| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 309623 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 248449 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 72101 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 83631 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | TO PROVIDE QUALITY CHILD CARE AND EDUCATION TO CHILDREN OF DIVERSE ECONOMIC AND ETHNIC BACKGROUNDS FROM INFANCY THROUGH SCHOOL AGE. SEEKS OPPORTUNITIES TO ADVOCATE FOR THE WELL-BEING OF ALL CHILDREN. |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 55789 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 22134 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 77923 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | ANNE SCHMITZ |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 3014969411 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 6006 EXECUTIVE BLVD |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | ROCKVILLE |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MD |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 20852 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 875783 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 1208706 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 39861 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 119582 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 159443 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 0 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 186743 |
| IRS990/CYOtherExpensesAmt | 0 | 798202 |
| IRS990/CYOtherRevenueAmt | 0 | 9193 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 5856147 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 403224 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 4850657 |
| IRS990/CYTotalExpensesAmt | 0 | 5648859 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 6052083 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 0 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 187611 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 8464 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 1494 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 9958 |
| IRS990/Desc | 0 | ECDC'S FOUR CHILD CARE CENTERS PROVIDED CARE TO MORE THAN 400 CHILDREN. OUR STUDENTS RANGE FROM INFANCY TO 12 YEARS OF AGE. IN ADDITION TO ENSURING THAT OUR CHILDREN LEARN ACADEMIC SKILLS TO HELP THEM IN SCHOOL, ECDC SEEKS TO BOLSTER THE EMOTIONAL AND SOCIAL DEVELOPMENT OF EACH CHILD. WE OFFER A WELL-REPUTED SUMMER CAMP FOR SCHOOL-AGED CHILDREN. WE CONSISTANTLY RECEIVE EXCELLENT EVALUATION FROM OUR ACCREDITATION BOARDS AND OUR PARENTS. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 211 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 5041784 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 19810 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 19810 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 17498 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 17498 |
| 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 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 50.00 |
| 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/OfficerInd | 0 | 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 | 13485 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | ROBERT OSHINSKY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | ROSEMARY MCKAIG |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | ANGELA MAGLIOZZI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | CHAD OLDER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | SONIA LEE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | BRIDGET WILLIAMS SIMMONS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | SEAN FINNEGAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | ANNE SCHMITZ |
| 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 | 159443 |
| 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 |
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| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | BOARD CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | EXECUTIVE DIRECTOR |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1985 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/FundraisingDirectExpensesAmt | 0 | 2506 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 1715 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 7 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 6054589 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 7 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 1 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 1958 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 1958 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 44549 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 44549 |
| IRS990/InterestGrp/ManagementAndGeneralAmt | 0 | 124 |
| IRS990/InterestGrp/TotalAmt | 0 | 124 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 186743 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 186743 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 2000844 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 2212159 |
