10-Q Filing

KIRBY CORP CIK: 56047 Q3 2025

Filing Information

Form Type	10-Q
Accession Number	`0001193125-25-273962`
Period End Date	20250930
Filing Date	20251110
Fiscal Year	2025
Fiscal Period	Q3
XBRL Instance	kex-20250930_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 168 Income Statement 136 Cash Flow Statement 128 Stockholders Equity 78 Comprehensive Income 56

Balance Sheet 168 line items

Line Item	Tag	Value	Unit	Period
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$74.44M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$74.44M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$47.02M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$47.02M	USD	Point-in-time
Common stock, par value per share (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.10	USD	Point-in-time
Common stock, par value per share (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.10	USD	Point-in-time
Common stock, par value per share (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.10	USD	Point-in-time
Common stock, par value per share (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.10	USD	Point-in-time
Trade - less allowance for doubtful accounts	`AccountsReceivableNetCurrent`	$489.86M	USD	Point-in-time
Trade - less allowance for doubtful accounts	`AccountsReceivableNetCurrent`	$489.86M	USD	Point-in-time
Trade - less allowance for doubtful accounts	`AccountsReceivableNetCurrent`	$524.07M	USD	Point-in-time
Trade - less allowance for doubtful accounts	`AccountsReceivableNetCurrent`	$524.07M	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	120.00M	shares	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	120.00M	shares	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	120.00M	shares	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	120.00M	shares	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	65.50M	shares	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	65.50M	shares	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	65.50M	shares	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	65.50M	shares	Point-in-time
Other	`OtherReceivables`	$46.89M	USD	Point-in-time
Other	`OtherReceivables`	$46.89M	USD	Point-in-time
Other	`OtherReceivables`	$95.89M	USD	Point-in-time
Other	`OtherReceivables`	$95.89M	USD	Point-in-time
Inventories - net	`InventoryNet`	$393.90M	USD	Point-in-time
Inventories - net	`InventoryNet`	$393.90M	USD	Point-in-time
Inventories - net	`InventoryNet`	$423.98M	USD	Point-in-time
Inventories - net	`InventoryNet`	$423.98M	USD	Point-in-time
Treasury stock, shares	`TreasuryStockCommonShares`	8.20M	shares	Point-in-time
Treasury stock, shares	`TreasuryStockCommonShares`	8.20M	shares	Point-in-time
Treasury stock, shares	`TreasuryStockCommonShares`	10.70M	shares	Point-in-time
Treasury stock, shares	`TreasuryStockCommonShares`	10.70M	shares	Point-in-time
Prepaid expenses and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$63.47M	USD	Point-in-time
Prepaid expenses and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$63.47M	USD	Point-in-time
Prepaid expenses and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$68.86M	USD	Point-in-time
Prepaid expenses and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$68.86M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.07B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.07B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.16B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.16B	USD	Point-in-time
Property and equipment	`PropertyPlantAndEquipmentGross`	$6.12B	USD	Point-in-time
Property and equipment	`PropertyPlantAndEquipmentGross`	$6.12B	USD	Point-in-time
Property and equipment	`PropertyPlantAndEquipmentGross`	$6.36B	USD	Point-in-time
Property and equipment	`PropertyPlantAndEquipmentGross`	$6.36B	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$2.10B	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$2.10B	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$2.24B	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$2.24B	USD	Point-in-time
Property and equipment - net	`PropertyPlantAndEquipmentNet`	$4.02B	USD	Point-in-time
Property and equipment - net	`PropertyPlantAndEquipmentNet`	$4.02B	USD	Point-in-time
Property and equipment - net	`PropertyPlantAndEquipmentNet`	$4.12B	USD	Point-in-time
Property and equipment - net	`PropertyPlantAndEquipmentNet`	$4.12B	USD	Point-in-time
Operating lease right-of-use assets	`OperatingLeaseRightOfUseAsset`	$158.99M	USD	Point-in-time
Operating lease right-of-use assets	`OperatingLeaseRightOfUseAsset`	$158.99M	USD	Point-in-time
Operating lease right-of-use assets	`OperatingLeaseRightOfUseAsset`	$181.41M	USD	Point-in-time
Operating lease right-of-use assets	`OperatingLeaseRightOfUseAsset`	$181.41M	USD	Point-in-time
Goodwill	`Goodwill`	$438.75M	USD	Point-in-time
Goodwill	`Goodwill`	$438.75M	USD	Point-in-time
Goodwill	`Goodwill`	$438.75M	USD	Point-in-time
Goodwill	`Goodwill`	$438.75M	USD	Point-in-time
Other intangibles, net	`FiniteLivedIntangibleAssetsNet`	$34.41M	USD	Point-in-time
Other intangibles, net	`FiniteLivedIntangibleAssetsNet`	$34.41M	USD	Point-in-time
Other intangibles, net	`FiniteLivedIntangibleAssetsNet`	$30.96M	USD	Point-in-time
Other intangibles, net	`FiniteLivedIntangibleAssetsNet`	$30.96M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$128.28M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$128.28M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$130.55M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$130.55M	USD	Point-in-time
Total assets	`Assets`	$5.85B	USD	Point-in-time
Total assets	`Assets`	$5.85B	USD	Point-in-time
Total assets	`Assets`	$6.06B	USD	Point-in-time
Total assets	`Assets`	$6.06B	USD	Point-in-time
Bank notes payable	`NotesPayableToBankCurrent`	$8.23M	USD	Point-in-time
Bank notes payable	`NotesPayableToBankCurrent`	$8.23M	USD	Point-in-time
