| IRS990/AccountantCompileOrReviewInd | 0 | false |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 11921 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 64018 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 26560 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 0 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | THE MISSION OF THE MONTEZUMA LAND CONSERVANCY IS TO PERMANENTLY PROTECT IMPORTANT OPEN LANDS IN PARTNERSHIP WITH LANDOWNERS, IN ORDER TO CONSERVE AGRICULTURAL, NATURAL AND SCENIC OPEN SPACE RESOURCES IN AND AROUND MONTEZUMA AND DOLORES COUNTIES. |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 2085 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 2085 |
| IRS990/AllAffiliatesIncludedInd | 0 | false |
| IRS990/AllOtherContributionsAmt | 0 | 165969 |
| IRS990/AllOtherExpensesGrp/FundraisingAmt | 0 | 1664 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 1629 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 17865 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 21158 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | true |
| IRS990/AuditCommitteeInd | 0 | true |
| IRS990/BackupWthldComplianceInd | 0 | true |
| IRS990/BenefitsToMembersGrp/TotalAmt | 0 | 0 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | Lindsay Yarbrough |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 9705651664 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 216 W Montezuma Ave |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | Cortez |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | CO |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 81321 |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 0 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 1 |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 8086 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 45824 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 53910 |
| IRS990/CompDisqualPersonsGrp/TotalAmt | 0 | 0 |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | true |
| IRS990/CompensationProcessOtherInd | 0 | false |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 0 |
| IRS990/ConflictOfInterestPolicyInd | 0 | true |
| IRS990/ConservationEasementsInd | 0 | true |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 109858 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | PO Box 263 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | Mancos |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | CO |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 81328 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | Lighthouse Construction |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | Construction service |
| IRS990/CreditCounselingInd | 0 | true |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 482310 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 80287 |
| IRS990/CYOtherExpensesAmt | 0 | 191710 |
| IRS990/CYOtherRevenueAmt | 0 | 24615 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 5548 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 175962 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 225088 |
| IRS990/CYTotalExpensesAmt | 0 | 416798 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 42099 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 592760 |
| IRS990/DAFExcessBusinessHoldingsInd | 0 | false |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | true |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 1583 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 1583 |
| IRS990/Desc | 0 | LAND PROTECTION AND CONSERVATION - DURING 2018 THE CONSERVANCY WORKED WITHLANDOWNERS TO SEEK FUNDING FOR FOUR NEW CONSERVATION PROJECTS. THESE EASEMENTS WERE PART OF THE CONSERVANCY'S FOCUSED PROGRAM OF PURCHASING CONSERVATION EASEMENTS IN BARGAIN SALE TRANSACTIONS FUNDED BY PARTNERING GOVERNMENTS AND ORGANIZATIONS AND RECEIVING DONATED EASEMENTS. |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DistributionToDonorInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | false |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 5 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | true |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/EscrowAccountInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 181775 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/FundraisingAmt | 0 | 111 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 995 |
| IRS990/FeesForServicesAccountingGrp/ProgramServicesAmt | 0 | 9950 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 11056 |
| IRS990/FeesForServicesLegalGrp/FundraisingAmt | 0 | 59 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 535 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 5346 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 5940 |
| IRS990/FeesForServicesLobbyingGrp/TotalAmt | 0 | 0 |
| IRS990/FeesForServicesManagementGrp/TotalAmt | 0 | 0 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 126 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 1708 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 16879 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 18713 |
| IRS990/FeesForServicesProfFundraising/TotalAmt | 0 | 0 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ProgramServicesAmt | 0 | 15186 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 15186 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignGrantsGrp/TotalAmt | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form1098CFiledInd | 0 | false |
| IRS990/Form8282FiledCnt | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | false |
