$IBOC
International Bancshares Corp

2021 Q4 Form 10-Q Financial Statement

#000155837021014543 Filed on November 04, 2021

View on sec.gov

Income Statement

Concept 2021 Q4 2021 Q3 2020 Q3
Revenue $101.2M $99.98M
YoY Change 1.21% -19.45%
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 $5.700M $6.100M $7.000M
YoY Change -18.57% -12.86% -1.41%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense $6.682M $8.170M
YoY Change -18.21% -45.17%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income $71.20M $69.19M $53.11M
YoY Change 15.02% 30.29% -19.01%
Income Tax $14.60M $14.59M $10.37M
% Of Pretax Income 20.51% 21.09% 19.52%
Net Earnings $56.50M $54.60M $42.74M
YoY Change 17.22% 27.74% -16.92%
Net Earnings / Revenue 53.96% 42.75%
Basic Earnings Per Share $0.86 $0.68
Diluted Earnings Per Share $889.8K $0.86 $0.67
COMMON SHARES
Basic Shares Outstanding 63.37M 63.37M 63.27M
Diluted Shares Outstanding 63.50M 63.39M

Balance Sheet

Concept 2021 Q4 2021 Q3 2020 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments $4.558B
YoY Change 30.67%
Cash & Equivalents $3.209B $2.287B $1.249B
Short-Term Investments $3.308B
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment $447.1M $459.3M $486.6M
YoY Change -6.83% -5.61% -4.2%
Goodwill $282.5M $282.5M $282.5M
YoY Change 0.0% 0.0% 0.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets $16.05B $15.68B $13.59B
YoY Change 14.38% 15.35% 13.59%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt $440.0M $424.0M $376.0M
YoY Change 2.8% 12.77% 30.1%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities $440.0M $424.0M $376.0M
YoY Change 2.8% 12.77% 30.1%
LONG-TERM LIABILITIES
Long-Term Debt $135.0M $135.0M $135.0M
YoY Change 0.0% 0.0% 0.0%
Other Long-Term Liabilities $109.0M $144.0M $197.0M
YoY Change -16.15% -26.9% -4.37%
Total Long-Term Liabilities $244.0M $279.0M $332.0M
YoY Change -7.92% -15.96% -2.64%
TOTAL LIABILITIES
Total Short-Term Liabilities $440.0M $424.0M $376.0M
Total Long-Term Liabilities $244.0M $279.0M $332.0M
Total Liabilities $13.74B $13.38B $11.45B
YoY Change 15.92% 16.88% 15.69%
SHAREHOLDERS EQUITY
Retained Earnings $2.471B $2.414B $2.241B
YoY Change 7.91% 7.71% 4.31%
Common Stock $96.35M $96.34M $96.23M
YoY Change 0.11% 0.11% 0.04%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity $2.308B $2.294B $2.141B
YoY Change
Total Liabilities & Shareholders Equity $16.05B $15.68B $13.59B
YoY Change 14.38% 15.35% 13.59%

Cashflow Statement

Concept 2021 Q4 2021 Q3 2020 Q3
OPERATING ACTIVITIES
Net Income $56.50M $54.60M $42.74M
YoY Change 17.22% 27.74% -16.92%
Depreciation, Depletion And Amortization $5.700M $6.100M $7.000M
YoY Change -18.57% -12.86% -1.41%
Cash From Operating Activities $67.30M $58.40M $78.30M
YoY Change -25.47% -25.42% -8.74%
INVESTING ACTIVITIES
Capital Expenditures -$4.300M -$1.800M -$1.600M
YoY Change 760.0% 12.5% -82.98%
Acquisitions
YoY Change
Other Investing Activities $469.7M -$418.8M -$285.2M
YoY Change 108.48% 46.84% -225.97%
Cash From Investing Activities $465.4M -$420.6M -$286.8M
YoY Change 107.03% 46.65% -232.17%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities 389.3M 322.6M 259.7M
YoY Change -10.03% 24.22% -176.99%
NET CHANGE
Cash From Operating Activities 67.30M 58.40M 78.30M
Cash From Investing Activities 465.4M -420.6M -286.8M
Cash From Financing Activities 389.3M 322.6M 259.7M
Net Change In Cash 922.0M -39.60M 51.20M
YoY Change 23.29% -177.34% -248.41%
FREE CASH FLOW
Cash From Operating Activities $67.30M $58.40M $78.30M
Capital Expenditures -$4.300M -$1.800M -$1.600M
Free Cash Flow $71.60M $60.20M $79.90M
YoY Change -21.15% -24.66% -16.07%

Facts In Submission

Frame Concept Type Concept / XBRL Key Value Unit
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EntitySmallBusiness
false
dei Entity Central Index Key
EntityCentralIndexKey
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dei Current Fiscal Year End Date
CurrentFiscalYearEndDate
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dei Document Fiscal Year Focus
DocumentFiscalYearFocus
2021
dei Document Fiscal Period Focus
DocumentFiscalPeriodFocus
Q3
dei Amendment Flag
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false
dei Document Type
DocumentType
10-Q
dei Document Quarterly Report
DocumentQuarterlyReport
true
dei Document Period End Date
DocumentPeriodEndDate
2021-09-30
dei Document Transition Report
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false
dei Entity File Number
EntityFileNumber
000-09439
dei Entity Registrant Name
EntityRegistrantName
INTERNATIONAL BANCSHARES CORPORATION
dei Entity Incorporation State Country Code
EntityIncorporationStateCountryCode
TX
dei Entity Tax Identification Number
EntityTaxIdentificationNumber
74-2157138
dei Entity Address Address Line1
EntityAddressAddressLine1
1200 San Bernardo Avenue
dei Entity Address City Or Town
EntityAddressCityOrTown
Laredo
dei Entity Address State Or Province
EntityAddressStateOrProvince
TX
dei Entity Address Postal Zip Code
EntityAddressPostalZipCode
78042-1359
dei City Area Code
CityAreaCode
956
dei Local Phone Number
LocalPhoneNumber
722-7611
dei Security12b Title
Security12bTitle
Common Stock, $1.00 par value
dei Trading Symbol
TradingSymbol
IBOC
dei Security Exchange Name
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CY2020Q3 us-gaap Noninterest Expense
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us-gaap Noninterest Expense
NoninterestExpense
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us-gaap Noninterest Expense
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IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
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CY2020Q3 us-gaap Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
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us-gaap Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
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us-gaap Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
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CY2021Q3 us-gaap Income Tax Expense Benefit
