| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 193264 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 239547 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 12856 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 4704 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | AN ACADEMIC COMMUNITY DESIGNED TO STRETCH, SUPPORT AND INSPIRE EARLY ADOLESCENT LEARNERS. |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 151 |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 9144 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 9295 |
| IRS990/AllOtherContributionsAmt | 0 | 3245207 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | KRISTIN KNOPF |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 2065474614 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 7217 WOODLAWN AVE NE |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | SEATTLE |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | WA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 98115 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 1 |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 43862 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 149366 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 69481 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 249647 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 50532 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 369660 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConferencesMeetingsGrp/FundraisingAmt | 0 | 12 |
| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 10577 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 17212 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 27801 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/ContriRptFundraisingEventAmt | 0 | 115275 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 3360482 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 567472 |
| IRS990/CYInvestmentIncomeAmt | 0 | 6435 |
| IRS990/CYOtherExpensesAmt | 0 | 696954 |
| IRS990/CYOtherRevenueAmt | 0 | -22778 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 2789005 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 3013190 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 1855528 |
| IRS990/CYTotalExpensesAmt | 0 | 3119954 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 201578 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 6133144 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 1 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 779385 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 853510 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 3237 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 3572 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 93622 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 100431 |
| IRS990/Desc | 0 | BILLINGS MIDDLE SCHOOL IS A DYNAMIC ACADEMIC COMMUNITY INTENTIONALLYDESIGNED TO STRETCH, SUPPORT AND INSPIRE EARLY ADOLESCENT LEARNERS.STUDENTS DEVELOP INTELLECT, CREATIVITY, POWERFUL COMMUNICATION AND COLLABORATION SKILLS, SELF-CONFIDENCE AND AN OPENNESS TO NEW INFORMATION. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 47 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 2239666 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 3710 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 3710 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 3992 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 3992 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 4699 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 17819 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 27608 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 50126 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 2.00 |
| 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 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 2.00 |
| 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 | 50.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 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/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/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 | 17986 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 17 | 15118 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | HEIDI ROBINSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | JOHN NEELEMAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | MEAGAN WALKER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | THOMAS PARKHURST |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | GABRIEL CASTILLO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | JESSICA GRAYBILL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | HOWARD KLEIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | AMELIA MARCKWORTH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | MICHAEL MARTIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | MICHELLE MARTIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | MELINDA MOREE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | PATRICIA PEARCE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | DEMETRICS TUKES |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | STACY TURNER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | JAMES WALLEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | EVAN WONG |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | ANNE-EVAN WILLIAMS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | KRISTIN KNOPF |
| 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 | 202289 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 17 | 96845 |
| 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/TitleTxt | 0 | CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | VICE CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | HEAD OF SCHOOL |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | BUSINESS OFFICER |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 0 |
| IRS990/Form990TFiledInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1980 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 1 |
| IRS990/FundraisingAmt | 0 | 115275 |
| IRS990/FundraisingDirectExpensesAmt | 0 | 42162 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 19055 |
| IRS990/GainOrLossGrp/OtherAmt | 0 | -16720 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 1844 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 14 |
| IRS990/GrantAmt | 0 | 567472 |
| IRS990/GrantsToDomesticIndividualsGrp/ProgramServicesAmt | 0 | 567472 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 567472 |
| IRS990/GrantsToIndividualsInd | 0 | 1 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 1 |
| IRS990/GrossAmountSalesAssetsGrp/OtherAmt | 0 | 66877 |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 384738 |
| IRS990/GrossReceiptsAmt | 0 | 6641797 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 14 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 1 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIIInd | 0 | X |
