Liabilities / Assets
29th percentile
Tied with the lowest-debt nonprofits in its peer group.
990PF • Fiscal year 2019 • EIN 80-0638652
Precomputed percentiles for this filing year versus similar nonprofits in the same peer cohort.
Liabilities / Assets
29th percentile
Tied with the lowest-debt nonprofits in its peer group.
Liabilities / Revenue
29th percentile
Tied with the lowest-debt nonprofits in its peer group.
Net Margin
96th percentile
Higher net margin than 96% of similar nonprofits.
Top Officer Pay
43rd percentile
Higher top officer pay than 43% of similar nonprofits.
Top officer pay equals 0.0% of source-year revenue.
Asset Growth
100th percentile
Faster asset growth than 100% of similar nonprofits.
Revenue Growth
99th percentile
Faster revenue growth than 99% of similar nonprofits.
Assets
Up$1,888,729
Up $1,816,066 (+2499%) from 2018
Net Assets
Up$1,888,729
Up $1,816,066 (+2499%) from 2018
Liabilities
Flat$0
Flat from 2018
Revenue
Up$2,275,994
Up $2,061,490 (+961%) from 2018
Expenses
Up$459,928
Up $314,992 (+217%) from 2018
Net Income
Up$1,816,066
Up $1,746,498 (+2510%) from 2018
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| DAVID G MUGAR | Grantor And Trustee | - | $0 | - | - |
| DAVID T TING | Invest. Committee Trustee | - | $0 | - | - |
| ALAN W ROTTENBERG | Invest. Committee Trustee | - | $0 | - | - |
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990PF/AnalysisIncomeProducingActyGrp/IntOnSavAndTempCashInvstGrp/ExclusionAmt | 0 | 188 |
| IRS990PF/AnalysisIncomeProducingActyGrp/IntOnSavAndTempCashInvstGrp/ExclusionCd | 0 | 14 |
| IRS990PF/AnalysisIncomeProducingActyGrp/SubtotalsIncmProducingActyGrp/ExclusionAmt | 0 | 188 |
| IRS990PF/AnalysisIncomeProducingActyGrp/SubtotalsIncmProducingActyGrp/RelatedOrExemptFunctionIncmAmt | 0 | 0 |
| IRS990PF/AnalysisIncomeProducingActyGrp/SubtotalsIncmProducingActyGrp/UnrelatedBusinessTaxblIncmAmt | 0 | 0 |
| IRS990PF/AnalysisIncomeProducingActyGrp/TotalIncomeProducingActyAmt | 0 | 188 |
| IRS990PF/AnalysisOfRevenueAndExpenses/CapGainNetIncmNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/CompOfcrDirTrstDsbrsChrtblAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/CompOfcrDirTrstNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/CompOfcrDirTrstRevAndExpnssAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/ContriPaidDsbrsChrtblAmt | 0 | 459858 |
| IRS990PF/AnalysisOfRevenueAndExpenses/ContriPaidRevAndExpnssAmt | 0 | 459858 |
| IRS990PF/AnalysisOfRevenueAndExpenses/ContriRcvdRevAndExpnssAmt | 0 | 2275806 |
| IRS990PF/AnalysisOfRevenueAndExpenses/ExcessRevenueOverExpensesAmt | 0 | 1816066 |
| IRS990PF/AnalysisOfRevenueAndExpenses/InterestOnSavNetInvstIncmAmt | 0 | 188 |
| IRS990PF/AnalysisOfRevenueAndExpenses/InterestOnSavRevAndExpnssAmt | 0 | 188 |
| IRS990PF/AnalysisOfRevenueAndExpenses/NetInvestmentIncomeAmt | 0 | 188 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherExpensesDsbrsChrtblAmt | 0 | 70 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherExpensesNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherExpensesRevAndExpnssAmt | 0 | 70 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalExpensesDsbrsChrtblAmt | 0 | 459928 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalExpensesNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalExpensesRevAndExpnssAmt | 0 | 459928 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalNetInvstIncmAmt | 0 | 188 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalRevAndExpnssAmt | 0 | 2275994 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotOprExpensesDsbrsChrtblAmt | 0 | 70 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotOprExpensesNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotOprExpensesRevAndExpnssAmt | 0 | 70 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/ExcessRevenueOverExpensesAmt | 0 | 1816066 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/OtherDecreasesAmt | 0 | 0 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/OtherIncreasesAmt | 0 | 0 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/SubtotalAmt | 0 | 1888729 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/TotNetAstOrFundBalancesBOYAmt | 0 | 72663 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/TotNetAstOrFundBalancesEOYAmt | 0 | 1888729 |
