Liabilities / Assets
8th percentile
Higher debt load relative to assets than 8% of similar nonprofits.
EIN 39-1033301 • 501(c)3 • Oshkosh, WI
Profile
Eaa aviation foundation (eaa foundation) is organized and operated in order to support the experimental aircraft association, inc. (eaa), a separate 501(c)(3) organization. The organization, through the conduct of its activities, receives, holds, and (continued on schedule o) invests funds and uses the principal or earnings therefrom for the benefit of eaa and also holds title to certain assets including the organization's headquarters, other buildings, and the aviation museum collection. The organization is compensated under a lease contract with eaa for the use of these facilities and other assets.form 990, part v, line 2a:number of employees on form w-3the number of employees on form w-3 is the total employee count for the filing organization. While eaa is the common paymaster for some eaa foundation employees, the number of employees only includes the employee count for eaa foundation.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
8th percentile
Higher debt load relative to assets than 8% of similar nonprofits.
Liabilities / Revenue
9th percentile
Higher debt load relative to revenue than 9% of similar nonprofits.
Net Margin
83rd percentile
Higher net margin than 83% of similar nonprofits.
Top Officer Pay
Score unavailable
No filing with officer rows is available for this organization yet.
Asset Growth
60th percentile
Faster asset growth than 60% of similar nonprofits.
Revenue Growth
71st percentile
Faster revenue growth than 71% of similar nonprofits.
Assets
$76,672,861
No earlier filing loaded for comparison.
Liabilities
$360,623
No earlier filing loaded for comparison.
Net Assets
$76,312,238
No earlier filing loaded for comparison.
Revenue
$13,503,529
No earlier filing loaded for comparison.
Expenses
$9,224,861
No earlier filing loaded for comparison.
Net Income
$4,278,668
No earlier filing loaded for comparison.
Most recent year
2025 • Form 990Facts available. Structured filing facts are available, but richer extracted sections are limited.
Eaa aviation foundation is organized and operated in order to support the experimental aircraft association, inc. (eaa), a separate 501(c)(3) organization. The organization, through the conduct of its activities, receives, holds, and invests funds and uses the earnings therefrom for the benefit of eaa and also holds title to certain assets including the organization's headquarters, other buildings, and the aviation museum collection. The organization is compensated under a lease contract with eaa for the use of these facilities and other assets.
To support and advance the educational mission of eaa, inc. Through (continued on schedule o) the solicitation of contributions to invest funds and use the earnings to support the mission of eaa, inc.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Investments in Publicly Traded Securities | $28,221,813 | $35,874,166 | ▲ $7,652,353 |
| Investments Other Securities | $15,919,963 | $15,122,954 | ▼ $797,009 |
| Land, Buildings, and Equipment, Net | $10,801,057 | $10,592,980 | ▼ $208,077 |
| Cash and Non-Interest-Bearing Accounts | $567,162 | $1,296,406 | ▲ $729,244 |
| Pledges and Grants Receivable | $1,218,800 | $522,686 | ▼ $696,114 |
| Accounts Receivable | $2,608,007 | $368,461 | ▼ $2,239,546 |
| Prepaid Expenses and Deferred Charges | $123,076 | $74,564 | ▼ $48,512 |
| Total Assets | $71,335,501 | $76,672,861 | ▲ $5,337,360 |
| Other Assets Total | $11,875,623 | $12,820,644 | ▲ $945,021 |
| Liabilities | |||
| Accounts Payable and Accrued Expenses | $216,943 | $222,712 | ▲ $5,769 |
| Other Liabilities | $139,266 | $137,911 | ▼ $1,355 |
| Total Liabilities | $356,209 | $360,623 | ▲ $4,414 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $37,104,882 | $39,052,508 | ▲ $1,947,626 |
| Net Assets With Donor Restrictions | $33,874,410 | $37,259,730 | ▲ $3,385,320 |
| Total Net Assets Fund Balance | $70,979,292 | $76,312,238 | ▲ $5,332,946 |
| Total Liabilities and Net Assets / Fund Balance | $71,335,501 | $76,672,861 | ▲ $5,337,360 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Buildings | $9,858,258 | $11,263,354 | $21,121,612 |
| Leasehold Improvements | $383,266 | $379,589 | $762,855 |
