Liabilities / Assets
9th percentile
Higher debt load relative to assets than 9% of similar nonprofits.
990 • Fiscal year 2025 • EIN 95-3403273
Refreshing map…
Precomputed percentiles for this filing year versus similar nonprofits in the same peer cohort.
Liabilities / Assets
9th percentile
Higher debt load relative to assets than 9% of similar nonprofits.
Liabilities / Revenue
9th percentile
Higher debt load relative to revenue than 9% of similar nonprofits.
Net Margin
96th percentile
Higher net margin than 96% of similar nonprofits.
Top Officer Pay
19th percentile
Higher top officer pay than 19% of similar nonprofits.
Top officer pay equals 1.2% of source-year revenue.
Asset Growth
85th percentile
Faster asset growth than 85% of similar nonprofits.
Revenue Growth
98th percentile
Faster revenue growth than 98% of similar nonprofits.
Assets
Up$73,310,965
Up $13,328,417 (+22%) from 2023
Net Assets
Up$72,791,885
Up $13,817,825 (+23%) from 2023
Liabilities
Down$519,080
Down $489,408 (-49%) from 2023
Revenue
Up$15,487,164
Up $8,872,984 (+134%) from 2023
Expenses
Up$4,219,760
Up $783,651 (+23%) from 2023
Net Income
Up$11,267,404
Up $8,089,333 (+255%) from 2023
To acquire and preserve america's most important archaeological sites. The conservancy identifies important endangered sites, acquires the property by purchase, gift, or bargain sale from donors, secures the property, stabilizes the cultural resources at the site, manages the archaeological preserve as part of a long-term plan, and educates the general public and local officials about the destruction of our cultural heritage and how to preserve what remains.
To acquire and preserve america's most important archaeological sites.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Investments in Publicly Traded Securities | $9,895,666 | $10,837,301 | ▲ $941,635 |
| Accounts Receivable | - | $644,867 | - |
| Savings and Temporary Cash Investments | $1,538,856 | $497,550 | ▼ $1,041,306 |
| Land, Buildings, and Equipment, Net | $307,957 | $300,614 | ▼ $7,343 |
| Cash and Non-Interest-Bearing Accounts | $1,129,106 | $294,859 | ▼ $834,247 |
| Prepaid Expenses and Deferred Charges | $215,692 | $25,151 | ▼ $190,541 |
| Total Assets | $61,760,153 | $73,310,965 | ▲ $11,550,812 |
| Other Assets Total | $48,672,876 | $60,710,623 | ▲ $12,037,747 |
| Liabilities | |||
| Other Liabilities | $350,317 | $302,362 | ▼ $47,955 |
| Accounts Payable and Accrued Expenses | $191,231 | $110,464 | ▼ $80,767 |
| Mortgage Notes Payable Secured by Investment Property | $153,691 | $103,854 | ▼ $49,837 |
| Deferred Revenue | $232,730 | $2,400 | ▼ $230,330 |
| Total Liabilities | $927,969 | $519,080 | ▼ $408,889 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $58,116,292 | $69,366,979 | ▲ $11,250,687 |
| Net Assets With Donor Restrictions | $2,715,892 | $3,424,906 | ▲ $709,014 |
| Total Net Assets Fund Balance | $60,832,184 | $72,791,885 | ▲ $11,959,701 |
| Total Liabilities and Net Assets / Fund Balance | $61,760,153 | $73,310,965 | ▲ $11,550,812 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Buildings | $219,809 | $92,869 | $312,678 |
| Land | $60,000 | - | $60,000 |
| Equipment | $20,805 | $5,957 | $26,762 |
| Other Assets Org | $37,697 | - | - |
| Period | Beginning | Contrib. | Gain/Loss | Other Uses | End |
|---|---|---|---|---|---|
| 2024 | $5,266,132 | - | ▲ $951,893 | $-285,780 | $5,932,245 |
| 2023 | $4,432,354 | - | ▲ $1,053,552 | $-219,774 | $5,266,132 |
| 2022 | $1,357,677 | $3,000,000 | ▲ $214,978 | $-140,301 | $4,432,354 |
| 2021 | $1,750,216 | - | ▼ $307,927 | $-84,612 | $1,357,677 |
| 2020 | $1,425,276 | - | ▲ $389,518 | $-64,578 | $1,750,216 |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Mark P Michel | Pres/CEO--fo | FT | $164,653 | $17,236 | $181,889 |
| Mark P Michel | Pres/CEO--former | - | $164,653 | $17,236 | $181,889 |
| Tione Joseph | CFO | FT | $116,612 | $15,732 | $132,344 |
| Anne Lowe | Pres/CEO--fo | FT | $120,267 | $7,579 | $127,846 |
| Jessica Crawford | Regional Director | FT | $105,100 | $14,510 | $119,610 |
| Cory D Wilkins | President/ce | FT | $101,950 | $10,005 | $111,955 |
