| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 15477 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 100163 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 0 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 74029 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | FOUNDED IN 1974, THE INTERNATIONAL LIQUID TERMINALS ASSOCIATION (ILTA) IS AN ADVOCATE AND KEY RESOURCE FOR THE LIQUID TERMINAL INDUSTRY. WITH HEADQUARTERS IN THE WASHINGTON, DC, AREA, ILTA ADVOCATES ON BEHALF OF THE LIQUID TERMINAL INDUSTRY IN CONGRESS AND AT THE FEDERAL AGENCIES. ILTA ALSO MAINTAINS CLOSE WORKING RELATIONSHIPS WITH OTHER ORGANIZATIONS THAT INTERACT WITH THE TANK STORAGE INDUSTRY. |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 71489 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | INTERNATIONAL LIQUID TERMINALS ASSOCIATION |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 7038752011 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 1005 N GLEBE ROAD SUITE 600 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | ARLINGTON |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | VA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 22201 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 1132073 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 617115 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 1 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 701459 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 1 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 872480 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 112700 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 910 17TH STREET NW SUITE 800 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | WASHINGTON |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | DC |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 20006 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | CONRAD LAW & POLICY COUNSEL |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | LEGAL SERVICES |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 0 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 84858 |
| IRS990/CYOtherExpensesAmt | 0 | 1777229 |
| IRS990/CYOtherRevenueAmt | 0 | -87501 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 2841981 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 33856 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 1028253 |
| IRS990/CYTotalExpensesAmt | 0 | 2805482 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 2839338 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 1 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 1023683 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 621108 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 25273 |
| IRS990/Desc | 0 | ILTA MEMBERS REPRESENT A DIVERSE GROUP OF COMPANIES THAT ARE A CRITICAL LINK IN THE TRANSPORTATION SYSTEMS FOR LIQUID COMMODITIES. ILTA HAS TWO MEMBERSHIP CATEGORIES: TERMINAL MEMBERS AND SUPPLIER MEMBERS. ALL OF ILTA'S MEMBERS, LARGE AND SMALL, SHARE THE BELIEF THAT A UNIFIED ASSOCIATION IS IN THEIR BEST INTEREST. AS AN ASSOCIATION, WE ENABLE OUR MEMBERS TO POOL THEIR RESOURCES TO MORE EFFECTIVELY MONITOR AND HELP TO SHAPE GOVERNMENT LAWS AND REGULATIONS, AND TO FOSTER EDUCATIONAL, TRAINING, AND NETWORKING OPPORTUNITIES FOR THE ENTIRE INDUSTRY. |
| IRS990/DescribedInSection501c3Ind | 0 | 0 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 0 |
| IRS990/DoingBusinessAsName/BusinessNameLine1Txt | 0 | ILTA |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 1 |
| IRS990/EmployeeCnt | 0 | 12 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 202281 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 22233 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 2371 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 7 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 8 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 9 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 10 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 11 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 12 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 13 | X |
| IRS990/Form990PartVIISectionAGrp/KeyEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 26019 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | JOHN A ROLLER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | JAMES F DUGAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | BERNT A NETLAND |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | CLIFFORD R MIDDENDORF |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | ERIC CONARD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | VINCENT J DI COSIMO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | JOSHUA A ETZEL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | RANCE A FROMME |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | JONATHAN A HUNT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | DONALD K MCCORD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | JOSEPH B NASSIF |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | SHAUN M REVERE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | T PRATT SUMMERS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | TIMOTHY C WINTERS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | KATHRYN CLAY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | MELINDA WHITNEY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | PETER LIDIAK |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 14 | 260000 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 15 | 213869 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 