Liabilities / Assets
63rd percentile
Tied with the lowest-debt nonprofits in its peer group.
EIN 83-2617808 • Boston, MA
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
63rd percentile
Tied with the lowest-debt nonprofits in its peer group.
Liabilities / Revenue
66th percentile
Tied with the lowest-debt nonprofits in its peer group.
Net Margin
78th percentile
Higher net margin than 78% of similar nonprofits.
Top Officer Pay
81st percentile
Higher top officer pay than 81% of similar nonprofits.
Top officer pay equals 0.0% of source-year revenue.
Asset Growth
66th percentile
Faster asset growth than 66% of similar nonprofits.
Revenue Growth
87th percentile
Faster revenue growth than 87% of similar nonprofits.
Assets
Up$427,369
Up $23,876 (+5.9%) from 2024
Liabilities
Down$0
Down $1 (-100%) from 2024
Net Assets
Up$427,369
Up $23,876 (+5.9%) from 2024
Revenue
Up$94,252
Up $38,642 (+69%) from 2024
Expenses
Up$70,565
Up $13,019 (+23%) from 2024
Net Income
Up$23,687
Up $25,623 (+1324%) from 2024
Most recent year
2025 • Form 990PFDetailed filing. Detailed filing data is available for this year.
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| FRANZ F COLLOREDO-MANSFELD | Trustee | - | $0 | - | - |
| ANNE D COLLOREDO-MANSFELD | Trustee | - | $0 | - | - |
| FRANZ JOSEF COLLOREDO-MANSFELD | 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 |
|---|---|---|
| AccountingFeesSchedule/AccountingFeesDetail/Amt | 0 | 2000 |
| AccountingFeesSchedule/AccountingFeesDetail/CategoryTxt | 0 | TAX PREPARATION FEE |
| ContractorCompensationExpln/ContractorCompExplnGrp/ContractorBusinessName/BusinessNameLine1Txt | 0 | WELCH & FORBES LLC |
| ContractorCompensationExpln/ContractorCompExplnGrp/ContractorBusinessName/BusinessNameLine1Txt | 1 | WELCH & FORBES LLC |
| ContractorCompensationExpln/ContractorCompExplnGrp/ExplanationTxt | 0 | TAX AND ACCOUNTING |
| ContractorCompensationExpln/ContractorCompExplnGrp/ExplanationTxt | 1 | INVESTMENT MANAGEMENT |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 0 | 56 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 1 | 4491 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 2 | 2569 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 3 | 4666 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 4 | 1287 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 5 | 495 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 6 | 6655 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 7 | 64554 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 8 | 1478 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 9 | 966 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 10 | 10469 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 11 | 9460 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 12 | 9384 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 13 | 10944 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 14 | 9725 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 15 | 9803 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 16 | 9740 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 17 | 9976 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 18 | 10141 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 19 | 9233 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 20 | 9760 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 21 | 10227 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 22 | 9942 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 23 | 9731 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 24 | 9429 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 25 | 9672 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 26 | 21886 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 27 | 9786 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 28 | 9383 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 29 | 9842 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 30 | 9509 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 31 | 9887 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 32 | 11690 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 33 | 9357 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 34 | 9176 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 35 | 9496 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 36 | 14538 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 37 | 9352 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 38 | 9702 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 39 | 10159 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 40 | 