| Name | Title |
|---|---|
| Vin Steponaitis | Chair |
| Betsy Alexander | Director |
| Bill Thompson | Director |
| Jeffrey M Mitchem | Director |
| Jerry Golden | Director |
| Jim Galloway | Director |
| Leslie Masson | Director |
| Robert Gelb | Director |
| Shane Doyle | Director |
| Contribution Type | Contribution Count | Reported Amount | Valuation Method |
|---|---|---|---|
| Real Estate Other | 1 | $11,000,000 | Appraisal/comparable |
| Securities Publicly Traded | 2 | $20,013 | Fair Value |
| Total Noncash Contributions | 3 | $11,020,013 | - |
| Line Item | Amount |
|---|---|
| Other Expenses | $2,547,364 |
| Salaries, Compensation, and Employee Benefits | $1,672,396 |
| Total Fundraising Expense | $430,239 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $817,229 | $14,591 | $89,533 | $921,353 |
| Office Expenses | $520,893 | $11,014 | $168,280 | $700,187 |
| Current Officers, Directors, Trustees, and Key Employees | $207,881 | $183,298 | $88,069 | $479,248 |
| Payroll Taxes | $96,794 | $17,524 | $16,482 | $130,800 |
| Travel | $95,942 | $15,148 | $15,149 | $126,239 |
| Other Expenses | $118,567 | - | $15,027 | $118,567 |
| Fees for Services Accounting | - | $83,106 | - | $83,106 |
| Fees for Services Other | - | $81,028 | - | $81,028 |
| Other Employee Benefits | $60,116 | $2,184 | $8,555 | $70,855 |
| Pension Plan Contributions | $55,552 | $6,506 | $8,082 | $70,140 |
| Fees for Services Legal | - | $64,071 | - | $64,071 |
| Insurance | $30,162 | $21,937 | $2,742 | $54,841 |
| Occupancy | $44,869 | $1,402 | $467 | $46,738 |
| Fees for Service Investment Mgmnt Fees | - | $44,948 | - | $44,948 |
| Information Technology | $26,373 | $4,775 | $4,491 | $35,639 |
| Conferences and Meetings | - | $28,436 | - | $28,436 |
| Depreciation Depletion | $9,871 | $1,558 | $1,559 | $12,988 |
| All Other Expenses | - | - | $11,803 | $11,803 |
| Interest | $6,677 | - | - | $6,677 |
| Total Functional Expenses | $3,207,995 | $581,526 | $430,239 | $4,219,760 |
| Line Item | Amount |
|---|---|
| Total Expenses per Form 990 | $4,219,760 |
| Expenses per Audited Statements | $4,174,812 |
| Total Expenses per Audited Statements | $4,174,812 |
| Expenses Not Reported on Financial Statements | $44,948 |
| Region | Activity | Services | Offices | Employees | Spending |
|---|---|---|---|---|---|
| South America (peru) | Program Services | Educational Tour | - | - | $126,799 |
| North America (mexico) | Program Services | Educational Tour | - | - | $63,050 |
| Central America (guatemala) | Program Services | Educational Tour | - | - | $60,695 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
| Liability | Amount |
|---|---|
| Charitable Gift Annuity Obligations | $264,665 |
| Operating Lease Liability | $37,697 |
“The conservancys form 990 draft is reviewed by the president, cfo, treasurer, and finance committee of the board. The finance committee makes a recommendation to the executive committee, who votes to accept the 990 and related documents prior to filing. A copy of the final form 990 is distributed to the full board of directors.”
“Employees, officers, and directors are required to disclose any potential conflict of interest at the time it may occur to the president of the conservancy. All payments made during the course of each year are monitored by the president and cfo for potential conflicts of interest. There has never been an allegation of a conflict of interest situation in the history of the conservancy.”
“Compensation for the president is set each year by the full board of directors. A compensation committee first assembles a list of compensation data from 14 organizations that are felt to be closely similar to the conservancy. The compensation data is based on available irs form 990 reports and then adjusted for inflation and geographical region. The president's achievements are then evaluated by the committee and a recommendation is made for approval by the full board as part of the budget process. The considerations are documented in detail in the minutes from the session.”
