Liabilities / Assets
4th percentile
Higher debt load relative to assets than 4% of similar nonprofits.
EIN 35-1812636 • 501(c)3 • Indianapolis, IN
Profile
The indianapolis symphony orchestra foundation, inc. (the "iso foundation") was formed in september 1990 for the purpose of educating the public and providing financial and other support to the indiana symphony society, inc. (the "society"), an indiana not-for-profit corporation that operates the indianapolis symphony orchestra. It is the general practice of the society to transfer contributions raised, other than annual fund contributions, to the iso foundation unless a donor specifically requires the contribution to be maintained by the society. All fundraising expenses are recorded and reported in the society's accounts.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
4th percentile
Higher debt load relative to assets than 4% of similar nonprofits.
Liabilities / Revenue
6th percentile
Higher debt load relative to revenue than 6% of similar nonprofits.
Net Margin
50th percentile
Higher net margin than 50% of similar nonprofits.
Top Officer Pay
5th percentile
Higher top officer pay than 5% of similar nonprofits.
Top officer pay equals 0.0% of source-year revenue.
Asset Growth
48th percentile
Faster asset growth than 48% of similar nonprofits.
Revenue Growth
74th percentile
Faster revenue growth than 74% of similar nonprofits.
Assets
Up$121,112,166
Up $6,189,748 (+5.4%) from 2023
Liabilities
Down$52,749
Down $139,331 (-73%) from 2023
Net Assets
Up$121,059,417
Up $6,329,079 (+5.5%) from 2023
Revenue
Up$8,910,190
Up $1,516,257 (+21%) from 2023
Expenses
Up$8,504,642
Up $726,907 (+9.3%) from 2023
Net Income
Up$405,548
Up $789,350 (+206%) from 2023
Most recent year
2024 • Form 990Detailed filing. Detailed filing data is available for this year.
The indianapolis symphony orchestra foundation, inc. (the "iso foundation") was formed in september 1990 for the purpose of educating the public and providing financial and other support to the indiana symphony society, inc. (the "society"), an indiana not-for-profit corporation that operates the indianapolis symphony orchestra. It is the general practice of the society to transfer contributions raised, other than annual fund contributions, to the iso foundation unless a donor specifically requires the contribution to be maintained by the society. All fundraising expenses are recorded and reported in the society's accounts.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Investments Other Securities | $84,545,448 | $86,776,073 | ▲ $2,230,625 |
| Investments in Publicly Traded Securities | $21,140,732 | $23,279,717 | ▲ $2,138,985 |
| Savings and Temporary Cash Investments | $1,992,812 | $6,178,024 | ▲ $4,185,212 |
| Land, Buildings, and Equipment, Net | $3,556,802 | $3,586,107 | ▲ $29,305 |
| Pledges and Grants Receivable | $2,595,686 | $100,262 | ▼ $2,495,424 |
| Cash and Non-Interest-Bearing Accounts | $8,509 | $95,686 | ▲ $87,177 |
| Prepaid Expenses and Deferred Charges | $18,750 | $0 | ▼ $18,750 |
| Receivable From Disqualified Prsn | $0 | $0 | → $0 |
| Receivables From Officers Etc | $0 | $0 | → $0 |
| Investments Program Related | $0 | - | - |
| Loans From Officers Directors | $0 | $0 | → $0 |
| Total Assets | $114,922,418 | $121,112,166 | ▲ $6,189,748 |
| Other Assets Total | $1,063,679 | $1,096,297 | ▲ $32,618 |
| Liabilities | |||
| Accounts Payable and Accrued Expenses | $192,080 | $52,749 | ▼ $139,331 |
| Other Liabilities | $0 | $0 | → $0 |
| Total Liabilities | $192,080 | $52,749 | ▼ $139,331 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $68,844,308 | $71,027,264 | ▲ $2,182,956 |
