| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 380909 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 249203 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 962029 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 869460 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | Gateway is a game changer for Alabama children and families. |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 2470 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 2470 |
| IRS990/AllOtherContributionsAmt | 0 | 1159744 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 91253 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 74156 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 165409 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | John Brack |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 2055102615 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 1401 20th Street South |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | Birmingham |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | AL |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 35205 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 761500 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 92887 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 168721 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 232811 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 401532 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 6428 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 10156 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 16584 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/CreditCounselingInd | 0 | 1 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 2490237 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 211386 |
| IRS990/CYOtherExpensesAmt | 0 | 3505939 |
| IRS990/CYOtherRevenueAmt | 0 | 11296 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 5437963 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | -153189 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 4798132 |
| IRS990/CYTotalExpensesAmt | 0 | 8304071 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 8150882 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 104819 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 7040 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 119050 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 194607 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 313657 |
| IRS990/Desc | 0 | Residential Program: Gateway's historic residential campus began as Birmingham's original orphanage and first social services agency: The Mercy Home. In 2018, this program serves youth ages 12-18 from significant backgrounds of trauma. Youth residing on campus receive specialized mental health and education services to heal, return to family, and become strong young adults. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 184 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/EscrowAccountLiabilityGrp/BOYAmt | 0 | 9511 |
| IRS990/EscrowAccountLiabilityGrp/EOYAmt | 0 | 9157 |
| IRS990/ExpenseAmt | 0 | 2126169 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FederatedCampaignsAmt | 0 | 1152193 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 98788 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 98788 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 60882 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 60882 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 18449 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 357298 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 375747 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 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/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 | 19656 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 14976 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 11993 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | Keith Carter |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | Denson Franklin III |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | Elizabeth Goodrich |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | Tom Thompson |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | Maeci Walker |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | James McCrary |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | Kathryn O'Day |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | Cathy Jenkins |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | John Brack |
| 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 | 207016 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 7 | 108163 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 68988 |
| 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/TitleTxt | 0 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | Vice Chairman |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | Secretary |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | Chairman |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | CEO/President |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | EVP |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | Director of Accounting |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1891 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GainOrLossGrp/OtherAmt | 0 | -5528 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 6 |
| IRS990/GovernmentGrantsAmt | 0 | 178300 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 247033 |
| IRS990/GrossReceiptsAmt | 0 | 8403443 |
| IRS990/GrossRentsGrp/RealAmt | 0 | 6480 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 6 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 2 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIInd | 0 | X |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 21851 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 177731 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 199582 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 47960 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 131584 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 179544 |
| IRS990/InterestGrp/ManagementAndGeneralAmt | 0 | 77310 |
| IRS990/InterestGrp/TotalAmt | 0 | 77310 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 216914 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 216914 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 5214699 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 5594513 |
| IRS990/IRPDocumentCnt | 0 | 32 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 2337324 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 5777170 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 3239955 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 5577279 |
| IRS990/LegalDomicileStateCd | 0 | AL |
| IRS990/LessCostOthBasisSalesExpnssGrp/OtherAmt | 0 | 5528 |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 247033 |
| IRS990/LessRentalExpensesGrp/RealAmt | 0 | 0 |
| 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 | Gateway is a game changer for Alabama children and families. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/BOYAmt | 0 | 1907223 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/EOYAmt | 0 | 1709651 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 32717679 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 32830866 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | -5528 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | -5528 |
| IRS990/NetRentalIncomeOrLossGrp/ExclusionAmt | 0 | 6480 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 6480 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 538441 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 205582 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 205582 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 3195 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 74019 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 77214 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 22561618 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 25076957 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | -272065 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 34930 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 531567 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 566497 |
| IRS990/OtherExpensesGrp/Desc | 0 | Client services |
| IRS990/OtherExpensesGrp/Desc | 1 | Building and ground mai |
| IRS990/OtherExpensesGrp/Desc | 2 | Utilities |
| IRS990/OtherExpensesGrp/Desc | 3 | Workers' compensation |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 4950 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 777484 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 331378 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 302157 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 72440 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 782434 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 331378 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 302157 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 72440 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 318717 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 261782 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 624100 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | Miscellaneous Income |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 4816 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 4816 |
