Liabilities / Assets
20th percentile
Higher debt load relative to assets than 20% of similar nonprofits.
EIN 75-3165488 • Stony Brook, NY
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
20th percentile
Higher debt load relative to assets than 20% of similar nonprofits.
Liabilities / Revenue
20th percentile
Higher debt load relative to revenue than 20% of similar nonprofits.
Net Margin
90th percentile
Higher net margin than 90% of similar nonprofits.
Top Officer Pay
67th percentile
Higher top officer pay than 67% of similar nonprofits.
Asset Growth
86th percentile
Faster asset growth than 86% of similar nonprofits.
Revenue Growth
87th percentile
Faster revenue growth than 87% of similar nonprofits.
Assets
Up$46,132,493
Up $3,121,608 (+7.3%) from 2022
Liabilities
Up$203,041
Up $43,199 (+27%) from 2022
Net Assets
-
No earlier filing loaded for comparison.
Revenue
Down$8,829,498
Down $731,138 (-7.6%) from 2022
Expenses
Down$5,751,089
Down $819,676 (-12%) from 2022
Net Income
Up$3,078,409
Up $88,538 (+3.0%) from 2022
Most recent year
2023 • Form 990PFSummary only. Only limited summary data is available for this year.
The latest 2023 filing currently has summary financial data only. Showing the latest detailed filing from 2022 below.
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| KATHARINE GRIFFITHS | President | FT | $302,367 | $46,112 | $348,479 |
| ELIZABETH WILLIAMSON | Secretary/Treasurer | PT | $158,796 | $64,329 | $223,125 |
| ROBERT GAFFNEY | Director | - | $0 | - | - |
| VICTORIA GERARD | Director | - | $0 | - | - |
| GREGG EISENSTEIN | Director | - | $0 | - | - |
| JOHN CASEY | Director | - | $0 | - | - |
| PAUL RANDALL | Director | - | $0 | - | - |
| CHARLES MUNCH | Director | - | $0 | - | - |
| MICHAEL STROZIER | Director | - | $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/AdjustedNetIncomeAmt | 0 | 0 |
| AccountingFeesSchedule/AccountingFeesDetail/AdjustedNetIncomeAmt | 1 | 0 |
| AccountingFeesSchedule/AccountingFeesDetail/Amt | 0 | 22750 |
| AccountingFeesSchedule/AccountingFeesDetail/Amt | 1 | 5250 |
| AccountingFeesSchedule/AccountingFeesDetail/CategoryTxt | 0 | NEWTON SANKEY & CO CPAS LLC |
| AccountingFeesSchedule/AccountingFeesDetail/CategoryTxt | 1 | GRANT THORNTON LLP |
| AccountingFeesSchedule/AccountingFeesDetail/DisbursementsCharitablePrpsAmt | 0 | 19770 |
| AccountingFeesSchedule/AccountingFeesDetail/DisbursementsCharitablePrpsAmt | 1 | 4800 |
| AccountingFeesSchedule/AccountingFeesDetail/NetInvestmentIncomeAmt | 0 | 0 |
| AccountingFeesSchedule/AccountingFeesDetail/NetInvestmentIncomeAmt | 1 | 0 |
| ExpenditureResponsibilityStmt/ExpenditureResponsibilityGrp/AnyDiversionByGranteeTxt | 0 | NO |
| ExpenditureResponsibilityStmt/ExpenditureResponsibilityGrp/BusinessName/BusinessNameLine1Txt | 0 | FRANK MELVILLE MEMORIAL FOUNDATION |
| ExpenditureResponsibilityStmt/ExpenditureResponsibilityGrp/DatesOfReportsByGranteeTxt | 0 | JUNE 2022 |
| ExpenditureResponsibilityStmt/ExpenditureResponsibilityGrp/ExpendedByGranteeAmt | 0 | 2500 |
| ExpenditureResponsibilityStmt/ExpenditureResponsibilityGrp/GrantAmt | 0 | 2500 |
| ExpenditureResponsibilityStmt/ExpenditureResponsibilityGrp/GrantDt | 0 | 2022-02-01 |
| ExpenditureResponsibilityStmt/ExpenditureResponsibilityGrp/PurposeOfGrantTxt | 0 | MAINTAINING THE PRESERVE FOR VISITORS TO ENJOY THROUGHOUT ALL SEASONS. |
| ExpenditureResponsibilityStmt/ExpenditureResponsibilityGrp/ResultsOfVerificationTxt | 0 | THE FUNDS WILL BE EXPENDED FOR THE OPERATION OF THE PRESERVE-MAINTAINING THE PRESERVE FOR VISITORS TO ENJOY THROUGHOUT ALL SEASONS WHICH INCLUDES EXPENSES FOR REGULAR MAINTENANCE, LANDSCAPE IMPROVEMENTS AND SECURITY SAFEGUARDS (I.E. FOR THE "CHARITABLE" PURPOSE OF PRESERVING LANDS FOR PUBLIC USE OR SCIENTIFIC ENJOYMENT) WITHIN THE MEANING OF SECTION 170(C)(2)(B) OF THE INTERNAL REVENUE CODE. THE AMOUNT EXPENDED BY THE GRANTEE TOWARDS ACCOMPLISHMENT OF THOSE PURPOSES IS $2,500 (BASED ON MOST RECENT REPORT RECEIVED FROM THE GRANTEE). TO THE BEST OF THE FOUNDATION'S KNOWLEDGE, THE GRANTEE HAS NOT DIVERTED ANY PORTION OF THE FUNDS (OR ANY INCOME THEREFROM) FROM THE PURPOSE OF THE GRANT. THE GRANTEE HAS CERTIFIED TO THAT IT EXPENDED, FOR CHARITABLE AND EDUCATIONAL PURPOSES, AN AMOUNT EQUAL TO THE VALUE OF THE GRANT NOT LATER THAN THE END OF THE GRANTEE'S FIRST TAXABLE YEAR AFTER THE TAX YEAR IN WHICH THE GRANT WAS RECEIVED, IN ACCORDANCE WITH THE OUT-OF-CORPUS RULES OF SEC. 4942(G)(3). |
| ExpenditureResponsibilityStmt/ExpenditureResponsibilityGrp/USAddress/AddressLine1Txt | 0 | PO BOX 2967 |
| ExpenditureResponsibilityStmt/ExpenditureResponsibilityGrp/USAddress/CityNm | 0 | SETAUKET |
| ExpenditureResponsibilityStmt/ExpenditureResponsibilityGrp/USAddress/StateAbbreviationCd | 0 | NY |
| ExpenditureResponsibilityStmt/ExpenditureResponsibilityGrp/USAddress/ZIPCd | 0 | 117330876 |
| ExpenditureResponsibilityStmt/ExpenditureResponsibilityGrp/VerificationDt | 0 | 2022-06-30 |
| GeneralExplanationAttachment/GeneralExplanationGrp/FormAndLineReferenceDesc | 0 | FORM 990-PF, PART I, LINE 19 |
