Liabilities / Assets
3rd percentile
Higher debt load relative to assets than 3% of similar nonprofits.
Ics Support Organization Inc
EIN 27-3167963 • 501(c)3 • Franklin, WI
Profile
Ics support organization was created to support and benefit the indian community school, inc. (ics). Ics support organization holds, invests, and manages assets that serve to support and fund the continuous operation of ics.
Siviq Scores
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
0.00x
Liabilities / Revenue
4th percentile
Higher debt load relative to revenue than 4% of similar nonprofits.
Net Margin
94th percentile
Higher net margin than 94% of similar nonprofits.
Top Officer Pay
4th percentile
Higher top officer pay than 4% of similar nonprofits.
Top officer pay equals 0.2% of source-year revenue.
Asset Growth
15th percentile
Faster asset growth than 15% of similar nonprofits.
Revenue Growth
51st percentile
Faster revenue growth than 51% of similar nonprofits.
Balance Sheet
Assets
Up$704,921,752
Up $34,427,056 (+5.1%) from 2023
Liabilities
Up$799,203
Up $264,540 (+49%) from 2023
Net Assets
Up$704,122,549
Up $34,162,516 (+5.1%) from 2023
Revenue
Down$34,919,701
Down $23,373,759 (-40%) from 2023
Expenses
Down$25,678,315
Down $1,882,655 (-6.8%) from 2023
Net Income
Down$9,241,386
Down $21,491,104 (-70%) from 2023
Trend Graphs
Filings
Most recent year
2024 • Form 990Detailed filing. Detailed filing data is available for this year.
- Assets
- $704,921,752
- Liabilities
- $799,203
- Net assets
- $704,122,549
- Revenue
- $34,919,701
- Expenses
- $25,678,315
- Net income
- $9,241,386
Latest Filing Detail
Jump To
Filing Snapshot
- Filing Period
- Jul 1, 2023 to Jun 30, 2024
- Signed
- Apr 30, 2025
- Return Version
- 2023v6.0
- Gross Receipts
- $82,832,287
Mission and Program Overview
Mission
The ics support organization was created to support and benefit the indian community school of milwaukee, inc. (ics). The ics support organization holds, invests, and manages assets that serve to support and fund the continuous operation of ics.
To provide support to the indian community school, inc.
Balance Sheet Detail
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Investments in Publicly Traded Securities | $326,707,211 | $356,237,782 | ▲ $29,530,571 |
| Investments Other Securities | $324,356,363 | $325,368,197 | ▲ $1,011,834 |
| Savings and Temporary Cash Investments | $18,805,155 | $21,957,063 | ▲ $3,151,908 |
| Accounts Receivable | $454,157 | $1,154,818 | ▲ $700,661 |
| Cash and Non-Interest-Bearing Accounts | $145,096 | $135,668 | ▼ $9,428 |
| Prepaid Expenses and Deferred Charges | $26,714 | $68,224 | ▲ $41,510 |
| Total Assets | $670,494,696 | $704,921,752 | ▲ $34,427,056 |
| Liabilities | |||
| Accounts Payable and Accrued Expenses | $508,075 | $771,060 | ▲ $262,985 |
| Other Liabilities | $26,588 | $28,143 | ▲ $1,555 |
| Total Liabilities | $534,663 | $799,203 | ▲ $264,540 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $669,960,033 | $704,122,549 | ▲ $34,162,516 |
| Total Net Assets Fund Balance | $669,960,033 | $704,122,549 | ▲ $34,162,516 |
| Total Liabilities and Net Assets / Fund Balance | $670,494,696 | $704,921,752 | ▲ $34,427,056 |
Asset Categories
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Other Securities | $21,846,805 | - | - |
Compensation and Service Providers
Employees
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Diane Amour - Non-voting | Ex-officio Board Member | - | - | $64,204 | $64,204 |
| Jane Stromwall | Chair (through 08/24) | PT | $36,000 | - | $36,000 |
| Joseph S Quinn | Treasurer | PT | $36,000 | - | $36,000 |
| David Jw Klauser | Vice Chair | PT | $30,000 | - | $30,000 |
| Thomas Buestrin | Board Member (through 02/24) | - | $30,000 | - | $30,000 |
| Gail Hanson | Secretary | PT | $25,000 | - | $25,000 |
Highest Paid Contractors
| Contractor | Services | Location | Compensation |
|---|---|---|---|
| Jp Morgan Asset Management | Investment Management | 116 INVERNESS DRIVE EAST, Englewood, CO 80112 | $1,020,407 |
| Clarion Lion Properties Fund LP | Investment Management | 230 PARK AVENUE, New York, NY 10069 | $310,426 |
| Marquette Associates INC | Investment Management | 180 N LASALLE STREET SUITE 3500, Chicago, IL 60601 | $201,000 |