16 | 201571 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | CHAIRMAN |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | VICE CHAIRMAN |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | PRESIDENT - FORMER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | VICE PRESIDENT GOVERNMENT AFFAIRS |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/Form990TFiledInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1974 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 14 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 2839338 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 14 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 3 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIIInd | 0 | X |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 16946 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 10297 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 84858 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 84858 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsOtherSecuritiesGrp/BOYAmt | 0 | 2943524 |
| IRS990/InvestmentsOtherSecuritiesGrp/EOYAmt | 0 | 2986973 |
| IRS990/IRPDocumentCnt | 0 | 14 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 231817 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 74112 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 62944 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 294761 |
| IRS990/LegalDomicileStateCd | 0 | VA |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 1 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | TO BENEFIT OUR MEMBERS BY PROVIDING RESOURCES THAT ENABLE THE LIQUID TERMINAL INDUSTRY TO THRIVE. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 3150753 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 3153090 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 2640 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | -31519 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 189952 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 50793 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501cInd | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 13826 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 13826 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 25825 |
| IRS990/OtherExpensesGrp/Desc | 0 | OTHER SERVICES |
| IRS990/OtherExpensesGrp/Desc | 1 | STAFF, BOARD AND COMMIT |
| IRS990/OtherExpensesGrp/Desc | 2 | BANK AND CREDIT CARD FE |
| IRS990/OtherExpensesGrp/Desc | 3 | INDUSTRY RELATIONS |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 130139 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 102047 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 63960 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 16968 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 63161 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 75877 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | MISCELLANEOUS |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | -87501 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | -87501 |
| IRS990/OtherRevenueTotalAmt | 0 | -87501 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 218673 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 66908 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 15388 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 89539 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 195351 |
| IRS990/PrincipalOfficerNm | 0 | KATHRYN CLAY PHD |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 900099 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 900099 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 2 | 900099 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 3 | 900099 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 4 | 900099 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | ANNUAL CONFERENCE |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | MEMBERSHIP DUES |
| IRS990/ProgramServiceRevenueGrp/Desc | 2 | EXHIBIT SPACE |
| IRS990/ProgramServiceRevenueGrp/Desc | 3 | BOARD MEETING REVENUE |
| IRS990/ProgramServiceRevenueGrp/Desc | 4 | SALES |
| IRS990/ProgramServiceRevenueGrp/ExclusionAmt | 0 | 26100 |
| IRS990/ProgramServiceRevenueGrp/ExclusionAmt | 1 | 780147 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 1110019 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 884273 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 2 | 21082 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 3 | 19353 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 1136119 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 884273 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 2 | 780147 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 3 | 21082 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 4 | 19353 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | ILTA HOSTS A NUMBER OF MEETINGS AND TRAINING PROGRAMS ON AN ANNUAL BASIS. THESE EVENTS FOCUS ON A RANGE OF TOPICS, OFFERING ATTENDEES THE MOST CURRENT INFORMATION ON INDUSTRY TRENDS, REGULATORY DEVELOPMENTS AND POLICY ISSUES. SOME MEETINGS ARE OPEN TO ALL TERMINAL INDUSTRY PROFESSIONALS WHILE OTHERS ARE EXCLUSIVELY FOR ILTA MEMBERS. |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/PYInvestmentIncomeAmt | 0 | 52461 |
| IRS990/PYOtherExpensesAmt | 0 | 1341471 |
| IRS990/PYOtherRevenueAmt | 0 | 0 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 2706784 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 242087 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 1175687 |
