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	113000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	387000	USD
CY2011	iboc	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Net Of Reclassification Adjustment OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringNetOfReclassificationAdjustment	56182000	USD
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	1600165000	USD
CY2012	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	26894000	USD
CY2012	us-gaap	Dividends Preferred Stock DividendsPreferredStock	8910000	USD
CY2012	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	216000000	USD
CY2012	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1716000	USD
CY2012	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	51000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	474000	USD
CY2012	iboc	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Net Of Reclassification Adjustment OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringNetOfReclassificationAdjustment	-19297000	USD
CY2013	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	28894000	USD
CY2013	us-gaap	Interest Paid InterestPaid	56818000	USD
CY2013	us-gaap	Income Taxes Paid IncomeTaxesPaid	60532000	USD
CY2013	us-gaap	Other Real Estate Covered Valuation Adjustments OtherRealEstateCoveredValuationAdjustments	-1204000	USD
CY2013	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	265000	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	414000	USD
CY2013	iboc	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Net Of Reclassification Adjustment OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringNetOfReclassificationAdjustment	-109436000	USD
CY2011	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.38
CY2012	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.40
CY2013	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.43
CY2012	us-gaap	Preferred Stock Dividend Rate Percentage PreferredStockDividendRatePercentage	0.05	pure
CY2013	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	9688000	USD
CY2011	us-gaap	Preferred Stock Dividend Rate Percentage PreferredStockDividendRatePercentage	0.05	pure
CY2012	us-gaap	Stock Redeemed Or Called During Period Shares StockRedeemedOrCalledDuringPeriodShares	216000	shares
CY2011	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	425655	shares
CY2012	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	95466	shares
CY2012	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	10260000	USD
CY2011	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	10800000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	122218000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-323885000	USD
CY2011	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	2231330000	USD
CY2012	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1294197000	USD
CY2011	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	999419000	USD
CY2013	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	18806000	USD
CY2013	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	2533000	USD
CY2012	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	-170072000	USD
CY2011	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	-306915000	USD
CY2012	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	4228000	USD
CY2011	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	11941000	USD
CY2012	iboc	Distributions From Other Investments DistributionsFromOtherInvestments	-7410000	USD
CY2012	us-gaap	Other Real Estate Covered Valuation Adjustments OtherRealEstateCoveredValuationAdjustments	-1776000	USD
CY2011	us-gaap	Other Real Estate Covered Valuation Adjustments OtherRealEstateCoveredValuationAdjustments	-9806000	USD
CY2011	iboc	Accretion Of Time Deposit Discounts AccretionOfTimeDepositDiscounts	11000	USD
CY2011	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	361000	USD
CY2012	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-488000	USD
CY2011	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	738000	USD
CY2012	iboc	Accretion Of Discounts Investments AccretionOfDiscountsInvestments	3195000	USD
CY2011	iboc	Accretion Of Discounts Investments AccretionOfDiscountsInvestments	2081000	USD
CY2012	iboc	Amortization Of Investment Securities Premiums AmortizationOfInvestmentSecuritiesPremiums	30501000	USD
CY2011	iboc	Amortization Of Investment Securities Premiums AmortizationOfInvestmentSecuritiesPremiums	18362000	USD
CY2011	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	9000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	474000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	387000	USD
CY2012	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	9892000	USD
CY2011	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	11633000	USD
CY2011	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-3658000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	5392000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-2303000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	7106000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-4966000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	160013000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	180823000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	209126000	USD
CY2012	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	1125000	USD
CY2011	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	1425000	USD