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CY2020Q3 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
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us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
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us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
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CY2021Q3 us-gaap Net Income Loss
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CY2020Q3 us-gaap Net Income Loss
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us-gaap Net Income Loss
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us-gaap Net Income Loss
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CY2021Q3 us-gaap Weighted Average Number Of Shares Outstanding Basic
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CY2020Q3 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
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us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
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us-gaap Weighted Average Number Of Shares Outstanding Basic
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CY2020Q3 us-gaap Earnings Per Share Basic
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us-gaap Earnings Per Share Basic
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us-gaap Earnings Per Share Basic
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CY2021Q3 us-gaap Weighted Average Number Of Diluted Shares Outstanding
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CY2020Q3 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
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us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
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us-gaap Weighted Average Number Of Diluted Shares Outstanding
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CY2021Q3 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
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CY2020Q3 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
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us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
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us-gaap Earnings Per Share Diluted
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CY2020Q3 us-gaap Net Income Loss
NetIncomeLoss
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us-gaap Net Income Loss
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us-gaap Net Income Loss
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CY2020Q3 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
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us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
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us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
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CY2021Q3 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
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CY2020Q3 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
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us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
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us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
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CY2021Q3 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax
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CY2020Q3 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
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us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
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us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
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CY2021Q3 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
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us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
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us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
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CY2021Q3 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
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CY2020Q3 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
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us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
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us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
30073000
CY2021Q3 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
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CY2020Q3 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
33841000
us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
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us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
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CY2021Q2 us-gaap Stockholders Equity
StockholdersEquity
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CY2021Q3 us-gaap Net Income Loss
NetIncomeLoss
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CY2021Q3 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
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CY2021Q3 us-gaap Dividends Common Stock Cash
DividendsCommonStockCash
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CY2021Q3 us-gaap Treasury Stock Shares Acquired
TreasuryStockSharesAcquired
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CY2021Q3 us-gaap Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
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CY2021Q3 us-gaap Stock Issued During Period Value Stock Options Exercised
StockIssuedDuringPeriodValueStockOptionsExercised
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CY2021Q3 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
118000
CY2021Q3 iboc Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Net Of Reclassification Adjustment
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringNetOfReclassificationAdjustment
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us-gaap Treasury Stock Shares Acquired
