Liabilities / Assets
74th percentile
Higher debt load relative to assets than 74% of similar nonprofits.
990 • Fiscal year 2018 • EIN 04-2111216
Precomputed percentiles for this filing year versus similar nonprofits in the same peer cohort.
Liabilities / Assets
74th percentile
Higher debt load relative to assets than 74% of similar nonprofits.
Liabilities / Revenue
84th percentile
Higher debt load relative to revenue than 84% of similar nonprofits.
Net Margin
64th percentile
Higher net margin than 64% of similar nonprofits.
Top Officer Pay
75th percentile
Higher top officer pay than 75% of similar nonprofits.
Top officer pay equals 3.9% of source-year revenue.
Asset Growth
73rd percentile
Faster asset growth than 73% of similar nonprofits.
Revenue Growth
64th percentile
Faster revenue growth than 64% of similar nonprofits.
Assets
Up$28,505,935
Up $2,398,763 (+9.2%) from 2017
Net Assets
Up$12,944,375
Up $770,811 (+6.3%) from 2017
Liabilities
Up$15,561,560
Up $1,627,952 (+12%) from 2017
Revenue
Up$9,918,205
Up $880,239 (+9.7%) from 2017
Expenses
Up$9,010,246
Up $196,282 (+2.2%) from 2017
Net Income
Up$907,959
Up $683,957 (+305%) from 2017
To educated middle school boys - academically, socially, athletically, and spiritually
To educate middle school boys- academically, socially, athletically, and spiritually
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Land, Buildings, and Equipment, Net | $16,329,149 | $18,099,926 | ▲ $1,770,777 |
| Cash and Non-Interest-Bearing Accounts | $3,677,817 | $5,213,586 | ▲ $1,535,769 |
| Investments in Publicly Traded Securities | $2,274,688 | $2,140,093 | ▼ $134,595 |
| Accounts Receivable | $1,017,976 | $1,418,200 | ▲ $400,224 |
| Pledges and Grants Receivable | $1,112,021 | $200,000 | ▼ $912,021 |
| Prepaid Expenses and Deferred Charges | $171,917 | $65,625 | ▼ $106,292 |
| Inventories for Sale or Use | $50,411 | $37,614 | ▼ $12,797 |
| Savings and Temporary Cash Investments | $15,995 | $16,034 | ▲ $39 |
| Total Assets | $26,107,172 | $28,505,935 | ▲ $2,398,763 |
| Other Assets Total | $1,457,198 | $1,314,857 | ▼ $142,341 |
| Liabilities | |||
| Tax Exempt Bond Liabilities | $8,645,833 | $9,218,213 | ▲ $572,380 |
| Other Liabilities | $4,763,239 | $5,683,615 | ▲ $920,376 |
| Accounts Payable and Accrued Expenses | $359,536 | $511,232 | ▲ $151,696 |
| Deferred Revenue | $165,000 | $148,500 | ▼ $16,500 |
| Total Liabilities | $13,933,608 | $15,561,560 | ▲ $1,627,952 |
| Net Assets / Fund Balance | |||
| Unrestricted Net Assets | $10,269,527 | $11,079,381 | ▲ $809,854 |
| Permanently Rstr Net Assets | $1,760,462 | $1,760,462 | → $0 |
| Temporarily Rstr Net Assets | $143,575 | $104,532 | ▼ $39,043 |
| Total Net Assets Fund Balance | $12,173,564 | $12,944,375 | ▲ $770,811 |
| Total Liabilities and Net Assets / Fund Balance | $26,107,172 | $28,505,935 | ▲ $2,398,763 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Buildings | $15,339,140 | $8,213,876 | $23,553,016 |
| Other Land Buildings | $2,308,433 | $1,240,437 | $3,548,870 |
| Equipment | $428,483 | $2,202,788 | $2,631,271 |
| Land | $23,870 | - | $23,870 |
| Period | Beginning | Contrib. | Gain/Loss | Other Uses | End |
|---|---|---|---|---|---|
| 2017 | $2,171,184 | - | - | - | $2,171,184 |
| 2016 | $2,171,184 | - | - | - | $2,171,184 |
| 2015 | $2,171,184 | - | - | - | $2,171,184 |
| 2014 | $2,171,184 | - | - | - | $2,171,184 |
| 2013 | $2,171,184 | - | - | - | $2,171,184 |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Edward Chase Jr | Headmaster | FT | $389,965 | $490 | $390,455 |
| John Mccafferty | Chief Financial Officer | FT | $190,782 | $20,588 | $211,370 |
| William Newman | Assistant Headmaster of En | FT | $130,418 | $13,131 | $143,549 |
| Monica Lucey | Dean of Faculty | FT | $103,505 | $10,780 | $114,285 |
| Name | Title |
|---|---|
| Josh Gross | Vice President |
| Alex Sugar | Trustee |
| Ed Latessa | Trustee |
| Harvey Allen | Trustee |
| Holly Blair | Trustee |
| JOAN O'CONNOR | Trustee |
