10-Q Filing

KIRBY CORP CIK: 56047 Q1 2024

Filing Information

Form Type	10-Q
Accession Number	`0000950170-24-053690`
Period End Date	20240331
Filing Date	20240506
Fiscal Year	2024
Fiscal Period	Q1
XBRL Instance	kex-20240331_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 164 Income Statement 68 Cash Flow Statement 120 Stockholders Equity 38 Comprehensive Income 28

Balance Sheet 164 line items

Line Item	Tag	Value	Unit	Period
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$75.22M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$75.22M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$32.58M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$32.58M	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
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
Trade - less allowance for doubtful accounts	`AccountsReceivableNetCurrent`	$526.69M	USD	Point-in-time
Trade - less allowance for doubtful accounts	`AccountsReceivableNetCurrent`	$526.69M	USD	Point-in-time
Trade - less allowance for doubtful accounts	`AccountsReceivableNetCurrent`	$529.14M	USD	Point-in-time
Trade - less allowance for doubtful accounts	`AccountsReceivableNetCurrent`	$529.14M	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
Other	`OtherReceivables`	$52.02M	USD	Point-in-time
Other	`OtherReceivables`	$52.02M	USD	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`	$55.95M	USD	Point-in-time
Other	`OtherReceivables`	$55.95M	USD	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
Treasury stock, shares	`TreasuryStockCommonShares`	7.20M	shares	Point-in-time
Treasury stock, shares	`TreasuryStockCommonShares`	7.20M	shares	Point-in-time
Treasury stock, shares	`TreasuryStockCommonShares`	6.80M	shares	Point-in-time
Treasury stock, shares	`TreasuryStockCommonShares`	6.80M	shares	Point-in-time
Inventories - net	`InventoryNet`	$454.39M	USD	Point-in-time
Inventories - net	`InventoryNet`	$454.39M	USD	Point-in-time
Inventories - net	`InventoryNet`	$446.80M	USD	Point-in-time
Inventories - net	`InventoryNet`	$446.80M	USD	Point-in-time
Prepaid expense and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$69.48M	USD	Point-in-time
Prepaid expense and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$69.48M	USD	Point-in-time
Prepaid expense and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$68.37M	USD	Point-in-time
Prepaid expense and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$68.37M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.18B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.18B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.14B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.14B	USD	Point-in-time
Property and equipment	`PropertyPlantAndEquipmentGross`	$5.88B	USD	Point-in-time
Property and equipment	`PropertyPlantAndEquipmentGross`	$5.88B	USD	Point-in-time
Property and equipment	`PropertyPlantAndEquipmentGross`	$5.82B	USD	Point-in-time
Property and equipment	`PropertyPlantAndEquipmentGross`	$5.82B	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$2.00B	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$2.00B	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$1.96B	USD	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$1.96B	USD	Point-in-time
Property and equipment - net	`PropertyPlantAndEquipmentNet`	$3.88B	USD	Point-in-time
Property and equipment - net	`PropertyPlantAndEquipmentNet`	$3.88B	USD	Point-in-time
Property and equipment - net	`PropertyPlantAndEquipmentNet`	$3.86B	USD	Point-in-time
Property and equipment - net	`PropertyPlantAndEquipmentNet`	$3.86B	USD	Point-in-time
Operating lease right-of-use assets	`OperatingLeaseRightOfUseAsset`	$152.22M	USD	Point-in-time
Operating lease right-of-use assets	`OperatingLeaseRightOfUseAsset`	$152.22M	USD	Point-in-time
Operating lease right-of-use assets	`OperatingLeaseRightOfUseAsset`	$149.41M	USD	Point-in-time
Operating lease right-of-use assets	`OperatingLeaseRightOfUseAsset`	$149.41M	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`	$40.80M	USD	Point-in-time
Other intangibles, net	`FiniteLivedIntangibleAssetsNet`	$40.80M	USD	Point-in-time
Other intangibles, net	`FiniteLivedIntangibleAssetsNet`	$42.93M	USD	Point-in-time
Other intangibles, net	`FiniteLivedIntangibleAssetsNet`	$42.93M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$88.08M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$88.08M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$92.04M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$92.04M	USD	Point-in-time
Total assets	`Assets`	$5.72B	USD	Point-in-time
Total assets	`Assets`	$5.72B	USD	Point-in-time
Total assets	`Assets`	$5.78B	USD	Point-in-time
Total assets	`Assets`	$5.78B	USD	Point-in-time
Bank notes payable	`NotesPayableToBankCurrent`	$8.64M	USD	Point-in-time
Bank notes payable	`NotesPayableToBankCurrent`	$8.64M	USD	Point-in-time
Bank notes payable	`NotesPayableToBankCurrent`	$8.07M	USD	Point-in-time
Bank notes payable	`NotesPayableToBankCurrent`	$8.07M	USD	Point-in-time
Income taxes payable	`AccruedIncomeTaxesCurrent`	$11.25M	USD	Point-in-time
Income taxes payable	`AccruedIncomeTaxesCurrent`	$11.25M	USD	Point-in-time
Income taxes payable	`AccruedIncomeTaxesCurrent`	$1.49M	USD	Point-in-time
Income taxes payable	`AccruedIncomeTaxesCurrent`	$1.49M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$249.64M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$249.64M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$269.38M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$269.38M	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$228.95M	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$228.95M	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$194.82M	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$194.82M	USD	Point-in-time
