Liabilities / Assets
92nd percentile
Higher debt load relative to assets than 92% of similar nonprofits.
EIN 52-1712905 • 501(c)3 • College Park, MD
Profile
The american center for physics, inc. Is organized to operate a facility to provide a national center for physics to assure the advancement and diffusion of the knowledge of physics and related sciences.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
92nd percentile
Higher debt load relative to assets than 92% of similar nonprofits.
Liabilities / Revenue
94th percentile
Higher debt load relative to revenue than 94% of similar nonprofits.
Net Margin
87th percentile
Higher net margin than 87% of similar nonprofits.
Top Officer Pay
89th percentile
Higher top officer pay than 89% of similar nonprofits.
Top officer pay equals 10.4% of source-year revenue.
Asset Growth
1st percentile
Faster asset growth than 1% of similar nonprofits.
Revenue Growth
2nd percentile
Faster revenue growth than 2% of similar nonprofits.
Assets
Down$34,527,050
Down $41,809,928 (-55%) from 2023
Liabilities
Up$33,143,957
Up $3,842,453 (+13%) from 2023
Net Assets
Down$1,383,093
Down $45,652,381 (-97%) from 2023
Revenue
Down$7,096,408
Down $15,788,331 (-69%) from 2023
Expenses
Up$3,964,849
Up $2,153,057 (+119%) from 2023
Net Income
Down$3,131,559
Down $17,941,388 (-85%) from 2023
Most recent year
2024 • Form 990Facts available. Structured filing facts are available, but richer extracted sections are limited.
American Center for Physics, Inc. is organized to operate a facility to provide a national center for physics to assure the advancement and diffusion of the knowledge of physics and related sciences.
American center for physics, inc. Provides a national center for physics and related sciences.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Investments in Publicly Traded Securities | $10,071,863 | $5,709,167 | ▼ $4,362,696 |
| Savings and Temporary Cash Investments | $36,613,379 | $1,727,869 | ▼ $34,885,510 |
| Prepaid Expenses and Deferred Charges | $463,374 | $430,041 | ▼ $33,333 |
| Accounts Receivable | $861,940 | $11,263 | ▼ $850,677 |
| Receivable From Disqualified Prsn | $0 | $0 | → $0 |
| Receivables From Officers Etc | $0 | $0 | → $0 |
| Investments Other Securities | $0 | - | - |
| Investments Program Related | $0 | - | - |
| Land, Buildings, and Equipment, Net | $0 | $0 | → $0 |
| Loans From Officers Directors | $0 | $0 | → $0 |
| Total Assets | $76,336,978 | $34,527,050 | ▼ $41,809,928 |
| Other Assets Total | $28,326,422 | $26,648,710 | ▼ $1,677,712 |
| Liabilities | |||
| Other Liabilities | $29,200,118 | $33,130,969 | ▲ $3,930,851 |
| Accounts Payable and Accrued Expenses | $101,386 | $12,988 | ▼ $88,398 |
| Total Liabilities | $29,301,504 | $33,143,957 | ▲ $3,842,453 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $47,035,474 | $1,383,093 | ▼ $45,652,381 |
| Total Net Assets Fund Balance | $47,035,474 | $1,383,093 | ▼ $45,652,381 |
| Total Liabilities and Net Assets / Fund Balance | $76,336,978 | $34,527,050 | ▼ $41,809,928 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Other Assets Org | $26,648,710 | - | - |
| Name | Title |
|---|---|
| Beth a Cunningham | President |
| Jonathan Bagger | Director |
| Michael Brosnan | Director |
| Michael H Moloney | Director |
| Jane Hopkins Gould | Secretary |
| Catherine G Swartz | Treasurer |
| Contractor | Services | Location | Compensation |
|---|---|---|---|
| DPR Construction | Construction | 1450 Veterans Blvd, Redwood City, CA 94063 | $306,112 |
| Line Item | Amount |
|---|---|
| Other Expenses | $3,964,849 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Salaries, Compensation, and Employee Benefits | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Office Expenses | $341,471 | - | - | $341,471 |
| Fees for Services Other | $289,370 | $0 | $0 | $289,370 |
| Fees for Services Accounting | $136,285 | - | - | $136,285 |
| Information Technology | $38,947 | - | - | $38,947 |
| Insurance | $34,703 | - | - | $34,703 |
| Conferences and Meetings | $3,040 | - | - | $3,040 |
| Other Expenses | $690 | - | - | $690 |
| Fees for Services Legal | $315 | - | - | $315 |
| Total Functional Expenses | $3,964,849 | $0 | $0 | $3,964,849 |
| Line Item | Amount |
|---|---|
| Expenses per Audited Statements | $3,964,849 |
| Total Expenses per Audited Statements | $3,964,849 |
| Total Expenses per Form 990 | $3,964,849 |
| Expenses Not Reported on Financial Statements | $0 |
| Expenses Not Reported on Form 990 | $0 |
| Other Expense Adjustments | $0 |
| 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 |
|---|---|
| Federal Income Taxes | $29,132,613 |
| Right-of-use Liability - Operating | $3,998,356 |
| Due to Members | - |
“Acp is a maryland not-for-profit membership corporation. The initial member organizations and current tenants are american institute of physics, incorporated (aip), american physical society (aps), and american association of physics teachers, incorporated (aapt). Each initial member organization has 100 units of voting power. Other organizations dedicated to the advancement of physics and related scientific disciplines shall be eligible for membership and tenancy upon election by a majority vote of the combined voting power of the member organizations and the concurrence of two initial, member organizations.”
