| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | THE MEMORIAL HEALTH FOUNDATION ENCOURAGES PHILANTHROPIC SUPPORT OF MARIETTA MEMORIAL HOSPITAL AND RELATED SERVICES. ACTIVITIES INCLUDE RAISING FUNDS, FUND STEWARDSHIP AND MAKING GRANTS TO IMPROVE HEALTH CARE IN THE MID-OHIO VALLEY. |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 12257 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 12257 |
| IRS990/AllOtherContributionsAmt | 0 | 562695 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1 | 0 | JAMES A WATSON JR |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 7403734877 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1 | 0 | 512 THIRD STREET |
| IRS990/BooksInCareOfDetail/USAddress/City | 0 | MARIETTA |
| IRS990/BooksInCareOfDetail/USAddress/State | 0 | OH |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCode | 0 | 45750 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 150 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 150 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 7531 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 42676 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 50207 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 0 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 3137 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 3137 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 1 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 562695 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 380156 |
| IRS990/CYInvestmentIncomeAmt | 0 | 1662183 |
| IRS990/CYOtherExpensesAmt | 0 | 64865 |
| IRS990/CYOtherRevenueAmt | 0 | 18117 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 1705695 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 92279 |
| IRS990/CYTotalExpensesAmt | 0 | 537300 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 2242995 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/Desc | 0 | THE FOLLOWING SERVICES AND DEPARTMENTS WERE ENHANCED AND SUPPORTED AT THE MARIETTA MEMORIAL HOSPITAL: CARDIAC REHAB, DIABETES, VASCULAR CARE, OCCUPATIONAL THERAPY, OUTREACH, CANCER CENTER CHARITY CARE, CHILD DEVELOPMENT AND AUDIOLOGY. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 0 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 2 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 523009 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ProgramServicesAmt | 0 | 10000 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 10000 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 14585 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 14585 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 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/IndividualTrusteeOrDirectorInd | 16 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 15 | 45563 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | LARRY HAWN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | NICOLE COIL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | ROLAND RIGGS III |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | JAMES WATSON JR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | BRETT BRONSKI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | BRUCE BRUNTON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | PAM CANNON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | COLLEEN COOK |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | AMY ELLIOTT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | DAVID HAAS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | TOM HOCKENBROCHT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | FRED HUNTER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | MATT MACATOL MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | LARRY UNROE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | SRINI VASAN MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | ERIC YOUNG |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | DWIGHT KIM POOLE DDS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | DANEKA HEDGES |
| 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 | 58152 |
| 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 | 350378 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | VICE CHAIRPERSON |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | VP ENDOWMENT FUNDS |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | CHAIRPERSON |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | EXECUTIVE DIRECTOR |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1981 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/ConsolidatedBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 1 |
| IRS990/FundraisingDirectExpensesAmt | 0 | 34599 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 52716 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | -1676859 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 17 |
| IRS990/GrantAmt | 0 | 380156 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 380156 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 380156 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 1 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 3954453 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 0 |
| IRS990/IndependentVotingMemberCnt | 0 | 15 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIInd | 0 | X |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 8924 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 8924 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 3339042 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 3339042 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 19900452 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 21065668 |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 21565 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 0 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 0 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 21565 |
| IRS990/LegalDomicileStateCd | 0 | OH |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 1676859 |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 0 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | THE MEMORIAL HEALTH FOUNDATION ENCOURAGES PHILANTHROPIC SUPPORT OF MARIETTA MEMORIAL HOSPITAL AND RELATED SERVICES. ACTIVITIES INCLUDE RAISING FUNDS, FUND STEWARDSHIP AND MAKING GRANTS TO IMPROVE HEALTH CARE IN THE MID-OHIO VALLEY. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 19991774 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 21205405 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | -1676859 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | -1676859 |