“Compensation for officers or other key employees is recommended by the president to the board of directors based on individual job performance measures, employee experience, and prevailing wages in the area. The salaries are approved by the full board of directors as part of the annual budget process.”
“The conservancy's form 990, audit summary, and other organization information is available at its own website: www.thearchcons.org. The form 990 is also available at candid, charity navigator, the better business bureau, and other public websites. The governing documents, conflict of interest policy, and financial statements may also be obtained on request at the conservancy headquarters: 1717 girard blvd ne, albuquerque, nm 87106.”
“To acquire and preserve america's most important archaeological sites. The conservancy identifies important endangered sites, acquires the property by purchase, gift, or bargain sale from donors, secures the property, stabilizes the cultural resources at the site, manages the archaeological preserve as part of a long-term plan, and educates the general public and local officials about the destruction of our cultural heritage and how to preserve what remains.”
“The vast majority of conservancy volunteers serve as site stewards of protected properties. Volunteer site stewards serve as the eyes and ears for the conservancy in the field. They regulary visit and monitor properties, promote archeological resource protection through education, outreach, and public awareness, and also perform hands-on maintenance of these sites. Maintenance can include mowing, fencing, and sign repair.”
“Change in value of annuities -2,333”
“The conservancy records archaeological sites and easements at cost if purchased or at fair value at the date of acquisition if all or part of the site was received as a donation. Fair value is generally determined by appraisal at the time of acquisition and is not subsequently adjusted. Costs associated with site or easement purchases or donations, such as appraisals, surveys, and fees are capitalized as costs of the site or easement. Upon sale or gift, the book value of the land, land interest, or easement is reported as a program expense and the related proceeds, if any, are reported as revenue in the statement of activities. It is the conservancys intention to preserve sites and easements indefinitely, which is generally accomplished by retaining ownership of the sites and easements or by resale or transfer to various governmental agencies or public charities. Archaeological easements are comprised of listed rights and/or restrictions over properties that are conveyed by a property owner to the conservancy in order to protect the owned property as a significant archaeological site. Archaeological sites in process of acquisition include amounts paid for down payments, appraisals, surveys, and other pre-closing costs as well as non-cash donations accepted pending final escrow and transfer of title. The properties for which down payment deposits have been made do not represent purchase commitments as the conservancy can terminate all such contracts by merely forfeiting the deposit.”
“It is the conservancys intention to preserve sites and easements indefinitely, which is generally accomplished by retaining ownership of the sites and easements or by resale or transfer to various governmental agencies or public charities.”
“The endowment was created to provide support for the general operating needs of the conservancy.”
“The conservancy is exempt from federal and state income taxes under the provisions of internal revenue code section 501(c)(3). Accordingly, no provision or liability for income taxes has been provided in the accompanying financial statements.”
“Change in value of annuities -2,333”
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 | false |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 191231 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 110464 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 644867 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | TO ACQUIRE AND PRESERVE AMERICA'S MOST IMPORTANT ARCHAEOLOGICAL SITES. |
| IRS990/AllOtherContributionsAmt | 0 | 13053625 |
| IRS990/AllOtherExpensesGrp/FundraisingAmt | 0 | 11803 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 11803 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | true |
| IRS990/AuditCommitteeInd | 0 | true |
| IRS990/BackupWthldComplianceInd | 0 | true |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | CORY D WILKINS |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 5052661540 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 1717 GIRARD BLVD NE |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | ALBUQUERQUE |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | NM |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 87106 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 1129106 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 294859 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CollectionsOfArtInd | 0 | true |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 88069 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 183298 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 207881 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 479248 |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | true |
| IRS990/CompensationProcessOtherInd | 0 | true |
| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 28436 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 28436 |
| IRS990/ConflictOfInterestPolicyInd | 0 | true |
| IRS990/ConservationEasementsInd | 0 | true |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/CreditCounselingInd | 0 | true |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 14020983 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 707305 |
| IRS990/CYOtherExpensesAmt | 0 | 2547364 |
| IRS990/CYOtherRevenueAmt | 0 | 113358 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 645518 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 11267404 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 1672396 |
| IRS990/CYTotalExpensesAmt | 0 | 4219760 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 430239 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 15487164 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | true |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 232730 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 2400 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 1559 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 1558 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 9871 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 12988 |
