| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 13006 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 5049 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | SEE PART III, LINE 1. |
| IRS990/AllOtherContributionsAmt | 0 | 304526 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | DONALD MAY |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 3018695800 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 1385 PICCARD DRIVE |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | ROCKVILLE |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MD |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 20850 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 106912 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 111995 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 1 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 0 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 1826 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 433 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 2259 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 150000 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 1385 PICCARD DRIVE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | ROCKVILLE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | MD |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 20850 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | MECHANICAL CONTRACTORS ASSOC OF AMERICA |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | MANAGEMENT SERVICES |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 304526 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 704000 |
| IRS990/CYInvestmentIncomeAmt | 0 | 1095347 |
| IRS990/CYOtherExpensesAmt | 0 | 337191 |
| IRS990/CYOtherRevenueAmt | 0 | 3943 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 362625 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/CYTotalExpensesAmt | 0 | 1041191 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 1403816 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 1 |
| IRS990/Desc | 0 | EDUCATION - FUNDS DEDICATED ARE DIRECTED TOWARD THE DEVELOPMENT AND ENHANCEMENT OF MECHANICAL CONTRACTING STUDENT CHAPTERS AND FACULTY AWARENESS OF INDUSTRY ISSUES. PROGRAMS INCLUDE STUDENT MCAA CONVENTION REGISTRATIONS, STUDENT CHAPTER COMPETITION, INTERNSHIPS, CHAPTER GRANTS, FACULTY TRAINING CONFERENCE, FACULTY INTERNSHIPS, EDUCATOR OF THE YEAR AWARD, AND STUDENT OF THE YEAR (FOSTER MCCARL) AWARD, CHAPTER OF THE YEAR. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DoingBusinessAsName/BusinessNameLine1Txt | 0 | MECHANICAL CONTRACTING EDUCATION AND RESEARCH FOUNDATION |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 1 |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 820097 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 11300 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 11300 |
| IRS990/FeesForServicesManagementGrp/ManagementAndGeneralAmt | 0 | 36267 |
| IRS990/FeesForServicesManagementGrp/ProgramServicesAmt | 0 | 113733 |
| IRS990/FeesForServicesManagementGrp/TotalAmt | 0 | 150000 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 8989 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 8989 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 127500 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 127500 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignGrantsGrp/ProgramServicesAmt | 0 | 10000 |
| IRS990/ForeignGrantsGrp/TotalAmt | 0 | 10000 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 2.00 |
| 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 | 23.00 |
| 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/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/PersonNm | 0 | MARK A ROGERS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | SCOTT L BERGER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | TIMOTHY J BRINK |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | TROY AICHELE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | BRIAN CAUFIELD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | KEVIN J CONDON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | KENNETH R MARINO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | STEVE SHIRLEY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | WILLIAM H TAVENNER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | MOSTAFA KHATTAB |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | DENNIS LANGLEY |
| 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/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 |
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| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | VICE PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | ACADEMIC REPRESENTATIVE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | EXECUTIVE DIRECTOR (SEE SCHED. O) |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1989 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 918988 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 10 |
| IRS990/GrantAmt | 0 | 704000 |
| IRS990/GrantsToDomesticIndividualsGrp/ProgramServicesAmt | 0 | 604000 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 604000 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 90000 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 90000 |
| IRS990/GrantsToIndividualsInd | 0 | 1 |
| IRS990/GrantsToOrganizationsInd | 0 | 1 |
| IRS990/GrantToRelatedPersonInd | 0 | 1 |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 7691483 |