| IRS990/OtherRevenueTotalAmt | 0 | 4816 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 218258 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 3281398 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 3499656 |
| IRS990/OwnWebsiteInd | 0 | X |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 26310 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 304137 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 330447 |
| IRS990/PermanentlyRstrNetAssetsGrp/BOYAmt | 0 | 22553193 |
| IRS990/PermanentlyRstrNetAssetsGrp/EOYAmt | 0 | 23063052 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 81388 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 87968 |
| IRS990/PrincipalOfficerNm | 0 | Kathryn O'Day |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 624100 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 624100 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 2 | 624100 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | Medicaid Revenue |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | Contract Revenue |
| IRS990/ProgramServiceRevenueGrp/Desc | 2 | Program Service Fees |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 3299607 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 2078801 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 2 | 59555 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 3299607 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 2078801 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 2 | 59555 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | Foster Care Programs (Therapeutic Foster Care and Independent Living Program): Our founders had the foresight to know that without permanent family connections, children's health, education, safety and financial stability are significantly at risk. For more than 125 years, Gateway has committed its mission and services to helping children be in safe, permanent families. In 2018, Gateway helped more than 50 foster children safely return to their families. Twelve were adopted into forever homes. Additionally, Gateway exceeds national statistics helping teens in foster care gain employment and graduate from high school. |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 3220058 |
| IRS990/ProgSrvcAccomActy2Grp/RevenueAmt | 0 | 2506748 |
| IRS990/ProgSrvcAccomActy3Grp/Desc | 0 | Family and Financial Counseling (Intensive In-Home Services Program, Shelby County Wraparound, Go2U School Therapy and Gateway Financial Freedom): Gateway has a proven track record helping families care for one another, reach their financial goals and heal trauma. In 2018, Gateway helped more than 100 families stay together through family counseling services. Additionally, families paid back more than $570,000 of debt to creditors and 26 avoided foreclosure through Gateway's financial counseling services. |
| IRS990/ProgSrvcAccomActy3Grp/ExpenseAmt | 0 | 1954388 |
| IRS990/ProgSrvcAccomActy3Grp/RevenueAmt | 0 | 1404988 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 2586929 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/PYInvestmentIncomeAmt | 0 | 221793 |
| IRS990/PYOtherExpensesAmt | 0 | 3922213 |
| IRS990/PYOtherRevenueAmt | 0 | 38166 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 6870521 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 163518 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 5631678 |
| IRS990/PYTotalExpensesAmt | 0 | 9553891 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 9717409 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | -153189 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 0 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/RentalIncomeOrLossGrp/RealAmt | 0 | 6480 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |
| IRS990/ReportOtherAssetsInd | 0 | 1 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 1 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RevenueAmt | 0 | 1531043 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 80454 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 105959 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 2490237 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 2586929 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 2496851 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 2418303 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 2711259 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 12703579 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt | 0 | 223394 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus1YearAmt | 0 | 223633 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 168309 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 178499 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 158533 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt | 0 | 952368 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0.63960 |
| IRS990ScheduleA/PublicSupportPY170Pct | 0 | 0.64770 |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 8734908 |
| IRS990ScheduleA/SubstantialContributorsTotAmt | 0 | 3968671 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY170Ind | 0 | X |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt | 0 | 2490237 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt | 0 | 2586929 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 2496851 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 2418303 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 2711259 |
| IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt | 0 | 12703579 |
| IRS990ScheduleA/TotalSupportAmt | 0 | 13655947 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine2 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/State | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 0 | RESTRICTED |
| IRS990/ScheduleBRequiredInd | 0 | 1 |
| IRS990ScheduleD/AgentTrusteeEtcInd | 0 | 0 |
| IRS990ScheduleD/BuildingsGrp/BookValueAmt | 0 | 2243610 |
| IRS990ScheduleD/BuildingsGrp/DepreciationAmt | 0 | 1899866 |
| IRS990ScheduleD/BuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 4143476 |
| IRS990ScheduleD/EquipmentGrp/BookValueAmt | 0 | 80512 |
| IRS990ScheduleD/EquipmentGrp/DepreciationAmt | 0 | 374102 |
| IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt | 0 | 454614 |
| IRS990ScheduleD/ExpensesNotReportedAmt | 0 | 272065 |
| IRS990ScheduleD/ExpensesNotRptFinclStmtAmt | 0 | 25829 |
| IRS990ScheduleD/ExpensesSubtotalAmt | 0 | 8278242 |
| IRS990ScheduleD/ExplanationProvidedInd | 0 | X |
| IRS990ScheduleD/InclEscrowCustodialAcctLiabInd | 0 | 1 |
| IRS990ScheduleD/InvestmentExpensesNotIncld2Amt | 0 | 25829 |
| IRS990ScheduleD/InvestmentExpensesNotIncldAmt | 0 | 25829 |
| IRS990ScheduleD/LandGrp/BookValueAmt | 0 | 906135 |
| IRS990ScheduleD/LandGrp/OtherCostOrOtherBasisAmt | 0 | 906135 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/BookValueAmt | 0 | 0 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/DepreciationAmt | 0 | 7652 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/OtherCostOrOtherBasisAmt | 0 | 7652 |
| IRS990ScheduleD/NetUnrealizedGainsInvstAmt | 0 | 28582 |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 0 | 23063052 |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 1 | 11178 |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 2 | 2000000 |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 3 | 2727 |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 0 | Beneficial interest in perpetual trusts |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 1 | Refundable deposits-Program Rent |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 2 | Assets held for sale |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 3 | Accrued interest receivable |
| IRS990ScheduleD/OtherExpensesIncludedAmt | 0 | 272065 |
| IRS990ScheduleD/OtherLandBuildingsGrp/BookValueAmt | 0 | 9698 |
| IRS990ScheduleD/OtherLandBuildingsGrp/DepreciationAmt | 0 | 55704 |
| IRS990ScheduleD/OtherLandBuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 65402 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 0 | 261782 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 0 | Compensated absences |
| IRS990ScheduleD/OtherRevenueAmt | 0 | 509859 |
| IRS990ScheduleD/RevenueNotReportedAmt | 0 | 538441 |
| IRS990ScheduleD/RevenueNotReportedFinclStmtAmt | 0 | 25829 |
| IRS990ScheduleD/RevenueSubtotalAmt | 0 | 8125053 |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 0 | The Organization provides credit counseling services to the general public. The Organization collects funds from client, holds these funds in bank accounts, and makes debt payments on behalf of the clients. The amounts held for clients for payment of debt (related to debt counseling) are included on Form 990 Part X (Balance Sheet) Line 21. |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 1 | Change in Value of Beneficial Interest in Perpetual Trusts 509,859. |