Bank notes payable	`NotesPayableToBankCurrent`	$7.28M	USD	Point-in-time
Bank notes payable	`NotesPayableToBankCurrent`	$7.28M	USD	Point-in-time
Income taxes payable	`AccruedIncomeTaxesCurrent`	$25.42M	USD	Point-in-time
Income taxes payable	`AccruedIncomeTaxesCurrent`	$25.42M	USD	Point-in-time
Income taxes payable	`AccruedIncomeTaxesCurrent`	$587.00K	USD	Point-in-time
Income taxes payable	`AccruedIncomeTaxesCurrent`	$587.00K	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$251.35M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$251.35M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$222.69M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$222.69M	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$236.81M	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$236.81M	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$219.58M	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$219.58M	USD	Point-in-time
Current portion of operating lease liabilities	`OperatingLeaseLiabilityCurrent`	$35.73M	USD	Point-in-time
Current portion of operating lease liabilities	`OperatingLeaseLiabilityCurrent`	$35.73M	USD	Point-in-time
Current portion of operating lease liabilities	`OperatingLeaseLiabilityCurrent`	$44.32M	USD	Point-in-time
Current portion of operating lease liabilities	`OperatingLeaseLiabilityCurrent`	$44.32M	USD	Point-in-time
Deferred revenues	`ContractWithCustomerLiabilityCurrent`	$177.22M	USD	Point-in-time
Deferred revenues	`ContractWithCustomerLiabilityCurrent`	$177.22M	USD	Point-in-time
Deferred revenues	`ContractWithCustomerLiabilityCurrent`	$189.31M	USD	Point-in-time
Deferred revenues	`ContractWithCustomerLiabilityCurrent`	$189.31M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$734.75M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$734.75M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$683.77M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$683.77M	USD	Point-in-time
Long-term debt, net - less current portion	`LongTermDebtNoncurrent`	$866.72M	USD	Point-in-time
Long-term debt, net - less current portion	`LongTermDebtNoncurrent`	$866.72M	USD	Point-in-time
Long-term debt, net - less current portion	`LongTermDebtNoncurrent`	$1.04B	USD	Point-in-time
Long-term debt, net - less current portion	`LongTermDebtNoncurrent`	$1.04B	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$739.47M	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$739.47M	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$805.01M	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$805.01M	USD	Point-in-time
Operating lease liabilities - less current portion	`OperatingLeaseLiabilityNoncurrent`	$148.17M	USD	Point-in-time
Operating lease liabilities - less current portion	`OperatingLeaseLiabilityNoncurrent`	$148.17M	USD	Point-in-time
Operating lease liabilities - less current portion	`OperatingLeaseLiabilityNoncurrent`	$159.26M	USD	Point-in-time
Operating lease liabilities - less current portion	`OperatingLeaseLiabilityNoncurrent`	$159.26M	USD	Point-in-time
Other long-term liabilities	`OtherLiabilitiesNoncurrent`	$9.59M	USD	Point-in-time
Other long-term liabilities	`OtherLiabilitiesNoncurrent`	$9.59M	USD	Point-in-time
Other long-term liabilities	`OtherLiabilitiesNoncurrent`	$10.65M	USD	Point-in-time
Other long-term liabilities	`OtherLiabilitiesNoncurrent`	$10.65M	USD	Point-in-time
Total long-term liabilities	`LiabilitiesNoncurrent`	$1.76B	USD	Point-in-time
Total long-term liabilities	`LiabilitiesNoncurrent`	$1.76B	USD	Point-in-time
Total long-term liabilities	`LiabilitiesNoncurrent`	$2.02B	USD	Point-in-time
Total long-term liabilities	`LiabilitiesNoncurrent`	$2.02B	USD	Point-in-time
Contingencies and commitments	`CommitmentsAndContingencies`	-	USD	Point-in-time
Contingencies and commitments	`CommitmentsAndContingencies`	-	USD	Point-in-time
Contingencies and commitments	`CommitmentsAndContingencies`	-	USD	Point-in-time
Contingencies and commitments	`CommitmentsAndContingencies`	-	USD	Point-in-time
Common stock, $0.10 par value per share. Authorized 120 million shares, issued 65.5 million shares	`CommonStockValue`	$6.55M	USD	Point-in-time
Common stock, $0.10 par value per share. Authorized 120 million shares, issued 65.5 million shares	`CommonStockValue`	$6.55M	USD	Point-in-time
Common stock, $0.10 par value per share. Authorized 120 million shares, issued 65.5 million shares	`CommonStockValue`	$6.55M	USD	Point-in-time
Common stock, $0.10 par value per share. Authorized 120 million shares, issued 65.5 million shares	`CommonStockValue`	$6.55M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$868.76M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$868.76M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$870.52M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$870.52M	USD	Point-in-time
Accumulated other comprehensive income - net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$71.19M	USD	Point-in-time
Accumulated other comprehensive income - net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$71.19M	USD	Point-in-time
Accumulated other comprehensive income - net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$63.99M	USD	Point-in-time
Accumulated other comprehensive income - net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$63.99M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$2.98B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$2.98B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$3.24B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$3.24B	USD	Point-in-time
Treasury stock - at cost, 10.7 million shares at September 30, 2025 and 8.2 million at December 31, 2024	`TreasuryStockValue`	$573.06M	USD	Point-in-time
Treasury stock - at cost, 10.7 million shares at September 30, 2025 and 8.2 million at December 31, 2024	`TreasuryStockValue`	$573.06M	USD	Point-in-time
