Liabilities / Assets
3rd percentile
Tied with the lowest-debt nonprofits in its peer group.
EIN 04-2781368 • 501(c)3 • Boston, MA
Profile
Longwood Research Institute, Inc. works to promote and expand human knowledge in the field of medical science, public health and the health and welfare of infants, children, adolescents and adults by directly engaging in the continuous active conduct of medical and other scientific research by means of investigations, experiments, and studies within the associated disciplines spanning the medical sciences to discover, develop, verify or clarify knowledge and understanding. It also holds, owns, maintains, improves, and operates real property for the benefit of The Children's Hospital Corporation.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
3rd percentile
Tied with the lowest-debt nonprofits in its peer group.
Liabilities / Revenue
4th percentile
Tied with the lowest-debt nonprofits in its peer group.
Net Margin
94th percentile
Higher net margin than 94% of similar nonprofits.
Top Officer Pay
98th percentile
Higher top officer pay than 98% of similar nonprofits.
Top officer pay equals 247.9% of source-year revenue.
Asset Growth
31st percentile
Faster asset growth than 31% of similar nonprofits.
Revenue Growth
6th percentile
Faster revenue growth than 6% of similar nonprofits.
Assets
Up$82,512,864
Up $849,444 (+1.0%) from 2023
Liabilities
Flat$0
Flat from 2023
Net Assets
Up$82,512,864
Up $849,444 (+1.0%) from 2023
Revenue
Down$1,290,000
Down $686,400 (-35%) from 2023
Expenses
Down$440,556
Down $127,765 (-22%) from 2023
Net Income
Down$849,444
Down $558,635 (-40%) from 2023
Most recent year
2024 • Form 990Facts available. Structured filing facts are available, but richer extracted sections are limited.
Longwood Research Institute, Inc. works to promote and expand human knowledge in the field of medical science, public health and the health and welfare of infants, children, adolescents and adults by directly engaging in the continuous active conduct of medical and other scientific research by means of investigations, experiments, and studies within the associated disciplines spanning the medical sciences to discover, develop, verify or clarify knowledge and understanding. It also holds, owns, maintains, improves, and operates real property for the benefit of The Children's Hospital Corporation.
Expands medical science knowledge through research and holds real estate property.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Land, Buildings, and Equipment, Net | $73,083,351 | $73,779,362 | ▲ $696,011 |
| Total Assets | $81,663,420 | $82,512,864 | ▲ $849,444 |
| Other Assets Total | $8,580,069 | $8,733,502 | ▲ $153,433 |
| Liabilities | |||
| Total Liabilities | $0 | $0 | → $0 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $81,663,420 | $82,512,864 | ▲ $849,444 |
| Total Net Assets Fund Balance | $81,663,420 | $82,512,864 | ▲ $849,444 |
| Total Liabilities and Net Assets / Fund Balance | $81,663,420 | $82,512,864 | ▲ $849,444 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Land | $6,727,038 | - | $6,727,038 |
| Other Land Buildings | $67,052,324 | - | - |
| Other Assets Org | $8,733,502 | - | - |
| Name | Title |
|---|---|
| Douglas Berthiaume | Chairman |
| Sandra Fenwick | Former President & Trustee |
| Kevin Churchwell MD | President & Trustee |
| Christopher Viney JD | Clerk & Trustee (BEGIN 10/16/23) |
| Michele Garvin Esq | Clerk & Trustee (END 10/16/23) |
| Douglas Vanderslice | Treasurer & Trustee |
| Line Item | Amount |
|---|---|
| Other Expenses | $440,556 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Salaries, Compensation, and Employee Benefits | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Occupancy | $404,025 | - | - | $404,025 |
| Fees for Services Legal | - | $31,601 | - | $31,601 |
| Fees for Services Other | - | $3,950 | - | $3,950 |
| Office Expenses | - | $980 | - | $980 |
| Total Functional Expenses | $404,025 | $36,531 | $0 | $440,556 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
“Children's Medical Center Corporation is the sole member of the organization.”
“The Children's Medical Center Corporation, as the sole member of the organization, elects the governing body of the organization.”
