$IBOC
INTERNATIONAL BANCSHARES CORP

2024 Q2 Form 10-Q Financial Statement

#000155837024006529 Filed on May 02, 2024

View on sec.gov

Income Statement

Concept 2024 Q2 2024 Q1
Revenue $215.7M $212.1M
YoY Change 8.86% 12.72%
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 $5.715M $5.629M
YoY Change 5.68% 2.98%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense $48.48M
YoY Change 111.12%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income $124.9M $123.2M
YoY Change -2.3% -4.42%
Income Tax $27.89M $25.90M
% Of Pretax Income 22.34% 21.02%
Net Earnings $96.98M $97.33M
YoY Change -3.49% -4.24%
Net Earnings / Revenue 44.97% 45.89%
Basic Earnings Per Share $1.56 $1.57
Diluted Earnings Per Share $1.56 $1.56
COMMON SHARES
Basic Shares Outstanding 62.18M 62.17M
Diluted Shares Outstanding 62.29M 62.27M

Balance Sheet

Concept 2024 Q2 2024 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents $792.2M $909.0M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment $434.4M $438.0M
YoY Change 0.88% 1.76%
Goodwill $282.5M $282.5M
YoY Change 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 $15.49B $15.36B
YoY Change 4.29% 1.49%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt $611.6M $585.0M
YoY Change 38.42% 52.53%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities $611.6M $585.0M
YoY Change 38.42% 52.53%
LONG-TERM LIABILITIES
Long-Term Debt $108.9M $108.9M
YoY Change 0.0% -19.14%
Other Long-Term Liabilities $151.7M $157.1M
YoY Change -8.64% -6.89%
Total Long-Term Liabilities $260.5M $266.0M
YoY Change -5.22% -12.33%
TOTAL LIABILITIES
Total Short-Term Liabilities $611.6M $585.0M
Total Long-Term Liabilities $260.5M $266.0M
Total Liabilities $12.91B $12.88B
YoY Change 1.99% -0.78%
SHAREHOLDERS EQUITY
Retained Earnings $3.182B $3.085B
YoY Change 11.33% 11.87%
Common Stock $96.58M $96.57M
YoY Change 0.15% 0.15%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity $2.577B $2.484B
YoY Change
Total Liabilities & Shareholders Equity $15.49B $15.36B
YoY Change 4.29% 1.49%

Cashflow Statement

Concept 2024 Q2 2024 Q1
OPERATING ACTIVITIES
Net Income $96.98M $97.33M
YoY Change -3.49% -4.24%
Depreciation, Depletion And Amortization $5.715M $5.629M
YoY Change 5.68% 2.98%
Cash From Operating Activities $107.2M $135.4M
YoY Change 25.74% -5.11%
INVESTING ACTIVITIES
Capital Expenditures $2.341M $6.541M
YoY Change -58.16% 52.47%
Acquisitions
YoY Change
Other Investing Activities -$264.8M -$77.08M
YoY Change -495.82% -86.33%
Cash From Investing Activities -$267.1M -$83.62M
YoY Change -535.77% -85.29%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities 43.14M 206.1M
YoY Change -113.65% -144.13%
NET CHANGE
Cash From Operating Activities 107.2M 135.4M
Cash From Investing Activities -267.1M -83.62M
Cash From Financing Activities 43.14M 206.1M
Net Change In Cash -116.8M 257.9M
YoY Change -31.13% -128.89%
FREE CASH FLOW
Cash From Operating Activities $107.2M $135.4M
Capital Expenditures $2.341M $6.541M
Free Cash Flow $104.9M $128.9M
YoY Change 31.64% -6.9%

Facts In Submission

Frame Concept Type Concept / XBRL Key Value Unit
CY2024Q1 ecd Non Rule10b51 Arr Adopted Flag
NonRule10b51ArrAdoptedFlag
false
CY2024Q1 ecd Rule10b51 Arr Adopted Flag
Rule10b51ArrAdoptedFlag
false
CY2024Q1 ecd Non Rule10b51 Arr Trmntd Flag
NonRule10b51ArrTrmntdFlag
false
CY2024Q1 ecd Rule10b51 Arr Trmntd Flag
Rule10b51ArrTrmntdFlag
false
CY2024Q1 dei Entity Central Index Key
EntityCentralIndexKey
0000315709
CY2024Q1 dei Current Fiscal Year End Date
CurrentFiscalYearEndDate
--12-31
CY2024Q1 dei Document Fiscal Year Focus
DocumentFiscalYearFocus
2024
CY2024Q1 dei Document Fiscal Period Focus
DocumentFiscalPeriodFocus
Q1
CY2024Q1 dei Amendment Flag
AmendmentFlag
false
CY2024Q1 dei Document Type
DocumentType
10-Q
CY2024Q1 dei Document Quarterly Report
DocumentQuarterlyReport
true
CY2024Q1 dei Document Period End Date
DocumentPeriodEndDate
2024-03-31
CY2024Q1 dei Document Transition Report
DocumentTransitionReport
false
CY2024Q1 dei Entity File Number
EntityFileNumber
000-09439
CY2024Q1 dei Entity Registrant Name
EntityRegistrantName
INTERNATIONAL BANCSHARES CORPORATION
CY2024Q1 dei Entity Incorporation State Country Code
EntityIncorporationStateCountryCode
TX
CY2024Q1 dei Entity Tax Identification Number
EntityTaxIdentificationNumber
74-2157138
CY2024Q1 dei Entity Address Address Line1
EntityAddressAddressLine1
1200 San Bernardo Avenue
CY2024Q1 dei Entity Address City Or Town
EntityAddressCityOrTown
Laredo
CY2024Q1 dei Entity Address State Or Province
EntityAddressStateOrProvince
TX
CY2024Q1 dei Entity Address Postal Zip Code
EntityAddressPostalZipCode
78042-1359
CY2024Q1 dei City Area Code
CityAreaCode
956
CY2024Q1 dei Local Phone Number
LocalPhoneNumber
722-7611
CY2024Q1 dei Security12b Title
Security12bTitle
Common Stock, $1.00 par value
CY2024Q1 dei Trading Symbol
TradingSymbol
IBOC
CY2024Q1 dei Security Exchange Name
SecurityExchangeName
NASDAQ
CY2024Q1 dei Entity Current Reporting Status
EntityCurrentReportingStatus
Yes
CY2024Q1 dei Entity Interactive Data Current
EntityInteractiveDataCurrent
Yes
CY2024Q1 dei Entity Filer Category
EntityFilerCategory
Large Accelerated Filer
CY2024Q1 dei Entity Small Business
EntitySmallBusiness
false
CY2024Q1 dei Entity Emerging Growth Company
EntityEmergingGrowthCompany
false
CY2024Q1 dei Entity Shell Company
EntityShellCompany
false
CY2024Q2 dei Entity Common Stock Shares Outstanding
EntityCommonStockSharesOutstanding
62176953
CY2024Q1 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
908953000
CY2023Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
651058000
CY2024Q1 us-gaap Held To Maturity Securities Fair Value
HeldToMaturitySecuritiesFairValue
4400000
CY2023Q4 us-gaap Held To Maturity Securities Fair Value
HeldToMaturitySecuritiesFairValue
3400000
CY2024Q1 us-gaap Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss
DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss
4400000
CY2023Q4 us-gaap Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss
DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss
3400000
CY2024Q1 us-gaap Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss
DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss
5306234000
