| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 98043 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 82234 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | PROVIDE A VEHICLE THROUGH WHICH WORKERS' COMPENSATION BENEFITS ARE PROVIDED TO PLAN PARTICIPANTS. |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BenefitsToMembersGrp/TotalAmt | 0 | 1085056 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | CARPENTER FUNDS ADMINISTRATIVE OFFICE OF NORTHERN CALIFORNIA INC |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 5106330333 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 265 HEGENBERGER ROAD NO 100 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | OAKLAND |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 94621 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CapStkTrPrinCurrentFundsGrp/BOYAmt | 0 | 0 |
| IRS990/CapStkTrPrinCurrentFundsGrp/EOYAmt | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 106515 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 104798 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 0 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 1085056 |
| IRS990/CYContributionsGrantsAmt | 0 | 0 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 25980 |
| IRS990/CYOtherExpensesAmt | 0 | 63598 |
| IRS990/CYOtherRevenueAmt | 0 | 15309 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 1343426 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 236061 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/CYTotalExpensesAmt | 0 | 1148654 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 1384715 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 23436 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 14602 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 1 |
| IRS990/Desc | 0 | TO PROVIDE A VEHICLE THROUGH WHICH WORKERS' COMPENSATION BENEFITS ARE PROVIDED TO APPROXIMATELY 3,668 PLAN PARTICIPANTS. |
| IRS990/DescribedInSection501c3Ind | 0 | 0 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 9975 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 5930 |
| IRS990/FeesForServicesManagementGrp/TotalAmt | 0 | 21701 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 5.00 |
| 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 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 5.00 |
| 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/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 27723 |
| 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/PersonNm | 0 | GENE PRICE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | MARK BRESLIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | ROBERT ALVARADO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | BOB ERSKINE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | TREVOR NEWQUIST |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | VICTOR SELLA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | OSCAR DE LA TORRE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | CHRIS PARKER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | STEVE INGERSOLL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | DAN REDING |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | CURTIS KELLY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | DAVID THOMAS |
| 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/ReportableCompFromRltdOrgAmt | 0 | 309757 |
| 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/TitleTxt | 0 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | CO-CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | TRUSTEE |
| 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/Form990ProvidedToGvrnBodyInd | 0 | 0 |
| IRS990/FormationYr | 0 | 2004 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GainOrLossGrp/OtherAmt | 0 | 17758 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 12 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossAmountSalesAssetsGrp/OtherAmt | 0 | 17758 |
| IRS990/GrossReceiptsAmt | 0 | 1384715 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 12 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartVIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIIInd | 0 | X |
| IRS990/InsuranceGrp/TotalAmt | 0 | 20897 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 8222 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 8222 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 600175 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 103653 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 69115 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 669290 |
| IRS990/LegalDomicileStateCd | 0 | CA |
| IRS990/LessCostOthBasisSalesExpnssGrp/OtherAmt | 0 | 0 |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 0 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 0 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | NONE |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 1284588 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 1520649 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | 17758 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 17758 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501cInd | 0 | X |
| IRS990/OrgDoesNotFollowFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 477568 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 269845 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherExpensesGrp/Desc | 0 | MISCELLANEOUS |
| IRS990/OtherExpensesGrp/Desc | 1 | BANK CHARGES |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 2888 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 2207 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 1 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | TRANSFER IN FROM BASIC |
| IRS990/OtherRevenueMiscGrp/Desc | 1 | MISCELLANEOUS |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 8638 |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 1 | 6671 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 8638 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 1 | 6671 |
| IRS990/OtherRevenueTotalAmt | 0 | 15309 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PdInCapSrplsLandBldgEqpFundGrp/BOYAmt | 0 | 0 |
| IRS990/PdInCapSrplsLandBldgEqpFundGrp/EOYAmt | 0 | 0 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 3746 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 4066 |
