Liabilities / Assets
25th percentile
Higher debt load relative to assets than 25% of similar nonprofits.
990 • Fiscal year 2018 • EIN 51-0065745
Precomputed percentiles for this filing year versus similar nonprofits in the same peer cohort.
Liabilities / Assets
25th percentile
Higher debt load relative to assets than 25% of similar nonprofits.
Liabilities / Revenue
37th percentile
Higher debt load relative to revenue than 37% of similar nonprofits.
Net Margin
47th percentile
Higher net margin than 47% of similar nonprofits.
Top Officer Pay
76th percentile
Higher top officer pay than 76% of similar nonprofits.
Top officer pay equals 2.3% of source-year revenue.
Asset Growth
61st percentile
Faster asset growth than 61% of similar nonprofits.
Revenue Growth
76th percentile
Faster revenue growth than 76% of similar nonprofits.
Assets
Up$74,417,037
Up $3,668,674 (+5.2%) from 2017
Net Assets
Up$68,440,708
Up $2,833,440 (+4.3%) from 2017
Liabilities
Up$5,976,329
Up $835,234 (+16%) from 2017
Revenue
Up$25,673,209
Up $3,870,674 (+18%) from 2017
Expenses
Up$24,820,850
Up $1,632,264 (+7.0%) from 2017
Net Income
Up$852,359
Up $2,238,410 (+161%) from 2017
Tower hill school prepares students from diverse backgrounds for full and creative engagement with a dynamic world. Each student is provided with an educational experience that emphasizes the development of an inquisitive, discerning and critical mind; the value of being creative and aesthetically sensitive; the appreciation of physical well-being; the ability to collaborate and function as part of a team; and the growth of character.
Tower hill school is a co-educational school for students 3 years old through grade 12.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Land, Buildings, and Equipment, Net | $30,501,639 | $29,644,750 | ▼ $856,889 |
| Investments in Publicly Traded Securities | $26,762,919 | $28,705,505 | ▲ $1,942,586 |
| Investments Other Securities | $10,856,007 | $12,572,054 | ▲ $1,716,047 |
| Cash and Non-Interest-Bearing Accounts | $1,016,343 | $3,215,257 | ▲ $2,198,914 |
| Savings and Temporary Cash Investments | $1,493,043 | - | - |
| Prepaid Expenses and Deferred Charges | $111,438 | $262,437 | ▲ $150,999 |
| Other Notes and Loans Receivable, Net | $6,974 | $17,034 | ▲ $10,060 |
| Total Assets | $70,748,363 | $74,417,037 | ▲ $3,668,674 |
| Liabilities | |||
| Deferred Revenue | $5,082,285 | $5,921,295 | ▲ $839,010 |
| Other Liabilities | $58,810 | $55,034 | ▼ $3,776 |
| Total Liabilities | $5,141,095 | $5,976,329 | ▲ $835,234 |
| Net Assets / Fund Balance | |||
| Unrestricted Net Assets | $40,015,929 | $41,737,118 | ▲ $1,721,189 |
| Permanently Rstr Net Assets | $22,970,208 | $21,701,818 | ▼ $1,268,390 |
| Temporarily Rstr Net Assets | $2,621,131 | $5,001,772 | ▲ $2,380,641 |
| Total Net Assets Fund Balance | $65,607,268 | $68,440,708 | ▲ $2,833,440 |
| Total Liabilities and Net Assets / Fund Balance | $70,748,363 | $74,417,037 | ▲ $3,668,674 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Buildings | $25,927,456 | $28,667,270 | $54,594,726 |
| Land | $3,247,658 | - | $3,247,658 |
| Equipment | $166,977 | $2,971,181 | $3,138,158 |
| Other Land Buildings | $302,659 | - | $302,659 |
| Other Securities | $12,572,054 | - | - |
| Period | Beginning | Contrib. | Gain/Loss | Other Uses | End |
|---|---|---|---|---|---|
| 2017 | $32,752,786 | $1,417,741 | ▲ $3,861,581 | $955,804 | $36,617,927 |
| 2016 | $29,317,648 | $130,735 | ▲ $4,223,508 | $499,385 | $32,752,786 |
| 2015 | $31,430,215 | $88,190 | ▼ $900,757 | $501,464 | $29,317,648 |
| 2014 | $31,584,043 | $60,956 | ▲ $1,030,216 | $479,426 | $31,430,215 |