| IRS990/NetIncmFromFundraisingEvtGrp/ExclusionAmt | 0 | 18117 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | 18117 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | -159457 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 3696 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 3696 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 450 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 2955 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 3405 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 4596 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 0 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | -332607 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 262 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 1487 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 1749 |
| IRS990/OtherExpensesGrp/Desc | 0 | BAD DEBT |
| IRS990/OtherExpensesGrp/Desc | 1 | DONOR RECOGNITION |
| IRS990/OtherExpensesGrp/Desc | 2 | DUES |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 4110 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 2598 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 2153 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 4110 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 2598 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 2153 |
| IRS990/OtherInd | 0 | X |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 499 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 542287 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 5089 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 28838 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 33927 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 959 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 5437 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 6396 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 22871 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 154281 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrincipalOfficerNm | 0 | JAMES A WATSON JR |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 365998 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 80679 |
| IRS990/PYInvestmentIncomeAmt | 0 | 1365177 |
| IRS990/PYOtherExpensesAmt | 0 | 33815 |
| IRS990/PYOtherRevenueAmt | 0 | -21873 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 1487370 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 107438 |
| IRS990/PYTotalExpensesAmt | 0 | 221932 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 1709302 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 1705695 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 1 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 1 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RevenueAmt | 0 | 0 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 64204 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 527593 |
| IRS990ScheduleA/Contribution35ControlledInd | 0 | 0 |
| IRS990ScheduleA/ContributionControllerInd | 0 | 0 |
| IRS990ScheduleA/ContributionFamilyInd | 0 | 0 |
| IRS990ScheduleA/SupportedOrganizationsTotalCnt | 0 | 1 |
| IRS990ScheduleA/SupportedOrgInformationGrp/EIN | 0 | 314379509 |
| IRS990ScheduleA/SupportedOrgInformationGrp/GoverningDocumentListedInd | 0 | 0 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OrganizationTypeDesc | 0 | 3 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportAmt | 0 | 354156 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportedOrganizationName/BusinessNameLine1 | 0 | MARIETTA MEMORIAL HOSPITAL |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportedOrgNotifiedInd | 0 | 1 |
| IRS990ScheduleA/SupportedOrgInformationGrp/USOrganizedInd | 0 | 1 |
| IRS990ScheduleA/SupportingOrganization509a3Ind | 0 | X |
| IRS990ScheduleA/SupportingOrgType2Ind | 0 | X |
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| 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 |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 0 | RESTRICTED |
| IRS990/ScheduleBRequiredInd | 0 | 1 |
| IRS990ScheduleD/BoardDesignatedBalanceEOYPct | 0 | 1.00000 |
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| IRS990ScheduleD/EquipmentGrp/DepreciationAmt | 0 | 21565 |
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| IRS990ScheduleD/FootnoteTextInd | 0 | X |
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| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 1 | 110812 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 0 | GRANT OBLIGATIONS |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 1 | DUE TO RELATED PARTY |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 0 | THE HOSPITAL AND THE FOUNDATION ARE ORGANIZED AS TAX-EXEMPT ORGANIZATIONS UNDER SECTION 501 (C) (3) OF THE INTERNAL REVENUE CODE. ACCOUNTING PRINCIPLES GENERALLY ACCEPTED IN THE UNITED STATES OF AMERICA REQUIRE MANAGEMENT TO EVALUATE TAX POSITIONS TAKEN BY THE HOSPITAL, FOUNDATION, AND THE AUXILIARY AND RECOGNIZE IF THE HOSPITAL, FOUNDATION, AND THE AUXILIARY HAS TAKEN AN UNCERTAIN POSITION THAT MORE THAN LIKELY THAN NOT WOULD NOT BE SUSTAINED UPON EXAMINATION BY VARIOUS FEDERAL AND STATE TAXING AUTHORITIES. MANAGEMENT HAS ANALYZED THE TAX POSITIONS TAKEN BY THE HOSPITAL, FOUNDATION, AND THE AUXILIARY, AND HAS CONCLUDED THAT AS OF SEPTEMBER 30, 2014 AND 2013, THERE ARE NO UNCERTAIN POSITIONS TAKEN OR EXPECTED TO BE TAKEN THAT WOULD REQUIRE RECOGNITION OF A LIABILITY OR DISCLOSURE IN THE ACCOMPANYING FINANCIAL STATEMENTS. AS SUCH, THESE ENTITIES ARE GENERALLY EXEMPT FROM INCOME TAXES. HOWEVER, THEY ARE REQUIRED TO FILE FEDERAL FORM 990 RETURN OF ORGANIZATION EXEMPT FROM INCOME TAX WHICH IS AN INFORMATIONAL RETURN ONLY. THIS RETURN HAS BEEN FILED FOR PERIODS THROUGH 2013. |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART X, LINE 2: |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 0 |
| IRS990ScheduleD/TotalLiabilityAmt | 0 | 542287 |
| IRS990ScheduleG/FundraisingEventInformationGrp/DirectExpenseSummaryEventsAmt | 0 | 34599 |
| IRS990ScheduleG/FundraisingEventInformationGrp/GrossReceiptsEvent1Amt | 0 | 31391 |
| IRS990ScheduleG/FundraisingEventInformationGrp/GrossReceiptsEvent2Amt | 0 | 15380 |
| IRS990ScheduleG/FundraisingEventInformationGrp/GrossReceiptsOtherEventsAmt | 0 | 5945 |
| IRS990ScheduleG/FundraisingEventInformationGrp/GrossReceiptsTotalAmt | 0 | 52716 |
| IRS990ScheduleG/FundraisingEventInformationGrp/GrossRevenueEvent1Amt | 0 | 31391 |