| IRS990/PrincipalOfficerNm | 0 | GENE PRICE |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 900099 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 900099 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 2 | 900099 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 3 | 900099 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 4 | 900099 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | LABORERS HEALTH AND WE |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | UNION CONTRIBUTIONS |
| IRS990/ProgramServiceRevenueGrp/Desc | 2 | ZURICH INSURANCE COMPA |
| IRS990/ProgramServiceRevenueGrp/Desc | 3 | EMPLOYER CONTRIBUTIONS |
| IRS990/ProgramServiceRevenueGrp/Desc | 4 | OLD REPUBLIC INSURANCE |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 383956 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 379184 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 2 | 251918 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 3 | 90359 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 4 | 80965 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 383956 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 379184 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 2 | 251918 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 3 | 90359 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 4 | 80965 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 1039318 |
| IRS990/PYContributionsGrantsAmt | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/PYInvestmentIncomeAmt | 0 | 18005 |
| IRS990/PYOtherExpensesAmt | 0 | 67665 |
| IRS990/PYOtherRevenueAmt | 0 | 3583 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 1705190 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 619795 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/PYTotalExpensesAmt | 0 | 1106983 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 1726778 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 236061 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 1 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |
| IRS990/ReportOtherAssetsInd | 0 | 1 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 0 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RtnEarnEndowmentIncmOthFndsGrp/BOYAmt | 0 | 1284588 |
| IRS990/RtnEarnEndowmentIncmOthFndsGrp/EOYAmt | 0 | 1520649 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 714585 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 1169661 |
| IRS990/ScheduleBRequiredInd | 0 | 0 |
| IRS990ScheduleD/EquipmentGrp/BookValueAmt | 0 | 5360 |
| IRS990ScheduleD/EquipmentGrp/DepreciationAmt | 0 | 281452 |
| IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt | 0 | 286812 |
| IRS990ScheduleD/ExpensesNotReportedAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesNotRptFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesSubtotalAmt | 0 | 1148654 |
| IRS990ScheduleD/FootnoteTextInd | 0 | X |
| IRS990ScheduleD/LeaseholdImprovementsGrp/BookValueAmt | 0 | 5465 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/DepreciationAmt | 0 | 267553 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/OtherCostOrOtherBasisAmt | 0 | 273018 |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 0 | 25720 |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 1 | 71432 |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 2 | 65714 |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 3 | 72032 |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 4 | 34898 |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 5 | 49 |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 0 | DUE FROM EMPLOYERS |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 1 | DUE FROM INSURANCE COMPANIES |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 2 | DUE FROM CARPENTERS UNION CONTRIBUTIONS |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 3 | DUE FROM LABORERS HEALTH AND WELFARE |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 4 | DUE FROM STATE COMPENSATION INSURANCE FUND |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 5 | INTEREST RECEIVABLE |
| IRS990ScheduleD/OtherLandBuildingsGrp/BookValueAmt | 0 | 58290 |
| IRS990ScheduleD/OtherLandBuildingsGrp/DepreciationAmt | 0 | 51170 |
| IRS990ScheduleD/OtherLandBuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 109460 |
| IRS990ScheduleD/RevenueNotReportedAmt | 0 | 0 |
| IRS990ScheduleD/RevenueNotReportedFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/RevenueSubtotalAmt | 0 | 1384715 |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 0 | THE TRUST HAS ADOPTED GUIDANCE ON ACCOUNTING FOR UNCERTAINTY IN INCOME TAXES ISSUED BY THE FINANCIAL ACCOUNTING STANDARDS BOARD. THE TRUST ADMINISTRATOR BELIEVES THAT THE TRUST HAS NOT TAKEN UNCERTAIN TAX POSITIONS THAT REQUIRE ADJUSTMENT TO THE FINANCIAL STATEMENTS AS A TAX LIABILITY. INFORMATIONAL TAX RETURNS, FOR TAX YEARS FOR WHICH THE APPLICABLE STATUTES OF LIMITATIONS HAVE NOT EXPIRED, ARE SUBJECT TO EXAMINATION BY AUTHORITIES. |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART X, LINE 2: |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 69115 |
| IRS990ScheduleD/TotalBookValueOtherAssetsAmt | 0 | 269845 |
| IRS990ScheduleD/TotalExpensesPerForm990Amt | 0 | 1148654 |
| IRS990ScheduleD/TotalRevenuePerForm990Amt | 0 | 1384715 |
| IRS990ScheduleD/TotalRevEtcAuditedFinclStmtAmt | 0 | 1384715 |
| IRS990ScheduleD/TotExpnsEtcAuditedFinclStmtAmt | 0 | 1148654 |
| IRS990ScheduleJ/EquityBasedCompArrngmInd | 0 | 0 |
| IRS990/ScheduleJRequiredInd | 0 | 1 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BaseCompensationFilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusFilingOrganizationAmount | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusRelatedOrganizationsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompensationBasedOnRltdOrgsAmt | 0 | 303092 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990FilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990RltdOrgsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompensationFlngOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompRltdOrgsAmt | 0 | 7800 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsFilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsRltdOrgsAmt | 0 | 19923 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/OtherCompensationFilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/OtherCompensationRltdOrgsAmt | 0 | 6665 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/PersonNm | 0 | GENE PRICE |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TitleTxt | 0 | SECRETARY |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TotalCompensationFilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TotalCompensationRltdOrgsAmt | 0 | 337480 |