CY2012	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	3081034000	USD
CY2011	iboc	Distributions From Other Investments DistributionsFromOtherInvestments	33320000	USD
CY2012	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	62030000	USD
CY2011	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	20393000	USD
CY2012	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	7575000	USD
CY2011	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	1719000	USD
CY2012	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	38766000	USD
CY2011	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	25324000	USD
CY2012	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	280000	USD
CY2011	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	174000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-261016000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	207133000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-447649000	USD
CY2012	iboc	Increase Decrease In Noninterest Bearing Demand Deposits IncreaseDecreaseInNoninterestBearingDemandDeposits	538732000	USD
CY2011	iboc	Increase Decrease In Noninterest Bearing Demand Deposits IncreaseDecreaseInNoninterestBearingDemandDeposits	287942000	USD
CY2012	iboc	Increase Decrease In Saving And Interest Bearing Demand Deposits IncreaseDecreaseInSavingAndInterestBearingDemandDeposits	159458000	USD
CY2011	iboc	Increase Decrease In Saving And Interest Bearing Demand Deposits IncreaseDecreaseInSavingAndInterestBearingDemandDeposits	184851000	USD
CY2012	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	-357069000	USD
CY2011	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	-126248000	USD
CY2012	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	-218950000	USD
CY2011	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	-84641000	USD
CY2012	us-gaap	Increase Decrease In Loans From Other Federal Home Loan Banks IncreaseDecreaseInLoansFromOtherFederalHomeLoanBanks	254866000	USD
CY2011	us-gaap	Increase Decrease In Loans From Other Federal Home Loan Banks IncreaseDecreaseInLoansFromOtherFederalHomeLoanBanks	-532619000	USD
CY2011	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	10400000	USD
CY2012	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1716000	USD
CY2011	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	6435000	USD
CY2012	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	51000	USD
CY2011	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	113000	USD
CY2012	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	26894000	USD
CY2011	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	25648000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	274785000	USD
CY2012	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	21215000	USD
CY2011	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	64071000	USD
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	230208000	USD
CY2013	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	-8315000	USD
CY2012	us-gaap	Interest Paid InterestPaid	77431000	USD
CY2013	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	-172298000	USD
CY2011	us-gaap	Interest Paid InterestPaid	97699000	USD
CY2012	us-gaap	Income Taxes Paid IncomeTaxesPaid	36303000	USD
CY2011	us-gaap	Income Taxes Paid IncomeTaxesPaid	60922000	USD
CY2011	iboc	Investment Securities Purchases Not Yet Settled InvestmentSecuritiesPurchasesNotYetSettled	72538000	USD
CY2012	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	54441000	USD
CY2011	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	32005000	USD
CY2011	iboc	Dividends Preferred Stock Accrued DividendsPreferredStockAccrued	1350000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	197814000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	261885000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	283100000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2013	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	0	USD
CY2013	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	0	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2012	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	0	USD
CY2011	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	0	USD
CY2012	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	0	USD
CY2011	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	0	USD
CY2013Q4	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2013	us-gaap	Goodwill Period Increase Decrease GoodwillPeriodIncreaseDecrease	0	USD
CY2012	us-gaap	Goodwill Period Increase Decrease GoodwillPeriodIncreaseDecrease	0	USD
CY2013	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	23170000	USD
CY2013Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	5304579000	USD
CY2012Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	29395000	USD
CY2013Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	20358000	USD
CY2013	us-gaap	Threshold Period Past Due For Writeoff Of Financing Receivable ThresholdPeriodPastDueForWriteoffOfFinancingReceivable	P90D
CY2013Q4	us-gaap	Other Liabilities OtherLiabilities	39587000	USD
CY2013	us-gaap	Advertising Expense AdvertisingExpense	7034000	USD
CY2013Q4	us-gaap	Common Stock Value CommonStockValue	95744000	USD
CY2013Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	163947000	USD
CY2013Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1467000000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-43774000	USD