| Net Assets With Donor Restrictions | $45,886,030 | $50,032,153 | ▲ $4,146,123 |
| Total Net Assets Fund Balance | $114,730,338 | $121,059,417 | ▲ $6,329,079 |
| Total Liabilities and Net Assets / Fund Balance | $114,922,418 | $121,112,166 | ▲ $6,189,748 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Buildings | $2,181,465 | $7,901,876 | $10,083,341 |
| Other Land Buildings | $622,038 | - | $622,038 |
| Land | $600,000 | - | $600,000 |
| Leasehold Improvements | $182,604 | $36,521 | $219,125 |
| Other Securities | $86,776,073 | - | - |
| Period | Beginning | Contrib. | Gain/Loss | Other Uses | End |
|---|---|---|---|---|---|
| 2023 | $40,995,548 | $2,750,000 | ▲ $1,956,162 | $669,203 | $45,032,507 |
| 2022 | $41,171,033 | $1,000 | ▲ $430,861 | $607,346 | $40,995,548 |
| 2021 | $41,370,959 | $1,550 | ▲ $422,930 | $624,406 | $41,171,033 |
| 2020 | $37,571,663 | $55,998 | ▲ $3,743,298 | - | $41,370,959 |
| 2019 | $36,728,701 | $501,000 | ▲ $848,185 | $506,223 | $37,571,663 |
| Name | Title |
|---|---|
| John R Thornburgh | Chair |
| Mark Mutz | Director |
| Martha Lamkin | Director |
| Scott Davis | Director |
| Susan Ridlen | Director |
| Tom Grein | Director |
| Robert D Ramsey | Secretary |
| Jill Margetts | Treasurer |
| Contractor | Services | Location | Compensation |
|---|---|---|---|
| Cambridge Associates LLC | Investment Advisor | 125 HIGH STREET, Boston, MA 02110 | $281,250 |
| Line Item | Amount |
|---|---|
| Grants and Similar Amounts Paid | $6,653,048 |
| Other Expenses | $1,851,594 |
| Professional Fundraising Fees | $0 |
| Salaries, Compensation, and Employee Benefits | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Grants to Domestic Orgs | $6,653,048 | - | - | $6,653,048 |
| Fees for Service Investment Mgmnt Fees | - | $1,600,631 | - | $1,600,631 |
| Depreciation Depletion | $81,233 | - | - | $81,233 |
| Fees for Services Accounting | - | $69,140 | - | $69,140 |
| Fees for Services Other | $0 | $50,000 | $0 | $50,000 |
| All Other Expenses | $0 | $43,368 | $0 | $43,368 |
| Fees for Services Legal | - | $7,222 | - | $7,222 |
| Total Functional Expenses | $6,734,281 | $1,770,361 | $0 | $8,504,642 |
| Line Item | Amount |
|---|---|
| Total Expenses per Form 990 | $8,504,642 |
| Expenses per Audited Statements | $6,904,011 |
| Total Expenses per Audited Statements | $6,904,011 |
| Expenses Not Reported on Financial Statements | $1,600,631 |
| Expenses Not Reported on Form 990 | $0 |
| Other Expense Adjustments | $0 |
| Recipient | Location | Category | Purpose | Amount |
|---|---|---|---|---|
| Indiana Symphony Society Inc | Indianapolis, IN | 501(c)(3) | To fund operating expenses, rent, education and artistic endeavors. | $6,653,048 |
| Region | Activity | Services | Offices | Employees | Spending |
|---|---|---|---|---|---|
| Central America and the Caribbean | Investments | None | 0 | 0 | $52,862,889 |
| Europe (Including Iceland and Greenland) | Investments | None | 0 | 0 | $8,307,322 |
| 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 |
“The foundation does not compensate its top management official. Therefore, this question is not applicable and should be answered no per the instructions.”
“The foundation does not compensate any other officers. Therefore, this question is not applicable and should be answered no per the instructions.”
“Beginning in 1995, the organization entered into a service agreement with the indiana symphony society, inc. (the society) whereby the society provides the organization certain management services, including endowment fundraising, administrative services, providing office space, and preparing financial records and reports.”
