| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 559108 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 427556 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 528287 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 472096 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | THE HAWAII STATE TEACHERS ASSOCIATION CONSISTS OF TEACHERS EMPLOYED BY THE STATE OF HAWAII - DEPARTMENT OF EDUCATION. THE ASSOCIATION SERVES AS THE EXCLUSIVE COLLECTIVE BARGINING AGENT FOR EMPLOYEES CLASSIFIED AS TEACHERS EMPLOYED BY THE STATE OF HAWAII, UNDER THE LAWS OF THE HAWAII PUBLIC EMPLOYEE BARGAINING ACT, TO NEGOTIATE AND ADMINISTER THE MEMBERS' CONTRACT, REPRESENT MEMBERS BEFORE THE STATE OF HAWAII CONCERNING GRIEVANCES, LABOR DISPUTES, WAGES, FRINGE BENEFITS, HOURS AND OTHER EMPLOYMENT CONDITIONS. |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 65879 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 395443 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | LOGAN OKITA |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 8088332711 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 1200 ALA KAPUNA STREET |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | HONOLULU |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | HI |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 96819 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 3 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 785901 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 1 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 287867 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 206654 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 1 | 114072 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 2 | 107301 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 99-122 HAPUKU ST |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 1 | PO BOX 970940 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 2 | 1003 BISHOP ST SUITE 2750 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | AIEA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 1 | WAIPAHU |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 2 | HONOLULU |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | HI |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 1 | HI |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 2 | HI |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 96701 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 1 | 96797 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 2 | 96813 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | THE KUPAA GROUP |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 1 | DELLEW CORPORATION |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 2 | ES&A INC A LAW CORPORATION |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | IT SERVICE |
| IRS990/ContractorCompensationGrp/ServicesDesc | 1 | IT & LOGISTICS |
| IRS990/ContractorCompensationGrp/ServicesDesc | 2 | LEGAL SERVICE |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 0 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 172795 |
| IRS990/CYOtherExpensesAmt | 0 | 3346071 |
| IRS990/CYOtherRevenueAmt | 0 | 174710 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 8968806 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 1431402 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 4538838 |
| IRS990/CYTotalExpensesAmt | 0 | 7884909 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 9316311 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 208361 |
| IRS990/Desc | 0 | SERVED HSTA MEMBERS AS THEIR EXCLUSIVE COLLECTIVE BARAINING AGENT, ADMINISTERED MEMBERS' CONTRACT NEGOTIATIONS WITH THE STATE OF HAWAAII CONCERNING GRIEVANCES, LABOR DISPUTES, WAGES, FRINGE BENEFITS, HOURS AND OTHER EMPLOYMENT CONDITIONS. THERE WERE 13,361 ACTIVE MEMBERS AS OF AUGUST 31, 2018. |
| IRS990/DescribedInSection501c3Ind | 0 | 0 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 1 |
| IRS990/EmployeeCnt | 0 | 43 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 206472 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 144035 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 91329 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 18 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 19 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 20 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 21 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 22 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 23 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 24 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 25 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 26 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 27 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 28 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 29 | 0.10 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 30 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 31 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 32 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 33 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 34 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 7 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 8 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 9 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 10 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 11 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 12 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 13 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 14 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 15 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 16 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 17 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 18 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 19 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 20 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 21 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 22 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 23 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 24 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 25 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 26 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 27 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 28 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 29 | 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/OfficerInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 36290 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 18 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 19 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 20 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 21 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 22 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 23 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 24 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 25 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 26 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 27 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 28 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 29 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 30 | 42639 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 31 | 36433 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 32 | 17848 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 33 | 37708 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 34 | 37577 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | COREY ROSENLEE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | OSA TUI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | LOGAN OKITA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | CLIFF FUKUDA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | KRISTI MIYAMAE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | AMANDA SEYMORE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | DANA SHISHIDO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | LOUISE CAYETANO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | RUTH DALISAY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | LAVERNE MOORE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | INGA PARK OKUNA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | SHIRLEY YAMAUCHI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | TERRY HOLCK |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | VICKIE PARKER KAM |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | AMBER RIEL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | CINDY TONG |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | BOBBYE YAMAMOTO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | MICAH PREGITZER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 18 | LAURA ROBERTSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 19 | DAWN RAYMOND |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 20 | TINA MIYATAKI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 21 | JERI YAMAGATA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 22 | JOHN KOMETANI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 23 | LARRY DENIS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 24 | ROMEO ELENO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 25 | ALAN ISBELL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 26 | SHANNON KEALOHA-KAIA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 27 | LOKENLANI HAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 28 | BEVERLY GOTELLI RETIREE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 29 | LIANN SANERIVI STUDENT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 30 | WILBERT HOLCK |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 31 | ANDREA ESHELMAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 32 | GORDON MURAKAMI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 33 | DAVID FOREST JR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 34 | ERIC NAGAMINE |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 149932 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 3800 |
| 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 | 23640 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 8280 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 18 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 19 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 20 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 21 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 22 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 23 | 600 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 24 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 25 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 26 | 1250 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 27 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 28 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 29 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 30 | 147620 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 31 | 132012 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 32 | 115199 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 33 | 106864 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 34 | 105075 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 18 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 19 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 20 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 21 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 22 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 23 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 24 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 25 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 26 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 27 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 28 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 29 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 30 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 31 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 32 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 33 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 34 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | PRESIDENT (EFFECTIVE 07/2015 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | VICE PRES EFF: 7/2018 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | SEC-TREA EFF: 7/2018 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | NEA DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 18 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 19 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 20 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 21 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 22 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 23 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 24 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 25 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 26 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 27 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 28 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 29 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 30 | EXECUTIVE DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 31 | DEPUTY EXECUTIVE DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 32 | DIRECTOR OF FINANCE & ACCO |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 33 | UNIVSERV DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 34 | UNIVSERV DIRECTOR |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 0 |
| IRS990/Form990TFiledInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1970 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | -10515 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 30 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 9328826 |
| IRS990/GrossRentsGrp/RealAmt | 0 | 44435 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 28 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 6 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIIInd | 0 | X |
| IRS990/InsuranceGrp/TotalAmt | 0 | 111475 |
| IRS990/InterestGrp/TotalAmt | 0 | 41753 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 183310 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 183310 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 5959998 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 6088756 |
| IRS990/IRPDocumentCnt | 0 | 115 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 2596351 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 3821082 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 3769866 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 6366217 |
| IRS990/LegalDomicileStateCd | 0 | HI |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 10515 |
| IRS990/LessRentalExpensesGrp/RealAmt | 0 | 2000 |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 1 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 1 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | SERVED HSTA MEMBERS AS THEIR EXCLUSIVE COLLECTIVE BARAINING AGENT, ADMINISTERED MEMBERS' CONTRACT NEGOTIATIONS WITH THE STATE OF HAWAAII CONCERNING GRIEVANCES, LABOR DISPUTES, WAGES, FRINGE BENEFITS, HOURS AND OTHER EMPLOYMENT CONDITIONS. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/BOYAmt | 0 | 973329 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/EOYAmt | 0 | 736316 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 9564141 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 11052775 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | -10515 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | -10515 |
| IRS990/NetRentalIncomeOrLossGrp/ExclusionAmt | 0 | 42435 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 42435 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 5902 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 15340 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 111525 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 276375 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |