| IRS990/AccountantCompileOrReviewInd | 0 | false |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 274534 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 63641 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 289567 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 209438 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | PHI SIGMA SIGMAS MISSION IS TO INSPIRE THE PERSONAL DEVELOPMENT OF EACH SISTER AND PERPETUATE THE ADVANCEMENT OF WOMANHOOD. |
| IRS990/AllOtherContributionsAmt | 0 | 2650 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | true |
| IRS990/BackupWthldComplianceInd | 0 | true |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | MICHELLE ARDERN |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 4107991224 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 8178 LARK BROWN ROAD STE 202 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | ELKRIDGE |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MD |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 21075 |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 1903124 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 1861513 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 3 |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 129880 |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | false |
| IRS990/CompensationProcessOtherInd | 0 | false |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 300286 |
| IRS990/ConflictOfInterestPolicyInd | 0 | true |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 119425 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 1 | 129943 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 2 | 194770 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | PO BOX 50435 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 1 | 400 9TH ST APT W-5-H |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 2 | PO BOX 99292 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | INDIANAPOLIS |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 1 | HOBOKEN |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 2 | CHICAGO |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | IN |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 1 | NJ |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 2 | IL |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 46250 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 1 | 07030 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 2 | 60693 |
| IRS990/ContractorCompensationGrp/ContractorName/PersonNm | 0 | MJ INSURANCE |
| IRS990/ContractorCompensationGrp/ContractorName/PersonNm | 1 | GREEK LABEL LLC |
| IRS990/ContractorCompensationGrp/ContractorName/PersonNm | 2 | HERFF JONES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | INSURANCE PRODUCTS |
| IRS990/ContractorCompensationGrp/ServicesDesc | 1 | CONSSPECIAL SPPLS |
| IRS990/ContractorCompensationGrp/ServicesDesc | 2 | JEWELRYAWARDS |
| IRS990/CostOfGoodsSoldAmt | 0 | 161161 |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 2060045 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 178476 |
| IRS990/CYOtherExpensesAmt | 0 | 2034687 |
| IRS990/CYOtherRevenueAmt | 0 | 419392 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 475940 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | -154977 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 1254143 |
| IRS990/CYTotalExpensesAmt | 0 | 3288830 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 3133853 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 74726 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 201290 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 49945 |
| IRS990/Desc | 0 | CHAPTER SUPERVISION FOR A PREMIERE MEMBERSHIP EXPERIENCE FOR 8,834 COLLEGIANS ON 101 COLLEGIATE CAMPUSES AND APPROXIMATELY 63,000 LIVING ALUMNAE MEMBERS. |
| IRS990/DescribedInSection501c3Ind | 0 | false |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | true |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | true |
| IRS990/EmployeeCnt | 0 | 32 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | true |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 1830 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 99414 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 191350 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 24237 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 1 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 2 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 3 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 4 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 5 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 6 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 7 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 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/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | 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 | 11220 |
