Liabilities / Assets
33rd percentile
Higher debt load relative to assets than 33% of similar nonprofits.
EIN 42-1552247 • 501(c)3 • Needham, MA
Profile
The significant activity of st. Sebastian school fund, inc. Is tosupport the educational purposes of st. Sebastian's school, inc. Byreceiving monetary funds and real or personal property, managing suchproperty, and from time to time, remitting the income or gainstherefrom to st. Sebastian's school, inc. And otherwise to operate forthe benefit of, to perform the function of, or to carry out thepurposes of st. Sebastian's school, inc. (from the articles oforganization).
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
33rd percentile
Higher debt load relative to assets than 33% of similar nonprofits.
Liabilities / Revenue
77th percentile
Higher debt load relative to revenue than 77% of similar nonprofits.
Net Margin
87th percentile
Higher net margin than 87% of similar nonprofits.
Top Officer Pay
Score unavailable
No filing with officer rows is available for this organization yet.
Asset Growth
76th percentile
Faster asset growth than 76% of similar nonprofits.
Revenue Growth
25th percentile
Faster revenue growth than 25% of similar nonprofits.
Assets
Up$100,501,815
Up $12,371,041 (+14%) from 2023
Liabilities
Down$12,955,327
Down $315,509 (-2.4%) from 2023
Net Assets
Up$87,546,488
Up $12,686,550 (+17%) from 2023
Revenue
Down$10,121,992
Down $229,659 (-2.2%) from 2023
Expenses
Down$6,307,162
Down $4,118,513 (-40%) from 2023
Net Income
Up$3,814,830
Up $3,888,854 (+5254%) from 2023
Most recent year
2024 • Form 990Detailed filing. Detailed filing data is available for this year.
See schedule othe significant activity of st. Sebastian's school fund, inc. Is to support the educational purposes of st. Sebastian's school, inc. By receiving monetary funds and real or personal property, managing such property, and from time to time, remitting the income or gains therefrom to st. Sebastian's school, inc. And otherwise to operate for the benefit of, to perform the function of, or to carry out the purposes of st. Sebastian's school, inc. (from the articles of organization).
The significant activity of st. Sebastian school fund, inc. Is to support the educational purposes of st. Sebastian's school, inc. By receiving monetary funds and real or personal property, managing such property, and from time to time, remitting the income or gains therefrom to st. Sebastian's school, inc. And otherwise to operate for the benefit of, to perform the functions of, or to carry out the purposes of st. Sebastian's school, inc. (from the articles of organization).
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Investments in Publicly Traded Securities | $69,496,881 | $83,705,659 | ▲ $14,208,778 |
| Land, Buildings, and Equipment, Net | $9,474,756 | $9,413,000 | ▼ $61,756 |
| Savings and Temporary Cash Investments | $4,591,735 | $3,923,017 | ▼ $668,718 |
| Pledges and Grants Receivable | $4,567,402 | $3,460,139 | ▼ $1,107,263 |
| Total Assets | $88,130,774 | $100,501,815 | ▲ $12,371,041 |
| Liabilities | |||
| Tax Exempt Bond Liabilities | $13,241,081 | $12,926,283 | ▼ $314,798 |
| Other Liabilities | $29,755 | $29,044 | ▼ $711 |
| Total Liabilities | $13,270,836 | $12,955,327 | ▼ $315,509 |
| Net Assets / Fund Balance | |||
| Net Assets With Donor Restrictions | $46,276,109 | $53,512,497 | ▲ $7,236,388 |
| Net Assets Without Donor Restrictions | $28,583,829 | $34,033,991 | ▲ $5,450,162 |
