Liabilities / Assets
4th percentile
Tied with the lowest-debt nonprofits in its peer group.
EIN 87-1701363 • 501(c)3 • Bronx, NY
Profile
Operate exclusively for the benefit of, to perform the functions of, or to carry out the purposes of, the wildlife conservation society and the international primate protection league.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
4th percentile
Tied with the lowest-debt nonprofits in its peer group.
Liabilities / Revenue
5th percentile
Tied with the lowest-debt nonprofits in its peer group.
Net Margin
5th percentile
Higher net margin than 5% of similar nonprofits.
Top Officer Pay
94th percentile
Higher top officer pay than 94% of similar nonprofits.
Top officer pay equals 35.3% of source-year revenue.
Asset Growth
35th percentile
Faster asset growth than 35% of similar nonprofits.
Revenue Growth
42nd percentile
Faster revenue growth than 42% of similar nonprofits.
Assets
Up$48,796,350
Up $665,665 (+1.4%) from 2023
Liabilities
Flat$0
Flat from 2023
Net Assets
Up$48,796,350
Up $665,665 (+1.4%) from 2023
Revenue
Up$3,125,703
Up $132,086 (+4.4%) from 2023
Expenses
Up$4,816,230
Up $4,502,447 (+1435%) from 2023
Net Income
Down-$1,690,527
Down $4,370,361 (-163%) from 2023
Most recent year
2024 • Form 990Facts available. Structured filing facts are available, but richer extracted sections are limited.
Operate exclusively for the benefit of, to perform the functions of, or to carry out the purposes of, the wildlife conservation society and the international primate protection league.
Support wildlife conservation society and the international primate protection league
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Rtn Earn Endowment Incm Other Fnds | $48,130,685 | $48,796,350 | ▲ $665,665 |
| Investments in Publicly Traded Securities | $46,422,794 | $38,072,302 | ▼ $8,350,492 |
| Savings and Temporary Cash Investments | $1,707,891 | $10,724,048 | ▲ $9,016,157 |
| Pd in Cap Srpls Land Bldg Eqp Fund | $0 | $0 | → $0 |
| Cap Stk Tr Prin Current Funds | $0 | $0 | → $0 |
| Total Assets | $48,130,685 | $48,796,350 | ▲ $665,665 |
| Liabilities | |||
| Total Liabilities | $0 | $0 | → $0 |
| Net Assets / Fund Balance | |||
| Total Net Assets Fund Balance | $48,130,685 | $48,796,350 | ▲ $665,665 |
| Total Liabilities and Net Assets / Fund Balance | $48,130,685 | $48,796,350 | ▲ $665,665 |
| Period | Beginning | Contrib. | Gain/Loss | Other Uses | End |
|---|---|---|---|---|---|
| 2024 | $48,130,685 | $1,000,000 | ▲ $4,481,895 | - | $48,796,350 |
| 2023 | $46,648,893 | $1,500,000 | ▲ $295,575 | - | $48,130,685 |
| 2022 | $45,899,257 | $6,846 | ▲ $1,100,404 | - | $46,648,893 |
| 2021 | $0 | $46,785,133 | ▼ $620,418 | - | $45,899,257 |
| Name | Title |
|---|---|
| Frances Spivy-weber | Director |
| Ruth Norris | Director |
| Laura Stolzenthaler | Director & Treasurer (beg. 4/8) |
| Christopher J Mckenzie | Secretary & Director |
| Robert Menzi | Treas (end 4/7), Dir, Pres (beg 4/8) |
| Contractor | Services | Location | Compensation |
|---|---|---|---|
| Morgan Stanley | Investment Management | 1775 I STREET NW SUITE 200, Washington, DC 20006 | $205,095 |
| Line Item | Amount |
|---|---|
| Grants and Similar Amounts Paid | $4,577,157 |
| Other Expenses | $239,073 |
| Professional Fundraising Fees | $0 |
| Salaries, Compensation, and Employee Benefits | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Grants to Domestic Orgs | $4,577,157 | - | - | $4,577,157 |
| Fees for Service Investment Mgmnt Fees | - | $205,095 | - | $205,095 |
| Fees for Services Legal | - | $18,248 | - | $18,248 |
| Fees for Services Accounting | - | $15,620 | - | $15,620 |
| Fees for Services Other | - | $110 | - | $110 |
| Total Functional Expenses | $4,577,157 | $239,073 | $0 | $4,816,230 |
| Recipient | Location | Category | Purpose | Amount |
|---|---|---|---|---|
| Wildlife Conservation Society | Bronx, NY | 501(c)(3) | General Operating | $4,577,157 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
“Organization members per the organization's bylaws, the corporation shall have one class of voting members (the "members") within the meaning of the general corporation law, and the initial member shall be wcs.”