| IRS990PF/DistributableAmountGrp/DeductionFromDistributableAmt | 0 | 0 |
| IRS990PF/DistributableAmountGrp/DistributableAsAdjustedAmt | 0 | 41289 |
| IRS990PF/DistributableAmountGrp/DistributableBeforeAdjAmt | 0 | 41289 |
| IRS990PF/DistributableAmountGrp/DistributableBeforeDedAmt | 0 | 41289 |
| IRS990PF/DistributableAmountGrp/MinimumInvestmentReturnAmt | 0 | 41293 |
| IRS990PF/DistributableAmountGrp/RecoveriesQualfiedDistriAmt | 0 | 0 |
| IRS990PF/DistributableAmountGrp/TaxBasedOnInvestmentIncomeAmt | 0 | 4 |
| IRS990PF/DistributableAmountGrp/TotalTaxAmt | 0 | 4 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/BackupWithholdingWithheldAmt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/EsPenaltyAmt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/EstimatedPlusOvpmtIncmTxAmt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/ExtsnRequestIncomeTaxPaidAmt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/InvestmentIncomeExciseTaxAmt | 0 | 4 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/SubtitleATaxAmt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/SubtotalAmt | 0 | 4 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/TaxBasedOnInvestmentIncomeAmt | 0 | 4 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/TaxDueAmt | 0 | 4 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/TaxUnderSection511Amt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/TotalPaymentsAndCreditsAmt | 0 | 0 |
| IRS990PF/FMVAssetsEOYAmt | 0 | 1888729 |
| IRS990PF/Form990PFBalanceSheetsGrp/AdditionalPaidInCapitalBOYAmt | 0 | 0 |
| IRS990PF/Form990PFBalanceSheetsGrp/AdditionalPaidInCapitalEOYAmt | 0 | 0 |
| IRS990PF/Form990PFBalanceSheetsGrp/CapitalStockBOYAmt | 0 | 0 |
| IRS990PF/Form990PFBalanceSheetsGrp/CapitalStockEOYAmt | 0 | 0 |
| IRS990PF/Form990PFBalanceSheetsGrp/OrgDoesNotFollowFASB117Ind | 0 | X |
| IRS990PF/Form990PFBalanceSheetsGrp/RetainedEarningBOYAmt | 0 | 72663 |
| IRS990PF/Form990PFBalanceSheetsGrp/RetainedEarningEOYAmt | 0 | 1888729 |
| IRS990PF/Form990PFBalanceSheetsGrp/SavAndTempCashInvstBOYAmt | 0 | 72663 |
| IRS990PF/Form990PFBalanceSheetsGrp/SavAndTempCashInvstEOYAmt | 0 | 1888729 |
| IRS990PF/Form990PFBalanceSheetsGrp/SavAndTempCashInvstEOYFMVAmt | 0 | 1888729 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalAssetsBOYAmt | 0 | 72663 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalAssetsEOYAmt | 0 | 1888729 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalAssetsEOYFMVAmt | 0 | 1888729 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalLiabilitiesBOYAmt | 0 | 0 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalLiabilitiesEOYAmt | 0 | 0 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalLiabilitiesNetAstBOYAmt | 0 | 72663 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalLiabilitiesNetAstEOYAmt | 0 | 1888729 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotNetAstOrFundBalancesBOYAmt | 0 | 72663 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotNetAstOrFundBalancesEOYAmt | 0 | 1888729 |
| IRS990PF/MethodOfAccountingCashInd | 0 | X |
| IRS990PF/MinimumInvestmentReturnGrp/AcquisitionIndebtednessAmt | 0 | 0 |
| IRS990PF/MinimumInvestmentReturnGrp/AdjustedTotalFMVOfUnusedAstAmt | 0 | 838443 |
| IRS990PF/MinimumInvestmentReturnGrp/AverageMonthlyCashBalancesAmt | 0 | 838443 |
| IRS990PF/MinimumInvestmentReturnGrp/AverageMonthlyFMVOfSecAmt | 0 | 0 |
| IRS990PF/MinimumInvestmentReturnGrp/CashDeemedCharitableAmt | 0 | 12577 |
| IRS990PF/MinimumInvestmentReturnGrp/FMVAllOtherNoncharitableAstAmt | 0 | 0 |
| IRS990PF/MinimumInvestmentReturnGrp/MinimumInvestmentReturnAmt | 0 | 41293 |
| IRS990PF/MinimumInvestmentReturnGrp/NetVlNoncharitableAssetsAmt | 0 | 825866 |
| IRS990PF/MinimumInvestmentReturnGrp/ReductionClaimedAmt | 0 | 0 |