| IRS990/GrossReceiptsAmt | 0 | 8176311 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 10 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 600 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 4599 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 5199 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 176359 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 176359 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsOtherSecuritiesGrp/BOYAmt | 0 | 26001 |
| IRS990/InvestmentsOtherSecuritiesGrp/EOYAmt | 0 | 26582 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 10866685 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 10560676 |
| IRS990/IRPDocumentCnt | 0 | 4 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LegalDomicileStateCd | 0 | MD |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 6772495 |
| 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 MECHANICAL CONTRACTING EDUCATION AND RESEARCH FOUNDATION (MCERF) ARTICULATES AND FUNDS THE MECHANICAL CONTRACTING INDUSTRY'S MOST CRITICAL HUMAN RESOURCE AND RESEARCH NEEDS. MCERF CULTIVATES AND SUPPORTS ACTIVITIES THAT ALLOW PROFESSIONALS IN THE MECHANICAL CONTRACTING INDUSTRY TO SUCCEED IN THEIR BUSINESSES. |
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| IRS990/MoreThan5000KToOrgInd | 0 | 1 |
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| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 11280705 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | 918988 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 918988 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | -834951 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 2187 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 27 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 2214 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherExpensesGrp/Desc | 0 | AWARDS |
| IRS990/OtherExpensesGrp/Desc | 1 | TAXES |
| IRS990/OtherExpensesGrp/Desc | 2 | DUES & SUBSCRIPTIONS |
| IRS990/OtherExpensesGrp/Desc | 3 | DESIGN & GRAPHIC ART |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 299 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 200 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 2 | 40 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 1962 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 35 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 2261 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 200 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 40 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 35 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | MISCELLANEOUS |
| IRS990/OtherRevenueMiscGrp/ExclusionAmt | 0 | 3943 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 3943 |
| IRS990/OtherRevenueTotalAmt | 0 | 3943 |
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| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PermanentlyRstrNetAssetsGrp/BOYAmt | 0 | 4853912 |
| IRS990/PermanentlyRstrNetAssetsGrp/EOYAmt | 0 | 4854501 |
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| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 268228 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 440 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 440 |
| IRS990/PrincipalOfficerNm | 0 | DENNIS LANGLEY |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | OUTREACH - PROGRAMS TARGETED FROM THE BEGINNING AND EXECUTED TO MAKE INFORMATION ABOUT THE MECHANICAL CONTRACTING INDUSTRY GENERALLY AVAILABLE TO ALL AUDIENCES. THIS INFORMATION IS TYPICALLY ACCESSED FREE OF CHARGE THROUGH THE INTERNET: WWW.MCERF.ORG, AND WWW.OPUSPIPING.ORG. |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 16922 |
| IRS990/ProgSrvcAccomActy3Grp/Desc | 0 | INDUSTRY RESEARCH - THE PRODUCTION OF EDUCATIONAL MATERIALS AND PUBLICATIONS TO FOSTER THE TECHNOLOGICAL ADVANCEMENT AND DISSEMINATION OF INFORMATION IN THE MECHANICAL CONTRACTING INDUSTRY, SUCH AS THE MEP BIM GUIDE AND THE WATER INNOVATION CHALLENGE. |
| IRS990/ProgSrvcAccomActy3Grp/ExpenseAmt | 0 | 5721 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
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| IRS990/PYContributionsGrantsAmt | 0 | 250016 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 314100 |
| IRS990/PYInvestmentIncomeAmt | 0 | 928626 |
| IRS990/PYOtherExpensesAmt | 0 | 404486 |
| IRS990/PYOtherRevenueAmt | 0 | 0 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 460056 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/PYTotalExpensesAmt | 0 | 718586 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 1178642 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 362625 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 0 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 0 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 0 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 529509 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 317833 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 304526 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 250016 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 226719 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 1215760 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 126240 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 2123261 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt | 0 | 176359 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus1YearAmt | 0 | 187604 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 184921 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 209989 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 189778 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt | 0 | 948651 |
| IRS990ScheduleA/GrossReceiptsRltdActivitiesAmt | 0 | 26094 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearAmt | 0 | 3943 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 93 |
| IRS990ScheduleA/OtherIncome170Grp/TotalAmt | 0 | 4036 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0.33420 |