Treasury stock - at cost, 10.7 million shares at September 30, 2025 and 8.2 million at December 31, 2024	`TreasuryStockValue`	$821.01M	USD	Point-in-time
Treasury stock - at cost, 10.7 million shares at September 30, 2025 and 8.2 million at December 31, 2024	`TreasuryStockValue`	$821.01M	USD	Point-in-time
Total Kirby stockholders' equity	`StockholdersEquity`	$3.35B	USD	Point-in-time
Total Kirby stockholders' equity	`StockholdersEquity`	$3.35B	USD	Point-in-time
Total Kirby stockholders' equity	`StockholdersEquity`	$3.36B	USD	Point-in-time
Total Kirby stockholders' equity	`StockholdersEquity`	$3.36B	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$1.44M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$1.44M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$2.06M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$2.06M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.19B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.19B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.26B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.26B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.30B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.30B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.35B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.35B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.39B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.39B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.36B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.36B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$5.85B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$5.85B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$6.06B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$6.06B	USD	Point-in-time

Income Statement 136 line items

Line Item	Tag	Value	Unit	Period
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$831.15M	USD	1 Quarter
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$831.15M	USD	1 Quarter
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$2.46B	USD	3 Qtrs
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$2.46B	USD	3 Qtrs
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$871.16M	USD	1 Quarter
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$871.16M	USD	1 Quarter
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$2.51B	USD	3 Qtrs
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$2.51B	USD	3 Qtrs
Costs of sales and operating expenses	`CostsOfSalesAndOperatingExpenses`	$552.09M	USD	1 Quarter
Costs of sales and operating expenses	`CostsOfSalesAndOperatingExpenses`	$552.09M	USD	1 Quarter
Costs of sales and operating expenses	`CostsOfSalesAndOperatingExpenses`	$1.66B	USD	3 Qtrs
Costs of sales and operating expenses	`CostsOfSalesAndOperatingExpenses`	$1.66B	USD	3 Qtrs
Costs of sales and operating expenses	`CostsOfSalesAndOperatingExpenses`	$580.49M	USD	1 Quarter
Costs of sales and operating expenses	`CostsOfSalesAndOperatingExpenses`	$580.49M	USD	1 Quarter
Costs of sales and operating expenses	`CostsOfSalesAndOperatingExpenses`	$1.66B	USD	3 Qtrs
Costs of sales and operating expenses	`CostsOfSalesAndOperatingExpenses`	$1.66B	USD	3 Qtrs
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$84.12M	USD	1 Quarter
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$84.12M	USD	1 Quarter
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$254.71M	USD	3 Qtrs
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$254.71M	USD	3 Qtrs
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$87.81M	USD	1 Quarter
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$87.81M	USD	1 Quarter
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$268.94M	USD	3 Qtrs
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$268.94M	USD	3 Qtrs
Taxes, other than on income	`TaxesExcludingIncomeAndExciseTaxes`	$8.97M	USD	1 Quarter
Taxes, other than on income	`TaxesExcludingIncomeAndExciseTaxes`	$8.97M	USD	1 Quarter
Taxes, other than on income	`TaxesExcludingIncomeAndExciseTaxes`	$27.33M	USD	3 Qtrs
Taxes, other than on income	`TaxesExcludingIncomeAndExciseTaxes`	$27.33M	USD	3 Qtrs
Taxes, other than on income	`TaxesExcludingIncomeAndExciseTaxes`	$9.77M	USD	1 Quarter
Taxes, other than on income	`TaxesExcludingIncomeAndExciseTaxes`	$9.77M	USD	1 Quarter
Taxes, other than on income	`TaxesExcludingIncomeAndExciseTaxes`	$29.14M	USD	3 Qtrs
Taxes, other than on income	`TaxesExcludingIncomeAndExciseTaxes`	$29.14M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$60.65M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$60.65M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$177.78M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$177.78M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$66.87M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$66.87M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$196.27M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$196.27M	USD	3 Qtrs
Gain on disposition of assets	`GainLossOnDispositionOfAssets`	$1.62M	USD	1 Quarter
Gain on disposition of assets	`GainLossOnDispositionOfAssets`	$1.62M	USD	1 Quarter
Gain on disposition of assets	`GainLossOnDispositionOfAssets`	$2.21M	USD	3 Qtrs
Gain on disposition of assets	`GainLossOnDispositionOfAssets`	$2.21M	USD	3 Qtrs
Gain on disposition of assets	`GainLossOnDispositionOfAssets`	$3.00M	USD	1 Quarter
Gain on disposition of assets	`GainLossOnDispositionOfAssets`	$3.00M	USD	1 Quarter
Gain on disposition of assets	`GainLossOnDispositionOfAssets`	$4.76M	USD	3 Qtrs
Gain on disposition of assets	`GainLossOnDispositionOfAssets`	$4.76M	USD	3 Qtrs
Total costs and expenses	`CostsAndExpenses`	$704.22M	USD	1 Quarter
Total costs and expenses	`CostsAndExpenses`	$704.22M	USD	1 Quarter
Total costs and expenses	`CostsAndExpenses`	$2.11B	USD	3 Qtrs
Total costs and expenses	`CostsAndExpenses`	$2.11B	USD	3 Qtrs