| IRS990/Form8899Filedind | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 1 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 2 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 3 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 4 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 5 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 6 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 7 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 8 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 9 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 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/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/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/PersonNm | 0 | Jeanne Becker |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | Betty James |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | Duncan Rose |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | Jane Anderson |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | Jeremy Christensen |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | Robby Henes |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | Louis Meyer |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | Stan Mattingly |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | Judy Garrigues |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | Travis Custer |
| 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 | 53910 |
| 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/TitleTxt | 0 | President |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | Vice President |
| 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 | Executive Dir. |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/Form990TFiledInd | 0 | false |
| IRS990/FormationYr | 0 | 1998 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | true |
| IRS990/FundraisingActivitiesInd | 0 | true |
| IRS990/FundraisingDirectExpensesAmt | 0 | 11588 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 36163 |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 10 |
| IRS990/GovernmentGrantsAmt | 0 | 316341 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 0 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 0 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 604348 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IncmFromInvestBondProceedsGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | true |
| IRS990/IndependentVotingMemberCnt | 0 | 0 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 0 |
| IRS990/InsuranceGrp/FundraisingAmt | 0 | 161 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 161 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 7638 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 7960 |
| IRS990/IntangibleAssetsGrp/EOYAmt | 0 | 0 |
| IRS990/InterestGrp/TotalAmt | 0 | 0 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 0 |
| IRS990/InvestmentIncomeGrp/RelatedOrExemptFuncIncomeAmt | 0 | 80287 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 80287 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/InvestmentsOtherSecuritiesGrp/EOYAmt | 0 | 0 |
| IRS990/InvestmentsProgramRelatedGrp/EOYAmt | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 1423555 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 1327624 |
| IRS990/InvestTaxExemptBondsInd | 0 | false |
| IRS990/IRPDocumentCnt | 0 | 13 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 10900 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 344691 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 343108 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 354008 |
| IRS990/LegalDomicileStateCd | 0 | CO |
| IRS990/LicensedMoreThanOneStateInd | 0 | false |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | false |
| IRS990/MinutesOfGoverningBodyInd | 0 | false |
| IRS990/MissionDesc | 0 | THE MISSION OF THE MONTEZUMA LAND CONSERVANCY IS TO PERMANENTLY PROTECT IMPORTANT OPEN LANDS IN PARTNERSHIP WITH LANDOWNERS, IN ORDER TO CONSERVE AGRICULTURAL, NATURAL AND SCENIC OPEN SPACE RESOURCES IN AND AROUND MONTEZUMA AND DOLORES COUNTIES. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 2112356 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 2133277 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetIncmFromFundraisingEvtGrp/ExclusionAmt | 0 | 24575 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | 24575 |
| IRS990/NetIncomeFromGamingGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | -155041 |
| IRS990/NoncashContributionsAmt | 0 | 53563 |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 308 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 317 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 16361 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 16986 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 27061 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 250 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 14554 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 41865 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OnBehalfOfIssuerInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OrgFiledInLieuOfForm1041Ind | 0 | false |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 1 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 227660 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 729 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 729 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 14471 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 15929 |
| IRS990/OtherExpensesGrp/Desc | 0 | Stipend for Americorps |
| IRS990/OtherExpensesGrp/Desc | 1 | Contract Labor |
| IRS990/OtherExpensesGrp/Desc | 2 | Dues & Subscriptions |
| IRS990/OtherExpensesGrp/Desc | 3 | Printing and Publications |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 66 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 1 | 214 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 2 | 1030 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 827 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 627 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 2 | 139 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 14616 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 10396 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 7314 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 5893 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 14616 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 11289 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 8155 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 7062 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 33585 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 531390 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | Other revenue |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 40 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 40 |