Current portion of operating lease liabilities	`OperatingLeaseLiabilityCurrent`	$32.60M	USD	Point-in-time
Current portion of operating lease liabilities	`OperatingLeaseLiabilityCurrent`	$32.60M	USD	Point-in-time
Current portion of operating lease liabilities	`OperatingLeaseLiabilityCurrent`	$33.34M	USD	Point-in-time
Current portion of operating lease liabilities	`OperatingLeaseLiabilityCurrent`	$33.34M	USD	Point-in-time
Deferred revenues	`ContractWithCustomerLiabilityCurrent`	$134.58M	USD	Point-in-time
Deferred revenues	`ContractWithCustomerLiabilityCurrent`	$134.58M	USD	Point-in-time
Deferred revenues	`ContractWithCustomerLiabilityCurrent`	$153.44M	USD	Point-in-time
Deferred revenues	`ContractWithCustomerLiabilityCurrent`	$153.44M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$675.79M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$675.79M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$650.39M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$650.39M	USD	Point-in-time
Long-term debt, net - less current portion	`LongTermDebtNoncurrent`	$1.01B	USD	Point-in-time
Long-term debt, net - less current portion	`LongTermDebtNoncurrent`	$1.01B	USD	Point-in-time
Long-term debt, net - less current portion	`LongTermDebtNoncurrent`	$1.05B	USD	Point-in-time
Long-term debt, net - less current portion	`LongTermDebtNoncurrent`	$1.05B	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$696.56M	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$696.56M	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$705.83M	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$705.83M	USD	Point-in-time
Operating lease liabilities - less current portion	`OperatingLeaseLiabilityNoncurrent`	$136.98M	USD	Point-in-time
Operating lease liabilities - less current portion	`OperatingLeaseLiabilityNoncurrent`	$136.98M	USD	Point-in-time
Operating lease liabilities - less current portion	`OperatingLeaseLiabilityNoncurrent`	$138.81M	USD	Point-in-time
Operating lease liabilities - less current portion	`OperatingLeaseLiabilityNoncurrent`	$138.81M	USD	Point-in-time
Other long-term liabilities	`OtherLiabilitiesNoncurrent`	$14.07M	USD	Point-in-time
Other long-term liabilities	`OtherLiabilitiesNoncurrent`	$14.07M	USD	Point-in-time
Other long-term liabilities	`OtherLiabilitiesNoncurrent`	$15.83M	USD	Point-in-time
Other long-term liabilities	`OtherLiabilitiesNoncurrent`	$15.83M	USD	Point-in-time
Total long-term liabilities	`LiabilitiesNoncurrent`	$1.91B	USD	Point-in-time
Total long-term liabilities	`LiabilitiesNoncurrent`	$1.91B	USD	Point-in-time
Total long-term liabilities	`LiabilitiesNoncurrent`	$1.86B	USD	Point-in-time
Total long-term liabilities	`LiabilitiesNoncurrent`	$1.86B	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`	$863.96M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$863.96M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$859.15M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$859.15M	USD	Point-in-time
Accumulated other comprehensive income - net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$34.61M	USD	Point-in-time
Accumulated other comprehensive income - net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$34.61M	USD	Point-in-time
Accumulated other comprehensive income - net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$35.01M	USD	Point-in-time
Accumulated other comprehensive income - net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$35.01M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$2.76B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$2.76B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$2.69B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$2.69B	USD	Point-in-time
Treasury stock - at cost, 7.2 million shares at March 31, 2024 and 6.8 million at December 31, 2023	`TreasuryStockValue`	$411.75M	USD	Point-in-time
Treasury stock - at cost, 7.2 million shares at March 31, 2024 and 6.8 million at December 31, 2023	`TreasuryStockValue`	$411.75M	USD	Point-in-time
Treasury stock - at cost, 7.2 million shares at March 31, 2024 and 6.8 million at December 31, 2023	`TreasuryStockValue`	$446.39M	USD	Point-in-time
Treasury stock - at cost, 7.2 million shares at March 31, 2024 and 6.8 million at December 31, 2023	`TreasuryStockValue`	$446.39M	USD	Point-in-time
Total Kirby stockholders' equity	`StockholdersEquity`	$3.22B	USD	Point-in-time
Total Kirby stockholders' equity	`StockholdersEquity`	$3.22B	USD	Point-in-time
Total Kirby stockholders' equity	`StockholdersEquity`	$3.19B	USD	Point-in-time
Total Kirby stockholders' equity	`StockholdersEquity`	$3.19B	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$1.25M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$1.25M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$1.09M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$1.09M	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`	$3.09B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.09B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.22B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.22B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.05B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.05B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$5.78B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$5.78B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$5.72B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$5.72B	USD	Point-in-time

