$IBOC
INTERNATIONAL BANCSHARES CORP Stock $iboc

$iboc Overview Financials Valuation SEC Filings Company Website

2024 Q1 Form 10-K Financial Statement

#000155837024001698 Filed on February 26, 2024

Income Statement

Concept	2024 Q1	2023 Q4	2023
Revenue	$212.1M		$800.2M
YoY Change	12.72%		52.19%
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	$5.629M	$5.582M	$21.94M
YoY Change	2.98%	2.12%	0.56%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$48.48M		$136.7M
YoY Change	111.12%		258.16%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$123.2M	$135.7M	$523.5M
YoY Change	-4.42%	0.62%	36.82%
Income Tax	$25.90M	$29.36M	$111.7M
% Of Pretax Income	21.02%	21.63%	21.35%
Net Earnings	$97.33M	$106.4M	$411.8M
YoY Change	-4.24%	0.91%	37.15%
Net Earnings / Revenue	45.89%		51.46%
Basic Earnings Per Share	$1.57		$6.63
Diluted Earnings Per Share	$1.56	$1.71	$6.62
COMMON SHARES
Basic Shares Outstanding	62.17M	62.06M	62.08M
Diluted Shares Outstanding	62.27M		62.22M

Balance Sheet

Concept	2024 Q1	2023 Q4	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$909.0M	$651.1M
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	$438.0M	$437.1M	$437.1M
YoY Change	1.76%	1.27%	1.27%
Goodwill	$282.5M	$282.5M
YoY Change	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets			$55.56M
YoY Change			-43.67%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$15.36B	$15.07B	$15.07B
YoY Change	1.49%	-2.81%	-2.81%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$585.0M	$530.4M	$530.4M
YoY Change	52.53%	23.01%	23.01%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$585.0M	$530.4M	$530.4M
YoY Change	52.53%	23.01%	23.01%
LONG-TERM LIABILITIES
Long-Term Debt	$108.9M	$108.9M	$108.9M
YoY Change	-19.14%	-19.14%	-19.14%
Other Long-Term Liabilities	$157.1M	$143.8M	$143.8M
YoY Change	-6.89%	-34.6%	-34.6%
Total Long-Term Liabilities	$266.0M	$252.7M	$252.7M
YoY Change	-12.33%	-28.73%	-28.73%
TOTAL LIABILITIES
Total Short-Term Liabilities	$585.0M	$530.4M	$530.4M
Total Long-Term Liabilities	$266.0M	$252.7M	$252.7M
Total Liabilities	$12.88B	$12.62B	$12.62B
YoY Change	-0.78%	-6.23%	-6.23%
SHAREHOLDERS EQUITY
Retained Earnings	$3.085B	$3.029B
YoY Change	11.87%	12.37%
Common Stock	$96.57M	$96.47M
YoY Change	0.15%	0.05%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.484B	$2.448B	$2.448B
YoY Change
Total Liabilities & Shareholders Equity	$15.36B	$15.07B	$15.07B
YoY Change	1.49%	-2.81%	-2.81%

Cashflow Statement

Concept	2024 Q1	2023 Q4	2023
OPERATING ACTIVITIES
Net Income	$97.33M	$106.4M	$411.8M
YoY Change	-4.24%	0.91%	37.15%
Depreciation, Depletion And Amortization	$5.629M	$5.582M	$21.94M
YoY Change	2.98%	2.12%	0.56%
Cash From Operating Activities	$135.4M	$132.8M	$474.4M
YoY Change	-5.11%	33.53%	22.29%
INVESTING ACTIVITIES
Capital Expenditures	$6.541M	$8.418M	$27.50M
YoY Change	52.47%	31.22%	43.12%
Acquisitions
YoY Change
Other Investing Activities	-$77.08M	-$106.3M	-$1.040B
YoY Change	-86.33%	-79.87%	6.88%
Cash From Investing Activities	-$83.62M	-$114.7M	-$1.067B
YoY Change	-85.29%	-78.54%	7.58%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$4.611M
YoY Change			-91.14%
Debt Paid & Issued, Net			$25.77M
YoY Change
Cash From Financing Activities	206.1M	-65.58M	-843.9M
YoY Change	-144.13%	-90.9%	63.09%
NET CHANGE
Cash From Operating Activities	135.4M	132.8M	474.4M
Cash From Investing Activities	-83.62M	-114.7M	-1.067B
Cash From Financing Activities	206.1M	-65.58M	-843.9M
Net Change In Cash	257.9M	-47.55M	-1.437B
YoY Change	-128.89%	-95.89%	28.1%
FREE CASH FLOW
Cash From Operating Activities	$135.4M	$132.8M	$474.4M
Capital Expenditures	$6.541M	$8.418M	$27.50M
Free Cash Flow	$128.9M	$124.4M	$446.9M
YoY Change	-6.9%	33.69%	21.21%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
CY2023	dei	Entity Central Index Key EntityCentralIndexKey	0000315709
CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2023	dei	Amendment Flag AmendmentFlag	false
CY2023Q4	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false
CY2023Q4	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2023Q4	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2023Q4	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false
CY2023	dei	Document Type DocumentType	10-K
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2023	dei	Document Period End Date DocumentPeriodEndDate	2023-12-31
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023	dei	Document Transition Report DocumentTransitionReport	false
CY2023	dei	Entity File Number EntityFileNumber	0-09439
CY2023	dei	Entity Registrant Name EntityRegistrantName	INTERNATIONAL BANCSHARES CORPORATION
CY2023	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	TX
CY2023	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	74-2157138
CY2023	dei	Entity Address Address Line1 EntityAddressAddressLine1	1200 San Bernardo Avenue
CY2023	dei	Entity Address City Or Town EntityAddressCityOrTown	Laredo
CY2023	dei	Entity Address State Or Province EntityAddressStateOrProvince	TX
CY2023	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	78042 - 1359
CY2023	dei	City Area Code CityAreaCode	956
CY2023	dei	Local Phone Number LocalPhoneNumber	722-7611
CY2023	dei	Security12b Title Security12bTitle	Common Stock, $1.00 par value
CY2023	dei	Trading Symbol TradingSymbol	IBOC
CY2023	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2023	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2023	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2023	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2023	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2023	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2023	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2023	dei	Entity Small Business EntitySmallBusiness	false
CY2023	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2023	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	true
CY2023	dei	Document Fin Stmt Restatement Recovery Analysis Flag DocumentFinStmtRestatementRecoveryAnalysisFlag	true
CY2023	dei	Entity Shell Company EntityShellCompany	false
CY2023Q2	dei	Entity Public Float EntityPublicFloat	2742387000
CY2024Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	62168232
CY2023	dei	Auditor Name AuditorName	RSM US LLP
CY2023	dei	Auditor Location AuditorLocation	Austin, Texas
CY2023	dei	Auditor Firm AuditorFirmId	49
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CY2022	us-gaap	Noninterest Expense NoninterestExpense	270469000
CY2021	us-gaap	Noninterest Expense NoninterestExpense	263316000
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	523512000
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	382639000
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	322327000
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	111744000
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	82407000
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	68405000
CY2023	us-gaap	Net Income Loss NetIncomeLoss	411768000
CY2022	us-gaap	Net Income Loss NetIncomeLoss	300232000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	253922000
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	62082827
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	62658414
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	63352737
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.63
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.79
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.01
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	62221601
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	62810234
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	63486366
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.62
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.78
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.00
CY2023	us-gaap	Net Income Loss NetIncomeLoss	411768000
CY2022	us-gaap	Net Income Loss NetIncomeLoss	300232000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	253922000
CY2023	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	19300000
CY2022	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-116568000
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-14040000
CY2023	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	72606000
CY2022	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-438517000
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-52818000
CY2023	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	1000
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	3000
CY2023	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-2000
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-13000
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	72608000
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-438517000
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-52805000