| IRS990PF/MinimumInvestmentReturnGrp/TotalFMVOfUnusedAssetsAmt | 0 | 838443 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompOfHghstPdCntrctOrNONETxt | 0 | NONE |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompOfHghstPdEmplOrNONETxt | 0 | NONE |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/ContractorPaidOver50kCnt | 0 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/AverageHrsPerWkDevotedToPosRt | 0 | 0.10 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/AverageHrsPerWkDevotedToPosRt | 1 | 0.10 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/AverageHrsPerWkDevotedToPosRt | 2 | 0.10 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/CompensationAmt | 0 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/CompensationAmt | 1 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/CompensationAmt | 2 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/EmployeeBenefitProgramAmt | 0 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/EmployeeBenefitProgramAmt | 1 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/EmployeeBenefitProgramAmt | 2 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/ExpenseAccountOtherAllwncAmt | 0 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/ExpenseAccountOtherAllwncAmt | 1 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/ExpenseAccountOtherAllwncAmt | 2 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/PersonNm | 0 | DAVID G MUGAR |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/PersonNm | 1 | DAVID T TING |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/PersonNm | 2 | ALAN W ROTTENBERG |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/TitleTxt | 0 | GRANTOR AND TRUSTEE |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/TitleTxt | 1 | INVEST. COMMITTEE TRUSTEE |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/TitleTxt | 2 | INVEST. COMMITTEE TRUSTEE |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/AddressLine1Txt | 0 | 222 BERKELEY STREET SUITE 1325 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/AddressLine1Txt | 1 | 222 BERKELEY STREET SUITE 1325 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/AddressLine1Txt | 2 | 400 ATLANTIC AVE |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/CityNm | 0 | BOSTON |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/CityNm | 1 | BOSTON |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/CityNm | 2 | BOSTON |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/StateAbbreviationCd | 1 | MA |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/StateAbbreviationCd | 2 | MA |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/ZIPCd | 0 | 02116 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/ZIPCd | 1 | 02116 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/ZIPCd | 2 | 02110 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OtherEmployeePaidOver50kCnt | 0 | 0 |
| IRS990PF/Organization501c3ExemptPFInd | 0 | X |
| IRS990PF/QlfyUndSect4940eReducedTaxGrp/AdjNetVlNoncharitableAssetsAmt | 0 | 13486293 |
| IRS990PF/QlfyUndSect4940eReducedTaxGrp/AdjNonchrtblNetInvstIncmPctAmt | 0 | 13486295 |
| IRS990PF/QlfyUndSect4940eReducedTaxGrp/AdjustedQlfyDistriYr1Amt | 0 | 144936 |
| IRS990PF/QlfyUndSect4940eReducedTaxGrp/AdjustedQlfyDistriYr2Amt | 0 | 131005 |
| IRS990PF/QlfyUndSect4940eReducedTaxGrp/AdjustedQlfyDistriYr3Amt | 0 | 43668 |
| IRS990PF/QlfyUndSect4940eReducedTaxGrp/AdjustedQlfyDistriYr4Amt | 0 | 33343 |
| IRS990PF/QlfyUndSect4940eReducedTaxGrp/AdjustedQlfyDistriYr5Amt | 0 | 108597 |
| IRS990PF/QlfyUndSect4940eReducedTaxGrp/AverageDistributionRt | 0 | 16.329880 |
| IRS990PF/QlfyUndSect4940eReducedTaxGrp/DistributionYr1Rt | 0 | 6.191994 |
| IRS990PF/QlfyUndSect4940eReducedTaxGrp/DistributionYr2Rt | 0 | 34.204961 |
| IRS990PF/QlfyUndSect4940eReducedTaxGrp/DistributionYr3Rt | 0 | 13.710518 |
| IRS990PF/QlfyUndSect4940eReducedTaxGrp/DistributionYr4Rt | 0 | 9.213319 |
| IRS990PF/QlfyUndSect4940eReducedTaxGrp/DistributionYr5Rt | 0 | 18.328608 |
| IRS990PF/QlfyUndSect4940eReducedTaxGrp/LiableSection4942TaxInd | 0 | 0 |
| IRS990PF/QlfyUndSect4940eReducedTaxGrp/NetInvestmentIncomePctAmt | 0 | 2 |
| IRS990PF/QlfyUndSect4940eReducedTaxGrp/NetVlNoncharitableAssetsAmt | 0 | 825866 |
| IRS990PF/QlfyUndSect4940eReducedTaxGrp/NetVlNoncharitableAssetsYr1Amt | 0 | 23407 |
| IRS990PF/QlfyUndSect4940eReducedTaxGrp/NetVlNoncharitableAssetsYr2Amt | 0 | 3830 |
| IRS990PF/QlfyUndSect4940eReducedTaxGrp/NetVlNoncharitableAssetsYr3Amt | 0 | 3185 |
| IRS990PF/QlfyUndSect4940eReducedTaxGrp/NetVlNoncharitableAssetsYr4Amt | 0 | 3619 |
| IRS990PF/QlfyUndSect4940eReducedTaxGrp/NetVlNoncharitableAssetsYr5Amt | 0 | 5925 |