CY2013Q4	us-gaap	Treasury Stock Value TreasuryStockValue	258509000	USD
CY2013	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	263027000	USD
CY2013	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	87198000	USD
CY2013	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	12877000	USD
CY2013	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	115000	USD
CY2013	iboc	Interest Expense Savings And Demand Deposit Accounts InterestExpenseSavingsAndDemandDepositAccounts	3762000	USD
CY2013	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	29171000	USD
CY2013	iboc	Interest Expense Other Borrowings InterestExpenseOtherBorrowings	1590000	USD
CY2013	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	4665000	USD
CY2013	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	97087000	USD
CY2013	iboc	Service Charges Fees And Commissions Other Banking ServiceChargesFeesAndCommissionsOtherBanking	41075000	USD
CY2013	us-gaap	Fees And Commissions Other FeesAndCommissionsOther	7116000	USD
CY2013	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	9601000	USD
CY2013	us-gaap	Noninterest Income Other NoninterestIncomeOther	22383000	USD
CY2013	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	12343000	USD
CY2013	us-gaap	Labor And Related Expense LaborAndRelatedExpense	119845000	USD
CY2013	us-gaap	Occupancy Net OccupancyNet	31766000	USD
CY2013	us-gaap	Depreciation Nonproduction DepreciationNonproduction	26017000	USD
CY2013	us-gaap	Professional Fees ProfessionalFees	13146000	USD
CY2013	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	6737000	USD
CY2013	us-gaap	Other Revenue Expense From Real Estate Operations OtherRevenueExpenseFromRealEstateOperations	-6896000	USD
CY2013	iboc	Prepayment Penalty On Securities Sold Under Repurchase Agreement PrepaymentPenaltyOnSecuritiesSoldUnderRepurchaseAgreement	12303000	USD
CY2013	us-gaap	Other Noninterest Expense OtherNoninterestExpense	62881000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-104088000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	6241000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesNetOfTax	893000	USD
CY2013	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	2089000	USD
CY2013	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	460000	USD
CY2013	iboc	Accretion Of Discounts Investments AccretionOfDiscountsInvestments	4025000	USD
CY2013	iboc	Amortization Of Investment Securities Premiums AmortizationOfInvestmentSecuritiesPremiums	44245000	USD
CY2013	us-gaap	Share Based Compensation ShareBasedCompensation	414000	USD
CY2013	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-380000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-20612000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-2272000	USD
CY2013	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	1200000	USD
CY2013	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	1384254000	USD
CY2013	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1223532000	USD
CY2013	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	444919000	USD
CY2013	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	2475000	USD
CY2013	iboc	Distributions From Other Investments DistributionsFromOtherInvestments	5457000	USD
CY2013	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	50016000	USD
CY2013	iboc	Increase Decrease In Noninterest Bearing Demand Deposits IncreaseDecreaseInNoninterestBearingDemandDeposits	200760000	USD
CY2013	iboc	Increase Decrease In Saving And Interest Bearing Demand Deposits IncreaseDecreaseInSavingAndInterestBearingDemandDeposits	58461000	USD
CY2013	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	-303009000	USD
CY2013	us-gaap	Increase Decrease In Loans From Other Federal Home Loan Banks IncreaseDecreaseInLoansFromOtherFederalHomeLoanBanks	474923000	USD
CY2013	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	265000	USD
CY2013	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	28894000	USD
CY2013Q4	iboc	Deferred Tax Assets Unrealized Gains On Available For Sale Securities DeferredTaxAssetsUnrealizedGainsOnAvailableForSaleSecurities	24235000	USD
CY2013Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	274785000	USD
CY2012Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	283100000	USD

Files In Submission

Name	View Source	Status
0001047469-14-001224-index-headers.html	Edgar Link	pending
0001047469-14-001224-index.html	Edgar Link	pending
0001047469-14-001224.txt	Edgar Link	pending
0001047469-14-001224-xbrl.zip	Edgar Link	pending
a2218392z10-k.htm	Edgar Link	pending
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FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
g561739.jpg	Edgar Link	pending
iboc-20131231.xml	Edgar Link	completed
iboc-20131231.xsd	Edgar Link	pending
iboc-20131231_cal.xml	Edgar Link	unprocessable
iboc-20131231_def.xml	Edgar Link	unprocessable
iboc-20131231_lab.xml	Edgar Link	unprocessable
iboc-20131231_pre.xml	Edgar Link	unprocessable
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$IBOC
INTERNATIONAL BANCSHARES CORP Stock $iboc

2013 Q4 Form 10-K Financial Statement

#000104746914001224 Filed on February 24, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$IBOC INTERNATIONAL BANCSHARES CORP Stock $iboc

2013 Q4 Form 10-K Financial Statement

#000104746914001224 Filed on February 24, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$IBOC
INTERNATIONAL BANCSHARES CORP Stock $iboc