| Total Net Assets Fund Balance | $74,859,938 | $87,546,488 | ▲ $12,686,550 |
| Total Liabilities and Net Assets / Fund Balance | $88,130,774 | $100,501,815 | ▲ $12,371,041 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Land | $8,808,687 | - | $8,808,687 |
| Buildings | $535,883 | $468,098 | $1,003,981 |
| Leasehold Improvements | $68,430 | $13,080 | $81,510 |
| Period | Beginning | Contrib. | Gain/Loss | Other Uses | End |
|---|---|---|---|---|---|
| 2023 | $61,886,870 | $4,802,500 | ▲ $10,581,156 | $2,470,000 | $74,800,526 |
| 2022 | $55,458,228 | $4,237,000 | ▲ $6,876,642 | $4,685,000 | $61,886,870 |
| 2021 | $58,019,746 | $5,046,495 | ▼ $5,408,013 | $2,200,000 | $55,458,228 |
| 2020 | $44,634,251 | $3,824,243 | ▲ $11,319,652 | $1,758,400 | $58,019,746 |
| 2019 | $41,977,218 | $2,813,391 | ▲ $1,343,642 | $1,500,000 | $44,634,251 |
| Name | Title |
|---|---|
| James L Elcock | President |
| Jim Mooney | Vice President |
| Cathy Daniel | Trustee |
| Devin Condron | Trustee |
| John E Mcnamara | Trustee |
| Michael Maguire | Trustee |
| Michael R Frisoli | Trustee |
| Rev Michael Drea | Trustee |
| Steve Dufour | Trustee |
| William L Burke | Trustee |
| John Piccione | Ex Officio |
| Barb Connolly | Ex Officio / Clerk |
| David M Calabro | Treasurer |
| Contribution Type | Contribution Count | Reported Amount | Valuation Method |
|---|---|---|---|
| Securities Publicly Traded | 21 | $711,004 | Fair Market Value (FMV) |
| Total Noncash Contributions | 21 | $711,004 | - |
| Line Item | Amount |
|---|---|
| Grants and Similar Amounts Paid | $5,802,626 |
| Other Expenses | $504,536 |
| Professional Fundraising Fees | $0 |
| Salaries, Compensation, and Employee Benefits | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Grants to Domestic Orgs | $5,802,626 | - | - | $5,802,626 |
| Interest | - | $358,344 | - | $358,344 |
| Depreciation Depletion | - | $69,692 | - | $69,692 |
| Other Expenses | - | $6,246 | - | $6,246 |
| Total Functional Expenses | $5,802,626 | $504,536 | $0 | $6,307,162 |
| Recipient | Location | Category | Purpose | Amount |
|---|---|---|---|---|
| ST SEBASTIAN'S SCHOOL INC | Needham, MA | 501(c)(3) | TO SUPPORT EDUCATIONALPURPOSES OF ST. SEBASTIAN'S SCHOOL, INC. | $5,802,626 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
| Liability | Amount |
|---|---|
| Accrued Interest | $29,044 |
| Bond | Issuer | Issued | Issue Price | Purpose |
|---|---|---|---|---|
| A | The Massachusetts Development Finance Agency | 2021-09-30 | $14,000,000 | SEE PART IV |
| Bond | Total Proceeds | Spent | Retired | Issuance Costs |
|---|---|---|---|---|
| A | $13,312,550 | $13,183,817 | - | $128,733 |
“St. Sebastian's school, inc. Is the sole member of st. Sebastian school fund, inc.”
“St. Sebastian's school, inc. Is the only member of the fund, inc. And has the right to elect directors and officers of st. Sebastian school fund, inc.”
“The board members of st. Sebastian school fund, inc. Review the form 990 and the board receives a full copy of the final form 990 before it is filed.”
“The organization regularly and consistently monitors and enforces compliance with the conflict of interest policy with its officers, directors and key employees by annually signing a conflict of interest questionnaire. In the event of a conflict, the officer, director, or key employee must recuse themselves of any decision-making with the respect to such conflict.”