| John Tegan | Trustee |
| Peggy Troxell | Trustee |
| Thomas Lee | Trustee |
| Emily Wick | Secretary |
| MICHAEL O'NEILL | Treasurer |
| Line Item | Amount |
|---|---|
| Salaries, Compensation, and Employee Benefits | $4,415,835 |
| Other Expenses | $3,401,092 |
| Grants and Similar Amounts Paid | $1,193,319 |
| Total Fundraising Expense | $254,853 |
| Professional Fundraising Fees | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $2,346,427 | $478,656 | $151,250 | $2,976,333 |
| Grants to Domestic Individuals | $1,193,319 | - | - | $1,193,319 |
| Depreciation Depletion | $612,447 | $204,149 | - | $816,596 |
| Occupancy | $515,365 | $99,993 | $16,734 | $632,092 |
| Current Officers, Directors, Trustees, and Key Employees | - | $612,902 | - | $612,902 |
| Other Employee Benefits | $355,450 | $73,354 | $35,706 | $464,510 |
| Interest | $454,341 | $4,403 | - | $458,744 |
| Payroll Taxes | $197,001 | $61,507 | $11,687 | $270,195 |
| Fees for Services Other | $152,816 | $56,854 | $3,500 | $213,170 |
| Office Expenses | $150,087 | $37,955 | $1,266 | $189,308 |
| Advertising | - | $117,425 | $19,986 | $137,411 |
| Travel | $13,015 | $96,613 | $6,223 | $115,851 |
| Insurance | $81,357 | $27,119 | - | $108,476 |
| Pension Plan Contributions | $64,523 | $22,477 | $4,895 | $91,895 |
| Fees for Services Legal | - | $63,451 | - | $63,451 |
| Other Expenses | $1,391 | $37,729 | $2,132 | $41,252 |
| Fees for Services Accounting | - | $33,750 | - | $33,750 |
| All Other Expenses | - | $30,718 | - | $30,718 |
| Total Functional Expenses | $6,517,721 | $2,237,672 | $254,853 | $9,010,246 |
| Line Item | Amount |
|---|---|
| Expenses per Audited Statements | $9,010,246 |
| Total Expenses per Audited Statements | $9,010,246 |
| Total Expenses per Form 990 | $9,010,246 |
| Expenses Not Reported on Financial Statements | $0 |
| Expenses Not Reported on Form 990 | $0 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
| Liability | Amount |
|---|---|
| Prepaid Tuition | $5,451,302 |
| Personal Accounts | $226,313 |
| Prepaid Miscellaneous | $6,000 |
| Bond | Issuer | Issued | Issue Price | Purpose |
|---|---|---|---|---|
| A | Massachusetts Development Finance Agency | 2007-12-01 | $10,000,000 | To finance construction and renovation improvements to school campus |
| Bond | Total Proceeds | Spent | Retired | Issuance Costs |
|---|---|---|---|---|
| A | - | - | - | - |
“The school's headmaster, business manager, and treasurer of the board of trustees review the form 990 prior to filing.”
“Annually, all members of the board of trustees, the headmaster, administrators, and employees with purchasing and/or hiring responsibilities or authority receive a list of vendors with whom the school has transacted business with during the preceding year. Once the aforementioned individuals have reviewed the vendor list, they must complete a written disclosure statement indicating all reportable conflicts or confirming that there are no conflicts to report. The disclosure statements are reviewed by the appropriate level of authority within the school.”
“The headmaster's compensation committee determines the compensation of the headmaster. Additionally, the executive committee of the board of trustees reviews the headmaster's compensation.”
“The school's governing documents and conflict of interest policy are available through the headmaster's office upon request. The financial statements of the school are not distributed to the public.”
“The organization has a finance committee that assumes responsibility for the oversight of the audit of the financial statements and selection of the independent accountant. The process has not changed from prior years.”
“The school intends to use the endowment funds for scholarship and tutorial programs, capital purchases and improvements, educational materials, faculty development, athletic programs, general operating expenses, as well as to maintain the longevity of the school.”