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	484376000
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-138285000
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	201117000
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	2177998000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	253922000
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.15
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	72838000
CY2021	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	17984
CY2021	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	716000
CY2021	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	2414000
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	506000
CY2021	iboc	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Net Of Reclassification Adjustment OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringNetOfReclassificationAdjustment	-52805000
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	2308481000
CY2022	us-gaap	Net Income Loss NetIncomeLoss	300232000
CY2022	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.20
CY2022	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	75375000
CY2022	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	1299344
CY2022	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	52048000
CY2022	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1537000
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	449000
CY2022	iboc	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Net Of Reclassification Adjustment OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringNetOfReclassificationAdjustment	-438517000
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	2044759000
CY2023	us-gaap	Net Income Loss NetIncomeLoss	411768000
CY2023	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.26
CY2023	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	78247000
CY2023	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	112567
CY2023	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	4611000
CY2023	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1167000
CY2023	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	330000
CY2023	iboc	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Net Of Reclassification Adjustment OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringNetOfReclassificationAdjustment	72608000
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	2447774000
CY2023	us-gaap	Profit Loss ProfitLoss	411768000
CY2022	us-gaap	Profit Loss ProfitLoss	300232000
CY2021	us-gaap	Profit Loss ProfitLoss	253922000
CY2023	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	34576000
CY2022	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	21651000
CY2021	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	7955000
CY2023	us-gaap	Other Real Estate Covered Valuation Adjustments OtherRealEstateCoveredValuationAdjustments	-2538000
CY2022	us-gaap	Other Real Estate Covered Valuation Adjustments OtherRealEstateCoveredValuationAdjustments	-1627000
CY2021	us-gaap	Other Real Estate Covered Valuation Adjustments OtherRealEstateCoveredValuationAdjustments	-2655000
CY2023	us-gaap	Depreciation Nonproduction DepreciationNonproduction	21944000
CY2022	us-gaap	Depreciation Nonproduction DepreciationNonproduction	21821000
CY2021	us-gaap	Depreciation Nonproduction DepreciationNonproduction	25028000
CY2023	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	198000
CY2022	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	3110000
CY2021	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-601000
CY2023	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	7370000
CY2022	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	2096000
CY2021	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	170000
CY2023	iboc	Accretion Of Discounts Investments AccretionOfDiscountsInvestments	1913000
CY2022	iboc	Accretion Of Discounts Investments AccretionOfDiscountsInvestments	1785000
CY2021	iboc	Accretion Of Discounts Investments AccretionOfDiscountsInvestments	702000
CY2023	iboc	Amortization Of Investment Securities Premiums AmortizationOfInvestmentSecuritiesPremiums	6901000
CY2022	iboc	Amortization Of Investment Securities Premiums AmortizationOfInvestmentSecuritiesPremiums	13907000
CY2021	iboc	Amortization Of Investment Securities Premiums AmortizationOfInvestmentSecuritiesPremiums	36380000
CY2023	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-3000
CY2021	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-16000
CY2023	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	59000
CY2022	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-721000
CY2021	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-123000
CY2021	us-gaap	Proceeds From Insurance Settlement Operating Activities ProceedsFromInsuranceSettlementOperatingActivities	2870000
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	330000
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	449000
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	506000
CY2023	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	983000
CY2022	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	15894000
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	68034000
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	22950000
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	10619000
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	3542000
CY2023	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	19515000
CY2022	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	15194000
CY2021	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-7288000
CY2023	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	7297000
CY2022	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-12975000
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-25220000
CY2023	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	10757000
CY2022	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	42018000
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-5519000
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	474432000
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	387941000
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	291681000
CY2023	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	51167000
CY2022	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	2200000
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	1200000
CY2023	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	2045000
CY2022	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	800000
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	5890000
CY2023	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	1079215000
CY2022	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	1455249000
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	2856135000
CY2023	us-gaap	Proceeds From Maturities Prepayments And Calls Of Mortgage Backed Securities Mbs ProceedsFromMaturitiesPrepaymentsAndCallsOfMortgageBackedSecuritiesMBS	629194000
CY2022	us-gaap	Proceeds From Maturities Prepayments And Calls Of Mortgage Backed Securities Mbs ProceedsFromMaturitiesPrepaymentsAndCallsOfMortgageBackedSecuritiesMBS	756092000
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Mortgage Backed Securities Mbs ProceedsFromMaturitiesPrepaymentsAndCallsOfMortgageBackedSecuritiesMBS	1612679000
CY2023	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	632976000
CY2022	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	228340000
CY2021	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	-309575000
CY2023	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	31256000
CY2022	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	79669000
CY2021	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	61783000
CY2023	iboc	Distributions From Other Investments DistributionsFromOtherInvestments	12175000
CY2022	iboc	Distributions From Other Investments DistributionsFromOtherInvestments	8886000
CY2021	iboc	Distributions From Other Investments DistributionsFromOtherInvestments	63356000
CY2023	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	27497000
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	19213000
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	10390000
CY2023	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	269000
CY2022	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	13496000
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	11446000
CY2023	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	8888000
CY2022	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	8969000
CY2021	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	8273000
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1067206000
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-992028000