“Each member of the acp elects 2 members of the board.”
“The 990 is prepared by the organization's independent accounting firm with the assistance and review of aip management. A copy of the form 990 is then reviewed by the treasurer and provided to the board before it is filed.”
“Acp does not make its governing documents available to the public. Acp will make them available on request.”
“DISTRIBUTION TO MEMBERS - -48701168; Total - -48701168;”
“Acp's accounting policy for evaluating uncertain tax positions is to recognize tax positions if it is more likely than not that the position would not be sustained upon examination by the irs. Acp does not believe there are any unrecognized tax benefits or liabilities that should be recorded as of december 31, 2024.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
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| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 101386 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 12988 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 861940 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 11263 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | AMERICAN CENTER FOR PHYSICS, INC. PROVIDES A NATIONAL CENTER FOR PHYSICS AND RELATED SCIENCES. |
| IRS990/AllOtherExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 0 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 0 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 0 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | false |
| IRS990/AuditCommitteeInd | 0 | true |
| IRS990/BackupWthldComplianceInd | 0 | true |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | CATHERINE G SWARTZ |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 3012093000 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 1 PHYSICS ELLIPSE |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | COLLEGE PARK |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MD |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 207403843 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 1 |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | false |
| IRS990/CompensationProcessOtherInd | 0 | false |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 3040 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 3040 |
| IRS990/ConflictOfInterestPolicyInd | 0 | false |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 306112 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 1450 Veterans Blvd |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | Redwood City |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 94063 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | DPR Construction |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | Construction |
| IRS990/ContractTerminationInd | 0 | X |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 0 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 3366807 |
| IRS990/CYOtherExpensesAmt | 0 | 3964849 |
| IRS990/CYOtherRevenueAmt | 0 | 0 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 3729601 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 3131559 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/CYTotalExpensesAmt | 0 | 3964849 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 7096408 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/Desc | 0 | ACP IS A MEMBERSHIP CORPORATION WHICH IS EXCLUSIVELY TO OPERATE FOR THE BENEFIT OF, TO PERFORM THE FUNCTIONS OF, AND TO CARRY OUT THE PURPOSE OF THE INITIAL MEMBER ORGANIZATIONS. |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | false |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | true |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/EscrowAccountInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 3964849 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/ProgramServicesAmt | 0 | 136285 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 136285 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 315 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 315 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 0 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 0 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 289370 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 289370 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form8282PropertyDisposedOfInd | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 40.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 1 | 40.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 2 | 40.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 3 | 40.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 4 | 40.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 5 | 40.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 3.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 10.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 10.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 3.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 3.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 3.0 |
| 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/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 65299 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 56171 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 51299 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 59859 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 53955 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 56171 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | BETH A CUNNINGHAM |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | CATHERINE G SWARTZ |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | JANE HOPKINS GOULD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | JONATHAN BAGGER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | MICHAEL BROSNAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | MICHAEL H MOLONEY |