| Land | $351,456 | - | $351,456 |
| Other Assets Org | $70,741 | - | - |
| Other Securities | $213,467 | - | - |
| Period | Beginning | Contrib. | Gain/Loss | Other Uses | End |
|---|---|---|---|---|---|
| 2025 | $42,721,717 | $2,056,781 | ▲ $3,961,884 | - | $47,360,459 |
| 2024 | $38,092,721 | $809,220 | ▲ $5,013,148 | - | $42,721,717 |
| 2023 | $39,991,860 | $1,256,593 | ▼ $1,623,445 | - | $38,092,721 |
| 2022 | $38,264,834 | $765,061 | ▲ $2,285,386 | - | $39,991,860 |
| 2021 | $31,088,638 | $1,754,205 | ▲ $6,615,231 | - | $38,264,834 |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Jack Pelton | President | PT | $196,985 | $100,897 | $297,882 |
| Margaret Brill | Vice President | FT | $178,624 | $49,491 | $228,115 |
| Kelly Ruh | CFO/VP of Finance & Hr | PT | $62,201 | $11,903 | $74,104 |
| Rick Larsen | Secretary/treasurer | - | $4,810 | $1,570 | $6,380 |
| Name | Title |
|---|---|
| James Johnson | Trustee |
| Norm Dewitt | Trustee |
| Tom Frasca | Trustee |
| Patti Arthur | Trustee - as of 02/25 |
| Eric Gurley | VP - THRU 10/24: TRUSTEE |
| Lou Seno | Secretary/treasurer |
| Contribution Type | Contribution Count | Reported Amount | Valuation Method |
|---|---|---|---|
| Boats and Planes | 5 | $1,140,000 | Fair Market Value (FMV) |
| Other Non Cash Contri Table | 56 | $394,576 | Fair Market Value (FMV) |
| Securities Publicly Traded | 14 | $58,683 | Fair Market Value (FMV) |
| Total Noncash Contributions | 75 | $1,593,259 | - |
| Line Item | Amount |
|---|---|
| Grants and Similar Amounts Paid | $6,928,078 |
| Total Fundraising Expense | $1,331,277 |
| Salaries, Compensation, and Employee Benefits | $1,155,325 |
| Other Expenses | $1,093,458 |
| Professional Fundraising Fees | $48,000 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Grants to Domestic Orgs | $6,928,078 | - | - | $6,928,078 |
| Other Salaries and Wages | - | $120,153 | $486,603 | $606,756 |
| Current Officers, Directors, Trustees, and Key Employees | - | $96,830 | $231,210 | $328,040 |
| Depreciation Depletion | - | $169,562 | - | $169,562 |
| Other Employee Benefits | - | $11,753 | $127,622 | $139,375 |
| Fees for Services Other | - | - | $110,299 | $110,299 |
| Fees for Service Investment Mgmnt Fees | - | $98,940 | - | $98,940 |
| Advertising | - | - | $87,711 | $87,711 |
| Fees for Services Accounting | - | $56,657 | - | $56,657 |
| Office Expenses | - | - | $52,472 | $52,472 |
| Fees for Services Professional Fundraising | - | - | $48,000 | $48,000 |
| Payroll Taxes | - | $9,199 | $37,295 | $46,494 |
| Pension Plan Contributions | - | $3,466 | $31,194 | $34,660 |
| Travel | - | - | $26,156 | $26,156 |
| Occupancy | - | $22,893 | $672 | $23,565 |
| Insurance | - | $22,160 | - | $22,160 |
| Other Expenses | - | $341,959 | $21,934 | $21,934 |
| Fees for Services Legal | - | $1,434 | - | $1,434 |
| Conferences and Meetings | - | - | $1,350 | $1,350 |
| All Other Expenses | - | $10,500 | $-21,982 | $-11,482 |
| Total Functional Expenses | $6,928,078 | $965,506 | $1,331,277 | $9,224,861 |
| Line Item | Amount |
|---|---|
| Total Expenses per Audited Statements | $11,015,296 |
| Total Expenses per Form 990 | $9,224,861 |
| Expenses per Audited Statements | $9,125,921 |
| Expenses Not Reported on Form 990 | $1,889,375 |
| Expenses Not Reported on Financial Statements | $98,940 |
| Recipient | Location | Category | Purpose | Amount |
|---|---|---|---|---|
| Experimental Aircraft Association Inc | Oshkosh, WI | 501(c)(3) | Grant - See Form 990 Part Iii, Line 4a | $6,928,078 |
| Line Item | Amount |
|---|---|
| Fundraising Direct Expenses | $1,279,598 |
| Fundraising Gross Income | $925,899 |
| Gaming Gross Income | $384,330 |
| Gaming Direct Expenses | $152,956 |
| Professional Fundraising Fees | $48,000 |
| Event | Gross Receipts | Gross Revenue | Direct Expenses | Net Income |
|---|---|---|---|---|
| The Gathering | $3,144,241 | $925,899 | $533,825 | $392,074 |
| Online Auctions | $25,303 | - | $2,609 | - |
| Total Events | $3,169,544 | $925,899 | $1,279,598 | $-353,699 |
| Liability | Amount |
|---|---|
| Gift/annuity Program Reserve | $137,911 |
“Class or classes of persons with certain approval rights eaa foundation's board member nominees are approved by the eaa board. Eaa is a related tax-exempt organization.”