| GeneralExplanationAttachment/GeneralExplanationGrp/FormAndLineReferenceDesc | 1 | FORM 990-PF, PART XI |
| GeneralExplanationAttachment/GeneralExplanationGrp/IdentifierTxt | 0 | DEPRECIATION |
| GeneralExplanationAttachment/GeneralExplanationGrp/IdentifierTxt | 1 | QUALIFYING DISTRIBUTIONS |
| GeneralExplanationAttachment/GeneralExplanationGrp/MediumExplanationTxt | 0 | LAND IMPROVEMENTS - $1,707,194BUILDING - $24,985BUILDING IMPROVEMENTS - $110,669 FURNITURE & FIXTURES - $50,354EQUIPMENT - $98,058VEHICLES - $45,433 ARTWORK - $19,514 TOTAL DEPRECIATION: $2,056,207 |
| GeneralExplanationAttachment/GeneralExplanationGrp/MediumExplanationTxt | 1 | PURSUANT TO IRS TREASURY REGULATION SECTION 53.4942(A)(3)(C)(I), THE AVALON NATURE PRESERVE, INC.("AVALON") IS PROVIDING THE FOLLOWING DISCLOSURE WITH RESPECT TO THE QUALIFYING DISTRIBUTIONS REPORTED ON PART XI LINE 4, $7,745,528 OF THE FORM 990-PF.AVALON'S EXEMPT PURPOSE IS TO MAINTAIN AND, WHERE APPROPRIATE, RESTORE THE NATURAL ELEMENTS OF THE PRESERVE. THE 216 ACRES THAT COMPRISE AVALON WERE ONCE A RESIDENTIAL SITE, LIKELY ABANDONED IN THE EARLY 1900S. BY 1997, WHEN THE PAUL SIMONS FOUNDATION, INC. ("PSF") PURCHASED THE LAND, YEARS OF NEGLECT HAD ALLOWED MANY NON-NATIVE SPECIES OF VINES AND SHRUBS TO INVADE AND DOMINATE, SMOTHERING PLANTS, DESTROYING LARGE TREES AND MAKING THE AREA VIRTUALLY IMPENETRABLE. THE FOUNDATION SEEKS NOT ONLY TO PROTECT THIS UNIQUE AND NATURAL HABITAT BUT ALSO TO RESTORE AND MAINTAIN ITS ECOLOGICAL HERITAGE. IT IS HOPED THAT PRESENT AND FUTURE GENERATIONS OF VISITORS WILL FIND PLEASURE IN THESE GARDENS, WALKS AND WOODS.PAUL SIMONS GREW UP ON LONG ISLAND AND SPENT MUCH OF HIS TIME IN THE THREE VILLAGE AREA. HE WAS AN AVID HIKER, SKIER AND BICYCLIST WHO ENJOYED ALL TYPES OF OUTDOOR ACTIVITIES. AVALON WAS ESTABLISHED TO CELEBRATE THE LIFE OF PAUL SIMONS, WHOSE YEARS AMONG FRIENDS AND FAMILY WERE PREMATURELY INTERRUPTED, YET WHOSE SPIRIT AND CREATIVE ENERGY REMAIN VIBRANTLY ALIVE IN THE NATURAL WORLD HE CHERISHED.AVALON OFFERS YOUTH BASED PROGRAMS SUCH AS THE "OUTDOOR LEADERSHIP AND ENVIRONMENTAL STEWARDSHIP PROGRAM," IN AN ATTEMPT TO GET YOUNG PEOPLE INTO THE OUTDOORS AND CONNECTED TO THE ENVIRONMENT. MORE INFORMATION CAN BE FOUND ON AVALON'S WEBSITE, HTTPS://AVALONNATUREPRESERVE.ORG. IN ADDITION, AVALON HOSTS ADDITIONAL PROGRAMS SUCH AS "AVALON SKYLAB," "MINDFULNESS-BASED STRESS REDUCTION (MBSR) COURSE," YOGA AND REGULAR BIRD WALKS.IN FISCAL 2022, PAUL SIMONS FOUNDATION ("PSF") MADE A CASH GRANT OF $9,500,000 TO AVALON; EXPENDITURES INCURRED BY AVALON WITH THESE FUNDS HAVE BEEN EXCLUDED FROM AVALON'S CALCULATION OF QUALIFYING DISTRIBUTIONS AND SHALL BE TREATED AS QUALIFYING DISTRIBUTIONS ON THE TAX RETURN OF PSF. THIS IS PERMITTED UNDER 53.4942(A)(3)(C)(1) BECAUSE: 1. NOT LATER THAN ONE YEAR AFTER THE END OF THE TAX YEAR IN WHICH AVALON RECEIVED FUNDING FROM PSF, IT MADE A DISTRIBUTION EQUAL TO THE FULL AMOUNT OF THE CONTRIBUTION; THE DISTRIBUTION CONSTITUTES A QUALIFYING DISTRIBUTION THAT IS TREATED AS BEING MADE OUT OF CORPUS (OR WOULD BE TREATED AS SUCH IF AVALON WERE A PRIVATE NON-OPERATING FOUNDATION), AND 2. AVALON HAS PROVIDED ADEQUATE RECORDS TO PSF THAT IT HAS ACTUALLY PAID OUT THE GRANTED FUNDS TO QUALIFYING SECTION 501(C)(3) GRANTEES.AVALON'S TOTAL QUALIFYING DISTRIBUTIONS IN FISCAL 2022 IS CALCULATED AS FOLLOWS: *TOTAL ADJUSTED QUALIFYING DISTRIBUTIONS PER PART XI, LINE 4: $7,745,528 *EXCLUDED PSF CONDUIT GIFT - $7,695,528 *TOTAL QUALIFYING DISTRIBUTIONS REPORTABLE ON PART XIII, LINES 2(C) AND (E): $50,000IN FISCAL 2022, AVALON PURCHASED ADDITIONAL FIXED ASSETS TO BE INCORPORATED INTO THE PRESERVE. THE FIXED ASSETS WERE VALUED AT $3,346,186 AND ARE INCLUDED IN PART XI, LINE 2 AS ASSETS THAT WILL BE USED DIRECTLY TO FULFILL AVALON'S CHARITABLE MISSION. |
| IRS990PF/AnalysisIncomeProducingActyGrp/GrossProfitLossSlsOfInvntryGrp/ExclusionAmt | 0 | 141 |
| IRS990PF/AnalysisIncomeProducingActyGrp/GrossProfitLossSlsOfInvntryGrp/ExclusionCd | 0 | 01 |
| IRS990PF/AnalysisIncomeProducingActyGrp/IntOnSavAndTempCashInvstGrp/ExclusionAmt | 0 | 2035 |
| IRS990PF/AnalysisIncomeProducingActyGrp/IntOnSavAndTempCashInvstGrp/ExclusionCd | 0 | 14 |
| IRS990PF/AnalysisIncomeProducingActyGrp/ProgramServiceRevenueDtl/Desc | 0 | SEEDLINGS PROGRAM REVENUES |
| IRS990PF/AnalysisIncomeProducingActyGrp/ProgramServiceRevenueDtl/RelatedOrExemptFunctionIncmAmt | 0 | 8460 |
| IRS990PF/AnalysisIncomeProducingActyGrp/SubtotalsIncmProducingActyGrp/ExclusionAmt | 0 | 2176 |
| IRS990PF/AnalysisIncomeProducingActyGrp/SubtotalsIncmProducingActyGrp/RelatedOrExemptFunctionIncmAmt | 0 | 8460 |
| IRS990PF/AnalysisIncomeProducingActyGrp/SubtotalsIncmProducingActyGrp/UnrelatedBusinessTaxblIncmAmt | 0 | 0 |
| IRS990PF/AnalysisIncomeProducingActyGrp/TotalIncomeProducingActyAmt | 0 | 10636 |
| IRS990PF/AnalysisOfRevenueAndExpenses/AccountingFeesAdjNetIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/AccountingFeesChrtblPrpsAmt | 0 | 24570 |
| IRS990PF/AnalysisOfRevenueAndExpenses/AccountingFeesNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/AccountingFeesRevAndExpnssAmt | 0 | 28000 |