TreasuryStockSharesAcquired
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CY2021Q3 us-gaap Stockholders Equity
StockholdersEquity
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CY2020Q2 us-gaap Stockholders Equity
StockholdersEquity
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CY2020Q3 us-gaap Net Income Loss
NetIncomeLoss
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CY2020Q3 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
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CY2020Q3 us-gaap Dividends Common Stock Cash
DividendsCommonStockCash
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CY2020Q3 us-gaap Treasury Stock Shares Acquired
TreasuryStockSharesAcquired
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CY2020Q3 us-gaap Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
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CY2020Q3 us-gaap Stock Issued During Period Value Stock Options Exercised
StockIssuedDuringPeriodValueStockOptionsExercised
119000
CY2020Q3 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
176000
CY2020Q3 iboc Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Net Of Reclassification Adjustment
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringNetOfReclassificationAdjustment
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CY2020Q3 us-gaap Stockholders Equity
StockholdersEquity
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CY2020Q4 us-gaap Stockholders Equity
StockholdersEquity
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us-gaap Net Income Loss
NetIncomeLoss
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us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
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us-gaap Dividends Common Stock Cash
DividendsCommonStockCash
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us-gaap Treasury Stock Shares Acquired
TreasuryStockSharesAcquired
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us-gaap Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
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us-gaap Stock Issued During Period Value Stock Options Exercised
StockIssuedDuringPeriodValueStockOptionsExercised
2232000
us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
391000
iboc Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Net Of Reclassification Adjustment
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringNetOfReclassificationAdjustment
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CY2021Q3 us-gaap Stockholders Equity
StockholdersEquity
2294372000
CY2019Q4 us-gaap Stockholders Equity
StockholdersEquity
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us-gaap Net Income Loss
NetIncomeLoss
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us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
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us-gaap Dividends Common Stock Cash
DividendsCommonStockCash
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us-gaap Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
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us-gaap Stock Issued During Period Value Stock Options Exercised
StockIssuedDuringPeriodValueStockOptionsExercised
407000
us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
571000
iboc Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Net Of Reclassification Adjustment
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringNetOfReclassificationAdjustment
30073000
CY2020Q3 us-gaap Stockholders Equity
StockholdersEquity
2141055000
us-gaap Profit Loss
ProfitLoss
197396000
us-gaap Profit Loss
ProfitLoss
119090000
us-gaap Provision For Loan Losses Expensed
ProvisionForLoanLossesExpensed
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us-gaap Provision For Loan Losses Expensed
ProvisionForLoanLossesExpensed
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us-gaap Other Real Estate Covered Valuation Adjustments
OtherRealEstateCoveredValuationAdjustments
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us-gaap Other Real Estate Covered Valuation Adjustments
OtherRealEstateCoveredValuationAdjustments
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us-gaap Depreciation Nonproduction
DepreciationNonproduction
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us-gaap Depreciation Nonproduction
DepreciationNonproduction
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us-gaap Gain Loss On Sale Of Property Plant Equipment
GainLossOnSaleOfPropertyPlantEquipment
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us-gaap Gain Loss On Sale Of Property Plant Equipment
GainLossOnSaleOfPropertyPlantEquipment
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us-gaap Gains Losses On Sales Of Other Real Estate
GainsLossesOnSalesOfOtherRealEstate
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us-gaap Gains Losses On Sales Of Other Real Estate
GainsLossesOnSalesOfOtherRealEstate
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iboc Accretion Of Discounts Investments
AccretionOfDiscountsInvestments
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iboc Accretion Of Discounts Investments
AccretionOfDiscountsInvestments
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iboc Amortization Of Investment Securities Premiums
AmortizationOfInvestmentSecuritiesPremiums
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iboc Amortization Of Investment Securities Premiums
AmortizationOfInvestmentSecuritiesPremiums
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us-gaap Debt And Equity Securities Gain Loss
DebtAndEquitySecuritiesGainLoss
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us-gaap Debt And Equity Securities Gain Loss
DebtAndEquitySecuritiesGainLoss
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us-gaap Equity Securities Fv Ni Unrealized Gain Loss
EquitySecuritiesFvNiUnrealizedGainLoss
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us-gaap Equity Securities Fv Ni Unrealized Gain Loss
EquitySecuritiesFvNiUnrealizedGainLoss