Total costs and expenses	`CostsAndExpenses`	$741.94M	USD	1 Quarter
Total costs and expenses	`CostsAndExpenses`	$741.94M	USD	1 Quarter
Total costs and expenses	`CostsAndExpenses`	$2.15B	USD	3 Qtrs
Total costs and expenses	`CostsAndExpenses`	$2.15B	USD	3 Qtrs
Operating income	`OperatingIncomeLoss`	$126.93M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$126.93M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$348.95M	USD	3 Qtrs
Operating income	`OperatingIncomeLoss`	$348.95M	USD	3 Qtrs
Operating income	`OperatingIncomeLoss`	$129.22M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$129.22M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$366.61M	USD	3 Qtrs
Operating income	`OperatingIncomeLoss`	$366.61M	USD	3 Qtrs
Other income	`OtherNonoperatingIncome`	$2.95M	USD	1 Quarter
Other income	`OtherNonoperatingIncome`	$2.95M	USD	1 Quarter
Other income	`OtherNonoperatingIncome`	$9.31M	USD	3 Qtrs
Other income	`OtherNonoperatingIncome`	$9.31M	USD	3 Qtrs
Other income	`OtherNonoperatingIncome`	$5.56M	USD	1 Quarter
Other income	`OtherNonoperatingIncome`	$5.56M	USD	1 Quarter
Other income	`OtherNonoperatingIncome`	$15.70M	USD	3 Qtrs
Other income	`OtherNonoperatingIncome`	$15.70M	USD	3 Qtrs
Interest expense	`InterestExpense`	$12.50M	USD	1 Quarter
Interest expense	`InterestExpense`	$12.50M	USD	1 Quarter
Interest expense	`InterestExpense`	$38.47M	USD	3 Qtrs
Interest expense	`InterestExpense`	$38.47M	USD	3 Qtrs
Interest expense	`InterestExpense`	$11.84M	USD	1 Quarter
Interest expense	`InterestExpense`	$11.84M	USD	1 Quarter
Interest expense	`InterestExpense`	$35.10M	USD	3 Qtrs
Interest expense	`InterestExpense`	$35.10M	USD	3 Qtrs
Earnings before taxes on income	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$117.38M	USD	1 Quarter
Earnings before taxes on income	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$117.38M	USD	1 Quarter
Earnings before taxes on income	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$319.79M	USD	3 Qtrs
Earnings before taxes on income	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$319.79M	USD	3 Qtrs
Earnings before taxes on income	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$122.94M	USD	1 Quarter
Earnings before taxes on income	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$122.94M	USD	1 Quarter
Earnings before taxes on income	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$347.21M	USD	3 Qtrs
Earnings before taxes on income	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$347.21M	USD	3 Qtrs
Provision for taxes on income	`IncomeTaxExpenseBenefit`	$27.35M	USD	1 Quarter
Provision for taxes on income	`IncomeTaxExpenseBenefit`	$27.35M	USD	1 Quarter
Provision for taxes on income	`IncomeTaxExpenseBenefit`	$75.86M	USD	3 Qtrs
Provision for taxes on income	`IncomeTaxExpenseBenefit`	$75.86M	USD	3 Qtrs
Provision for taxes on income	`IncomeTaxExpenseBenefit`	$30.20M	USD	1 Quarter
Provision for taxes on income	`IncomeTaxExpenseBenefit`	$30.20M	USD	1 Quarter
Provision for taxes on income	`IncomeTaxExpenseBenefit`	$83.82M	USD	3 Qtrs
Provision for taxes on income	`IncomeTaxExpenseBenefit`	$83.82M	USD	3 Qtrs
Net earnings	`ProfitLoss`	$90.03M	USD	1 Quarter
Net earnings	`ProfitLoss`	$90.03M	USD	1 Quarter
Net earnings	`ProfitLoss`	$243.93M	USD	3 Qtrs
Net earnings	`ProfitLoss`	$243.93M	USD	3 Qtrs
Net earnings	`ProfitLoss`	$92.74M	USD	1 Quarter
Net earnings	`ProfitLoss`	$92.74M	USD	1 Quarter
Net earnings	`ProfitLoss`	$263.39M	USD	3 Qtrs
Net earnings	`ProfitLoss`	$263.39M	USD	3 Qtrs
Net earnings attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$63.00K	USD	1 Quarter
Net earnings attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$63.00K	USD	1 Quarter
Net earnings attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$38.00K	USD	3 Qtrs
Net earnings attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$38.00K	USD	3 Qtrs
Net earnings attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$242.00K	USD	1 Quarter
Net earnings attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$242.00K	USD	1 Quarter
Net earnings attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$627.00K	USD	3 Qtrs
Net earnings attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$627.00K	USD	3 Qtrs
Net earnings attributable to Kirby	`NetIncomeLoss`	$89.97M	USD	1 Quarter
Net earnings attributable to Kirby	`NetIncomeLoss`	$89.97M	USD	1 Quarter
Net earnings attributable to Kirby	`NetIncomeLoss`	$243.89M	USD	3 Qtrs
Net earnings attributable to Kirby	`NetIncomeLoss`	$243.89M	USD	3 Qtrs
Net earnings attributable to Kirby	`NetIncomeLoss`	$92.50M	USD	1 Quarter
Net earnings attributable to Kirby	`NetIncomeLoss`	$92.50M	USD	1 Quarter
Net earnings attributable to Kirby	`NetIncomeLoss`	$262.76M	USD	3 Qtrs
Net earnings attributable to Kirby	`NetIncomeLoss`	$262.76M	USD	3 Qtrs
Basic	`EarningsPerShareBasic`	$1.56	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$1.56	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$4.20	USD	3 Qtrs
Basic	`EarningsPerShareBasic`	$4.20	USD	3 Qtrs
Basic	`EarningsPerShareBasic`	$1.66	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$1.66	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$4.67	USD	3 Qtrs
Basic	`EarningsPerShareBasic`	$4.67	USD	3 Qtrs
Diluted	`EarningsPerShareDiluted`	$1.55	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$1.55	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$4.17	USD	3 Qtrs
Diluted	`EarningsPerShareDiluted`	$4.17	USD	3 Qtrs
Diluted	`EarningsPerShareDiluted`	$1.65	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$1.65	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$4.64	USD	3 Qtrs
Diluted	`EarningsPerShareDiluted`	$4.64	USD	3 Qtrs

Cash Flow Statement 128 line items

Line Item	Tag	Value	Unit	Period
Net earnings	`ProfitLoss`	$90.03M	USD	1 Quarter
Net earnings	`ProfitLoss`	$90.03M	USD	1 Quarter