“Process the organization uses to review form 990 the form 990 was prepared by a national accounting firm and reviewed by organization management. A draft copy of the return was sent electronically to the eaa foundation board of trustees for review and approval. A final copy was sent to the board of trustees before the filing of the return.”
“Organization's practices for monitoring conflicts of interest all officers, directors, and key employees are required to sign the organization's conflict of interest policy. In-house legal counsel reviews all forms. Any disclosures noted are brought to the attention of the board of trustees to review.”
“Process for determining compensation of top management eaa foundation relies on eaa to facilitate compensation of shared employees and officers. Eaa is reimbursed for the foundation's proportionate share of expenses based on time spent and is included in eaa foundation's administrative fee expense.”
“Organization's policy regarding making certain documents public the 2024 fiscal year form 990 will be posted to the organization's website, www.eaa.org, upon the filing of the return with the irs.”
“Organization's policy regarding making certain documents public the annual audited financial statement is available on eaa's website www.eaa.org. The organization's governing documents and conflict of interest policy are also available upon request, either in hard copy or electronic form, whichever is requested.”
“Number of employees on form w-3 the number of employees on form w-3 is the total employee count for the filing organization. While eaa is the common paymaster for some eaa foundation employees, the number of employees only includes the employee count for eaa foundation.”
“Change in beneficial int: split int agreement 368,908. Adjustment to bad debt allowance -8,851. Change in cash surrender value: life insurance -58,009. Book to tax adjustment for realized losses -125,120.”
“Collections of arts and historical treasures exempt purpose the eaa aviation foundation, inc. Along with the eaa aviation museum, maintains a collection of historic aircraft, artifacts, and archival materials related to the history of aviation with an emphasis on recreational aviation. The collection includes approximately 240 aircraft, approximately 22,400 artifacts, 20,750 books and periodicals, 1,069,000 photographs and 9,100 hours of film and video. The foundation loans the collection to eaa and eaa makes these collections available to the general public through on-site exhibits in the public museum, educational programming, a research library, and web-based content that attracts millions of visits each year. Through its collections, eaa explores and celebrates aviation's past and the spirit of aviation to encourage learning, discovery, and engagement with aviation.”
“Intended uses of organization's endowment funds the intended uses of eaa foundation's endowment funds are to provide support to eaa for general operations, scholarships, internships, young eagles program, other youth education programs, flight safety programs, support of women in aviation, and aviation museum collections.”
“Organization's liability for uncertain tax positions under fin 48 the association has received a determination letter from the internal revenue service ("irs"), dated november 3, 1993, stating that it is exempt from federal income tax under section 501(c)(3) of the internal revenue code ("irc"). The foundation has received a determination letter from the irs, dated october 30, 1964, stating that it is exempt from federal income tax under section 501(c)(3) of the irc. The association and foundation pay unrelated business income tax on certain of its activities, which are deemed to be unrelated to its exempt purpose. As required by the uncertain tax position guidance, the association and the foundation recognize the financial statement benefit of a tax position only after determining that the relevant tax authority would more likely than not sustain the position following an audit. For tax positions meeting the more-likely-than-not threshold, the amount recognized in the financial statements is the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement with the relevant tax authority. The association and the foundation applied the uncertain tax position guidance to all tax positions for which the statute of limitations remained open and determined there were no material unrecognized tax benefits as of february 28, 2025 and february 28, 2024. There were no material interest or penalties related to income tax that have been accrued or recognized as of and for the years ended february 29, 2025 and february 28, 2024.”
“Change in beneficial interest: split interest agmt 368,908. Book to tax adjustment for realized losses -125,120.”
“Gaming revenue 384,330. Gaming expenses -152,956. Fundraising expenses reported with revenue -1,279,598. Rental property expenses -1,168,867. Donated auction items 394,576.”