| 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/ReportableCompFromRltdOrgAmt | 0 | 259907 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 420694 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 405087 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 677147 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 150334 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 647742 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | Director |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/FormationYr | 0 | 1991 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedInd | 0 | true |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GainOrLossGrp/OtherAmt | 0 | 0 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 1235449 |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 6 |
| IRS990/GrantAmt | 0 | 0 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 1235449 |
| IRS990/GrossReceiptsAmt | 0 | 7096408 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | true |
| IRS990/IndependentAuditFinclStmtInd | 0 | true |
| IRS990/IndependentVotingMemberCnt | 0 | 0 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIInd | 0 | X |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 38947 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 38947 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 34703 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 34703 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 2131358 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 2131358 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/InvestmentsOtherSecuritiesGrp/BOYAmt | 0 | 0 |
| IRS990/InvestmentsProgramRelatedGrp/BOYAmt | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 10071863 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 5709167 |
| IRS990/IRPDocumentCnt | 0 | 5 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 0 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 0 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 0 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 0 |
| IRS990/LegalDomicileStateCd | 0 | MD |
| 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/MembersOrStockholdersInd | 0 | true |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MiscellaneousRevenueGrp/ExclusionAmt | 0 | 0 |
| IRS990/MiscellaneousRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 0 |
| IRS990/MiscellaneousRevenueGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/MiscellaneousRevenueGrp/UnrelatedBusinessRevenueAmt | 0 | 0 |
| IRS990/MissionDesc | 0 | The purpose of the Corporation is exclusively to operate for the benefit of, to perform the functions of, and to carry out the purposes of the American Association of Physics Teachers, the American Institute of Physics Incorporated, the American Physical Society and other organizations, as may be determined from time to time, that are recognized as public charities and exempt from tax under section 501(c)(3) who are dedicated to the advancement of physics and related scientific disciplines. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 47035474 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 1383093 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | 1235449 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 1235449 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | 0 |
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| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 1383093 |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 341471 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 341471 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OnBehalfOfIssuerInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 28326422 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 26648710 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | -48701168 |
| IRS990/OtherExpensesGrp/Desc | 0 | LEASE EXPENSE |
| IRS990/OtherExpensesGrp/Desc | 1 | SHARED SERVICES EXPENSES |
| IRS990/OtherExpensesGrp/Desc | 2 | TAXES/LICENCES & FEES |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 2850732 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 269296 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 690 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 2850732 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 269296 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 690 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 29200118 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 33130969 |
| IRS990/OtherRevenueTotalAmt | 0 | 0 |
| IRS990/PartialLiquidationInd | 0 | true |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | false |
| IRS990/PoliciesReferenceChaptersInd | 0 | false |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 463374 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 430041 |
| IRS990/PrincipalOfcrBusinessName/BusinessNameLine1Txt | 0 | BETH A CUNNINGHAM |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 531120 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | MEMBERSHIP FEES |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 3729601 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 3729601 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYInvestmentIncomeAmt | 0 | 21493408 |
| IRS990/PYOtherExpensesAmt | 0 | 1811792 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 1391331 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 21072947 |
| IRS990/PYTotalExpensesAmt | 0 | 1811792 |
| IRS990/PYTotalRevenueAmt | 0 | 22884739 |