“The foundation has its form 990 prepared by an outside accounting firm. It is then REVIEWED BY THE AUDIT COMMITTEE BEFORE DISTRIBUTION TO THE BOARD. A COPY OF THE 990 IS DISTRIBUTED TO ALL BOARD MEMBERS PRIOR TO FILING.”
“The foundation has adopted the conflict of interest policy of the indiana symphony society, inc. (the society). The conflict of interest policy is distributed annually to all board members and management with spending authority. Each person is required to sign and return a form indicating they have read the policy and have disclosed any conflicts of interest. The audit committee of the society has ultimate responsibility for determining whether a conflict of interest exists and whether or not to proceed with disciplinary action, including dismissal.”
“The foundation makes its governing documents, conflict of interest policy, and financial statements available to the public upon verbal or written request.”
“Change in npv - charitable gift annuity - -233;”
“The foundation has adopted the whistleblower and document retention and destruction policies of the indiana symphony society, inc. (the society).”
“To support the indiana symphony society, inc.”
“The ISO Foundation is exempt from federal and state income taxes on related income under Section 501(c)(3) of the United States Internal Revenue Code and similar state law. Accounting principles generally accepted in the United States of America require management to evaluate tax positions taken by the ISO Foundation and recognize a tax liability if the ISO Foundation has taken an uncertain position that more likely than not would not be sustained upon examination by various federal and state taxing authorities. Management has analyzed the tax positions taken by the ISO Foundation, and has concluded that as of August 31, 2024 and 2023, there are no uncertain positions taken or expected to be taken that would require recognition of a liability or disclosure in the accompanying financial statements. The ISO Foundation is subject to routine audits by taxing jurisdictions; however, there are currently no audits for any tax periods in progress. As such, the ISO Foundation is generally exempt from income taxes. However, the ISO Foundation is required to file Federal Form 990 - Return of Organization Exempt from Income Tax and a corresponding state return, both of which are informational returns only. The ISO Foundation has filed its federal and state income tax returns for periods through August 31, 2023. These income tax returns are generally open to examination by the relevant taxing authorities for a period of three years from the later of the date the return was filed or its due date (including approved extensions).”
“Change in NPV-Charitable Gift Annuity - -233”
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 | 192080 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 52749 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | THE INDIANAPOLIS SYMPHONY ORCHESTRA FOUNDATION, INC. (THE "ISO FOUNDATION") WAS FORMED IN SEPTEMBER 1990 FOR THE PURPOSE OF EDUCATING THE PUBLIC AND PROVIDING FINANCIAL AND OTHER SUPPORT TO THE INDIANA SYMPHONY SOCIETY, INC. (THE "SOCIETY"), AN INDIANA NOT-FOR-PROFIT CORPORATION THAT OPERATES THE INDIANAPOLIS SYMPHONY ORCHESTRA. IT IS THE GENERAL PRACTICE OF THE SOCIETY TO TRANSFER CONTRIBUTIONS RAISED, OTHER THAN ANNUAL FUND CONTRIBUTIONS, TO THE ISO FOUNDATION UNLESS A DONOR SPECIFICALLY REQUIRES THE CONTRIBUTION TO BE MAINTAINED BY THE SOCIETY. ALL FUNDRAISING EXPENSES ARE RECORDED AND REPORTED IN THE SOCIETY'S ACCOUNTS. |
| IRS990/AllOtherContributionsAmt | 0 | 2918147 |
| IRS990/AllOtherExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 43368 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 0 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 43368 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | true |
| IRS990/AuditCommitteeInd | 0 | true |
| IRS990/BackupWthldComplianceInd | 0 | true |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | Jennifer Janik |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 3172621100 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 32 EAST WASHINGTON STREET NO 600 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | INDIANAPOLIS |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | IN |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 462042919 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 8509 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 95686 |
| 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/ConflictOfInterestPolicyInd | 0 | true |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 281250 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 125 HIGH STREET |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | BOSTON |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 02110 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | CAMBRIDGE ASSOCIATES LLC |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | INVESTMENT ADVISOR |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 2918147 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 6653048 |