“Children's Medical Center Corporation is the sole member of the organization. As stated in the organization's By Laws, Children's Medical Center Corporation has the powers and rights: (1) to approve the annual operating and capital budgets of the Corporation; (2) to approve capital expenditures by the Corporation in excess of $150,000; (3) to approve long-range planning goals and objectives of the Corporation; (4) to approve the sale of any major portion of the Corporation's assets; (5) to approve the initiation of any fund raising program by the Corporation; (6) to approve the revision of policies with respect to personnel, public relations, fringe benefits or insurance by the Corporation; (7) to approve any new contracts by the Corporation with officers or key management personnel; (8) to approve any substantial increase by the Corporation in the compensation of employees or officers; (9) to approve any lease of equipment or real estate by the Corporation; (10) to approve any change in insurance coverage by the Corporation, whether malpractice, property, director/officer or otherwise; (11) to approve any incurrence of long-term indebtedness by the Corporation; (12) to approve any change in independent certified public accountants by the Corporation; (13) to approve any change in accounting practice by the Corporation; (14) to approve any change in bank accounts by the Corporation or persons authorized to sign checks on such accounts; (15) to approve any contracts involving an annual payment of more than $5,000 by the Corporation; (16) to approve any major change in significant suppliers; (17) to approve the entry into any new line of business by the Corporation.”
“The Form 990 tax return was prepared by the Children's Hospital staff and reviewed by the Chief Financial Officer & General Counsel, along with the outside accounting firm of Ernst & Young. A copy was made available to the Board prior to filing.”
“Longwood Research Institute, Inc. adopts the Conflict of Interest Policy in the form adopted and maintained by the Children's Hospital Corporation, as from time to time in effect. The Organization's Conflict of Interest and Commitment policy applies to all trustees, Trust Board members, members of the medical or research staff, faculty, fellow, resident, student, visiting faculty or scientist, consultant, volunteers and employees of the Hospital. Trustees, chiefs of service and division chiefs, senior directors and others who exercise influence over important strategic, business and purchasing decisions of the Hospital are required to complete an annual conflict of interest disclosure questionnaire about their financial interests and outside activities. If an expected questionnaire is not returned, the Compliance Officer notifies the individual's supervisor or the CEO or COO, and repeated requests for the completed questionnaire are made until the questionnaire is completed. Responses are reviewed by the Compliance Officer and any potential conflicts are discussed with the Office of General Counsel and/or the individual's supervisor; any actual or potential conflicts are managed by termination of the conflict, management of the conflict, recusal, disclosure, review, or a combination thereof. Outside interests and outside activities may be permitted as long as the Hospital, Medical Center or Trust determines that such interests and activities are consistent with the policies of the Hospital, Medical Center or Trust and the Hospital, Medical Center or Trust Board member, medical staff member or employee involved does the following: 1. discloses the fact that he/she has a financial interest or a consultative role in or with a person or company with which the Hospital, Medical Center or Trust is doing or is thinking of doing business; and 2. refrains from voting or exercising any personal influence whatsoever in the selection of a person or company to do business with the Hospital, Medical Center or Trust with whom or in which he/she has a financial interest or a consultative role; and 3. avoids any active participation in any financial negotiations between the Hospital, Medical Center or Trust and the person or company with whom or in which he/she has a financial interest or consultative role; and 4. does not permit such outside interests or activities to absorb such amounts of his/her time and effort as to make it impractical for them to fulfill their assigned responsibilities at the Hospital, Medical Center or Trust; and 5. does not permit such outside interests or activities to compromise or appear to compromise the name or reputation of the Hospital, Medical Center or Trust.”
“The organization does not have any employees and does not compensate its Trustees or Officers of the Board.”
“Longwood Research Institute, Inc. adopts the Code of Conduct, Conflict of Interest Policy, and the Compliance Manual, in the form adopted and maintained by the Children's Hospital Corporation, as from time to time in effect. Children's Hospital posts its Code of Conduct (which incorporates the Conflict of Interest Policy) and its Compliance Manual (which includes a summary of the Conflict of Interest Policy) on its external website and these are also available from the Compliance Office or the Office of General Counsel. Governing documents are not posted publicly but are available from the Hospital upon request and are also filed with the Massachusetts Secretary of State, where they are available to the public. Financial statements are available upon request.”
“The individuals, who have compensation from related organizations, listed in Column E, spend the remainder of their full time hours working for Children's Medical Center and its other affiliates.”
“The filing organization has one independent member of the governing body. The other members of the governing body are compensated by a related organization. However, the filing organization is part of an integrated delivery system of organizations, including Children's Hospital that has community boards. There has been no material change in the structure of the governing body since it applied for and received recognition of exempt status.”