CY2023Q4 us-gaap Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss
DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss
5330814000
CY2024Q1 us-gaap Debt Securities Available For Sale Excluding Accrued Interest
DebtSecuritiesAvailableForSaleExcludingAccruedInterest
4769630000
CY2023Q4 us-gaap Debt Securities Available For Sale Excluding Accrued Interest
DebtSecuritiesAvailableForSaleExcludingAccruedInterest
4822341000
CY2024Q1 us-gaap Equity Securities Fv Ni Current And Noncurrent
EquitySecuritiesFvNiCurrentAndNoncurrent
5360000
CY2023Q4 us-gaap Equity Securities Fv Ni Current And Noncurrent
EquitySecuritiesFvNiCurrentAndNoncurrent
5417000
CY2024Q1 us-gaap Short Term Investments
ShortTermInvestments
4779390000
CY2023Q4 us-gaap Short Term Investments
ShortTermInvestments
4831158000
CY2024Q1 us-gaap Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss
FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
8112481000
CY2023Q4 us-gaap Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss
FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
8058961000
CY2024Q1 us-gaap Financing Receivable Allowance For Credit Loss Excluding Accrued Interest
FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest
142798000
CY2023Q4 us-gaap Financing Receivable Allowance For Credit Loss Excluding Accrued Interest
FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest
157069000
CY2024Q1 us-gaap Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss
FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss
7969683000
CY2023Q4 us-gaap Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss
FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss
7901892000
CY2024Q1 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
438006000
CY2023Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
437094000
CY2024Q1 us-gaap Interest Receivable
InterestReceivable
66338000
CY2023Q4 us-gaap Interest Receivable
InterestReceivable
65302000
CY2024Q1 us-gaap Other Long Term Investments
OtherLongTermInvestments
351372000
CY2023Q4 us-gaap Other Long Term Investments
OtherLongTermInvestments
343452000
CY2024Q1 us-gaap Cash Surrender Value Of Life Insurance
CashSurrenderValueOfLifeInsurance
301209000
CY2023Q4 us-gaap Cash Surrender Value Of Life Insurance
CashSurrenderValueOfLifeInsurance
303486000
CY2024Q1 us-gaap Goodwill
Goodwill
282532000
CY2023Q4 us-gaap Goodwill
Goodwill
282532000
CY2024Q1 us-gaap Other Assets
OtherAssets
263437000
CY2023Q4 us-gaap Other Assets
OtherAssets
250215000
CY2024Q1 us-gaap Assets
Assets
15360920000
CY2023Q4 us-gaap Assets
Assets
15066189000
CY2024Q1 us-gaap Noninterest Bearing Deposit Liabilities
NoninterestBearingDepositLiabilities
4984520000
CY2023Q4 us-gaap Noninterest Bearing Deposit Liabilities
NoninterestBearingDepositLiabilities
5030845000
CY2024Q1 us-gaap Interest Bearing Deposit Liabilities
InterestBearingDepositLiabilities
4512846000
CY2023Q4 us-gaap Interest Bearing Deposit Liabilities
InterestBearingDepositLiabilities
4368532000
CY2024Q1 us-gaap Time Deposits
TimeDeposits
2518040000
CY2023Q4 us-gaap Time Deposits
TimeDeposits
2425177000
CY2024Q1 us-gaap Deposits
Deposits
12015406000
CY2023Q4 us-gaap Deposits
Deposits
11824554000
CY2024Q1 us-gaap Securities Sold Under Agreements To Repurchase
SecuritiesSoldUnderAgreementsToRepurchase
584968000
CY2023Q4 us-gaap Securities Sold Under Agreements To Repurchase
SecuritiesSoldUnderAgreementsToRepurchase
530416000
CY2024Q1 us-gaap Advances From Federal Home Loan Banks
AdvancesFromFederalHomeLoanBanks
10695000
CY2023Q4 us-gaap Advances From Federal Home Loan Banks
AdvancesFromFederalHomeLoanBanks
10745000
CY2024Q1 us-gaap Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust
JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust
108868000
CY2023Q4 us-gaap Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust
JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust
108868000
CY2024Q1 us-gaap Other Liabilities
OtherLiabilities
157093000
CY2023Q4 us-gaap Other Liabilities
OtherLiabilities
143832000
CY2024Q1 us-gaap Liabilities
Liabilities
12877030000
CY2023Q4 us-gaap Liabilities
Liabilities
12618415000
CY2024Q1 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
1.00
CY2023Q4 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
1.00
CY2024Q1 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
275000000
CY2023Q4 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
275000000
CY2024Q1 us-gaap Common Stock Shares Issued
CommonStockSharesIssued
96570475
CY2023Q4 us-gaap Common Stock Shares Issued
CommonStockSharesIssued
96466900
CY2024Q1 us-gaap Common Stock Value
CommonStockValue
96570000
CY2023Q4 us-gaap Common Stock Value
CommonStockValue
96467000
CY2024Q1 us-gaap Additional Paid In Capital
AdditionalPaidInCapital
157775000
CY2023Q4 us-gaap Additional Paid In Capital
AdditionalPaidInCapital
155511000
CY2024Q1 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
3085388000
CY2023Q4 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
3029088000
CY2024Q1 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-419945000
CY2023Q4 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-397889000
CY2024Q1 us-gaap Stockholders Equity Before Treasury Stock
StockholdersEquityBeforeTreasuryStock
2919788000
CY2023Q4 us-gaap Stockholders Equity Before Treasury Stock
StockholdersEquityBeforeTreasuryStock
2883177000
CY2024Q1 us-gaap Treasury Stock Common Shares
TreasuryStockCommonShares
34400468
CY2023Q4 us-gaap Treasury Stock Common Shares
TreasuryStockCommonShares
34391184
CY2024Q1 us-gaap Treasury Stock Common Value
TreasuryStockCommonValue
435898000
CY2023Q4 us-gaap Treasury Stock Common Value
TreasuryStockCommonValue
435403000
CY2024Q1 us-gaap Stockholders Equity
StockholdersEquity
2483890000
CY2023Q4 us-gaap Stockholders Equity
StockholdersEquity
2447774000
CY2024Q1 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
15360920000
CY2023Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
15066189000
CY2024Q1 us-gaap Interest And Fee Income Loans And Leases
InterestAndFeeIncomeLoansAndLeases
168328000
CY2023Q1 us-gaap Interest And Fee Income Loans And Leases
InterestAndFeeIncomeLoansAndLeases
142270000
CY2024Q1 us-gaap Interest Income Securities Taxable