“Fundraising expenses reported with revenue 1,279,598. Gaming expenses 152,956. Change in cash surrender value: life insurance 58,009. Adjustment to bad debt allowance 8,851. Gaming revenue -384,330. Donated auction items -394,576. Rental property expenses 1,168,867.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 216943 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 222712 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 2608007 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 368461 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | TO SUPPORT AND ADVANCE THE EDUCATIONAL MISSION OF EAA, INC. THROUGH (CONTINUED ON SCHEDULE O) THE SOLICITATION OF CONTRIBUTIONS TO INVEST FUNDS AND USE THE EARNINGS TO SUPPORT THE MISSION OF EAA, INC. |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 87711 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 87711 |
| IRS990/AllOtherContributionsAmt | 0 | 8009737 |
| IRS990/AllOtherExpensesGrp/FundraisingAmt | 0 | -21982 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 10500 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | -11482 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | KELLY RUH |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 9204264800 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 3000 POBEREZNY ROAD |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | OSHKOSH |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | WI |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 54902 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 567162 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 1296406 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 1 |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 231210 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 96830 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 328040 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 0 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConferencesMeetingsGrp/FundraisingAmt | 0 | 1350 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 1350 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 1 |
| IRS990/ContriRptFundraisingEventAmt | 0 | 2243645 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 10253382 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 6928078 |
| IRS990/CYInvestmentIncomeAmt | 0 | 2983855 |
| IRS990/CYOtherExpensesAmt | 0 | 1093458 |
| IRS990/CYOtherRevenueAmt | 0 | 266292 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 4278668 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 1155325 |
| IRS990/CYTotalExpensesAmt | 0 | 9224861 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 1331277 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 48000 |
| IRS990/CYTotalRevenueAmt | 0 | 13503529 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 1 |
| IRS990/DeductibleArtContributionInd | 0 | 1 |
| IRS990/DeductibleNonCashContriInd | 0 | 1 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 169562 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 169562 |
| IRS990/Desc | 0 | GRANT CONSISTENT WITH EAA FOUNDATION'S PRIMARY EXEMPT PURPOSE TO EXPERIMENTAL AIRCRAFT ASSOCIATION, INC. IN SUPPORT OF THE AFFILIATED ORGANIZATION'S GENERAL OPERATIONS, SCHOLARSHIPS, INTERNSHIPS, YOUNG EAGLES PROGRAM, OTHER YOUTH EDUCATION PROGRAMS, FLIGHT SAFETY PROGRAMS, SUPPORT OF WOMEN IN AVIATION, AND AVIATION MUSEUM COLLECTIONS. SMALL DONATIONS WERE ALSO MADE TO AVIATION ENTITIES WITH MISSIONS AND PURPOSES CONSISTENT WITH THOSE OF EAA. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 33874410 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 37259730 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 1 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 9 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 6928078 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 56657 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 56657 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 1434 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 1434 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 110299 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 110299 |
| IRS990/FeesForServicesProfFundraising/FundraisingAmt | 0 | 48000 |
| IRS990/FeesForServicesProfFundraising/TotalAmt | 0 | 48000 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 98940 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 98940 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form1098CFiledInd | 0 | 1 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 32.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 1 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 2 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 3 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 4 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 5 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 6 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 7 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 8 | 49.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 9 | 37.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 17.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 12.50 |
| 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/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/OtherCompensationAmt | 0 | 63804 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 46507 |
| 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 | 31691 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 27007 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | JACK PELTON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | MARGARET BRILL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | LOU SENO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | PATTI ARTHUR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | NORM DEWITT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | TOM FRASCA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | ERIC GURLEY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | JAMES JOHNSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | RICK LARSEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | KELLY RUH |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 275551 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 181608 |