| IRS990PF/AnalysisOfRevenueAndExpenses/AdjustedNetIncomeAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/CapGainNetIncmNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/CompOfcrDirTrstAdjNetIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/CompOfcrDirTrstDsbrsChrtblAmt | 0 | 461163 |
| IRS990PF/AnalysisOfRevenueAndExpenses/CompOfcrDirTrstNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/CompOfcrDirTrstRevAndExpnssAmt | 0 | 461163 |
| IRS990PF/AnalysisOfRevenueAndExpenses/ContriPaidDsbrsChrtblAmt | 0 | 334217 |
| IRS990PF/AnalysisOfRevenueAndExpenses/ContriPaidRevAndExpnssAmt | 0 | 316015 |
| IRS990PF/AnalysisOfRevenueAndExpenses/ContriRcvdRevAndExpnssAmt | 0 | 9550000 |
| IRS990PF/AnalysisOfRevenueAndExpenses/CostOfGoodsSoldAmt | 0 | 272 |
| IRS990PF/AnalysisOfRevenueAndExpenses/DeprecAndDpltnAdjNetIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/DeprecAndDpltnNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/DeprecAndDpltnRevAndExpnssAmt | 0 | 2056207 |
| IRS990PF/AnalysisOfRevenueAndExpenses/ExcessRevenueOverExpensesAmt | 0 | 2989871 |
| IRS990PF/AnalysisOfRevenueAndExpenses/GrossProfitAdjNetIncmAmt | 0 | 141 |
| IRS990PF/AnalysisOfRevenueAndExpenses/GrossProfitRevAndExpnssAmt | 0 | 141 |
| IRS990PF/AnalysisOfRevenueAndExpenses/GrossSalesLessRetAndAllwncAmt | 0 | 413 |
| IRS990PF/AnalysisOfRevenueAndExpenses/InterestOnSavingsAdjNetIncmAmt | 0 | 2035 |
| IRS990PF/AnalysisOfRevenueAndExpenses/InterestOnSavNetInvstIncmAmt | 0 | 2035 |
| IRS990PF/AnalysisOfRevenueAndExpenses/InterestOnSavRevAndExpnssAmt | 0 | 2035 |
| IRS990PF/AnalysisOfRevenueAndExpenses/LegalFeesAdjNetIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/LegalFeesDsbrsChrtblAmt | 0 | 8848 |
| IRS990PF/AnalysisOfRevenueAndExpenses/LegalFeesNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/LegalFeesRevAndExpnssAmt | 0 | 8848 |
| IRS990PF/AnalysisOfRevenueAndExpenses/NetInvestmentIncomeAmt | 0 | 2021 |
| IRS990PF/AnalysisOfRevenueAndExpenses/NetSTCapitalGainAdjNetIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OccupancyAdjNetIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OccupancyDsbrsChrtblAmt | 0 | 66246 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OccupancyNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OccupancyRevAndExpnssAmt | 0 | 65670 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OthEmplSlrsWgsAdjNetIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OthEmplSlrsWgsDsbrsChrtblAmt | 0 | 1553006 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OthEmplSlrsWgsNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OthEmplSlrsWgsRevAndExpnssAmt | 0 | 1552767 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherExpensesAdjNetIncmAmt | 0 | 10636 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherExpensesDsbrsChrtblAmt | 0 | 915655 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherExpensesNetInvstIncmAmt | 0 | 14 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherExpensesRevAndExpnssAmt | 0 | 1046886 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherIncomeAdjNetIncmAmt | 0 | 8460 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherIncomeNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherIncomeRevAndExpnssAmt | 0 | 8460 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherProfFeesAdjNetIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherProfFeesDsbrsChrtblAmt | 0 | 51532 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherProfFeesNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/OtherProfFeesRevAndExpnssAmt | 0 | 36762 |
| IRS990PF/AnalysisOfRevenueAndExpenses/PensionEmplBnftAdjNetIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/PensionEmplBnftDsbrsChrtblAmt | 0 | 966213 |
| IRS990PF/AnalysisOfRevenueAndExpenses/PensionEmplBnftNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/PensionEmplBnftRevAndExpnssAmt | 0 | 978174 |
| IRS990PF/AnalysisOfRevenueAndExpenses/PrintingAndPubAdjNetIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/PrintingAndPubDsbrsChrtblAmt | 0 | 2845 |
| IRS990PF/AnalysisOfRevenueAndExpenses/PrintingAndPubNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/PrintingAndPubRevAndExpnssAmt | 0 | 4687 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TaxesAdjNetIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TaxesDsbrsChrtblAmt | 0 | 2803 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TaxesNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TaxesRevAndExpnssAmt | 0 | 3342 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalAdjNetIncmAmt | 0 | 10636 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalExpensesAdjNetIncmAmt | 0 | 10636 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalExpensesDsbrsChrtblAmt | 0 | 4399342 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalExpensesNetInvstIncmAmt | 0 | 14 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalExpensesRevAndExpnssAmt | 0 | 6570765 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalNetInvstIncmAmt | 0 | 2035 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotalRevAndExpnssAmt | 0 | 9560636 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotOprExpensesAdjNetIncmAmt | 0 | 10636 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotOprExpensesDsbrsChrtblAmt | 0 | 4065125 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotOprExpensesNetInvstIncmAmt | 0 | 14 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TotOprExpensesRevAndExpnssAmt | 0 | 6254750 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TravConfMeetingAdjNetIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TravConfMeetingDsbrsChrtblAmt | 0 | 12244 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TravConfMeetingNetInvstIncmAmt | 0 | 0 |