Income Statement 68 line items

Line Item	Tag	Value	Unit	Period
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$750.44M	USD	1 Quarter
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$750.44M	USD	1 Quarter
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$808.02M	USD	1 Quarter
Revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$808.02M	USD	1 Quarter
Costs of sales and operating expenses	`CostsOfSalesAndOperatingExpenses`	$550.68M	USD	1 Quarter
Costs of sales and operating expenses	`CostsOfSalesAndOperatingExpenses`	$550.68M	USD	1 Quarter
Costs of sales and operating expenses	`CostsOfSalesAndOperatingExpenses`	$542.08M	USD	1 Quarter
Costs of sales and operating expenses	`CostsOfSalesAndOperatingExpenses`	$542.08M	USD	1 Quarter
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$90.21M	USD	1 Quarter
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$90.21M	USD	1 Quarter
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$88.85M	USD	1 Quarter
Selling, general and administrative	`SellingGeneralAndAdministrativeExpense`	$88.85M	USD	1 Quarter
Taxes, other than on income	`TaxesExcludingIncomeAndExciseTaxes`	$8.04M	USD	1 Quarter
Taxes, other than on income	`TaxesExcludingIncomeAndExciseTaxes`	$8.04M	USD	1 Quarter
Taxes, other than on income	`TaxesExcludingIncomeAndExciseTaxes`	$9.19M	USD	1 Quarter
Taxes, other than on income	`TaxesExcludingIncomeAndExciseTaxes`	$9.19M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$51.11M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$51.11M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$57.64M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$57.64M	USD	1 Quarter
Gain on disposition of assets	`GainLossOnDispositionOfAssets`	$74.00K	USD	1 Quarter
Gain on disposition of assets	`GainLossOnDispositionOfAssets`	$74.00K	USD	1 Quarter
Gain on disposition of assets	`GainLossOnDispositionOfAssets`	$2.23M	USD	1 Quarter
Gain on disposition of assets	`GainLossOnDispositionOfAssets`	$2.23M	USD	1 Quarter
Total costs and expenses	`CostsAndExpenses`	$688.99M	USD	1 Quarter
Total costs and expenses	`CostsAndExpenses`	$688.99M	USD	1 Quarter
Total costs and expenses	`CostsAndExpenses`	$706.50M	USD	1 Quarter
Total costs and expenses	`CostsAndExpenses`	$706.50M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$61.45M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$61.45M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$101.52M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$101.52M	USD	1 Quarter
Other income	`OtherNonoperatingIncome`	$6.44M	USD	1 Quarter
Other income	`OtherNonoperatingIncome`	$6.44M	USD	1 Quarter
Other income	`OtherNonoperatingIncome`	$3.27M	USD	1 Quarter
Other income	`OtherNonoperatingIncome`	$3.27M	USD	1 Quarter
Interest expense	`InterestExpense`	$13.22M	USD	1 Quarter
Interest expense	`InterestExpense`	$13.22M	USD	1 Quarter
Interest expense	`InterestExpense`	$13.15M	USD	1 Quarter
Interest expense	`InterestExpense`	$13.15M	USD	1 Quarter
Earnings before taxes on income	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$54.67M	USD	1 Quarter
Earnings before taxes on income	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$54.67M	USD	1 Quarter
Earnings before taxes on income	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$91.64M	USD	1 Quarter
Earnings before taxes on income	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$91.64M	USD	1 Quarter
Provision for taxes on income	`IncomeTaxExpenseBenefit`	$21.73M	USD	1 Quarter
Provision for taxes on income	`IncomeTaxExpenseBenefit`	$21.73M	USD	1 Quarter
Provision for taxes on income	`IncomeTaxExpenseBenefit`	$14.05M	USD	1 Quarter
Provision for taxes on income	`IncomeTaxExpenseBenefit`	$14.05M	USD	1 Quarter
Net earnings	`ProfitLoss`	$40.62M	USD	1 Quarter
Net earnings	`ProfitLoss`	$40.62M	USD	1 Quarter
Net earnings	`ProfitLoss`	$69.92M	USD	1 Quarter
Net earnings	`ProfitLoss`	$69.92M	USD	1 Quarter
Net loss attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-153.00K	USD	1 Quarter
Net loss attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-153.00K	USD	1 Quarter
Net loss attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-77.00K	USD	1 Quarter
Net loss attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-77.00K	USD	1 Quarter
Net earnings attributable to Kirby	`NetIncomeLoss`	$70.07M	USD	1 Quarter
Net earnings attributable to Kirby	`NetIncomeLoss`	$70.07M	USD	1 Quarter
Net earnings attributable to Kirby	`NetIncomeLoss`	$40.70M	USD	1 Quarter
Net earnings attributable to Kirby	`NetIncomeLoss`	$40.70M	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$1.20	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$1.20	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$0.68	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$0.68	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$1.19	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$1.19	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$0.68	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$0.68	USD	1 Quarter