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 | Expands medical science knowledge through research and holds real estate property. |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | Doug Vanderslice - Treasurer |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 6173556000 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 300 Longwood Avenue |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | Boston |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 02115 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| 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/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 0 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 0 |
| IRS990/CYOtherExpensesAmt | 0 | 440556 |
| IRS990/CYOtherRevenueAmt | 0 | 0 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 1290000 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 849444 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/CYTotalExpensesAmt | 0 | 440556 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 1290000 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 1 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/Desc | 0 | Longwood Research Institute, Inc. works to promote and expand human knowledge in the field of medical science, public health and the health and welfare of infants, children, adolescents and adults by directly engaging in the continuous active conduct of medical and other scientific research by means of investigations, experiments, and studies within the associated disciplines spanning the medical sciences to discover, develop, verify or clarify knowledge and understanding. It also holds, owns, maintains, improves, and operates real property for the benefit of The Children's Hospital Corporation. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 1 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 1 |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 404025 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 31601 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 31601 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 3950 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 3950 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 55.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 1 | 55.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 2 | 55.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 3 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 4 | 55.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 5 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/FormerOfcrDirectorTrusteeInd | 0 | X |
| 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/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 135259 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 80122 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 53172 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 20376 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | Kevin Churchwell MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | Douglas Vanderslice |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | Michele Garvin Esq |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | Douglas Berthiaume |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | Christopher Viney JD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | Sandra Fenwick |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 3062633 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 1604073 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 1201614 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 174862 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 939289 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | President & Trustee |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | Treasurer & Trustee |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | Clerk & Trustee (END 10/16/23) |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | Chairman |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | Clerk & Trustee (BEGIN 10/16/23) |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | Former President & Trustee |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1982 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 1 |
| IRS990/FSAuditedBasisGrp/ConsolidatedBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 4 |
| IRS990/GrantAmt | 0 | 0 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 1290000 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 0 |
| IRS990/IndependentVotingMemberCnt | 0 | 1 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 0 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 73083351 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 73779362 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 73779362 |
| IRS990/LegalDomicileStateCd | 0 | MA |
| 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 | Longwood Research Institute, Inc. works to promote and expand human knowledge in the field of medical science, public health and the health and welfare of infants, children, adolescents and adults by directly engaging in the continuous active conduct of medical and other scientific research by means of investigations, experiments, and studies within the associated disciplines spanning the medical sciences to discover, develop, verify or clarify knowledge and understanding. It also holds, owns, maintains, improves, and operates real property for the benefit of The Children's Hospital Corporation. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 81663420 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 82512864 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 81663420 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 82512864 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 404025 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 404025 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 980 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 980 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 8580069 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 8733502 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrincipalOfficerNm | 0 | Kevin B Churchwell MD |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 531190 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | Parking Income |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 1290000 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 1290000 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 0 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/PYInvestmentIncomeAmt | 0 | 0 |