| IRS990PF/AnalysisOfRevenueAndExpenses/TravConfMeetingRevAndExpnssAmt | 0 | 12244 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/ExcessRevenueOverExpensesAmt | 0 | 2989871 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/OtherDecreasesAmt | 0 | 0 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/OtherIncreasesAmt | 0 | 0 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/SubtotalAmt | 0 | 42851043 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/TotNetAstOrFundBalancesBOYAmt | 0 | 39861172 |
| IRS990PF/ChgInNetAssetsFundBalancesGrp/TotNetAstOrFundBalancesEOYAmt | 0 | 42851043 |
| IRS990PF/DistributableAmountGrp/Sect4942j3j5FndtnAndFrgnOrgInd | 0 | X |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/AppliedToESTaxAmt | 0 | 1732 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/BackupWithholdingWithheldAmt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/EsPenaltyAmt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/EstimatedPlusOvpmtIncmTxAmt | 0 | 1760 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/ExemptFrgnOrgTaxWthldAtSrceAmt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/ExtsnRequestIncomeTaxPaidAmt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/InvestmentIncomeExciseTaxAmt | 0 | 28 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/OverpaymentAmt | 0 | 1732 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/RefundAmt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/SubtitleATaxAmt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/SubtotalAmt | 0 | 28 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/TaxBasedOnInvestmentIncomeAmt | 0 | 28 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/TaxUnderSection511Amt | 0 | 0 |
| IRS990PF/ExciseTaxBasedOnInvstIncmGrp/TotalPaymentsAndCreditsAmt | 0 | 1760 |
| IRS990PF/FMVAssetsEOYAmt | 0 | 43010885 |
| IRS990PF/Form990PFBalanceSheetsGrp/AccountsPayableBOYAmt | 0 | 114500 |
| IRS990PF/Form990PFBalanceSheetsGrp/AccountsPayableEOYAmt | 0 | 159842 |
| IRS990PF/Form990PFBalanceSheetsGrp/CashBOYAmt | 0 | 153709 |
| IRS990PF/Form990PFBalanceSheetsGrp/CashEOYAmt | 0 | 331306 |
| IRS990PF/Form990PFBalanceSheetsGrp/CashEOYFMVAmt | 0 | 331306 |
| IRS990PF/Form990PFBalanceSheetsGrp/LandBldgEquipAccumDeprecAmt | 0 | 5375337 |
| IRS990PF/Form990PFBalanceSheetsGrp/LandBldgEquipCostOrOtherBssAmt | 0 | 44663823 |
| IRS990PF/Form990PFBalanceSheetsGrp/LandBOYAmt | 0 | 37998507 |
| IRS990PF/Form990PFBalanceSheetsGrp/LandEOYAmt | 0 | 39288486 |
| IRS990PF/Form990PFBalanceSheetsGrp/LandEOYFMVAmt | 0 | 39288486 |
| IRS990PF/Form990PFBalanceSheetsGrp/NoDonorRstrNetAssestsBOYAmt | 0 | 39861172 |
| IRS990PF/Form990PFBalanceSheetsGrp/NoDonorRstrNetAssestsEOYAmt | 0 | 42851043 |
| IRS990PF/Form990PFBalanceSheetsGrp/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990PF/Form990PFBalanceSheetsGrp/PrepaidExpensesBOYAmt | 0 | 37680 |
| IRS990PF/Form990PFBalanceSheetsGrp/PrepaidExpensesEOYAmt | 0 | 45632 |
| IRS990PF/Form990PFBalanceSheetsGrp/PrepaidExpensesEOYFMVAmt | 0 | 45632 |
| IRS990PF/Form990PFBalanceSheetsGrp/SavAndTempCashInvstBOYAmt | 0 | 1785776 |
| IRS990PF/Form990PFBalanceSheetsGrp/SavAndTempCashInvstEOYAmt | 0 | 3345461 |
| IRS990PF/Form990PFBalanceSheetsGrp/SavAndTempCashInvstEOYFMVAmt | 0 | 3345461 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalAssetsBOYAmt | 0 | 39975672 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalAssetsEOYAmt | 0 | 43010885 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalAssetsEOYFMVAmt | 0 | 43010885 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalLiabilitiesBOYAmt | 0 | 114500 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalLiabilitiesEOYAmt | 0 | 159842 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalLiabilitiesNetAstBOYAmt | 0 | 39975672 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotalLiabilitiesNetAstEOYAmt | 0 | 43010885 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotNetAstOrFundBalancesBOYAmt | 0 | 39861172 |
| IRS990PF/Form990PFBalanceSheetsGrp/TotNetAstOrFundBalancesEOYAmt | 0 | 42851043 |
| IRS990PF/MethodOfAccountingAccrualInd | 0 | X |
| IRS990PF/MinimumInvestmentReturnGrp/AcquisitionIndebtednessAmt | 0 | 0 |
| IRS990PF/MinimumInvestmentReturnGrp/AdjustedTotalFMVOfUnusedAstAmt | 0 | 3266241 |
| IRS990PF/MinimumInvestmentReturnGrp/AverageMonthlyCashBalancesAmt | 0 | 3266241 |
| IRS990PF/MinimumInvestmentReturnGrp/AverageMonthlyFMVOfSecAmt | 0 | 0 |