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us-gaap Proceeds From Insurance Settlement Operating Activities
ProceedsFromInsuranceSettlementOperatingActivities
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us-gaap Share Based Compensation
ShareBasedCompensation
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us-gaap Share Based Compensation
ShareBasedCompensation
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us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
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us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
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us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
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us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
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us-gaap Increase Decrease In Accrued Interest Receivable Net
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IncreaseDecreaseInOtherOperatingAssets
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us-gaap Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
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us-gaap Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
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us-gaap Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
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us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
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us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
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ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments
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us-gaap Proceeds From Maturities Prepayments And Calls Of Other Investments
ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments
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us-gaap Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
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us-gaap Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
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us-gaap Payments To Acquire Available For Sale Securities Debt
PaymentsToAcquireAvailableForSaleSecuritiesDebt
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us-gaap Payments To Acquire Available For Sale Securities Debt
PaymentsToAcquireAvailableForSaleSecuritiesDebt
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us-gaap Proceeds From Maturities Prepayments And Calls Of Mortgage Backed Securities Mbs
ProceedsFromMaturitiesPrepaymentsAndCallsOfMortgageBackedSecuritiesMBS
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us-gaap Proceeds From Maturities Prepayments And Calls Of Mortgage Backed Securities Mbs
ProceedsFromMaturitiesPrepaymentsAndCallsOfMortgageBackedSecuritiesMBS
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us-gaap Payments For Proceeds From Loans And Leases
PaymentsForProceedsFromLoansAndLeases
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us-gaap Payments For Proceeds From Loans And Leases
PaymentsForProceedsFromLoansAndLeases
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PaymentsToAcquireOtherInvestments
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us-gaap Payments To Acquire Other Investments
PaymentsToAcquireOtherInvestments
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iboc Distributions From Other Investments
DistributionsFromOtherInvestments
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iboc Distributions From Other Investments
DistributionsFromOtherInvestments
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us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
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us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
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us-gaap Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
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us-gaap Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
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us-gaap Proceeds From Sale Of Other Real Estate
ProceedsFromSaleOfOtherRealEstate
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us-gaap Proceeds From Sale Of Other Real Estate
ProceedsFromSaleOfOtherRealEstate
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us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
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us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
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iboc Increase Decrease In Noninterest Bearing Demand Deposits
IncreaseDecreaseInNoninterestBearingDemandDeposits
880951000
iboc Increase Decrease In Noninterest Bearing Demand Deposits
IncreaseDecreaseInNoninterestBearingDemandDeposits
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iboc Increase Decrease In Saving And Interest Bearing Demand Deposits
IncreaseDecreaseInSavingAndInterestBearingDemandDeposits
608052000
iboc Increase Decrease In Saving And Interest Bearing Demand Deposits
IncreaseDecreaseInSavingAndInterestBearingDemandDeposits
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us-gaap Increase Decrease In Time Deposits
IncreaseDecreaseInTimeDeposits
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us-gaap Increase Decrease In Time Deposits
IncreaseDecreaseInTimeDeposits
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us-gaap Proceeds From Payments For In Securities Sold Under Agreements To Repurchase
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us-gaap Proceeds From Payments For In Securities Sold Under Agreements To Repurchase
ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase
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us-gaap Increase Decrease In Loans From Other Federal Home Loan Banks
IncreaseDecreaseInLoansFromOtherFederalHomeLoanBanks
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us-gaap Increase Decrease In Loans From Other Federal Home Loan Banks
IncreaseDecreaseInLoansFromOtherFederalHomeLoanBanks
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us-gaap Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