| IRS990/CYInvestmentIncomeAmt | 0 | 4709318 |
| IRS990/CYOtherExpensesAmt | 0 | 1851594 |
| IRS990/CYOtherRevenueAmt | 0 | 32725 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 1250000 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 405548 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/CYTotalExpensesAmt | 0 | 8504642 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 8910190 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DelegationOfMgmtDutiesInd | 0 | true |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 81233 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 81233 |
| IRS990/Desc | 0 | Provide financial support to the Indiana Symphony Society, Inc. to assist with educational, artistic, operating, and facility purposes as well as community service to the greater Indianapolis area. |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | true |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 45886030 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 50032153 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | true |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 6734281 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 69140 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 69140 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 7222 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 7222 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 0 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 50000 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 0 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 50000 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 1600631 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 1600631 |
| IRS990/ForeignActivitiesInd | 0 | true |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form8282PropertyDisposedOfInd | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 2.0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 2.0 |
| 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/IndividualTrusteeOrDirectorInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 7 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | JILL MARGETTS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | JOHN R THORNBURGH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | ROBERT D RAMSEY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | MARK MUTZ |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | MARTHA LAMKIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | SCOTT DAVIS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | SUSAN RIDLEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | TOM GREIN |
| 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/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/TitleTxt | 0 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | DIRECTOR |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/Form990TFiledInd | 0 | true |
| IRS990/FormationYr | 0 | 1990 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | true |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GainOrLossGrp/OtherAmt | 0 | 396 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 2697317 |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 8 |
| IRS990/GrantAmt | 0 | 6653048 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 6653048 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 6653048 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | true |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossAmountSalesAssetsGrp/OtherAmt | 0 | 787 |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 10078130 |
| IRS990/GrossReceiptsAmt | 0 | 16291394 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | true |
| IRS990/IndependentAuditFinclStmtInd | 0 | true |
| IRS990/IndependentVotingMemberCnt | 0 | 8 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIInd | 0 | X |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 1084421 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 2011605 |
| IRS990/InvestmentIncomeGrp/UnrelatedBusinessRevenueAmt | 0 | 927184 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/InvestmentsOtherSecuritiesGrp/BOYAmt | 0 | 84545448 |
| IRS990/InvestmentsOtherSecuritiesGrp/EOYAmt | 0 | 86776073 |
| IRS990/InvestmentsProgramRelatedGrp/BOYAmt | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 21140732 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 23279717 |
| IRS990/IRPDocumentCnt | 0 | 2 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 7938397 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 3556802 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 3586107 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 11524504 |