| IRS990PF/MinimumInvestmentReturnGrp/CashDeemedCharitableAmt | 0 | 48994 |
| IRS990PF/MinimumInvestmentReturnGrp/FMVAllOtherNoncharitableAstAmt | 0 | 0 |
| IRS990PF/MinimumInvestmentReturnGrp/MinimumInvestmentReturnAmt | 0 | 160862 |
| IRS990PF/MinimumInvestmentReturnGrp/NetVlNoncharitableAssetsAmt | 0 | 3217247 |
| IRS990PF/MinimumInvestmentReturnGrp/ReductionClaimedAmt | 0 | 0 |
| IRS990PF/MinimumInvestmentReturnGrp/TotalFMVOfUnusedAssetsAmt | 0 | 3266241 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/AverageHrsPerWkDevotedToPosRt | 0 | 40.00 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/AverageHrsPerWkDevotedToPosRt | 1 | 40.00 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/AverageHrsPerWkDevotedToPosRt | 2 | 40.00 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/AverageHrsPerWkDevotedToPosRt | 3 | 35.00 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/AverageHrsPerWkDevotedToPosRt | 4 | 40.00 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/CompensationAmt | 0 | 174396 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/CompensationAmt | 1 | 140767 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/CompensationAmt | 2 | 121603 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/CompensationAmt | 3 | 108142 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/CompensationAmt | 4 | 124602 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/EmployeeBenefitsAmt | 0 | 65870 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/EmployeeBenefitsAmt | 1 | 62668 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/EmployeeBenefitsAmt | 2 | 60752 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/EmployeeBenefitsAmt | 3 | 39772 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/EmployeeBenefitsAmt | 4 | 15492 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/ExpenseAccountAmt | 0 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/ExpenseAccountAmt | 1 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/ExpenseAccountAmt | 2 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/ExpenseAccountAmt | 3 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/ExpenseAccountAmt | 4 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/PersonNm | 0 | MARK BRUNN |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/PersonNm | 1 | TOM CAROLAN |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/PersonNm | 2 | DOUGLAS BLAKE |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/PersonNm | 3 | SARAH HADDOCK |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/PersonNm | 4 | BENJAMIN KALINSKY |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/TitleTxt | 0 | HEAD OF MAINTENANCE |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/TitleTxt | 1 | MAINTENANCE |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/TitleTxt | 2 | MAINTENANCE |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/TitleTxt | 3 | ADMINISTRATIVE |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/TitleTxt | 4 | HEAD OF SECURITY |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/USAddress/AddressLine1Txt | 0 | 200 HARBOR ROAD |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/USAddress/AddressLine1Txt | 1 | 200 HARBOR ROAD |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/USAddress/AddressLine1Txt | 2 | 200 HARBOR ROAD |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/USAddress/AddressLine1Txt | 3 | 200 HARBOR ROAD |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/USAddress/AddressLine1Txt | 4 | 200 HARBOR ROAD |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/USAddress/CityNm | 0 | STONY BROOK |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/USAddress/CityNm | 1 | STONY BROOK |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/USAddress/CityNm | 2 | STONY BROOK |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/USAddress/CityNm | 3 | STONY BROOK |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/USAddress/CityNm | 4 | STONY BROOK |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/USAddress/StateAbbreviationCd | 0 | NY |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/USAddress/StateAbbreviationCd | 1 | NY |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/USAddress/StateAbbreviationCd | 2 | NY |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/USAddress/StateAbbreviationCd | 3 | NY |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/USAddress/StateAbbreviationCd | 4 | NY |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/USAddress/ZIPCd | 0 | 11790 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/USAddress/ZIPCd | 1 | 11790 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/USAddress/ZIPCd | 2 | 11790 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/USAddress/ZIPCd | 3 | 11790 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationHighestPaidEmplGrp/USAddress/ZIPCd | 4 | 11790 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/BusinessName/BusinessNameLine1Txt | 0 | MSA SECURITY |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/BusinessName/BusinessNameLine1Txt | 1 | MICHAEL WEBER |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/CompensationAmt | 0 | 310475 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/CompensationAmt | 1 | 50841 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/ServiceTypeTxt | 0 | SECURITY SERVICES |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/ServiceTypeTxt | 1 | ACCOUNTING SERVICES |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/USAddress/AddressLine1Txt | 0 | 9 MURRAY STREET |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/USAddress/AddressLine1Txt | 1 | 200 HARBOR ROAD |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/USAddress/CityNm | 0 | NEW YORK |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/USAddress/CityNm | 1 | STONY BROOK |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/USAddress/StateAbbreviationCd | 0 | NY |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/USAddress/StateAbbreviationCd | 1 | NY |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/USAddress/ZIPCd | 0 | 10007 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/CompensationOfHghstPdCntrctGrp/USAddress/ZIPCd | 1 | 11790 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/ContractorPaidOver50kCnt | 0 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/AverageHrsPerWkDevotedToPosRt | 0 | 0.05 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/AverageHrsPerWkDevotedToPosRt | 1 | 0.05 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/AverageHrsPerWkDevotedToPosRt | 2 | 0.05 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/AverageHrsPerWkDevotedToPosRt | 3 | 0.05 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/AverageHrsPerWkDevotedToPosRt | 4 | 0.05 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/AverageHrsPerWkDevotedToPosRt | 5 | 0.05 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/AverageHrsPerWkDevotedToPosRt | 6 | 0.05 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/AverageHrsPerWkDevotedToPosRt | 7 | 40.00 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/AverageHrsPerWkDevotedToPosRt | 8 | 30.00 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/CompensationAmt | 0 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/CompensationAmt | 1 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/CompensationAmt | 2 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/CompensationAmt | 3 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/CompensationAmt | 4 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/CompensationAmt | 5 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/CompensationAmt | 6 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/CompensationAmt | 7 | 302367 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/CompensationAmt | 8 | 158796 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/EmployeeBenefitProgramAmt | 0 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/EmployeeBenefitProgramAmt | 1 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/EmployeeBenefitProgramAmt | 2 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/EmployeeBenefitProgramAmt | 3 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/EmployeeBenefitProgramAmt | 4 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/EmployeeBenefitProgramAmt | 5 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/EmployeeBenefitProgramAmt | 6 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/EmployeeBenefitProgramAmt | 7 | 46112 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/EmployeeBenefitProgramAmt | 8 | 64329 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/ExpenseAccountOtherAllwncAmt | 0 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/ExpenseAccountOtherAllwncAmt | 1 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/ExpenseAccountOtherAllwncAmt | 2 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/ExpenseAccountOtherAllwncAmt | 3 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/ExpenseAccountOtherAllwncAmt | 4 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/ExpenseAccountOtherAllwncAmt | 5 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/ExpenseAccountOtherAllwncAmt | 6 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/ExpenseAccountOtherAllwncAmt | 7 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/ExpenseAccountOtherAllwncAmt | 8 | 0 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/PersonNm | 0 | ROBERT GAFFNEY |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/PersonNm | 1 | VICTORIA GERARD |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/PersonNm | 2 | GREGG EISENSTEIN |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/PersonNm | 3 | JOHN CASEY |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/PersonNm | 4 | PAUL RANDALL |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/PersonNm | 5 | CHARLES MUNCH |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/PersonNm | 6 | MICHAEL STROZIER |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/PersonNm | 7 | KATHARINE GRIFFITHS |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/PersonNm | 8 | ELIZABETH WILLIAMSON |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/TitleTxt | 0 | DIRECTOR |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/TitleTxt | 1 | DIRECTOR |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/TitleTxt | 2 | DIRECTOR |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/TitleTxt | 3 | DIRECTOR |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/TitleTxt | 4 | DIRECTOR |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/TitleTxt | 5 | DIRECTOR |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/TitleTxt | 6 | DIRECTOR |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/TitleTxt | 7 | PRESIDENT |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/TitleTxt | 8 | SECRETARY/TREASURER |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/AddressLine1Txt | 0 | 200 HARBOR ROAD |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/AddressLine1Txt | 1 | 200 HARBOR ROAD |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/AddressLine1Txt | 2 | 200 HARBOR ROAD |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/AddressLine1Txt | 3 | 200 HARBOR ROAD |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/AddressLine1Txt | 4 | 200 HARBOR ROAD |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/AddressLine1Txt | 5 | 200 HARBOR ROAD |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/AddressLine1Txt | 6 | 200 HARBOR ROAD |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/AddressLine1Txt | 7 | 200 HARBOR ROAD |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/AddressLine1Txt | 8 | 200 HARBOR ROAD |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/CityNm | 0 | STONY BROOK |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/CityNm | 1 | STONY BROOK |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/CityNm | 2 | STONY BROOK |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/CityNm | 3 | STONY BROOK |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/CityNm | 4 | STONY BROOK |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/CityNm | 5 | STONY BROOK |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/CityNm | 6 | STONY BROOK |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/CityNm | 7 | STONY BROOK |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/CityNm | 8 | STONY BROOK |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/StateAbbreviationCd | 0 | NY |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/StateAbbreviationCd | 1 | NY |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/StateAbbreviationCd | 2 | NY |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/StateAbbreviationCd | 3 | NY |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/StateAbbreviationCd | 4 | NY |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/StateAbbreviationCd | 5 | NY |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/StateAbbreviationCd | 6 | NY |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/StateAbbreviationCd | 7 | NY |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/StateAbbreviationCd | 8 | NY |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/ZIPCd | 0 | 11790 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/ZIPCd | 1 | 11790 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/ZIPCd | 2 | 11790 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/ZIPCd | 3 | 11790 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/ZIPCd | 4 | 11790 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/ZIPCd | 5 | 11790 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/ZIPCd | 6 | 11790 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/ZIPCd | 7 | 11790 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OfficerDirTrstKeyEmplGrp/USAddress/ZIPCd | 8 | 11790 |
| IRS990PF/OfficerDirTrstKeyEmplInfoGrp/OtherEmployeePaidOver50kCnt | 0 | 10 |
| IRS990PF/Organization501c3ExemptPFInd | 0 | X |
| IRS990PF/PFQualifyingDistributionsGrp/CharitableAssetsAcquisPaidAmt | 0 | 3346186 |
| IRS990PF/PFQualifyingDistributionsGrp/ExpensesAndContributionsAmt | 0 | 4399342 |
| IRS990PF/PFQualifyingDistributionsGrp/ProgramRelatedInvstTotalAmt | 0 | 0 |
| IRS990PF/PFQualifyingDistributionsGrp/QualifyingDistributionsAmt | 0 | 7745528 |
| IRS990PF/PrivateOperatingFoundationsGrp/GrossInvestmentIncomeGrp/TotalAmt | 0 | 0 |
| IRS990PF/PrivateOperatingFoundationsGrp/LargestSupportFromEOGrp/TotalAmt | 0 | 0 |
| IRS990PF/PrivateOperatingFoundationsGrp/LessorAdjNetIncmMinInvstRetGrp/CurrentYearAmt | 0 | 0 |
| IRS990PF/PrivateOperatingFoundationsGrp/LessorAdjNetIncmMinInvstRetGrp/TotalAmt | 0 | 0 |
| IRS990PF/PrivateOperatingFoundationsGrp/LessorAdjNetIncmMinInvstRetGrp/Year1Amt | 0 | 0 |
| IRS990PF/PrivateOperatingFoundationsGrp/LessorAdjNetIncmMinInvstRetGrp/Year2Amt | 0 | 0 |
| IRS990PF/PrivateOperatingFoundationsGrp/LessorAdjNetIncmMinInvstRetGrp/Year3Amt | 0 | 0 |
| IRS990PF/PrivateOperatingFoundationsGrp/Pct85LessorAdjIncmOrMinRetGrp/CurrentYearAmt | 0 | 0 |
| IRS990PF/PrivateOperatingFoundationsGrp/Pct85LessorAdjIncmOrMinRetGrp/TotalAmt | 0 | 0 |
| IRS990PF/PrivateOperatingFoundationsGrp/Pct85LessorAdjIncmOrMinRetGrp/Year1Amt | 0 | 0 |