8795 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 41 | 1472 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYBookValueAmt | 42 | 4099 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 0 | 16698 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 1 | 44598 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 2 | 14503 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 3 | 72813 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 4 | 15192 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 5 | 12254 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 6 | 26400 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 7 | 197955 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 8 | 23785 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 9 | 33154 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 10 | 24199 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 11 | 20501 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 12 | 14732 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 13 | 34187 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 14 | 19669 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 15 | 13272 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 16 | 10044 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 17 | 19318 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 18 | 17968 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 19 | 12711 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 20 | 17219 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 21 | 12085 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 22 | 31710 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 23 | 13648 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 24 | 14257 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 25 | 11579 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 26 | 100425 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 27 | 13023 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 28 | 16434 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 29 | 13281 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 30 | 21041 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 31 | 13898 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 32 | 25081 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 33 | 8712 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 34 | 3777 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 35 | 11983 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 36 | 102699 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 37 | 13939 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 38 | 10890 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 39 | 11089 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 40 | 47267 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 41 | 27338 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/EOYFMVAmt | 42 | 14031 |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 0 | ABBOTT LABORATORIES |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 1 | AUTOMATIC DATA PROCESSING INC |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 2 | CARMAX INC |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 3 | COSTCO WHOLESALE CORP NEW |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 4 | DANAHER CORP |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 5 | ILLINOIS TOOL WORKS INC |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 6 | JP MORGAN CHASE & CO COM |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 7 | MICROSOFT CORP |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 8 | PROCTER & GAMBLE CO |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 9 | VERTEX PHARMACEUTICALS INC |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 10 | ALPHABET INC CAP STK CL C |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 11 | AMAZON COM INC |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 12 | HOME DEPOT INC |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 13 | O REILLY AUTOMOTIVE INC |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 14 | TJX COS INC NEW |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 15 | CHURCH & DWIGHT CO INC |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 16 | LANCASTER COLONY CORP |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 17 | CHUBB LIMITED COM |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 18 | IDEXX LABORATORIES INC |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 19 | METTLER TOLEDO INTERNATIONAL I |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 20 | STRYKER CORP |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 21 | THERMO FISHER SCIENTIFIC INC |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 22 | CINTAS CORP |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 23 | RAYTHEON TECHNOLOGIES CORP COM |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 24 | ROPER TECHNOLOGIES INC |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 25 | ADOBE SYSTEMS INC |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 26 | ANSYS INC |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 27 | APPLE INC |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 28 | FISERV INC |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 29 | VISA INC CLASS A SHARES |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 30 | ECOLAB INC |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 31 | LINDE PLC |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 32 | GALLAGHER ARTHUR J & CO |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 33 | ELI LILLY & CO |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 34 | LINCOLN ELECTRIC HOLDINGS INC |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 35 | MONGODB INC CL A |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 36 | MOODYS CORP |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 37 | NVIDIA CORP |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 38 | SHOPIFY INC CL A |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 39 | TRACTOR SUPPLY CO |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 40 | WATSCO INC |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 41 | META PLATFORMS INC CL A |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 42 | MARSH & MCLENNAN COS INC |
| InvestmentsCorpStockSchedule/InvestmentsCorporateStockGrp/StockNm | 43 | NRG ENERGY INC |
| IRS990PF/AnalysisIncomeProducingActyGrp/DividendsAndInterestFromSecDtl/ExclusionAmt | 0 | 8066 |
| IRS990PF/AnalysisIncomeProducingActyGrp/DividendsAndInterestFromSecDtl/ExclusionCd | 0 | 14 |
| IRS990PF/AnalysisIncomeProducingActyGrp/GainSalesAstOthThanInvntryGrp/ExclusionAmt | 0 | 22745 |
| IRS990PF/AnalysisIncomeProducingActyGrp/GainSalesAstOthThanInvntryGrp/ExclusionCd | 0 | 18 |
| IRS990PF/AnalysisIncomeProducingActyGrp/IntOnSavAndTempCashInvstGrp/ExclusionAmt | 0 | 622 |
| IRS990PF/AnalysisIncomeProducingActyGrp/IntOnSavAndTempCashInvstGrp/ExclusionCd | 0 | 14 |
| IRS990PF/AnalysisIncomeProducingActyGrp/SubtotalsIncmProducingActyGrp/ExclusionAmt | 0 | 31433 |
| IRS990PF/AnalysisIncomeProducingActyGrp/TotalIncomeProducingActyAmt | 0 | 31433 |
| IRS990PF/AnalysisOfRevenueAndExpenses/AccountingFeesAdjNetIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/AccountingFeesChrtblPrpsAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/AccountingFeesNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/AccountingFeesRevAndExpnssAmt | 0 | 2000 |
| IRS990PF/AnalysisOfRevenueAndExpenses/AdjustedNetIncomeAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/CapGainNetIncmNetInvstIncmAmt | 0 | 22745 |
| IRS990PF/AnalysisOfRevenueAndExpenses/ContriPaidDsbrsChrtblAmt | 0 | 55000 |
| IRS990PF/AnalysisOfRevenueAndExpenses/ContriPaidRevAndExpnssAmt | 0 | 55000 |
| IRS990PF/AnalysisOfRevenueAndExpenses/ContriRcvdRevAndExpnssAmt | 0 | 62819 |
| IRS990PF/AnalysisOfRevenueAndExpenses/DeprecAndDpltnNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/DeprecAndDpltnRevAndExpnssAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/DividendsNetInvstIncmAmt | 0 | 8066 |
| IRS990PF/AnalysisOfRevenueAndExpenses/DividendsRevAndExpnssAmt | 0 | 8066 |
| IRS990PF/AnalysisOfRevenueAndExpenses/ExcessRevenueOverExpensesAmt | 0 | 23687 |
| IRS990PF/AnalysisOfRevenueAndExpenses/GrossSalesPriceAmt | 0 | 47362 |
| IRS990PF/AnalysisOfRevenueAndExpenses/InterestDsbrsChrtblAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/InterestOnSavNetInvstIncmAmt | 0 | 622 |
| IRS990PF/AnalysisOfRevenueAndExpenses/InterestOnSavRevAndExpnssAmt | 0 | 622 |
| IRS990PF/AnalysisOfRevenueAndExpenses/LegalFeesDsbrsChrtblAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/NetGainSaleAstRevAndExpnssAmt | 0 | 22745 |
| IRS990PF/AnalysisOfRevenueAndExpenses/NetInvestmentIncomeAmt | 0 | 19131 |
| IRS990PF/AnalysisOfRevenueAndExpenses/NetSTCapitalGainAdjNetIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OthEmplSlrsWgsAdjNetIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OthEmplSlrsWgsDsbrsChrtblAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OthEmplSlrsWgsNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherExpensesRevAndExpnssAmt | 0 | 35 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherProfFeesDsbrsChrtblAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherProfFeesNetInvstIncmAmt | 0 | 12302 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherProfFeesRevAndExpnssAmt | 0 | 12302 |