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| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | TESS STOVALL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | WENDY LAU |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | BRENEZZA GARCIA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | JENNIFER WILSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | CARA WOOD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | MARGARET BAKER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | MICHELLE ARDERN |
| 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 | 113057 |
| 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 | VICE PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | EXECUTIVE DIRECTOR |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/Form990TFiledInd | 0 | true |
| IRS990/FormationYr | 0 | 1913 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedInd | 0 | false |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 138908 |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 7 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 1471784 |
| IRS990/GrossReceiptsAmt | 0 | 4666193 |
| IRS990/GrossReceiptsForPublicUseAmt | 0 | 0 |
| IRS990/GrossRentsGrp/RealAmt | 0 | 45323 |
| IRS990/GrossSalesOfInventoryAmt | 0 | 268239 |
| IRS990/GroupExemptionNum | 0 | 0942 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 7 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 1 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartIXInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 109587 |
| IRS990/InitiationFeesAndCapContriAmt | 0 | 0 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 119517 |
| IRS990/InterestGrp/TotalAmt | 0 | 31547 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 331 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 39568 |
| IRS990/InvestmentIncomeGrp/UnrelatedBusinessRevenueAmt | 0 | 39237 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 3804008 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 4067507 |
| IRS990/IRPDocumentCnt | 0 | 23 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 304122 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 1133544 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 1083599 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 1387721 |
| IRS990/LegalDomicileStateCd | 0 | NY |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 1332876 |
| IRS990/LessRentalExpensesGrp/RealAmt | 0 | 38303 |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | true |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembershipDuesAmt | 0 | 1933318 |
| IRS990/MembersOrStockholdersInd | 0 | true |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | false |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | PHI SIGMA SIGMAS MISSION IS TO INSPIRE THE PERSONAL DEVELOPMENT OF EACH SISTER AND PERPETUATE THE ADVANCEMENT OF WOMANHOOD. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 3236208 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 3089126 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 138908 |
| IRS990/NetGainOrLossInvestmentsGrp/UnrelatedBusinessRevenueAmt | 0 | 138908 |
| IRS990/NetIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 107078 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 107078 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 7020 |
| IRS990/NetRentalIncomeOrLossGrp/UnrelatedBusinessRevenueAmt | 0 | 7020 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 7895 |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/TotalAmt | 0 | 75425 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 103291 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501cInd | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 64492 |
| IRS990/OtherExpensesGrp/Desc | 0 | BANK CHARGES |
| IRS990/OtherExpensesGrp/Desc | 1 | CHAPTER PROGRAMMING |
| IRS990/OtherExpensesGrp/Desc | 2 | MISCELLANEOUS |
| IRS990/OtherExpensesGrp/Desc | 3 | TAXES |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 43745 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 313125 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 1246 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 311 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 43745 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 313125 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 1246 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 311 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 3441809 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 3553635 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | MANAGEMENT-AFFILIATES |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 173026 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 173026 |
| IRS990/OtherRevenueTotalAmt | 0 | 173026 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 967416 |
| IRS990/OthNotesLoansReceivableNetGrp/BOYAmt | 0 | 72632 |
| IRS990/OthNotesLoansReceivableNetGrp/EOYAmt | 0 | 72632 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 92355 |
