Liabilities / Assets
4th percentile
Higher debt load relative to assets than 4% of similar nonprofits.
Precomputed percentiles for this filing year versus similar nonprofits in the same peer cohort.
Liabilities / Assets
4th percentile
Higher debt load relative to assets than 4% of similar nonprofits.
Liabilities / Revenue
7th percentile
Higher debt load relative to revenue than 7% of similar nonprofits.
Net Margin
89th percentile
Higher net margin than 89% of similar nonprofits.
Top Officer Pay
47th percentile
Higher top officer pay than 47% of similar nonprofits.
Top officer pay equals 2.7% of source-year revenue.
Asset Growth
18th percentile
Faster asset growth than 18% of similar nonprofits.
Revenue Growth
35th percentile
Faster revenue growth than 35% of similar nonprofits.
Assets
Flat$1,435,527,775
Flat from 2023
Net Assets
Flat$1,432,902,547
Flat from 2023
Liabilities
Flat$2,625,228
Flat from 2023
Revenue
Flat$65,362,351
Flat from 2023
Expenses
Flat$45,135,019
Flat from 2023
Net Income
Flat$20,227,332
Flat from 2023
To facilitate harvard university's scientific, literary, and educational activities in washington, dc.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Investments in Publicly Traded Securities | $712,922,665 | $694,248,852 | ▼ $18,673,813 |
| Investments Other Securities | $566,183,424 | $574,899,233 | ▲ $8,715,809 |
| Land, Buildings, and Equipment, Net | $95,048,424 | $102,772,254 | ▲ $7,723,830 |
| Pledges and Grants Receivable | $1,768,667 | $0 | ▼ $1,768,667 |
| Cash and Non-Interest-Bearing Accounts | $980,886 | $516,941 | ▼ $463,945 |
| Prepaid Expenses and Deferred Charges | $77,347 | $183,973 | ▲ $106,626 |
| Accounts Receivable | $118,377 | $176,738 | ▲ $58,361 |
| Inventories for Sale or Use | $66,320 | $66,320 | → $0 |
| Savings and Temporary Cash Investments | $0 | $0 | → $0 |
| Other Notes and Loans Receivable, Net | $0 | $0 | → $0 |
| Receivable From Disqualified Prsn | $0 | $0 | → $0 |
| Receivables From Officers Etc | $0 | $0 | → $0 |
| Investments Program Related | $0 | - | - |
| Pd in Cap Srpls Land Bldg Eqp Fund | $0 | - | - |
| Rtn Earn Endowment Incm Other Fnds | $0 | - | - |
| Cap Stk Tr Prin Current Funds | $0 | - | - |
| Intangible Assets | $0 | $0 | → $0 |
| Loans From Officers Directors | $0 | $0 | → $0 |
| Total Assets | $1,451,909,922 | $1,435,527,775 | ▼ $16,382,147 |
| Other Assets Total | $74,743,812 | $62,663,464 | ▼ $12,080,348 |
| Liabilities | |||
| Other Liabilities | $0 | $1,626,517 | ▲ $1,626,517 |
| Accounts Payable and Accrued Expenses | $1,235,739 | $994,946 | ▼ $240,793 |
| Deferred Revenue | $3,765 | $3,765 | → $0 |
| Grants Payable | $0 | $0 | → $0 |
| Mortgage Notes Payable Secured by Investment Property | $0 | $0 | → $0 |
| Unsecured Notes Loans Payable | $0 | $0 | → $0 |
| Escrow Account Liability | $0 | $0 | → $0 |
| Tax Exempt Bond Liabilities | $0 | $0 | → $0 |
| Total Liabilities | $1,239,504 | $2,625,228 | ▲ $1,385,724 |
| Net Assets / Fund Balance | |||
| Net Assets With Donor Restrictions | $1,207,056,362 | $1,189,202,779 | ▼ $17,853,583 |
| Net Assets Without Donor Restrictions | $243,614,056 | $243,699,768 | ▲ $85,712 |
| Total Net Assets Fund Balance | $1,450,670,418 | $1,432,902,547 | ▼ $17,767,871 |
| Total Liabilities and Net Assets / Fund Balance | $1,451,909,922 | $1,435,527,775 | ▼ $16,382,147 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Buildings | $83,808,778 | $56,542,219 | $140,350,997 |
| Other Land Buildings | $14,982,692 | - | $14,982,692 |
| Land | $3,172,680 | - | $3,172,680 |
| Equipment | $808,104 | $1,869,597 | $2,677,701 |