| IRS990PF/AnalysisOfRevenueAndExpenses/PensionEmplBnftAdjNetIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/PensionEmplBnftNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/PrintingAndPubAdjNetIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/PrintingAndPubNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/ScheduleBNotRequiredInd | 0 | X |
| IRS990PF/AnalysisOfRevenueAndExpenses/TaxesDsbrsChrtblAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TaxesRevAndExpnssAmt | 0 | 1228 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalExpensesAdjNetIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalExpensesDsbrsChrtblAmt | 0 | 55000 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalExpensesNetInvstIncmAmt | 0 | 12302 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalExpensesRevAndExpnssAmt | 0 | 70565 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalNetInvstIncmAmt | 0 | 31433 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalRevAndExpnssAmt | 0 | 94252 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotOprExpensesAdjNetIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotOprExpensesDsbrsChrtblAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotOprExpensesNetInvstIncmAmt | 0 | 12302 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotOprExpensesRevAndExpnssAmt | 0 | 15565 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TravConfMeetingAdjNetIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TravConfMeetingNetInvstIncmAmt | 0 | 0 |
| IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/AcquiredDt | 0 | 2020-01-22 |
| IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/AcquiredDt | 1 | 2020-03-26 |
| IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/AcquiredDt | 2 | 1911-11-11 |
| IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/CostOrOtherBasisAmt | 0 | 9498 |
| IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/CostOrOtherBasisAmt | 1 | 3977 |
| IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/CostOrOtherBasisAmt | 2 | 11142 |
| IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/GainOrLossAmt | 0 | 1725 |
| IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/GainOrLossAmt | 1 | 9698 |
| IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/GainOrLossAmt | 2 | 11322 |
| IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/GainsMinusExcessOrLossesAmt | 0 | 1725 |
| IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/GainsMinusExcessOrLossesAmt | 1 | 9698 |
| IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/GainsMinusExcessOrLossesAmt | 2 | 11322 |
| IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/GrossSalesPriceAmt | 0 | 11223 |
| IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/GrossSalesPriceAmt | 1 | 13675 |
| IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/GrossSalesPriceAmt | 2 | 22464 |
| IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/PropertyDesc | 0 | 27. ADOBE SYS INC |
| IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/PropertyDesc | 1 | 65. APPLE COMPUTER INC |
| IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/PropertyDesc | 2 | 50. MICROSOFT CORP |
| IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/SoldDt | 0 | 2025-05-16 |
| IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/SoldDt | 1 | 2025-05-16 |
| IRS990PF/CapGainsLossTxInvstIncmDetail/CapGainsLossTxInvstIncmGrp/SoldDt | 2 | 2025-05-16 |
| IRS990PF/CapGainsLossTxInvstIncmDetail/CapitalGainNetIncomeAmt | 0 | 22745 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/ExcessRevenueOverExpensesAmt | 0 | 23687 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/OtherDecreasesAmt | 0 | 0 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/OtherIncreasesAmt | 0 | 189 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/SubtotalAmt | 0 | 427369 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/TotNetAstOrFundBalancesBOYAmt | 0 | 403493 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/TotNetAstOrFundBalancesEOYAmt | 0 | 427369 |
| IRS990PF/DistributableAmountGrp/DeductionFromDistributableAmt | 0 | 0 |
| IRS990PF/DistributableAmountGrp/DistributableAsAdjustedAmt | 0 | 53746 |
| IRS990PF/DistributableAmountGrp/DistributableBeforeAdjAmt | 0 | 53746 |