| 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 | 5746 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 67352 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 511737 |
| 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 | 281530 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 9 | 202057 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | VICE PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | SECRETARY/TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | TRUSTEE - AS OF 02/25 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | VP - THRU 10/24: TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | SECRETARY/TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | CFO/VP OF FINANCE & HR |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/Form990TFiledInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1962 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/ConsolidatedBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 1 |
| IRS990/FundraisingAmt | 0 | 2243645 |
| IRS990/FundraisingDirectExpensesAmt | 0 | 1279598 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 925899 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 1965506 |
| IRS990/GamingActivitiesInd | 0 | 1 |
| IRS990/GamingDirectExpensesAmt | 0 | 152956 |
| IRS990/GamingGrossIncomeAmt | 0 | 384330 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 8 |
| IRS990/GrantAmt | 0 | 6928078 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 6928078 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 6928078 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 1 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 11860986 |
| IRS990/GrossReceiptsAmt | 0 | 26000430 |
| IRS990/GrossRentsGrp/RealAmt | 0 | 1553000 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 0 |
| IRS990/IndependentVotingMemberCnt | 0 | 6 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 4 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartVInd | 0 | X |
| IRS990/InfoInScheduleOPartXIInd | 0 | X |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 22160 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 22160 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 1062598 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 1018349 |
| IRS990/InvestmentIncomeGrp/UnrelatedBusinessRevenueAmt | 0 | -44249 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsOtherSecuritiesGrp/BOYAmt | 0 | 15919963 |
| IRS990/InvestmentsOtherSecuritiesGrp/EOYAmt | 0 | 15122954 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 28221813 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 35874166 |
| IRS990/IRPDocumentCnt | 0 | 1 |
| IRS990/IRPDocumentW2GCnt | 0 | 1 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 11642943 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 10801057 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 10592980 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 22235923 |
| IRS990/LegalDomicileStateCd | 0 | WI |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 9895480 |
| IRS990/LessRentalExpensesGrp/RealAmt | 0 | 1168867 |
| 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 | EAA AVIATION FOUNDATION (EAA FOUNDATION) IS ORGANIZED AND OPERATED IN ORDER TO SUPPORT THE EXPERIMENTAL AIRCRAFT ASSOCIATION, INC. (EAA), A SEPARATE 501(C)(3) ORGANIZATION. THE ORGANIZATION, THROUGH THE CONDUCT OF ITS ACTIVITIES, RECEIVES, HOLDS, AND (CONTINUED ON SCHEDULE O)INVESTS FUNDS AND USES THE PRINCIPAL OR EARNINGS THEREFROM FOR THE BENEFIT OF EAA AND ALSO HOLDS TITLE TO CERTAIN ASSETS INCLUDING THE ORGANIZATION'S HEADQUARTERS, OTHER BUILDINGS, AND THE AVIATION MUSEUM COLLECTION. THE ORGANIZATION IS COMPENSATED UNDER A LEASE CONTRACT WITH EAA FOR THE USE OF THESE FACILITIES AND OTHER ASSETS. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 70979292 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 76312238 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | 1948902 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 1965506 |
| IRS990/NetGainOrLossInvestmentsGrp/UnrelatedBusinessRevenueAmt | 0 | 16604 |
| IRS990/NetIncmFromFundraisingEvtGrp/ExclusionAmt | 0 | -353699 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | -353699 |
| IRS990/NetIncomeFromGamingGrp/ExclusionAmt | 0 | 231374 |
| IRS990/NetIncomeFromGamingGrp/TotalRevenueColumnAmt | 0 | 231374 |
| IRS990/NetRentalIncomeOrLossGrp/ExclusionAmt | 0 | 384133 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 384133 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 877350 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 37104882 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 39052508 |
| IRS990/NoncashContributionsAmt | 0 | 1593259 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 672 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 22893 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 23565 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 52472 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 52472 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 11875623 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 12820644 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 176928 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 127622 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 11753 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 139375 |
| IRS990/OtherExpensesGrp/Desc | 0 | ADMINISTRATIVE FEES |
| IRS990/OtherExpensesGrp/Desc | 1 | CREDIT CARD DISCOUNTS |
| IRS990/OtherExpensesGrp/Desc | 2 | PUBLIC RELATIONS |
| IRS990/OtherExpensesGrp/Desc | 3 | PROGRAM EXEC. SUPPLIES |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 65300 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 1 | 25441 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 2 | 21934 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 341959 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 341959 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 65300 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 25441 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 21934 |