| IRS990/IRPDocumentCnt | 0 | 10 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
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| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 16569 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 28359 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 181770 |
| IRS990/LegalDomicileStateCd | 0 | MD |
| 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 PROVIDE QUALITY CHILD CARE AND EDUCATION TO CHILDREN OF DIVERSE ECONOMIC AND ETHNIC BACKGROUNDS FROM INFANCY THROUGH SCHOOL AGE. ECDC'S MULTI-CULTURAL ENVIRONMENT CULTIVATES A COLLABORATIVE MULTI-DISCIPLINARY APPROACH TO MEETING THE NEEDS OF OUR FAMILIES. IN THE BROADER COMMUNITY, ECDC SEEKS OPPORTUNITIES TO ADVOCATE FOR THE WELL-BEING OF ALL CHILDREN. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
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| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 2900414 |
| IRS990/NetIncmFromFundraisingEvtGrp/ExclusionAmt | 0 | -791 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | -791 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 26094 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
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| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 24916 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 257 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 1128 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 62384 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 561459 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 623843 |
| IRS990/OtherExpensesGrp/Desc | 0 | FOOD FOR STUDENT |
| IRS990/OtherExpensesGrp/Desc | 1 | EDUCATIONAL RESOURCES |
| IRS990/OtherExpensesGrp/Desc | 2 | SPECIAL EVENTS & ACTIVI |
| IRS990/OtherExpensesGrp/Desc | 3 | WORKERS' COMPENSATION |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 307055 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 105734 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 76794 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 47833 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 307055 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 105734 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 76794 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 47833 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 228077 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 231579 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | MISCELLANEOUS INCOME |
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| IRS990/OtherRevenueTotalAmt | 0 | 9984 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 300060 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 3450691 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 3750751 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 31662 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 284958 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 316620 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 43242 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 34070 |
| IRS990/PrincipalOfficerNm | 0 | ANNE SCHMITZ |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 611600 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | TUITION & SUPPORT |
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| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 5856147 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
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| IRS990/PYOtherExpensesAmt | 0 | 657048 |
| IRS990/PYOtherRevenueAmt | 0 | 2649 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 5488352 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 261288 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 4684690 |
| IRS990/PYTotalExpensesAmt | 0 | 5341738 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 5603026 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 403224 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 0 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 1 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RevenueAmt | 0 | 5856147 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus1YearAmt | 0 | 3424 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 100 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/TotalAmt | 0 | 3524 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/CurrentTaxYearAmt | 0 | 1795500 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/CurrentTaxYearMinus1YearAmt | 0 | 1634500 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 1546000 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 1546000 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 1571667 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/TotalAmt | 0 | 8093667 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearAmt | 0 | 186743 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus1YearAmt | 0 | 108601 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 94578 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 37683 