| Robert W Baird & Co INC | Investment Management | 777 EAST WI AVE, Milwaukee, WI 53202 | $171,626 |
Revenue and Support
Revenue Composition
- Contributions and Grants
- $0
- Program Service Revenue
- $0
- Investment Income
- $34,919,701
- Other Revenue
- $0
- Change in Net Assets
- $9,241,386
Audited Revenue Reconciliation
- Revenue per Audited Statements
- $32,491,723
- Revenue Not Reported on Financial Statements
- $2,427,978
- Revenue Not Reported on Form 990
- $24,921,130
- Total Revenue per Audited Statements
- $57,412,853
- Total Revenue per Form 990
- $34,919,701
Expenses and Functional Allocation
Major Expense Lines
| Line Item | Amount |
|---|---|
| Grants and Similar Amounts Paid | $22,900,000 |
| Other Expenses | $2,619,125 |
| Salaries, Compensation, and Employee Benefits | $159,190 |
| Professional Fundraising Fees | $0 |
| Total Fundraising Expense | $0 |
Functional Expense Allocation
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Grants to Domestic Orgs | $22,900,000 | - | - | $22,900,000 |
| Fees for Service Investment Mgmnt Fees | - | $2,427,978 | - | $2,427,978 |
| Current Officers, Directors, Trustees, and Key Employees | $39,798 | $119,392 | - | $159,190 |
| Fees for Services Accounting | $10,710 | $32,131 | - | $42,841 |
| Fees for Services Legal | $7,206 | $21,618 | - | $28,824 |
| Insurance | $3,593 | $10,779 | - | $14,372 |
| Fees for Services Other | $1,519 | $4,556 | - | $6,075 |
| Information Technology | $1,146 | $3,439 | - | $4,585 |
| Travel | - | $1,801 | - | $1,801 |
| Occupancy | $170 | $511 | - | $681 |
| Other Expenses | $173 | $-6,548 | - | $-6,548 |
| Total Functional Expenses | $22,988,690 | $2,689,625 | $0 | $25,678,315 |
Audited Expense Reconciliation
| Line Item | Amount |
|---|---|
| Total Expenses per Form 990 | $25,678,315 |
| Expenses per Audited Statements | $23,250,337 |
| Total Expenses per Audited Statements | $23,250,337 |
| Expenses Not Reported on Financial Statements | $2,427,978 |
| Expenses Not Reported on Form 990 | $0 |
International Activity
Grant and Assistance Recipients
| Recipient | Location | Category | Purpose | Amount |
|---|---|---|---|---|
| Indian Community School Inc | Franklin, WI | 501(c )(3) | Fund All Operations of the School | $22,900,000 |
International Summary
- Offices
- 0
- Employees
- 0
- Spending
- $17,460,207
International Compliance
- Activity in boycott countries
- No
- Foreign corporation ownership
- Yes
- Foreign partnership interest
- Yes
- Interest in foreign trust
- No
- Passive foreign investment company interest
- Yes
- Transfers to foreign corporations
- Yes
International Activities
| Region | Activity | Services | Offices | Employees | Spending |
|---|---|---|---|---|---|
| Central America and the Carribean | Investments | - | 0 | 0 | $17,257,639 |
| Europe | Investments | - | 0 | 0 | $202,568 |
Fundraising, Events, and Gaming
- Fundraising activities
- No
- Gaming activities
- No
- Professional fundraiser used
- No
Fundraising and Gaming Totals
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
Political and Lobbying Activity
- Political campaign activity
- No
- Lobbying activity
- No
- Subject to proxy tax
- No
Debt and Bond Financing
Other Reported Liabilities
| Liability | Amount |
|---|---|
| Inter-company Payable | $28,143 |
Governance and Compliance
Governance Checklist
- Compiled or reviewed by an accountant
- No
- Annual disclosure for covered persons
- Yes
- Audit committee
- Yes
- Backup withholding compliance
- Yes
- Business relationship with 35% controlled entity
- No
- Business relationship with family members
- No
- Business relationship with organization members
- No
- Material changes to governing documents
- Yes
- Compensation from other sources disclosed
- No
- CEO compensation reviewed
- No
- Other officer compensation reviewed
- No
- Conflict-of-interest policy
- Yes
- Audited financial statements prepared
- Yes
- Key decisions subject to board approval
- Yes
- Management duties delegated
- No
Governance Explanations
Form 990, Part VI, Section A, Line 4