| IRS990PF/QlfyUndSect4940eReducedTaxGrp/QualifyingDistributionsAmt | 0 | 459928 |
| IRS990PF/QlfyUndSect4940eReducedTaxGrp/TotalDistributionRt | 0 | 81.649400 |
| IRS990PF/QualifyingDistriPartXIIGrp/AdjustedQualifyingDistriAmt | 0 | 459928 |
| IRS990PF/QualifyingDistriPartXIIGrp/ExpensesAndContributionsAmt | 0 | 459928 |
| IRS990PF/QualifyingDistriPartXIIGrp/PctSect4940eOrgNetInvstIncmAmt | 0 | 0 |
| IRS990PF/QualifyingDistriPartXIIGrp/ProgramRelatedInvstTotalAmt | 0 | 0 |
| IRS990PF/QualifyingDistriPartXIIGrp/QualifyingDistributionsAmt | 0 | 459928 |
| IRS990PF/StatementsRegardingActy4720Grp/BrrwOrLendDisqualifiedPrsnInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/BusinessHoldingsInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/FurnGoodsDisqualifiedPrsnInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/GrantsToIndividualsInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/GrantsToOrganizationsInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/InfluenceElectionInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/InfluenceLegislationInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/JeopardyInvestmentsInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/NoncharitablePurposeInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/PayCompDisqualifiedPrsnInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/PaymentToGovernmentOfficialInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/SaleOrExchDisqualifiedPrsnInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/SubjToTaxRmnrtnExPrchtPymtInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/TransferAstDisqualifiedPrsnInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/UncorrectedPriorActsInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/UncorrectedPYJeopardyInvstInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/UndistributedIncomePYInd | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/ActivitiesNotPreviouslyRptInd | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/AtLeast5000InAssetsInd | 0 | 1 |
| IRS990PF/StatementsRegardingActyGrp/ChangesToArticlesOrBylawsInd | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/ComplyWithPublicInspRqrInd | 0 | 1 |
| IRS990PF/StatementsRegardingActyGrp/DonorAdvisedFundInd | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/ForeignAccountsQuestionInd | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/Form1120POLFiledInd | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/Form990PFFiledWithAttyGenInd | 0 | 1 |
| IRS990PF/StatementsRegardingActyGrp/LegislativePoliticalActyInd | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/AddressLine1Txt | 0 | 222 BERKELEY ST NO 1325 |
| IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/CityNm | 0 | BOSTON |
| IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/StateAbbreviationCd | 0 | MA |
| IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/ZIPCd | 0 | 02116 |
| IRS990PF/StatementsRegardingActyGrp/MoreThan100SpentInd | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/NewSubstantialContributorsInd | 0 | 1 |
| IRS990PF/StatementsRegardingActyGrp/OrganizationDissolvedEtcInd | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/OrgReportOrRegisterStateCd | 0 | MA |
| IRS990PF/StatementsRegardingActyGrp/OwnControlledEntityInd | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/PersonsWithBooksName/BusinessNameLine1Txt | 0 | THE MUGAR FOUNDATION |
| IRS990PF/StatementsRegardingActyGrp/PhoneNum | 0 | 6172673000 |
| IRS990PF/StatementsRegardingActyGrp/PrivateOperatingFoundationInd | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/Section4955ManagersTaxAmt | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/Section4955OrganizationTaxAmt | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/Section508eRqrSatisfiedInd | 0 | 1 |
| IRS990PF/StatementsRegardingActyGrp/TaxReimbursedAmt | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/UnrelatedBusIncmOverLimitInd | 0 | 0 |
| IRS990PF/StatementsRegardingActyGrp/WebsiteAddressTxt | 0 | N/A |
| IRS990PF/SumOfProgramRelatedInvstGrp/TotalAmt | 0 | 0 |
| IRS990PF/SupplementaryInformationGrp/ApplicationSubmissionInfoGrp/FormAndInfoAndMaterialsTxt | 0 | NO SPECIAL FORM |