“Organization member powers per the organization's bylaws, wcs has the power to fill board vacancies. Wcs also has the power to remove a majority of directors at any time, with or without cause.”
“Form 990 review the form 990 is prepared by external tax advisors. Prior to filing, the form 990 is reviewed by the officers and directors of the henry l heymann wildlife preservation foundation.”
“Compensation process robert menzi, foundation president & director; christopher j. Mckenzie, foundation officer & director; and laura stolzenthaler, foundation officer & director, were employed by wcs, a related organization, in 2024. Wcs has compensation setting policies and procedures in place for each individual which meet the rebuttable presumption of reasonableness.”
“Document disclosure the form 990 is made available to the general public upon request.”
“Use of endowment funds the organization intends to use funds to support wcs and ippl.”
“Uncertain tax positions the foundation recognizes the benefit of tax positions when it is more-likely than-not that the position will be sustainable based on the merits of the position. There are certain transactions which could be deemed unrelated business income and would result in a tax liability. Management reviews transactions to estimate the potential tax liabilities using a threshold of more-likely than-not of being sustained. It is management's estimation that there are no material tax liabilities that need to be recorded.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | SUPPORT WILDLIFE CONSERVATION SOCIETY AND THE INTERNATIONAL PRIMATE PROTECTION LEAGUE |
| IRS990/AllOtherContributionsAmt | 0 | 1000000 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | CHRISTOPHER MCKENZIE |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 7182206850 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 2300 SOUTHERN BOULEVARD |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | BRONX |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | NY |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 10460 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CapStkTrPrinCurrentFundsGrp/BOYAmt | 0 | 0 |
| IRS990/CapStkTrPrinCurrentFundsGrp/EOYAmt | 0 | 0 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 1 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 0 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 1 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 205095 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 1775 I STREET NW SUITE 200 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | WASHINGTON |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | DC |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 20006 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | MORGAN STANLEY |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | INVESTMENT MANAGEMENT |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 1000000 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 4577157 |
| IRS990/CYInvestmentIncomeAmt | 0 | 2125703 |
| IRS990/CYOtherExpensesAmt | 0 | 239073 |
| IRS990/CYOtherRevenueAmt | 0 | 0 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | -1690527 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/CYTotalExpensesAmt | 0 | 4816230 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 3125703 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/Desc | 0 | SUPPORT WILDLIFE CONSERVATION SOCIETY (WCS) AND THE INTERNATIONAL PRIMATE PROTECTION LEAGUE (IPPL). |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 0 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 1 |
| IRS990/ElectionOfBoardMembersInd | 0 | 1 |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 4577157 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 15620 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 15620 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 18248 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 18248 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 110 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 110 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 205095 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 205095 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 1 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 2 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 3 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 4 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 114699 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 283650 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 66862 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | FRANCES SPIVY-WEBER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | CHRISTOPHER J MCKENZIE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | RUTH NORRIS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | ROBERT MENZI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | LAURA STOLZENTHALER |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 434752 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 820740 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 367014 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | SECRETARY & DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | TREAS (END 4/7), DIR, PRES (BEG 4/8) |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | DIRECTOR & TREASURER (BEG. 4/8) |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/Form990TFiledInd | 0 | 1 |