| IRS990/PoliciesReferenceChaptersInd | 0 | true |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 33882 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 14749 |
| IRS990/PrincipalOfficerNm | 0 | MARY KATHLEEN WONNENBERG |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 900099 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | CONVENTION |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 475940 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 475940 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | EDUCATIONAL PROGRAMMING AT LEADERSHIP CONFERENCES ALIGNED WITH THE FRATERNITY MISSION OF PROVIDING A PREMIER MEMBERSHIP EXPERIENCE FOCUSED ON PERSONAL DEVELOPMENT, LIFE SKILLS, AND LEADERSHIP. IN FISCAL YEAR 2018, 5 CONFERENCES WERE HELD WITH 682 ATTENDEES. BIENNIAL NATIONAL CONVENTIONS (LAST HELD IN FISCAL YEAR 2017) COLLEGIATE CHAPTER OFFICERS AND ALUMNAE CONVENE TO CONDUCT BUSINESS OF THE FRATERNITY AND ATTEND EDUCATIONAL SESSIONS. |
| IRS990/ProgSrvcAccomActy3Grp/Desc | 0 | NEW CHAPTER DEVELOPMENT ON ONE CAMPUS - JAMES MADISON UNIVERSITY, OFFERING OVER 100 WOMEN THE OPPORTUNITY FOR SISTERHOOD, SERVICE AND SCHOLARSHIP. |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 2596924 |
| IRS990/PYInvestmentIncomeAmt | 0 | 41238 |
| IRS990/PYOtherExpensesAmt | 0 | 2521318 |
| IRS990/PYOtherRevenueAmt | 0 | 387340 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 1003028 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 479499 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 1027713 |
| IRS990/PYTotalExpensesAmt | 0 | 3549031 |
| IRS990/PYTotalRevenueAmt | 0 | 4028530 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | -154977 |
| IRS990/RegularMonitoringEnfrcInd | 0 | true |
| IRS990/RelatedEntityInd | 0 | true |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | true |
| IRS990/RelatedOrganizationsAmt | 0 | 124077 |
| IRS990/RentalIncomeOrLossGrp/RealAmt | 0 | 7020 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | true |
| IRS990/ReportOtherAssetsInd | 0 | false |
| IRS990/ReportOtherLiabilitiesInd | 0 | true |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/RoyaltiesRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 132268 |
| IRS990/RoyaltiesRevenueGrp/TotalRevenueColumnAmt | 0 | 132268 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 715784 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 576518 |
| IRS990/ScheduleBRequiredInd | 0 | false |
| IRS990ScheduleD/BuildingsGrp/BookValueAmt | 0 | 987377 |
| IRS990ScheduleD/BuildingsGrp/DepreciationAmt | 0 | 228344 |
| IRS990ScheduleD/BuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 1215721 |
| IRS990ScheduleD/EquipmentGrp/BookValueAmt | 0 | 96222 |
| IRS990ScheduleD/EquipmentGrp/DepreciationAmt | 0 | 70162 |
| IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt | 0 | 166384 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/DepreciationAmt | 0 | 5616 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/OtherCostOrOtherBasisAmt | 0 | 5616 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 0 | 1077574 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 1 | 2000 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 2 | 2474061 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 0 | DUE TO RELATED ENTITIES |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 1 | SECURITY DEPOSIT |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 2 | CHAPTER RESERVES |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 1083599 |
| IRS990ScheduleD/TotalLiabilityAmt | 0 | 3553635 |
| IRS990/ScheduleJRequiredInd | 0 | false |
| IRS990/ScheduleORequiredInd | 0 | true |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | ALL COLLEGIATE AND ALUMNAE MEMBERS WHO PAY INTERNATIONAL DUES, ARE IN GOOD STANDING WITH THE FRATERNITY, AND WHO HAVE FURNISHED THE FRATERNITY WITH THEIR CURRENT MAILING ADDRESS WILL BE ENTITLED TO VOTE FOR SUPREME COUNCIL MEMBERSVOTING ON RESOLUTIONS AND AMENDMENTS TO THE FRATERNITYS CONSTITUTION AND BYLAWS SHALL BE WEIGHTED BASED ON THE NUMBER OF VOTING MEMBERS AT A PARTICULAR CONVENTION. COLLEGIATE VOTES WILL BE WEIGHTED IN SUCH A MANNER TO ACCOUNT FOR 51% OF THE TOTAL VOTE, WHILE ALUMNAE DELEGATE VOTES WILL ACCOUNT FOR 49% OF THE TOTAL VOTE.ALL COLLEGIATE CHAPTERS SHALL BE IN GOOD FINANCIAL STANDING IN ORDER TO VOTE. EACH COLLEGIATE AND ALUMNAE DELEGATE, EACH CHAPTER KEY ADVISOR, EACH STANDING COMMITTEE CHAIR, AND EACH SUPREME COUNCIL MEMBER SHALL BE ENTITLED TO ONE VOTE IF THE CHAPTER OR MEMBER IS IN GOOD STANDING WITH THE FRATERNITY. NO DELEGATE SHALL VOTE IN MORE THAN ONE CAPACITY. QUORUM SHALL CONSIST OF 100 VOTING MEMBERS. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | MEMBERS VOTE FOR CERTAIN OFFICERS EVERY TWO YEARS. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | COMMITTEES DO NOT KEEP CONTEMPORANEOUS MEETING MINUTES. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | THE ORGANIZATION SENT A DRAFT OF THE TAX RETURN TO THE OFFICERS AND BOARD MEMBERS FOR REVIEW. ANY QUESTIONS ARE ANSWERED BY THE TREASURER OR THE TAX PREPARER. UPON EXPLANATION OF THE QUESTIONS AND/OR CHANGES TO THE RETURN, A FINAL VERSION IS APPROVED BY THE OFFICERS AND BOARD MEMBERS. