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CONTINGENCIES (Details) (USD $) | 3 Months Ended
--- | ---
Mar. 31, 2015
Guarantor Obligations [Line Items] |
Issued guaranties | $ 32,552,000 us-gaap_GuaranteeObligationsMaximumExposure
Guarantor obligations, term | All of these instruments have an expiration date within four years
Performance Bonds [Member] |
Guarantor Obligations [Line Items] |
Issued guaranties | 25,904,000 us-gaap_GuaranteeObligationsMaximumExposure / us-gaap_UnderlyingAssetClassAxis = us-gaap_DebtSecuritiesPayableMember
Standby Letters Of Credit [Member] |
Guarantor Obligations [Line Items] |
Issued guaranties | 6,648,000 us-gaap_GuaranteeObligationsMaximumExposure / us-gaap_GuaranteeObligationsByNatureAxis = us-gaap_StandbyLettersOfCreditMember
Gulfco Marine Superfund Site [Member] |
Guarantor Obligations [Line Items] |
Number of other companies also named as Potentially Responsible Parties ("PRPs") | 3 kex_SiteContingencyNumberOfCompaniesNamedAsPotentiallyResponsiblePartiesUnderComprehensiveEnvironmentalResponseCompensationAndLiabilityAct / us-gaap_EnvironmentalRemediationSiteAxis = kex_GulfcoMarineSuperfundSiteMember
Number of companies named as Potentially Responsible Parties ("PRPs") | 4 kex_SiteContingencyNumberOfCompaniesNotifiedAsPotentiallyResponsiblePartiesUnderComprehensiveEnvironmentalResponse / us-gaap_EnvironmentalRemediationSiteAxis = kex_GulfcoMarineSuperfundSiteMember
EPA incurred cleanup expense | 9,943,000 kex_SiteContingencyEpaIncurredCleanupExpense / us-gaap_EnvironmentalRemediationSiteAxis = kex_GulfcoMarineSuperfundSiteMember
EPA oversight costs | $ 2,258,000 kex_EpaIncurredOversightCosts / us-gaap_EnvironmentalRemediationSiteAxis = kex_GulfcoMarineSuperfundSiteMember
Number of defendants seeking contribution and indemnity under CERCLA | 21 kex_NumberOfDefendantsSeekingContributionAndIndemnityUnderCERCLA / us-gaap_EnvironmentalRemediationSiteAxis = kex_GulfcoMarineSuperfundSiteMember
Collision with M/S Summer Wind [Member] |
Loss Contingencies [Line Items] |
Number of vessels damaged in collision resulting in fuel oil discharge | 1 kex_NumberOfVesselsDamagedInCollisionResultingInFuelOilDischarge / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_UnassertedClaimMember
Number of actions filed against the Company | 2 us-gaap_LossContingencyPendingClaimsNumber / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_UnassertedClaimMember
Number of crewmembers alleging damages | 2 us-gaap_LossContingencyNumberOfPlaintiffs / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_UnassertedClaimMember

X
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- Definition Represents the number of defendants seeking contribution for costs incurred in connection with its activities in cleaning up the Gulfco Site + References No definition available. + Details
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- Definition Number of vessels damaged in collision resulting in fuel oil discharge. + References No definition available. + Details
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- Definition Environmental Protection Agency incurred cleanup expense. + References No definition available. + Details
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- Definition Number of companies also named as potentially responsible parties under comprehensive environmental response compensation and liability act. + References No definition available. + Details
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- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
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