| Other Securities | $500,586,533 | - | - |
| Period | Beginning | Contrib. | Gain/Loss | Other Uses | End |
|---|---|---|---|---|---|
| 2022 | $1,309,230,000 | $0 | ▲ $34,907,000 | $50,938,000 | $1,281,528,000 |
| 2021 | $1,394,011,000 | $0 | ▼ $25,150,000 | $49,178,000 | $1,309,230,000 |
| 2020 | $1,099,616,000 | $125,000 | ▲ $349,486,000 | $45,661,000 | $1,394,011,000 |
| 2019 | $1,080,637,000 | $0 | ▲ $73,578,000 | $45,005,000 | $1,099,616,000 |
| 2018 | $1,069,178,000 | $0 | ▲ $64,963,000 | $43,996,000 | $1,080,637,000 |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| - | Director, Dumbarton Oaks | FT | $255,475 | $168,673 | $424,148 |
| - | Senior Director, Federal Relations | FT | $259,757 | $9,549 | $269,306 |
| - | Executive Director, Dumbarton Oaks | FT | $195,337 | $5,219 | $200,556 |
| - | Director of Facilities, Dumbarton Oaks | FT | $160,255 | $9,159 | $169,414 |
| - | Executive Editor & Director, Belknap Publishing | FT | $168,574 | $208 | $168,782 |
| - | Director, Garden & Landscape Studies | FT | $156,379 | $10,353 | $166,732 |
| - | Director, Center for Hellenic Studies | FT | - | $119,336 | $119,336 |
| Name | Title |
|---|---|
| - | President |
| - | Trustee |
| - | Trustee/treasurer |
| - | Secretary |
| - | See Schedule O |
| Contractor | Services | Location | Compensation |
|---|---|---|---|
| Gilbane Building Company | Construction Services | 1100 N GLEBE ROAD, 11TH FL, Arlington, VA 22201 | $1,832,984 |
| Gardaworld Security Services | Security Services | PO BOX 843886, Kansas City, MO 64184 | $1,709,459 |
| Selldorf Architects | Architect Services | 860 BROADWAY, New York, NY 10003 | $1,188,560 |
| Jodi Macklin Interior Design | Interior Design Services | 4817 DORSET AVENUE, Chevy Chase, MD 20815 | $935,087 |
| Ewingcole INC | Architect Services | 330 7TH AVENUE, New York, NY 10001 | $399,824 |
| Line Item | Amount |
|---|---|
| Other Expenses | $30,477,807 |
| Salaries, Compensation, and Employee Benefits | $12,656,745 |
| Grants and Similar Amounts Paid | $2,000,467 |
| Professional Fundraising Fees | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $7,966,551 | $1,030,419 | - | $8,996,970 |
| Occupancy | $4,907,396 | $742,515 | - | $5,649,911 |
| Depreciation Depletion | $3,444,198 | $431,373 | - | $3,875,571 |
| Fees for Services Other | $1,715,076 | $166,723 | $0 | $1,881,799 |
| Other Employee Benefits | $1,434,760 | $328,483 | - | $1,763,243 |
| Grants to Domestic Individuals | $1,494,988 | - | - | $1,494,988 |
| Information Technology | $1,038,341 | $60,695 | - | $1,099,036 |
| Office Expenses | $947,687 | $78,003 | - | $1,025,690 |
| Pension Plan Contributions | $778,219 | $43,919 | - | $822,138 |
| Travel | $786,311 | $23,785 | - | $810,096 |
| Payroll Taxes | $672,679 | $87,007 | - | $759,686 |
| Conferences and Meetings | $712,217 | $15,056 | - | $727,273 |
| Foreign Grants | $505,479 | - | - | $505,479 |
| All Other Expenses | $339,107 | $47,515 | $0 | $386,622 |
| Other Expenses | $328,900 | $1,237 | - | $330,137 |
| Current Officers, Directors, Trustees, and Key Employees | $157,354 | $157,354 | - | $314,708 |
| Insurance | $96,283 | $174,589 | - | $270,872 |
| Fees for Services Management | $162,293 | $20,327 | - | $182,620 |
| Fees for Services Legal | - | $130,974 | - | $130,974 |
| Fees for Services Accounting | $3,308 | $53,394 | - | $56,702 |
| Advertising | $39,976 | $1,736 | - | $41,712 |
| Royalties | $980 | - | - | $980 |
| Total Functional Expenses | $40,715,640 | $4,419,379 | $0 | $45,135,019 |
| Region | Activity | Services | Offices | Employees | Spending |
|---|---|---|---|---|---|