Net earnings	`ProfitLoss`	$243.93M	USD	3 Qtrs
Net earnings	`ProfitLoss`	$243.93M	USD	3 Qtrs
Net earnings	`ProfitLoss`	$92.74M	USD	1 Quarter
Net earnings	`ProfitLoss`	$92.74M	USD	1 Quarter
Net earnings	`ProfitLoss`	$263.39M	USD	3 Qtrs
Net earnings	`ProfitLoss`	$263.39M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$60.65M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$60.65M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$177.78M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$177.78M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$66.87M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$66.87M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$196.27M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$196.27M	USD	3 Qtrs
Provision for deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$38.70M	USD	3 Qtrs
Provision for deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$38.70M	USD	3 Qtrs
Provision for deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$68.14M	USD	3 Qtrs
Provision for deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$68.14M	USD	3 Qtrs
Amortization of share-based compensation	`ShareBasedCompensation`	$12.84M	USD	3 Qtrs
Amortization of share-based compensation	`ShareBasedCompensation`	$12.84M	USD	3 Qtrs
Amortization of share-based compensation	`ShareBasedCompensation`	$14.57M	USD	3 Qtrs
Amortization of share-based compensation	`ShareBasedCompensation`	$14.57M	USD	3 Qtrs
Amortization of major maintenance costs	`AmortizationOfMajorMaintenanceCosts`	$24.96M	USD	3 Qtrs
Amortization of major maintenance costs	`AmortizationOfMajorMaintenanceCosts`	$24.96M	USD	3 Qtrs
Amortization of major maintenance costs	`AmortizationOfMajorMaintenanceCosts`	$22.35M	USD	3 Qtrs
Amortization of major maintenance costs	`AmortizationOfMajorMaintenanceCosts`	$22.35M	USD	3 Qtrs
Other	`OtherNoncashIncomeExpense`	$126.00K	USD	3 Qtrs
Other	`OtherNoncashIncomeExpense`	$126.00K	USD	3 Qtrs
Other	`OtherNoncashIncomeExpense`	$3.45M	USD	3 Qtrs
Other	`OtherNoncashIncomeExpense`	$3.45M	USD	3 Qtrs
Increase (decrease) in cash flows resulting from changes in operating assets and liabilities, net	`IncreaseDecreaseInOperatingCapital`	$-11.03M	USD	3 Qtrs
Increase (decrease) in cash flows resulting from changes in operating assets and liabilities, net	`IncreaseDecreaseInOperatingCapital`	$-11.03M	USD	3 Qtrs
Increase (decrease) in cash flows resulting from changes in operating assets and liabilities, net	`IncreaseDecreaseInOperatingCapital`	$203.27M	USD	3 Qtrs
Increase (decrease) in cash flows resulting from changes in operating assets and liabilities, net	`IncreaseDecreaseInOperatingCapital`	$203.27M	USD	3 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$509.11M	USD	3 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$509.11M	USD	3 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$357.99M	USD	3 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$357.99M	USD	3 Qtrs
Capital expenditures	`PaymentsToAcquireProductiveAssets`	$245.99M	USD	3 Qtrs
Capital expenditures	`PaymentsToAcquireProductiveAssets`	$245.99M	USD	3 Qtrs
Capital expenditures	`PaymentsToAcquireProductiveAssets`	$217.44M	USD	3 Qtrs
Capital expenditures	`PaymentsToAcquireProductiveAssets`	$217.44M	USD	3 Qtrs
Acquisitions of businesses and marine equipment	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$65.23M	USD	3 Qtrs
Acquisitions of businesses and marine equipment	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$65.23M	USD	3 Qtrs
Acquisitions of businesses and marine equipment	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$106.45M	USD	3 Qtrs
Acquisitions of businesses and marine equipment	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$106.45M	USD	3 Qtrs
Proceeds from disposition of assets	`ProceedsFromSaleOfProductiveAssets`	$13.83M	USD	3 Qtrs
Proceeds from disposition of assets	`ProceedsFromSaleOfProductiveAssets`	$13.83M	USD	3 Qtrs
Proceeds from disposition of assets	`ProceedsFromSaleOfProductiveAssets`	$28.33M	USD	3 Qtrs
Proceeds from disposition of assets	`ProceedsFromSaleOfProductiveAssets`	$28.33M	USD	3 Qtrs
Other	`PaymentsForProceedsFromOtherInvestingActivities`	-	USD	3 Qtrs
Other	`PaymentsForProceedsFromOtherInvestingActivities`	-	USD	3 Qtrs
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$3.00M	USD	3 Qtrs
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$3.00M	USD	3 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-297.39M	USD	3 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-297.39M	USD	3 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-298.56M	USD	3 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-298.56M	USD	3 Qtrs
Borrowings (payments) on bank credit facilities, net	`ProceedsFromRepaymentsOfLinesOfCredit`	$-38.89M	USD	3 Qtrs
Borrowings (payments) on bank credit facilities, net	`ProceedsFromRepaymentsOfLinesOfCredit`	$-38.89M	USD	3 Qtrs
Borrowings (payments) on bank credit facilities, net	`ProceedsFromRepaymentsOfLinesOfCredit`	$174.06M	USD	3 Qtrs
Borrowings (payments) on bank credit facilities, net	`ProceedsFromRepaymentsOfLinesOfCredit`	$174.06M	USD	3 Qtrs
Payment of debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$3.00K	USD	3 Qtrs
Payment of debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$3.00K	USD	3 Qtrs
Payment of debt issuance costs	`PaymentsOfDebtIssuanceCosts`	-	USD	3 Qtrs
Payment of debt issuance costs	`PaymentsOfDebtIssuanceCosts`	-	USD	3 Qtrs
Proceeds from exercise of stock options	`ProceedsFromStockOptionsExercised`	$8.38M	USD	3 Qtrs
Proceeds from exercise of stock options	`ProceedsFromStockOptionsExercised`	$8.38M	USD	3 Qtrs
Proceeds from exercise of stock options	`ProceedsFromStockOptionsExercised`	$262.00K	USD	3 Qtrs
Proceeds from exercise of stock options	`ProceedsFromStockOptionsExercised`	$262.00K	USD	3 Qtrs
