| IRS990/AccountantCompileOrReviewInd | 0 | false |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 1437309 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 2443575 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 301410 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 438364 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | The mission of the Tennessee Aquarium is to connect people with nature and empower them to make informed decisions about water and wildlife. |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 172343 |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 139341 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 1154063 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 1465747 |
| IRS990/AllOtherContributionsAmt | 0 | 788725 |
| IRS990/AllOtherExpensesGrp/FundraisingAmt | 0 | 56356 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 18927 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 295958 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 371241 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | true |
| IRS990/AuditCommitteeInd | 0 | true |
| IRS990/BenefitsToMembersGrp/TotalAmt | 0 | 0 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | GORDON STALANS |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 4232650695 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 201 CHESTNUT STREET |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | CHATTANOOGA |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | TN |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 37402 |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | true |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 2461198 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 1170280 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 5 |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 38413 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 38413 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 307303 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 384129 |
| IRS990/CompDisqualPersonsGrp/TotalAmt | 0 | 0 |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | true |
| IRS990/CompensationProcessOtherInd | 0 | true |
| IRS990/ConferencesMeetingsGrp/FundraisingAmt | 0 | 2498 |
| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 3203 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 55693 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 61394 |
| IRS990/ConflictOfInterestPolicyInd | 0 | true |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 4938080 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 1 | 988894 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 2 | 359148 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 3 | 356000 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 4 | 240700 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 2034 HAMILTON PLACE BLVD SUITE 400 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 1 | 102 CEDAR LANE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 2 | 2500 EAST 18TH STREET |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 3 | 736 MARKET STREET 18TH FLOOR |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 4 | 142 N MARKET STREET |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | CHATTANOOGA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 1 | CHATTANOOGA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 2 | CHATTANOOGA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 3 | CHATTANOOGA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 4 | CHATTANOOGA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | TN |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 1 | TN |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 2 | TN |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 3 | TN |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 4 | TN |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 37421 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 1 | 37421 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 2 | 37404 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 3 | 37402 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 4 | 37405 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | EMJ CORPORATION |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 1 | COUNTS COMPANY |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 2 | P & C CONSTRUCTION |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 3 | CHATTANOOGA CONVENTION & VISITORS BUREAU |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 4 | FRANKLIN ARCHITECTS |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | CONSTRUCTION SERVICES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 1 | CONSTRUCTION SERVICES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 2 | CONSTRUCTION SERVICES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 3 | ADVERTISING |
| IRS990/ContractorCompensationGrp/ServicesDesc | 4 | ARCHITECTURE SERVICES |
| IRS990/ContriRptFundraisingEventAmt | 0 | 100 |
| IRS990/CostOfGoodsSoldAmt | 0 | 1416043 |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 3116269 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 560926 |
| IRS990/CYOtherExpensesAmt | 0 | 13086892 |
| IRS990/CYOtherRevenueAmt | 0 | 3211577 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 16990732 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 1077221 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 9715391 |
| IRS990/CYTotalExpensesAmt | 0 | 22802283 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 1084091 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 23879504 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 1030367 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 1102047 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 19159 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 277644 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 3538551 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 3835354 |
| IRS990/Desc | 0 | Constructed as a catalyst for economic development in downtown Chattanooga, the Tennessee Aquarium produces numerous positive fiscal and economic impacts for our region year after year. We are proud to build upon more than twenty years of success as an economic engine for Chattanooga and its surrounding communities. Continued investments in our nonprofit Aquarium are directly correlated with the positive impacts we have on employment, visitation and spending in our region. |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | true |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 380 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | true |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/EscrowAccountInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 18972918 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FederatedCampaignsAmt | 0 | 2464 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 21700 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 21700 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 45846 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 45846 |
| IRS990/FeesForServicesLobbyingGrp/ManagementAndGeneralAmt | 0 | 10000 |
| IRS990/FeesForServicesLobbyingGrp/TotalAmt | 0 | 10000 |
| IRS990/FeesForServicesManagementGrp/TotalAmt | 0 | 0 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 78773 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 92989 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 1072528 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 1244290 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 25418 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 25418 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignGrantsGrp/TotalAmt | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form8282PropertyDisposedOfInd | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 006.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 004.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 004.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 002.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 002.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 002.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 002.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 002.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 002.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 002.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 002.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 002.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 002.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 002.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 002.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 002.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 002.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 002.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 18 | 040.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 19 | 040.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 20 | 040.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 21 | 040.00 |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 2 | X |