“Fin 48 disclosure u.s. Generally accepted accounting principles require an entity to assess the probability that a tax position has a "more likely than not" (mtln) sustainability after review by tax authorities. If a tax position is deemed not to meet this threshold, any unrecognized tax benefits and costs are estimated and recognized. Interest and penalties, if any, related to assessments by tax authorities will be classified as a component of interest expense and other expense, respectively, in the statement of activities. A tax position may be considered as taken any time a taxpayer chooses amongst alternatives that affect the amount of their tax obligations and include for example: tax emempt status; status as a pass-through entity(s corporation); decisions not to file in certain jurisdictions; allocation of income between jurisdictions and the characterization of income or expenses. Tax returns are routinely open for review by the tax authorities for three years from their due date. In certain circumstances the statute of limitations may remain open indefinitely. Hillside school has been notified by the internal revenue service that it meets the qualifications to be classified as a tax exempt entity under section 501 (c)(3) of the internal revenue code. Since the continuance of this status is based upon continuing qualifications, hillside school has indentified this as a tax position. However, it has determined that this tax position meets mltn sustainability and does not result in an uncertainty requiring recognition. Hillside school has also been classified as an entity that is not a private foundation within the meaning of 509(a) and qualifies for deductible contributions as provided in section 170 (b)(1)(a)(vi).”
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/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 359536 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 511232 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 1017976 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 1418200 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | TO EDUCATE MIDDLE SCHOOL BOYS- ACADEMICALLY, SOCIALLY, ATHLETICALLY, AND SPIRITUALLY |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 19986 |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 117425 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 137411 |
| IRS990/AllOtherContributionsAmt | 0 | 834318 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 30718 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 30718 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | EDWARD CHASE JR |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 5084852824 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 404 ROBIN HILL STREET |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | MARLBOROUGH |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 01752 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 3677817 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 5213586 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 612902 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 612902 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 1 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 834318 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 1193319 |
| IRS990/CYInvestmentIncomeAmt | 0 | 289604 |
| IRS990/CYOtherExpensesAmt | 0 | 3401092 |
| IRS990/CYOtherRevenueAmt | 0 | 419836 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 8374447 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 907959 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 4415835 |
| IRS990/CYTotalExpensesAmt | 0 | 9010246 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 254853 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 9918205 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 165000 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 148500 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 204149 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 612447 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 816596 |
| IRS990/Desc | 0 | EDUCATION - PROVIDING EDUCATION TO STUDENTS. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 0 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 89 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/EscrowAccountInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 6517721 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 33750 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 33750 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 63451 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 63451 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 3500 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 56854 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 152816 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 213170 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 1 | 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/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 | 490 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 20588 |
| 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/OtherCompensationAmt | 13 | 13131 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 10780 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | EDWARD CHASE JR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | JOHN MCCAFFERTY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | HARVEY ALLEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | JOSH GROSS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | MICHAEL O'NEILL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | ED LATESSA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | ALEX SUGAR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | THOMAS LEE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | JOHN TEGAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | JOAN O'CONNOR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | EMILY WICK |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | PEGGY TROXELL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | HOLLY BLAIR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | WILLIAM NEWMAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | MONICA LUCEY |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 389965 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 190782 |