“The governing documents, conflict of interest policy, form 990, and financial statements will be made available to the public upon request (either by mail or in person at the organization's office, depending on the form of request) for the same period of disclosure as set forth in section 6104(d). In addition, the form 990, without schedule b, is available via the guidestar and the massachusetts attorney genereal's office website.”
“St. Sebastian school fund, inc. Has no employees.”
“Trustee william l. Burke is employed as the headmaster of the related organization, st. Sebastian school, inc (the "school"). The school is not required to file form 990 under a religious group exemption. The fund has elected to exclude the reporting of mr. Burke's compensation consistent with the school.”
“Management evaluated the school's tax positions and concluded that the school had no material uncertainties in income taxes as of june 30, 2024 and 2023. The school's tax filings are generally open for inspection for three years following the date filed.”
“The purpose of the endowment is to support the school and its mission over the long term. Gifts are reported as either temporarily or permanently restricted if they are received with donor stipulations that limit the use of the donated assets. When a donor restriction expires, that is, when a stipulated time restriction ends or purpose restriction is accomplished, temporarily restricted net assets are reclassified as unrestricted net assets.”
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 | THE SIGNIFICANT ACTIVITY OF ST. SEBASTIAN SCHOOL FUND, INC. IS TO SUPPORT THE EDUCATIONAL PURPOSES OF ST. SEBASTIAN'S SCHOOL, INC. BY RECEIVING MONETARY FUNDS AND REAL OR PERSONAL PROPERTY, MANAGING SUCH PROPERTY, AND FROM TIME TO TIME, REMITTING THE INCOME OR GAINS THEREFROM TO ST. SEBASTIAN'S SCHOOL, INC. AND OTHERWISE TO OPERATE FOR THE BENEFIT OF, TO PERFORM THE FUNCTIONS OF, OR TO CARRY OUT THE PURPOSES OF ST. SEBASTIAN'S SCHOOL, INC. (FROM THE ARTICLES OF ORGANIZATION). |
| IRS990/AllOtherContributionsAmt | 0 | 8043996 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | DAVID RIEDELL |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 7814495200 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 1191 GREENDALE AVENUE |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | NEEDHAM |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 02492 |
| 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 | 8043996 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 5802626 |
| IRS990/CYInvestmentIncomeAmt | 0 | 1865333 |
| IRS990/CYOtherExpensesAmt | 0 | 504536 |
| IRS990/CYOtherRevenueAmt | 0 | 212663 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 3814830 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/CYTotalExpensesAmt | 0 | 6307162 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 10121992 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 1 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 69692 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 69692 |
| IRS990/Desc | 0 | ST. SEBASTIAN SCHOOL FUND, INC. PROVIDES GENERAL SUPPORT FOR THE OPERATIONS OF ST. SEBASTIAN'S SCHOOL, INC. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 0 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 46276109 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 53512497 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 1 |
| IRS990/ElectionOfBoardMembersInd | 0 | 1 |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/EscrowAccountInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 5802626 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 1 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 2 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 3 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 4 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 5 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 6 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 7 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 8 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 9 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 10 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 11 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 12 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 0.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 0.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 0.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 0.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 0.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 0.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 0.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 0.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 0.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 0.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 0.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 0.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 0.50 |