| IRS990ScheduleA/PublicSupportPY170Pct | 0 | 0.32380 |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 1028097 |
| IRS990ScheduleA/SubstantialContributorsTotAmt | 0 | 1095164 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY170Ind | 0 | X |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt | 0 | 304526 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt | 0 | 250016 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 226719 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 1215760 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 126240 |
| IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt | 0 | 2123261 |
| IRS990ScheduleA/TotalSupportAmt | 0 | 3075948 |
| 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 |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 0 | RESTRICTED |
| IRS990/ScheduleBRequiredInd | 0 | 1 |
| IRS990ScheduleD/BoardDesignatedBalanceEOYPct | 0 | 0.00000 |
| IRS990ScheduleD/CYEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 4853912 |
| IRS990ScheduleD/CYEndwmtFundGrp/ContributionsAmt | 0 | 589 |
| IRS990ScheduleD/CYEndwmtFundGrp/EndYearBalanceAmt | 0 | 4854501 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 4853122 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/ContributionsAmt | 0 | 790 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 4853912 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 4852140 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/ContributionsAmt | 0 | 982 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 4853122 |
| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 4850849 |
| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/ContributionsAmt | 0 | 1291 |
| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 4852140 |
| IRS990ScheduleD/CYMinus4YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 4848900 |
| IRS990ScheduleD/CYMinus4YrEndwmtFundGrp/ContributionsAmt | 0 | 1949 |
| IRS990ScheduleD/CYMinus4YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 4850849 |
| IRS990ScheduleD/DonatedServicesAndUseFcltsAmt | 0 | 151223 |
| IRS990ScheduleD/DonatedServicesUseFcltsAmt | 0 | 151223 |
| IRS990ScheduleD/EndowmentsHeldRelatedOrgInd | 0 | 0 |
| IRS990ScheduleD/EndowmentsHeldUnrelatedOrgInd | 0 | 0 |
| IRS990ScheduleD/ExpensesNotReportedAmt | 0 | 151223 |
| IRS990ScheduleD/ExpensesNotRptFinclStmtAmt | 0 | 127500 |
| IRS990ScheduleD/ExpensesSubtotalAmt | 0 | 913691 |
| IRS990ScheduleD/FootnoteTextInd | 0 | X |
| IRS990ScheduleD/InvestmentExpensesNotIncld2Amt | 0 | 127500 |
| IRS990ScheduleD/InvestmentExpensesNotIncldAmt | 0 | 127500 |
| IRS990ScheduleD/NetUnrealizedGainsInvstAmt | 0 | -834951 |
| IRS990ScheduleD/PrmnntEndowmentBalanceEOYPct | 0 | 1.00000 |
| IRS990ScheduleD/RevenueNotReportedAmt | 0 | -683728 |
| IRS990ScheduleD/RevenueNotReportedFinclStmtAmt | 0 | 127500 |
| IRS990ScheduleD/RevenueSubtotalAmt | 0 | 1276316 |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 0 | TO UNDERWRITE EDUCATIONAL AND RESEARCH EFFORTS TO ADVANCE THE MECHANICAL CONTRACTING INDUSTRY. |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 1 | FOR THE YEARS ENDED DECEMBER 31, 2015 AND 2014, MCERF HAS DOCUMENTED ITS CONSIDERATION OF FASB ASC 740-10, INCOME TAXES, THAT PROVIDES GUIDANCE FOR REPORTING UNCERTAINTY IN INCOME TAXES AND HAS DETERMINED THAT NO MATERIAL UNCERTAIN TAX POSITIONS QUALIFY FOR EITHER RECOGNITION OR DISCLOSURE IN THE FINANCIAL STATEMENTS. |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART V, LINE 4: |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | PART X, LINE 2: |
| IRS990ScheduleD/TermEndowmentBalanceEOYPct | 0 | 0.00000 |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 0 |
| IRS990ScheduleD/TotalExpensesPerForm990Amt | 0 | 1041191 |
| IRS990ScheduleD/TotalRevenuePerForm990Amt | 0 | 1403816 |
| IRS990ScheduleD/TotalRevEtcAuditedFinclStmtAmt | 0 | 592588 |
| IRS990ScheduleD/TotExpnsEtcAuditedFinclStmtAmt | 0 | 1064914 |
| IRS990ScheduleF/BoycottCountriesInd | 0 | 0 |
| IRS990ScheduleF/ContinuationSpentAmt | 0 | 0 |
| IRS990ScheduleF/ContinutationTotalEmployeeCnt | 0 | 0 |
| IRS990ScheduleF/ContinutationTotalOfficeCnt | 0 | 0 |
| IRS990ScheduleF/ForeignCorpOwnershipInd | 0 | 0 |
| IRS990ScheduleF/ForeignPartnershipInd | 0 | 0 |
| IRS990ScheduleF/GrantsToOrgOutsideUSGrp/CashGrantAmt | 0 | 10000 |
| IRS990ScheduleF/GrantsToOrgOutsideUSGrp/MannerOfCashDisbursementTxt | 0 | CHECK |
| IRS990ScheduleF/GrantsToOrgOutsideUSGrp/PurposeOfGrantTxt | 0 | STUDENT CHAPTER COMPETITION PRIZE |
| IRS990ScheduleF/GrantsToOrgOutsideUSGrp/RegionTxt | 0 | NORTH AMERICA |
| IRS990ScheduleF/InterestInForeignTrustInd | 0 | 0 |
| IRS990ScheduleF/PassiveForeignInvestmestCoInd | 0 | 0 |
| IRS990ScheduleF/SubtotalEmployeesCnt | 0 | 0 |
| IRS990ScheduleF/SubtotalOfficesCnt | 0 | 0 |
| IRS990ScheduleF/SubtotalSpentAmt | 0 | 0 |
| IRS990ScheduleF/Total501c3OrgCnt | 0 | 0 |
| IRS990ScheduleF/TotalEmployeeCnt | 0 | 0 |
| IRS990ScheduleF/TotalOfficeCnt | 0 | 0 |
| IRS990ScheduleF/TotalOtherOrgCnt | 0 | 1 |
| IRS990ScheduleF/TotalSpentAmt | 0 | 0 |
| IRS990ScheduleF/TransferToForeignCorpInd | 0 | 1 |
| IRS990ScheduleI/GrantRecordsMaintainedInd | 0 | 1 |
| IRS990ScheduleI/GrantsOtherAsstToIndivInUSGrp/CashGrantAmt | 0 | 490500 |
| IRS990ScheduleI/GrantsOtherAsstToIndivInUSGrp/CashGrantAmt | 1 | 45000 |
| IRS990ScheduleI/GrantsOtherAsstToIndivInUSGrp/CashGrantAmt | 2 | 30000 |
| IRS990ScheduleI/GrantsOtherAsstToIndivInUSGrp/CashGrantAmt | 3 | 9000 |
| IRS990ScheduleI/GrantsOtherAsstToIndivInUSGrp/CashGrantAmt | 4 | 5000 |
| IRS990ScheduleI/GrantsOtherAsstToIndivInUSGrp/CashGrantAmt | 5 | 3000 |
| IRS990ScheduleI/GrantsOtherAsstToIndivInUSGrp/CashGrantAmt | 6 | 2500 |