| 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/ReportableCompFromOrgAmt | 13 | 130418 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 14 | 103505 |
| 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/ReportableCompFromRltdOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | HEADMASTER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | CHIEF FINANCIAL OFFICER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | VICE PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | ASSISTANT HEADMASTER OF EN |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | DEAN OF FACULTY |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1901 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 13 |
| IRS990/GrantAmt | 0 | 1193319 |
| IRS990/GrantsToDomesticIndividualsGrp/ProgramServicesAmt | 0 | 1193319 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 1193319 |
| IRS990/GrantsToIndividualsInd | 0 | 1 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 9918205 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 11 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 4 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIIInd | 0 | X |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 27119 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 81357 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 108476 |
| IRS990/InterestGrp/ManagementAndGeneralAmt | 0 | 4403 |
| IRS990/InterestGrp/ProgramServicesAmt | 0 | 454341 |
| IRS990/InterestGrp/TotalAmt | 0 | 458744 |
| IRS990/InventoriesForSaleOrUseGrp/BOYAmt | 0 | 50411 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 37614 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 289604 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 289604 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 2274688 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 2140093 |
| IRS990/InvestTaxExemptBondsInd | 0 | 0 |
| IRS990/IRPDocumentCnt | 0 | 16 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 11657101 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 16329149 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 18099926 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 29757027 |
| IRS990/LegalDomicileStateCd | 0 | MA |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 0 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | TO EDUCATED MIDDLE SCHOOL BOYS - ACADEMICALLY, SOCIALLY, ATHLETICALLY, AND SPIRITUALLY |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 12173564 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 12944375 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | -137148 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 16734 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 99993 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 515365 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 632092 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 1266 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 37955 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 150087 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 189308 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OnBehalfOfIssuerInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 1457198 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 1314857 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 35706 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 73354 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 355450 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 464510 |
| IRS990/OtherExpensesGrp/Desc | 0 | FOOD |
| IRS990/OtherExpensesGrp/Desc | 1 | MISCELLANEOUS |
| IRS990/OtherExpensesGrp/Desc | 2 | STUDENT ACTIVITIES |
| IRS990/OtherExpensesGrp/Desc | 3 | DUES & SUBSCRIPTIONS |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 1474 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 1 | 2132 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 178617 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 37729 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 203292 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 2491 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 174399 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 1391 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 203292 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 182582 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 174399 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 41252 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 4763239 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 5683615 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | MISCELLANEOUS REVENUE |
| IRS990/OtherRevenueMiscGrp/ExclusionAmt | 0 | 419836 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 419836 |
| IRS990/OtherRevenueTotalAmt | 0 | 419836 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 151250 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 478656 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 2346427 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 2976333 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 11687 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 61507 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 197001 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 270195 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 4895 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 22477 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 64523 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 91895 |
| IRS990/PermanentlyRstrNetAssetsGrp/BOYAmt | 0 | 1760462 |
| IRS990/PermanentlyRstrNetAssetsGrp/EOYAmt | 0 | 1760462 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 1112021 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 200000 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 171917 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 65625 |
| IRS990/PrincipalOfficerNm | 0 | EDWARD CHASE JR |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 900099 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | TUITION AND FEES |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 8374447 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 8374447 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 830253 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 1507961 |