| IRS990/FormationYr | 0 | 2021 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/ConsolidatedBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 427706 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 5 |
| IRS990/GrantAmt | 0 | 4577157 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 4577157 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 4577157 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 1 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 25733821 |
| IRS990/GrossReceiptsAmt | 0 | 28431818 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 0 |
| IRS990/IndependentVotingMemberCnt | 0 | 2 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 1704903 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 1697997 |
| IRS990/InvestmentIncomeGrp/UnrelatedBusinessRevenueAmt | 0 | -6906 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 46422794 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 38072302 |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LegalDomicileStateCd | 0 | DE |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 25306115 |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 1 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | OPERATE EXCLUSIVELY FOR THE BENEFIT OF, TO PERFORM THE FUNCTIONS OF, OR TO CARRY OUT THE PURPOSES OF, THE WILDLIFE CONSERVATION SOCIETY AND THE INTERNATIONAL PRIMATE PROTECTION LEAGUE. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 48130685 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 48796350 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | 427706 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 427706 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 2356192 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrgDoesNotFollowFASB117Ind | 0 | X |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PdInCapSrplsLandBldgEqpFundGrp/BOYAmt | 0 | 0 |
| IRS990/PdInCapSrplsLandBldgEqpFundGrp/EOYAmt | 0 | 0 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrincipalOfficerNm | 0 | LAURA STOLZENTHALER |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 1500000 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 50000 |
| IRS990/PYInvestmentIncomeAmt | 0 | 1493617 |
| IRS990/PYOtherExpensesAmt | 0 | 263783 |
| IRS990/PYOtherRevenueAmt | 0 | 0 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 2679834 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/PYTotalExpensesAmt | 0 | 313783 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 2993617 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | -1690527 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 0 |
| IRS990/RelatedEntityInd | 0 | 1 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 0 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 0 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RtnEarnEndowmentIncmOthFndsGrp/BOYAmt | 0 | 48130685 |
| IRS990/RtnEarnEndowmentIncmOthFndsGrp/EOYAmt | 0 | 48796350 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 1707891 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 10724048 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/Contribution35ControlledInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ContributionControllerInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ContributionFamilyInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ControlledDisqualifiedPrsnInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/DisqualifiedPrsnControllIntInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/DisqualifiedPrsnOwnrIntInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ExcessBusinessHoldingsRulesInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ListedByNameGoverningDocInd | 0 | 1 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/LoanDisqualifiedPersonInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/OrganizationChangeSuprtOrgInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/PaymentSubstantialContribtrInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SupportedOrgNotOrganizedUSInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SupportedOrgSectionC456Ind | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SupportNonSupportedOrgInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SuprtOrgNoIRSDeterminationInd | 0 | 0 |