InterestIncomeSecuritiesTaxable
36263000
CY2023Q1 us-gaap Interest Income Securities Taxable
InterestIncomeSecuritiesTaxable
29809000
CY2024Q1 us-gaap Interest Income Securities Tax Exempt
InterestIncomeSecuritiesTaxExempt
1546000
CY2023Q1 us-gaap Interest Income Securities Tax Exempt
InterestIncomeSecuritiesTaxExempt
1578000
CY2024Q1 us-gaap Other Interest And Dividend Income
OtherInterestAndDividendIncome
5952000
CY2023Q1 us-gaap Other Interest And Dividend Income
OtherInterestAndDividendIncome
14492000
CY2024Q1 us-gaap Interest And Dividend Income Operating
InterestAndDividendIncomeOperating
212089000
CY2023Q1 us-gaap Interest And Dividend Income Operating
InterestAndDividendIncomeOperating
188149000
CY2024Q1 us-gaap Interest Expense Now Accounts Money Market Accounts And Savings Deposits
InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDeposits
19916000
CY2023Q1 us-gaap Interest Expense Now Accounts Money Market Accounts And Savings Deposits
InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDeposits
11694000
CY2024Q1 us-gaap Interest Expense Time Deposits
InterestExpenseTimeDeposits
21276000
CY2023Q1 us-gaap Interest Expense Time Deposits
InterestExpenseTimeDeposits
6829000
CY2024Q1 us-gaap Interest Expense Securities Sold Under Agreements To Repurchase
InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase
5240000
CY2023Q1 us-gaap Interest Expense Securities Sold Under Agreements To Repurchase
InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase
2142000
CY2024Q1 us-gaap Interest Expense Other Domestic Deposits
InterestExpenseOtherDomesticDeposits
70000
CY2023Q1 us-gaap Interest Expense Other Domestic Deposits
InterestExpenseOtherDomesticDeposits
71000
CY2024Q1 us-gaap Interest Expense Junior Subordinated Debentures
InterestExpenseJuniorSubordinatedDebentures
1979000
CY2023Q1 us-gaap Interest Expense Junior Subordinated Debentures
InterestExpenseJuniorSubordinatedDebentures
2228000
CY2024Q1 us-gaap Interest Expense
InterestExpense
48481000
CY2023Q1 us-gaap Interest Expense
InterestExpense
22964000
CY2024Q1 us-gaap Interest Income Expense Net
InterestIncomeExpenseNet
163608000
CY2023Q1 us-gaap Interest Income Expense Net
InterestIncomeExpenseNet
165185000
CY2024Q1 us-gaap Provision For Loan Losses Expensed
ProvisionForLoanLossesExpensed
12978000
CY2023Q1 us-gaap Provision For Loan Losses Expensed
ProvisionForLoanLossesExpensed
8587000
CY2024Q1 us-gaap Interest Income Expense After Provision For Loan Loss
InterestIncomeExpenseAfterProvisionForLoanLoss
150630000
CY2023Q1 us-gaap Interest Income Expense After Provision For Loan Loss
InterestIncomeExpenseAfterProvisionForLoanLoss
156598000
CY2024Q1 us-gaap Noninterest Income Other
NoninterestIncomeOther
1623000
CY2023Q1 us-gaap Noninterest Income Other
NoninterestIncomeOther
2955000
CY2024Q1 us-gaap Noninterest Income Other Operating Income
NoninterestIncomeOtherOperatingIncome
5603000
CY2023Q1 us-gaap Noninterest Income Other Operating Income
NoninterestIncomeOtherOperatingIncome
3845000
CY2024Q1 us-gaap Noninterest Income
NoninterestIncome
42242000
CY2023Q1 us-gaap Noninterest Income
NoninterestIncome
40362000
CY2024Q1 us-gaap Labor And Related Expense
LaborAndRelatedExpense
35867000
CY2023Q1 us-gaap Labor And Related Expense
LaborAndRelatedExpense
32859000
CY2024Q1 us-gaap Occupancy Net
OccupancyNet
5677000
CY2023Q1 us-gaap Occupancy Net
OccupancyNet
6326000
CY2024Q1 us-gaap Depreciation Nonproduction
DepreciationNonproduction
5629000
CY2023Q1 us-gaap Depreciation Nonproduction
DepreciationNonproduction
5466000
CY2024Q1 us-gaap Professional Fees
ProfessionalFees
3691000
CY2023Q1 us-gaap Professional Fees
ProfessionalFees
3590000
CY2024Q1 us-gaap Federal Deposit Insurance Corporation Premium Expense
FederalDepositInsuranceCorporationPremiumExpense
1699000
CY2023Q1 us-gaap Federal Deposit Insurance Corporation Premium Expense
FederalDepositInsuranceCorporationPremiumExpense
4138000
CY2024Q1 us-gaap Other Revenue Expense From Real Estate Operations
OtherRevenueExpenseFromRealEstateOperations
-30000
CY2023Q1 us-gaap Other Revenue Expense From Real Estate Operations
OtherRevenueExpenseFromRealEstateOperations
1745000
CY2024Q1 us-gaap Advertising Expense
AdvertisingExpense
1820000
CY2023Q1 us-gaap Advertising Expense
AdvertisingExpense
1264000
CY2024Q1 us-gaap Information Technology And Data Processing
InformationTechnologyAndDataProcessing
5312000
CY2023Q1 us-gaap Information Technology And Data Processing
InformationTechnologyAndDataProcessing
4969000
CY2024Q1 us-gaap Other Noninterest Expense
OtherNoninterestExpense
9918000
CY2023Q1 us-gaap Other Noninterest Expense
OtherNoninterestExpense
11162000
CY2024Q1 us-gaap Noninterest Expense
NoninterestExpense
69643000
CY2023Q1 us-gaap Noninterest Expense
NoninterestExpense
68029000
CY2024Q1 us-gaap Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
123229000
CY2023Q1 us-gaap Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
128931000
CY2024Q1 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
25898000
CY2023Q1 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
27288000
CY2024Q1 us-gaap Net Income Loss
NetIncomeLoss
97331000
CY2023Q1 us-gaap Net Income Loss
NetIncomeLoss
101643000
CY2024Q1 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
62150378
CY2023Q1 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
62142264
CY2024Q1 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
1.57
CY2023Q1 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
1.64
CY2024Q1 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
62267293
CY2023Q1 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
62282328
CY2024Q1 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
1.56
CY2023Q1 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
1.63
CY2024Q1 us-gaap Net Income Loss
NetIncomeLoss
97331000
CY2023Q1 us-gaap Net Income Loss
NetIncomeLoss
101643000
CY2024Q1 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
-5863000
CY2023Q1 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
13293000
CY2024Q1 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
-22056000
CY2023Q1 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
50006000
CY2024Q1 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