“Ics support organization inc. Restated the articles of incorporation and bylaws of the organization to correspond with changing from a type iii supporting organization to a type i supporting organization in october of 2024. While this change did not occur duing the fiscal year ended 6/30/24, the organization is disclosing the change upon filing the form 990 for that tax year to the irs for future reference.”
Form 990, Part VI, Section A, Line 7A
“Indian community school, inc. Shall appoint one voting and one non-voting (ex officio) member to serve on ics support organization, inc.'s board of directors.”
Form 990, Part VI, Section A, Line 7B
“Certain actions of the board, including amending the articles of incorporation and/or bylaws, dissolving or merging ics support organization, inc. Require a two-thirds majority of the voting directors, including the consent of the voting board director appointed by indian community school, inc.”
Form 990, Part VI, Section B, Line 11B
“Ics support organization, inc.'s form 990 (including required schedules) is provided to each board member in draft form, with a final version distributed to each board member prior to filing.”
Form 990, Part VI, Section B, Line 12C
“Ics support organization, inc.'s conflict of interest policy requires each individual to review the policy and complete a disclosure statement on an annual basis. In addition, each individual is required throughout the year to make disclosures before the board considers a matter in which the individual may have conflict of interest. Following an individual's disclosure of an actual or potential conflict of interest, the board of directors shall determine whether a conflict of interest exists and, if so, shall determine the proper course of action which generally shall include abstention from any future vote on the matter by the individual with the conflict. Additionally, the individual will provide any information requested by the board of directors with respect to the conflict of interest, may be asked to leave the room during any future discussions and votes of the matter and generally shall abstain from any vote. Discovery of potential and actual conflicts after a transaction has occurred will be reported to the board of directors to determine the proper manner in which to address any potential or actual conflict.”
Form 990, Part VI, Section B, Line 15
“Ics support organization, inc. Board of directors, through an independent consultant, conducted an analysis of market data to determine board of director compensation. Ics support organization, inc. Engaged a qualified compensation consultant to analyze market compensation data for similar organizations and provide a report on the reasonableness of ics support organization, inc. Compensation of board members. The resulting report was reviewed by outside counsel and reviewed/approved by the board at a duly called board meeting.”
Form 990, Part VI, Section C, Line 19
“Ics support organization, inc. Makes its form 990, 990-t, and form 1023 available to the public by retaining a copy of each at its place of business. The financial statements, governing documents and conflict of interest policy are all available upon request and at management's discretion.”
Filing and Contact Details
Filer
- Filer Name
- Ics Support Organization Inc
- EIN
- 27-3167963
- Phone
- 4145256100
- Address
- 10405 W SAINT MARTINS ROAD, FRANKLIN, WI 53132
Signing Officer
- Name
- Joseph S Quinn
- Title
- Treasurer & Vice Chair
- Phone
- 4145256100
- Signed
- 2025-04-30
- Discuss with paid preparer
- Yes
Organization Details
- Principal Officer
- David Jw Klauser
- Formed
- 2010
- Legal Domicile
- Wi
- Voting Board Members
- 4
- Independent Board Members
- 4
- Employees
- 0
- Volunteers
- 0
Preparer
- Firm
- Baker Tilly Advisory Group Lp
- Address
- 790 N WATER ST SUITE 2000, MILWAUKEE, WI 53202
- Preparer
- Shelby Netz CPA
- Phone
- 4147775500
Supplemental Narrative
Additional Explanations
FORM 990, PART XII, LINE 2C:
“Ics support organization, inc.'s financial activities are reported in the consolidated audited financial statements of its supported organization, indian community school, inc. (ics). Ics has a committee that assumes the responsibility for oversight of the audit and the selection of an independent accountant.”