Payments related to tax withholding for share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$5.36M	USD	3 Qtrs
Payments related to tax withholding for share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$5.36M	USD	3 Qtrs
Payments related to tax withholding for share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$5.98M	USD	3 Qtrs
Payments related to tax withholding for share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$5.98M	USD	3 Qtrs
Treasury stock purchases	`PaymentsForRepurchaseOfCommonStock`	$141.27M	USD	3 Qtrs
Treasury stock purchases	`PaymentsForRepurchaseOfCommonStock`	$141.27M	USD	3 Qtrs
Treasury stock purchases	`PaymentsForRepurchaseOfCommonStock`	$252.64M	USD	3 Qtrs
Treasury stock purchases	`PaymentsForRepurchaseOfCommonStock`	$252.64M	USD	3 Qtrs
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-75.00K	USD	3 Qtrs
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-75.00K	USD	3 Qtrs
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-2.56M	USD	3 Qtrs
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-2.56M	USD	3 Qtrs
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-177.22M	USD	3 Qtrs
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-177.22M	USD	3 Qtrs
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-86.86M	USD	3 Qtrs
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-86.86M	USD	3 Qtrs
Increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$34.50M	USD	3 Qtrs
Increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$34.50M	USD	3 Qtrs
Increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-27.42M	USD	3 Qtrs
Increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-27.42M	USD	3 Qtrs
Cash and cash equivalents, beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$32.58M	USD	Point-in-time
Cash and cash equivalents, beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$32.58M	USD	Point-in-time
Cash and cash equivalents, beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$67.07M	USD	Point-in-time
Cash and cash equivalents, beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$67.07M	USD	Point-in-time
Cash and cash equivalents, beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$74.44M	USD	Point-in-time
Cash and cash equivalents, beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$74.44M	USD	Point-in-time
Cash and cash equivalents, beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$47.02M	USD	Point-in-time
Cash and cash equivalents, beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$47.02M	USD	Point-in-time
Cash and cash equivalents, end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$32.58M	USD	Point-in-time
Cash and cash equivalents, end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$32.58M	USD	Point-in-time
Cash and cash equivalents, end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$67.07M	USD	Point-in-time
Cash and cash equivalents, end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$67.07M	USD	Point-in-time
Cash and cash equivalents, end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$74.44M	USD	Point-in-time
Cash and cash equivalents, end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$74.44M	USD	Point-in-time
Cash and cash equivalents, end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$47.02M	USD	Point-in-time
Cash and cash equivalents, end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$47.02M	USD	Point-in-time
Interest paid	`InterestPaidNet`	$46.60M	USD	3 Qtrs
Interest paid	`InterestPaidNet`	$46.60M	USD	3 Qtrs
Interest paid	`InterestPaidNet`	$42.79M	USD	3 Qtrs
Interest paid	`InterestPaidNet`	$42.79M	USD	3 Qtrs
Income taxes paid, net	`IncomeTaxesPaidNet`	$15.48M	USD	3 Qtrs
Income taxes paid, net	`IncomeTaxesPaidNet`	$15.48M	USD	3 Qtrs
Income taxes paid, net	`IncomeTaxesPaidNet`	$80.97M	USD	3 Qtrs
Income taxes paid, net	`IncomeTaxesPaidNet`	$80.97M	USD	3 Qtrs
Operating cash outflow from operating leases	`OperatingLeasePayments`	$34.90M	USD	3 Qtrs
Operating cash outflow from operating leases	`OperatingLeasePayments`	$34.90M	USD	3 Qtrs
Operating cash outflow from operating leases	`OperatingLeasePayments`	$38.17M	USD	3 Qtrs
Operating cash outflow from operating leases	`OperatingLeasePayments`	$38.17M	USD	3 Qtrs
Capital expenditures included in accounts payable	`CapitalExpendituresIncurredPaidAndNotYetPaid`	$1.73M	USD	3 Qtrs
Capital expenditures included in accounts payable	`CapitalExpendituresIncurredPaidAndNotYetPaid`	$1.73M	USD	3 Qtrs
Capital expenditures included in accounts payable	`CapitalExpendituresIncurredPaidAndNotYetPaid`	$10.56M	USD	3 Qtrs
Capital expenditures included in accounts payable	`CapitalExpendituresIncurredPaidAndNotYetPaid`	$10.56M	USD	3 Qtrs
Right-of-use assets obtained in exchange for lease obligations	`RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability`	$38.73M	USD	3 Qtrs
Right-of-use assets obtained in exchange for lease obligations	`RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability`	$38.73M	USD	3 Qtrs
Right-of-use assets obtained in exchange for lease obligations	`RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability`	$50.81M	USD	3 Qtrs
Right-of-use assets obtained in exchange for lease obligations	`RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability`	$50.81M	USD	3 Qtrs

Stockholders Equity 78 line items

Line Item	Tag	Value	Unit	Period
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.19B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.19B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.26B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.26B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.30B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.30B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.35B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.35B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.39B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.39B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.36B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.36B	USD	Point-in-time