-22056000
CY2023Q1 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
50006000
CY2024Q1 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
75275000
CY2023Q1 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
151649000
CY2023Q4 us-gaap Stockholders Equity
StockholdersEquity
2447774000
CY2024Q1 us-gaap Net Income Loss
NetIncomeLoss
97331000
CY2024Q1 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
0.66
CY2024Q1 us-gaap Dividends Common Stock Cash
DividendsCommonStockCash
41031000
CY2024Q1 us-gaap Treasury Stock Shares Acquired
TreasuryStockSharesAcquired
9284
CY2024Q1 us-gaap Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
495000
CY2024Q1 us-gaap Stock Issued During Period Value Stock Options Exercised
StockIssuedDuringPeriodValueStockOptionsExercised
2293000
CY2024Q1 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
74000
CY2024Q1 iboc Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Net Of Reclassification Adjustment
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringNetOfReclassificationAdjustment
-22056000
CY2024Q1 us-gaap Stockholders Equity
StockholdersEquity
2483890000
CY2022Q4 us-gaap Stockholders Equity
StockholdersEquity
2044759000
CY2023Q1 us-gaap Net Income Loss
NetIncomeLoss
101643000
CY2023Q1 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
0.63
CY2023Q1 us-gaap Dividends Common Stock Cash
DividendsCommonStockCash
39151000
CY2023Q1 us-gaap Treasury Stock Shares Acquired
TreasuryStockSharesAcquired
25000
CY2023Q1 us-gaap Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
1036000
CY2023Q1 us-gaap Stock Issued During Period Value Stock Options Exercised
StockIssuedDuringPeriodValueStockOptionsExercised
85000
CY2023Q1 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
102000
CY2024Q1 us-gaap Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
2000
CY2024Q1 us-gaap Proceeds From Sale Of Other Real Estate
ProceedsFromSaleOfOtherRealEstate
635000
CY2023Q1 iboc Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Net Of Reclassification Adjustment
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringNetOfReclassificationAdjustment
50006000
CY2023Q1 us-gaap Stockholders Equity
StockholdersEquity
2156408000
CY2024Q1 us-gaap Profit Loss
ProfitLoss
97331000
CY2023Q1 us-gaap Profit Loss
ProfitLoss
101643000
CY2024Q1 us-gaap Provision For Loan Losses Expensed
ProvisionForLoanLossesExpensed
12978000
CY2023Q1 us-gaap Provision For Loan Losses Expensed
ProvisionForLoanLossesExpensed
8587000
CY2023Q1 us-gaap Other Real Estate Covered Valuation Adjustments
OtherRealEstateCoveredValuationAdjustments
-250000
CY2024Q1 us-gaap Depreciation Nonproduction
DepreciationNonproduction
5629000
CY2023Q1 us-gaap Depreciation Nonproduction
DepreciationNonproduction
5466000
CY2024Q1 us-gaap Gain Loss On Sale Of Property Plant Equipment
GainLossOnSaleOfPropertyPlantEquipment
2000
CY2024Q1 us-gaap Gains Losses On Sales Of Other Real Estate
GainsLossesOnSalesOfOtherRealEstate
258000
CY2023Q1 us-gaap Gains Losses On Sales Of Other Real Estate
GainsLossesOnSalesOfOtherRealEstate
2372000
CY2024Q1 iboc Accretion Of Discounts Investments
AccretionOfDiscountsInvestments
455000
CY2023Q1 iboc Accretion Of Discounts Investments
AccretionOfDiscountsInvestments
589000
CY2024Q1 iboc Amortization Of Investment Securities Premiums
AmortizationOfInvestmentSecuritiesPremiums
1427000
CY2023Q1 iboc Amortization Of Investment Securities Premiums
AmortizationOfInvestmentSecuritiesPremiums
1817000
CY2024Q1 us-gaap Equity Securities Fv Ni Unrealized Gain Loss
EquitySecuritiesFvNiUnrealizedGainLoss
-57000
CY2023Q1 us-gaap Equity Securities Fv Ni Unrealized Gain Loss
EquitySecuritiesFvNiUnrealizedGainLoss
34000
CY2024Q1 us-gaap Share Based Compensation
ShareBasedCompensation
74000
CY2023Q1 us-gaap Share Based Compensation
ShareBasedCompensation
102000
CY2024Q1 us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
955000
CY2023Q1 us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
802000
CY2024Q1 us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
6278000
CY2023Q1 us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
-1841000
CY2024Q1 us-gaap Increase Decrease In Accrued Interest Receivable Net
IncreaseDecreaseInAccruedInterestReceivableNet
1036000
CY2023Q1 us-gaap Increase Decrease In Accrued Interest Receivable Net
IncreaseDecreaseInAccruedInterestReceivableNet
3233000
CY2024Q1 us-gaap Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
9587000
CY2023Q1 us-gaap Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
-1277000
CY2024Q1 us-gaap Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
23914000
CY2023Q1 us-gaap Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
32419000
CY2024Q1 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
135395000
CY2023Q1 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
142690000
CY2024Q1 us-gaap Proceeds From Maturities Prepayments And Calls Of Other Investments
ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments
1075000
CY2023Q1 us-gaap Proceeds From Maturities Prepayments And Calls Of Other Investments
ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments
1200000
CY2024Q1 us-gaap Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
1720000
CY2023Q1 us-gaap Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
450000
CY2024Q1 us-gaap Payments To Acquire Available For Sale Securities Debt
PaymentsToAcquireAvailableForSaleSecuritiesDebt
135249000
CY2023Q1 us-gaap Payments To Acquire Available For Sale Securities Debt
PaymentsToAcquireAvailableForSaleSecuritiesDebt
595184000
CY2024Q1 us-gaap Proceeds From Maturities Prepayments And Calls Of Mortgage Backed Securities Mbs
ProceedsFromMaturitiesPrepaymentsAndCallsOfMortgageBackedSecuritiesMBS
155062000
CY2023Q1 us-gaap Proceeds From Maturities Prepayments And Calls Of Mortgage Backed Securities Mbs
ProceedsFromMaturitiesPrepaymentsAndCallsOfMortgageBackedSecuritiesMBS
134171000
CY2024Q1 us-gaap Payments For Proceeds From Loans And Leases
PaymentsForProceedsFromLoansAndLeases
80879000
CY2023Q1 us-gaap Payments For Proceeds From Loans And Leases
PaymentsForProceedsFromLoansAndLeases
102525000
CY2024Q1 us-gaap Payments To Acquire Other Investments
PaymentsToAcquireOtherInvestments
21246000
