| IRS990/AccountantCompileOrReviewInd | 0 | false |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 3817921 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 4584523 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 3351348 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 4355793 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | THE BREARLEY SCHOOL IS A PRIVATE EDUCATIONAL INSTITUTION IN NEW YORK CITY THAT PROVIDES A QUALITY EDUCATION TO GIRLS IN GRADES K-12. |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 64642 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 11362 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 76004 |
| IRS990/AllOtherContributionsAmt | 0 | 19331810 |
| IRS990/AllOtherExpensesGrp/FundraisingAmt | 0 | 86964 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 525661 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 1570872 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 2183497 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | true |
| IRS990/AuditCommitteeInd | 0 | true |
| IRS990/BackupWthldComplianceInd | 0 | true |
| IRS990/BenefitsToMembersGrp/TotalAmt | 0 | 0 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | RAHUL TRIPATHI |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 2125708579 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 610 EAST 83RD STREET |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | NEW YORK |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | NY |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 10028 |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 2000 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 1998 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 5 |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 62536 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 334625 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 1096069 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 1493230 |
| IRS990/CompDisqualPersonsGrp/TotalAmt | 0 | 0 |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | true |
| IRS990/CompensationProcessOtherInd | 0 | true |
| IRS990/ConferencesMeetingsGrp/FundraisingAmt | 0 | 6508 |
| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 15820 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 79046 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 101374 |
| IRS990/ConflictOfInterestPolicyInd | 0 | true |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | true |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 183679 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 1 | 164123 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 2 | 163048 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 3 | 105126 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 4 | 110797 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 200 CLAREDON STREET |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 1 | THE PILOT HOUSE AT LEWIS WHARF |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 2 | THE PILOT HOUSE AT LEWIS WHARF |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 3 | 750 THIRD AVENUE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 4 | 733 3rd AVENUE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | BOSTON |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 1 | BOSTON |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 2 | BOSTON |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 3 | NEW YORK |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 4 | NEW YORK |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 1 | MA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 2 | MA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 3 | NY |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 4 | NY |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 021160000 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 1 | 021100000 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 2 | 021100000 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 3 | 100172503 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 4 | 10017 |
| IRS990/ContractorCompensationGrp/ContractorName/PersonNm | 0 | ADAGE CAPITAL PARTNERS LP |
| IRS990/ContractorCompensationGrp/ContractorName/PersonNm | 1 | ADAMAS OPPORTUNITIES LP |
| IRS990/ContractorCompensationGrp/ContractorName/PersonNm | 2 | ADAMAS PARTNERS LP |
| IRS990/ContractorCompensationGrp/ContractorName/PersonNm | 3 | EISNERAMPER LLP |
| IRS990/ContractorCompensationGrp/ContractorName/PersonNm | 4 | ROSENBERG AND ESTIS PC |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | INVESTMENT MGMT FEES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 1 | INVESTMENT MGMT FEES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 2 | INVESTMENT MGMT FEES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 3 | AUDIT AND TAX SRVCS |
| IRS990/ContractorCompensationGrp/ServicesDesc | 4 | LAW FIRM |
| IRS990/ContriRptFundraisingEventAmt | 0 | 424331 |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 19883839 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 4787540 |
| IRS990/CYInvestmentIncomeAmt | 0 | 3407702 |
| IRS990/CYOtherExpensesAmt | 0 | 10629261 |
| IRS990/CYOtherRevenueAmt | 0 | 519546 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 31714326 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 13740390 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 26338052 |
| IRS990/CYTotalExpensesAmt | 0 | 41785023 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 1429398 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 30170 |
| IRS990/CYTotalRevenueAmt | 0 | 55525413 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | true |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 19373359 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 20188838 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 69689 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 372902 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 1221445 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 1664036 |
| IRS990/Desc | 0 | THE BREARLEY SCHOOL CHALLENGES GIRLS OF ADVENTUROUS INTELLECT TO THINK CRITICALLY AND CREATIVELY AND PREPARES THEM FOR ACTIVE, RESPONSIBLE CITIZENSHIP IN A DEMOCRATIC SOCIETY. WITHIN A DIVERSE COMMUNITY AND IN PARTNERSHIP WITH DEDICATED FACULTY WHO TEACH ACROSS THREE DIVISIONS, STUDENTS IN CLASSES K THROUGH XII DEVELOP A COMMAND OF MANY DISCIPLINES AND A LOVE OF LEARNING THROUGH THE PASSIONATE EXCHANGE OF IDEAS. ENCOURAGING GIRLS TO BALANCE INDIVIDUALITY AND COLLABORATION FURTHER PROMOTES THE INTEGRITY ESSENTIAL TO PRINCIPLED ENGAGEMENT IN THE WORLD. |
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| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 392 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | true |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
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| IRS990/EscrowAccountLiabilityGrp/EOYAmt | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 30166670 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
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| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 112126 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 111136 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 111136 |
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| IRS990/FeesForServicesManagementGrp/TotalAmt | 0 | 0 |
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| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 134686 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 30013 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 210015 |