Beginning balance (in shares)	`TreasuryStockCommonShares`	8.20M	shares	Point-in-time
Beginning balance (in shares)	`TreasuryStockCommonShares`	8.20M	shares	Point-in-time
Beginning balance (in shares)	`TreasuryStockCommonShares`	10.70M	shares	Point-in-time
Beginning balance (in shares)	`TreasuryStockCommonShares`	10.70M	shares	Point-in-time
Stock option exercises	`StockIssuedDuringPeriodValueStockOptionsExercised`	$4.28M	USD	1 Quarter
Stock option exercises	`StockIssuedDuringPeriodValueStockOptionsExercised`	$4.28M	USD	1 Quarter
Stock option exercises	`StockIssuedDuringPeriodValueStockOptionsExercised`	$8.38M	USD	3 Qtrs
Stock option exercises	`StockIssuedDuringPeriodValueStockOptionsExercised`	$8.38M	USD	3 Qtrs
Stock option exercises	`StockIssuedDuringPeriodValueStockOptionsExercised`	$262.00K	USD	3 Qtrs
Stock option exercises	`StockIssuedDuringPeriodValueStockOptionsExercised`	$262.00K	USD	3 Qtrs
Tax withholdings on equity award vesting	`AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation`	$17.00K	USD	1 Quarter
Tax withholdings on equity award vesting	`AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation`	$17.00K	USD	1 Quarter
Tax withholdings on equity award vesting	`AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation`	$5.36M	USD	3 Qtrs
Tax withholdings on equity award vesting	`AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation`	$5.36M	USD	3 Qtrs
Tax withholdings on equity award vesting	`AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation`	$20.00K	USD	1 Quarter
Tax withholdings on equity award vesting	`AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation`	$20.00K	USD	1 Quarter
Tax withholdings on equity award vesting	`AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation`	$5.98M	USD	3 Qtrs
Tax withholdings on equity award vesting	`AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation`	$5.98M	USD	3 Qtrs
Amortization of share-based compensation	`EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount`	$-3.44M	USD	1 Quarter
Amortization of share-based compensation	`EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount`	$-3.44M	USD	1 Quarter
Amortization of share-based compensation	`EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount`	$-12.84M	USD	3 Qtrs
Amortization of share-based compensation	`EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount`	$-12.84M	USD	3 Qtrs
Amortization of share-based compensation	`EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount`	$-3.42M	USD	1 Quarter
Amortization of share-based compensation	`EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount`	$-3.42M	USD	1 Quarter
Amortization of share-based compensation	`EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount`	$-14.57M	USD	3 Qtrs
Amortization of share-based compensation	`EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount`	$-14.57M	USD	3 Qtrs
Treasury stock purchases	`TreasuryStockValueAcquiredCostMethod`	$55.81M	USD	1 Quarter
Treasury stock purchases	`TreasuryStockValueAcquiredCostMethod`	$55.81M	USD	1 Quarter
Treasury stock purchases	`TreasuryStockValueAcquiredCostMethod`	$141.27M	USD	3 Qtrs
Treasury stock purchases	`TreasuryStockValueAcquiredCostMethod`	$141.27M	USD	3 Qtrs
Treasury stock purchases	`TreasuryStockValueAcquiredCostMethod`	$119.97M	USD	1 Quarter
Treasury stock purchases	`TreasuryStockValueAcquiredCostMethod`	$119.97M	USD	1 Quarter
Treasury stock purchases	`TreasuryStockValueAcquiredCostMethod`	$252.64M	USD	3 Qtrs
Treasury stock purchases	`TreasuryStockValueAcquiredCostMethod`	$252.64M	USD	3 Qtrs
Excise taxes on treasury stock purchases	`ExciseTaxesOnTreasuryStockPurchases`	$488.00K	USD	1 Quarter
Excise taxes on treasury stock purchases	`ExciseTaxesOnTreasuryStockPurchases`	$488.00K	USD	1 Quarter
Excise taxes on treasury stock purchases	`ExciseTaxesOnTreasuryStockPurchases`	$1.19M	USD	3 Qtrs
Excise taxes on treasury stock purchases	`ExciseTaxesOnTreasuryStockPurchases`	$1.19M	USD	3 Qtrs
Excise taxes on treasury stock purchases	`ExciseTaxesOnTreasuryStockPurchases`	$1.20M	USD	1 Quarter
Excise taxes on treasury stock purchases	`ExciseTaxesOnTreasuryStockPurchases`	$1.20M	USD	1 Quarter
Excise taxes on treasury stock purchases	`ExciseTaxesOnTreasuryStockPurchases`	$2.40M	USD	3 Qtrs
Excise taxes on treasury stock purchases	`ExciseTaxesOnTreasuryStockPurchases`	$2.40M	USD	3 Qtrs
Total comprehensive income, net of taxes	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$89.53M	USD	1 Quarter
Total comprehensive income, net of taxes	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$89.53M	USD	1 Quarter
Total comprehensive income, net of taxes	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$243.54M	USD	3 Qtrs
Total comprehensive income, net of taxes	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$243.54M	USD	3 Qtrs
Total comprehensive income, net of taxes	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$91.11M	USD	1 Quarter
Total comprehensive income, net of taxes	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$91.11M	USD	1 Quarter
Total comprehensive income, net of taxes	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$256.18M	USD	3 Qtrs
Total comprehensive income, net of taxes	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$256.18M	USD	3 Qtrs
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.19B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.19B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.26B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.26B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.30B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.30B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.35B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.35B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.39B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.39B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.36B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.36B	USD	Point-in-time