CY2023Q1 us-gaap Payments To Acquire Other Investments
PaymentsToAcquireOtherInvestments
9935000
CY2024Q1 iboc Distributions From Other Investments
DistributionsFromOtherInvestments
1800000
CY2023Q1 iboc Distributions From Other Investments
DistributionsFromOtherInvestments
5124000
CY2024Q1 us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
6541000
CY2023Q1 us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
4290000
CY2024Q1 iboc Impaired Commercial Collateral Financing Receivable Appraisals To Determine Fair Value
ImpairedCommercialCollateralFinancingReceivableAppraisalsToDetermineFairValue
9137000
CY2024Q1 iboc Impaired Collateral Dependent Commercial Loans With Internal Evaluation Completed Within Last Twelve Months
ImpairedCollateralDependentCommercialLoansWithInternalEvaluationCompletedWithinLastTwelveMonths
276000
CY2023Q4 iboc Impaired Financing Receivable Recorded Investment Fair Value Disclosure
ImpairedFinancingReceivableRecordedInvestmentFairValueDisclosure
46491000
CY2023Q1 us-gaap Proceeds From Sale Of Other Real Estate
ProceedsFromSaleOfOtherRealEstate
2691000
CY2024Q1 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-83621000
CY2023Q1 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-568298000
CY2024Q1 iboc Increase Decrease In Noninterest Bearing Demand Deposits
IncreaseDecreaseInNoninterestBearingDemandDeposits
-46325000
CY2023Q1 iboc Increase Decrease In Noninterest Bearing Demand Deposits
IncreaseDecreaseInNoninterestBearingDemandDeposits
-297310000
CY2024Q1 iboc Increase Decrease In Saving And Interest Bearing Demand Deposits
IncreaseDecreaseInSavingAndInterestBearingDemandDeposits
144314000
CY2023Q1 iboc Increase Decrease In Saving And Interest Bearing Demand Deposits
IncreaseDecreaseInSavingAndInterestBearingDemandDeposits
-158129000
CY2024Q1 us-gaap Increase Decrease In Time Deposits
IncreaseDecreaseInTimeDeposits
92863000
CY2023Q1 us-gaap Increase Decrease In Time Deposits
IncreaseDecreaseInTimeDeposits
76211000
CY2024Q1 us-gaap Proceeds From Payments For In Securities Sold Under Agreements To Repurchase
ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase
54552000
CY2023Q1 us-gaap Proceeds From Payments For In Securities Sold Under Agreements To Repurchase
ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase
-47689000
CY2024Q1 us-gaap Increase Decrease In Loans From Other Federal Home Loan Banks
IncreaseDecreaseInLoansFromOtherFederalHomeLoanBanks
-50000
CY2023Q1 us-gaap Increase Decrease In Loans From Other Federal Home Loan Banks
IncreaseDecreaseInLoansFromOtherFederalHomeLoanBanks
-49000
CY2024Q1 us-gaap Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
495000
CY2023Q1 us-gaap Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
1036000
CY2024Q1 us-gaap Proceeds From Issuance Or Sale Of Equity
ProceedsFromIssuanceOrSaleOfEquity
2293000
CY2023Q1 us-gaap Proceeds From Issuance Or Sale Of Equity
ProceedsFromIssuanceOrSaleOfEquity
85000
CY2024Q1 us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
41031000
CY2023Q1 us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
39151000
CY2024Q1 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
206121000
CY2023Q1 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
-467068000
CY2024Q1 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
257895000
CY2023Q1 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
-892676000
CY2023Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
651058000
CY2022Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
2087724000
CY2024Q1 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
908953000
CY2023Q1 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
1195048000
CY2024Q1 us-gaap Interest Paid Net
InterestPaidNet
48181000
CY2023Q1 us-gaap Interest Paid Net
InterestPaidNet
19731000
CY2024Q1 us-gaap Transfer To Other Real Estate
TransferToOtherRealEstate
110000
CY2023Q1 us-gaap Transfer To Other Real Estate
TransferToOtherRealEstate
353000
CY2024Q1 us-gaap Number Of Operating Segments
NumberOfOperatingSegments
1
CY2024Q1 iboc Number Of Active Operating Subsidiaries
NumberOfActiveOperatingSubsidiaries
5
CY2024Q1 iboc Impaired Financing Receivable Recorded Investment Fair Value Disclosure
ImpairedFinancingReceivableRecordedInvestmentFairValueDisclosure
45866000
CY2023Q4 iboc Impaired Commercial Collateral Financing Receivable Appraisals To Determine Fair Value
ImpairedCommercialCollateralFinancingReceivableAppraisalsToDetermineFairValue
1272000
CY2023Q4 iboc Impaired Collateral Dependent Commercial Loans With Internal Evaluation Completed Within Last Twelve Months
ImpairedCollateralDependentCommercialLoansWithInternalEvaluationCompletedWithinLastTwelveMonths
35061000
CY2024Q1 iboc Allowance For Loan And Lease Losses Period Increase Decrease Loans Transferred To Other Real Estate Owned
AllowanceForLoanAndLeaseLossesPeriodIncreaseDecreaseLoansTransferredToOtherRealEstateOwned
0
CY2023 iboc Allowance For Loan And Lease Losses Period Increase Decrease Loans Transferred To Other Real Estate Owned
AllowanceForLoanAndLeaseLossesPeriodIncreaseDecreaseLoansTransferredToOtherRealEstateOwned
0
CY2024Q1 iboc Allowance For Loan Lease Losses Write Offs Prior To Foreclosure
AllowanceForLoanLeaseLossesWriteOffsPriorToForeclosure
0
CY2023 iboc Allowance For Loan Lease Losses Write Offs Prior To Foreclosure
AllowanceForLoanLeaseLossesWriteOffsPriorToForeclosure
2538000
CY2024Q1 us-gaap Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss
FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
8112481000
CY2023Q4 us-gaap Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss
FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
8058961000
CY2023Q4 us-gaap Financing Receivable Allowance For Credit Loss Excluding Accrued Interest
FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest
157069000
CY2024Q1 us-gaap Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff
FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff
27824000
CY2024Q1 us-gaap Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery
FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery
575000
CY2024Q1 us-gaap Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff After Recovery
FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffAfterRecovery
27249000
CY2024Q1 us-gaap Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal
FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal
12978000
CY2024Q1 us-gaap Financing Receivable Allowance For Credit Loss Excluding Accrued Interest
FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest
142798000
CY2022Q4 us-gaap Financing Receivable Allowance For Credit Loss Excluding Accrued Interest
FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest
125972000
CY2023Q1 us-gaap Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff
FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff
2033000
CY2023Q1 us-gaap Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery
FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery
1031000
CY2023Q1 us-gaap Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff After Recovery
FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffAfterRecovery
1002000
CY2023Q1 us-gaap Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal
FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal
8587000
CY2023Q1 us-gaap Financing Receivable Allowance For Credit Loss Excluding Accrued Interest
FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest
133557000
CY2024Q1 us-gaap Financing Receivable Individually Evaluated For Impairment
FinancingReceivableIndividuallyEvaluatedForImpairment
46232000
CY2024Q1 iboc Financing Receivable Individually Evaluated For Impairment Allowance For Credit Losses
FinancingReceivableIndividuallyEvaluatedForImpairmentAllowanceForCreditLosses
5820000
CY2024Q1 us-gaap Financing Receivable Collectively Evaluated For Impairment
FinancingReceivableCollectivelyEvaluatedForImpairment
8066249000
CY2024Q1 iboc Financing Receivable Collectively Evaluated For Impairment Allowance For Credit Losses
FinancingReceivableCollectivelyEvaluatedForImpairmentAllowanceForCreditLosses
136978000
CY2023Q4 us-gaap Financing Receivable Individually Evaluated For Impairment
FinancingReceivableIndividuallyEvaluatedForImpairment
47061000
CY2023Q4 iboc Financing Receivable Individually Evaluated For Impairment Allowance For Credit Losses
FinancingReceivableIndividuallyEvaluatedForImpairmentAllowanceForCreditLosses
12291000
CY2023Q4 us-gaap Financing Receivable Collectively Evaluated For Impairment
FinancingReceivableCollectivelyEvaluatedForImpairment
8011900000
CY2023Q4 iboc Financing Receivable Collectively Evaluated For Impairment Allowance For Credit Losses
FinancingReceivableCollectivelyEvaluatedForImpairmentAllowanceForCreditLosses
144778000
CY2024Q1 us-gaap Financing Receivable Recorded Investment Nonaccrual Status
FinancingReceivableRecordedInvestmentNonaccrualStatus
46322000
CY2023Q4 us-gaap Financing Receivable Recorded Investment Nonaccrual Status
FinancingReceivableRecordedInvestmentNonaccrualStatus
47170000
CY2024Q1 us-gaap Financing Receivable Threshold Period Past Due Writeoff
FinancingReceivableThresholdPeriodPastDueWriteoff
P90D
CY2024Q1 us-gaap Financing Receivable Recorded Investment90 Days Past Due And Still Accruing
FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
4768000
CY2024Q1 us-gaap Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss
FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
8112481000
CY2023Q4 us-gaap Financing Receivable Recorded Investment90 Days Past Due And Still Accruing
FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
5597000
CY2023Q4 us-gaap Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss
FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
8058961000
CY2024Q1 us-gaap Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year
FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear
759708000
CY2024Q1 us-gaap Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year
FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear
3055491000
CY2024Q1 us-gaap Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year
FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear
1735632000
CY2024Q1 us-gaap Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year
FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear
1262416000
CY2024Q1 us-gaap Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year
FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear
522243000
CY2024Q1 us-gaap Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year
FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear
776991000
CY2024Q1 us-gaap Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss
FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
8112481000
CY2023Q4 us-gaap Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year
FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear
3364226000
CY2023Q4 us-gaap Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year
FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear
1928023000
CY2023Q4 us-gaap Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year
FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear
1328045000
CY2023Q4 us-gaap Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year
FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear
609341000
CY2023Q4 us-gaap Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year
FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear
295840000
CY2023Q4 iboc Financing Receivable Excluding Accrued Interest Originated Morethan Six Years Before Current Fiscal Year
FinancingReceivableExcludingAccruedInterestOriginatedMorethanSixYearsBeforeCurrentFiscalYear
533486000
CY2023Q4 us-gaap Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss
FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
8058961000
CY2023Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Non Option Equity Instruments Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber
465250
CY2023Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
39.35
CY2024Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Non Option Equity Instruments Forfeitures
ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures
10000
CY2024Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
39.33
CY2024Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Non Option Equity Instruments Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber
455250