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 1696 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/TotalAmt | 0 | 429301 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearAmt | 0 | 5856147 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus1YearAmt | 0 | 5488352 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus2YearsAmt | 0 | 5416420 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus3YearsAmt | 0 | 5219559 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus4YearsAmt | 0 | 4999238 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/TotalAmt | 0 | 26979716 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearAmt | 0 | 186743 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus1YearAmt | 0 | 108601 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus2YearsAmt | 0 | 94578 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus3YearsAmt | 0 | 37683 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus4YearsAmt | 0 | 1696 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/TotalAmt | 0 | 429301 |
| IRS990ScheduleA/InvestmentIncomeCYPct | 0 | 0.01210 |
| IRS990ScheduleA/InvestmentIncomePYPct | 0 | 0.00770 |
| IRS990ScheduleA/OtherIncome509Grp/CurrentTaxYearAmt | 0 | 9984 |
| IRS990ScheduleA/OtherIncome509Grp/CurrentTaxYearMinus1YearAmt | 0 | 2106 |
| IRS990ScheduleA/OtherIncome509Grp/TotalAmt | 0 | 12090 |
| IRS990ScheduleA/PubliclySupportedOrg509a2Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY509Pct | 0 | 0.98760 |
| IRS990ScheduleA/PublicSupportPY509Pct | 0 | 0.99220 |
| IRS990ScheduleA/PublicSupportTotal509Amt | 0 | 35076907 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY509Ind | 0 | X |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearAmt | 0 | 7651647 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus1YearAmt | 0 | 7126276 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 6962420 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 6765559 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 6571005 |
| IRS990ScheduleA/Total509Grp/TotalAmt | 0 | 35076907 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearAmt | 0 | 7848374 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus1YearAmt | 0 | 7236983 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus2YearsAmt | 0 | 7056998 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus3YearsAmt | 0 | 6803242 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus4YearsAmt | 0 | 6572701 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/TotalAmt | 0 | 35518298 |
| IRS990/ScheduleBRequiredInd | 0 | 0 |
| IRS990ScheduleD/DonatedServicesAndUseFcltsAmt | 0 | 1795500 |
| IRS990ScheduleD/DonatedServicesUseFcltsAmt | 0 | 1795500 |
| IRS990ScheduleD/EquipmentGrp/BookValueAmt | 0 | 28359 |
| IRS990ScheduleD/EquipmentGrp/DepreciationAmt | 0 | 153411 |
| IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt | 0 | 181770 |
| IRS990ScheduleD/ExpensesNotReportedAmt | 0 | 1798006 |
| IRS990ScheduleD/ExpensesNotRptFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesSubtotalAmt | 0 | 5648859 |
| IRS990ScheduleD/FootnoteTextInd | 0 | X |
| IRS990ScheduleD/NetUnrealizedGainsInvstAmt | 0 | 26094 |
| IRS990ScheduleD/OtherExpensesIncludedAmt | 0 | 2506 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 0 | 9788 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 1 | 221791 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 0 | CAPITAL LEASE |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 1 | TUITION DEPOSITS |
| IRS990ScheduleD/OtherRevenuesNotIncludedAmt | 0 | -2506 |
| IRS990ScheduleD/RevenueNotReportedAmt | 0 | 1821594 |
| IRS990ScheduleD/RevenueNotReportedFinclStmtAmt | 0 | -2506 |
| IRS990ScheduleD/RevenueSubtotalAmt | 0 | 6054589 |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 0 | THE CENTER IS EXEMPT FROM FEDERAL INCOME TAXES UNDER SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE. BOTH MARYLAND AND THE DISTRICT OF COLUMBIA HAVE OFFERED INCOME TAX EXEMPTION TO THE CENTER AS WELL. ACCORDINGLY, NO PROVISION FOR INCOME TAXES IS INCLUDED IN THE ACCOMPANYING FINANCIAL STATEMENTS. HOWEVER, INCOME FROM ACTIVITIES NOT RELATED TO THE CENTER'S TAX-EXEMPT PURPOSE MAY BE SUBJECT TO TAXATION AS UNRELATED BUSINESS INCOME. MANAGEMENT DOES NOT BELIEVE THE CENTER ENGAGED IN ANY SUCH ACTIVITIES DURING THE YEARS ENDED DECEMBER 31, 2014 OR 2013. ALTHOUGH THE CENTER FILED INFORMATION RETURNS, NO TAX RETURNS WERE FILED DURING 2013 AND 2012. MANAGEMENT DOES NOT BELIEVE THE CENTER HAS TAKEN ANY UNCERTAIN TAX POSITIONS, INCLUDING ANY POSITIONS THAT WOULD PLACE ITS TAX-EXEMPT STATUS IN JEOPARDY AS OF DECEMBER 31, 2014 AND 2013. FISCAL YEARS ENDING ON OR AFTER DECEMBER 31, 2011 REMAIN SUBJECT TO EXAMINATION BY FEDERAL AND STATE TAX AUTHORITIES. |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 1 | FUNDRAISING EXPENSE -2,506. |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 2 | FUNDRAISING EXPENSE 2,506. |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART X, LINE 2: |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | PART XI, LINE 4B - OTHER ADJUSTMENTS: |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | PART XII, LINE 2D - OTHER ADJUSTMENTS: |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 28359 |
