| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 42992 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 23842 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | The mission of the Frenchman Bay Conservancy is to conserve distinctive ecosystems, lands, and waters for the benefit of all in the Union River and Frenchman Bay watersheds east to the Hancock County line. |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 25 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 25 |
| IRS990/AllOtherContributionsAmt | 0 | 688625 |
| IRS990/AllOtherExpensesGrp/FundraisingAmt | 0 | 1000 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 4953 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 36760 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 42713 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | Thomasina Dibiase |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 2074222328 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 71 Tidal Falls Road |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | Hancock |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | ME |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 04640 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 158461 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 99670 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 11533 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 22110 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 53549 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 87192 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 1 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 688625 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 100191 |
| IRS990/CYOtherExpensesAmt | 0 | 334859 |
| IRS990/CYOtherRevenueAmt | 0 | 9496 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 164078 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 299375 |
| IRS990/CYTotalExpensesAmt | 0 | 634234 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 70446 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 798312 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 1 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 3500 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 5570 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 8141 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 29134 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 42845 |
| IRS990/Desc | 0 | Preservation and stewardship of natural resources through the acquisition, monitoring, and maintenance of land and conservation easements (the Conservancy owns thirty properties and holds thirty-one easements). |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonatedServicesAndUseFcltsAmt | 0 | 420 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 2866822 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 2947278 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 1 |
| IRS990/ElectionOfBoardMembersInd | 0 | 1 |
| IRS990/EmployeeCnt | 0 | 6 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 329225 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 19043 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 19043 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 122 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 11256 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 11378 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 110 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 4546 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 57299 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 61955 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 10835 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 10835 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282FiledCnt | 0 | 1 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 1 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 20.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 25.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 20.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 15.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 5.00 |
| 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/IndividualTrusteeOrDirectorInd | 14 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 15 | 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/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 | 4360 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | Elisabeth Heyward |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | Malcolm Hunter Jr |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | Frank Dorsey |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | Randall Ewins |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | Mary Brennan |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | Lee Fairbanks |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | Nathaniel Hanson |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | David Manski |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | Paul Parshley |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | Tricia Rouleau |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | Henry Sharpe |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | Iris Simon |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | Benjamin Speed |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | Fred Stocking |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | Stephen Weber |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | Linda Welch |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | 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 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 16 | 87192 |
| 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 | President |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | Vice President |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | Secretary |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | Treasurer |
| 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 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | Executive Director |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1987 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 65053 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 16 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 362944 |
| IRS990/GrossReceiptsAmt | 0 | 1096203 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 16 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIInd | 0 | X |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 3547 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 3547 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 1195 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 14130 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 15325 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 35138 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 35138 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 1679822 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 1873378 |
| IRS990/IRPDocumentCnt | 0 | 21 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 127352 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 599831 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 1371158 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 1498510 |
| IRS990/LegalDomicileStateCd | 0 | ME |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 297891 |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 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 | The mission of the Frenchman Bay Conservancy is to conserve distinctive ecosystems, lands, and waters for the benefit of all in the Union River and Frenchman Bay watersheds east to the Hancock County line. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 6492805 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 6691328 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | 65053 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 65053 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 44859 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 3625983 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 3744050 |
| IRS990/NoncashContributionsAmt | 0 | 155997 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 7354 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 7354 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 8774 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 677 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 9451 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 3268367 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 2606354 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | -10834 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 2050 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 3754 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 9576 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 15380 |
| IRS990/OtherExpensesGrp/Desc | 0 | Dues and Subscriptions |
| IRS990/OtherExpensesGrp/Desc | 1 | Preserves Maintenance a |
| IRS990/OtherExpensesGrp/Desc | 2 | Printing and Postage |
| IRS990/OtherExpensesGrp/Desc | 3 | Miscellaneous |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 584 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 1 | 21659 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 2 | 1877 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 4071 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 598 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 35027 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 27485 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 16907 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 39682 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 27485 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 21659 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 19382 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 1 | 900099 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 2 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | Business Sponsorships |
| IRS990/OtherRevenueMiscGrp/Desc | 1 | Registrations |
| IRS990/OtherRevenueMiscGrp/Desc | 2 | Special Events |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 8274 |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 1 | 946 |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 2 | 276 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 8274 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 1 | 946 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 2 | 276 |
| IRS990/OtherRevenueTotalAmt | 0 | 9496 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 22184 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 42526 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 102992 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 167702 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 2796 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 5119 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 13061 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 20976 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 1083 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 1983 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 5059 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 8125 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 99155 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 55235 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 12196 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 11037 |
| IRS990/PrincipalOfficerNm | 0 | Randy Ewins |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| 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 | 89339 |
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