| 2013 | $28,469,653 | $139,939 | ▲ $4,149,451 | $454,782 | $31,584,043 |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Elizabeth Speers | Head of School | FT | $481,616 | $116,391 | $598,007 |
| Anthony Pisapia | Chief Information and Innovation Officer | FT | $135,938 | $69,098 | $205,036 |
| Anthony Pisapia | Chief Information and Innovation Off | - | $135,938 | $69,098 | $205,036 |
| Kristin Mumford | Director of Advancement | FT | $101,967 | $67,789 | $169,756 |
| Susan Miller | Head of Lower School | FT | $114,273 | $37,848 | $152,121 |
| Thomas Hoch | Chair of Science Department | FT | $101,686 | $28,913 | $130,599 |
| Bianca Wright | CFO | FT | $90,641 | $33,201 | $123,842 |
| Paul Capodanno | Head of Middle School | FT | $108,330 | $9,480 | $117,810 |
| Name | Title |
|---|---|
| Ms Michelle Shepherd | Chair |
| Ms Ellen J Kullman | Vice Chair |
| Dr Anthony Cucuzzella | Trustee |
| Dr David P Roselle | Trustee |
| Dr Eric Johnson | Trustee |
| Mr Benjamin Du Pont | Trustee |
| Mr Charles M Elson | Trustee |
| Mr Henry Mellon | Trustee |
| Mr John M Flynn Md | Trustee |
| Mr Jon Abramczyk | Trustee |
| Mr Laird Hayward | Trustee |
| Mr Regis De Ramel | Trustee |
| Mr Theodore H Ashford Iii | Trustee |
| Mr W Whitfield Gardner | Trustee |
| Mr Z Vance Wilson | Trustee |
| Ms Carmen Wallace | Trustee |
| Ms Gina Ward | Trustee |
| Ms Kimberly Cassidy | Trustee |
| Ms Marna Whittington | Trustee |
| Dr Earl J Ball Iii | Trustee Emeritus |
| Mr William H Daiger Jr | Treasurer |
| Contractor | Services | Location | Compensation |
|---|---|---|---|
| Culinart Group | Catering/dining Service | PO BOX 417632, Boston, MA 02241 | $743,791 |
| Wilcox Landscaping | Landscaper | PO BOX 629, New Castle, DE 19720 | $335,510 |
| First Choice Cleaning Service | Cleaning Service | 1722 NEWPORT GAP PIKE, Wilmington, DE 19808 | $315,666 |
| Hunt Valley Contractors | Design/build Contractor | 3705 CRONDALL LANE, Owings Mills, MD 21117 | $164,757 |
| Modern Controls | Equipment Service | 7 BELLECOR DR, New Castle, DE 19720 | $158,945 |
| Contribution Type | Contribution Count | Reported Amount | Valuation Method |
|---|---|---|---|
| Securities Publicly Traded | 30 | $351,613 | Hi/low Date of Gift |
| Other Non Cash Contri Table | 78 | $15,806 | List Prices/comparab |
| Other Non Cash Contri Table | 31 | $4,560 | List Prices/comparab |
| Total Noncash Contributions | 139 | $371,979 | - |
| Line Item | Amount |
|---|---|
| Salaries, Compensation, and Employee Benefits | $13,514,056 |
| Other Expenses | $7,010,335 |
| Grants and Similar Amounts Paid | $4,296,459 |
| Total Fundraising Expense | $917,982 |
| Professional Fundraising Fees | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $7,543,950 | $2,066,269 | $356,474 | $9,966,693 |
| Grants to Domestic Individuals | $4,296,459 | - | - | $4,296,459 |
| Depreciation Depletion | $1,550,116 | $60,164 | $3,065 | $1,613,345 |
| Other Employee Benefits | $1,099,453 | $222,467 | $55,048 | $1,376,968 |
| Occupancy | $1,219,811 | $47,344 | $2,412 | $1,269,567 |
| Current Officers, Directors, Trustees, and Key Employees | - | $773,860 | - | $773,860 |
| Payroll Taxes | $524,237 | $174,746 | $29,124 | $728,107 |
| Pension Plan Contributions | $503,937 | $136,495 | $27,996 | $668,428 |
| Fees for Services Other | $297,183 | $28,531 | $201,969 | $527,683 |
| Other Expenses | $334,901 | $105,556 | $38,609 | $479,066 |
| Travel | $406,783 | $28,317 | $6,547 | $441,647 |
| Information Technology | $316,115 | $12,269 | $625 | $329,009 |
| Advertising | $81,189 | - | $119,384 | $200,573 |
| Fees for Service Investment Mgmnt Fees | - | $194,779 | - | $194,779 |
| Fees for Services Accounting | - | $172,079 | - | $172,079 |
