| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 1779414 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 1814703 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 304875 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 229712 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | TO CONDUCT A SCHOOL FOR EDUCATIONAL PURPOSE ON A NONPROFIT BASIS AND SUCH OTHER THINGS AS NECESSARY OR USEFUL IN THE ACCOMPLISHMENT OF SAID PURPOSE. |
| IRS990/AllOtherContributionsAmt | 0 | 2289811 |
| IRS990/AmendedReturnInd | 0 | X |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | MATTEW D SEMO |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 8437224088 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 172 RUTLEDGE AVE |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | CHARLESTON |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | SC |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 29403 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 251364 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 251879 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 5 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 68344 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 451072 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 847468 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 1366884 |
| IRS990/CompDisqualPersonsGrp/FundraisingAmt | 0 | 449342 |
| IRS990/CompDisqualPersonsGrp/ManagementAndGeneralAmt | 0 | 3219379 |
| IRS990/CompDisqualPersonsGrp/ProgramServicesAmt | 0 | 5925601 |
| IRS990/CompDisqualPersonsGrp/TotalAmt | 0 | 9594322 |
| 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 | 703755 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 1 | 185949 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 2 | 132827 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 3 | 128039 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 4 | 125760 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 6000 TOWN CENTER BLVD |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 1 | 5001 PARTNER RD |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 2 | 1952 BELGRADE AVE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 3 | 1070 ST ANDREWS BLVD |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 4 | 10600 BROWNSBURG PLACE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | CANONSBURG |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 1 | CHARLESTON |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 2 | CHARLESTON |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 3 | CHARLESTON |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 4 | RALEIGH |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | PA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 1 | SC |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 2 | SC |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 3 | SC |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 4 | NC |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 15317 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 1 | 29455 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 2 | 29407 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 3 | 29407 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 4 | 27613 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | ALADDIN FOOD MANAGEMENT |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 1 | EMPRESAS AVILA LLC |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 2 | SERVICE EXPERTS HEATING AND AIR |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 3 | TELECO OF CHARLESTON |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 4 | SPOLETO STUDY ABROAD |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | FOOD SERVICE |
| IRS990/ContractorCompensationGrp/ServicesDesc | 1 | LANDSCAPING MAINTENANCE |
| IRS990/ContractorCompensationGrp/ServicesDesc | 2 | HVAC SERVICES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 3 | TECHNOLOGY |
| IRS990/ContractorCompensationGrp/ServicesDesc | 4 | OVERSEAS STUDY PROGRAM |
| IRS990/CreditCounselingInd | 0 | 1 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 3393430 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 2454906 |
| IRS990/CYInvestmentIncomeAmt | 0 | 455326 |
| IRS990/CYOtherExpensesAmt | 0 | 6228023 |
| IRS990/CYOtherRevenueAmt | 0 | 45296 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 18328705 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | -279407 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 13819235 |
| IRS990/CYTotalExpensesAmt | 0 | 22502164 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 692251 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 22222757 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 1 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 6197359 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 6952988 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 10550 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 101276 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 1660500 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 1772326 |
| IRS990/Desc | 0 | EDUCATION PROVIDED TO KINDERGARTEN THROUGH 12TH GRADE STUDENTS, AFTER SCHOOL AND SUMMER PROGRAMS FOR THE STUDENTS AS WELL AS EARLY CHILDHOOD PROGRAMS FOR YOUNGER CHILDREN. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 8097192 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 7618506 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 1 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 292 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/EscrowAccountInd | 0 | 0 |
| IRS990/EscrowAccountLiabilityGrp/BOYAmt | 0 | 88858 |
| IRS990/EscrowAccountLiabilityGrp/EOYAmt | 0 | 79078 |
| IRS990/ExpenseAmt | 0 | 16621378 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 34881 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 34881 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 18 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 19 | 40.00 |
| 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/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/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 | 34000 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 18 | 8880 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 19 | 8737 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | ARTIE I RICHARDS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | KENNETH W HARRELL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | ELIZABETH FORT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | HUGH C LANE JR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | MRJIANZHENG CEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | EMMIE AICHELE DAWSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | PHILIP L HORN JR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | LAURIE A HOST |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | LENNA KIRCHNER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | MARK FAVA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | RHETT RAMSAY OUTTEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | KAREN JENKINS PHILLIPS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | MELA HAKLISCH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | KENDRA HAMILTON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | ERIC STRICKLAND |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | SARA DEWOLF |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | ANNIE FRANCIS BLEEKER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | JILL S MUTI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 18 | MATTHEW D SEMO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 19 | ANNE WESTON |