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us-gaap Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
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us-gaap Proceeds From Issuance Or Sale Of Equity
ProceedsFromIssuanceOrSaleOfEquity
2232000
us-gaap Proceeds From Issuance Or Sale Of Equity
ProceedsFromIssuanceOrSaleOfEquity
407000
us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
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us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
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us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
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us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
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CY2019Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
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us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
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us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
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CY2021Q3 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
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CY2021Q3 iboc Impaired Collateral Dependent Commercial Loans With Internal Evaluation Completed Within Last Twelve Months
ImpairedCollateralDependentCommercialLoansWithInternalEvaluationCompletedWithinLastTwelveMonths
815000
CY2020Q4 iboc Impaired Financing Receivable Recorded Investment Fair Value Disclosure
ImpairedFinancingReceivableRecordedInvestmentFairValueDisclosure
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CY2020Q4 iboc Impaired Commercial Collateral Financing Receivable Appraisals To Determine Fair Value
ImpairedCommercialCollateralFinancingReceivableAppraisalsToDetermineFairValue
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CY2020Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
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CY2020Q3 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
1249396000
CY2021Q3 iboc Impaired Financing Receivable Recorded Investment Fair Value Disclosure
ImpairedFinancingReceivableRecordedInvestmentFairValueDisclosure
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CY2021Q3 iboc Impaired Commercial Collateral Financing Receivable Appraisals To Determine Fair Value
ImpairedCommercialCollateralFinancingReceivableAppraisalsToDetermineFairValue
0
us-gaap Interest Paid Net
InterestPaidNet
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us-gaap Interest Paid Net
InterestPaidNet
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us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
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us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
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us-gaap Transfer To Other Real Estate
TransferToOtherRealEstate
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us-gaap Transfer To Other Real Estate
TransferToOtherRealEstate
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CY2020Q3 us-gaap Dividends Payable Current And Noncurrent
DividendsPayableCurrentAndNoncurrent
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iboc Transfer From Bank Premise And Equipment To Other Assets
TransferFromBankPremiseAndEquipmentToOtherAssets
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us-gaap Number Of Operating Segments
NumberOfOperatingSegments
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iboc Number Of Active Operating Subsidiaries
NumberOfActiveOperatingSubsidiaries
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CY2020Q4 iboc Impaired Collateral Dependent Commercial Loans With Internal Evaluation Completed Within Last Twelve Months
ImpairedCollateralDependentCommercialLoansWithInternalEvaluationCompletedWithinLastTwelveMonths
1283000
CY2021Q3 iboc Allowance For Loan And Lease Losses Period Increase Decrease Loans Transferred To Other Real Estate Owned
AllowanceForLoanAndLeaseLossesPeriodIncreaseDecreaseLoansTransferredToOtherRealEstateOwned
2
iboc Allowance For Loan And Lease Losses Period Increase Decrease Loans Transferred To Other Real Estate Owned
AllowanceForLoanAndLeaseLossesPeriodIncreaseDecreaseLoansTransferredToOtherRealEstateOwned
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CY2020 iboc Allowance For Loan And Lease Losses Period Increase Decrease Loans Transferred To Other Real Estate Owned
AllowanceForLoanAndLeaseLossesPeriodIncreaseDecreaseLoansTransferredToOtherRealEstateOwned
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CY2021Q3 iboc Allowance For Loan Lease Losses Write Offs Prior To Foreclosure
AllowanceForLoanLeaseLossesWriteOffsPriorToForeclosure
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iboc Allowance For Loan Lease Losses Write Offs Prior To Foreclosure
AllowanceForLoanLeaseLossesWriteOffsPriorToForeclosure
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CY2020 iboc Allowance For Loan Lease Losses Write Offs Prior To Foreclosure
AllowanceForLoanLeaseLossesWriteOffsPriorToForeclosure
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CY2021Q3 us-gaap Notes Receivable Gross
NotesReceivableGross
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CY2020Q4 us-gaap Notes Receivable Gross
NotesReceivableGross
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CY2021Q2 us-gaap Financing Receivable Allowance For Credit Losses
FinancingReceivableAllowanceForCreditLosses
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CY2021Q3 us-gaap Financing Receivable Allowance For Credit Losses Write Offs
FinancingReceivableAllowanceForCreditLossesWriteOffs
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CY2021Q3 us-gaap Financing Receivable Allowance For Credit Losses Recovery
FinancingReceivableAllowanceForCreditLossesRecovery
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CY2021Q3 us-gaap Financing Receivable Allowance For Credit Loss Writeoff After Recovery
FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery
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CY2021Q3 us-gaap Provision For Loan Losses Expensed
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CY2021Q3 us-gaap Financing Receivable Allowance For Credit Losses
FinancingReceivableAllowanceForCreditLosses
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CY2020Q2 us-gaap Financing Receivable Allowance For Credit Losses
FinancingReceivableAllowanceForCreditLosses
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CY2020Q3 us-gaap Financing Receivable Allowance For Credit Losses Write Offs
FinancingReceivableAllowanceForCreditLossesWriteOffs
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CY2020Q3 us-gaap Financing Receivable Allowance For Credit Losses Recovery
FinancingReceivableAllowanceForCreditLossesRecovery
728000
CY2020Q3 us-gaap Financing Receivable Allowance For Credit Loss Writeoff After Recovery
FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery
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CY2020Q3 us-gaap Provision For Loan Losses Expensed
ProvisionForLoanLossesExpensed
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CY2020Q3 us-gaap Financing Receivable Allowance For Credit Losses
FinancingReceivableAllowanceForCreditLosses
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CY2020Q4 us-gaap Financing Receivable Allowance For Credit Losses
FinancingReceivableAllowanceForCreditLosses
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us-gaap Financing Receivable Allowance For Credit Losses Write Offs
FinancingReceivableAllowanceForCreditLossesWriteOffs
6631000
us-gaap Financing Receivable Allowance For Credit Losses Recovery
FinancingReceivableAllowanceForCreditLossesRecovery
1760000
us-gaap Financing Receivable Allowance For Credit Loss Writeoff After Recovery
FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery
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us-gaap Provision For Loan Losses Expensed
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CY2021Q3 us-gaap Financing Receivable Allowance For Credit Losses
FinancingReceivableAllowanceForCreditLosses
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CY2019Q4 us-gaap Financing Receivable Allowance For Credit Losses
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FinancingReceivableAllowanceForCreditLossesWriteOffs
7209000
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FinancingReceivableAllowanceForCreditLossesRecovery
2154000
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36595000
CY2020Q3 us-gaap Financing Receivable Allowance For Credit Losses
FinancingReceivableAllowanceForCreditLosses
102165000
CY2021Q3 us-gaap Financing Receivable Individually Evaluated For Impairment
FinancingReceivableIndividuallyEvaluatedForImpairment
1650000
CY2021Q3 us-gaap Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1
FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
99000
CY2021Q3 us-gaap Financing Receivable Collectively Evaluated For Impairment
FinancingReceivableCollectivelyEvaluatedForImpairment
7402508000
CY2021Q3 us-gaap Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment
FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
109226000
CY2020Q4 us-gaap Financing Receivable Individually Evaluated For Impairment
FinancingReceivableIndividuallyEvaluatedForImpairment
19447000
CY2020Q4 us-gaap Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1
FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
279000
CY2020Q4 us-gaap Financing Receivable Collectively Evaluated For Impairment
FinancingReceivableCollectivelyEvaluatedForImpairment
7522307000
CY2020Q4 us-gaap Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment
FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
108780000
CY2021Q3 us-gaap Financing Receivable Recorded Investment Nonaccrual Status
FinancingReceivableRecordedInvestmentNonaccrualStatus
1903000
CY2020Q4 us-gaap Financing Receivable Recorded Investment Nonaccrual Status
FinancingReceivableRecordedInvestmentNonaccrualStatus
19822000
CY2021Q3 us-gaap Financing Receivable Modifications Recorded Investment
FinancingReceivableModificationsRecordedInvestment
2919000
CY2020Q4 us-gaap Financing Receivable Modifications Recorded Investment
FinancingReceivableModificationsRecordedInvestment
5821000
CY2020Q4 us-gaap Financing Receivable Originated In Fiscal Year Before Latest Fiscal Year
FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear
3601680000
CY2020Q4 us-gaap Financing Receivable Originated Two Years Before Latest Fiscal Year
FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear
1627511000
CY2021Q4 iboc Financing Receivable With Payment Deferrals
FinancingReceivableWithPaymentDeferrals
226831000
CY2021Q4 iboc Financing Receivable With Payment Deferrals
FinancingReceivableWithPaymentDeferrals
226831000
CY2021Q3 us-gaap Financing Receivable Threshold Period Past Due Writeoff
FinancingReceivableThresholdPeriodPastDueWriteoff
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CY2021Q3 us-gaap Financing Receivable Recorded Investment90 Days Past Due And Still Accruing
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7072000
CY2021Q3 us-gaap Notes Receivable Gross
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8238000
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7541754000
CY2021Q3 us-gaap Financing Receivable Originated In Current Fiscal Year
FinancingReceivableOriginatedInCurrentFiscalYear
2623804000
CY2021Q3 us-gaap Financing Receivable Originated In Fiscal Year Before Latest Fiscal Year
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2065068000
CY2021Q3 us-gaap Financing Receivable Originated Two Years Before Latest Fiscal Year
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1119851000
CY2021Q3 us-gaap Financing Receivable Originated Three Years Before Latest Fiscal Year
FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear
821429000
CY2021Q3 us-gaap Financing Receivable Originated Four Years Before Latest Fiscal Year
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429875000
CY2021Q3 us-gaap Financing Receivable Originated Five Or More Years Before Latest Fiscal Year