Cash Flow Statement 120 line items

Line Item	Tag	Value	Unit	Period
Net earnings	`ProfitLoss`	$40.62M	USD	1 Quarter
Net earnings	`ProfitLoss`	$40.62M	USD	1 Quarter
Net earnings	`ProfitLoss`	$69.92M	USD	1 Quarter
Net earnings	`ProfitLoss`	$69.92M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$51.11M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$51.11M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$57.64M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$57.64M	USD	1 Quarter
Provision for deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$9.41M	USD	1 Quarter
Provision for deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$9.41M	USD	1 Quarter
Provision for deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$12.57M	USD	1 Quarter
Provision for deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$12.57M	USD	1 Quarter
Amortization of share-based compensation	`ShareBasedCompensation`	$5.81M	USD	1 Quarter
Amortization of share-based compensation	`ShareBasedCompensation`	$5.81M	USD	1 Quarter
Amortization of share-based compensation	`ShareBasedCompensation`	$6.41M	USD	1 Quarter
Amortization of share-based compensation	`ShareBasedCompensation`	$6.41M	USD	1 Quarter
Amortization of major maintenance costs	`AmortizationOfMajorMaintenanceCosts`	$8.35M	USD	1 Quarter
Amortization of major maintenance costs	`AmortizationOfMajorMaintenanceCosts`	$8.35M	USD	1 Quarter
Amortization of major maintenance costs	`AmortizationOfMajorMaintenanceCosts`	$6.99M	USD	1 Quarter
Amortization of major maintenance costs	`AmortizationOfMajorMaintenanceCosts`	$6.99M	USD	1 Quarter
Other	`OtherNoncashIncomeExpense`	$-1.61M	USD	1 Quarter
Other	`OtherNoncashIncomeExpense`	$-1.61M	USD	1 Quarter
Other	`OtherNoncashIncomeExpense`	$2.30M	USD	1 Quarter
Other	`OtherNoncashIncomeExpense`	$2.30M	USD	1 Quarter
Decrease in cash flows resulting from changes in operating assets and liabilities, net	`IncreaseDecreaseInOperatingCapital`	$98.32M	USD	1 Quarter
Decrease in cash flows resulting from changes in operating assets and liabilities, net	`IncreaseDecreaseInOperatingCapital`	$98.32M	USD	1 Quarter
Decrease in cash flows resulting from changes in operating assets and liabilities, net	`IncreaseDecreaseInOperatingCapital`	$30.04M	USD	1 Quarter
Decrease in cash flows resulting from changes in operating assets and liabilities, net	`IncreaseDecreaseInOperatingCapital`	$30.04M	USD	1 Quarter
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$123.29M	USD	1 Quarter
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$123.29M	USD	1 Quarter
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$16.48M	USD	1 Quarter
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$16.48M	USD	1 Quarter
Capital expenditures	`PaymentsToAcquireProductiveAssets`	$73.20M	USD	1 Quarter
Capital expenditures	`PaymentsToAcquireProductiveAssets`	$73.20M	USD	1 Quarter
Capital expenditures	`PaymentsToAcquireProductiveAssets`	$81.05M	USD	1 Quarter
Capital expenditures	`PaymentsToAcquireProductiveAssets`	$81.05M	USD	1 Quarter
Proceeds from disposition of assets	`ProceedsFromSaleOfProductiveAssets`	$8.03M	USD	1 Quarter
Proceeds from disposition of assets	`ProceedsFromSaleOfProductiveAssets`	$8.03M	USD	1 Quarter
Proceeds from disposition of assets	`ProceedsFromSaleOfProductiveAssets`	$2.41M	USD	1 Quarter
Proceeds from disposition of assets	`ProceedsFromSaleOfProductiveAssets`	$2.41M	USD	1 Quarter
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-78.64M	USD	1 Quarter
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-78.64M	USD	1 Quarter
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-65.17M	USD	1 Quarter
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-65.17M	USD	1 Quarter
Borrowings on bank credit facilities, net	`ProceedsFromRepaymentsOfLinesOfCredit`	$112.69M	USD	1 Quarter
Borrowings on bank credit facilities, net	`ProceedsFromRepaymentsOfLinesOfCredit`	$112.69M	USD	1 Quarter
Borrowings on bank credit facilities, net	`ProceedsFromRepaymentsOfLinesOfCredit`	$43.58M	USD	1 Quarter
Borrowings on bank credit facilities, net	`ProceedsFromRepaymentsOfLinesOfCredit`	$43.58M	USD	1 Quarter
Borrowings on long-term debt	`ProceedsFromRepaymentsOfNotesPayable`	-	USD	1 Quarter
Borrowings on long-term debt	`ProceedsFromRepaymentsOfNotesPayable`	-	USD	1 Quarter
Borrowings on long-term debt	`ProceedsFromRepaymentsOfNotesPayable`	$240.00M	USD	1 Quarter
Borrowings on long-term debt	`ProceedsFromRepaymentsOfNotesPayable`	$240.00M	USD	1 Quarter
Payments on long-term debt	`RepaymentsOfLongTermDebt`	$350.00M	USD	1 Quarter
Payments on long-term debt	`RepaymentsOfLongTermDebt`	$350.00M	USD	1 Quarter
Payments on long-term debt	`RepaymentsOfLongTermDebt`	-	USD	1 Quarter
Payments on long-term debt	`RepaymentsOfLongTermDebt`	-	USD	1 Quarter
Payment of debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$3.00K	USD	1 Quarter
Payment of debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$3.00K	USD	1 Quarter
Payment of debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$1.24M	USD	1 Quarter
Payment of debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$1.24M	USD	1 Quarter
Proceeds from exercise of stock options	`ProceedsFromStockOptionsExercised`	$118.00K	USD	1 Quarter
Proceeds from exercise of stock options	`ProceedsFromStockOptionsExercised`	$118.00K	USD	1 Quarter