| Europe (Including Iceland and Greenland) | Grantmaking | Educational Activities | - | - | $390,602 |
| Europe (Including Iceland and Greenland) | Program Services | Educational Activities | - | - | $295,074 |
| East Asia and the Pacific | Grantmaking | Educational Activities | - | - | $86,000 |
| North America (Canada & Mexico only) | Program Services | Educational Activities | - | - | $18,838 |
| North America (Canada & Mexico only) | Grantmaking | Educational Activities | - | - | $16,454 |
| East Asia and the Pacific | Program Services | Educational Activities | - | - | $16,295 |
| South America | Program Services | - | - | - | $14,635 |
| Sub-Saharan Africa | Grantmaking | - | - | - | $9,000 |
| South America | Grantmaking | - | - | - | $3,423 |
| South Asia | Program Services | - | - | - | $1,822 |
| Middle East and North Africa | Program Services | Educational Activities | - | - | $940 |
| Central America and the Caribbean | Program Services | Educational Activities | 3 | 7 | $928 |
| Sub-Saharan Africa | Program Services | - | - | - | $33 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
| Line Item | Beginning | End | Change |
|---|---|---|---|
| Loans from Officers, Directors, Trustees, and Key Employees | $0 | $0 | → $0 |
| Receivables from Disqualified Persons | $0 | $0 | → $0 |
| Receivables from Officers, Directors, Trustees, and Key Employees | $0 | $0 | → $0 |
| Liability | Amount |
|---|---|
| Deposits & Other Liabilities | $1,624,409 |
| Deferred Revenue | $2,108 |
“The governing board of trustees for harvard university is comprised of the same individuals as the governing board of the president and fellows of harvard college. Certain officers, trustees, and key employees of trustees for harvard university are employed by president and fellows of harvard college, including president bacow, secretary goodheart, trustee mills, and key employee nagy. Key employee cummins has a faculty appointment at the president and fellows of harvard college.”
“Trustees is subject to the same policies and procedures as the president and fellows of harvard college for determining and reviewing compensation of its officers. The president and fellows of harvard college has disclosed in its form 990 the process undertaken to determine compensation. Officers are not compensated in their capacity as officers of trustees for harvard university. Certain officers of the filing organization also serve as officers of the president and fellows of harvard college and are compensated by president and fellows of harvard college for services performed for that organization. Each key employee of trustees is also a harvard university faculty member within the faculty of arts and sciences and the process for determining compensation is described below: the salaries of the key employees are set annually by the divisional dean and approved by the dean of the faculty of arts and sciences (fas). The process follows that in place for all fas faculty members. The amount is set on a standard 9-month basis, and does not include any direct recognition of director duties. In recognition of their respective roles, each key employee is provided with a supplemental compensation amount which is included in the figures reported on part vii and schedule j. In addition, both individuals are eligible to earn salary during the summer months, provided they have external funding.”
“Certain actions of the trustees governing body, such as the election of new directors and amendments to the corporate statutes, are subject to the consent of harvard university's board of overseers.”