| IRS990ScheduleD/TotalExpensesPerForm990Amt | 0 | 5648859 |
| IRS990ScheduleD/TotalLiabilityAmt | 0 | 231579 |
| IRS990ScheduleD/TotalRevenuePerForm990Amt | 0 | 6052083 |
| IRS990ScheduleD/TotalRevEtcAuditedFinclStmtAmt | 0 | 7876183 |
| IRS990ScheduleD/TotExpnsEtcAuditedFinclStmtAmt | 0 | 7446865 |
| IRS990ScheduleJ/AnyNonFixedPaymentsInd | 0 | 0 |
| IRS990ScheduleJ/BoardOrCommitteeApprovalInd | 0 | X |
| IRS990ScheduleJ/CompBasedOnRevenueOfFlngOrgInd | 0 | 0 |
| IRS990ScheduleJ/CompBsdNetEarnsFlngOrgInd | 0 | 0 |
| IRS990ScheduleJ/CompBsdNetEarnsRltdOrgsInd | 0 | 0 |
| IRS990ScheduleJ/CompBsdOnRevRelatedOrgsInd | 0 | 0 |
| IRS990ScheduleJ/CompensationSurveyInd | 0 | X |
| IRS990ScheduleJ/EquityBasedCompArrngmInd | 0 | 0 |
| IRS990ScheduleJ/InitialContractExceptionInd | 0 | 0 |
| IRS990/ScheduleJRequiredInd | 0 | 1 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BaseCompensationFilingOrgAmt | 0 | 159443 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusFilingOrganizationAmount | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusRelatedOrganizationsAmt | 0 | 0 |
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| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990RltdOrgsAmt | 0 | 0 |
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| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompRltdOrgsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsFilingOrgAmt | 0 | 13485 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsRltdOrgsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/OtherCompensationFilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/OtherCompensationRltdOrgsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/PersonNm | 0 | ANNE SCHMITZ |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TitleTxt | 0 | EXECUTIVE DIRECTOR |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TotalCompensationFilingOrgAmt | 0 | 172928 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TotalCompensationRltdOrgsAmt | 0 | 0 |
| IRS990ScheduleJ/SeverancePaymentInd | 0 | 0 |
| IRS990ScheduleJ/SupplementalInformationDetail/ExplanationTxt | 0 | THE ORGANIZATION HAS ADOPTED A PROCESS FOR DETERMINING EXECUTIVE COMPENSATION. THE BOARD REVIEWS THE EXECUTIVE DIRECTOR'S COMPENSATION ON AN ANNUAL BASIS, TAKING INTO ACCOUNT HER PERFORMANCE, AS WELL AS THE COMPENSATION RECEIVED FROM SIMILAR EXECUTIVE'S WITH SIMILAR DUTIES FROM SIMILAR ORGANIZATIONS. THE ORGANIZATION UTILIZES SALARY SURVEYS TO HELP WITH THIS ANALYSIS. |
| IRS990ScheduleJ/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART I, LINE 3 |
| IRS990ScheduleJ/SupplementalNonqualRtrPlanInd | 0 | 0 |
| IRS990/ScheduleORequiredInd | 0 | 1 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | THE FORM 990 IS PREPARED BY AN ACCOUNTING FIRM AND THEN REVIEWED BY MANAGEMENT. MATERIALLY COMPLETE DRAFT FORMS 990 ARE MADE AVAILABLE TO EACH MEMBER OF THE BOARD OF DIRECTORS OF THE ORGANIZATION FOR THEIR REVIEW AND QUESTION. ANY COMMENTS OR QUESTIONS RECEIVED FROM THE BOARD ARE INCORPORATED INTO THE FINAL, FILED FORM 990. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | THE ORGANIZATION HAS ADOPTED A WRITTEN CONFLICT OF INTEREST POLICY. PURSUANT TO THIS POLICY, BOARD MEMBERS, OFFICERS, MANAGEMENT, AND KEY EMPLOYEES HAVE AN ONGOING OBLIGATION TO DISCLOSE THE EXISTENCE OF ANY ACTUAL OR POTENTIAL CONFLICT TO THE BOARD OF DIRECTORS. THE ORGANIZATION MONITORS BOARD MEMBERS, OFFICERS, MANAGEMENT AND KEY EMPLOYEES'S COMPLIANCE WITH THE CONFLICT OF INTEREST POLICY, IN ORDER TO ATTEMPT TO AVOID CONFLICTS OF INTEREST FROM OCCURRING. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | THE ORGANIZATION HAS ADOPTED A PROCESS FOR DETERMINING EXECUTIVE COMPENSATION. THE BOARD REVIEWS THE EXECUTIVE DIRECTOR'S COMPENSATION ON AN ANNUAL BASIS, TAKING INTO ACCOUNT HER PERFORMANCE, AS WELL AS THE COMPENSATION RECEIVED FROM SIMILAR EXECUTIVE'S WITH SIMILAR DUTIES FROM SIMILAR ORGANIZATIONS. THE ORGANIZATION UTILIZES SALARY SURVEYS TO HELP WITH THIS ANALYSIS. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | THE ORGANIZATION COMPLIES WITH ALL LEGAL REQUIREMENTS FOR PUBLIC DISCLOSURE. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | FORM 990, PART VI, SECTION B, LINE 11 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | FORM 990, PART VI, SECTION B, LINE 12C |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | FORM 990, PART VI, SECTION B, LINE 15A |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | FORM 990, PART VI, SECTION C, LINE 19 |
| IRS990/SchoolOperatingInd | 0 | 0 |
| IRS990/SignificantChangeInd | 0 | 0 |
| IRS990/SignificantNewProgramSrvcInd | 0 | 0 |
| IRS990/StatesWhereCopyOfReturnIsFldCd | 0 | MD |
| IRS990/SubjectToProxyTaxInd | 0 | 0 |
| IRS990/TaxablePartyNotificationInd | 0 | 0 |
| IRS990/TaxExemptBondsInd | 0 | 0 |
| IRS990/TempOrPermanentEndowmentsInd | 0 | 0 |
| IRS990/TerminateOperationsInd | 0 | 0 |
| IRS990/TotalAssetsBOYAmt | 0 | 3008796 |
| IRS990/TotalAssetsEOYAmt | 0 | 3568053 |