| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 796771 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 840233 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 246647 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 22000 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | THE FRANK LLOYD WRIGHT FOUNDATION INSPIRES PEOPLE TO DISCOVER AND EMBRACE AN ARCHITECTURE FOR BETTER LIVING THROUGH MEANINGFUL CONNECTIONS TO NATURE, THE ARTS, AND EACH OTHER. |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 78226 |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 7634 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 315004 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 400864 |
| IRS990/AllOtherContributionsAmt | 0 | 1711143 |
| IRS990/AllOtherExpensesGrp/FundraisingAmt | 0 | 85 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 97 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 129023 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 129205 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | SCOTT MCDANIEL |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 6028005412 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 12621 N FRANK LLOYD WRIGHT BLVD |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | SCOTTSDALE |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | AZ |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 85259 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 59961 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 152971 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 1 |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 77126 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 12892 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 428483 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 518501 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 1 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 1 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/ContriRptFundraisingEventAmt | 0 | 10000 |
| IRS990/CostOfGoodsSoldAmt | 0 | 1202766 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 2045764 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 322368 |
| IRS990/CYOtherExpensesAmt | 0 | 4378313 |
| IRS990/CYOtherRevenueAmt | 0 | 1428665 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 5636519 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | -1361738 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 6314191 |
| IRS990/CYTotalExpensesAmt | 0 | 10795054 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 1521659 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 102550 |
| IRS990/CYTotalRevenueAmt | 0 | 9433316 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 262211 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 202592 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 17245 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 31289 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 541919 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 590453 |
| IRS990/Desc | 0 | BUILDING PRESERVATION - THE FRANK LLOYD WRIGHT FOUNDATION INVESTS CAPITAL AND CONSIDERABLE EFFORTS IN ORDER TO PROTECT, MAINTAIN, AND RESTORE THE ARCHITECTURALLY HISTORIC STRUCTURES AND SPACES THAT COMPRISE ITS CAMPUSES IN BOTH SCOTTSDALE, ARIZONA, AND SPRING GREEN, WISCONSIN. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 3912595 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 3685540 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 1 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 131 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 3748561 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 32438 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 32438 |
| IRS990/FeesForServicesLegalGrp/FundraisingAmt | 0 | 14170 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 1011 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 37096 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 52277 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 146581 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 20103 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 737273 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 903957 |
| IRS990/FeesForServicesProfFundraising/FundraisingAmt | 0 | 102550 |
| IRS990/FeesForServicesProfFundraising/TotalAmt | 0 | 102550 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 28926 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 28926 |
| IRS990/ForeignActivitiesInd | 0 | 1 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 0.00 |
| 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/AverageHoursPerWeekRt | 12 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 18 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 19 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 20 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 21 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 4 | X |
| 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/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/OfficerInd | 7 | 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 | 12304 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 17141 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 17 | 24435 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 18 | 21754 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 19 | 7629 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 20 | 23176 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 21 | 9878 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | MARK DREHER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | SEAN RUSH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | DIANA SMITH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | ROBERT SKERKER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | JOEL BENKIE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | TIMOTHY RADDEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | JOHN ANDERSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | MICHAEL DESMOND |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | BING HU |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | CHRISTINA LINDAL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | MICHAEL MILLER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | JASON MORRIS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | ANNE STUPP |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | ASHLEY WILSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | JULIE WESTRA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | STUART GRAFF |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | SUSAN WHITMER VP CHIEF |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | FREDERICK PROZZILLO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 18 | NICOLE STEWART |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 19 | KIMBERLEY VALENTINE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 20 | JENNIFER GRAY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 21 | LEWIS MILLS |
| 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 | 306413 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 16 | 168562 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 17 | 147663 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 18 | 166392 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 19 | 176697 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 20 | 118125 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 21 | 105169 |