| IRS990/OtherInd | 0 | X |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 139266 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 137911 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 486603 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 120153 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 606756 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 37295 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 9199 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 46494 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 31194 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 3466 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 34660 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 1218800 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 522686 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 123076 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 74564 |
| IRS990/PrincipalOfficerNm | 0 | JACK PELTON |
| IRS990/ProfessionalFundraisingInd | 0 | 1 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 9648216 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 5941311 |
| IRS990/PYInvestmentIncomeAmt | 0 | 1969589 |
| IRS990/PYOtherExpensesAmt | 0 | 1038170 |
| IRS990/PYOtherRevenueAmt | 0 | 133882 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 3901359 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 822847 |
| IRS990/PYTotalExpensesAmt | 0 | 7850328 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 48000 |
| IRS990/PYTotalRevenueAmt | 0 | 11751687 |
| IRS990/QuidProQuoContributionsInd | 0 | 1 |
| IRS990/QuidProQuoContriDisclInd | 0 | 1 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 4278668 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 1 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/RentalIncomeOrLossGrp/RealAmt | 0 | 384133 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 1 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |
| IRS990/ReportOtherAssetsInd | 0 | 1 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 1 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RoyaltiesRevenueGrp/ExclusionAmt | 0 | 4484 |
| IRS990/RoyaltiesRevenueGrp/TotalRevenueColumnAmt | 0 | 4484 |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/ExplanationTxt | 0 | MISCELLANEOUS - 2020 AMOUNT: $ 53. 2021 AMOUNT: $ 33. 2022 AMOUNT: $ 0. 2023 AMOUNT: $ 0. 2024 AMOUNT: $ 0. PURCHASE DISCOUNTS - 2020 AMOUNT: $ 10. 2021 AMOUNT: $ 0. 2022 AMOUNT: $ 0. 2023 AMOUNT: $ 0. 2024 AMOUNT: $ 0. |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/ExplanationTxt | 1 | 2020 $52,864 |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/FormAndLineReferenceDesc | 0 | SCHEDULE A, PART II, LINE 10, EXPLANATION OF OTHER INCOME: |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/FormAndLineReferenceDesc | 1 | SCHEDULE A, PART II - UNUSUAL GRANT |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 10253382 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 9648216 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 9522165 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 6656334 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 9118233 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 45198330 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt | 0 | 2575833 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus1YearAmt | 0 | 2318788 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 1749187 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 554285 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 716292 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt | 0 | 7914385 |
| IRS990ScheduleA/GrossReceiptsRltdActivitiesAmt | 0 | 3360082 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 33 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 63 |
| IRS990ScheduleA/OtherIncome170Grp/TotalAmt | 0 | 96 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0.64690 |
| IRS990ScheduleA/PublicSupportPY170Pct | 0 | 0.65620 |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 34357762 |
| IRS990ScheduleA/SubstantialContributorsTotAmt | 0 | 10840568 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY170Ind | 0 | X |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt | 0 | 10253382 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt | 0 | 9648216 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 9522165 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 6656334 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 9118233 |
| IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt | 0 | 45198330 |
| IRS990ScheduleA/TotalSupportAmt | 0 | 53112811 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine2 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/State | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 0 | RESTRICTED |
| IRS990/ScheduleBRequiredInd | 0 | 1 |
| IRS990ScheduleD/ArtPublicExhibitionAmountsGrp/AssetsIncludedAmt | 0 | 12749903 |
| IRS990ScheduleD/ArtPublicExhibitionAmountsGrp/RevenuesIncludedAmt | 0 | 1140000 |
| IRS990ScheduleD/BoardDesignatedBalanceEOYPct | 0 | 0.34080 |
| IRS990ScheduleD/BuildingsGrp/BookValueAmt | 0 | 9858258 |
| IRS990ScheduleD/BuildingsGrp/DepreciationAmt | 0 | 11263354 |
| IRS990ScheduleD/BuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 21121612 |
| IRS990ScheduleD/CollectionUsedPreservationInd | 0 | X |
| IRS990ScheduleD/CollectionUsedPubExhibitionInd | 0 | X |
| IRS990ScheduleD/CollUsedLoanOrExchProgInd | 0 | X |
| IRS990ScheduleD/CYEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 42721717 |
| IRS990ScheduleD/CYEndwmtFundGrp/ContributionsAmt | 0 | 2056781 |
| IRS990ScheduleD/CYEndwmtFundGrp/EndYearBalanceAmt | 0 | 47360459 |
| IRS990ScheduleD/CYEndwmtFundGrp/GrantsOrScholarshipsAmt | 0 | 1379923 |
| IRS990ScheduleD/CYEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | 3961884 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 38092721 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/ContributionsAmt | 0 | 809220 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 42721717 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/GrantsOrScholarshipsAmt | 0 | 1193372 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | 5013148 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 39991860 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/ContributionsAmt | 0 | 1256593 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 38092721 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/GrantsOrScholarshipsAmt | 0 | 1532287 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | -1623445 |
| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 38264834 |
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