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-915889000
CY2023	iboc	Increase Decrease In Noninterest Bearing Demand Deposits IncreaseDecreaseInNoninterestBearingDemandDeposits	-815210000
CY2022	iboc	Increase Decrease In Noninterest Bearing Demand Deposits IncreaseDecreaseInNoninterestBearingDemandDeposits	7529000
CY2021	iboc	Increase Decrease In Noninterest Bearing Demand Deposits IncreaseDecreaseInNoninterestBearingDemandDeposits	1122712000
CY2023	iboc	Increase Decrease In Saving And Interest Bearing Demand Deposits IncreaseDecreaseInSavingAndInterestBearingDemandDeposits	-377236000
CY2022	iboc	Increase Decrease In Saving And Interest Bearing Demand Deposits IncreaseDecreaseInSavingAndInterestBearingDemandDeposits	155220000
CY2021	iboc	Increase Decrease In Saving And Interest Bearing Demand Deposits IncreaseDecreaseInSavingAndInterestBearingDemandDeposits	738043000
CY2023	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	356993000
CY2022	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	-120619000
CY2021	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	35262000
CY2023	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	99225000
CY2022	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	-8481000
CY2021	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	11524000
CY2023	us-gaap	Increase Decrease In Loans From Other Federal Home Loan Banks IncreaseDecreaseInLoansFromOtherFederalHomeLoanBanks	-199000
CY2022	us-gaap	Increase Decrease In Loans From Other Federal Home Loan Banks IncreaseDecreaseInLoansFromOtherFederalHomeLoanBanks	-425194000
CY2021	us-gaap	Increase Decrease In Loans From Other Federal Home Loan Banks IncreaseDecreaseInLoansFromOtherFederalHomeLoanBanks	-189000
CY2023	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	25774000
CY2023	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	4611000
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	52048000
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	716000
CY2023	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	1167000
CY2022	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	1537000
CY2021	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	2414000
CY2023	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	78247000
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	75375000
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	72838000
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-843892000
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-517431000
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1836212000
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-1436666000
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-1121518000
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	1212004000
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2087724000
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3209242000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1997238000
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
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3209242000
CY2023	us-gaap	Interest Paid Net InterestPaidNet	117936000
CY2022	us-gaap	Interest Paid Net InterestPaidNet	36355000
CY2021	us-gaap	Interest Paid Net InterestPaidNet	29007000
CY2023	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	69799000
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	22118000
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	47394000
CY2022	iboc	Investment Securities Purchases Not Yet Settled InvestmentSecuritiesPurchasesNotYetSettled	80000000
CY2023	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	600000
CY2022	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	835000
CY2021	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	16388000
CY2022	iboc	Transfer From Bank Premise And Equipment To Other Assets TransferFromBankPremiseAndEquipmentToOtherAssets	2476000
CY2023Q4	iboc	Other Real Estate And Foreclosed Assets In Use OtherRealEstateAndForeclosedAssetsInUse	26728000
CY2023	iboc	Entity Number Of Insurance Related Subsidiaries EntityNumberOfInsuranceRelatedSubsidiaries	1
CY2023	iboc	Number Of Components Other Than Temporary Impairment Segregated NumberOfComponentsOtherThanTemporaryImpairmentSegregated	2
CY2023	iboc	Period Of Charge Off For Past Due Unsecured Commercial Loans PeriodOfChargeOffForPastDueUnsecuredCommercialLoans	P90D
CY2023	iboc	Period Of Charge Off For Past Due Unsecured Commercial Loans PeriodOfChargeOffForPastDueUnsecuredCommercialLoans	P90D
CY2023	iboc	Minimum Period For Past Due Unsecured Loans Outstanding Not Placed On Non Accrual Status Under Special Circumstances MinimumPeriodForPastDueUnsecuredLoansOutstandingNotPlacedOnNonAccrualStatusUnderSpecialCircumstances	P90D
CY2023	iboc	Maximum Period Outstanding Non Consumer Loans Are Evaluated For Non Accrual Status MaximumPeriodOutstandingNonConsumerLoansAreEvaluatedForNonAccrualStatus	P90D
CY2022Q4	iboc	Other Real Estate And Foreclosed Assets In Use OtherRealEstateAndForeclosedAssetsInUse	30144000
CY2023Q4	us-gaap	Other Foreclosed Assets OtherForeclosedAssets	236000
CY2022Q4	us-gaap	Other Foreclosed Assets OtherForeclosedAssets	4637000
CY2023	iboc	Percentage Of Likelihood Of Realization Of Recognized Tax Benefit PercentageOfLikelihoodOfRealizationOfRecognizedTaxBenefit	0.50
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0
CY2023Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0
CY2021	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	0
CY2022	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	0
CY2023	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	0
CY2021	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	0
CY2022	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	0
CY2023	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	0
CY2022	us-gaap	Proceeds From Sale Of Mortgage Backed Securities Mbs Categorized As Available For Sale ProceedsFromSaleOfMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale	0
CY2021	us-gaap	Proceeds From Sale Of Mortgage Backed Securities Mbs Categorized As Available For Sale ProceedsFromSaleOfMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale	0
CY2023	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0
CY2021Q4	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0
CY2023	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0
CY2023	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1
CY2023	iboc	Number Of Active Operating Subsidiaries NumberOfActiveOperatingSubsidiaries	5
CY2023	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt 0pt 12pt 0pt;"><i style="font-style:italic;">Reclassifications</i></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;text-indent:36pt;margin:0pt 0pt 12pt 0pt;">Certain amounts in the prior year’s presentations have been reclassified to conform to the current presentation. These reclassifications had no effect on previously reported net income or shareholders’ equity.</p>
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
CY2023Q4	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	2075000
CY2023Q4	us-gaap	Held To Maturity Securities Debt Maturities Next Rolling Twelve Months Fair Value HeldToMaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue	2075000
CY2023Q4	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	1325000
CY2023Q4	us-gaap	Held To Maturity Securities Debt Maturities Rolling Year Two Through Five Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue	1325000
CY2023Q4	iboc	Debt Securities Available For Sale Maturity Excluding Accrued Interest Allocated And Single Maturity Date Rolling After5 Through10 Years Amortized Cost DebtSecuritiesAvailableForSaleMaturityExcludingAccruedInterestAllocatedAndSingleMaturityDateRollingAfter5Through10YearsAmortizedCost	440000
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue	440000
CY2023Q4	iboc	Debt Securities Available For Sale Maturity Excluding Accrued Interest Allocated And Single Maturity Date Rolling After10 Years Amortized Cost DebtSecuritiesAvailableForSaleMaturityExcludingAccruedInterestAllocatedAndSingleMaturityDateRollingAfter10YearsAmortizedCost	160561000
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling After Year Ten Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue	161802000
CY2023Q4	iboc	Debt Securities Available For Sale Excluding Accrued Interest Maturity Without Single Maturity Date Amortized Cost DebtSecuritiesAvailableForSaleExcludingAccruedInterestMaturityWithoutSingleMaturityDateAmortizedCost	5169813000
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	4660099000
CY2023Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	3400000
CY2023Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	3400000
CY2023Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	5330814000