| IRS990PF/SupplementaryInformationGrp/ApplicationSubmissionInfoGrp/RecipientPersonNm | 0 | THE MUGAR FOUNDATION CO MUGAR ENTER |
| IRS990PF/SupplementaryInformationGrp/ApplicationSubmissionInfoGrp/RecipientPhoneNum | 0 | 6172673000 |
| IRS990PF/SupplementaryInformationGrp/ApplicationSubmissionInfoGrp/RecipientUSAddress/AddressLine1Txt | 0 | 222 BERKELEY STREET STE 1325 |
| IRS990PF/SupplementaryInformationGrp/ApplicationSubmissionInfoGrp/RecipientUSAddress/CityNm | 0 | BOSTON |
| IRS990PF/SupplementaryInformationGrp/ApplicationSubmissionInfoGrp/RecipientUSAddress/StateAbbreviationCd | 0 | MA |
| IRS990PF/SupplementaryInformationGrp/ApplicationSubmissionInfoGrp/RecipientUSAddress/ZIPCd | 0 | 02116 |
| IRS990PF/SupplementaryInformationGrp/ApplicationSubmissionInfoGrp/RestrictionsOnAwardsTxt | 0 | NONE |
| IRS990PF/SupplementaryInformationGrp/ApplicationSubmissionInfoGrp/SubmissionDeadlinesTxt | 0 | NONE |
| IRS990PF/SupplementaryInformationGrp/ContributingManagerNm | 0 | DAVID G MUGAR |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 0 | 200000 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 1 | 111508 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 2 | 27500 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 3 | 850 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 4 | 10000 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 5 | 10000 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 6 | 100000 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 0 | DONATION TO SUPPORT THE LOWER SCHOOL PLAYGROUND CAPITAL FUND, USED FOR A NEW PLAYGROUND TO BE INSTALLED IN THE BACK OF THE MCCOY BUILDING. |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 1 | DONATION TO SUPPORT BOSTON'S 2019 FOURTH OF JULY CELEBRATION. |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 2 | DONATION TO FUND THE FAMILY FIREWORKS DISPLAY OVER BOSTON COMMON ON DECEMBER 31, 2018. |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 3 | DONATION TO MAKE THE COMMUNITY BETTER, IN ADDTION TO CONNECTING VOLUNTEERS AND DONORS TO CAUSES THEY ARE PASSIONATE ABOUT. |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 4 | DONATION TO SUPPORT THE FARM AID NETWORK OF FARM ADVOCATES, FIGHTING FOR POLICIES THAT SUPPORT FARMERS AND RURAL COMMUNITIES. |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 5 | DONATION TO SUPPORT AREMENIA'S FORESTS AND PEOPLE. |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 6 | DONATION TO FUND THE MUGAR FAMILY FELLOWSHIP IN LUNG CANCER UNDER THE DIRECTION OF PASI JANNE, MD. |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 0 | BRIMMER AND MAY SCHOOL |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 1 | BOSTON 4 CELEBRATIONS FOUNDATION INC |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 2 | FIRST NIGHT BOSTON |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 3 | ST JOHN COMMUNITY FOUNDATION |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 4 | FARM AID |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 5 | ARMENIA TREE PROJECT |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 6 | DANA-FARBER CANCER INSTITUTE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 0 | 501(C)3 PUBLIC CHARI |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 1 | 501(C)3 PUBLIC CHARI |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 2 | 501(C)3 PUBLIC CHARI |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 3 | 501(C)3 PUBLIC CHARI |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 4 | 501(C)3 PUBLIC CHARI |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 5 | 501(C)3 PUBLIC CHARI |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 6 | 501(C)3 PUBLIC CHARI |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 0 | 69 MIDDLESEX ROAD |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 1 | 222 BERKELEY STREET SUITE 1325 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 2 | ONE DESIGN CENTER PLACE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 3 | PO BOX 1020 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 4 | 501 CAMBRIDGE STREET 3RD FLOOR |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 5 | 400 W CUMMINGS PARK SUITE 3900 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 6 | 10 BROOKLINE