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344131000
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FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear
1087031000
CY2020Q4 us-gaap Financing Receivable Originated Four Years Before Latest Fiscal Year
FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear
556923000
CY2020Q4 us-gaap Financing Receivable Originated Five Or More Years Before Latest Fiscal Year
FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear
327336000
CY2020Q4 iboc Financing Receivable Originated More Than Six Years Before Current Fiscal Year
FinancingReceivableOriginatedMoreThanSixYearsBeforeCurrentFiscalYear
341273000
CY2020Q4 us-gaap Notes Receivable Gross
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7541754000
CY2021Q3 us-gaap Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment
HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment
3400000
CY2021Q3 us-gaap Held To Maturity Securities Fair Value
HeldToMaturitySecuritiesFairValue
3400000
CY2021Q3 us-gaap Debt Securities Held To Maturity Amortized Cost After Allowance For Credit Loss
DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss
3400000
CY2021Q3 iboc Equity Securities And Available For Sale Debt Securities Amortized Cost Basis
EquitySecuritiesAndAvailableForSaleDebtSecuritiesAmortizedCostBasis
4540752000
CY2021Q3 iboc Equity Securities And Available For Sale Debt Securities Gross Unrealized Gains
EquitySecuritiesAndAvailableForSaleDebtSecuritiesGrossUnrealizedGains
24805000
CY2021Q3 iboc Equity Securities And Available For Sale Debt Securities Gross Unrealized Losses
EquitySecuritiesAndAvailableForSaleDebtSecuritiesGrossUnrealizedLosses
11243000
CY2020Q4 us-gaap Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment
HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment
3400000
CY2020Q4 us-gaap Held To Maturity Securities Fair Value
HeldToMaturitySecuritiesFairValue
3400000
CY2020Q4 us-gaap Debt Securities Held To Maturity Amortized Cost After Allowance For Credit Loss
DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss
3400000
CY2020Q4 iboc Equity Securities And Available For Sale Debt Securities Amortized Cost Basis
EquitySecuritiesAndAvailableForSaleDebtSecuritiesAmortizedCostBasis
3054289000
CY2020Q4 iboc Equity Securities And Available For Sale Debt Securities Gross Unrealized Gains
EquitySecuritiesAndAvailableForSaleDebtSecuritiesGrossUnrealizedGains
35832000
CY2020Q4 iboc Equity Securities And Available For Sale Debt Securities Gross Unrealized Losses
EquitySecuritiesAndAvailableForSaleDebtSecuritiesGrossUnrealizedLosses
9353000
CY2021Q3 us-gaap Heldtomaturity Securities Debt Maturities Next Rolling Twelve Months Amortized Cost
HeldtomaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCost
2200000
CY2021Q3 us-gaap Held To Maturity Securities Debt Maturities Next Rolling Twelve Months Fair Value
HeldToMaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue
2200000
CY2021Q3 us-gaap Heldtomaturity Securities Debt Maturities Rolling Year Two Through Five Amortized Cost
HeldtomaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCost
1200000
CY2021Q3 us-gaap Held To Maturity Securities Debt Maturities Rolling Year Two Through Five Fair Value
HeldToMaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue
1200000
CY2021Q3 us-gaap Available For Sale Securities Debt Maturities Rolling After Year Ten Amortized Cost Basis
AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis
41583000
CY2021Q3 us-gaap Available For Sale Securities Debt Maturities Rolling After Year Ten Fair Value
AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue
44671000
CY2021Q3 us-gaap Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost
4499169000
CY2021Q3 us-gaap Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value
AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue
4509643000
CY2021Q3 us-gaap Debt Securities Held To Maturity Amortized Cost After Allowance For Credit Loss
DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss
3400000
CY2021Q3 us-gaap Held To Maturity Securities Fair Value
HeldToMaturitySecuritiesFairValue
3400000
CY2021Q3 us-gaap Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
4540752000
CY2021Q3 us-gaap Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
4554314000
CY2021Q3 us-gaap Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
3025000
us-gaap Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
5890000
CY2021Q3 us-gaap Proceeds From Sale Of Mortgage Backed Securities Mbs Categorized As Available For Sale
ProceedsFromSaleOfMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale
0
us-gaap Proceeds From Sale Of Mortgage Backed Securities Mbs Categorized As Available For Sale
ProceedsFromSaleOfMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale
0
CY2021Q3 us-gaap Debt Securities Available For Sale Realized Gain
DebtSecuritiesAvailableForSaleRealizedGain
0
us-gaap Debt Securities Available For Sale Realized Gain
DebtSecuritiesAvailableForSaleRealizedGain
0
CY2021Q3 us-gaap Debt Securities Available For Sale Realized Loss
DebtSecuritiesAvailableForSaleRealizedLoss
-12000
us-gaap Debt Securities Available For Sale Realized Loss
DebtSecuritiesAvailableForSaleRealizedLoss
-16000
CY2020Q3 us-gaap Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
9875000
us-gaap Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
28795000
CY2020Q3 us-gaap Proceeds From Sale Of Mortgage Backed Securities Mbs Categorized As Available For Sale
ProceedsFromSaleOfMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale
0
us-gaap Proceeds From Sale Of Mortgage Backed Securities Mbs Categorized As Available For Sale
ProceedsFromSaleOfMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale
0
CY2020Q3 us-gaap Debt Securities Available For Sale Realized Gain
DebtSecuritiesAvailableForSaleRealizedGain
0
us-gaap Debt Securities Available For Sale Realized Gain
DebtSecuritiesAvailableForSaleRealizedGain
0
CY2020Q3 us-gaap Debt Securities Available For Sale Realized Loss
DebtSecuritiesAvailableForSaleRealizedLoss
0
us-gaap Debt Securities Available For Sale Realized Loss
