| IRS990/AccountantCompileOrReviewInd | 0 | false |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 680436 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 653977 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 216315 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 143016 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | SANTA FE PREPARATORY SCHOOL IS AN INDEPENDENT CO-EDUCATIONAL COLLEGE PREPARATORY DAY SCHOOL, GRADES 7 TRHOUGH 12, DEDICATED TO EDUCATIONAL EXCELLENCE. |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 105762 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 6331 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 112093 |
| IRS990/AllOtherContributionsAmt | 0 | 2254937 |
| IRS990/AllOtherExpensesGrp/FundraisingAmt | 0 | 29672 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 8621 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 206106 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 244399 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | true |
| IRS990/AuditCommitteeInd | 0 | true |
| IRS990/BackupWthldComplianceInd | 0 | true |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | BRUCE SACHS |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 5059821829 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 1101 CAMINO DE LA CRUZ BLANCA |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | SANTA FE |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | NM |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 87505 |
| IRS990/BusinessRlnWithFamMemInd | 0 | true |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 2890992 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 3037451 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CollectionsOfArtInd | 0 | true |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 28428 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 255857 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 153123 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 437408 |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | true |
| IRS990/CompensationProcessOtherInd | 0 | false |
| IRS990/ConferencesMeetingsGrp/FundraisingAmt | 0 | 16671 |
| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 16983 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 68958 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 102612 |
| IRS990/ConflictOfInterestPolicyInd | 0 | true |
| IRS990/ConservationEasementsInd | 0 | true |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | true |
| IRS990/ContriRptFundraisingEventAmt | 0 | 23344 |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 2318171 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 6022347 |
| IRS990/CYInvestmentIncomeAmt | 0 | 700284 |
| IRS990/CYOtherExpensesAmt | 0 | 2632466 |
| IRS990/CYOtherRevenueAmt | 0 | 68743 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 7580465 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | -4485885 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 6498735 |
| IRS990/CYTotalExpensesAmt | 0 | 15153548 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 423453 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 10667663 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | true |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 1962670 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 1989153 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 15478 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 118667 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 381797 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 515942 |
| IRS990/Desc | 0 | THE SCHOOL PROVIDES A COLLEGE PREPARATORY EDUCATION TO 330 STUDENTS IN GRADES 7 THROUGH 12. THE SCHOOL ALSO HOSTS THE SANTA FE BREAKTHROUGH COLLABORATIVE SERVING 130 STUDENTS AND EF FORD SUMMER TEACHERS COLLOQUIUM SERVING 40 TEACHERS. |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | true |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 175 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | true |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 12595919 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 25216 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 25216 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 1001 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 50363 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 53211 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 104575 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 34425 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 34425 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form8282PropertyDisposedOfInd | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 18 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 19 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 20 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 21 | 3.00 |
| 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/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/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/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/OfficerInd | 5 | 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 | 16995 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 23 | 57542 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 24 | 11253 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 25 | 22449 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | KRISTINA ALLEY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | STEVEN BADGER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | BRIAN BOYD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | KELSEY DALY BROWN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | JOSIA CHILD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | JULIA BOAZ COOPER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | EDWARD GALE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | JIM GOODWIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | WILL HALM |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | ALEX LORUSSO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | CAROL MOLDAW |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | SUZANNE MOSS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | FRED NATHAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | CAROL ROMERO-WIRTH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | HUGO SENA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | PHIL SCHILIRO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | LEAH SWANSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | WARREN THOMPSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 18 | CHRISTINE LEHMAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 19 | ADELMA HNASKO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 20 | MAGGIE ANDERSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 21 | PHIL MURRAY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 22 | BRUCE SACHS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 23 | JAMES LEONARD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 24 | SUSAN MATTHEWS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 25 | JOHN UTSEY |
| 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 | 104995 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 23 | 234404 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 24 | 110979 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 25 | 101144 |
| 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/TitleTxt | 0 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 18 | CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 19 | VICE CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 20 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 21 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 22 | DIRECTOR OF |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 23 | HEAD OF SCHO |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 24 | DIRECTOR OF |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 25 | DIR. OF TECH |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/FormationYr | 0 | 1961 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedBasisGrp/ConsolidatedBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | true |
| IRS990/FundraisingActivitiesInd | 0 | true |
| IRS990/FundraisingAmt | 0 | 23344 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 16780 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 208895 |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 22 |
| IRS990/GrantAmt | 0 | 6022347 |
| IRS990/GrantsPayableGrp/BOYAmt | 0 | 8566694 |
| IRS990/GrantsPayableGrp/EOYAmt | 0 | 10770090 |
| IRS990/GrantsToDomesticIndividualsGrp/ProgramServicesAmt | 0 | 5846453 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 5846453 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 175894 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 175894 |
| IRS990/GrantsToIndividualsInd | 0 | true |
| IRS990/GrantsToOrganizationsInd | 0 | true |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 2233257 |
| IRS990/GrossReceiptsAmt | 0 | 12692025 |
| IRS990/GrossRentsGrp/RealAmt | 0 | 7400 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | true |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 22 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 4 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 30090 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 81241 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 111331 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 93981 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 4300 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 98281 |
| IRS990/IntangibleAssetsGrp/BOYAmt | 0 | 138598 |
| IRS990/IntangibleAssetsGrp/EOYAmt | 0 | 129236 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 491389 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 491389 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 16695935 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 18181328 |
| IRS990/IRPDocumentCnt | 0 | 82 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/JointCostsInd | 0 | X |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 7882619 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 9761403 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 9848035 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 17730654 |
| IRS990/LegalDomicileStateCd | 0 | NM |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 2024362 |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | SANTA FE PREPARATORY SCHOOL IS AN INDEPENDENT CO-EDUCATIONAL COLLEGE PREPARATORY DAY SCHOOL, GRADES 7 THROUGH 12, DEDICATED TO EDUCATIONAL EXCELLENCE. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 31588969 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 27783658 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | 208895 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 208895 |
| IRS990/NetIncmFromFundraisingEvtGrp/ExclusionAmt | 0 | 16780 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | 16780 |
| IRS990/NetRentalIncomeOrLossGrp/ExclusionAmt | 0 | 7400 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 7400 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 680574 |
| IRS990/NoncashContributionsAmt | 0 | 917974 |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 10310 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 79038 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 273854 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 363202 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 8051 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 45259 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 119495 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 172805 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 808502 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 854467 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 25157 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 188740 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 676168 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 890065 |
| IRS990/OtherExpensesGrp/Desc | 0 | TEXTBOOKS |
| IRS990/OtherExpensesGrp/Desc | 1 | PROGRAM SUPPLIES |
| IRS990/OtherExpensesGrp/Desc | 2 | UNCOLLECTIBLE PLEDGES |
| IRS990/OtherExpensesGrp/Desc | 3 | PROFESSIONAL DEVELOPMENT |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 88682 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 1 | 4353 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 6501 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 18210 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 217972 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 202621 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 37404 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 217972 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 209122 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 88682 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 59967 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 468000 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 494000 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 611600 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 1 | 611600 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | CHANGE IN VALUE LIFE INSURANC |
| IRS990/OtherRevenueMiscGrp/Desc | 1 | GRANT REFUNDS |
| IRS990/OtherRevenueMiscGrp/ExclusionAmt | 0 | 35965 |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 6189 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 35965 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 1 | 6189 |
| IRS990/OtherRevenueTotalAmt | 0 | 42154 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 179326 |