| 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/TitleTxt | 0 | BOARD CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | BOARD CHAIR (THROUGH 8/15/23) |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | VICE CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | SECRETARY (THROUGH 8/15/23) |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | TREASURER (THROUGH 7/31/24) |
| 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 (THROUGH 12/15/23) |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | CEO & PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | FINANCE & ADMIN OFF. (THRU 7/31/24) |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | VP OF PRESERVATION |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 18 | VP OF PUBLIC ENGAGEMENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 19 | VP OF ADVANCEMENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 20 | VP OF TALIESIN INSTITUTE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 21 | DIR. OF ACCOUNTING (THRU 1/12/24) |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/Form990TFiledInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1965 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 1 |
| IRS990/FundraisingAmt | 0 | 10000 |
| IRS990/FundraisingDirectExpensesAmt | 0 | 69963 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 70500 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 71061 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 12 |
| IRS990/GovernmentGrantsAmt | 0 | 324621 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 2750674 |
| IRS990/GrossReceiptsAmt | 0 | 13385658 |
| IRS990/GrossRentsGrp/RealAmt | 0 | 38140 |
| IRS990/GrossSalesOfInventoryAmt | 0 | 2592754 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 12 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 8 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/FundraisingAmt | 0 | 79424 |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 16084 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 273675 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 369183 |
| IRS990/InsuranceGrp/FundraisingAmt | 0 | 28007 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 27024 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 196295 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 251326 |
| IRS990/IntangibleAssetsGrp/BOYAmt | 0 | 38335 |
| IRS990/IntangibleAssetsGrp/EOYAmt | 0 | 38457 |
| IRS990/InterestGrp/FundraisingAmt | 0 | 85 |
| IRS990/InterestGrp/ManagementAndGeneralAmt | 0 | 7 |
| IRS990/InterestGrp/ProgramServicesAmt | 0 | 1495 |
| IRS990/InterestGrp/TotalAmt | 0 | 1587 |
| IRS990/InventoriesForSaleOrUseGrp/BOYAmt | 0 | 296381 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 247509 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 251307 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 251307 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 8014995 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 5659742 |
| IRS990/IRPDocumentCnt | 0 | 63 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 11964690 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 10517838 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 12190405 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 24155095 |
| IRS990/LegalDomicileStateCd | 0 | AZ |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 2679613 |
| IRS990/LessRentalExpensesGrp/RealAmt | 0 | 0 |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 0 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | THE FRANK LLOYD WRIGHT FOUNDATION INSPIRES PEOPLE TO DISCOVER AND EMBRACE AN ARCHITECTURE FOR BETTER LIVING THROUGH MEANINGFUL CONNECTIONS TO NATURE, THE ARTS, AND EACH OTHER. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/BOYAmt | 0 | 52980 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/EOYAmt | 0 | 37235 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 22125799 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 21149579 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | 71061 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 71061 |
| IRS990/NetIncmFromFundraisingEvtGrp/ExclusionAmt | 0 | 537 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | 537 |
| IRS990/NetIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 741284 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 1389988 |
| IRS990/NetIncomeOrLossGrp/UnrelatedBusinessRevenueAmt | 0 | 648704 |
| IRS990/NetRentalIncomeOrLossGrp/ExclusionAmt | 0 | 38140 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 38140 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 385518 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 18213204 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 17464039 |
| IRS990/NoncashContributionsAmt | 0 | 3943 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 5755 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 3312 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 186062 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 195129 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 107331 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 3706 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 510518 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 621555 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 2959379 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 2959379 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 51843 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 14072 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 486916 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 552831 |
| IRS990/OtherExpensesGrp/Desc | 0 | REPAIRS AND MAINTENANCE |
| IRS990/OtherExpensesGrp/Desc | 1 | PROGRAM EXPENSES |
| IRS990/OtherExpensesGrp/Desc | 2 | DUES AND SUBSCRIPTIONS |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 455 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 1 | 19179 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 2 | 5507 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 439 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 267 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 2 | 1485 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 643088 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 33484 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 25577 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 643982 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 52930 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 32569 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 716232 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 119719 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 3979124 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 4815075 |
| IRS990/OwnWebsiteInd | 0 | X |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 55785 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 9324 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 309918 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 375027 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 4285 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 1350 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 47122 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 52757 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 95915 |