CY2023Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	4822341000
CY2022Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestBeforeAllowanceForCreditLoss	3400000
CY2022Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	3400000
CY2022Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	3400000
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	5018996000
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	4072000
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	605272000
CY2023	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	2045000
CY2022	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	800000
CY2021	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	5890000
CY2023	us-gaap	Proceeds From Sale Of Mortgage Backed Securities Mbs Categorized As Available For Sale ProceedsFromSaleOfMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale	0
CY2022	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0
CY2021	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0
CY2023	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	3000
CY2022	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0
CY2021	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	16000
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	578099000
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	8268000
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	3520722000
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	511348000
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	4098821000
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	519616000
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	1526071000
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	93419000
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	2566975000
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	511853000
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	4093046000
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	605272000
CY2023Q4	us-gaap	Equity Securities Fv Ni Current And Noncurrent EquitySecuritiesFvNiCurrentAndNoncurrent	5417000
CY2022Q4	us-gaap	Equity Securities Fv Ni Current And Noncurrent EquitySecuritiesFvNiCurrentAndNoncurrent	5358000
CY2023	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	59000
CY2023	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	59000
CY2022	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-721000
CY2022	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-721000
CY2021	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-123000
CY2021	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-123000
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	8058961000
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	7430603000
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	125972000
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	10184000
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	6705000
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff After Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffAfterRecovery	3479000
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	34576000
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	157069000
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	110374000
CY2022	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	9479000
CY2022	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	3426000
CY2022	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff After Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffAfterRecovery	6053000
CY2022	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	21651000
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	125972000
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	109059000
CY2021	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	9024000
CY2021	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	2384000
CY2021	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff After Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffAfterRecovery	6640000
CY2021	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	7955000
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	110374000
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
CY2022Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	51830000
CY2022Q4	iboc	Financing Receivable Individually Evaluated For Impairment Allowance For Credit Losses FinancingReceivableIndividuallyEvaluatedForImpairmentAllowanceForCreditLosses	2445000
CY2022Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	7378773000
CY2022Q4	iboc	Financing Receivable Collectively Evaluated For Impairment Allowance For Credit Losses FinancingReceivableCollectivelyEvaluatedForImpairmentAllowanceForCreditLosses	123527000
CY2023Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	47170000
CY2022Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	51648000
CY2021Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	1921000
CY2023	iboc	Financing Receivable Recorded Investment Nonaccrual Status Reduction In Interest Income FinancingReceivableRecordedInvestmentNonaccrualStatusReductionInInterestIncome	6614000
CY2022	iboc	Financing Receivable Recorded Investment Nonaccrual Status Reduction In Interest Income FinancingReceivableRecordedInvestmentNonaccrualStatusReductionInInterestIncome	116000
CY2021	iboc	Financing Receivable Recorded Investment Nonaccrual Status Reduction In Interest Income FinancingReceivableRecordedInvestmentNonaccrualStatusReductionInInterestIncome	169000
CY2023Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	5597000
CY2022Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	6132000
CY2021Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	8642000
CY2023Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	47170000
CY2022Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	51648000
CY2022Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	3213000
CY2023Q4	us-gaap	Financing Receivable Threshold Period Past Due Writeoff FinancingReceivableThresholdPeriodPastDueWriteoff	P90D
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
CY2022Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	6132000
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	7430603000
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear	3364226000
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	1928023000
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	1328045000
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	609341000
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear	295840000
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear	533486000
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	8058961000
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	3048975000
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	2081483000
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	988625000
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear	543277000
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear	468848000
CY2022Q4	iboc	Financing Receivable Excluding Accrued Interest Originated Morethan Six Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestOriginatedMorethanSixYearsBeforeCurrentFiscalYear	299395000
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	7430603000
CY2023Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	4368532000
CY2022Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	4745768000
CY2023Q4	iboc	Time Deposits Less Than100000 Domestic TimeDepositsLessThan100000Domestic	289565000
CY2022Q4	iboc	Time Deposits Less Than100000 Domestic TimeDepositsLessThan100000Domestic	276660000
CY2023Q4	iboc	Time Deposits Less Than100000 Foreign TimeDepositsLessThan100000Foreign	268483000
CY2023Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	579387000
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	556665000
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	437094000
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	431612000
CY2023Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	60697000
CY2023Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	60697000
CY2022Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	60697000
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	60697000
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	0
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	0
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	0
CY2022	us-gaap	Goodwill Period Increase Decrease GoodwillPeriodIncreaseDecrease	0
CY2023	us-gaap	Goodwill Period Increase Decrease GoodwillPeriodIncreaseDecrease	0
CY2023Q4	us-gaap	Noninterest Bearing Deposit Liabilities Domestic NoninterestBearingDepositLiabilitiesDomestic	4126635000