Ending balance (in shares)	`TreasuryStockCommonShares`	8.20M	shares	Point-in-time
Ending balance (in shares)	`TreasuryStockCommonShares`	8.20M	shares	Point-in-time
Ending balance (in shares)	`TreasuryStockCommonShares`	10.70M	shares	Point-in-time
Ending balance (in shares)	`TreasuryStockCommonShares`	10.70M	shares	Point-in-time

Comprehensive Income 56 line items

Line Item	Tag	Value	Unit	Period
Net earnings	`ProfitLoss`	$90.03M	USD	1 Quarter
Net earnings	`ProfitLoss`	$90.03M	USD	1 Quarter
Net earnings	`ProfitLoss`	$243.93M	USD	3 Qtrs
Net earnings	`ProfitLoss`	$243.93M	USD	3 Qtrs
Net earnings	`ProfitLoss`	$92.74M	USD	1 Quarter
Net earnings	`ProfitLoss`	$92.74M	USD	1 Quarter
Net earnings	`ProfitLoss`	$263.39M	USD	3 Qtrs
Net earnings	`ProfitLoss`	$263.39M	USD	3 Qtrs
Pension and postretirement benefits	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$484.00K	USD	1 Quarter
Pension and postretirement benefits	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$484.00K	USD	1 Quarter
Pension and postretirement benefits	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-107.00K	USD	3 Qtrs
Pension and postretirement benefits	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-107.00K	USD	3 Qtrs
Pension and postretirement benefits	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$1.73M	USD	1 Quarter
Pension and postretirement benefits	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$1.73M	USD	1 Quarter
Pension and postretirement benefits	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$7.80M	USD	3 Qtrs
Pension and postretirement benefits	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$7.80M	USD	3 Qtrs
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-22.00K	USD	1 Quarter
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-22.00K	USD	1 Quarter
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-495.00K	USD	3 Qtrs
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-495.00K	USD	3 Qtrs
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$108.00K	USD	1 Quarter
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$108.00K	USD	1 Quarter
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$594.00K	USD	3 Qtrs
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$594.00K	USD	3 Qtrs
Total other comprehensive loss, net of taxes	`OtherComprehensiveIncomeLossNetOfTax`	$-506.00K	USD	1 Quarter
Total other comprehensive loss, net of taxes	`OtherComprehensiveIncomeLossNetOfTax`	$-506.00K	USD	1 Quarter
Total other comprehensive loss, net of taxes	`OtherComprehensiveIncomeLossNetOfTax`	$-388.00K	USD	3 Qtrs
Total other comprehensive loss, net of taxes	`OtherComprehensiveIncomeLossNetOfTax`	$-388.00K	USD	3 Qtrs
Total other comprehensive loss, net of taxes	`OtherComprehensiveIncomeLossNetOfTax`	$-1.62M	USD	1 Quarter
Total other comprehensive loss, net of taxes	`OtherComprehensiveIncomeLossNetOfTax`	$-1.62M	USD	1 Quarter
Total other comprehensive loss, net of taxes	`OtherComprehensiveIncomeLossNetOfTax`	$-7.20M	USD	3 Qtrs
Total other comprehensive loss, net of taxes	`OtherComprehensiveIncomeLossNetOfTax`	$-7.20M	USD	3 Qtrs
Total comprehensive income, net of taxes	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$89.53M	USD	1 Quarter
Total comprehensive income, net of taxes	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$89.53M	USD	1 Quarter
Total comprehensive income, net of taxes	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$243.54M	USD	3 Qtrs
Total comprehensive income, net of taxes	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$243.54M	USD	3 Qtrs
Total comprehensive income, net of taxes	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$91.11M	USD	1 Quarter
Total comprehensive income, net of taxes	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$91.11M	USD	1 Quarter
Total comprehensive income, net of taxes	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$256.18M	USD	3 Qtrs
Total comprehensive income, net of taxes	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$256.18M	USD	3 Qtrs
Net earnings attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$63.00K	USD	1 Quarter
Net earnings attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$63.00K	USD	1 Quarter
Net earnings attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$38.00K	USD	3 Qtrs
Net earnings attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$38.00K	USD	3 Qtrs
Net earnings attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$242.00K	USD	1 Quarter
Net earnings attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$242.00K	USD	1 Quarter
Net earnings attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$627.00K	USD	3 Qtrs
Net earnings attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$627.00K	USD	3 Qtrs
Comprehensive income attributable to Kirby	`ComprehensiveIncomeNetOfTax`	$89.46M	USD	1 Quarter
Comprehensive income attributable to Kirby	`ComprehensiveIncomeNetOfTax`	$89.46M	USD	1 Quarter
Comprehensive income attributable to Kirby	`ComprehensiveIncomeNetOfTax`	$243.50M	USD	3 Qtrs
Comprehensive income attributable to Kirby	`ComprehensiveIncomeNetOfTax`	$243.50M	USD	3 Qtrs
Comprehensive income attributable to Kirby	`ComprehensiveIncomeNetOfTax`	$90.87M	USD	1 Quarter
Comprehensive income attributable to Kirby	`ComprehensiveIncomeNetOfTax`	$90.87M	USD	1 Quarter
Comprehensive income attributable to Kirby	`ComprehensiveIncomeNetOfTax`	$255.56M	USD	3 Qtrs
Comprehensive income attributable to Kirby	`ComprehensiveIncomeNetOfTax`	$255.56M	USD	3 Qtrs

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.