| IRS990/InformationTechnologyGrp/FundraisingAmt | 0 | 2757 |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 11187 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 27711 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 41655 |
| IRS990/InsuranceGrp/FundraisingAmt | 0 | 707 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 5936 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 18913 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 25556 |
| IRS990/IntangibleAssetsGrp/BOYAmt | 0 | 24383 |
| IRS990/IntangibleAssetsGrp/EOYAmt | 0 | 0 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 21311 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 21311 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsProgramRelatedGrp/BOYAmt | 0 | 898048 |
| IRS990/InvestmentsProgramRelatedGrp/EOYAmt | 0 | 720520 |
| IRS990/IRPDocumentCnt | 0 | 18 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 2402902 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 2001391 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 2265623 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 4668525 |
| IRS990/LegalDomicileStateCd | 0 | WA |
| IRS990/LessCostOthBasisSalesExpnssGrp/OtherAmt | 0 | 83597 |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 382894 |
| 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 | BILLINGS MIDDLE SCHOOL IS A DYNAMIC ACADEMIC COMMUNITY INTENTIONALLY DESIGNED TO STRETCH, SUPPORT AND INSPIRE EARLY ADOLESCENT LEARNERS. STUDENTS DEVELOP INTELLECT, CREATIVITY, COMMUNICATION AND COLLABORATION SKILLS, SELF-CONFIDENCE AND AN OPENNESS TO NEW INFORMATION. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 3186826 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 6200016 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | -14876 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | -14876 |
| IRS990/NetIncmFromFundraisingEvtGrp/ExclusionAmt | 0 | -23107 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | -23107 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 4629 |
| IRS990/NoncashContributionsAmt | 0 | 2684552 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 17624 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 28052 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 201057 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 246733 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 25338 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 19253 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 19091 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 63682 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 16100 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 16350 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 12513 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 38696 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 85795 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 137004 |
| IRS990/OtherExpensesGrp/Desc | 0 | CLASSROOM MATERIALS |
| IRS990/OtherExpensesGrp/Desc | 1 | MASTER USE PERMIT EXPEN |
| IRS990/OtherExpensesGrp/Desc | 2 | DUES AND LICENSES |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 20 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 30000 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 6316 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 33951 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 3776 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 33951 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 30000 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 10112 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | MISCELLANEOUS |
| IRS990/OtherRevenueMiscGrp/ExclusionAmt | 0 | 329 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 329 |
| IRS990/OtherRevenueTotalAmt | 0 | 329 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 52393 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 194706 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 930078 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 1177177 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 9255 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 34375 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 85580 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 129210 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 3391 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 10170 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 28916 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 42477 |
| IRS990/PermanentlyRstrNetAssetsGrp/BOYAmt | 0 | 595482 |
| IRS990/PermanentlyRstrNetAssetsGrp/EOYAmt | 0 | 600054 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 607627 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 2537057 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 27878 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 40454 |
| IRS990/PrincipalOfficerNm | 0 | ANNE-EVAN WILLIAMS |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 611110 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 611110 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | TUITION |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | PROGRAM FEES |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 2725455 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 63550 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 2725455 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 63550 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 525917 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 562783 |
| IRS990/PYInvestmentIncomeAmt | 0 | -120000 |
| IRS990/PYOtherExpensesAmt | 0 | 705085 |
| IRS990/PYOtherRevenueAmt | 0 | -14299 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 2901865 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 381000 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 1644615 |
| IRS990/PYTotalExpensesAmt | 0 | 2912483 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 3293483 |
| IRS990/QuidProQuoContributionsInd | 0 | 1 |
| IRS990/QuidProQuoContriDisclInd | 0 | 1 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 3013190 |
| 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 | 0 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 1 |
| IRS990/RevenueAmt | 0 | 2789005 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 1394597 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 1558999 |
| IRS990ScheduleA/SchoolInd | 0 | X |
| IRS990/ScheduleBRequiredInd | 0 | 1 |
| IRS990ScheduleD/BoardDesignatedBalanceEOYPct | 0 | 0.00000 |
| IRS990ScheduleD/CYEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 595482 |
| IRS990ScheduleD/CYEndwmtFundGrp/ContributionsAmt | 0 | 175 |
| IRS990ScheduleD/CYEndwmtFundGrp/EndYearBalanceAmt | 0 | 600054 |
| IRS990ScheduleD/CYEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | 4397 |