PLACE WEST 6TH FLOOR |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 0 | CHESTNUT HILL |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 1 | BOSTON |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 2 | BOSTON |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 3 | ST JOHN |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 4 | CAMBRIDGE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 5 | WOBURN |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 6 | BROOKLINE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 0 | MA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 1 | MA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 2 | MA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 3 | VI |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 4 | MA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 5 | MA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 6 | MA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 0 | 02467 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 1 | 02116 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 2 | 02210 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 3 | 00831 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 4 | 02141 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 5 | 01801 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 6 | 024457226 |
| IRS990PF/SupplementaryInformationGrp/TotalGrantOrContriApprvFutAmt | 0 | 0 |
| IRS990PF/SupplementaryInformationGrp/TotalGrantOrContriPdDurYrAmt | 0 | 459858 |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/LoansOrLoanGuaranteesInd | 0 | 0 |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/PerformanceOfServicesEtcInd | 0 | 0 |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/PurchaseOfAssetsNonchrtblEOInd | 0 | 0 |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/ReimbursementArrangementsInd | 0 | 0 |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/RelationshipsNonchrtblEOInd | 0 | 0 |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/RentalOfFacilitiesOthAssetsInd | 0 | 0 |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/SalesOrExchangesOfAssetsInd | 0 | 0 |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/SharingOfFacilitiesEtcInd | 0 | 0 |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/TrnsfrOfCashToNonchrtblEOInd | 0 | 0 |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/TrnsfrOtherAssetNonchrtblEOInd | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/AppliedToCurrentYearAmt | 0 | 41289 |
| IRS990PF/UndistributedIncomeGrp/AppliedToPriorYearsAmt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/AppliedToYear1Amt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/CorpusDistri170b1EOr4942g3Amt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/DistributableAsAdjustedAmt | 0 | 41289 |
| IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovAppCYAmt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr1Amt | 0 | 143766 |
| IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr2Amt | 0 | 130813 |
| IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr3Amt | 0 | 43509 |
| IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr4Amt | 0 | 33162 |
| IRS990PF/UndistributedIncomeGrp/ExcessDistributionCyovYr5Amt | 0 | 108301 |
| IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovAppCYCorpusAmt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovFromYr5Amt | 0 | 108301 |
| IRS990PF/UndistributedIncomeGrp/ExcessDistriCyovToNextYrAmt | 0 | 769889 |
| IRS990PF/UndistributedIncomeGrp/ExcessFromCurrentYearAmt | 0 | 418639 |
| IRS990PF/UndistributedIncomeGrp/ExcessFromYear1Amt | 0 | 143766 |
| IRS990PF/UndistributedIncomeGrp/ExcessFromYear2Amt | 0 | 130813 |
| IRS990PF/UndistributedIncomeGrp/ExcessFromYear3Amt | 0 | 43509 |
| IRS990PF/UndistributedIncomeGrp/ExcessFromYear4Amt | 0 | 33162 |
| IRS990PF/UndistributedIncomeGrp/PriorYearDeficiencyOrTaxAmt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/PriorYearUndistributedIncmAmt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/QualifyingDistributionsAmt | 0 | 459928 |
| IRS990PF/UndistributedIncomeGrp/RemainingDistriFromCorpusAmt | 0 | 418639 |