| IRS990PF/DistributableAmountGrp/DistributableBeforeDedAmt | 0 | 53746 |
| IRS990PF/DistributableAmountGrp/MinimumInvestmentReturnAmt | 0 | 54012 |
| IRS990PF/DistributableAmountGrp/RecoveriesQualfiedDistriAmt | 0 | 0 |
| IRS990PF/DistributableAmountGrp/TaxBasedOnInvestmentIncomeAmt | 0 | 266 |
| IRS990PF/DistributableAmountGrp/TotalTaxAmt | 0 | 266 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/AppliedToESTaxAmt | 0 | 268 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/EsPenaltyAmt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/EstimatedPlusOvpmtIncmTxAmt | 0 | 642 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/ExemptFrgnOrgTaxWthldAtSrceAmt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/ExtsnRequestIncomeTaxPaidAmt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/InvestmentIncomeExciseTaxAmt | 0 | 266 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/OverpaymentAmt | 0 | 376 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/RefundAmt | 0 | 108 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/SubtitleATaxAmt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/SubtotalAmt | 0 | 266 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/TaxBasedOnInvestmentIncomeAmt | 0 | 266 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/TaxUnderSection511Amt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/TotalPaymentsAndCreditsAmt | 0 | 642 |
| IRS990PF/FMVAssetsEOYAmt | 0 | 1213746 |
| IRS990PF/Form990PFBalanceSheetsGrp/AcctRcvblEOYAmt | 0 | 0 |
| IRS990PF/Form990PFBalanceSheetsGrp/AcctRcvblEOYFMVAmt | 0 | 0 |
| IRS990PF/Form990PFBalanceSheetsGrp/CapitalStockBOYAmt | 0 | 403493 |
| IRS990PF/Form990PFBalanceSheetsGrp/CapitalStockEOYAmt | 0 | 427369 |
| IRS990PF/Form990PFBalanceSheetsGrp/CorporateStockBOYAmt | 0 | 388841 |
| IRS990PF/Form990PFBalanceSheetsGrp/CorporateStockEOYAmt | 0 | 412982 |
| IRS990PF/Form990PFBalanceSheetsGrp/CorporateStockEOYFMVAmt | 0 | 1199359 |
| IRS990PF/Form990PFBalanceSheetsGrp/OrgDoesNotFollowFASB117Ind | 0 | X |
| IRS990PF/Form990PFBalanceSheetsGrp/OtherInvestmentsEOYFMVAmt | 0 | 0 |
| IRS990PF/Form990PFBalanceSheetsGrp/OtherRcvblAllwncDbtflAcctAmt | 0 | 0 |
| IRS990PF/Form990PFBalanceSheetsGrp/SavAndTempCashInvstBOYAmt | 0 | 14652 |
| IRS990PF/Form990PFBalanceSheetsGrp/SavAndTempCashInvstEOYAmt | 0 | 14387 |
| IRS990PF/Form990PFBalanceSheetsGrp/SavAndTempCashInvstEOYFMVAmt | 0 | 14387 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalAssetsBOYAmt | 0 | 403493 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalAssetsEOYAmt | 0 | 427369 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalAssetsEOYFMVAmt | 0 | 1213746 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalLiabilitiesEOYAmt | 0 | 0 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalLiabilitiesNetAstBOYAmt | 0 | 403493 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalLiabilitiesNetAstEOYAmt | 0 | 427369 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotNetAstOrFundBalancesBOYAmt | 0 | 403493 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotNetAstOrFundBalancesEOYAmt | 0 | 427369 |
| IRS990PF/MinimumInvestmentReturnGrp/AcquisitionIndebtednessAmt | 0 | 0 |
| IRS990PF/MinimumInvestmentReturnGrp/AdjustedTotalFMVOfUnusedAstAmt | 0 | 1096695 |
| IRS990PF/MinimumInvestmentReturnGrp/AverageMonthlyCashBalancesAmt | 0 | 19447 |
| IRS990PF/MinimumInvestmentReturnGrp/AverageMonthlyFMVOfSecAmt | 0 | 1077248 |
| IRS990PF/MinimumInvestmentReturnGrp/CashDeemedCharitableAmt | 0 | 16450 |
| IRS990PF/MinimumInvestmentReturnGrp/FMVAllOtherNoncharitableAstAmt | 0 | 0 |
| IRS990PF/MinimumInvestmentReturnGrp/MinimumInvestmentReturnAmt | 0 | 54012 |
| IRS990PF/MinimumInvestmentReturnGrp/NetVlNoncharitableAssetsAmt | 0 | 1080245 |
| IRS990PF/MinimumInvestmentReturnGrp/ReductionClaimedAmt | 0 | 0 |
| IRS990PF/MinimumInvestmentReturnGrp/TotalFMVOfUnusedAssetsAmt | 0 | 1096695 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/BusinessName/BusinessNameLine1Txt | 0 | WELCH & FORBES LLC |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/BusinessName/BusinessNameLine1Txt | 1 | WELCH & FORBES LLC |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/CompensationAmt | 0 | 2000 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/CompensationAmt | 1 | 12302 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/ServiceTypeTxt | 0 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/ServiceTypeTxt | 1 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/USAddress/AddressLine1Txt | 0 | 45 SCHOOL ST 5TH FLOOR |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/USAddress/AddressLine1Txt | 1 | 45 SCHOOL ST 5TH FLOOR |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/USAddress/CityNm | 0 | BOSTON |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/USAddress/CityNm | 1 | BOSTON |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/USAddress/StateAbbreviationCd | 1 | MA |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/USAddress/ZIPCd | 0 | 02108 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/USAddress/ZIPCd | 1 | 02108 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompOfHghstPdEmplOrNONETxt | 0 | NONE |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/ContractorPaidOver50kCnt | 0 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/AverageHrsPerWkDevotedToPosRt | 0 | 1 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/AverageHrsPerWkDevotedToPosRt | 1 | 1 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/AverageHrsPerWkDevotedToPosRt | 2 | 1 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/CompensationAmt | 0 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/CompensationAmt | 1 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/CompensationAmt | 2 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/PersonNm | 0 | FRANZ F COLLOREDO-MANSFELD |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/PersonNm | 1 | ANNE D COLLOREDO-MANSFELD |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/PersonNm | 2 | FRANZ JOSEF COLLOREDO-MANSFELD |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/TitleTxt | 0 | TRUSTEE |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/TitleTxt | 1 | TRUSTEE |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/TitleTxt | 2 | TRUSTEE |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/AddressLine1Txt | 0 | CABOT PROP ONE BEACON ST STE 2800 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/AddressLine1Txt | 1 | CABOT PROP ONE BEACON ST STE 2800 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/AddressLine1Txt | 2 | CABOT PROP ONE BEACON ST STE 2800 |
| 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 | 02108 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/ZIPCd | 1 | 02108 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/ZIPCd | 2 | 02108 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OtherEmployeePaidOver50kCnt | 0 | 0 |
| IRS990PF/Organization501c3ExemptPFInd | 0 | X |
| IRS990PF/PFQualifyingDistributionsGrp/CharitableAssetsAcquisPaidAmt | 0 | 0 |
| IRS990PF/PFQualifyingDistributionsGrp/ExpensesAndContributionsAmt | 0 | 55000 |
| IRS990PF/PFQualifyingDistributionsGrp/ProgramRelatedInvstTotalAmt | 0 | 0 |
| IRS990PF/PFQualifyingDistributionsGrp/QualifyingDistributionsAmt | 0 | 55000 |
| IRS990PF/PFQualifyingDistributionsGrp/SetAsideCashDistriTestAmt | 0 | 0 |
| IRS990PF/PFQualifyingDistributionsGrp/SetAsideSuitabilityTestAmt | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/BrrwOrLendDisqualifiedPrsnInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/BusinessHoldingsInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/FurnGoodsDisqualifiedPrsnInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/GrantsToIndividualsInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/GrantsToOrganizationsInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/InfluenceElectionInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/InfluenceLegislationInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/JeopardyInvestmentsInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/NoncharitablePurposeInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/PayCompDisqualifiedPrsnInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/PaymentToGovernmentOfficialInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/PayPremiumsPrsnlBnftCntrctInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/RcvFndsToPayPrsnlBnftCntrctInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/SaleOrExchDisqualifiedPrsnInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/SubjToTaxRmnrtnExPrchtPymtInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/TransferAstDisqualifiedPrsnInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/UncorrectedPriorActsInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/UncorrectedPYJeopardyInvstInd | 0 | false |
| IRS990PF/StatementsRegardingActy4720Grp/UndistributedIncomePYInd | 0 | false |
| IRS990PF/StatementsRegardingActyGrp/ActivitiesNotPreviouslyRptInd | 0 | false |
| IRS990PF/StatementsRegardingActyGrp/AtLeast5000InAssetsInd | 0 | true |
| IRS990PF/StatementsRegardingActyGrp/ChangesToArticlesOrBylawsInd | 0 | false |