Financial Statement Notes
PART X, LINE 2:
“Ics support organization, inc. Follows accounting standards codification ("asc") 740, income taxes, which clarifies the accounting for uncertainty in tax positions taken or expected to be taken in a tax return, including issues relating to financial statement recognition and measurement. This guidance provides that the tax effects from an uncertain tax position can only be recognized in the financial statements if the position is more-likely-than-not to be sustained if the position were to be challenged by a taxing authority. The assessment of the tax position is based solely on the technical merits of the position, without regard to the likelihood that the tax position may be challenged. Ics support organization, inc. Is exempt from federal income tax under internal revenue code ("irc") section 501(c)(3), though it is subject to tax on income unrelated to its exempt purpose, unless that income is otherwise excluded by the irc. Ics support organization, inc. Has processes in place to ensure the maintenance of its tax-exempt status, to identify and report unrelated income, to determine its filing and tax obligations in jurisdictions for which it has nexus, and to identify and evaluate other matters that may be considered tax positions. The tax years ending june 30, 2021, 2022, 2023 and 2024 are still open to audit for federal and state purposes. Ics support organization, inc. Has determined that there are no material uncertain tax positions that require recognition or disclosure in the consolidated financial statements. Form 990, schedule d, parts xi & xii: ics support organization, inc.'s financial statements are consolidated with those of indian community school, inc. The parts xi and xii reconciliation on schedule d agrees to ics support organization, inc.'s financial information contained in the supplemental information to the consolidated audited financial statements.”
Raw XML AppendixShowing 400 of 600 raw XML fields
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 | 508075 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 771060 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 454157 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 1154818 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | TO PROVIDE SUPPORT TO THE INDIAN COMMUNITY SCHOOL, INC. |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | BRIAN LEIBL |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 4145256172 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 10405 W SAINT MARTINS ROAD |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | FRANKLIN |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | WI |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 53132 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 145096 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 135668 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 1 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 4 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 119392 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 39798 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 159190 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 0 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 1 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 1020407 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 1 | 310426 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 2 | 201000 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 3 | 171626 |
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| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 1 | 230 PARK AVENUE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 2 | 180 N LASALLE STREET SUITE 3500 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 3 | 777 EAST WI AVE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | ENGLEWOOD |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 1 | NEW YORK |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 2 | CHICAGO |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 3 | MILWAUKEE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | CO |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 1 | NY |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 2 | IL |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 3 | WI |
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| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 1 | 10069 |
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| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 2 | MARQUETTE ASSOCIATES INC |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 3 | ROBERT W BAIRD & CO INC |
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| IRS990/ContractorCompensationGrp/ServicesDesc | 1 | INVESTMENT MANAGEMENT |
| IRS990/ContractorCompensationGrp/ServicesDesc | 2 | INVESTMENT MANAGEMENT |
| IRS990/ContractorCompensationGrp/ServicesDesc | 3 | INVESTMENT MANAGEMENT |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 0 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 22900000 |
| IRS990/CYInvestmentIncomeAmt | 0 | 34919701 |
| IRS990/CYOtherExpensesAmt | 0 | 2619125 |
| IRS990/CYOtherRevenueAmt | 0 | 0 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 9241386 |
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| IRS990/CYTotalExpensesAmt | 0 | 25678315 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
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| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/Desc | 0 | ICS SUPPORT ORGANIZATION, INC.'S SOLE PROGRAM SERVICE ACTIVITY IS TO HOLD, INVEST, AND MANAGE ASSETS THAT SERVE TO SUPPORT AND FUND THE CONTINUOUS OPERATION OF THE INDIAN COMMUNITY SCHOOL, INC. (ICS).ALL FUNDS GRANTED TO ICS ARE USED TO FURTHER ICS' MISSION. ICS CULTIVATES AN ENDURING CULTURAL IDENTITY AND CRITICAL THINKING BY WEAVING INDIGENOUS TEACHINGS WITH A DISTINGUISHED LEARNING ENVIRONMENT. ICS PROVIDES ELEMENTARY AND MIDDLE SCHOOL CLASSES (K4-8TH) AND PROVIDES VARIOUS OTHER CULTURAL AND EDUCATIONAL ACTIVITIES TO AMERICAN INDIAN CHILDREN AND FAMILIES. IN 2023, ICS ENROLLMENT WAS APPROXIMATELY 360 STUDENTS, K4-8TH. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 0 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 1 |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 22988690 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