CY2022Q4	us-gaap	Noninterest Bearing Deposit Liabilities Domestic NoninterestBearingDepositLiabilitiesDomestic	4744299000
CY2023Q4	us-gaap	Noninterest Bearing Deposit Liabilities Foreign NoninterestBearingDepositLiabilitiesForeign	904210000
CY2022Q4	us-gaap	Noninterest Bearing Deposit Liabilities Foreign NoninterestBearingDepositLiabilitiesForeign	1101756000
CY2023Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	5030845000
CY2022Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	5846055000
CY2023Q4	us-gaap	Interest Bearing Deposit Liabilities Domestic InterestBearingDepositLiabilitiesDomestic	3161411000
CY2022Q4	us-gaap	Interest Bearing Deposit Liabilities Domestic InterestBearingDepositLiabilitiesDomestic	3448717000
CY2023Q4	us-gaap	Interest Bearing Deposit Liabilities Foreign InterestBearingDepositLiabilitiesForeign	1207121000
CY2022Q4	us-gaap	Interest Bearing Deposit Liabilities Foreign InterestBearingDepositLiabilitiesForeign	1297051000
CY2022Q4	iboc	Time Deposits Less Than100000 Foreign TimeDepositsLessThan100000Foreign	246832000
CY2023Q4	us-gaap	Time Deposits TimeDeposits	2425177000
CY2022Q4	us-gaap	Time Deposits TimeDeposits	2068184000
CY2023Q4	us-gaap	Deposits Deposits	11824554000
CY2022Q4	us-gaap	Deposits Deposits	12660007000
CY2023	iboc	Interest Expense Now Accounts Money Market Accounts And Savings Deposit Domestic InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDepositDomestic	42148000
CY2022	iboc	Interest Expense Now Accounts Money Market Accounts And Savings Deposit Domestic InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDepositDomestic	9196000
CY2021	iboc	Interest Expense Now Accounts Money Market Accounts And Savings Deposit Domestic InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDepositDomestic	3268000
CY2023	iboc	Interest Expense Now Accounts Money Market Accounts And Savings Deposit Foreign InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDepositForeign	18189000
CY2022	iboc	Interest Expense Now Accounts Money Market Accounts And Savings Deposit Foreign InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDepositForeign	3490000
CY2021	iboc	Interest Expense Now Accounts Money Market Accounts And Savings Deposit Foreign InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDepositForeign	842000
CY2023	us-gaap	Interest Expense Now Accounts Money Market Accounts And Savings Deposits InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDeposits	60337000
CY2022	us-gaap	Interest Expense Now Accounts Money Market Accounts And Savings Deposits InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDeposits	12686000
CY2021	us-gaap	Interest Expense Now Accounts Money Market Accounts And Savings Deposits InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDeposits	4110000
CY2023	iboc	Interest Expense Time Deposits100000 Or More Domestic InterestExpenseTimeDeposits100000OrMoreDomestic	18597000
CY2022	iboc	Interest Expense Time Deposits100000 Or More Domestic InterestExpenseTimeDeposits100000OrMoreDomestic	5528000
CY2021	iboc	Interest Expense Time Deposits100000 Or More Domestic InterestExpenseTimeDeposits100000OrMoreDomestic	6652000
CY2023	iboc	Interest Expense Time Deposits100000 Or More Foreign InterestExpenseTimeDeposits100000OrMoreForeign	25471000
CY2022	iboc	Interest Expense Time Deposits100000 Or More Foreign InterestExpenseTimeDeposits100000OrMoreForeign	3867000
CY2021	iboc	Interest Expense Time Deposits100000 Or More Foreign InterestExpenseTimeDeposits100000OrMoreForeign	3452000
CY2023	iboc	Interest Expense Time Deposits Less Than100000 Domestic InterestExpenseTimeDepositsLessThan100000Domestic	4592000
CY2022	iboc	Interest Expense Time Deposits Less Than100000 Domestic InterestExpenseTimeDepositsLessThan100000Domestic	1027000
CY2021	iboc	Interest Expense Time Deposits Less Than100000 Domestic InterestExpenseTimeDepositsLessThan100000Domestic	984000
CY2023	iboc	Interest Expense Time Deposits Less Than100000 Foreign InterestExpenseTimeDepositsLessThan100000Foreign	4498000
CY2022	iboc	Interest Expense Time Deposits Less Than100000 Foreign InterestExpenseTimeDepositsLessThan100000Foreign	735000
CY2021	iboc	Interest Expense Time Deposits Less Than100000 Foreign InterestExpenseTimeDepositsLessThan100000Foreign	567000
CY2023	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	53158000
CY2022	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	11157000
CY2021	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	11655000
CY2023	us-gaap	Interest Expense Deposits InterestExpenseDeposits	113495000
CY2022	us-gaap	Interest Expense Deposits InterestExpenseDeposits	23843000
CY2021	us-gaap	Interest Expense Deposits InterestExpenseDeposits	15765000
CY2023Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	2301914000
CY2023Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	85385000
CY2023Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	23102000
CY2023Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	14200000
CY2023Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	573000
CY2023Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	3000
CY2023Q4	us-gaap	Time Deposits TimeDeposits	2425177000
CY2023	us-gaap	Net Income Loss NetIncomeLoss	411768000
CY2023Q4	us-gaap	Contractual Maturities Time Deposits100000 Or More Three Months Or Less ContractualMaturitiesTimeDeposits100000OrMoreThreeMonthsOrLess	859734000
CY2023Q4	us-gaap	Contractual Maturities Time Deposits100000 Or More Three Months Through Six Months ContractualMaturitiesTimeDeposits100000OrMoreThreeMonthsThroughSixMonths	517994000
CY2023Q4	us-gaap	Contractual Maturities Time Deposits100000 Or More Six Months Through12 Months ContractualMaturitiesTimeDeposits100000OrMoreSixMonthsThrough12Months	409193000
CY2023Q4	us-gaap	Contractual Maturities Time Deposits100000 Or More After12 Months ContractualMaturitiesTimeDeposits100000OrMoreAfter12Months	80208000
CY2023Q4	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	1867129000
CY2023Q4	iboc	Time Deposits250000 Or Exceed Fdic Insurance TimeDeposits250000OrExceedFdicInsurance	749169000000
CY2022Q4	iboc	Time Deposits250000 Or Exceed Fdic Insurance TimeDeposits250000OrExceedFdicInsurance	585456000000
CY2023	iboc	Securities Sold Under Agreements To Repurchase Average Outstanding Amount SecuritiesSoldUnderAgreementsToRepurchaseAverageOutstandingAmount	469152000
CY2022	iboc	Securities Sold Under Agreements To Repurchase Average Outstanding Amount SecuritiesSoldUnderAgreementsToRepurchaseAverageOutstandingAmount	476877000
CY2023Q4	iboc	Securities Sold Under Agreements To Repurchase Maximum Outstanding Amount At Any Month End SecuritiesSoldUnderAgreementsToRepurchaseMaximumOutstandingAmountAtAnyMonthEnd	544418000
CY2022Q4	iboc	Securities Sold Under Agreements To Repurchase Maximum Outstanding Amount At Any Month End SecuritiesSoldUnderAgreementsToRepurchaseMaximumOutstandingAmountAtAnyMonthEnd	513368000
CY2023	us-gaap	Schedule Of Repurchase Agreements ScheduleOfRepurchaseAgreements	<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;min-height:0.0pt;margin:0pt;"><span style="font-size:0pt;visibility:hidden;"></span></p><table style="border-collapse:collapse;font-size:16pt;height:max-content;margin-left:auto;margin-right:auto;padding-left:0pt;padding-right:0pt;width:100%;"><tr style="height:1pt;"><td style="vertical-align:bottom;width:45%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.14%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.25%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.17%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.12%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:13.06%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.84%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></td></tr><tr><td style="vertical-align:bottom;width:45%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:9pt;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.14%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td colspan="5" style="vertical-align:bottom;white-space:nowrap;width:23.38%;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">Collateral Securities</b></p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td colspan="4" style="vertical-align:bottom;white-space:nowrap;width:25.56%;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">Repurchase Borrowing</b></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.84%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"> </p></td></tr><tr><td style="vertical-align:bottom;width:45%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:9pt;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.14%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td colspan="2" style="vertical-align:bottom;white-space:nowrap;width:10.69%;border-top:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">Book Value