| IRS990PF/UndistributedIncomeGrp/Taxable1Amt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/Taxable2Amt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/TotalCorpusAmt | 0 | 878190 |
| IRS990PF/UndistributedIncomeGrp/TotalExcessDistributionCyovAmt | 0 | 459551 |
| IRS990PF/UndistributedIncomeGrp/TotalForPriorYearsAmt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/TreatedAsDistriFromCorpusAmt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/UndistributedIncomeCYAmt | 0 | 0 |
| IRS990PF/UndistributedIncomeGrp/UndistributedIncomePYAmt | 0 | 0 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1Txt | 0 | MUGAR 4 HARTWELL LLC |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1Txt | 1 | MUGAR 101 HARTWELL LLC |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1Txt | 2 | MUGAR 113 HARTWELL LLC |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1Txt | 3 | MUGAR 115 HARTWELL LLC |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 0 | 1 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 1 | 2 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 2 | 3 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 3 | 4 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 4 | 5 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorPersonNm | 0 | DAVID G MUGAR |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1Txt | 0 | 222 BERKELEY STREET SUITE 1325 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1Txt | 1 | 222 BERKELEY STREET SUITE 1325 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1Txt | 2 | 222 BERKELEY STREET SUITE 1325 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1Txt | 3 | 222 BERKELEY STREET SUITE 1325 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1Txt | 4 | 222 BERKELEY STREET SUITE 1325 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/CityNm | 0 | BOSTON |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/CityNm | 1 | BOSTON |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/CityNm | 2 | BOSTON |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/CityNm | 3 | BOSTON |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/CityNm | 4 | BOSTON |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/StateAbbreviationCd | 0 | MA |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/StateAbbreviationCd | 1 | MA |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/StateAbbreviationCd | 2 | MA |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/StateAbbreviationCd | 3 | MA |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/StateAbbreviationCd | 4 | MA |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCd | 0 | 02116 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCd | 1 | 02116 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCd | 2 | 02116 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCd | 3 | 02116 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCd | 4 | 02116 |
| IRS990ScheduleB/ContributorInformationGrp/PersonContributionInd | 0 | X |
| IRS990ScheduleB/ContributorInformationGrp/PersonContributionInd | 1 | X |
| IRS990ScheduleB/ContributorInformationGrp/PersonContributionInd | 2 | X |
| IRS990ScheduleB/ContributorInformationGrp/PersonContributionInd | 3 | X |
| IRS990ScheduleB/ContributorInformationGrp/PersonContributionInd | 4 | X |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 0 | 80000 |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 1 | 207860 |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 2 | 117809 |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 3 | 1158437 |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 4 | 711700 |
| IRS990ScheduleB/GeneralRuleInd | 0 | X |
| IRS990ScheduleB/Organization501c3ExemptPFInd | 0 | X |
| OtherExpensesSchedule/OtherExpensesScheduleGrp/Desc | 0 | STATE FILING FEES |
| OtherExpensesSchedule/OtherExpensesScheduleGrp/DisbursementsCharitablePrpsAmt | 0 | 70 |
| OtherExpensesSchedule/OtherExpensesScheduleGrp/NetInvestmentIncomeAmt | 0 | 0 |
| OtherExpensesSchedule/OtherExpensesScheduleGrp/RevenueAndExpensesPerBooksAmt | 0 | 70 |
| SubstantialContributorsSch/SubstantialContributorDetail/BusinessName/BusinessNameLine1Txt | 0 | MUGAR 4 HARTWELL LLC |
| SubstantialContributorsSch/SubstantialContributorDetail/BusinessName/BusinessNameLine1Txt | 1 | MUGAR 101 HARTWELL LLC |