Proceeds from exercise of stock options	`ProceedsFromStockOptionsExercised`	$1.51M	USD	1 Quarter
Proceeds from exercise of stock options	`ProceedsFromStockOptionsExercised`	$1.51M	USD	1 Quarter
Payments related to tax withholding for share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$5.28M	USD	1 Quarter
Payments related to tax withholding for share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$5.28M	USD	1 Quarter
Payments related to tax withholding for share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$3.56M	USD	1 Quarter
Payments related to tax withholding for share-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$3.56M	USD	1 Quarter
Treasury stock purchases	`PaymentsForRepurchaseOfCommonStock`	$3.18M	USD	1 Quarter
Treasury stock purchases	`PaymentsForRepurchaseOfCommonStock`	$3.18M	USD	1 Quarter
Treasury stock purchases	`PaymentsForRepurchaseOfCommonStock`	$41.79M	USD	1 Quarter
Treasury stock purchases	`PaymentsForRepurchaseOfCommonStock`	$41.79M	USD	1 Quarter
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-24.00K	USD	1 Quarter
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-24.00K	USD	1 Quarter
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-24.00K	USD	1 Quarter
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-24.00K	USD	1 Quarter
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-5.19M	USD	1 Quarter
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-5.19M	USD	1 Quarter
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-2.01M	USD	1 Quarter
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-2.01M	USD	1 Quarter
Increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$42.64M	USD	1 Quarter
Increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$42.64M	USD	1 Quarter
Increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-53.88M	USD	1 Quarter
Increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-53.88M	USD	1 Quarter
Cash and cash equivalents, beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$80.58M	USD	Point-in-time
Cash and cash equivalents, beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$80.58M	USD	Point-in-time
Cash and cash equivalents, beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$75.22M	USD	Point-in-time
Cash and cash equivalents, beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$75.22M	USD	Point-in-time
Cash and cash equivalents, beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$26.70M	USD	Point-in-time
Cash and cash equivalents, beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$26.70M	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`	$32.58M	USD	Point-in-time
Cash and cash equivalents, end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$80.58M	USD	Point-in-time
Cash and cash equivalents, end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$80.58M	USD	Point-in-time
Cash and cash equivalents, end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$75.22M	USD	Point-in-time
Cash and cash equivalents, end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$75.22M	USD	Point-in-time
Cash and cash equivalents, end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$26.70M	USD	Point-in-time
Cash and cash equivalents, end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$26.70M	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
Interest paid	`InterestPaidNet`	$20.29M	USD	1 Quarter
Interest paid	`InterestPaidNet`	$20.29M	USD	1 Quarter
Interest paid	`InterestPaidNet`	$21.51M	USD	1 Quarter
Interest paid	`InterestPaidNet`	$21.51M	USD	1 Quarter
Income taxes paid, net	`IncomeTaxesPaidNet`	$694.00K	USD	1 Quarter
Income taxes paid, net	`IncomeTaxesPaidNet`	$694.00K	USD	1 Quarter
Income taxes paid, net	`IncomeTaxesPaidNet`	$1.06M	USD	1 Quarter
Income taxes paid, net	`IncomeTaxesPaidNet`	$1.06M	USD	1 Quarter
Operating cash outflow from operating leases	`OperatingLeasePayments`	$11.26M	USD	1 Quarter
Operating cash outflow from operating leases	`OperatingLeasePayments`	$11.26M	USD	1 Quarter
Operating cash outflow from operating leases	`OperatingLeasePayments`	$10.45M	USD	1 Quarter
Operating cash outflow from operating leases	`OperatingLeasePayments`	$10.45M	USD	1 Quarter
Capital expenditures included in accounts payable	`CapitalExpendituresIncurredPaidAndNotYetPaid`	$8.20M	USD	1 Quarter
Capital expenditures included in accounts payable	`CapitalExpendituresIncurredPaidAndNotYetPaid`	$8.20M	USD	1 Quarter
Capital expenditures included in accounts payable	`CapitalExpendituresIncurredPaidAndNotYetPaid`	$-1.59M	USD	1 Quarter
Capital expenditures included in accounts payable	`CapitalExpendituresIncurredPaidAndNotYetPaid`	$-1.59M	USD	1 Quarter
Right-of-use assets obtained in exchange for lease obligations	`RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability`	$10.77M	USD	1 Quarter
Right-of-use assets obtained in exchange for lease obligations	`RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability`	$10.77M	USD	1 Quarter
Right-of-use assets obtained in exchange for lease obligations	`RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability`	$5.09M	USD	1 Quarter
Right-of-use assets obtained in exchange for lease obligations	`RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability`	$5.09M	USD	1 Quarter