| IRS990/PYTotalExpensesAmt | 0 | 2517158 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 2759245 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 33856 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 1 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 1 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 1 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 1 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/ScheduleBRequiredInd | 0 | 0 |
| IRS990ScheduleC/AggregateReportedDuesNtcAmt | 0 | 84387 |
| IRS990ScheduleC/AgreeCarryoverPriorYearInd | 0 | 0 |
| IRS990ScheduleC/DuesAssessmentsAmt | 0 | 843873 |
| IRS990ScheduleC/NonDeductibleLbbyngPltclCYAmt | 0 | 70550 |
| IRS990ScheduleC/NonDeductibleLbbyngPltclTotAmt | 0 | 70550 |
| IRS990ScheduleC/OnlyInHouseLobbyingInd | 0 | 0 |
| IRS990ScheduleC/SubstantiallyAllDuesNondedInd | 0 | 0 |
| IRS990ScheduleC/TaxableAmt | 0 | -13837 |
| IRS990ScheduleD/EquipmentGrp/BookValueAmt | 0 | 37849 |
| IRS990ScheduleD/EquipmentGrp/DepreciationAmt | 0 | 188174 |
| IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt | 0 | 226023 |
| IRS990ScheduleD/ExpensesNotReportedAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesNotRptFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesSubtotalAmt | 0 | 2805482 |
| IRS990ScheduleD/FootnoteTextInd | 0 | X |
| IRS990ScheduleD/LeaseholdImprovementsGrp/BookValueAmt | 0 | 0 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/DepreciationAmt | 0 | 26913 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/OtherCostOrOtherBasisAmt | 0 | 26913 |
| IRS990ScheduleD/NetUnrealizedGainsInvstAmt | 0 | -31519 |
| IRS990ScheduleD/OtherLandBuildingsGrp/BookValueAmt | 0 | 25095 |
| IRS990ScheduleD/OtherLandBuildingsGrp/DepreciationAmt | 0 | 16730 |
| IRS990ScheduleD/OtherLandBuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 41825 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 0 | 75877 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 0 | DEFERRED RENT |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 0 | 2986973 |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 0 | MUTAL FUNDS |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 0 | F |
| IRS990ScheduleD/RevenueNotReportedAmt | 0 | -31519 |
| IRS990ScheduleD/RevenueNotReportedFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/RevenueSubtotalAmt | 0 | 2839338 |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 0 | IN ACCOUNTING FOR UNCERTAINTY IN INCOME TAXES, ACCOUNTING STANDARDS REQUIRE AN ENTITY TO RECOGNIZE THE FINANCIAL STATEMENT IMPACT OF A TAX POSITION WHEN IT IS MORE-LIKELY-THAN-NOT THAT THE POSITION WILL NOT BE SUSTAINED UPON EXAMINATION. MANAGEMENT EVALUATED THE ASSOCIATION'S TAX POSITIONS AND CONCLUDED THERE ARE NO UNCERTAIN TAX POSITIONS THAT REQUIRE ADJUSTMENT TO THE FINANCIAL STATEMENTS TO COMPLY WITH THE PROVISIONS OF THIS GUIDANCE. |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART X, LINE 2: |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 62944 |
| IRS990ScheduleD/TotalBookValueSecuritiesAmt | 0 | 2986973 |
| IRS990ScheduleD/TotalExpensesPerForm990Amt | 0 | 2805482 |
| IRS990ScheduleD/TotalLiabilityAmt | 0 | 75877 |
| IRS990ScheduleD/TotalRevenuePerForm990Amt | 0 | 2839338 |
| IRS990ScheduleD/TotalRevEtcAuditedFinclStmtAmt | 0 | 2807819 |
| IRS990ScheduleD/TotExpnsEtcAuditedFinclStmtAmt | 0 | 2805482 |
| IRS990ScheduleJ/BoardOrCommitteeApprovalInd | 0 | X |
| IRS990ScheduleJ/EquityBasedCompArrngmInd | 0 | 0 |
| IRS990/ScheduleJRequiredInd | 0 | 1 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BaseCompensationFilingOrgAmt | 0 | 260000 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BaseCompensationFilingOrgAmt | 1 | 213869 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BaseCompensationFilingOrgAmt | 2 | 201571 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusFilingOrganizationAmount | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusFilingOrganizationAmount | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusFilingOrganizationAmount | 2 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusRelatedOrganizationsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusRelatedOrganizationsAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusRelatedOrganizationsAmt | 2 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompensationBasedOnRltdOrgsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompensationBasedOnRltdOrgsAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompensationBasedOnRltdOrgsAmt | 2 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990FilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990FilingOrgAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990FilingOrgAmt | 2 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990RltdOrgsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990RltdOrgsAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990RltdOrgsAmt | 2 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompensationFlngOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompensationFlngOrgAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompensationFlngOrgAmt | 2 | 10931 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompRltdOrgsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompRltdOrgsAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompRltdOrgsAmt | 2 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsFilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsFilingOrgAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsFilingOrgAmt | 2 | 15088 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsRltdOrgsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsRltdOrgsAmt | 1 | 0 |