of</b></p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;border-top:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td colspan="2" style="vertical-align:bottom;white-space:nowrap;width:10.63%;border-top:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">Fair Value of</b></p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td colspan="2" style="vertical-align:bottom;white-space:nowrap;width:10.37%;border-top:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">Balance of</b></p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.12%;border-top:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:13.06%;border-top:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">Weighted Average</b></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.84%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"> </p></td></tr><tr><td style="vertical-align:bottom;width:45%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:9pt;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.14%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td colspan="2" style="vertical-align:bottom;white-space:nowrap;width:10.69%;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">Securities Sold</b></p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td colspan="2" style="vertical-align:bottom;white-space:nowrap;width:10.63%;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">Securities Sold</b></p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td colspan="2" style="vertical-align:bottom;white-space:nowrap;width:10.37%;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">Liability</b></p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.12%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:13.06%;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">Interest Rate</b></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.84%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"> </p></td></tr><tr style="height:0pt;visibility:hidden;"><td colspan="13" style="padding:0pt;"></td></tr><tr><td style="vertical-align:bottom;width:45%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:9pt;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.14%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td colspan="10" style="vertical-align:bottom;white-space:nowrap;width:51%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">(Dollars in Thousands)</b></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.84%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"> </p></td></tr><tr><td style="vertical-align:bottom;width:45%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;padding-left:7.2pt;text-indent:-7.2pt;margin:0pt;">December 31, 2023 term:</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.14%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.25%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.17%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.12%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:13.06%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.84%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td></tr><tr><td style="vertical-align:bottom;width:45%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;padding-left:7.2pt;text-indent:-7.2pt;margin:0pt 0pt 0pt 12pt;">Overnight agreements</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.14%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.25%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">$</p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 667,647</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">$</p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 587,673</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">$</p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.17%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 518,650</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.12%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:13.06%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 3.76</p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.84%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">%</p></td></tr><tr><td style="vertical-align:bottom;width:45%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;padding-left:7.2pt;text-indent:-7.2pt;margin:0pt 0pt 0pt 12pt;">1 to 29 days</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.14%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.25%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 24,842</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 20,454</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.17%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 10,696</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.12%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:13.06%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 4.50</p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.84%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td></tr><tr><td style="vertical-align:bottom;width:45%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;padding-left:7.2pt;text-indent:-7.2pt;margin:0pt 0pt 0pt 12pt;">30 to 90 days</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.14%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.25%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> —</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> —</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.17%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> —</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.12%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:13.06%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> —</p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.84%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td></tr><tr><td style="vertical-align:bottom;width:45%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;padding-left:7.2pt;text-indent:-7.2pt;margin:0pt 0pt 0pt 12pt;">Over 90 days</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.14%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.25%;background:#cceeff;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;background:#cceeff;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 1,623</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;background:#cceeff;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;background:#cceeff;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 1,574</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;background:#cceeff;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.17%;background:#cceeff;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 1,070</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.12%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:13.06%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 4.00</p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.84%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td></tr><tr><td style="vertical-align:bottom;width:45%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;padding-left:7.2pt;text-indent:-7.2pt;margin:0pt 0pt 0pt 12pt;">Total</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.14%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.25%;border-bottom:3px double #000000;border-top:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">$</p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;border-bottom:3px double #000000;border-top:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 694,112</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;border-bottom:3px double #000000;border-top:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">$</p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;border-bottom:3px double #000000;border-top:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 609,701</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;border-bottom:3px double #000000;border-top:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">$</p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.17%;border-bottom:3px double #000000;border-top:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 530,416</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.12%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:13.06%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 3.78</p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.84%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">%</p></td></tr><tr><td style="vertical-align:bottom;width:45%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;padding-left:7.2pt;text-indent:-7.2pt;margin:0pt;">December 31, 2022 