Stockholders Equity 38 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`	$3.09B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.09B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.22B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.22B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.05B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.05B	USD	Point-in-time
Stock option exercises	`StockIssuedDuringPeriodValueStockOptionsExercised`	$1.51M	USD	1 Quarter
Stock option exercises	`StockIssuedDuringPeriodValueStockOptionsExercised`	$1.51M	USD	1 Quarter
Stock option exercises	`StockIssuedDuringPeriodValueStockOptionsExercised`	$118.00K	USD	1 Quarter
Stock option exercises	`StockIssuedDuringPeriodValueStockOptionsExercised`	$118.00K	USD	1 Quarter
Tax withholdings on equity award vesting	`AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation`	$5.28M	USD	1 Quarter
Tax withholdings on equity award vesting	`AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation`	$5.28M	USD	1 Quarter
Tax withholdings on equity award vesting	`AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation`	$3.56M	USD	1 Quarter
Tax withholdings on equity award vesting	`AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation`	$3.56M	USD	1 Quarter
Amortization of share-based compensation	`EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount`	$-6.41M	USD	1 Quarter
Amortization of share-based compensation	`EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount`	$-6.41M	USD	1 Quarter
Amortization of share-based compensation	`EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount`	$-5.81M	USD	1 Quarter
Amortization of share-based compensation	`EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount`	$-5.81M	USD	1 Quarter
Treasury stock purchases	`TreasuryStockValueAcquiredCostMethod`	$41.79M	USD	1 Quarter
Treasury stock purchases	`TreasuryStockValueAcquiredCostMethod`	$41.79M	USD	1 Quarter
Treasury stock purchases	`TreasuryStockValueAcquiredCostMethod`	$3.18M	USD	1 Quarter
Treasury stock purchases	`TreasuryStockValueAcquiredCostMethod`	$3.18M	USD	1 Quarter
Excise taxes on treasury stock purchases	`ExciseTaxesOnTreasuryStockPurchases`	$302.00K	USD	1 Quarter
Excise taxes on treasury stock purchases	`ExciseTaxesOnTreasuryStockPurchases`	$302.00K	USD	1 Quarter
Total comprehensive income, net of taxes	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$69.52M	USD	1 Quarter
Total comprehensive income, net of taxes	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$69.52M	USD	1 Quarter
Total comprehensive income, net of taxes	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$40.78M	USD	1 Quarter
Total comprehensive income, net of taxes	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$40.78M	USD	1 Quarter
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.19B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.19B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.09B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.09B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.22B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.22B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.05B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.05B	USD	Point-in-time