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 4 | TO ENSURE PSS OPERATES IN A MANNER CONSISTENT WITH 501(C)(7) PURPOSES AND DOES NOT ENGAGE IN ACTIVITIES THAT COULD JEOPARDIZE ITS TAX-EXEMPT STATUS, PERIODIC REVIEWS SHALL BE CONDUCTED. THE PERIODIC REVIEWS SHALL, AT A MINIMUM, INCLUDE THE FOLLOWING SUBJECTS:- WHETHER COMPENSATION ARRANGEMENTS AND BENEFITS ARE REASONABLE, BASED ON COMPETENT SURVEY INFORMATION AND THE RESULT OF ARMS LENGTH BARGAINING;- WHETHER PARTNERSHIPS, JOINT VENTURES, AND ARRANGEMENTS WITH MANAGEMENT CONFORMS TO PSSS WRITTEN POLICIES, ARE PROPERLY RECORDED, REFLECT REASONABLE INVESTMENT OR PAYMENTS FOR GOODS AND SERVICES, FURTHER CHARITABLE PURPOSES AND DO NOT RESULT IN INUREMENT, IMPERMISSABLE PRIVATE BENEFIT, OR IN AN EXCESS BENEFIT TRANSACTION.WHEN CONDUCTING THE OUTSIDE REVIEWS, PSS MAY, BUT NEED NOT, USE OUTSIDE ADVISORS. IF OUTSIDE EXPERTS ARE USED, THEIR USE SHALL NOT RELIEVE THE GOVERNING BOARD OF ITS RESPONSIBILITY FOR ENSURING PERIODIC REVIEWS ARE CONDUCTED. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 5 | THESE DOCUMENTS WOULD ONLY BE MADE AVAILABLE UPON REQUEST AND APPROVAL TO RELEASE. FOR EXAMPLE, UNIVERSITIES MAY REQUEST THE DOCUMENTS. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 6 | CONSULTANTS: 133,644EVENT MANAGEMENT: 42,694BENEFITS ADMINISTRATION: 6,538EMPLOYMENT SERVICES: 8,474 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Members or stockholder classes and rights Part VI line 6 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | Member election for additional members Part VI line 7a |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | Committee meeting documentation Part VI line 8b |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | Form 990 governing body review Part VI line 11 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 4 | Conflict of interest policy compliance Part VI line 12c |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 5 | Governing documents etc available to public Part VI line 19 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 6 | List of other fees for services expenses Part IX line 11g |
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| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingEntityName/BusinessNameLine1Txt | 1 | PHI SIGMA SIGMA INC |
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| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DisregardedEntityName/BusinessNameLine1Txt | 1 | PHI SIGMA SIGMA FOUNDATION INC |
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| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/EIN | 1 | 205942561 |
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| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/ExemptCodeSectionTxt | 1 | 501C3 |
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| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/USAddress/StateAbbreviationCd | 1 | MD |
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| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/USAddress/ZIPCd | 1 | 21075 |
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| IRS990ScheduleR/RentalOfFacilitiesToOthOrgInd | 0 | false |
| IRS990ScheduleR/RentalOfFcltsFromOthOrgInd | 0 | true |
| IRS990ScheduleR/SharingOfFacilitiesInd | 0 | true |
| IRS990ScheduleR/TransactionsRelatedOrgGrp/InvolvedAmt | 0 | 79911 |
| IRS990ScheduleR/TransactionsRelatedOrgGrp/InvolvedAmt | 1 | 82042 |
| IRS990ScheduleR/TransactionsRelatedOrgGrp/MethodOfAmountDeterminationTxt | 0 | BASED ON OP AGRMT & DIRECT UTILIZATION |
| IRS990ScheduleR/TransactionsRelatedOrgGrp/MethodOfAmountDeterminationTxt | 1 | BASED ON OP AGMT & TIMESHEETS |
| IRS990ScheduleR/TransactionsRelatedOrgGrp/OtherOrganizationName/BusinessNameLine1Txt | 0 | PHI SIGMA SIGMA FOUNDATION INC |
| IRS990ScheduleR/TransactionsRelatedOrgGrp/OtherOrganizationName/BusinessNameLine1Txt | 1 | PHI SIGMA SIGMA NATIONAL HOUSING CO |
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| IRS990ScheduleR/TransactionsRelatedOrgGrp/TransactionTypeTxt | 1 | Q |
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| IRS990/TaxablePartyNotificationInd | 0 | false |
| IRS990/TaxExemptBondsInd | 0 | false |
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| IRS990/TemporarilyRstrNetAssetsGrp/EOYAmt | 0 | 1447149 |
| IRS990/TempOrPermanentEndowmentsInd | 0 | false |
| IRS990/TerminateOperationsInd | 0 | false |
| IRS990/TotalAssetsBOYAmt | 0 | 7952541 |
| IRS990/TotalAssetsEOYAmt | 0 | 7885956 |
| IRS990/TotalAssetsGrp/BOYAmt | 0 | 7952541 |
| IRS990/TotalAssetsGrp/EOYAmt | 0 | 7885956 |
| IRS990/TotalCompGreaterThan150KInd | 0 | false |
| IRS990/TotalContributionsAmt | 0 | 2060045 |
| IRS990/TotalEmployeeCnt | 0 | 32 |
| IRS990/TotalFunctionalExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/TotalAmt | 0 | 3288830 |
| IRS990/TotalGrossUBIAmt | 0 | 185165 |
| IRS990/TotalLiabilitiesBOYAmt | 0 | 4716333 |