CY2024Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
39.35
CY2024Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Outstanding Weighted Average Remaining Contractual Terms
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms
P8Y3M
CY2024Q1 us-gaap Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value Outstanding
SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding
7643000
CY2024Q1 us-gaap Debt Securities Held To Maturity Excluding Accrued Interest Before Allowance For Credit Loss
DebtSecuritiesHeldToMaturityExcludingAccruedInterestBeforeAllowanceForCreditLoss
4400000
CY2024Q1 us-gaap Held To Maturity Securities Fair Value
HeldToMaturitySecuritiesFairValue
4400000
CY2024Q1 us-gaap Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss
DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss
4400000
CY2024Q1 us-gaap Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss
DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss
5306234000
CY2024Q1 us-gaap Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
4437000
CY2024Q1 us-gaap Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
541041000
CY2023Q4 us-gaap Debt Securities Held To Maturity Excluding Accrued Interest Before Allowance For Credit Loss
DebtSecuritiesHeldToMaturityExcludingAccruedInterestBeforeAllowanceForCreditLoss
3400000
CY2023Q4 us-gaap Held To Maturity Securities Fair Value
HeldToMaturitySecuritiesFairValue
3400000
CY2023Q4 us-gaap Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss
DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss
3400000
CY2023Q4 us-gaap Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss
DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss
5330814000
CY2023Q4 us-gaap Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
11143000
CY2023Q4 us-gaap Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
519616000
CY2024Q1 us-gaap Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date Rolling Within One Year
DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateRollingWithinOneYear
2200000
CY2024Q1 us-gaap Held To Maturity Securities Debt Maturities Next Rolling Twelve Months Fair Value
HeldToMaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue
2200000
CY2024Q1 us-gaap Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date Rolling After One Through Five Years
DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateRollingAfterOneThroughFiveYears
2200000
CY2024Q1 us-gaap Held To Maturity Securities Debt Maturities Rolling Year Two Through Five Fair Value
HeldToMaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue
2200000
CY2024Q1 iboc Debt Securities Available For Sale Maturity Excluding Accrued Interest Allocated And Single Maturity Date Rolling After5 Through10 Years Amortized Cost
DebtSecuritiesAvailableForSaleMaturityExcludingAccruedInterestAllocatedAndSingleMaturityDateRollingAfter5Through10YearsAmortizedCost
1455000
CY2024Q1 us-gaap Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Fair Value
AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue
1444000
CY2024Q1 iboc Debt Securities Available For Sale Maturity Excluding Accrued Interest Allocated And Single Maturity Date Rolling After10 Years Amortized Cost
DebtSecuritiesAvailableForSaleMaturityExcludingAccruedInterestAllocatedAndSingleMaturityDateRollingAfter10YearsAmortizedCost
157714000
CY2024Q1 us-gaap Available For Sale Securities Debt Maturities Rolling After Year Ten Fair Value
AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue
155880000
CY2024Q1 iboc Debt Securities Available For Sale Excluding Accrued Interest Maturity Without Single Maturity Date Amortized Cost
DebtSecuritiesAvailableForSaleExcludingAccruedInterestMaturityWithoutSingleMaturityDateAmortizedCost
5147065000
CY2024Q1 us-gaap Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value
AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue
4612306000
CY2024Q1 us-gaap Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss
DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss
4400000
CY2024Q1 us-gaap Held To Maturity Securities Fair Value
HeldToMaturitySecuritiesFairValue
4400000
CY2024Q1 us-gaap Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss
DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss
5306234000
CY2024Q1 us-gaap Debt Securities Available For Sale Excluding Accrued Interest
DebtSecuritiesAvailableForSaleExcludingAccruedInterest
4769630000
CY2024Q1 us-gaap Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
1720000
CY2024Q1 us-gaap Proceeds From Sale Of Mortgage Backed Securities Mbs Categorized As Available For Sale
ProceedsFromSaleOfMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale
0
CY2024Q1 us-gaap Debt Securities Available For Sale Realized Gain
DebtSecuritiesAvailableForSaleRealizedGain
0
CY2024Q1 us-gaap Debt Securities Available For Sale Realized Loss
DebtSecuritiesAvailableForSaleRealizedLoss
0
CY2024Q1 us-gaap Debt Securities Available For Sale Realized Loss
DebtSecuritiesAvailableForSaleRealizedLoss
0
CY2023Q1 us-gaap Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
450000
CY2023Q1 us-gaap Proceeds From Sale Of Mortgage Backed Securities Mbs Categorized As Available For Sale
ProceedsFromSaleOfMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale
0
CY2023Q1 us-gaap Debt Securities Available For Sale Realized Gain
DebtSecuritiesAvailableForSaleRealizedGain
0
CY2023Q1 us-gaap Debt Securities Available For Sale Realized Loss
DebtSecuritiesAvailableForSaleRealizedLoss
0
CY2024Q1 us-gaap Equity Securities Fv Ni Current And Noncurrent
EquitySecuritiesFvNiCurrentAndNoncurrent
5360000
CY2023Q4 us-gaap Equity Securities Fv Ni Current And Noncurrent
EquitySecuritiesFvNiCurrentAndNoncurrent
5417000
CY2024Q1 us-gaap Equity Securities Fv Ni Realized Gain Loss
EquitySecuritiesFvNiRealizedGainLoss
-57000
CY2024Q1 us-gaap Equity Securities Fv Ni Unrealized Gain Loss
EquitySecuritiesFvNiUnrealizedGainLoss
-57000
CY2023Q1 us-gaap Equity Securities Fv Ni Gain Loss
EquitySecuritiesFvNiGainLoss
34000
CY2023Q1 us-gaap Equity Securities Fv Ni Unrealized Gain Loss
EquitySecuritiesFvNiUnrealizedGainLoss
34000
CY2023Q1 us-gaap Affordable Housing Project Investment Write Down Amount
AffordableHousingProjectInvestmentWriteDownAmount