| IRS990ScheduleJ/SeverancePaymentInd | 0 | 0 |
| IRS990ScheduleJ/SupplementalNonqualRtrPlanInd | 0 | 0 |
| IRS990/ScheduleORequiredInd | 0 | 1 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | THE ORGANIZATION HAS DELEGATED CONTROL OF MANAGEMENT DUTIES CUSTOMARILY PERFORMED BY OR UNDER THE DIRECT SUPERVISION OF OFFICERS, DIRECTORS, TRUSTEES OR KEY EMPLOYEES TO A CONTRACT ADMINISTRATOR, THE CARPENTER FUNDS ADMINISTATIVE OFFICE. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | THE ORGANIZATION DOES NOT HAVE ANY COMMITTEES WITH THE AUTHORITY TO ACT ON BEHALF OF THE GOVERNING BODY. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | THR TRUSTEES DESIGNATE THE CONTRACT ADMINISTRATOR TO REVIEW THE FORM 990 PRIOR TO FILING. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | IN CONNECTION WITH ANY ACTUAL OR POTENTIAL CONFLICT OF INTEREST, A TRUSTEE SHOULD DISCLOSE TO ALL OTHER TRUSTEES AND FUND COUNSEL THE EXISTENCE AND NATURE OF THE FINANCIAL INTEREST OR BENEFIT INVOLVED INCLUDING DISCLOSURE OF ALL MATERIAL FACTS ATTENDANT TO THE TRANSACTION. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 4 | THE ORGANIZATION DOES NOT MAKE ITS GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, AND FINANCIAL STATEMENTS AVAILABLE TO THE PUBLIC. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 5 | EMPLOYER TRUSTEES OF THE TRUST ARE EMPLOYEES OF CONTRIBUTING EMPLOYERS THAT ARE CONSIDERED RELATED ORGANIZATIONS UNDER THE DEFINITIONS IN SCHEDULE R. THE RELATED ORGANIZATIONS ARE FOR-PROFIT ORGANIZATIONS, ARE NOT OWNED OR CONTROLLED, DIRECTLY OR INDIRECTLY, BY THE ORGANIZATION OR ONE OR MORE RELATED TAX-EXEMPT ORGANIZATIONS, AND DO NOT PROVIDE MANAGEMENT SERVICES FOR A FEE TO THE ORGANIZATION. AS SUCH COMPENSATION PAID BY RELATED ORGANIZATIONS IS NOT SHOWN UNDER THE VOLUNTEER EXCEPTION. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 6 | THE BOARD OF TRUSTEES ASSUMES RESPONSIBILITY FOR THE OVERSIGHT OF THE AUDIT OF THE ORGANIZATION'S FINANCIAL STATEMENTS AND SELECTION OF THE INDEPENDENT AUDITOR. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | FORM 990, PART VI, SECTION A, LINE 3 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | FORM 990, PART VI, SECTION A, LINE 8B |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | FORM 990, PART VI, SECTION B, LINE 11B |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | FORM 990, PART VI, SECTION B, LINE 12C |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 4 | FORM 990, PART VI, SECTION C, LINE 19 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 5 | FORM 990, PART VII: |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 6 | FORM 990, PART XII, LINE 2C |
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| IRS990ScheduleR/AssetPurchaseFromOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/AssetSaleToOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/DivRelatedOrganizationInd | 0 | 0 |
| IRS990ScheduleR/GiftGrntCapContriFromOthOrgInd | 0 | 0 |
| IRS990ScheduleR/GiftGrntOrCapContriToOthOrgInd | 0 | 0 |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/DirectControllingNACd | 0 | N/A |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/LegalDomicileStateCd | 0 | CA |
| IRS990ScheduleR/IdRelatedOrgTxblCorpTrGrp/RelatedOrganizationName/BusinessNameLine1Txt | 0 | AVAILABLE UPON REQUEST |
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| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/ControlledOrganizationInd | 1 | 0 |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/ControlledOrganizationInd | 2 | 0 |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/ControlledOrganizationInd | 3 | 0 |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/ControlledOrganizationInd | 4 | 0 |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/ControlledOrganizationInd | 5 | 0 |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/ControlledOrganizationInd | 6 | 0 |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 0 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 1 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 2 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 3 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 4 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 5 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 6 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 7 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 8 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 9 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 10 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 11 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 12 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 13 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 14 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 15 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 16 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 17 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 18 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 19 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 20 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 21 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 22 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 23 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 24 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 25 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 26 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 27 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 28 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 29 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DisregardedEntityName/BusinessNameLine1Txt | 0 | CARPENTER FUNDS ADMINISTRATIVE OFFICE OF NORTHERN CALIFORNIA INC |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DisregardedEntityName/BusinessNameLine1Txt | 1 | CARPENTERS HEALTH AND WELFARE TRUST FUND FOR NORTHERN CALIFORNIA |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DisregardedEntityName/BusinessNameLine1Txt | 2 | CARPENTERS PENSION TRUST FUND FOR NOTHERN CALFORNIA |