| 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 | 472835 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 18 | 164404 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 19 | 169305 |
| 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/TitleTxt | 0 | MEMBER-AT-LARGE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | CHAIRPERSON |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | MEMBER-AT-LARGE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | MEMBER-AT-LARGE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | VICE-CHAIRPERSON |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | MEMBER-AT-LARGE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | MEMBER-AT-LARGE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | MEMBER-AT-LARGE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | MEMBER-AT-LARGE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | MEMBER-AT-LARGE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | MEMBER-AT-LARGE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | MEMBER-AT-LARGE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | MEMBER-AT-LARGE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | MEMBER-AT-LARGE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | HEAD OF SCHOOL |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 18 | CFO |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 19 | ASSISTANT HEAD OF SCHOOL |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1949 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedInd | 0 | 0 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | -2787 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 18 |
| IRS990/GovernmentGrantsAmt | 0 | 1103619 |
| IRS990/GrantAmt | 0 | 2454906 |
| IRS990/GrantsToDomesticIndividualsGrp/ProgramServicesAmt | 0 | 2454906 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 2454906 |
| IRS990/GrantsToIndividualsInd | 0 | 1 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 150354 |
| IRS990/GrossReceiptsAmt | 0 | 22375898 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 18 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 7 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/FundraisingAmt | 0 | 1581 |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 15175 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 248804 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 265560 |
| IRS990/InsuranceGrp/FundraisingAmt | 0 | 2683 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 25752 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 422232 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 450667 |
| IRS990/InterestGrp/FundraisingAmt | 0 | 1488 |
| IRS990/InterestGrp/ManagementAndGeneralAmt | 0 | 14280 |
| IRS990/InterestGrp/ProgramServicesAmt | 0 | 234137 |
| IRS990/InterestGrp/TotalAmt | 0 | 249905 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 458113 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 458113 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsOtherSecuritiesGrp/BOYAmt | 0 | 250000 |
| IRS990/InvestmentsOtherSecuritiesGrp/EOYAmt | 0 | 250000 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 8815684 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 7804170 |
| IRS990/InvestTaxExemptBondsInd | 0 | 0 |
| IRS990/IRPDocumentCnt | 0 | 73 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 22851295 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 38240805 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 41009322 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 63860617 |
| IRS990/LegalDomicileStateCd | 0 | SC |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 153141 |
| 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 CONDUCT A SCHOOL FOR EDUCATIONAL PURPOSE ON A NONPROFIT BASIS AND SUCH OTHER THINGS AS NECESSARY OR USEFUL IN THE ACCOMPLISHMENT OF SAID PURPOSE. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 27323326 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 24615711 |
| IRS990/NetGainOrLossInvestmentsGrp/RelatedOrExemptFuncIncomeAmt | 0 | -2787 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | -2787 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | -1369253 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 19226134 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 16997205 |
| IRS990/NoncashContributionsAmt | 0 | 228736 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OnBehalfOfIssuerInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 1058955 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 1103619 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 88804 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 586103 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 1101164 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 1776071 |
| IRS990/OtherExpensesGrp/Desc | 0 | PROGRAM AND OPERATIONS |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 15361 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 383571 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 3055752 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 3454684 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 4310956 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 4259610 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 611710 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 1 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | OTHER INCOME |
| IRS990/OtherRevenueMiscGrp/Desc | 1 | INTEREST ON LATE PAYMENT |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 37323 |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 1 | 7973 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 37323 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 1 | 7973 |
| IRS990/OtherRevenueTotalAmt | 0 | 45296 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 36366 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 240013 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 450933 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 727312 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 17732 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 117033 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 219881 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 354646 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 1283681 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 915266 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 101134 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 165476 |
| IRS990/PrincipalOfficerNm | 0 | PALMER BALL |
| IRS990/PriorPeriodAdjustmentsAmt | 0 | -1058955 |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 611600 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 611710 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | TUITION AND FEES |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | AUXILIARY SERVICE |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 17339819 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 988886 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 17339819 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 988886 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 3293177 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 2487545 |
| IRS990/PYInvestmentIncomeAmt | 0 | 245135 |
| IRS990/PYOtherExpensesAmt | 0 | 0 |
| IRS990/PYOtherRevenueAmt | 0 | 129190 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 16353831 |