| IRS990/PYOtherExpensesAmt | 0 | 568321 |
| IRS990/PYOtherRevenueAmt | 0 | 0 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 1976400 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 1408079 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/PYTotalExpensesAmt | 0 | 568321 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 1976400 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 849444 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 1 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |
| IRS990/ReportOtherAssetsInd | 0 | 1 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 0 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RevenueAmt | 0 | 1290000 |
| 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/Form990ScheduleAPartVIGrp/ExplanationTxt | 0 | Non monetary support was provided, however; the filing organization provides services of renting and holding property for the benefit of Children's Hospital Corporation and its affiliated organizations. |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/ExplanationTxt | 1 | Although there is not a majority overlap between the Board of Trustees of Longwood Research Institute and its supported organization (Children's Hospital Corporation), there exists common supervision/control between Longwood Research Institute and its supported organization in that both organizations share a President, Treasurer, Clerk and Board Chairman. While there is not technically a majority overlap between Longwood Research Institute and Children's Hospital Corporation, due to the amount of board members, the supported organization is able to ensure the supporting organization (Longwood Research Institute) is responsive to its needs through this common supervision/control. Therefore, Longwood Research Institute qualifies as a Type II supporting organization. |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/FormAndLineReferenceDesc | 0 | Part I, Line 12g |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/FormAndLineReferenceDesc | 1 | Schedule A, Part IV, Section C, Line 1 |
| IRS990ScheduleA/MajorityDirTrstSupportedOrgInd | 0 | 0 |
| IRS990ScheduleA/OtherSupportSumAmt | 0 | 404025 |
| IRS990ScheduleA/SupportedOrganizationsCnt | 0 | 1 |
| IRS990ScheduleA/SupportedOrganizationsTotalCnt | 0 | 1 |
| IRS990ScheduleA/SupportedOrgInformationGrp/EIN | 0 | 042774441 |
| IRS990ScheduleA/SupportedOrgInformationGrp/GoverningDocumentListedInd | 0 | 1 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OrganizationTypeCd | 0 | 3 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OtherSupportAmt | 0 | 404025 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportAmt | 0 | 0 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportedOrganizationName/BusinessNameLine1Txt | 0 | Children's Hospital Corporation |
| IRS990ScheduleA/SupportingOrganization509a3Ind | 0 | X |
| IRS990ScheduleA/SupportingOrgType2Ind | 0 | X |
| IRS990ScheduleA/SupportSumAmt | 0 | 0 |
| IRS990/ScheduleBRequiredInd | 0 | 0 |
| IRS990ScheduleD/LandGrp/BookValueAmt | 0 | 6727038 |
| IRS990ScheduleD/LandGrp/OtherCostOrOtherBasisAmt | 0 | 6727038 |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 0 | 8733502 |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 0 | Due from Children's Medical Center |
| IRS990ScheduleD/OtherLandBuildingsGrp/BookValueAmt | 0 | 67052324 |
| IRS990ScheduleD/OtherLandBuildingsGrp/InvestmentCostOrOtherBasisAmt | 0 | 67052324 |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 73779362 |
| IRS990ScheduleD/TotalBookValueOtherAssetsAmt | 0 | 8733502 |
| IRS990ScheduleJ/AnyNonFixedPaymentsInd | 0 | 0 |
| IRS990ScheduleJ/CompBasedOnRevenueOfFlngOrgInd | 0 | 0 |
| IRS990ScheduleJ/CompBsdNetEarnsFlngOrgInd | 0 | 0 |
| IRS990ScheduleJ/CompBsdNetEarnsRltdOrgsInd | 0 | 0 |
| IRS990ScheduleJ/CompBsdOnRevRelatedOrgsInd | 0 | 0 |
| IRS990ScheduleJ/EquityBasedCompArrngmInd | 0 | 0 |
| IRS990ScheduleJ/InitialContractExceptionInd | 0 | 0 |
| IRS990/ScheduleJRequiredInd | 0 | 1 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BaseCompensationFilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BaseCompensationFilingOrgAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BaseCompensationFilingOrgAmt | 2 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BaseCompensationFilingOrgAmt | 3 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BaseCompensationFilingOrgAmt | 4 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusFilingOrganizationAmount | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusFilingOrganizationAmount | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusFilingOrganizationAmount | 2 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusFilingOrganizationAmount | 3 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusFilingOrganizationAmount | 4 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusRelatedOrganizationsAmt | 0 | 927675 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusRelatedOrganizationsAmt | 1 | 353818 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusRelatedOrganizationsAmt | 2 | 270589 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusRelatedOrganizationsAmt | 3 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusRelatedOrganizationsAmt | 4 | 60000 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompensationBasedOnRltdOrgsAmt | 0 | 1575560 