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| IRS990/MissionDesc | 0 | THE INDIANAPOLIS SYMPHONY ORCHESTRA FOUNDATION, INC. (THE "ISO FOUNDATION") WAS FORMED IN SEPTEMBER 1990 FOR THE PURPOSE OF EDUCATING THE PUBLIC AND PROVIDING FINANCIAL AND OTHER SUPPORT TO THE INDIANA SYMPHONY SOCIETY, INC. (THE "SOCIETY"), AN INDIANA NOT-FOR-PROFIT CORPORATION THAT OPERATES THE INDIANAPOLIS SYMPHONY ORCHESTRA. IT IS THE GENERAL PRACTICE OF THE SOCIETY TO TRANSFER CONTRIBUTIONS RAISED, OTHER THAN ANNUAL FUND CONTRIBUTIONS, TO THE ISO FOUNDATION UNLESS A DONOR SPECIFICALLY REQUIRES THE CONTRIBUTION TO BE MAINTAINED BY THE SOCIETY. ALL FUNDRAISING EXPENSES ARE RECORDED AND REPORTED IN THE SOCIETY'S ACCOUNTS. |
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| IRS990ScheduleA/Form990ScheduleAPartVIGrp/ExplanationTxt | 0 | The Society has a significant voice in the Foundation's investment policies and in directing the use of the Foundation's income and assets. First, according to the Amended and Restated Articles of Incorporation of the Foundation, the incumbent Chairperson of the Society shall be an ex-officio, non-voting Director of the Foundation. Second, the Amended and Restated Code of Bylaws of the Foundation provide that the members of the Board of Directors of the Foundation are to be chosen with the intent that (a) the Officers and Directors of the Foundation will maintain a close and continuous working relationship with the Officers and Directors of the Society; and (b) the Officers and Directors of the Foundation shall consider recommendations of the Officers or Directors of the Society regarding the investment policies of the Foundation, the timing of distributions from the Foundation to the Society, the manner in which such distributions are made, and in otherwise directing the use of the income and assets of the Foundation. |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/ExplanationTxt | 1 | THE INDIANA SYMPHONY SOCIETY, INC. (SOCIETY) IS THE SUPPORTED ORGANIZATION FOR THE FOUNDATION. THE MAIN ACTIVITY OF THE FOUNDATION IS TO MANAGE THE INVESTMENTS, INCLUDING REAL ESTATE, THAT DERIVED FROM CONTRIBUTIONS THAT WERE LONG TERM IN NATURE. THIS ACTIVITY FURTHERS THE EXEMPT PURPOSE OF THE SOCIETY BY ALLOWING THE FOUNDATION TO PROVIDE FUNDING TO THE SOCIETY TO COVER EXPENSES RELATED TO ITS EXEMPT PURPOSE. THE FOUNDATION IS RESPONSIVE TO THE SOCIETY AS IT PROVIDES AN OPERATING GRANT EACH YEAR AND IT IS WILLING TO HEAR REQUESTS FROM THE SOCIETY FOR SPECIAL GRANTS WHEN THE NEEDS ARISE THAT ARE IN ADDITION TO THE YEARLY OPERATING GRANT. THE FOUNDATION WILL DECIDE WHETHER TO APPROVE OR DENY THE REQUEST BY THE SOCIETY ON A CASE BY CASE BASIS. THE FOUNDATION HAS DETERMINED THAT MANAGING THE INVESTMENTS , INCLUDING REAL ESTATE IS SUBSTANTIALLY ALL OF ITS ACTIVITIES BECAUSE IT MAKES UP 99% OF ITS ASSETS. |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/ExplanationTxt | 2 | IF THE FOUNDATION DID NOT EXIST, THE ACTIVITIES DESCRIBED FOR LINE 2A, WOULD STILL HAVE TO BE DONE AS IT WOULD NOT BE PRUDENT TO LEAVE OVER $100 MILLION OF INVESTMENTS AND $3 MILLION OF REAL ESTATE UNMANAGED. THEREFORE, IF THE FOUNDATION DID NOT ENGAGE IN THIS ACTIVITY, THE SOCIETY WOULD NEED TO MANAGE THEM ITSELF. |
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| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 0 | TO SUPPORT THE INDIANA SYMPHONY SOCIETY, INC. |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 1 | The ISO Foundation is exempt from federal and state income taxes on related income under Section 501(c)(3) of the United States Internal Revenue Code and similar state law. Accounting principles generally accepted in the United States of America require management to evaluate tax positions taken by the ISO Foundation and recognize a tax liability if the ISO Foundation has taken an uncertain position that more likely than not would not be sustained upon examination by various federal and state taxing authorities. Management has analyzed the tax positions taken by the ISO Foundation, and has concluded that as of August 31, 2024 and 2023, there are no uncertain positions taken or expected to be taken that would require recognition of a liability or disclosure in the accompanying financial statements. The ISO Foundation is subject to routine audits by taxing jurisdictions; however, there are currently no audits for any tax periods in progress. As such, the ISO Foundation is generally exempt from income taxes. However, the ISO Foundation is required to file Federal Form 990 - Return of Organization Exempt from Income Tax and a corresponding state return, both of which are informational returns only. The ISO Foundation has filed its federal and state income tax returns for periods through August 31, 2023. These income tax returns are generally open to examination by the relevant taxing authorities for a period of three years from the later of the date the return was filed or its due date (including approved extensions). |
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