| IRS990ScheduleA/Form990SchAType1SuprtOrgGrp/OperateBenefitNonSuprtOrgInd | 0 | 1 |
| IRS990ScheduleA/Form990SchAType1SuprtOrgGrp/PowerAppointMajorityDirTrstInd | 0 | 1 |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/ExplanationTxt | 0 | THE ORGANIZATION SUPPORTS WCS AND IPPL, AND WCS IS THE CONTROLLING SUPPORTED ORGANIZATION. |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/FormAndLineReferenceDesc | 0 | SECTION B, LINE 2: |
| IRS990ScheduleA/IRSWrittenDeterminationInd | 0 | X |
| IRS990ScheduleA/OtherSupportSumAmt | 0 | 0 |
| IRS990ScheduleA/SupportedOrganizationsCnt | 0 | 2 |
| IRS990ScheduleA/SupportedOrganizationsTotalCnt | 0 | 2 |
| IRS990ScheduleA/SupportedOrgInformationGrp/EIN | 0 | 131740011 |
| IRS990ScheduleA/SupportedOrgInformationGrp/EIN | 1 | 510194013 |
| IRS990ScheduleA/SupportedOrgInformationGrp/GoverningDocumentListedInd | 0 | 1 |
| IRS990ScheduleA/SupportedOrgInformationGrp/GoverningDocumentListedInd | 1 | 1 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OrganizationTypeCd | 0 | 7 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OrganizationTypeCd | 1 | 10 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OtherSupportAmt | 0 | 0 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OtherSupportAmt | 1 | 0 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportAmt | 0 | 4577157 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportAmt | 1 | 0 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportedOrganizationName/BusinessNameLine1Txt | 0 | WILDLIFE CONSERVATION SOCIETY |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportedOrganizationName/BusinessNameLine1Txt | 1 | INTERNATIONAL PRIMATE PROTECTION LEAGUE |
| IRS990ScheduleA/SupportingOrganization509a3Ind | 0 | X |
| IRS990ScheduleA/SupportingOrgType1Ind | 0 | X |
| IRS990ScheduleA/SupportSumAmt | 0 | 4577157 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine2 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/State | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 0 | RESTRICTED |
| IRS990/ScheduleBRequiredInd | 0 | 1 |
| IRS990ScheduleD/CYEndwmtFundGrp/AdministrativeExpensesAmt | 0 | 239073 |
| IRS990ScheduleD/CYEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 48130685 |
| IRS990ScheduleD/CYEndwmtFundGrp/ContributionsAmt | 0 | 1000000 |
| IRS990ScheduleD/CYEndwmtFundGrp/EndYearBalanceAmt | 0 | 48796350 |
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| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 45899257 |
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| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 0 | USE OF ENDOWMENT FUNDS THE ORGANIZATION INTENDS TO USE FUNDS TO SUPPORT WCS AND IPPL. |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 1 | UNCERTAIN TAX POSITIONS THE FOUNDATION RECOGNIZES THE BENEFIT OF TAX POSITIONS WHEN IT IS MORE-LIKELY THAN-NOT THAT THE POSITION WILL BE SUSTAINABLE BASED ON THE MERITS OF THE POSITION. THERE ARE CERTAIN TRANSACTIONS WHICH COULD BE DEEMED UNRELATED BUSINESS INCOME AND WOULD RESULT IN A TAX LIABILITY. MANAGEMENT REVIEWS TRANSACTIONS TO ESTIMATE THE POTENTIAL TAX LIABILITIES USING A THRESHOLD OF MORE-LIKELY THAN-NOT OF BEING SUSTAINED. IT IS MANAGEMENT'S ESTIMATION THAT THERE ARE NO MATERIAL TAX LIABILITIES THAT NEED TO BE RECORDED. |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART V, LINE 4: |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | PART X, LINE 2: |
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| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/PersonNm | 1 | CHRISTOPHER J MCKENZIE |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/PersonNm | 2 | LAURA STOLZENTHALER |
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| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TitleTxt | 1 | SECRETARY & DIRECTOR |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TitleTxt | 2 | DIRECTOR & TREASURER (BEG. 4/8) |
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| IRS990ScheduleJ/SupplementalInformationDetail/ExplanationTxt | 0 | HOUSING ALLOWANCE FOUNDATION PRESIDENT & DIRECTOR ROBERT MENZI RECEIVES A TAXABLE HOUSING ALLOWANCE WHICH IS INCLUDED IN OTHER REPORTABLE COMPENSATION IN PART II, COLUMN (B)(III). |