| Fees for Services Legal | $37,882 | $25,470 | - | $63,352 |
| Total Functional Expenses | $19,461,763 | $4,441,105 | $917,982 | $24,820,850 |
| Line Item | Amount |
|---|---|
| Total Expenses per Form 990 | $24,820,850 |
| Total Expenses per Audited Statements | $20,301,753 |
| Expenses per Audited Statements | $20,218,637 |
| Expenses Not Reported on Financial Statements | $4,602,213 |
| Other Expense Adjustments | $4,407,434 |
| Expenses Not Reported on Form 990 | $83,116 |
| Region | Activity | Services | Offices | Employees | Spending |
|---|---|---|---|---|---|
| Caribbean | Investments | - | 0 | 0 | $7,986,841 |
| Scotland | - | - | 0 | 0 | $376,412 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
| Liability | Amount |
|---|---|
| Employee Payroll Withholdings | $55,034 |
“Form 990 is reviewed and approved by the head of school and the audit committee. Prior to filing, the final draft of the form 990 is made available to the board of trustees for their review.”
“Trustees are required annually to sign conflict of interest statements and disclose any known or potential conflicts of interest in these statements and as they arise throughout the year.”
“Each year, the compensation committee of the board conducts a benchmark analysis to evaluate all components of the head of school's compensation package, including base salary, school-wide benefits, deferred compensation, other compensation, housing, excess remission, and vehicle usage. The benchmark group includes tower hill school and 38 other similarly-situated schools in the us. The compensation committee documents the meeting, including a full list of those present and their independence, and the process used to conduct their review. The committee then presents their recommendation to the full board for review.”
“Governing documents, financial statements and form 990 are held with the school and may be made available upon request.”
“The school's policy is to use a modified cash basis of accounting. The following areas have been accounted for on a strict cash basis: - operating expenditures - capital expenses - contributions revenue - tuition revenue - all other miscellaneous revenue and expenses the following areas have been accounted for on an accrual basis: - tuition prepayments - employee loans - any bank debts - miscellaneous reserves and student funds”
“The audit committee is responsible for the oversight of the audit and selection of the independent accountant. This process remains unchanged from the prior year.”
“The association is exempt from income taxes under section 501(c)(3) of the internal revenue code ("code"). U.s. Gaap requires management to evaluate tax positions taken and recognize a tax liability if the association has taken an uncertain position that more likely than not would not be sustained upon examination by a government authority. Management has analyzed the tax positions taken by the association, and has concluded that as of june 30, 2018 and 2017, there are no uncertain positions taken or expected to be taken that would require recognition of a liability or disclosure in the financial statements. The association recognizes accrued interest and penalties associated with uncertain tax positions, if any. There was no income tax related interest or penalties recorded for each of the years ended june 30, 2018 and 2017.”
“Inventory cogs 83,116. Modified cash basis adjustment 794,030.”
“Financial assistance, remission and merit-based awards 4,296,459.”
“INVENTORY COGS 83,116.”
“Financial assistance, remission and merit-based awards 4,296,459. Modified cash basis adjustment 110,975.”