| 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/IndividualTrusteeOrDirectorInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 7 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 8 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 9 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 10 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 11 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 12 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | WILLIAM L BURKE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | DAVID M CALABRO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | DEVIN CONDRON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | BARB CONNOLLY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | CATHY DANIEL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | REV MICHAEL DREA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | STEVE DUFOUR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | JAMES L ELCOCK |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | MICHAEL MAGUIRE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | JOHN E MCNAMARA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | JIM MOONEY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | JOHN PICCIONE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | MICHAEL R FRISOLI |
| 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/ReportableCompFromOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | EX OFFICIO / CLERK |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | VICE PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | EX OFFICIO |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | TRUSTEE |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 2002 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/ConsolidatedBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | -8304 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 13 |
| IRS990/GrantAmt | 0 | 5802626 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 5802626 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 5802626 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 1 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 10167107 |
| IRS990/GrossRentsGrp/RealAmt | 0 | 247411 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 0 |
| IRS990/IndependentVotingMemberCnt | 0 | 12 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InterestGrp/ManagementAndGeneralAmt | 0 | 358344 |
| IRS990/InterestGrp/TotalAmt | 0 | 358344 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 1873637 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 1873637 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 69496881 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 83705659 |
| IRS990/InvestTaxExemptBondsInd | 0 | 0 |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 481178 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 9474756 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 9413000 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 9894178 |
| IRS990/LegalDomicileStateCd | 0 | MA |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 8304 |
| IRS990/LessRentalExpensesGrp/RealAmt | 0 | 36811 |
| 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 | THE SIGNIFICANT ACTIVITY OF ST. SEBASTIAN SCHOOL FUND, INC. IS TOSUPPORT THE EDUCATIONAL PURPOSES OF ST. SEBASTIAN'S SCHOOL, INC. BYRECEIVING MONETARY FUNDS AND REAL OR PERSONAL PROPERTY, MANAGING SUCHPROPERTY, AND FROM TIME TO TIME, REMITTING THE INCOME OR GAINSTHEREFROM TO ST. SEBASTIAN'S SCHOOL, INC. AND OTHERWISE TO OPERATE FORTHE BENEFIT OF, TO PERFORM THE FUNCTION OF, OR TO CARRY OUT THEPURPOSES OF ST. SEBASTIAN'S SCHOOL, INC. (FROM THE ARTICLES OFORGANIZATION). |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 74859938 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 87546488 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | -8304 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | -8304 |
| IRS990/NetRentalIncomeOrLossGrp/ExclusionAmt | 0 | 210600 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 210600 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 8871720 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 28583829 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 34033991 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NoncashContributionsAmt | 0 | 711004 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OnBehalfOfIssuerInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherExpensesGrp/Desc | 0 | REAL ESTATE TAXES |