| IRS990PF/PrivateOperatingFoundationsGrp/Pct85LessorAdjIncmOrMinRetGrp/Year2Amt | 0 | 0 |
| IRS990PF/PrivateOperatingFoundationsGrp/Pct85LessorAdjIncmOrMinRetGrp/Year3Amt | 0 | 0 |
| IRS990PF/PrivateOperatingFoundationsGrp/PrivateOperatingFndtnRulingDt | 0 | 2005-04-13 |
| IRS990PF/PrivateOperatingFoundationsGrp/PublicSupportType/TotalAmt | 0 | 0 |
| IRS990PF/PrivateOperatingFoundationsGrp/QualifyingDistributionsGrp/CurrentYearAmt | 0 | 50000 |
| IRS990PF/PrivateOperatingFoundationsGrp/QualifyingDistributionsGrp/TotalAmt | 0 | 4840166 |
| IRS990PF/PrivateOperatingFoundationsGrp/QualifyingDistributionsGrp/Year1Amt | 0 | 1064311 |
| IRS990PF/PrivateOperatingFoundationsGrp/QualifyingDistributionsGrp/Year2Amt | 0 | 3105805 |
| IRS990PF/PrivateOperatingFoundationsGrp/QualifyingDistributionsGrp/Year3Amt | 0 | 620050 |
| IRS990PF/PrivateOperatingFoundationsGrp/QualifyingDistriMadeDrtGrp/CurrentYearAmt | 0 | 50000 |
| IRS990PF/PrivateOperatingFoundationsGrp/QualifyingDistriMadeDrtGrp/TotalAmt | 0 | 4840166 |
| IRS990PF/PrivateOperatingFoundationsGrp/QualifyingDistriMadeDrtGrp/Year1Amt | 0 | 1064311 |
| IRS990PF/PrivateOperatingFoundationsGrp/QualifyingDistriMadeDrtGrp/Year2Amt | 0 | 3105805 |
| IRS990PF/PrivateOperatingFoundationsGrp/QualifyingDistriMadeDrtGrp/Year3Amt | 0 | 620050 |
| IRS990PF/PrivateOperatingFoundationsGrp/QualifyingDistriNotUsedDrtGrp/CurrentYearAmt | 0 | 0 |
| IRS990PF/PrivateOperatingFoundationsGrp/QualifyingDistriNotUsedDrtGrp/TotalAmt | 0 | 0 |
| IRS990PF/PrivateOperatingFoundationsGrp/QualifyingDistriNotUsedDrtGrp/Year1Amt | 0 | 0 |
| IRS990PF/PrivateOperatingFoundationsGrp/QualifyingDistriNotUsedDrtGrp/Year2Amt | 0 | 0 |
| IRS990PF/PrivateOperatingFoundationsGrp/QualifyingDistriNotUsedDrtGrp/Year3Amt | 0 | 0 |
| IRS990PF/PrivateOperatingFoundationsGrp/Section4942j3Ind | 0 | X |
| IRS990PF/PrivateOperatingFoundationsGrp/TotalAssetsGrp/CurrentYearAmt | 0 | 43010885 |
| IRS990PF/PrivateOperatingFoundationsGrp/TotalAssetsGrp/TotalAmt | 0 | 154302144 |
| IRS990PF/PrivateOperatingFoundationsGrp/TotalAssetsGrp/Year1Amt | 0 | 39975672 |
| IRS990PF/PrivateOperatingFoundationsGrp/TotalAssetsGrp/Year2Amt | 0 | 36116095 |
| IRS990PF/PrivateOperatingFoundationsGrp/TotalAssetsGrp/Year3Amt | 0 | 35199492 |
| IRS990PF/PrivateOperatingFoundationsGrp/TotalAssetsSect4942j3BiGrp/CurrentYearAmt | 0 | 39288486 |
| IRS990PF/PrivateOperatingFoundationsGrp/TotalAssetsSect4942j3BiGrp/TotalAmt | 0 | 139374141 |
| IRS990PF/PrivateOperatingFoundationsGrp/TotalAssetsSect4942j3BiGrp/Year1Amt | 0 | 37998507 |
| IRS990PF/PrivateOperatingFoundationsGrp/TotalAssetsSect4942j3BiGrp/Year2Amt | 0 | 33118278 |
| IRS990PF/PrivateOperatingFoundationsGrp/TotalAssetsSect4942j3BiGrp/Year3Amt | 0 | 28968870 |
| IRS990PF/PrivateOperatingFoundationsGrp/TotalSupportGrp/TotalAmt | 0 | 0 |
| IRS990PF/PrivateOperatingFoundationsGrp/TwoThirdsMinimumInvstRetGrp/TotalAmt | 0 | 0 |
| IRS990PF/RlnOfActyToAccomOfExmptPrpsGrp/RlnOfActyToAccomOfExmptPrpsGrp/LineNumberTxt | 0 | 1A |
| IRS990PF/RlnOfActyToAccomOfExmptPrpsGrp/RlnOfActyToAccomOfExmptPrpsGrp/RelationshipStatementTxt | 0 | THE FOUNDATION'S PRIMARY EXEMPT PURPOSE AS A PRIVATE OPERATING FOUNDATION IS TO MAINTAIN AND RESTORE THE NATURAL ELEMENTS OF THE PRESERVE. IT IS HOPED THAT PRESENT AND FUTURE GENERATIONS OF VISITORS WILL FIND PLEASURE IN THESE GARDENS, WALKS AND WOODS. IN ADDITION, THE PRESERVE OFFERS VARIOUS PROGRAMS IN AN ATTEMPT TO GET CHILDREN INTO THE OUTDOORS AND CONNECTED TO THEIR NATURAL ENVIRONMENT. THE MEANS BY WHICH THE FOUNDATION FULFILLS THIS GOAL IS THROUGH THE "AVALON SEEDLINGS AND THE "NATURAL CONNECTIONS" PROGRAMS. THROUGH THESE PROGRAMS, CHILDREN HAVE THE OPPORTUNITY TO LEARN ABOUT WHAT THE NATURAL WORLD HAS TO OFFER AND PARTICIPATE IN A VARIETY OF HANDS ON ACTIVITIES. THE PROGRAMS ARE OFFERED YEAR ROUND AND MEET ON THE GROUNDS OF THE AVALON PRESERVE. |
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| IRS990PF/StatementsRegardingActy4720Grp/BusinessHoldingsInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/FurnGoodsDisqualifiedPrsnInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/GrantsToIndividualsInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/GrantsToOrganizationsInd | 0 | 1 |
| IRS990PF/StatementsRegardingActy4720Grp/InfluenceElectionInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/InfluenceLegislationInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/JeopardyInvestmentsInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/MaintainedExpenditureRspnsInd | 0 | 1 |
| IRS990PF/StatementsRegardingActy4720Grp/NoncharitablePurposeInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/PayCompDisqualifiedPrsnInd | 0 | 1 |
| IRS990PF/StatementsRegardingActy4720Grp/PaymentToGovernmentOfficialInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990PF/StatementsRegardingActy4720Grp/ProhibitedTaxShelterTransInd | 0 | 0 |
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| IRS990PF/StatementsRegardingActy4720Grp/TransactionsFailToQlfyAsExcInd | 0 | 0 |
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