| IRS990/OtherRevenueTotalAmt | 0 | 40 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 9570 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 23886 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 102240 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 135696 |
| IRS990/OthNotesLoansReceivableNetGrp/EOYAmt | 0 | 0 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PaymentsToAffiliatesGrp/TotalAmt | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | false |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 782 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 2478 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 11936 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 15196 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 218 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 218 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 3921 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 4357 |
| IRS990/PermanentlyRstrNetAssetsGrp/BOYAmt | 0 | 178187 |
| IRS990/PermanentlyRstrNetAssetsGrp/EOYAmt | 0 | 178187 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 0 |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 4535 |
| IRS990/PrincipalOfficerNm | 0 | Jeanne Becker |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | Fee for Service |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 5548 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 5548 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | STEWARDSHIP-AT THE BEGINNING OF THE YEAR, MONTEZUMA LAND CONSERVANCY WAS RESPONSIBLEFOR 88 CONSERVATION EASEMENTS IN COLORADO, TOTALING APPROXIMATELY 44,521 ACRES. BYTHE END OF THE YEAR THE CONSERVANCY WAS RESPONSIBLE FOR 88 EASEMENTS TOTALINGAPPROXIMATELY 44,521 ACRES. NO EASEMENT RESTRICTIONS WERE DECREASED OR TERMINATED.THE CONSERVANCY PERFORMED MONITORING ON ALL OF THE EASEMENTS THEREBY ENSURING THECONTINUED PROTECTION OF THESE IMPORTANT LANDS. |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 128895 |
| IRS990/ProgSrvcAccomActy3Grp/Desc | 0 | OUTREACH-THE PURPOSE OF MONTEZUMA LAND CONSERVANCY'S PUBLIC OUTREACH AND EDUCATIONPROGRAM IS TO PROVIDE INFORMATION TO STAKEHOLDERS ABOUT LAND CONSERVATION, AND THEMONTEZUMA LAND CONSERVANCY, IN ORDER TO INSPIRE STAKEHOLDERS TO ACT ON BEHALF OF LAND CONSERVATION AND THE MONTEZUMA LAND CONSERVANCY. THE CONSERVANCY ENGAGES PEOPLETHROUGH NEWSLETTERS, FIELD TRIPS, INFORMATIONAL EVENTS, NEWS RELEASES, ITS WEBSITEAND, WORKSHOPS AND MEETINGS WITH LANDOWNERS IN THE COMMUNITY. ADDITIONALLY, MLCS EDUCATION EFFORTS INCLUDE PARTNERSHIPS WITH OTHER LOCAL NON-PROFITS AND LOCAL SCHOOL DISTRICTS TO PROVIDE EDUCATION AND INTERNSHIP OPPORTUNITES TO LOCAL YOUTH WITH THE PRIMARY PURPOSE OF CONNECTING THEM TO LAND AND CREATING PATHWAYS TO CAREERS IN CONSERVATION. |
| IRS990/ProgSrvcAccomActy3Grp/ExpenseAmt | 0 | 19830 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 700784 |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYInvestmentIncomeAmt | 0 | 35303 |
| IRS990/PymtTravelEntrtnmntPubOfclGrp/TotalAmt | 0 | 0 |
| IRS990/PYOtherExpensesAmt | 0 | 499752 |
| IRS990/PYOtherRevenueAmt | 0 | 22421 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 12063 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 106999 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 163820 |
| IRS990/PYTotalExpensesAmt | 0 | 663572 |
| IRS990/PYTotalRevenueAmt | 0 | 770571 |
| IRS990/QuidProQuoContributionsInd | 0 | false |
| IRS990/RcvblFromDisqualifiedPrsnGrp/EOYAmt | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | false |
| IRS990/ReceivablesFromOfficersEtcGrp/EOYAmt | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 175962 |
| IRS990/RegularMonitoringEnfrcInd | 0 | true |
| IRS990/RelatedEntityInd | 0 | false |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | true |
| IRS990/ReportOtherAssetsInd | 0 | true |
| IRS990/ReportOtherLiabilitiesInd | 0 | true |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/RoyaltiesGrp/TotalAmt | 0 | 0 |
| IRS990/RoyaltiesRevenueGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 329470 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 327953 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 458866 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 700784 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 1581104 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 977154 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 618034 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 4335942 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl170Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt | 0 | 80287 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus1YearAmt | 0 | 35303 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 107864 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 65841 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 53150 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt | 0 | 342445 |
| IRS990ScheduleA/OtherIncome170Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0.92680 |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 4335942 |
| IRS990ScheduleA/SubstantialContributorsTotAmt | 0 | 0 |
| IRS990ScheduleA/TaxRevLeviedOrgnztnlBnft170Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY170Ind | 0 | X |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt | 0 | 458866 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt | 0 | 700784 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 1581104 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 977154 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 618034 |
| IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt | 0 | 4335942 |
| IRS990ScheduleA/TotalSupportAmt | 0 | 4678387 |
| IRS990ScheduleA/UnrelatedBusinessNetIncm170Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1 | 0 | RESTRICTED |