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompensationBasedOnRltdOrgsAmt | 1 | 902247 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompensationBasedOnRltdOrgsAmt | 2 | 768780 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompensationBasedOnRltdOrgsAmt | 3 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompensationBasedOnRltdOrgsAmt | 4 | 114425 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990FilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990FilingOrgAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990FilingOrgAmt | 2 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990FilingOrgAmt | 3 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990FilingOrgAmt | 4 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990RltdOrgsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990RltdOrgsAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990RltdOrgsAmt | 2 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990RltdOrgsAmt | 3 | 939289 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990RltdOrgsAmt | 4 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompensationFlngOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompensationFlngOrgAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompensationFlngOrgAmt | 2 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompensationFlngOrgAmt | 3 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompensationFlngOrgAmt | 4 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompRltdOrgsAmt | 0 | 29700 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompRltdOrgsAmt | 1 | 29700 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompRltdOrgsAmt | 2 | 29700 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompRltdOrgsAmt | 3 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompRltdOrgsAmt | 4 | 18616 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsFilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsFilingOrgAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsFilingOrgAmt | 2 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsFilingOrgAmt | 3 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsFilingOrgAmt | 4 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsRltdOrgsAmt | 0 | 105559 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsRltdOrgsAmt | 1 | 50422 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsRltdOrgsAmt | 2 | 23472 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsRltdOrgsAmt | 3 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsRltdOrgsAmt | 4 | 1760 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/OtherCompensationFilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/OtherCompensationFilingOrgAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/OtherCompensationFilingOrgAmt | 2 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/OtherCompensationFilingOrgAmt | 3 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/OtherCompensationFilingOrgAmt | 4 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/OtherCompensationRltdOrgsAmt | 0 | 559398 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/OtherCompensationRltdOrgsAmt | 1 | 348008 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/OtherCompensationRltdOrgsAmt | 2 | 162245 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/OtherCompensationRltdOrgsAmt | 3 | 939289 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/OtherCompensationRltdOrgsAmt | 4 | 437 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/PersonNm | 0 | Kevin Churchwell MD |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/PersonNm | 1 | Douglas Vanderslice |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/PersonNm | 2 | Michele Garvin Esq |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/PersonNm | 3 | Sandra Fenwick |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/PersonNm | 4 | Christopher Viney JD |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TitleTxt | 0 | President & Trustee |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TitleTxt | 1 | Treasurer & Trustee |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TitleTxt | 2 | Clerk & Trustee (END 10/16/23) |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TitleTxt | 3 | Former President & Trustee |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TitleTxt | 4 | Clerk & Trustee (BEGIN 10/16/23) |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TotalCompensationFilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TotalCompensationFilingOrgAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TotalCompensationFilingOrgAmt | 2 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TotalCompensationFilingOrgAmt | 3 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TotalCompensationFilingOrgAmt | 4 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TotalCompensationRltdOrgsAmt | 0 | 3197892 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TotalCompensationRltdOrgsAmt | 1 | 1684195 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TotalCompensationRltdOrgsAmt | 2 | 1254786 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TotalCompensationRltdOrgsAmt | 3 | 939289 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TotalCompensationRltdOrgsAmt | 4 | 195238 |
| IRS990ScheduleJ/SeverancePaymentInd | 0 | 0 |
| IRS990ScheduleJ/SupplementalInformationDetail/ExplanationTxt | 0 | Children's Hospital Corporation, a related organization, made contributions to the supplemental non-qualified retirement plan for the individuals listed below. Contribution amounts are generally based on a percentage of compensation. Participants of the supplemental executive retirement plan are fully vested. All payments with respect to a participant's separation from service will be made in a single sum following the separation from service unless participant has elected to receive the accrued interest portion of his or her account in three annual installments. Contributions were for Children's Hospital Corporation employee benefits and not for Longwood Research Institute, Inc. Trustee or Officer of the Board services and/or responsibilities. During calendar year 2023, Children's Hospital Corporation made contributions to the supplemental non-qualified reitrement plan for the individuals below: Kevin Churchwell, MD received a contribution of $482,116 Douglas Vanderslice received a contribution of $246,666 Michele Garvin, Esq. received a contribution of $123,124 During calendar year 2023, the following individual received supplemental executive retirement plan distributions from Children's Hospital Corporation: Sandra Fenwick received a distribution of $939,289 |