| IRS990/FeesForServicesProfFundraising/FundraisingAmt | 0 | 30170 |
| IRS990/FeesForServicesProfFundraising/TotalAmt | 0 | 30170 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 430002 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 430002 |
| IRS990/ForeignActivitiesInd | 0 | true |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignGrantsGrp/TotalAmt | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form8282PropertyDisposedOfInd | 0 | false |
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| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 6 | 0.0 |
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| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 16 | 0.0 |
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| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 20 | 0.0 |
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| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 24 | 1.0 |
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| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 26 | 0.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 27 | 0.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 28 | 0.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 29 | 0.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 30 | 0.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 31 | 0.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 10.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 5.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 5.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 5.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 18 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 19 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 20 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 21 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 22 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 23 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 24 | 40.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 25 | 40.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 26 | 40.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 27 | 40.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 28 | 40.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 29 | 40.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 30 | 40.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 31 | 40.0 |
| 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/HighestCompensatedEmployeeInd | 5 | 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/IndividualTrusteeOrDirectorInd | 21 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 22 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 23 | X |
| IRS990/Form990PartVIISectionAGrp/KeyEmployeeInd | 0 | 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 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 22 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 23 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 24 | 174742 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 25 | 53648 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 26 | 32423 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 27 | 35332 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 28 | 35076 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 29 | 34408 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 30 | 32336 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 31 | 21013 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | ELLEN JEWETT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | CARTER BROOKS SIMONDS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | CHRISTOPHER L MANN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | NOAH GOTTDIENER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | CHRISTINE FRANKENHOFF ALFARO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | REZA ALI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | NICHOLAS C BIENSTOCK |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | VIRGINIA CONNOR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | FRANCOIS DE MENIL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | MARISA GARDINI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | JANE GLADSTONE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | IVAN M HAGEMAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | MUNIB ISLAM |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | ELIZABETH HARPEL KEHLER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | GEORGIA LEVENSON KEOHANE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | KATHLEEN MORIARTY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | STEPHANIE L PERLMAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | JULIA PERSHAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 18 | DAVID P PHILIP |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 19 | NAOMI PRESS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 20 | PAULA CAMPBELL ROBERTS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 21 | MODUPE AKINOLA ROBINSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 22 | TERRI J SELIGMAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 23 | ANDREW TSAI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 24 | JANE FRIED |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 25 | RAHUL TRIPATHI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 26 | ANNE BERGEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 27 | TAMMY ZAZURI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 28 | EVELYN SEGAL LIPTON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 29 | MARIA-ANNA ZIMMERMAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 30 | JAMES E MULKIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 31 | CAROLYN CLARK |
| 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 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 22 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 23 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 24 | 708252 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 25 | 325790 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 26 | 257451 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 27 | 210942 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 28 | 200182 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 29 | 191409 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 30 | 181498 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 31 | 180645 |
| 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/ReportableCompFromRltdOrgAmt | 28 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 29 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 30 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 31 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | VICE PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | TREASURER |
| 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 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 21 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 22 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 23 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 24 | HEAD OF SCHOOL |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 25 | CFO/COO |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 26 | DIRECTOR OF DEVELOPMENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 27 | DIRECTOR OF ATHLETICS |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 28 | HEAD OF UPPER SCHOOL |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 29 | HEAD OF LOWER SCHOOL |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 30 | DEAN OF ACADEMIC LIFE |