| IRS990/QuidProQuoContributionsInd | 0 | false |
| IRS990/RcvblFromDisqualifiedPrsnGrp/BOYAmt | 0 | 0 |
| IRS990/RcvblFromDisqualifiedPrsnGrp/EOYAmt | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | false |
| IRS990/ReceivablesFromOfficersEtcGrp/BOYAmt | 0 | 0 |
| IRS990/ReceivablesFromOfficersEtcGrp/EOYAmt | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 3131559 |
| IRS990/RegularMonitoringEnfrcInd | 0 | false |
| IRS990/RelatedEntityInd | 0 | true |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/RentalIncomeOrLossGrp/PersonalAmt | 0 | 0 |
| IRS990/RentalIncomeOrLossGrp/RealAmt | 0 | 0 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | false |
| IRS990/ReportOtherAssetsInd | 0 | true |
| IRS990/ReportOtherLiabilitiesInd | 0 | true |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/RevenueAmt | 0 | 3729601 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 36613379 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 1727869 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/Contribution35ControlledInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ContributionControllerInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ContributionFamilyInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ControlledDisqualifiedPrsnInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/DisqualifiedPrsnControllIntInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/DisqualifiedPrsnOwnrIntInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ExcessBusinessHoldingsRulesInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ListedByNameGoverningDocInd | 0 | true |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/LoanDisqualifiedPersonInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/OrganizationChangeSuprtOrgInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/PaymentSubstantialContribtrInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SupportedOrgNotOrganizedUSInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SupportedOrgSectionC456Ind | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SupportNonSupportedOrgInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SuprtOrgNoIRSDeterminationInd | 0 | false |
| IRS990ScheduleA/MajorityDirTrstSupportedOrgInd | 0 | true |
| IRS990ScheduleA/OtherSupportSumAmt | 0 | 0 |
| IRS990ScheduleA/SupportedOrganizationsCnt | 0 | 3 |
| IRS990ScheduleA/SupportedOrganizationsTotalCnt | 0 | 3 |
| IRS990ScheduleA/SupportedOrgInformationGrp/EIN | 0 | 131667053 |
| IRS990ScheduleA/SupportedOrgInformationGrp/EIN | 1 | 131656610 |
| IRS990ScheduleA/SupportedOrgInformationGrp/EIN | 2 | 520749775 |
| IRS990ScheduleA/SupportedOrgInformationGrp/GoverningDocumentListedInd | 0 | true |
| IRS990ScheduleA/SupportedOrgInformationGrp/GoverningDocumentListedInd | 1 | true |
| IRS990ScheduleA/SupportedOrgInformationGrp/GoverningDocumentListedInd | 2 | true |
| IRS990ScheduleA/SupportedOrgInformationGrp/OrganizationTypeCd | 0 | 9 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OrganizationTypeCd | 1 | 9 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OrganizationTypeCd | 2 | 9 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OtherSupportAmt | 0 | 0 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OtherSupportAmt | 1 | 0 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OtherSupportAmt | 2 | 0 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportAmt | 0 | 1968512 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportAmt | 1 | 1523067 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportAmt | 2 | 238022 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportedOrganizationName/BusinessNameLine1Txt | 0 | AMERICAN INSTITUTE OF PHYSICS INCORPORATED |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportedOrganizationName/BusinessNameLine1Txt | 1 | AMERICAN PHYSICAL SOCIETY |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportedOrganizationName/BusinessNameLine1Txt | 2 | AMERICAN ASSOCIATION OF PHYSICS TEACHERS INCORPORATED |
| IRS990ScheduleA/SupportingOrganization509a3Ind | 0 | X |
| IRS990ScheduleA/SupportingOrgType2Ind | 0 | X |
| IRS990ScheduleA/SupportSumAmt | 0 | 3729601 |
| IRS990/ScheduleBRequiredInd | 0 | false |
| IRS990ScheduleD/ExpensesNotReportedAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesNotRptFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesSubtotalAmt | 0 | 3964849 |
| IRS990ScheduleD/FootnoteTextInd | 0 | X |
| IRS990ScheduleD/NetUnrealizedGainsInvstAmt | 0 | -82772 |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 0 | 26648710 |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 0 | RIGHT OF USE |
| IRS990ScheduleD/OtherExpensesIncludedAmt | 0 | 0 |
| IRS990ScheduleD/OtherExpensesNotIncludedAmt | 0 | 0 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 0 | 29132613 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 1 | 3998356 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 0 | Federal Income Taxes |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 1 | RIGHT-OF-USE LIABILITY - OPERATING |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 2 | DUE TO MEMBERS |
| IRS990ScheduleD/OtherRevenueAmt | 0 | 0 |
| IRS990ScheduleD/OtherRevenuesNotIncludedAmt | 0 | 0 |
| IRS990ScheduleD/RevenueNotReportedAmt | 0 | -82772 |
| IRS990ScheduleD/RevenueNotReportedFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/RevenueSubtotalAmt | 0 | 7096408 |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 0 | ACP'S ACCOUNTING POLICY FOR EVALUATING UNCERTAIN TAX POSITIONS IS TO RECOGNIZE TAX POSITIONS IF IT IS MORE LIKELY THAN NOT THAT THE POSITION WOULD NOT BE SUSTAINED UPON EXAMINATION BY THE IRS. ACP DOES NOT BELIEVE THERE ARE ANY UNRECOGNIZED TAX BENEFITS OR LIABILITIES THAT SHOULD BE RECORDED AS OF DECEMBER 31, 2024. |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Schedule D, Part X, Line 2 FIN 48 (ASC 740) footnote |