term:</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.14%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.25%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.17%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.12%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:13.06%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.84%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td></tr><tr><td style="vertical-align:bottom;width:45%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;padding-left:7.2pt;text-indent:-7.2pt;margin:0pt 0pt 0pt 12pt;">Overnight agreements</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.14%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.25%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">$</p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 664,491</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">$</p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 559,637</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">$</p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.17%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 419,703</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.12%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:13.06%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 1.61</p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.84%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">%</p></td></tr><tr><td style="vertical-align:bottom;width:45%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;padding-left:7.2pt;text-indent:-7.2pt;margin:0pt 0pt 0pt 12pt;">1 to 29 days</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.14%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.25%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> —</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> —</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.17%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> —</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.12%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:13.06%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> —</p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.84%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td></tr><tr><td style="vertical-align:bottom;width:45%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;padding-left:7.2pt;text-indent:-7.2pt;margin:0pt 0pt 0pt 12pt;">30 to 90 days</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.14%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.25%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> —</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> —</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.17%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> —</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.12%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:13.06%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> —</p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.84%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td></tr><tr><td style="vertical-align:bottom;width:45%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;padding-left:7.2pt;text-indent:-7.2pt;margin:0pt 0pt 0pt 12pt;">Over 90 days</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.14%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.25%;background:#cceeff;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;background:#cceeff;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 20,852</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;background:#cceeff;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;background:#cceeff;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 16,968</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;background:#cceeff;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.17%;background:#cceeff;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 11,488</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.12%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:13.06%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 1.32</p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.84%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td></tr><tr><td style="vertical-align:bottom;width:45%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;padding-left:7.2pt;text-indent:-7.2pt;margin:0pt 0pt 0pt 12pt;">Total</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.14%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.25%;border-bottom:3px double #000000;border-top:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">$</p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;border-bottom:3px double #000000;border-top:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 685,343</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;border-bottom:3px double #000000;border-top:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">$</p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.43%;border-bottom:3px double #000000;border-top:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 576,605</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.06%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.19%;border-bottom:3px double #000000;border-top:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">$</p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.17%;border-bottom:3px double #000000;border-top:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 431,191</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.12%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:13.06%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 1.60</p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.84%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">%</p></td></tr></table>
CY2023Q4	us-gaap	Assets Sold Under Agreements To Repurchase Carrying Amounts AssetsSoldUnderAgreementsToRepurchaseCarryingAmounts	694112000
CY2023Q4	us-gaap	Assets Sold Under Agreements To Repurchase Market Value AssetsSoldUnderAgreementsToRepurchaseMarketValue	609701000
CY2023Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	530416000
CY2023Q4	us-gaap	Assets Sold Under Agreements To Repurchase Interest Rate AssetsSoldUnderAgreementsToRepurchaseInterestRate	0.0378
CY2022Q4	us-gaap	Assets Sold Under Agreements To Repurchase Carrying Amounts AssetsSoldUnderAgreementsToRepurchaseCarryingAmounts	685343000
CY2022Q4	us-gaap	Assets Sold Under Agreements To Repurchase Market Value AssetsSoldUnderAgreementsToRepurchaseMarketValue	576605000
CY2022Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	431191000
CY2022Q4	us-gaap	Assets Sold Under Agreements To Repurchase Interest Rate AssetsSoldUnderAgreementsToRepurchaseInterestRate	0.0160
CY2023	iboc	Number Of Statutory Business Trusts Issuing Preferred Securities NumberOfStatutoryBusinessTrustsIssuingPreferredSecurities	4
CY2023Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	108868000
CY2022Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	134642000
CY2023	iboc	Maximum Number Of Consecutive Quarterly Periods Available For Deferral Of Payment Of Interest MaximumNumberOfConsecutiveQuarterlyPeriodsAvailableForDeferralOfPaymentOfInterest	20
CY2023	iboc	Maximum Percentage Of Capital Securities Issued By Trust Qualifying As Tier One Capital MaximumPercentageOfCapitalSecuritiesIssuedByTrustQualifyingAsTierOneCapital	0.25
CY2023	iboc	Minimum Percentage Of Capital Securities Issued By Trust Qualifying As Tier Two Capital MinimumPercentageOfCapitalSecuritiesIssuedByTrustQualifyingAsTierTwoCapital	0.25
CY2023Q4	iboc	Capital Securities Issued By Trust Qualifying As Tier One Capital CapitalSecuritiesIssuedByTrustQualifyingAsTierOneCapital	108868000
CY2022Q4	iboc	Capital Securities Issued By Trust Qualifying As Tier One Capital CapitalSecuritiesIssuedByTrustQualifyingAsTierOneCapital	134642000
CY2023Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	108868000
CY2023	us-gaap	Net Income Loss NetIncomeLoss	411768000
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	62082827
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.63
CY2023	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	138774
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	62221601
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.62
CY2022	us-gaap	Net Income Loss NetIncomeLoss	300232000
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	62658414
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.79
CY2022	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	151820
CY2022	us-gaap	Net Income Loss NetIncomeLoss	300232000
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	62810234
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.78
CY2021	us-gaap	Net Income Loss NetIncomeLoss	253922000
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	63352737
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.01