| SubstantialContributorsSch/SubstantialContributorDetail/BusinessName/BusinessNameLine1Txt | 2 | MUGAR 113 HARTWELL LLC |
| SubstantialContributorsSch/SubstantialContributorDetail/BusinessName/BusinessNameLine1Txt | 3 | MUGAR 115 HARTWELL LLC |
| SubstantialContributorsSch/SubstantialContributorDetail/PersonNm | 0 | DAVID G MUGAR |
| SubstantialContributorsSch/SubstantialContributorDetail/USAddress/AddressLine1Txt | 0 | 222 BERKELEY ST STE 1325 |
| SubstantialContributorsSch/SubstantialContributorDetail/USAddress/AddressLine1Txt | 1 | 222 BERKELEY ST STE 1325 |
| SubstantialContributorsSch/SubstantialContributorDetail/USAddress/AddressLine1Txt | 2 | 222 BERKELEY ST STE 1325 |
| SubstantialContributorsSch/SubstantialContributorDetail/USAddress/AddressLine1Txt | 3 | 222 BERKELEY ST STE 1325 |
| SubstantialContributorsSch/SubstantialContributorDetail/USAddress/AddressLine1Txt | 4 | 222 BERKELEY ST STE 1325 |
| SubstantialContributorsSch/SubstantialContributorDetail/USAddress/CityNm | 0 | BOSTON |
| SubstantialContributorsSch/SubstantialContributorDetail/USAddress/CityNm | 1 | BOSTON |
| SubstantialContributorsSch/SubstantialContributorDetail/USAddress/CityNm | 2 | BOSTON |
| SubstantialContributorsSch/SubstantialContributorDetail/USAddress/CityNm | 3 | BOSTON |
| SubstantialContributorsSch/SubstantialContributorDetail/USAddress/CityNm | 4 | BOSTON |
| SubstantialContributorsSch/SubstantialContributorDetail/USAddress/StateAbbreviationCd | 0 | MA |
| SubstantialContributorsSch/SubstantialContributorDetail/USAddress/StateAbbreviationCd | 1 | MA |
| SubstantialContributorsSch/SubstantialContributorDetail/USAddress/StateAbbreviationCd | 2 | MA |
| SubstantialContributorsSch/SubstantialContributorDetail/USAddress/StateAbbreviationCd | 3 | MA |
| SubstantialContributorsSch/SubstantialContributorDetail/USAddress/StateAbbreviationCd | 4 | MA |
| SubstantialContributorsSch/SubstantialContributorDetail/USAddress/ZIPCd | 0 | 02116 |
| SubstantialContributorsSch/SubstantialContributorDetail/USAddress/ZIPCd | 1 | 02116 |
| SubstantialContributorsSch/SubstantialContributorDetail/USAddress/ZIPCd | 2 | 02116 |
| SubstantialContributorsSch/SubstantialContributorDetail/USAddress/ZIPCd | 3 | 02116 |
| SubstantialContributorsSch/SubstantialContributorDetail/USAddress/ZIPCd | 4 | 02116 |
| ReturnHeader/BuildTS | 0 | 2021-04-22 16:20:28Z |
| ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd | 0 | 1 |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | DAVID T TING |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | TRUSTEE |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 6172673000 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2020-11-06 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | THE MUGAR FOUNDATION |
| ReturnHeader/Filer/BusinessName/BusinessNameLine2Txt | 0 | C/O MUGAR ENTERPRISES |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | MUGA |
| ReturnHeader/Filer/EIN | 0 | 800638652 |
| ReturnHeader/Filer/PhoneNum | 0 | 6172673000 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | 222 BERKELEY ST NO 1325 |
| ReturnHeader/Filer/USAddress/CityNm | 0 | BOSTON |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | MA |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 02116 |
| ReturnHeader/FilingSecurityInformation/AtSubmissionCreationDeviceId | 0 | D30CC18F8A276BCFF094CFCCD7E02577EEED7E7D |
| ReturnHeader/FilingSecurityInformation/AtSubmissionFilingDeviceId | 0 | 5DFD47D5938E4F0EB6558E32278CFF63090FCAA6 |
| ReturnHeader/FilingSecurityInformation/FilingLicenseTypeCd | 0 | P |
| ReturnHeader/FilingSecurityInformation/IPAddress/IPv4AddressTxt | 0 | 69.147.160.242 |
| ReturnHeader/FilingSecurityInformation/IPDt | 0 | 2020-11-06 |
| ReturnHeader/FilingSecurityInformation/IPTimezoneCd | 0 | ES |
| ReturnHeader/FilingSecurityInformation/IPTm | 0 | 09:48:19 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 043236498 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | WALTER & SHUFFAIN PC |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | ONE INTERNATIONAL PLACE SUITE 1010 |
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Displayed year
2019 • Form 990PFDetailed filing. Detailed filing data is available for this year.