DebtSecuritiesAvailableForSaleRealizedLoss
-5000
CY2021Q3 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months
2448908000
CY2021Q3 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
10355000
CY2021Q3 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger
276364000
CY2021Q3 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
888000
CY2021Q3 us-gaap Debt Securities Available For Sale Unrealized Loss Position
DebtSecuritiesAvailableForSaleUnrealizedLossPosition
2725272000
CY2021Q3 us-gaap Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss
DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss
11243000
CY2020Q4 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months
1462232000
CY2020Q4 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
9339000
CY2020Q4 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger
757000
CY2020Q4 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
14000
CY2020Q4 us-gaap Debt Securities Available For Sale Unrealized Loss Position
DebtSecuritiesAvailableForSaleUnrealizedLossPosition
1462989000
CY2020Q4 us-gaap Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss
DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss
9353000
CY2021Q3 us-gaap Equity Securities Fv Ni Current And Noncurrent
EquitySecuritiesFvNiCurrentAndNoncurrent
6132000
CY2020Q4 us-gaap Equity Securities Fv Ni Current And Noncurrent
EquitySecuritiesFvNiCurrentAndNoncurrent
6202000
CY2021Q3 us-gaap Equity Securities Fv Ni Gain Loss
EquitySecuritiesFvNiGainLoss
-5000
CY2021Q3 us-gaap Equity Securities Fv Ni Unrealized Gain Loss
EquitySecuritiesFvNiUnrealizedGainLoss
-5000
us-gaap Equity Securities Fv Ni Gain Loss
EquitySecuritiesFvNiGainLoss
-70000
us-gaap Equity Securities Fv Ni Unrealized Gain Loss
EquitySecuritiesFvNiUnrealizedGainLoss
-70000
CY2020Q3 us-gaap Equity Securities Fv Ni Gain Loss
EquitySecuritiesFvNiGainLoss
-12000
CY2020Q3 us-gaap Equity Securities Fv Ni Unrealized Gain Loss
EquitySecuritiesFvNiUnrealizedGainLoss
-12000
us-gaap Equity Securities Fv Ni Gain Loss
EquitySecuritiesFvNiGainLoss
87000
us-gaap Equity Securities Fv Ni Unrealized Gain Loss
EquitySecuritiesFvNiUnrealizedGainLoss
87000
CY2021Q3 us-gaap Advances From Federal Home Loan Banks
AdvancesFromFederalHomeLoanBanks
436186000
CY2020Q4 us-gaap Advances From Federal Home Loan Banks
AdvancesFromFederalHomeLoanBanks
436327000
iboc Number Of Statutory Business Trusts Issuing Preferred Securities
NumberOfStatutoryBusinessTrustsIssuingPreferredSecurities
5
iboc Number Of Statutory Business Trusts Issuing Preferred Securities
NumberOfStatutoryBusinessTrustsIssuingPreferredSecurities
5
CY2021Q3 us-gaap Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust
JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust
134642000
CY2020Q4 us-gaap Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust
JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust
134642000
iboc Maximum Number Of Consecutive Quarterly Periods Available For Deferral Of Payment Of Interest
MaximumNumberOfConsecutiveQuarterlyPeriodsAvailableForDeferralOfPaymentOfInterest
20
iboc Maximum Percentage Of Capital Securities Issued By Trust Qualifying As Tier One Capital
MaximumPercentageOfCapitalSecuritiesIssuedByTrustQualifyingAsTierOneCapital
0.25
iboc Minimum Percentage Of Capital Securities Issued By Trust Qualifying As Tier Two Capital
MinimumPercentageOfCapitalSecuritiesIssuedByTrustQualifyingAsTierTwoCapital
0.25
CY2021Q3 iboc Capital Securities Issued By Trust Qualifying As Tier One Capital
CapitalSecuritiesIssuedByTrustQualifyingAsTierOneCapital
134642000
CY2020Q4 iboc Capital Securities Issued By Trust Qualifying As Tier One Capital
CapitalSecuritiesIssuedByTrustQualifyingAsTierOneCapital
134642000
CY2021Q3 us-gaap Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust
JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust
134642000
CY2021Q1 us-gaap Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
0.60
CY2021Q3 us-gaap Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
0.55
CY2020Q2 us-gaap Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
0.55
CY2020Q4 us-gaap Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
0.55
CY2009Q2 us-gaap Stock Repurchase Program Authorized Amount1
StockRepurchaseProgramAuthorizedAmount1
40000000
us-gaap Stock Repurchased During Period Shares
StockRepurchasedDuringPeriodShares
12285114
us-gaap Stock Repurchased During Period Value
StockRepurchasedDuringPeriodValue
357759000
CY2009Q2 us-gaap Stock Repurchase Program Period In Force1
StockRepurchaseProgramPeriodInForce1
P12M
CY2021Q1 us-gaap Stock Repurchase Program Authorized Amount1
StockRepurchaseProgramAuthorizedAmount1
50000000
CY2021Q1 us-gaap Stock Repurchase Program Period In Force1
StockRepurchaseProgramPeriodInForce1
P12M
CY2020Q4 us-gaap Capital To Risk Weighted Assets
CapitalToRiskWeightedAssets
21.40
iboc Maximum Percentage Of Capital Securities Issued By Trust Qualifying As Tier One Capital
MaximumPercentageOfCapitalSecuritiesIssuedByTrustQualifyingAsTierOneCapital
0.25
iboc Minimum Percentage Of Capital Securities Issued By Trust Qualifying As Tier Two Capital
MinimumPercentageOfCapitalSecuritiesIssuedByTrustQualifyingAsTierTwoCapital
0.25
CY2021Q3 us-gaap Common Equity Tier One Capital Ratio
CommonEquityTierOneCapitalRatio
19.64
CY2020Q4 us-gaap Common Equity Tier One Capital Ratio
CommonEquityTierOneCapitalRatio
19.05
CY2021Q3 us-gaap Tier One Leverage Capital To Average Assets
TierOneLeverageCapitalToAverageAssets
13.89
CY2020Q4 us-gaap Tier One Leverage Capital To Average Assets
TierOneLeverageCapitalToAverageAssets
14.92
CY2021Q3 us-gaap Tier One Risk Based Capital To Risk Weighted Assets
TierOneRiskBasedCapitalToRiskWeightedAssets
20.76
CY2020Q4 us-gaap Tier One Risk Based Capital To Risk Weighted Assets
TierOneRiskBasedCapitalToRiskWeightedAssets
20.25
CY2021Q3 us-gaap Capital To Risk Weighted Assets
CapitalToRiskWeightedAssets
21.86
CY2021Q3 us-gaap Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust
JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust
134642000

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