| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 487798 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 796771 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 266854 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 246647 |
| 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 | 37240 |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 2837 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 367911 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 407988 |
| IRS990/AllOtherContributionsAmt | 0 | 2529069 |
| IRS990/AllOtherExpensesGrp/FundraisingAmt | 0 | 22874 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 4593 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 124791 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 152258 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | SUSAN WHITMER |
| 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 | 90134 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 59961 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 1 |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 77359 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 9670 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 396463 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 483492 |
| 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 | 15750 |
| IRS990/CostOfGoodsSoldAmt | 0 | 1253384 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 2750054 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 188901 |
| IRS990/CYOtherExpensesAmt | 0 | 3849243 |
| IRS990/CYOtherRevenueAmt | 0 | 1419349 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 5610565 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 42409 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 5887754 |
| IRS990/CYTotalExpensesAmt | 0 | 9926460 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 1409475 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 189463 |
| IRS990/CYTotalRevenueAmt | 0 | 9968869 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 1 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 375698 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 262211 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 16315 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 29601 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 512682 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 558598 |
| 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 | 3280123 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 3912595 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 1 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 138 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 3266782 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 29600 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 29600 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 22351 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 24017 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 745296 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 791664 |
| IRS990/FeesForServicesProfFundraising/FundraisingAmt | 0 | 189463 |
| IRS990/FeesForServicesProfFundraising/TotalAmt | 0 | 189463 |
| 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 | 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/AverageHoursPerWeekRt | 12 | 5.00 |
| 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 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 3 | 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 | 10104 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 13755 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 17 | 19019 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 18 | 20402 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 19 | 6154 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 20 | 6557 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | SEAN RUSH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | MARK DREHER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | DIANA SMITH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | JOEL BENKIE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | TIMOTHY RADDEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | TK MCCLINTOCK |
| 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 | ROBERT SKERKER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | ANNE STUPP |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | ASHLEY WILSON |
| 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 | TERRY BARBER |
| 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 | 285402 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 16 | 144848 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 17 | 139897 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 18 | 155160 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 19 | 165230 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 20 | 104535 |
| 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/TitleTxt | 0 | BOARD CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | VICE CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | VICE CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | VICE CHAIR (THROUGH 08/26/22) |
| 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 | CEO & PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | FINANCE & ADMINISTRATION OFFICER |
| 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 | DIR. OF ACCOUNTING (THRU 10/25/22) |
| 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 | 15750 |
| IRS990/FundraisingDirectExpensesAmt | 0 | 42962 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 17501 |
| IRS990/GainOrLossGrp/OtherAmt | 0 | -2729 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | -14623 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 14 |
| IRS990/GovernmentGrantsAmt | 0 | 205235 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 1830823 |
| IRS990/GrossReceiptsAmt | 0 | 13113390 |
| IRS990/GrossRentsGrp/RealAmt | 0 | 53500 |
| IRS990/GrossSalesOfInventoryAmt | 0 | 2644694 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 14 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 6 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIInd | 0 | X |
| IRS990/InformationTechnologyGrp/FundraisingAmt | 0 | 47222 |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 12481 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 196976 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 256679 |
| IRS990/InsuranceGrp/FundraisingAmt | 0 | 27807 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 29514 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 194893 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 252214 |
| IRS990/IntangibleAssetsGrp/BOYAmt | 0 | 38335 |
| IRS990/IntangibleAssetsGrp/EOYAmt | 0 | 38335 |
| IRS990/InterestGrp/FundraisingAmt | 0 | 139 |
| IRS990/InterestGrp/ManagementAndGeneralAmt | 0 | 12 |
| IRS990/InterestGrp/ProgramServicesAmt | 0 | 2399 |
| IRS990/InterestGrp/TotalAmt | 0 | 2550 |
| IRS990/InventoriesForSaleOrUseGrp/BOYAmt | 0 | 275105 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 296381 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 206253 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 206253 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 5609364 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 8014995 |
| IRS990/IRPDocumentCnt | 0 | 59 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 11374240 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 9221925 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 10517838 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 21892078 |
| IRS990/LegalDomicileStateCd | 0 | AZ |
| IRS990/LessCostOthBasisSalesExpnssGrp/OtherAmt | 0 | 2729 |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 1845446 |
| 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 | 65974 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/EOYAmt | 0 | 52980 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 21498411 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 22125799 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | -17352 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | -17352 |
| IRS990/NetIncmFromFundraisingEvtGrp/ExclusionAmt | 0 | -25461 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | -25461 |
| IRS990/NetIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 789554 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 1391310 |
| IRS990/NetIncomeOrLossGrp/UnrelatedBusinessRevenueAmt | 0 | 601756 |
| IRS990/NetRentalIncomeOrLossGrp/ExclusionAmt | 0 | 53500 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 53500 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 5069 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 274820 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 18218288 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 18213204 |
| IRS990/NoncashContributionsAmt | 0 | 39440 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 6052 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 4318 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 487931 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 498301 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 105791 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 3872 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 562929 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 672592 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 2887067 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 2959379 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 76778 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 13017 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 495849 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 585644 |
| IRS990/OtherExpensesGrp/Desc | 0 | PROGRAM EXPENSES |
| IRS990/OtherExpensesGrp/Desc | 1 | UNRELATED BUSINESS INCO |
| IRS990/OtherExpensesGrp/Desc | 2 | DUES AND SUBSCRIPTIONS |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 1123 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 1 | 5289 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 674 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 1320 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 62308 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 32481 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 23591 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 64105 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 32481 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 30200 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 703887 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 112986 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 3630106 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 4446979 |
| IRS990/OwnWebsiteInd | 0 | X |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 56136 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 7924 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 295302 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 359362 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 780 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 645 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 10852 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 12277 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 178134 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 95915 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 135311 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 135796 |
| IRS990/PrincipalOfficerNm | 0 | STUART GRAFF |
| IRS990/PriorPeriodAdjustmentsAmt | 0 | 310159 |
| IRS990/ProfessionalFundraisingInd | 0 | 1 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 561520 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 900099 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 2 | 900099 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 3 | 900099 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | PUBLIC TOURS & ACCESS |