CY2021	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	133629
CY2021	us-gaap	Net Income Loss NetIncomeLoss	253922000
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	63486366
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.00
CY2023	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	82657000
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	66670000
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	59591000
CY2023	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6137000
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	5118000
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	5272000
CY2023	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	88794000
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	71788000
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	64863000
CY2023	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	23001000
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	10555000
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	3794000
CY2023	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-51000
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	64000
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-252000
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	22950000
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	10619000
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	3542000
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	111744000
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	82407000
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	68405000
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2023	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2023	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	110065000
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	80893000
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	68011000
CY2023	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	3663000
CY2022	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	2433000
CY2021	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	2970000
CY2023	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4808000
CY2022	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4094000
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	3966000
CY2023	iboc	Income Tax Reconciliation Noninterest Income Other IncomeTaxReconciliationNoninterestIncomeOther	2761000
CY2022	iboc	Income Tax Reconciliation Noninterest Income Other IncomeTaxReconciliationNoninterestIncomeOther	1391000
CY2021	iboc	Income Tax Reconciliation Noninterest Income Other IncomeTaxReconciliationNoninterestIncomeOther	1753000
CY2023	iboc	Income Tax Reconciliation Low Income Housing Investments IncomeTaxReconciliationLowIncomeHousingInvestments	1974000
CY2022	iboc	Income Tax Reconciliation Low Income Housing Investments IncomeTaxReconciliationLowIncomeHousingInvestments	1906000
CY2021	iboc	Income Tax Reconciliation Low Income Housing Investments IncomeTaxReconciliationLowIncomeHousingInvestments	203000
CY2023	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1321000
CY2022	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-662000
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	948000
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	111744000
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	82407000
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	68405000
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	32136000
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	25982000
CY2023Q4	iboc	Deferred Tax Assets Other Real Estate Owned DeferredTaxAssetsOtherRealEstateOwned	1649000
CY2022Q4	iboc	Deferred Tax Assets Other Real Estate Owned DeferredTaxAssetsOtherRealEstateOwned	1194000
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	581000
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	186000
CY2023Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	110584000
CY2022Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	130586000
CY2023Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	1352000
CY2022Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	2308000
CY2023Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	146302000
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	160256000
CY2023Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	14879000
CY2022Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	13615000
CY2023Q4	iboc	Deferred Tax Liabilities Impairment Charges Available For Sale Securities DeferredTaxLiabilitiesImpairmentChargesAvailableForSaleSecurities	19000
CY2022Q4	iboc	Deferred Tax Liabilities Impairment Charges Available For Sale Securities DeferredTaxLiabilitiesImpairmentChargesAvailableForSaleSecurities	19000
CY2023Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	14151000
CY2022Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	14125000
CY2023Q4	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	58376000
CY2022Q4	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	30319000
CY2023Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	3321000
CY2022Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	3555000
CY2023Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	90746000
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	61633000
CY2023Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	55556000
CY2022Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	98623000
CY2023Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	55556000
CY2022Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	98623000
CY2023	iboc	Allowance For Loan And Lease Losses Period Increase Decrease Loans Transferred To Other Real Estate Owned AllowanceForLoanAndLeaseLossesPeriodIncreaseDecreaseLoansTransferredToOtherRealEstateOwned	0
CY2022	iboc	Allowance For Loan And Lease Losses Period Increase Decrease Loans Transferred To Other Real Estate Owned AllowanceForLoanAndLeaseLossesPeriodIncreaseDecreaseLoansTransferredToOtherRealEstateOwned	2000
CY2021	iboc	Allowance For Loan And Lease Losses Period Increase Decrease Loans Transferred To Other Real Estate Owned AllowanceForLoanAndLeaseLossesPeriodIncreaseDecreaseLoansTransferredToOtherRealEstateOwned	2000
CY2023	iboc	Allowance For Loan Lease Losses Write Offs Prior To Foreclosure AllowanceForLoanLeaseLossesWriteOffsPriorToForeclosure	2538000
CY2022	iboc	Allowance For Loan Lease Losses Write Offs Prior To Foreclosure AllowanceForLoanLeaseLossesWriteOffsPriorToForeclosure	1627000
CY2021	iboc	Allowance For Loan Lease Losses Write Offs Prior To Foreclosure AllowanceForLoanLeaseLossesWriteOffsPriorToForeclosure	2655000
CY2023Q4	us-gaap	Other Receivables OtherReceivables	13335000
CY2022Q4	us-gaap	Other Receivables OtherReceivables	28708000
CY2023	iboc	Maximum Dividend Income To Be Received From Subsidiaries MaximumDividendIncomeToBeReceivedFromSubsidiaries	1229500000
CY2023Q4	iboc	Impaired Financing Receivable Recorded Investment Fair Value Disclosure ImpairedFinancingReceivableRecordedInvestmentFairValueDisclosure	46491000
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
CY2022Q4	iboc	Impaired Financing Receivable Recorded Investment Fair Value Disclosure ImpairedFinancingReceivableRecordedInvestmentFairValueDisclosure	51326000
CY2022Q4	iboc	Impaired Financing Receivable Recorded Investment Fair Value Disclosure ImpairedFinancingReceivableRecordedInvestmentFairValueDisclosure	51326000
CY2022Q4	iboc	Impaired Commercial Collateral Financing Receivable Appraisals To Determine Fair Value ImpairedCommercialCollateralFinancingReceivableAppraisalsToDetermineFairValue	0
CY2022Q4	iboc	Impaired Commercial Collateral Financing Receivable Appraisals To Determine Fair Value ImpairedCommercialCollateralFinancingReceivableAppraisalsToDetermineFairValue	0
CY2022Q4	iboc	Impaired Collateral Dependent Commercial Loans With Internal Evaluation Completed Within Last Twelve Months ImpairedCollateralDependentCommercialLoansWithInternalEvaluationCompletedWithinLastTwelveMonths	51326000

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0001558370-24-001698.txt	Edgar Link	pending
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Financial_Report.xlsx	Edgar Link	pending
iboc-20231231.xsd	Edgar Link	pending
iboc-20231231x10k.htm	Edgar Link	pending
iboc-20231231xex13.htm	Edgar Link	pending
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$IBOC
INTERNATIONAL BANCSHARES CORP Stock $iboc

2024 Q1 Form 10-K Financial Statement

#000155837024001698 Filed on February 26, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$IBOC INTERNATIONAL BANCSHARES CORP Stock $iboc

2024 Q1 Form 10-K Financial Statement

#000155837024001698 Filed on February 26, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$IBOC
INTERNATIONAL BANCSHARES CORP Stock $iboc