0
CY2024Q1 us-gaap Affordable Housing Project Investment Write Down Amount
AffordableHousingProjectInvestmentWriteDownAmount
0
CY2024Q1 us-gaap Advances From Federal Home Loan Banks
AdvancesFromFederalHomeLoanBanks
10695000
CY2023Q4 us-gaap Advances From Federal Home Loan Banks
AdvancesFromFederalHomeLoanBanks
10745000
CY2024Q1 iboc Number Of Statutory Business Trusts Issuing Preferred Securities
NumberOfStatutoryBusinessTrustsIssuingPreferredSecurities
4
CY2024Q1 iboc Number Of Statutory Business Trusts Issuing Preferred Securities
NumberOfStatutoryBusinessTrustsIssuingPreferredSecurities
4
CY2024Q1 us-gaap Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust
JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust
108868000
CY2023Q4 us-gaap Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust
JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust
108868000
CY2024Q1 iboc Maximum Number Of Consecutive Quarterly Periods Available For Deferral Of Payment Of Interest
MaximumNumberOfConsecutiveQuarterlyPeriodsAvailableForDeferralOfPaymentOfInterest
20
CY2024Q1 iboc Maximum Percentage Of Capital Securities Issued By Trust Qualifying As Tier One Capital
MaximumPercentageOfCapitalSecuritiesIssuedByTrustQualifyingAsTierOneCapital
0.25
CY2024Q1 iboc Minimum Percentage Of Capital Securities Issued By Trust Qualifying As Tier Two Capital
MinimumPercentageOfCapitalSecuritiesIssuedByTrustQualifyingAsTierTwoCapital
0.25
CY2024Q1 iboc Capital Securities Issued By Trust Qualifying As Tier One Capital
CapitalSecuritiesIssuedByTrustQualifyingAsTierOneCapital
108868000
CY2023Q4 iboc Capital Securities Issued By Trust Qualifying As Tier One Capital
CapitalSecuritiesIssuedByTrustQualifyingAsTierOneCapital
108868000
CY2024Q1 us-gaap Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust
JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust
108868000
CY2024Q1 us-gaap Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
0.66
CY2023Q1 us-gaap Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
0.63
CY2009Q2 us-gaap Stock Repurchase Program Authorized Amount1
StockRepurchaseProgramAuthorizedAmount1
40000000
CY2009Q2 us-gaap Stock Repurchase Program Period In Force1
StockRepurchaseProgramPeriodInForce1
P12M
CY2023Q1 us-gaap Stock Repurchase Program Authorized Amount1
StockRepurchaseProgramAuthorizedAmount1
150000000
CY2023Q1 us-gaap Stock Repurchase Program Period In Force1
StockRepurchaseProgramPeriodInForce1
P12M
CY2024Q2 us-gaap Stock Repurchased During Period Shares
StockRepurchasedDuringPeriodShares
13706581
CY2024Q2 us-gaap Stock Repurchased During Period Value
StockRepurchasedDuringPeriodValue
414926000
CY2024Q1 us-gaap Common Equity Tier One Capital Ratio
CommonEquityTierOneCapitalRatio
0.2200
CY2023Q4 us-gaap Common Equity Tier One Capital Ratio
CommonEquityTierOneCapitalRatio
0.2172
CY2024Q1 us-gaap Tier One Leverage Capital To Average Assets
TierOneLeverageCapitalToAverageAssets
0.1785
CY2023Q4 us-gaap Tier One Leverage Capital To Average Assets
TierOneLeverageCapitalToAverageAssets
0.1746
CY2024Q1 us-gaap Tier One Risk Based Capital To Risk Weighted Assets
TierOneRiskBasedCapitalToRiskWeightedAssets
0.2265
CY2023Q4 us-gaap Tier One Risk Based Capital To Risk Weighted Assets
TierOneRiskBasedCapitalToRiskWeightedAssets
0.2239
CY2024Q1 us-gaap Capital To Risk Weighted Assets
CapitalToRiskWeightedAssets
0.2390
CY2023Q4 us-gaap Capital To Risk Weighted Assets
CapitalToRiskWeightedAssets
0.2365
CY2024Q1 iboc Maximum Percentage Of Capital Securities Issued By Trust Qualifying As Tier One Capital
MaximumPercentageOfCapitalSecuritiesIssuedByTrustQualifyingAsTierOneCapital
0.25
CY2024Q1 iboc Minimum Percentage Of Capital Securities Issued By Trust Qualifying As Tier Two Capital
MinimumPercentageOfCapitalSecuritiesIssuedByTrustQualifyingAsTierTwoCapital
0.25
CY2024Q1 us-gaap Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust
JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust
108868000

Files In Submission

Name View Source Status
0001558370-24-006529-index-headers.html Edgar Link pending
0001558370-24-006529-index.html Edgar Link pending
0001558370-24-006529.txt Edgar Link pending
0001558370-24-006529-xbrl.zip Edgar Link pending
Financial_Report.xlsx Edgar Link pending
iboc-20240331.xsd Edgar Link pending
iboc-20240331x10q.htm Edgar Link pending
iboc-20240331xex31da.htm Edgar Link pending
iboc-20240331xex31db.htm Edgar Link pending
iboc-20240331xex32da.htm Edgar Link pending
iboc-20240331xex32db.htm Edgar Link pending
MetaLinks.json Edgar Link pending
R1.htm Edgar Link pending
R10.htm Edgar Link pending
R11.htm Edgar Link pending
R12.htm Edgar Link pending
R13.htm Edgar Link pending
R14.htm Edgar Link pending
R15.htm Edgar Link pending
R16.htm Edgar Link pending
R17.htm Edgar Link pending
R18.htm Edgar Link pending
R19.htm Edgar Link pending
R2.htm Edgar Link pending
R20.htm Edgar Link pending
R21.htm Edgar Link pending
R22.htm Edgar Link pending
R23.htm Edgar Link pending
R24.htm Edgar Link pending
R25.htm Edgar Link pending
R26.htm Edgar Link pending
R27.htm Edgar Link pending
R28.htm Edgar Link pending
R29.htm Edgar Link pending
R3.htm Edgar Link pending
R30.htm Edgar Link pending
R31.htm Edgar Link pending
R32.htm Edgar Link pending
iboc-20240331_cal.xml Edgar Link unprocessable
iboc-20240331_def.xml Edgar Link unprocessable
iboc-20240331_lab.xml Edgar Link unprocessable
iboc-20240331_pre.xml Edgar Link unprocessable
iboc-20240331x10q_htm.xml Edgar Link completed
R33.htm Edgar Link pending
R34.htm Edgar Link pending
R35.htm Edgar Link pending
R36.htm Edgar Link pending
R37.htm Edgar Link pending
R38.htm Edgar Link pending
R39.htm Edgar Link pending
R4.htm Edgar Link pending
R40.htm Edgar Link pending
R41.htm Edgar Link pending
R42.htm Edgar Link pending
R43.htm Edgar Link pending
R44.htm Edgar Link pending
R45.htm Edgar Link pending
R46.htm Edgar Link pending
R47.htm Edgar Link pending
R48.htm Edgar Link pending
R49.htm Edgar Link pending
R5.htm Edgar Link pending
R50.htm Edgar Link pending
R6.htm Edgar Link pending
R7.htm Edgar Link pending
R8.htm Edgar Link pending
R9.htm Edgar Link pending
report.css Edgar Link pending
Show.js Edgar Link pending
FilingSummary.xml Edgar Link unprocessable