| IRS990/Desc | 0 | ACQUISITION, CONSERVATION, AND MANAGEMENT: DURING THE YEAR ENDING JULY 31, 2025, THE CONSERVANCY COMPLETED THE ACQUISITION AND PROTECTION OF 11 ENDANGERED ARCHAEOLOGICAL SITES, WHICH ARE NOW MANAGED AS ARCHAEOLOGICAL PRESERVES. OVER 25 MORE SITES AND CONSERVATION EASEMENTS ARE IN VARIOUS STAGES OF ACQUISITION. IN TOTAL, THE CONSERVANCY HAS PROTECTED OVER 590 ARCHAEOLOGICAL SITES ACROSS THE COUNTRY. THE CONSERVANCY REGULARLY CONDUCTS STEWARDSHIP AND MAINTENANCE ACTIVITIES TO ENSURE THE CONTINUED PROTECTION AND MANAGEMENT OF EACH SITE. |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | true |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 2715892 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 3424906 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | true |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 22 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | true |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 1823492 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 83106 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 83106 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 64071 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 64071 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 81028 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 81028 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 44948 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 44948 |
| IRS990/ForeignActivitiesInd | 0 | true |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form8282PropertyDisposedOfInd | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 0 | 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/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 17236 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 15732 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 7579 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 14510 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 10005 |
| 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/PersonNm | 0 | MARK P MICHEL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | TIONE JOSEPH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | ANNE LOWE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | JESSICA CRAWFORD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | CORY D WILKINS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | BETSY ALEXANDER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | SHANE DOYLE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | JIM GALLOWAY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | ROBERT GELB |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | JERRY GOLDEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | LESLIE MASSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | JEFFREY M MITCHEM |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | BILL THOMPSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | VIN STEPONAITIS |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 164653 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 116612 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 120267 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 105100 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 101950 |
| 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/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/TitleTxt | 0 | PRES/CEO--FO |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | CFO |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | PRES/CEO--FO |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | REGIONAL DIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | PRESIDENT/CE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | CHAIR |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/FormationYr | 0 | 1979 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | true |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GainOrLossGrp/OtherAmt | 0 | 6608 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 398140 |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 10 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossAmountSalesAssetsGrp/OtherAmt | 0 | 80458 |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 1475015 |
| IRS990/GrossReceiptsAmt | 0 | 16637889 |
| IRS990/GrossRentsGrp/RealAmt | 0 | 40068 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | true |
| IRS990/IndependentAuditFinclStmtInd | 0 | true |
| IRS990/IndependentVotingMemberCnt | 0 | 9 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 5 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIInd | 0 | X |
| IRS990/InformationTechnologyGrp/FundraisingAmt | 0 | 4491 |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 4775 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 26373 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 35639 |
| IRS990/InsuranceGrp/FundraisingAmt | 0 | 2742 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 21937 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 30162 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 54841 |
| IRS990/InterestGrp/ProgramServicesAmt | 0 | 6677 |
| IRS990/InterestGrp/TotalAmt | 0 | 6677 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 302557 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 302557 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 9895666 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 10837301 |
| IRS990/IRPDocumentCnt | 0 | 57 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/JointCostsInd | 0 | X |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 98826 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 307957 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 300614 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 399440 |
| IRS990/LegalDomicileStateCd | 0 | CA |
| IRS990/LessCostOthBasisSalesExpnssGrp/OtherAmt | 0 | 73850 |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 1076875 |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembershipDuesAmt | 0 | 967358 |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | TO ACQUIRE AND PRESERVE AMERICA'S MOST IMPORTANT ARCHAEOLOGICAL SITES. THE CONSERVANCY IDENTIFIES IMPORTANT ENDANGERED SITES, ACQUIRES THE PROPERTY BY PURCHASE, GIFT, OR BARGAIN SALE FROM DONORS, SECURES THE PROPERTY, STABILIZES THE CULTURAL RESOURCES AT THE SITE, MANAGES THE ARCHAEOLOGICAL PRESERVE AS PART OF A LONG-TERM PLAN, AND EDUCATES THE GENERAL PUBLIC AND LOCAL OFFICIALS ABOUT THE DESTRUCTION OF OUR CULTURAL HERITAGE AND HOW TO PRESERVE WHAT REMAINS. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/MortgNotesPyblScrdInvstPropGrp/BOYAmt | 0 | 153691 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/EOYAmt | 0 | 103854 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 60832184 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 72791885 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | 398140 |
| IRS990/NetGainOrLossInvestmentsGrp/RelatedOrExemptFuncIncomeAmt | 0 | 6608 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 404748 |
| IRS990/NetRentalIncomeOrLossGrp/ExclusionAmt | 0 | 40068 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 40068 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 694630 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 58116292 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 69366979 |