| IRS990/PYInvestmentIncomeAmt | 0 | 96079 |
| IRS990/PYOtherExpensesAmt | 0 | 2986535 |
| IRS990/PYOtherRevenueAmt | 0 | 60291 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 8051343 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 224002 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 4319468 |
| IRS990/PYTotalExpensesAmt | 0 | 8813964 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 9037966 |
| IRS990/QuidProQuoContributionsInd | 0 | 1 |
| IRS990/QuidProQuoContriDisclInd | 0 | 1 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 907959 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 0 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 1 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RevenueAmt | 0 | 8374447 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 15995 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 16034 |
| IRS990ScheduleA/SchoolInd | 0 | X |
| IRS990/ScheduleBRequiredInd | 0 | 1 |
| IRS990ScheduleD/BuildingsGrp/BookValueAmt | 0 | 15339140 |
| IRS990ScheduleD/BuildingsGrp/DepreciationAmt | 0 | 8213876 |
| IRS990ScheduleD/BuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 23553016 |
| IRS990ScheduleD/CYEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 2171184 |
| IRS990ScheduleD/CYEndwmtFundGrp/EndYearBalanceAmt | 0 | 2171184 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 2171184 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 2171184 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 2171184 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 2171184 |
| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 2171184 |
| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 2171184 |
| IRS990ScheduleD/CYMinus4YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 2171184 |
| IRS990ScheduleD/CYMinus4YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 2171184 |
| IRS990ScheduleD/EndowmentsHeldRelatedOrgInd | 0 | 0 |
| IRS990ScheduleD/EndowmentsHeldUnrelatedOrgInd | 0 | 0 |
| IRS990ScheduleD/EquipmentGrp/BookValueAmt | 0 | 428483 |
| IRS990ScheduleD/EquipmentGrp/DepreciationAmt | 0 | 2202788 |
| IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt | 0 | 2631271 |
| IRS990ScheduleD/ExpensesNotReportedAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesNotRptFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesSubtotalAmt | 0 | 9010246 |
| IRS990ScheduleD/FootnoteTextInd | 0 | X |
| IRS990ScheduleD/LandGrp/BookValueAmt | 0 | 23870 |
| IRS990ScheduleD/LandGrp/OtherCostOrOtherBasisAmt | 0 | 23870 |
| IRS990ScheduleD/NetUnrealizedGainsInvstAmt | 0 | -137148 |
| IRS990ScheduleD/OtherLandBuildingsGrp/BookValueAmt | 0 | 2308433 |
| IRS990ScheduleD/OtherLandBuildingsGrp/DepreciationAmt | 0 | 1240437 |
| IRS990ScheduleD/OtherLandBuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 3548870 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 0 | 226313 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 1 | 6000 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 2 | 5451302 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 0 | PERSONAL ACCOUNTS |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 1 | PREPAID MISCELLANEOUS |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 2 | PREPAID TUITION |
| IRS990ScheduleD/RevenueNotReportedAmt | 0 | -137148 |
| IRS990ScheduleD/RevenueNotReportedFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/RevenueSubtotalAmt | 0 | 9918205 |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 0 | THE SCHOOL INTENDS TO USE THE ENDOWMENT FUNDS FOR SCHOLARSHIP AND TUTORIAL PROGRAMS, CAPITAL PURCHASES AND IMPROVEMENTS, EDUCATIONAL MATERIALS, FACULTY DEVELOPMENT, ATHLETIC PROGRAMS, GENERAL OPERATING EXPENSES, AS WELL AS TO MAINTAIN THE LONGEVITY OF THE SCHOOL. |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 1 | FIN 48 DISCLOSURE U.S. GENERALLY ACCEPTED ACCOUNTING PRINCIPLES REQUIRE AN ENTITY TO ASSESS THE PROBABILITY THAT A TAX POSITION HAS A "MORE LIKELY THAN NOT" (MTLN) SUSTAINABILITY AFTER REVIEW BY TAX AUTHORITIES. IF A TAX POSITION IS DEEMED NOT TO MEET THIS THRESHOLD, ANY UNRECOGNIZED TAX BENEFITS AND COSTS ARE ESTIMATED AND RECOGNIZED. INTEREST AND PENALTIES, IF ANY, RELATED TO ASSESSMENTS BY TAX AUTHORITIES WILL BE CLASSIFIED AS A COMPONENT OF INTEREST EXPENSE AND OTHER EXPENSE, RESPECTIVELY, IN THE STATEMENT OF ACTIVITIES. A TAX POSITION MAY BE CONSIDERED AS TAKEN ANY TIME A TAXPAYER CHOOSES AMONGST ALTERNATIVES THAT AFFECT THE AMOUNT OF THEIR TAX OBLIGATIONS AND INCLUDE FOR EXAMPLE: TAX EMEMPT STATUS; STATUS AS A PASS-THROUGH ENTITY(S CORPORATION); DECISIONS NOT TO FILE IN CERTAIN JURISDICTIONS; ALLOCATION OF INCOME BETWEEN JURISDICTIONS AND THE CHARACTERIZATION OF INCOME OR EXPENSES. TAX RETURNS ARE ROUTINELY OPEN FOR REVIEW BY THE TAX AUTHORITIES FOR THREE YEARS FROM THEIR DUE DATE. IN CERTAIN CIRCUMSTANCES THE STATUTE OF LIMITATIONS MAY REMAIN OPEN INDEFINITELY. HILLSIDE SCHOOL HAS BEEN NOTIFIED BY THE INTERNAL REVENUE SERVICE THAT IT MEETS THE QUALIFICATIONS TO BE CLASSIFIED AS A TAX EXEMPT ENTITY UNDER SECTION 501 (C)(3) OF THE INTERNAL REVENUE CODE. SINCE THE CONTINUANCE OF THIS STATUS IS BASED UPON CONTINUING QUALIFICATIONS, HILLSIDE SCHOOL HAS INDENTIFIED THIS AS A TAX POSITION. HOWEVER, IT HAS DETERMINED THAT THIS TAX POSITION MEETS MLTN SUSTAINABILITY AND DOES NOT RESULT IN AN UNCERTAINTY REQUIRING RECOGNITION. HILLSIDE SCHOOL HAS ALSO BEEN CLASSIFIED AS AN ENTITY THAT IS NOT A PRIVATE FOUNDATION WITHIN THE MEANING OF 509(A) AND QUALIFIES FOR DEDUCTIBLE CONTRIBUTIONS AS PROVIDED IN SECTION 170 (B)(1)(A)(VI). |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART V, LINE 4: |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | PART X, LINE 2: |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 18099926 |
| IRS990ScheduleD/TotalExpensesPerForm990Amt | 0 | 9010246 |
| IRS990ScheduleD/TotalLiabilityAmt | 0 | 5683615 |
| IRS990ScheduleD/TotalRevenuePerForm990Amt | 0 | 9918205 |
| IRS990ScheduleD/TotalRevEtcAuditedFinclStmtAmt | 0 | 9781057 |
| IRS990ScheduleD/TotExpnsEtcAuditedFinclStmtAmt | 0 | 9010246 |
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Displayed year
2018 • Form 990Detailed filing. Detailed filing data is available for this year.