“The trustees for harvard university form 990 was reviewed by the university's tax return review committees, comprising senior finance staff and internal and external counsel. The form 990 was also reviewed by the university's joint committee on inspection, consisting of members of the harvard corporation and the board of overseers. The final form 990 was provided to the entire board of the filing organization before it was filed.”
“Trustees is subject to the same conflict of interest policies and procedures as the president and fellows of harvard college. Annually, harvard university's office of the general counsel distributes a policy on conflicts of interest and commitment for senior officers and senior administrators, and an annual disclosure form, to the individuals subject to the policy. The completed forms are reviewed by the office of the general counsel. A parallel process is carried out annually by the office of the governing boards for the university's corporate directors, who are the same individuals that serve on the governing board for the filing organization. The completed forms of directors are reviewed by both the office of the general counsel and the secretary of the university.”
“Trustees for harvard university's financial statements are incorporated in harvard university's consolidated financial statements, which are available on harvard university's website. Harvard university's conflict of interest policy is available on harvard's intranet, accessible to members of the harvard community. Trustees' charter is available upon request.”
“The university does not track hours worked by trustees, officers, key employees or highest compensated employees. The average hours worked reported on part vii, line 1a, column (b) are estimates, with 60 hours per week representing full time employment. Actual hours worked per week may vary. The hours per week devoted to related organizations represents an estimate of time the individual spends in his/her capacity as a member of the board of directors and/or as an employee of harvard affiliates.”
“Drew faust was president until 6/30/2018 and then began her new role as university professor at harvard university. Gregory nagy was director of center for hellenic studies until 6/30/21 and then began his new role as faculty of arts and sciences at harvard university. Jan ziolkowski was director of dumbarton oaks until 6/30/2020 and then returned to his role as faculty of arts and sciences at harvard university.”
“Transfers to related organizations - -10116657;”
“Harvard university's financial statements include the activities of certain subsidiaries that file separate tax returns, including trustees for harvard university. The financial statements for the fiscal year ended june 30, 2023 were audited by an independent accountant.”
“All disbursements made by this institution in furtherance of its exempt programs are reviewed and approved by authorized committees or individuals. All scholarships are reviewed and approved by harvard's financial aid offices.”
“The university's vast array of museums and libraries houses priceless works of art, historical treasures, literary works, and artifacts. These collections are protected and preserved for public exhibition, education, research, and the furtherance of public service. They are neither disposed of for financial gain nor encumbered in any manner. Accordingly, such collections are not recorded for financial statement purposes.”
“Center for hellenic studies collections the center for hellenic studies collections is mainly a library collection comprising approximately 65,000 volumes in the field of hellenic studies covering a wide range of disciplines. The library collection is a valuable resource to researchers. Dumbarton oaks collections the dumbarton oaks museum comprises three collections (the byzantine collection, the robert woods bliss collection of pre-columbian art, and the house collection). The dumbarton oaks museum has 35,000 objects recorded and managed through an electronic database in a wide range of media - minor art, sculpture, antique furniture, textiles and wall tapestries, floor mosaics, prints, painting and monumental fresco replica painting coming from europe, middle and south america, north america, and asia. The dumbarton oaks museum's collections are an important resource for the scholarly community of the dumbarton oaks research institute as well as to students and a broader general public. The mission of the dumbarton oaks museum is to connect scholars with art and art scholarship with the public. Through an active program of research and exhibitions, the museum strives to advance knowledge and stimulate appreciation of art by engaging visitors aesthetically, visually, and intellectually.”
“The primary goal of the endowment is to support trustees' mission of facilitating harvard university's scientific, literary, and educational activities in washington, dc.”