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 | TOWER HILL SCHOOL IS A CO-EDUCATIONAL SCHOOL FOR STUDENTS 3 YEARS OLD THROUGH GRADE 12. |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 119384 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 81189 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 200573 |
| IRS990/AllOtherContributionsAmt | 0 | 3025156 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | BUSINESS OFFICE TOWER HILL SCHOOL |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 3026578360 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 1611 TOWER ROAD |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | WILMINGTON |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | DE |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 19806 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 1016343 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 3215257 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 8 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 773860 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 773860 |
| 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/ContractorCompensationGrp/CompensationAmt | 0 | 743791 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 1 | 335510 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 2 | 315666 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 3 | 164757 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 4 | 158945 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | PO BOX 417632 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 1 | PO BOX 629 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 2 | 1722 NEWPORT GAP PIKE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 3 | 3705 CRONDALL LANE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 4 | 7 BELLECOR DR |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | BOSTON |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 1 | NEW CASTLE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 2 | WILMINGTON |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 3 | OWINGS MILLS |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 4 | NEW CASTLE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 1 | DE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 2 | DE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 3 | MD |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 4 | DE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 02241 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 1 | 19720 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 2 | 19808 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 3 | 21117 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 4 | 19720 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | CULINART GROUP |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 1 | WILCOX LANDSCAPING |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 2 | FIRST CHOICE CLEANING SERVICE |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 3 | HUNT VALLEY CONTRACTORS |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 4 | MODERN CONTROLS |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | CATERING/DINING SERVICE |
| IRS990/ContractorCompensationGrp/ServicesDesc | 1 | LANDSCAPER |
| IRS990/ContractorCompensationGrp/ServicesDesc | 2 | CLEANING SERVICE |
| IRS990/ContractorCompensationGrp/ServicesDesc | 3 | DESIGN/BUILD CONTRACTOR |
| IRS990/ContractorCompensationGrp/ServicesDesc | 4 | EQUIPMENT SERVICE |
| IRS990/CostOfGoodsSoldAmt | 0 | 83116 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 3025156 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 4296459 |
| IRS990/CYInvestmentIncomeAmt | 0 | 2038827 |
| IRS990/CYOtherExpensesAmt | 0 | 7010335 |
| IRS990/CYOtherRevenueAmt | 0 | 568707 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 20040519 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 852359 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 13514056 |
| IRS990/CYTotalExpensesAmt | 0 | 24820850 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 917982 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 25673209 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 1 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 5082285 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 5921295 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 3065 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 60164 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 1550116 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 1613345 |
| IRS990/Desc | 0 | EDUCATIONAL PROGRAMS - TOWER HILL IS A CO-EDUCATIONAL INDEPENDENT SCHOOL WITH 735 STUDENTS FROM 3 YEARS OLD THROUGH GRADE 12 IN 2017-2018 (219 LOWER SCHOOL, 224 MIDDLE SCHOOL, 292 UPPER SCHOOL). THE SCHOOL PROVIDES AN ENRICHED AND CHALLENGING COLLEGE PREPARATORY PROGRAM IN WHICH EACH STUDENT'S ABILITIES AND TALENTS ARE RECOGNIZED AND RESPECTED. THE PROGRAM OFFERS A PERSONALIZED AND INNOVATIVE APPROACH, BUILT ON A STRONG TRADITIONAL FOUNDATION WITHIN A WELCOMING AND INCLUSIVE COMMUNITY. TOWER HILL GRADUATED 72 STUDENTS IN THE CLASS OF 2018. MEMBERS OF THIS CLASS WILL ATTEND AMHERST COLLEGE, BOSTON COLLEGE, BROWN UNIVERSITY, CARNEGIE MELLON, COLUMBIA UNIVERSITY, DARTMOUTH UNIVERSITY, DUKE UNIVERSITY, GEORGETOWN UNIVERSITY, HARVARD UNIVERSITY, JOHNS HOPKINS, NEW YORK UNIVERSITY, PENNSYLVANIA STATE UNIVERSITY, RHODE ISLAND SCHOOL OF DESIGN, STANFORD UNIVERSITY, UNIVERSITY OF SOUTH CAROLINA, TULANE UNIVERSITY, VANDERBILT UNIVERSITY, VILLANOVA UNIVERSITY, UNIVERSITY OF VIRGINIA AND WASHINGTON UNIVERSITY IN ST. LOUIS, AMONG OTHERS. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 249 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 19099443 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 172079 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 172079 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 25470 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 37882 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 63352 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 201969 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 28531 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 297183 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 527683 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 194779 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 194779 |
| IRS990/ForeignActivitiesInd | 0 | 1 |
| IRS990/ForeignCountryCd | 0 | CJ |
| IRS990/ForeignCountryCd | 1 | UK |
| IRS990/ForeignFinancialAccountInd | 0 | 1 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 5.00 |
| 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 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 18 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 19 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 20 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 21 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 22 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 23 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 24 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 25 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 26 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 27 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 4 | 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/IndividualTrusteeOrDirectorInd | 13 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 14 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 15 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 16 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 17 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 18 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 19 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 20 | 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 | 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/OtherCompensationAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 18 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 19 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 20 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 21 | 106679 