| 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/IndividualTrusteeOrDirectorInd | 14 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 15 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 16 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 17 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | 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 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 18 | 19326 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 19 | 21846 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 20 | 31750 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 21 | 17911 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | John Giblin |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | Kim Honeycutt |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | Ward Davenport |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | Ted Alling |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | Valoria Armstrong |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | John Foy |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | Phillip Fulmer |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | Sheldon Grizzle |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | Elizabeth Hammitt |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | Barbara Haskew |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | Alison Lebovitz |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | Will Martin |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | Allen McCallie |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | Franklin McCallie |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | Chris McKee |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | Kristina Montague |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | Greg Vital |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | Aaron Webb |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 18 | Keith Sanford |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 19 | Gordon Stalans |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 20 | Jackson Andrews |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 21 | Cynthia Todd |
| 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 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 18 | 230457 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 19 | 135620 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 20 | 116513 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 21 | 110927 |
| 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/ReportableCompFromRltdOrgAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 18 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 19 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 20 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 21 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | Trustee, Chair |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | Secretary |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | Treasurer |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | Trustee |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | Trustee |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | Trustee |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | Trustee |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | Trustee |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | Trustee |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | Trustee |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | Trustee |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | Trustee |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | Trustee |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | Trustee |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | Trustee |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | Trustee |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | Trustee |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | Trustee |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 18 | President |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 19 | V.P. Chief Financial Officer |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 20 | V.P. Chief Operating Officer |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 21 | V.P. Chief Marketing Development Officer |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/Form990TFiledInd | 0 | true |
| IRS990/FormationYr | 0 | 1989 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedBasisGrp/ConsolidatedBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | true |
| IRS990/FundraisingActivitiesInd | 0 | true |
| IRS990/FundraisingAmt | 0 | 100 |
| IRS990/FundraisingDirectExpensesAmt | 0 | 39794 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 133148 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 341645 |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 18 |
| IRS990/GovernmentGrantsAmt | 0 | 235113 |
| IRS990/GrantAmt | 0 | 129766 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 0 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 0 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 4404845 |
| IRS990/GrossReceiptsAmt | 0 | 29613935 |
| IRS990/GrossRentsGrp/RealAmt | 0 | 534909 |
| IRS990/GrossSalesOfInventoryAmt | 0 | 3767719 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IndependentAuditFinclStmtInd | 0 | true |
| IRS990/IndependentVotingMemberCnt | 0 | 18 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 4 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InformationTechnologyGrp/FundraisingAmt | 0 | 12104 |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 36313 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 355056 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 403473 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 0 |
| IRS990/InterestGrp/FundraisingAmt | 0 | 40377 |
| IRS990/InterestGrp/ManagementAndGeneralAmt | 0 | 80753 |
| IRS990/InterestGrp/ProgramServicesAmt | 0 | 686399 |
| IRS990/InterestGrp/TotalAmt | 0 | 807529 |
| IRS990/InventoriesForSaleOrUseGrp/BOYAmt | 0 | 239047 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 259655 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 219281 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 219281 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 7020839 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 7878939 |
| IRS990/InvestTaxExemptBondsInd | 0 | false |
| IRS990/IRPDocumentCnt | 0 | 13 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 63221677 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 56328364 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 60810384 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 124032061 |
| IRS990/LegalDomicileStateCd | 0 | TN |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 4063200 |
| IRS990/LessRentalExpensesGrp/RealAmt | 0 | 215394 |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | true |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembershipDuesAmt | 0 | 2089867 |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | The mission of the Tennessee Aquarium is to connect people with nature and empower them to make informed decisions about water and wildlife. We celebrate the rich biodiversity of the Southeast through our exhibits and are actively engaged in preserving and restoring that biodiversity through our work in the field. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/MortgNotesPyblScrdInvstPropGrp/BOYAmt | 0 | 3610681 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/EOYAmt | 0 | 3153704 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 47461644 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 48503701 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | 341645 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 341645 |
| IRS990/NetIncmFromFundraisingEvtGrp/ExclusionAmt | 0 | 93354 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | 93354 |
| IRS990/NetIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 1927355 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 2351676 |
| IRS990/NetIncomeOrLossGrp/UnrelatedBusinessRevenueAmt | 0 | 424321 |
| IRS990/NetRentalIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 319515 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 319515 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | -35164 |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 45421 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 199205 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 1794386 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 2039012 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 61842 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 63151 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 976771 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 1101764 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OnBehalfOfIssuerInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 114599 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 147359 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 59153 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 38399 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 848691 |