| IRS990/OtherExpensesGrp/Desc | 1 | MISCELLANEOUS EXPENSE |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 70254 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 6246 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 70254 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 6246 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 29755 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 29044 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 901101 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | MISC. REVENUES |
| IRS990/OtherRevenueMiscGrp/ExclusionAmt | 0 | 2063 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 2063 |
| IRS990/OtherRevenueTotalAmt | 0 | 2063 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 4567402 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 3460139 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrincipalOfficerNm | 0 | DEVIN CONDRON |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 8826872 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 9926832 |
| IRS990/PYInvestmentIncomeAmt | 0 | 1432847 |
| IRS990/PYOtherExpensesAmt | 0 | 498843 |
| IRS990/PYOtherRevenueAmt | 0 | 91932 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | -74024 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/PYTotalExpensesAmt | 0 | 10425675 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 10351651 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 3814830 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 1 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/RentalIncomeOrLossGrp/RealAmt | 0 | 210600 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 1 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 4591735 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 3923017 |
| 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 | 0 |
| IRS990ScheduleA/Form990SchAType1SuprtOrgGrp/PowerAppointMajorityDirTrstInd | 0 | 1 |
| IRS990ScheduleA/OtherSupportSumAmt | 0 | 0 |
| IRS990ScheduleA/SupportedOrganizationsCnt | 0 | 1 |
| IRS990ScheduleA/SupportedOrganizationsTotalCnt | 0 | 1 |
| IRS990ScheduleA/SupportedOrgInformationGrp/EIN | 0 | 042104921 |
| IRS990ScheduleA/SupportedOrgInformationGrp/GoverningDocumentListedInd | 0 | 1 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OrganizationTypeCd | 0 | 2 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OtherSupportAmt | 0 | 0 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportAmt | 0 | 5802626 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportedOrganizationName/BusinessNameLine1Txt | 0 | ST SEBASTIAN'S SCHOOL INC |
| IRS990ScheduleA/SupportingOrganization509a3Ind | 0 | X |
| IRS990ScheduleA/SupportingOrgType1Ind | 0 | X |
| IRS990ScheduleA/SupportSumAmt | 0 | 5802626 |
| 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/BoardDesignatedBalanceEOYPct | 0 | 0.36400 |
| IRS990ScheduleD/BuildingsGrp/BookValueAmt | 0 | 535883 |
| IRS990ScheduleD/BuildingsGrp/DepreciationAmt | 0 | 468098 |
| IRS990ScheduleD/BuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 1003981 |
| IRS990ScheduleD/CYEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 61886870 |
| IRS990ScheduleD/CYEndwmtFundGrp/ContributionsAmt | 0 | 4802500 |
| IRS990ScheduleD/CYEndwmtFundGrp/EndYearBalanceAmt | 0 | 74800526 |
| IRS990ScheduleD/CYEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | 10581156 |
| IRS990ScheduleD/CYEndwmtFundGrp/OtherExpendituresAmt | 0 | 2470000 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 55458228 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/ContributionsAmt | 0 | 4237000 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 61886870 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | 6876642 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/OtherExpendituresAmt | 0 | 4685000 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 58019746 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/ContributionsAmt | 0 | 5046495 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 55458228 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | -5408013 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/OtherExpendituresAmt | 0 | 2200000 |
| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 44634251 |
| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/ContributionsAmt | 0 | 3824243 |
| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 58019746 |
| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | 11319652 |
| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/OtherExpendituresAmt | 0 | 1758400 |
