| IRS990/AccountantCompileOrReviewInd | 0 | false |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 21312 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 89473 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | THE MISSION OF THE FRENCHMAN BAY CONSERVANCY IS TO BUILD LASTING RELATIONSHIPS AND COMMITMENTS THAT CONSERVE THE DISTINCTIVE LANDSCAPES AND NATURAL RESOURCES OF THE FRENCHMAN BAY AND UNION RIVER WATERSHEDS. |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 341 |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 560 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 876 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 1777 |
| IRS990/AllOtherContributionsAmt | 0 | 1558953 |
| IRS990/AllOtherExpensesGrp/FundraisingAmt | 0 | 737 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 5319 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 2646 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 8702 |
| IRS990/AmendedReturnInd | 0 | X |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | true |
| IRS990/AuditCommitteeInd | 0 | true |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | THOMASINA DIBIASE |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 2074222328 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 71 TIDAL FALLS RD |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | HANCOCK |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | ME |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 04640 |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 62591 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 17883 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 24210 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 24210 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 32280 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 80700 |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | true |
| IRS990/CompensationProcessOtherInd | 0 | false |
| IRS990/ConflictOfInterestPolicyInd | 0 | true |
| IRS990/ConservationEasementsInd | 0 | true |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/ContriRptFundraisingEventAmt | 0 | 3754 |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 1562707 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | -31102 |
| IRS990/CYOtherExpensesAmt | 0 | 241557 |
| IRS990/CYOtherRevenueAmt | 0 | 7714 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 1113939 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 183823 |
| IRS990/CYTotalExpensesAmt | 0 | 425380 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 71916 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 1539319 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | true |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 6040 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 1000 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 1575 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 2199 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 7629 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 11403 |
| IRS990/Desc | 0 | PRESERVATION AND STEWARDSHIP OF NATURAL RESOURCES THROUGH THE ACQUISITION, MONITORING AND MAINTENANCE OF LAND AND CONSERVATION EASEMENTS (THE CONSERVANCY OWNS TWENTY-THREE PROPERTIES AND HOLDS THIRTY-ONE EASEMENTS). |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | true |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | true |
| IRS990/EmployeeCnt | 0 | 4 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | true |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 193306 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 8763 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 8763 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 386 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 8972 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 9358 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 4775 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 6428 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 77087 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 88290 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 10343 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 10343 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form8282PropertyDisposedOfInd | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 0.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 0.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 6.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 6.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 1.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 0.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 1.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 0.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 0.75 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 0.25 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 0.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 0.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 1.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 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/IndividualTrusteeOrDirectorInd | 14 | 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/PersonNm | 0 | RANDY EWINS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | DAVID SANDERSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | POLLY CECKLER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | KEN CLINE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | LISA HEYWARD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | IRIS SIMON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | STEPHEN WEBER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | JACK FROST |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | FRANK DORSEY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | MISHA MYTAR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | LEE FAIRBANKS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | JUDY ADELMAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | MARK BERRY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | MAC HUNTER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | HENRY SHARPE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | AARON DORITY |
| 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 | 80700 |
| 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/TitleTxt | 0 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | VICE PRESIDE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | TREASURER |
| 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 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | EXECUTIVE DI |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/FormationYr | 0 | 1987 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | true |
| IRS990/FundraisingActivitiesInd | 0 | true |
| IRS990/FundraisingAmt | 0 | 3754 |
| IRS990/FundraisingDirectExpensesAmt | 0 | 4936 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 12650 |
| IRS990/GainOrLossGrp/OtherAmt | 0 | -52387 |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 15 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossAmountSalesAssetsGrp/OtherAmt | 0 | 270000 |
| IRS990/GrossReceiptsAmt | 0 | 1866642 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 15 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartIXInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 7038 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 180 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 7218 |
| IRS990/InsuranceGrp/FundraisingAmt | 0 | 1790 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 3334 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 3387 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 8511 |
| IRS990/InterestGrp/ProgramServicesAmt | 0 | 17565 |
| IRS990/InterestGrp/TotalAmt | 0 | 17565 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 21285 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 21285 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 1002885 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 1342098 |