| IRS990ScheduleJ/SupplementalInformationDetail/ExplanationTxt | 1 | SCHEDULE J, PART I, LINE 4B NONQUALIFIED RETIREMENT PLAN FOUNDATION PRESIDENT & DIRECTOR ROBERT MENZI AND FOUNDATION DIRECTORS CHRISTOPHER J. MCKENZIE AND LAURA STOLZENTHALER WERE EMPLOYEED BY WCS, A RELATED ORGANIZATION, IN 2024. WCS HAS ESTABLISHED SUPPLEMENTAL NON-QUALIFIED RETIREMENT PLANS TO PROVIDE RETIREMENT BENEFITS TO EXECUTIVES WHICH WOULD OTHERWISE BE LOST DUE TO STATUTORY LIMITATIONS AND FOR THE PURPOSE OF RETAINING TALENT. FOR RETENTION PURPOSES, THESE PLANS ARE PAYABLE ON VARIOUS PRE-DETERMINED VESTING DATES SET FOR EACH PARTICIPANT. PAYMENT IS SUBJECT TO THE ACHIEVEMENT OF CERTAIN SERVICE REQUIREMENTS PROVIDED THAT THE INDIVIDUAL IS EMPLOYED BY WCS THROUGH THE VESTING DATE OR IN CERTAIN OTHER LIMITED CIRCUMSTANCES. ANY PAYMENTS FOR COMPENSATION UNDER MULTI-YEAR SUPPLEMENTAL NON-QUALIFIED COMPENSATION PLANS WHICH VESTED ARE REPORTED IN COLUMN (B)(III). THESE PAYMENTS WERE REPORTED AS TAXABLE INCOME ON THE EMPLOYEE'S W-2 FOR 2024. FOR ROBERT MENZI, THE PAYMENT WAS $111,398 OF WHICH $111,398 WAS REPORTED IN PRIOR YEARS. FURTHER, THE ESTIMATED ACCRUALS NOT YET VESTED ARE A COMPONENT OF DEFERRED COMPENSATION REPORTED IN COLUMN (C). FOR ROBERT MENZI, THE 2024 DEFERRED AMOUNT WAS $151,436. THE DEFERRED AMOUNT FOR CHRISTOPHER J. MCKENZIE WAS $3,740. THE DEFERRED AMOUNT FOR LAURA STOLZENTHALER WAS $(3,894). COLUMN (C) ALSO INCLUDES THE ESTIMATED PRESENT VALUE OF ACCRUED QUALIFIED PENSION BENEFIT EARNED IN CALENDAR YEAR 2024 FOR EACH INDIVIDUAL. |
| IRS990ScheduleJ/SupplementalInformationDetail/ExplanationTxt | 2 | SCHEDULE J, PART I, LINE 7 NON-FIXED PAYMENT ROBERT MENZI RECEIVED NON-FIXED PAYMENTS IN 2024. THESE WERE ONE-TIME DISCRETIONARY BONUSES IN RECOGNITION OF EXTRAORDINARY ACCOMPLISHMENTS DURING THE PRIOR YEAR. THE PAYMENTS WERE REPORTED AS TAXABLE INCOME ON THE EMPLOYEE'S 2024 W-2. SCHEDULE J, PART II ROBERT MENZI, FOUNDATION PRESIDENT & DIRECTOR; CHRISTOPHER J. MCKENZIE, FOUNDATION OFFICER & DIRECTOR; AND LAURA STOLZENTHALER, FOUNDATION OFFICER & DIRECTOR, WERE EMPLOYED BY WCS, A RELATED ORGANIZATION, IN 2024. WCS HAS COMPENSATION SETTING POLICIES AND PROCEDURES IN PLACE FOR EACH INDIVIDUAL WHICH MEET THE REBUTTABLE PRESUMPTION OF REASONABLENESS. |
| IRS990ScheduleJ/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART I, LINE 1A |
| IRS990ScheduleJ/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | PART I, LINE 4B |
| IRS990ScheduleJ/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | PART I, LINE 7 |
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| IRS990ScheduleJ/WrittenPolicyRefTAndEExpnssInd | 0 | 1 |
| IRS990/ScheduleORequiredInd | 0 | 1 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | ORGANIZATION MEMBERS PER THE ORGANIZATION'S BYLAWS, THE CORPORATION SHALL HAVE ONE CLASS OF VOTING MEMBERS (THE "MEMBERS") WITHIN THE MEANING OF THE GENERAL CORPORATION LAW, AND THE INITIAL MEMBER SHALL BE WCS. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | ORGANIZATION MEMBER POWERS PER THE ORGANIZATION'S BYLAWS, WCS HAS THE POWER TO FILL BOARD VACANCIES. WCS ALSO HAS THE POWER TO REMOVE A MAJORITY OF DIRECTORS AT ANY TIME, WITH OR WITHOUT CAUSE. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | FORM 990 REVIEW THE FORM 990 IS PREPARED BY EXTERNAL TAX ADVISORS. PRIOR TO FILING, THE FORM 990 IS REVIEWED BY THE OFFICERS AND DIRECTORS OF THE HENRY L HEYMANN WILDLIFE PRESERVATION FOUNDATION. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | COMPENSATION PROCESS ROBERT MENZI, FOUNDATION PRESIDENT & DIRECTOR; CHRISTOPHER J. MCKENZIE, FOUNDATION OFFICER & DIRECTOR; AND LAURA STOLZENTHALER, FOUNDATION OFFICER & DIRECTOR, WERE EMPLOYED BY WCS, A RELATED ORGANIZATION, IN 2024. WCS HAS COMPENSATION SETTING POLICIES AND PROCEDURES IN PLACE FOR EACH INDIVIDUAL WHICH MEET THE REBUTTABLE PRESUMPTION OF REASONABLENESS. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 4 | DOCUMENT DISCLOSURE THE FORM 990 IS MADE AVAILABLE TO THE GENERAL PUBLIC UPON REQUEST. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | FORM 990, PART VI, SECTION A, LINE 6 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | FORM 990, PART VI, SECTION A, LINE 7A |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | FORM 990, PART VI, SECTION B, LINE 11B |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | FORM 990, PART VI, SECTION B, LINE 15 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 4 | FORM 990, PART VI, SECTION C, LINE 19 |
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| IRS990ScheduleR/AssetSaleToOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/DivRelatedOrganizationInd | 0 | 0 |
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| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DisregardedEntityName/BusinessNameLine1Txt | 1 | INTERNATIONAL PRIMATE PROTECTION LEAGUE |
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| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/ExemptCodeSectionTxt | 1 | 501(C)(3) |
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