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 | 1235739 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 994946 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 118377 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 176738 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | TO FACILITATE HARVARD UNIVERSITY'S SCIENTIFIC, LITERARY, AND EDUCATIONAL ACTIVITIES IN WASHINGTON, DC. |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 1736 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 39976 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 41712 |
| IRS990/AllOtherContributionsAmt | 0 | 391333 |
| IRS990/AllOtherExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 47515 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 339107 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 386622 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | true |
| IRS990/AuditCommitteeInd | 0 | true |
| IRS990/BackupWthldComplianceInd | 0 | true |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | Office of the Controller |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 6174957792 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 1033 Massachusetts Avenue 3rd Floor |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | Cambridge |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 02138 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CapStkTrPrinCurrentFundsGrp/BOYAmt | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 980886 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 516941 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 27 |
| IRS990/CollectionsOfArtInd | 0 | true |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 157354 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 157354 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 314708 |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | false |
| IRS990/CompensationProcessOtherInd | 0 | false |
| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 15056 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 712217 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 727273 |
| IRS990/ConflictOfInterestPolicyInd | 0 | true |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | true |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 1832984 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 1 | 1709459 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 2 | 1188560 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 3 | 935087 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 4 | 399824 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 1100 N GLEBE ROAD |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 1 | PO BOX 843886 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 2 | 860 BROADWAY |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 3 | 4817 DORSET AVENUE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 4 | 330 7TH AVENUE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine2Txt | 0 | 11TH FL |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | ARLINGTON |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 1 | KANSAS CITY |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 2 | NEW YORK |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 3 | CHEVY CHASE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 4 | NEW YORK |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | VA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 1 | MO |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 2 | NY |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 3 | MD |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 4 | NY |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 22201 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 1 | 64184 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 2 | 10003 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 3 | 20815 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 4 | 10001 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | GILBANE BUILDING COMPANY |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 1 | GARDAWORLD SECURITY SERVICES |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 2 | SELLDORF ARCHITECTS |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 3 | JODI MACKLIN INTERIOR DESIGN |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 4 | EWINGCOLE INC |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | CONSTRUCTION SERVICES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 1 | SECURITY SERVICES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 2 | ARCHITECT SERVICES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 3 | INTERIOR DESIGN SERVICES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 4 | ARCHITECT SERVICES |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 965605 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 2000467 |
| IRS990/CYInvestmentIncomeAmt | 0 | 63936378 |
| IRS990/CYOtherExpensesAmt | 0 | 30477807 |
| IRS990/CYOtherRevenueAmt | 0 | 45515 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 414853 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 20227332 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 12656745 |
| IRS990/CYTotalExpensesAmt | 0 | 45135019 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 65362351 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | true |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 3765 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 3765 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 431373 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 3444198 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 3875571 |
| IRS990/Desc | 0 | DUMBARTON OAKS IS A MUSEUM, RESEARCH LIBRARY, AND EDUCATIONAL FACILITY FOR THE STUDY OF BYZANTINE AND MEDIEVAL HUMANITIES, PRE-COLUMBIAN ART, AND LANDSCAPE ARCHITECTURE. THE FACILITY SERVES APPROXIMATELY 67 FELLOWS. |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | true |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 1207056362 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 1189202779 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | true |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 152 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | true |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/EscrowAccountLiabilityGrp/BOYAmt | 0 | 0 |