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 22 | 33201 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 23 | 9480 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 24 | 28913 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 25 | 37848 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 26 | 67789 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 27 | 69098 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | MS MICHELLE SHEPHERD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | MS ELLEN J KULLMAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | MR WILLIAM H DAIGER JR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | MR JON ABRAMCZYK |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | MR THEODORE H ASHFORD III |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | MS KIMBERLY CASSIDY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | DR ANTHONY CUCUZZELLA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | MR REGIS DE RAMEL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | MR BENJAMIN DU PONT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | MR CHARLES M ELSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | MR JOHN M FLYNN MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | MR W WHITFIELD GARDNER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | MR LAIRD HAYWARD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | DR ERIC JOHNSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | MR HENRY MELLON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | DR DAVID P ROSELLE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | MS CARMEN WALLACE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | MS GINA WARD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 18 | MS MARNA WHITTINGTON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 19 | MR Z VANCE WILSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 20 | DR EARL J BALL III |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 21 | ELIZABETH SPEERS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 22 | BIANCA WRIGHT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 23 | PAUL CAPODANNO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 24 | THOMAS HOCH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 25 | SUSAN MILLER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 26 | KRISTIN MUMFORD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 27 | ANTHONY PISAPIA |
| 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/ReportableCompFromOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 18 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 19 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 20 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 21 | 491328 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 22 | 90641 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 23 | 108330 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 24 | 101686 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 25 | 114273 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 26 | 101967 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 27 | 135938 |
| 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/ReportableCompFromRltdOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 18 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 19 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 20 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 21 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 22 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 23 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 24 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 25 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 26 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 27 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | VICE CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | TRUSTEE |
| 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 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 18 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 19 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 20 | TRUSTEE EMERITUS |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 21 | HEAD OF SCHOOL |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 22 | CFO |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 23 | HEAD OF MIDDLE SCHOOL |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 24 | CHAIR OF SCIENCE DEPARTMENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 25 | HEAD OF LOWER SCHOOL |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 26 | DIRECTOR OF ADVANCEMENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 27 | CHIEF INFORMATION AND INNOVATION OFFICER |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1919 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 1445768 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 20 |
| IRS990/GrantAmt | 0 | 4296459 |
| IRS990/GrantsToDomesticIndividualsGrp/ProgramServicesAmt | 0 | 4296459 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 4296459 |
| IRS990/GrantsToIndividualsInd | 0 | 1 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 2691395 |
| IRS990/GrossReceiptsAmt | 0 | 27001952 |
| IRS990/GrossSalesOfInventoryAmt | 0 | 126500 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 20 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 6 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIIInd | 0 | X |
| IRS990/InformationTechnologyGrp/FundraisingAmt | 0 | 625 |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 12269 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 316115 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 329009 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 593059 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 593059 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsOtherSecuritiesGrp/BOYAmt | 0 | 10856007 |
| IRS990/InvestmentsOtherSecuritiesGrp/EOYAmt | 0 | 12572054 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 26762919 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 28705505 |
| IRS990/IRPDocumentCnt | 0 | 39 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 31638451 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 30501639 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 29644750 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 61283201 |
| IRS990/LegalDomicileStateCd | 0 | DE |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 1245627 |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 0 |
| IRS990/MethodOfAccountingOtherInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | TOWER HILL SCHOOL PREPARES STUDENTS FROM DIVERSE BACKGROUNDS FOR FULL AND CREATIVE ENGAGEMENT WITH A DYNAMIC WORLD. EACH STUDENT IS PROVIDED WITH AN EDUCATIONAL EXPERIENCE THAT EMPHASIZES THE DEVELOPMENT OF AN INQUISITIVE, DISCERNING AND CRITICAL MIND; THE VALUE OF BEING CREATIVE AND AESTHETICALLY SENSITIVE; THE APPRECIATION OF PHYSICAL WELL BEING; THE ABILITY TO COLLABORATE AND FUNCTION AS PART OF A TEAM; AND THE GROWTH OF CHARACTER. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 65607268 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 68440708 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | 1445768 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 1445768 |
| IRS990/NetIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 43384 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 43384 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 1981081 |
| IRS990/NoncashContributionsAmt | 0 | 371979 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 2412 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 47344 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 1219811 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 1269567 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 55048 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 222467 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 1099453 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 1376968 |
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Displayed year
2018 • Form 990Detailed filing. Detailed filing data is available for this year.