| IRS990ScheduleD/CYMinus4YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 41977218 |
| IRS990ScheduleD/CYMinus4YrEndwmtFundGrp/ContributionsAmt | 0 | 2813391 |
| IRS990ScheduleD/CYMinus4YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 44634251 |
| IRS990ScheduleD/CYMinus4YrEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | 1343642 |
| IRS990ScheduleD/CYMinus4YrEndwmtFundGrp/OtherExpendituresAmt | 0 | 1500000 |
| IRS990ScheduleD/EndowmentsHeldRelatedOrgInd | 0 | 0 |
| IRS990ScheduleD/EndowmentsHeldUnrelatedOrgInd | 0 | 0 |
| IRS990ScheduleD/FootnoteTextInd | 0 | X |
| IRS990ScheduleD/LandGrp/BookValueAmt | 0 | 8808687 |
| IRS990ScheduleD/LandGrp/OtherCostOrOtherBasisAmt | 0 | 8808687 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/BookValueAmt | 0 | 68430 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/DepreciationAmt | 0 | 13080 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/OtherCostOrOtherBasisAmt | 0 | 81510 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 0 | 29044 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 0 | ACCRUED INTEREST |
| IRS990ScheduleD/PrmnntEndowmentBalanceEOYPct | 0 | 0.46000 |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 0 | MANAGEMENT EVALUATED THE SCHOOL'S TAX POSITIONS AND CONCLUDED THAT THE SCHOOL HAD NO MATERIAL UNCERTAINTIES IN INCOME TAXES AS OF JUNE 30, 2024 AND 2023. THE SCHOOL'S TAX FILINGS ARE GENERALLY OPEN FOR INSPECTION FOR THREE YEARS FOLLOWING THE DATE FILED. |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 1 | THE PURPOSE OF THE ENDOWMENT IS TO SUPPORT THE SCHOOL AND ITS MISSION OVER THE LONG TERM. GIFTS ARE REPORTED AS EITHER TEMPORARILY OR PERMANENTLY RESTRICTED IF THEY ARE RECEIVED WITH DONOR STIPULATIONS THAT LIMIT THE USE OF THE DONATED ASSETS. WHEN A DONOR RESTRICTION EXPIRES, THAT IS, WHEN A STIPULATED TIME RESTRICTION ENDS OR PURPOSE RESTRICTION IS ACCOMPLISHED, TEMPORARILY RESTRICTED NET ASSETS ARE RECLASSIFIED AS UNRESTRICTED NET ASSETS. |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART X, LINE 2: |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | PART V, LINE 4: |
| IRS990ScheduleD/TermEndowmentBalanceEOYPct | 0 | 0.17600 |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 9413000 |
| IRS990ScheduleD/TotalLiabilityAmt | 0 | 29044 |
| IRS990ScheduleI/GrantRecordsMaintainedInd | 0 | 1 |
| IRS990ScheduleI/RecipientTable/CashGrantAmt | 0 | 5802626 |
| IRS990ScheduleI/RecipientTable/IRCSectionDesc | 0 | 501(C)(3) |
| IRS990ScheduleI/RecipientTable/NonCashAssistanceAmt | 0 | 0 |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 0 | TO SUPPORT EDUCATIONALPURPOSES OF ST. SEBASTIAN'S SCHOOL, INC. |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 0 | ST SEBASTIAN'S SCHOOL INC |
| IRS990ScheduleI/RecipientTable/RecipientEIN | 0 | 042104921 |
| IRS990ScheduleI/RecipientTable/USAddress/AddressLine1Txt | 0 | 1191 GREENDALE AVENUE |
| IRS990ScheduleI/RecipientTable/USAddress/CityNm | 0 | NEEDHAM |
| IRS990ScheduleI/RecipientTable/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990ScheduleI/RecipientTable/USAddress/ZIPCd | 0 | 02492 |
| IRS990ScheduleI/SupplementalInformationDetail/ExplanationTxt | 0 | THE RECORDS ARE MAINTAINED BY ST. SEBASTIAN'S SCHOOL, INC. ALL THE GRANTS ARE NEED BASED. |
| IRS990ScheduleI/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART I, LINE 2: |
| IRS990/ScheduleJRequiredInd | 0 | 0 |
| IRS990ScheduleK/ProceduresCorrectiveActionGrp/BondReferenceCd | 0 | A |
| IRS990ScheduleK/ProceduresCorrectiveActionGrp/ProceduresCorrectiveActionInd | 0 | 1 |
| IRS990ScheduleK/SupplementalInformationDetail/ExplanationTxt | 0 | THE FINANCING OR REIMBURSEMENT OF (I) THE DEVELOPMENT AND CONSTRUCTION OF AN ACADEMIC BUILDING TO BE LOCATED AT 1176 GREENDALE AVENUE, NEEDHAM, MA AND THE FURNISHING AND EQUIPPING THEREOF AND (II) THE PAYMENT OF COSTS ISSUING THE BONDS. IN SEPTEMBER 2021, THE SCHOOL EXECUTED AN AGREEMENT IN QUALIFIED TAX-EXEMPT BONDS (SERIES 2021 BONDS) TO PAY OFF THE SERIES 2010 BONDS AND FINANCE CERTIAN CAPITAL PROJECTS. THE OUTSTANDING BALANCE OF THE BONDS WERE REISSUED, WITH A NEW INTEREST RATE OF 2.73%. |
| IRS990ScheduleK/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART I, A(F) DESCRIPTION OF PURPOSE |
| IRS990ScheduleK/TaxExemptBondsArbitrageGrp/BondReferenceCd | 0 | A |
| IRS990ScheduleK/TaxExemptBondsArbitrageGrp/ExceptionToRebateInd | 0 | 0 |
| IRS990ScheduleK/TaxExemptBondsArbitrageGrp/Form8038TFiledInd | 0 | 0 |
| IRS990ScheduleK/TaxExemptBondsArbitrageGrp/GrossProceedsInvestedInd | 0 | 0 |
| IRS990ScheduleK/TaxExemptBondsArbitrageGrp/GrossProceedsInvestedInGICInd | 0 | 0 |
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