| IRS990/EscrowAccountLiabilityGrp/EOYAmt | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 34304516 |
| IRS990/FamilyOrBusinessRlnInd | 0 | true |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 53394 |
| IRS990/FeesForServicesAccountingGrp/ProgramServicesAmt | 0 | 3308 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 56702 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 130974 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 130974 |
| IRS990/FeesForServicesManagementGrp/ManagementAndGeneralAmt | 0 | 20327 |
| IRS990/FeesForServicesManagementGrp/ProgramServicesAmt | 0 | 162293 |
| IRS990/FeesForServicesManagementGrp/TotalAmt | 0 | 182620 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 0 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 166723 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 1715076 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 1881799 |
| IRS990/ForeignActivitiesInd | 0 | true |
| IRS990/ForeignCountryCd | 0 | GR |
| IRS990/ForeignFinancialAccountInd | 0 | true |
| IRS990/ForeignGrantsGrp/ProgramServicesAmt | 0 | 505479 |
| IRS990/ForeignGrantsGrp/TotalAmt | 0 | 505479 |
| IRS990/ForeignOfficeInd | 0 | true |
| IRS990/Form8282PropertyDisposedOfInd | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 62.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 1 | 10.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 2 | 5.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 3 | 5.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 4 | 5.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 5 | 45.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 6 | 5.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 7 | 5.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 8 | 9.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 9 | 5.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 10 | 5.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 11 | 5.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 12 | 5.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 13 | 60.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 14 | 20.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 18 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 19 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 20 | 0.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 21 | 60.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 22 | 20.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 23 | 60.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 1.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 1.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 1.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 1.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 1.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 1.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 1.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 1.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 1.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 1.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 1.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 1.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 1.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 1.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 40.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 60.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 40.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 60.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 18 | 60.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 19 | 60.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 20 | 35.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 21 | 0.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 22 | 0.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 23 | 0.0 |
| IRS990/Form990PartVIISectionAGrp/BusinessName/BusinessNameLine1Txt | 0 | LAWRENCE S BACOW |
| IRS990/Form990PartVIISectionAGrp/BusinessName/BusinessNameLine1Txt | 1 | PAUL J FINNEGAN |
| IRS990/Form990PartVIISectionAGrp/BusinessName/BusinessNameLine1Txt | 2 | BIDDY MARTIN |
| IRS990/Form990PartVIISectionAGrp/BusinessName/BusinessNameLine1Txt | 3 | DAVID M RUBENSTEIN |
| IRS990/Form990PartVIISectionAGrp/BusinessName/BusinessNameLine1Txt | 4 | DIANA L NELSON |
| IRS990/Form990PartVIISectionAGrp/BusinessName/BusinessNameLine1Txt | 5 | KAREN GORDON MILLS |
| IRS990/Form990PartVIISectionAGrp/BusinessName/BusinessNameLine1Txt | 6 | KENNETH I CHENAULT |
| IRS990/Form990PartVIISectionAGrp/BusinessName/BusinessNameLine1Txt | 7 | MARIANO-FLORENTINO CUELLAR |
| IRS990/Form990PartVIISectionAGrp/BusinessName/BusinessNameLine1Txt | 8 | PENNY S PRITZKER |
| IRS990/Form990PartVIISectionAGrp/BusinessName/BusinessNameLine1Txt | 9 | SHIRLEY M TILGHMAN |
| IRS990/Form990PartVIISectionAGrp/BusinessName/BusinessNameLine1Txt | 10 | THEODORE V WELLS JR |
| IRS990/Form990PartVIISectionAGrp/BusinessName/BusinessNameLine1Txt | 11 | TIMOTHY R BARAKETT |
| IRS990/Form990PartVIISectionAGrp/BusinessName/BusinessNameLine1Txt | 12 | TRACY PALANDJIAN |
| IRS990/Form990PartVIISectionAGrp/BusinessName/BusinessNameLine1Txt | 13 | MARC L GOODHEART |
| IRS990/Form990PartVIISectionAGrp/BusinessName/BusinessNameLine1Txt | 14 | MARK SCHIEFSKY |
| IRS990/Form990PartVIISectionAGrp/BusinessName/BusinessNameLine1Txt | 15 | THOMAS BF CUMMINS |
| IRS990/Form990PartVIISectionAGrp/BusinessName/BusinessNameLine1Txt | 16 | DAVID CONINE |
| IRS990/Form990PartVIISectionAGrp/BusinessName/BusinessNameLine1Txt | 17 | JOY DE MENIL |
| IRS990/Form990PartVIISectionAGrp/BusinessName/BusinessNameLine1Txt | 18 | PANAGIOTA BATSAKIS |
| IRS990/Form990PartVIISectionAGrp/BusinessName/BusinessNameLine1Txt | 19 | SUZANNE DAY |
| IRS990/Form990PartVIISectionAGrp/BusinessName/BusinessNameLine1Txt | 20 | THAISA WAY |
| IRS990/Form990PartVIISectionAGrp/BusinessName/BusinessNameLine1Txt | 21 | DREW GILPIN FAUST |
| IRS990/Form990PartVIISectionAGrp/BusinessName/BusinessNameLine1Txt | 22 | GREGORY NAGY |
| IRS990/Form990PartVIISectionAGrp/BusinessName/BusinessNameLine1Txt | 23 | JAN M ZIOLKOWSKI |
| IRS990/Form990PartVIISectionAGrp/FormerOfcrDirectorTrusteeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/FormerOfcrDirectorTrusteeInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/FormerOfcrDirectorTrusteeInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 7 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 8 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 9 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 10 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 11 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 12 | X |