| IRS990ScheduleD/TotalBookValueOtherAssetsAmt | 0 | 26648710 |
| IRS990ScheduleD/TotalExpensesPerForm990Amt | 0 | 3964849 |
| IRS990ScheduleD/TotalLiabilityAmt | 0 | 33130969 |
| IRS990ScheduleD/TotalRevenuePerForm990Amt | 0 | 7096408 |
| IRS990ScheduleD/TotalRevEtcAuditedFinclStmtAmt | 0 | 7013636 |
| IRS990ScheduleD/TotExpnsEtcAuditedFinclStmtAmt | 0 | 3964849 |
| IRS990ScheduleJ/AnyNonFixedPaymentsInd | 0 | false |
| IRS990ScheduleJ/CompBasedOnRevenueOfFlngOrgInd | 0 | false |
| IRS990ScheduleJ/CompBsdNetEarnsFlngOrgInd | 0 | false |
| IRS990ScheduleJ/CompBsdNetEarnsRltdOrgsInd | 0 | false |
| IRS990ScheduleJ/CompBsdOnRevRelatedOrgsInd | 0 | false |
| IRS990ScheduleJ/EquityBasedCompArrngmInd | 0 | false |
| IRS990ScheduleJ/InitialContractExceptionInd | 0 | false |
| IRS990/ScheduleJRequiredInd | 0 | true |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BaseCompensationFilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BaseCompensationFilingOrgAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BaseCompensationFilingOrgAmt | 2 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BaseCompensationFilingOrgAmt | 3 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BaseCompensationFilingOrgAmt | 4 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BaseCompensationFilingOrgAmt | 5 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusFilingOrganizationAmount | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusFilingOrganizationAmount | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusFilingOrganizationAmount | 2 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusFilingOrganizationAmount | 3 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusFilingOrganizationAmount | 4 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusFilingOrganizationAmount | 5 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusRelatedOrganizationsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusRelatedOrganizationsAmt | 1 | 46765 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusRelatedOrganizationsAmt | 2 | 10000 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusRelatedOrganizationsAmt | 3 | 70000 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusRelatedOrganizationsAmt | 4 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusRelatedOrganizationsAmt | 5 | 97882 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompensationBasedOnRltdOrgsAmt | 0 | 259907 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompensationBasedOnRltdOrgsAmt | 1 | 354769 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompensationBasedOnRltdOrgsAmt | 2 | 395087 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompensationBasedOnRltdOrgsAmt | 3 | 607147 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompensationBasedOnRltdOrgsAmt | 4 | 150334 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompensationBasedOnRltdOrgsAmt | 5 | 525891 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990FilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990FilingOrgAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990FilingOrgAmt | 2 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990FilingOrgAmt | 3 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990FilingOrgAmt | 4 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990FilingOrgAmt | 5 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990RltdOrgsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990RltdOrgsAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990RltdOrgsAmt | 2 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990RltdOrgsAmt | 3 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990RltdOrgsAmt | 4 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990RltdOrgsAmt | 5 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompensationFlngOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompensationFlngOrgAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompensationFlngOrgAmt | 2 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompensationFlngOrgAmt | 3 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompensationFlngOrgAmt | 4 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompensationFlngOrgAmt | 5 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompRltdOrgsAmt | 0 | 23392 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompRltdOrgsAmt | 1 | 34500 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompRltdOrgsAmt | 2 | 27600 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompRltdOrgsAmt | 3 | 27600 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompRltdOrgsAmt | 4 | 13530 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompRltdOrgsAmt | 5 | 34500 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsFilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsFilingOrgAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsFilingOrgAmt | 2 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsFilingOrgAmt | 3 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsFilingOrgAmt | 4 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsFilingOrgAmt | 5 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsRltdOrgsAmt | 0 | 41907 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsRltdOrgsAmt | 1 | 21671 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsRltdOrgsAmt | 2 | 23699 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsRltdOrgsAmt | 3 | 32259 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsRltdOrgsAmt | 4 | 40425 |
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