| IRS990PF/StatementsRegardingActyGrp/ComplyWithPublicInspRqrInd | 0 | true |
| IRS990PF/StatementsRegardingActyGrp/DonorAdvisedFundInd | 0 | false |
| IRS990PF/StatementsRegardingActyGrp/ForeignAccountsQuestionInd | 0 | false |
| IRS990PF/StatementsRegardingActyGrp/Form1120POLFiledInd | 0 | false |
| IRS990PF/StatementsRegardingActyGrp/Form990PFFiledWithAttyGenInd | 0 | true |
| IRS990PF/StatementsRegardingActyGrp/LegislativePoliticalActyInd | 0 | false |
| IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/AddressLine1Txt | 0 | 45 SCHOOL STREET 5TH FLOOR |
| IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/CityNm | 0 | BOSTON |
| IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/StateAbbreviationCd | 0 | MA |
| IRS990PF/StatementsRegardingActyGrp/LocationOfBooksUSAddress/ZIPCd | 0 | 02108 |
| IRS990PF/StatementsRegardingActyGrp/MoreThan100SpentInd | 0 | false |
| IRS990PF/StatementsRegardingActyGrp/NewSubstantialContributorsInd | 0 | false |
| IRS990PF/StatementsRegardingActyGrp/OrganizationDissolvedEtcInd | 0 | false |
| IRS990PF/StatementsRegardingActyGrp/OrgReportOrRegisterStateCd | 0 | MA |
| IRS990PF/StatementsRegardingActyGrp/OwnControlledEntityInd | 0 | false |
| IRS990PF/StatementsRegardingActyGrp/PersonsWithBooksName/BusinessNameLine1Txt | 0 | WELCH & FORBES LLC |
| IRS990PF/StatementsRegardingActyGrp/PhoneNum | 0 | 6175231635 |
| IRS990PF/StatementsRegardingActyGrp/PrivateOperatingFoundationInd | 0 | false |
| IRS990PF/StatementsRegardingActyGrp/Section508eRqrSatisfiedInd | 0 | true |
| IRS990PF/StatementsRegardingActyGrp/UnrelatedBusIncmOverLimitInd | 0 | false |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 0 | 5000 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 1 | 45000 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/Amt | 2 | 5000 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 0 | MAINTENANCE & PRESERVATION |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 1 | LYMPHOMA RESEARCH |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/GrantOrContributionPurposeTxt | 2 | GENERAL SUPPORT |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 0 | ESSEX COUNTY TRAIL ASSOCIATION |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 1 | MASS GENERAL HOSPITAL |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientBusinessName/BusinessNameLine1Txt | 2 | WORK TO RIDE CENTER |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 0 | 501(C)(3) |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 1 | 501 (C) (3) |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientFoundationStatusTxt | 2 | 501 (C) (3) |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt | 0 | NONE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt | 1 | NONE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientRelationshipTxt | 2 | NONE |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 0 | PO BOX 358 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 1 | 125 NASHUA STREET SUITE 540 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/AddressLine1Txt | 2 | CHAMOUNIX EQUESTRIAN CENTER |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 0 | HAMILTON |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 1 | Boston |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/CityNm | 2 | PHILADELPHIA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 0 | MA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 1 | MA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/StateAbbreviationCd | 2 | PA |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 0 | 01936 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 1 | 02114 |
| IRS990PF/SupplementaryInformationGrp/GrantOrContributionPdDurYrGrp/RecipientUSAddress/ZIPCd | 2 | 19131 |
| IRS990PF/SupplementaryInformationGrp/OnlyContriToPreselectedInd | 0 | X |
| IRS990PF/SupplementaryInformationGrp/TotalGrantOrContriPdDurYrAmt | 0 | 55000 |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/LoansOrLoanGuaranteesInd | 0 | false |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/PerformanceOfServicesEtcInd | 0 | false |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/PurchaseOfAssetsNonchrtblEOInd | 0 | false |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/ReimbursementArrangementsInd | 0 | false |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/RelationshipsNonchrtblEOInd | 0 | false |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/RentalOfFacilitiesOthAssetsInd | 0 | false |
| IRS990PF/TrnsfrTransRlnNonchrtblEOGrp/SalesOrExchangesOfAssetsInd | 0 | false |
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