| IRS990/Form990PartVIISectionAGrp/KeyEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/KeyEmployeeInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 423243 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 33135 |
| 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 | 67455 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 177229 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 15 | 196175 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 15011 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 17 | 18050 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 18 | 22909 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 19 | 34070 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 20 | 25736 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 21 | 66383 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 22 | 58777 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 23 | 29600 |
| 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 | 260599 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 16 | 163288 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 17 | 168668 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 18 | 200423 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 19 | 268170 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 20 | 160608 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 21 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 22 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 23 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 1333866 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 2083 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 170482 |
| 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 | 498064 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 14 | 271998 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 18 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 19 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 20 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 21 | 395290 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 22 | 263011 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 23 | 233944 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | TRUSTEE/TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | DIRECTOR, CENTER FOR HELLENIC STUDIES |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | DIRECTOR, DUMBARTON OAKS |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | DIRECTOR OF FACILITIES, DUMBARTON OAKS |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | EXECUTIVE EDITOR & DIRECTOR, BELKNAP PUBLISHING |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 18 | EXECUTIVE DIRECTOR, DUMBARTON OAKS |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 19 | SENIOR DIRECTOR, FEDERAL RELATIONS |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 20 | DIRECTOR, GARDEN & LANDSCAPE STUDIES |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 21 | SEE SCHEDULE O |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 22 | SEE SCHEDULE O |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 23 | SEE SCHEDULE O |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/FormationYr | 0 | 1941 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | true |
| IRS990/FSAuditedBasisGrp/ConsolidatedBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | true |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GainOrLossGrp/OtherAmt | 0 | 0 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 59018820 |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 13 |
| IRS990/GovernmentGrantsAmt | 0 | 31910 |
| IRS990/GrantAmt | 0 | 1164363 |
| IRS990/GrantsPayableGrp/BOYAmt | 0 | 0 |
| IRS990/GrantsPayableGrp/EOYAmt | 0 | 0 |
| IRS990/GrantsToDomesticIndividualsGrp/ProgramServicesAmt | 0 | 1494988 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 1494988 |
| IRS990/GrantsToIndividualsInd | 0 | true |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 421304865 |
| IRS990/GrossReceiptsAmt | 0 | 427648396 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 10 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 28 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartVInd | 0 | X |
| IRS990/InfoInScheduleOPartXIInd | 0 | X |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 60695 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 1038341 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 1099036 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 174589 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 96283 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 270872 |
| IRS990/IntangibleAssetsGrp/BOYAmt | 0 | 0 |
| IRS990/IntangibleAssetsGrp/EOYAmt | 0 | 0 |
| IRS990/InventoriesForSaleOrUseGrp/BOYAmt | 0 | 66320 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 66320 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 4917558 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 4917558 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/InvestmentsOtherSecuritiesGrp/BOYAmt | 0 | 566183424 |
| IRS990/InvestmentsOtherSecuritiesGrp/EOYAmt | 0 | 574899233 |
| IRS990/InvestmentsProgramRelatedGrp/BOYAmt | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 712922665 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 694248852 |
| IRS990/IRPDocumentCnt | 0 | 172 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 58411816 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 95048424 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 102772254 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 161184070 |
| IRS990/LegalDomicileStateCd | 0 | DC |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 362286045 |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LoansFromOfficersDirectorsGrp/BOYAmt | 0 | 0 |
| IRS990/LoansFromOfficersDirectorsGrp/EOYAmt | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembershipDuesAmt | 0 | 542362 |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
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Displayed year
2023 • Form 990Detailed filing. Detailed filing data is available for this year.