| IRS990/NoncashContributionsAmt | 0 | 11020013 |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 467 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 1402 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 44869 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 46738 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 168280 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 11014 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 520893 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 700187 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 48672876 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 60710623 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | -2333 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 8555 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 2184 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 60116 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 70855 |
| IRS990/OtherExpensesGrp/Desc | 0 | SEMINARS |
| IRS990/OtherExpensesGrp/Desc | 1 | MAINTENANCE - SITES |
| IRS990/OtherExpensesGrp/Desc | 2 | MAGAZINE PUBLISHING |
| IRS990/OtherExpensesGrp/Desc | 3 | PROPERTY TAXES - SITES |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 15027 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 590223 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 391590 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 135256 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 118567 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 590223 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 391590 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 150283 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 118567 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 350317 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 302362 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 541900 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | MISCELLANEOUS REVENUE |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 62733 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 62733 |
| IRS990/OtherRevenueTotalAmt | 0 | 62733 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 89533 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 14591 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 817229 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 921353 |
| IRS990/OwnWebsiteInd | 0 | X |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | false |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 16482 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 17524 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 96794 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 130800 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 8082 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 6506 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 55552 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 70140 |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 215692 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 25151 |
| IRS990/PrincipalOfficerNm | 0 | CORY D WILKINS |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 541900 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 541800 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | EDUCATIONAL TOURS & SEMINARS |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | AMERICAN ARCHAEOLOGY MAGAZINE |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 629783 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 15735 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 629783 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 15735 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | EDUCATION: DURING THE YEAR ENDING JULY 31, 2025, THE CONSERVANCY PUBLISHED FOUR ISSUES OF "AMERICAN ARCHAEOLOGY" MAGAZINE, WHICH WERE DISTRIBUTED THROUGHOUT THE COUNTRY WITH A TOTAL DISTRIBUTION OF 20,600 COPIES PER ISSUE. ADDITIONALLY, THE CONSERVANCY CONDUCTED 9 ARCHAEOLOGICAL TRAVEL SEMINARS DURING THE FISCAL YEAR WITH OVER 200 PARTICIPANTS. |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 1384503 |
| IRS990/ProgSrvcAccomActy2Grp/RevenueAmt | 0 | 645518 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 3591964 |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYInvestmentIncomeAmt | 0 | 339527 |
| IRS990/PYOtherExpensesAmt | 0 | 2082133 |
| IRS990/PYOtherRevenueAmt | 0 | 72113 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 653474 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 721432 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 1853513 |
| IRS990/PYTotalExpensesAmt | 0 | 3935646 |
| IRS990/PYTotalRevenueAmt | 0 | 4657078 |
| IRS990/QuidProQuoContributionsInd | 0 | false |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | false |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 11267404 |
| IRS990/RegularMonitoringEnfrcInd | 0 | true |
| IRS990/RelatedEntityInd | 0 | false |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/RentalIncomeOrLossGrp/RealAmt | 0 | 40068 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | true |
| IRS990/ReportOtherAssetsInd | 0 | true |
| IRS990/ReportOtherLiabilitiesInd | 0 | true |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/RoyaltiesRevenueGrp/ExclusionAmt | 0 | 10557 |
| IRS990/RoyaltiesRevenueGrp/TotalRevenueColumnAmt | 0 | 10557 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 1538856 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 497550 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 3020983 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 3591964 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 5757833 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 9559033 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 2333400 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 24263213 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt | 0 | 353182 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus1YearAmt | 0 | 407990 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 390815 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 276522 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 213374 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt | 0 | 1641883 |
| IRS990ScheduleA/GrossReceiptsRltdActivitiesAmt | 0 | 2461347 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0.93660 |
| IRS990ScheduleA/PublicSupportPY170Pct | 0 | 0.94100 |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 24263213 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY170Ind | 0 | X |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt | 0 | 3020983 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt | 0 | 3591964 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 5757833 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 9559033 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 2333400 |
| IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt | 0 | 24263213 |
| IRS990ScheduleA/TotalSupportAmt | 0 | 25905096 |
| 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 | true |
| IRS990ScheduleD/AgentTrusteeEtcInd | 0 | false |
| IRS990ScheduleD/ArtPublicExhibitionAmountsGrp/AssetsIncludedAmt | 0 | 73310965 |
| IRS990ScheduleD/ArtPublicExhibitionAmountsGrp/RevenuesIncludedAmt | 0 | 11000000 |
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Displayed year
2025 • Form 990Detailed filing. Detailed filing data is available for this year.