Comprehensive Income 28 line items

Line Item	Tag	Value	Unit	Period
Net earnings	`ProfitLoss`	$40.62M	USD	1 Quarter
Net earnings	`ProfitLoss`	$40.62M	USD	1 Quarter
Net earnings	`ProfitLoss`	$69.92M	USD	1 Quarter
Net earnings	`ProfitLoss`	$69.92M	USD	1 Quarter
Pension and postretirement benefits	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$395.00K	USD	1 Quarter
Pension and postretirement benefits	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$395.00K	USD	1 Quarter
Pension and postretirement benefits	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$61.00K	USD	1 Quarter
Pension and postretirement benefits	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$61.00K	USD	1 Quarter
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	-	USD	1 Quarter
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	-	USD	1 Quarter
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$225.00K	USD	1 Quarter
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$225.00K	USD	1 Quarter
Total other comprehensive income (loss), net of taxes	`OtherComprehensiveIncomeLossNetOfTax`	$-395.00K	USD	1 Quarter
Total other comprehensive income (loss), net of taxes	`OtherComprehensiveIncomeLossNetOfTax`	$-395.00K	USD	1 Quarter
Total other comprehensive income (loss), net of taxes	`OtherComprehensiveIncomeLossNetOfTax`	$164.00K	USD	1 Quarter
Total other comprehensive income (loss), net of taxes	`OtherComprehensiveIncomeLossNetOfTax`	$164.00K	USD	1 Quarter
Total comprehensive income, net of taxes	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$69.52M	USD	1 Quarter
Total comprehensive income, net of taxes	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$69.52M	USD	1 Quarter
Total comprehensive income, net of taxes	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$40.78M	USD	1 Quarter
Total comprehensive income, net of taxes	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$40.78M	USD	1 Quarter
Net loss attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-153.00K	USD	1 Quarter
Net loss attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-153.00K	USD	1 Quarter
Net loss attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-77.00K	USD	1 Quarter
Net loss attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-77.00K	USD	1 Quarter
Comprehensive income attributable to Kirby	`ComprehensiveIncomeNetOfTax`	$69.67M	USD	1 Quarter
Comprehensive income attributable to Kirby	`ComprehensiveIncomeNetOfTax`	$69.67M	USD	1 Quarter
Comprehensive income attributable to Kirby	`ComprehensiveIncomeNetOfTax`	$40.86M	USD	1 Quarter
Comprehensive income attributable to Kirby	`ComprehensiveIncomeNetOfTax`	$40.86M	USD	1 Quarter

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