| IRS990ScheduleJ/SupplementalInformationDetail/ExplanationTxt | 1 | Compensation is for Children's Hospital Corporation executive/employee services; not for Longwood Research Institute, Inc. Trustee or Officer of the Board services. |
| IRS990ScheduleJ/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Part I, Line 4b |
| IRS990ScheduleJ/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | Part II |
| IRS990ScheduleJ/SupplementalNonqualRtrPlanInd | 0 | 1 |
| IRS990/ScheduleORequiredInd | 0 | 1 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | Children's Medical Center Corporation is the sole member of the organization. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | The Children's Medical Center Corporation, as the sole member of the organization, elects the governing body of the organization. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | Children's Medical Center Corporation is the sole member of the organization. As stated in the organization's By Laws, Children's Medical Center Corporation has the powers and rights: (1) to approve the annual operating and capital budgets of the Corporation; (2) to approve capital expenditures by the Corporation in excess of $150,000; (3) to approve long-range planning goals and objectives of the Corporation; (4) to approve the sale of any major portion of the Corporation's assets; (5) to approve the initiation of any fund raising program by the Corporation; (6) to approve the revision of policies with respect to personnel, public relations, fringe benefits or insurance by the Corporation; (7) to approve any new contracts by the Corporation with officers or key management personnel; (8) to approve any substantial increase by the Corporation in the compensation of employees or officers; (9) to approve any lease of equipment or real estate by the Corporation; (10) to approve any change in insurance coverage by the Corporation, whether malpractice, property, director/officer or otherwise; (11) to approve any incurrence of long-term indebtedness by the Corporation; (12) to approve any change in independent certified public accountants by the Corporation; (13) to approve any change in accounting practice by the Corporation; (14) to approve any change in bank accounts by the Corporation or persons authorized to sign checks on such accounts; (15) to approve any contracts involving an annual payment of more than $5,000 by the Corporation; (16) to approve any major change in significant suppliers; (17) to approve the entry into any new line of business by the Corporation. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | The Form 990 tax return was prepared by the Children's Hospital staff and reviewed by the Chief Financial Officer & General Counsel, along with the outside accounting firm of Ernst & Young. A copy was made available to the Board prior to filing. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 4 | Longwood Research Institute, Inc. adopts the Conflict of Interest Policy in the form adopted and maintained by the Children's Hospital Corporation, as from time to time in effect. The Organization's Conflict of Interest and Commitment policy applies to all trustees, Trust Board members, members of the medical or research staff, faculty, fellow, resident, student, visiting faculty or scientist, consultant, volunteers and employees of the Hospital. Trustees, chiefs of service and division chiefs, senior directors and others who exercise influence over important strategic, business and purchasing decisions of the Hospital are required to complete an annual conflict of interest disclosure questionnaire about their financial interests and outside activities. If an expected questionnaire is not returned, the Compliance Officer notifies the individual's supervisor or the CEO or COO, and repeated requests for the completed questionnaire are made until the questionnaire is completed. Responses are reviewed by the Compliance Officer and any potential conflicts are discussed with the Office of General Counsel and/or the individual's supervisor; any actual or potential conflicts are managed by termination of the conflict, management of the conflict, recusal, disclosure, review, or a combination thereof. Outside interests and outside activities may be permitted as long as the Hospital, Medical Center or Trust determines that such interests and activities are consistent with the policies of the Hospital, Medical Center or Trust and the Hospital, Medical Center or Trust Board member, medical staff member or employee involved does the following: 1. discloses the fact that he/she has a financial interest or a consultative role in or with a person or company with which the Hospital, Medical Center or Trust is doing or is thinking of doing business; and 2. refrains from voting or exercising any personal influence whatsoever in the selection of a person or company to do business with the Hospital, Medical Center or Trust with whom or in which he/she has a financial interest or a consultative role; and 3. avoids any active participation in any financial negotiations between the Hospital, Medical Center or Trust and the person or company with whom or in which he/she has a financial interest or consultative role; and 4. does not permit such outside interests or activities to absorb such amounts of his/her time and effort as to make it impractical for them to fulfill their assigned responsibilities at the Hospital, Medical Center or Trust; and 5. does not permit such outside interests or activities to compromise or appear to compromise the name or reputation of the Hospital, Medical Center or Trust. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 5 | The organization does not have any employees and does not compensate its Trustees or Officers of the Board. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 6 | Longwood Research Institute, Inc. adopts the Code of Conduct, Conflict of Interest Policy, and the Compliance Manual, in the form adopted and maintained by the Children's Hospital Corporation, as from time to time in effect. Children's Hospital posts its Code of Conduct (which incorporates the Conflict of Interest Policy) and its Compliance Manual (which includes a summary of the Conflict of Interest Policy) on its external website and these are also available from the Compliance Office or the Office of General Counsel. Governing documents are not posted publicly but are available from the Hospital upon request and are also filed with the Massachusetts Secretary of State, where they are available to the public. Financial statements are available upon request. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 7 | The individuals, who have compensation from related organizations, listed in Column E, spend the remainder of their full time hours working for Children's Medical Center and its other affiliates. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 8 | The filing organization has one independent member of the governing body. The other members of the governing body are compensated by a related organization. However, the filing organization is part of an integrated delivery system of organizations, including Children's Hospital that has community boards. There has been no material change in the structure of the governing body since it applied for and received recognition of exempt status. |
| 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 A, line 7b |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | Form 990, Part VI, Section B, line 11b |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 4 | Form 990, Part VI, Section B, line 12c |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 5 | Form 990, Part VI, Section B, line 15 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 6 | Form 990, Part VI, Section C, line 19 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 7 | Form 990, Part VII, Section A |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 8 | Form 990, Part I, Line 4 & VI, Line 1b - Governing Body & Management |
| IRS990ScheduleR/AssetExchangeInd | 0 | 0 |
| IRS990ScheduleR/AssetPurchaseFromOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/AssetSaleToOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/DivRelatedOrganizationInd | 0 | 0 |
| IRS990ScheduleR/GiftGrntCapContriFromOthOrgInd | 0 | 0 |
| IRS990ScheduleR/GiftGrntOrCapContriToOthOrgInd | 0 | 0 |
| IRS990ScheduleR/IdDisregardedEntitiesGrp/DirectControllingEntityName/BusinessNameLine1Txt | 0 | Longwood Research Institute Inc |
| IRS990ScheduleR/IdDisregardedEntitiesGrp/DirectControllingEntityName/BusinessNameLine1Txt | 1 | Longwood Research Institute Inc |
| IRS990ScheduleR/IdDisregardedEntitiesGrp/DisregardedEntityName/BusinessNameLine1Txt | 0 | Children's Westland LLC |
| IRS990ScheduleR/IdDisregardedEntitiesGrp/DisregardedEntityName/BusinessNameLine1Txt | 1 | BCH 819 Beacon Street LLC |
| IRS990ScheduleR/IdDisregardedEntitiesGrp/EIN | 0 | 262904847 |
| IRS990ScheduleR/IdDisregardedEntitiesGrp/EIN | 1 | 814382691 |
| IRS990ScheduleR/IdDisregardedEntitiesGrp/EndOfYearAssetsAmt | 0 | 0 |
| IRS990ScheduleR/IdDisregardedEntitiesGrp/EndOfYearAssetsAmt | 1 | 6965992 |
| IRS990ScheduleR/IdDisregardedEntitiesGrp/LegalDomicileStateCd | 0 | MA |
| IRS990ScheduleR/IdDisregardedEntitiesGrp/LegalDomicileStateCd | 1 | MA |
| IRS990ScheduleR/IdDisregardedEntitiesGrp/PrimaryActivitiesTxt | 0 | Own, develop, construct, rehabilitate, and manage real estate properties |
| IRS990ScheduleR/IdDisregardedEntitiesGrp/PrimaryActivitiesTxt | 1 | Real Estate Holdings |
| IRS990ScheduleR/IdDisregardedEntitiesGrp/TotalIncomeAmt | 0 | 0 |
| IRS990ScheduleR/IdDisregardedEntitiesGrp/TotalIncomeAmt | 1 | 1290000 |
| IRS990ScheduleR/IdDisregardedEntitiesGrp/USAddress/AddressLine1Txt | 0 | 300 Longwood Avenue |
| IRS990ScheduleR/IdDisregardedEntitiesGrp/USAddress/AddressLine1Txt | 1 | 300 Longwood Avenue |
| IRS990ScheduleR/IdDisregardedEntitiesGrp/USAddress/CityNm | 0 | Boston |
| IRS990ScheduleR/IdDisregardedEntitiesGrp/USAddress/CityNm | 1 | Boston |
| IRS990ScheduleR/IdDisregardedEntitiesGrp/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990ScheduleR/IdDisregardedEntitiesGrp/USAddress/StateAbbreviationCd | 1 | MA |
| IRS990ScheduleR/IdDisregardedEntitiesGrp/USAddress/ZIPCd | 0 | 02115 |
| IRS990ScheduleR/IdDisregardedEntitiesGrp/USAddress/ZIPCd | 1 | 02115 |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/ControlledOrganizationInd | 0 | 0 |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/DirectControllingEntityName/BusinessNameLine1Txt | 0 | Franciscan Hospital for Children Inc |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/EIN | 0 | 043160358 |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/EntityTypeTxt | 0 | C |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/LegalDomicileStateCd | 0 | MA |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/PrimaryActivitiesTxt | 0 | Healthcare |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/RelatedOrganizationName/BusinessNameLine1Txt | 0 | Franciscan Pediatrics Inc |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/USAddress/AddressLine1Txt | 0 | 30 Warren Street |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/USAddress/CityNm | 0 | Brighton |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/USAddress/ZIPCd | 0 | 02135 |
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