| IRS990/IRPDocumentCnt | 0 | 9 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 108206 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 171861 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 164304 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 272510 |
| IRS990/LegalDomicileStateCd | 0 | ME |
| IRS990/LessCostOthBasisSalesExpnssGrp/OtherAmt | 0 | 322387 |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembersOrStockholdersInd | 0 | true |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | THE MISSION OF THE FRENCHMAN BAY CONSERVANCY IS TO BUILD LASTING RELATIONSHIPS AND COMMITMENTS THAT CONSERVE THE DISTINCTIVE LANDSCAPES AND NATURAL RESOURCES OF THE FRENCHMAN BAY AND UNION RIVER WATERSHEDS. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/MortgNotesPyblScrdInvstPropGrp/BOYAmt | 0 | 346500 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/EOYAmt | 0 | 346500 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 3572641 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 4823800 |
| IRS990/NetGainOrLossInvestmentsGrp/RelatedOrExemptFuncIncomeAmt | 0 | -52387 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | -52387 |
| IRS990/NetIncmFromFundraisingEvtGrp/ExclusionAmt | 0 | 7714 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | 7714 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 137220 |
| IRS990/NoncashContributionsAmt | 0 | 429330 |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 1065 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 1488 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 1578 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 4131 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 14542 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 8021 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 4359 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 26922 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 2045183 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 1923529 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 685 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 1073 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 1216 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 2974 |
| IRS990/OtherExpensesGrp/Desc | 0 | PROPERTY MAINTENANCE |
| IRS990/OtherExpensesGrp/Desc | 1 | SITE INSPECTIONS |
| IRS990/OtherExpensesGrp/Desc | 2 | PROPERTY TAXES |
| IRS990/OtherExpensesGrp/Desc | 3 | DUES |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 120 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 340 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 2880 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 14319 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 10150 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 3526 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 14779 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 10150 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 3526 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 2880 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 17103 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 34204 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 29533 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 80840 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | false |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 3240 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 4523 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 4798 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 12561 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 1725 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 2356 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 2667 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 6748 |
| IRS990/PermanentlyRstrNetAssetsGrp/BOYAmt | 0 | 1310714 |
| IRS990/PermanentlyRstrNetAssetsGrp/EOYAmt | 0 | 1310714 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 317298 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 783762 |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 5989 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 9928 |
| IRS990/PrincipalOfficerNm | 0 | JACK FROST |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | PUBLIC EDUCATION IN REGARD TO THE PRESERVATION AND CONSERVATION OF NATURAL RESOURCES AND HABITAT (INCLUDING PUBLICATION OF NEWSLETTER AND SPONSORING OF SEMINARS). |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 33316 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 1307495 |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYInvestmentIncomeAmt | 0 | 15993 |
| IRS990/PYOtherExpensesAmt | 0 | 195102 |
| IRS990/PYOtherRevenueAmt | 0 | 2558 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 946186 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 171135 |
| IRS990/PYTotalExpensesAmt | 0 | 379860 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 13623 |
| IRS990/PYTotalRevenueAmt | 0 | 1326046 |
| IRS990/QuidProQuoContributionsInd | 0 | false |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | false |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 1113939 |
| 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 | false |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 340686 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 1019269 |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/ExplanationTxt | 0 | MISCELLANEOUS INCOME 2,793 |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/FormAndLineReferenceDesc | 0 | PART II, LINE 10 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 1562707 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 1307495 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 1648654 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 373831 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 361975 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 5254662 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt | 0 | 21285 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus1YearAmt | 0 | 15993 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 23525 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 23051 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 21975 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt | 0 | 105829 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 675 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 1803 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 315 |
| IRS990ScheduleA/OtherIncome170Grp/TotalAmt | 0 | 2793 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0.58030 |
| IRS990ScheduleA/PublicSupportPY170Pct | 0 | 0.55480 |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 3124143 |
| IRS990ScheduleA/SubstantialContributorsTotAmt | 0 | 2130519 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY170Ind | 0 | X |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt | 0 | 1562707 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt | 0 | 1307495 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 1648654 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 373831 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 361975 |
| IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt | 0 | 5254662 |
| IRS990ScheduleA/TotalSupportAmt | 0 | 5383366 |
| IRS990ScheduleA/UnrelatedBusinessNetIncm170Grp/CurrentTaxYearAmt | 0 | 7714 |
| IRS990ScheduleA/UnrelatedBusinessNetIncm170Grp/CurrentTaxYearMinus1YearAmt | 0 | 1558 |
| IRS990ScheduleA/UnrelatedBusinessNetIncm170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 2424 |
| IRS990ScheduleA/UnrelatedBusinessNetIncm170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 2552 |
| IRS990ScheduleA/UnrelatedBusinessNetIncm170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 5834 |
| IRS990ScheduleA/UnrelatedBusinessNetIncm170Grp/TotalAmt | 0 | 20082 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine2 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/State | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode | 0 | RESTRICTED |