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| IRS990/FeesForServicesAccountingGrp/ProgramServicesAmt | 0 | 10710 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 42841 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 21618 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 7206 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 28824 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 4556 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 1519 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 6075 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 2427978 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 2427978 |
| IRS990/ForeignActivitiesInd | 0 | 1 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 32.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 12.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 8.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 12.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 6.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 2.00 |
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| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
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| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 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/PersonNm | 0 | JANE STROMWALL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | DAVID JW KLAUSER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | JOSEPH S QUINN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | GAIL HANSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | THOMAS BUESTRIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | DIANE AMOUR - NON-VOTING |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 30000 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 36000 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 25000 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 30000 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 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 | 64204 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | CHAIR (THROUGH 08/24) |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | VICE CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | BOARD MEMBER (THROUGH 02/24) |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | EX-OFFICIO BOARD MEMBER |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/Form990TFiledInd | 0 | 1 |
| IRS990/FormationYr | 0 | 2010 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/ConsolidatedBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 14419051 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 4 |
| IRS990/GrantAmt | 0 | 22900000 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 22900000 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 22900000 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 1 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 62331637 |
| IRS990/GrossReceiptsAmt | 0 | 82832287 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 0 |
| IRS990/IndependentVotingMemberCnt | 0 | 4 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIIInd | 0 | X |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 3439 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 1146 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 4585 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 10779 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 3593 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 14372 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 20320147 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 20500650 |
| IRS990/InvestmentIncomeGrp/UnrelatedBusinessRevenueAmt | 0 | 180503 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsOtherSecuritiesGrp/BOYAmt | 0 | 324356363 |
| IRS990/InvestmentsOtherSecuritiesGrp/EOYAmt | 0 | 325368197 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 326707211 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 356237782 |
| IRS990/IRPDocumentCnt | 0 | 9 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LegalDomicileStateCd | 0 | WI |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 47912586 |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 0 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | ICS SUPPORT ORGANIZATION WAS CREATED TO SUPPORT AND BENEFIT THE INDIAN COMMUNITY SCHOOL, INC. (ICS). ICS SUPPORT ORGANIZATION HOLDS, INVESTS, AND MANAGES ASSETS THAT SERVE TO SUPPORT AND FUND THE CONTINUOUS OPERATION OF ICS. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 669960033 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 704122549 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | 14419051 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 14419051 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 30817 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 24921130 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 669960033 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 704122549 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 511 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 170 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 681 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherExpensesGrp/Desc | 0 | ADMINISTRATIVE FEE |
| IRS990/OtherExpensesGrp/Desc | 1 | EQUIPMENT |
| IRS990/OtherExpensesGrp/Desc | 2 | MISCELLANEOUS EXPENSE |
| IRS990/OtherExpensesGrp/Desc | 3 | UNRELATED BUS. INC. TAX |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 73125 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 520 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 2 | 323 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 3 | -6548 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 24375 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 173 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 97500 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 693 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 323 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | -6548 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 26588 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 28143 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 26714 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 68224 |
| IRS990/PrincipalOfficerNm | 0 | DAVID JW KLAUSER |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 0 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 24240000 |
| IRS990/PYInvestmentIncomeAmt | 0 | 58293460 |
| IRS990/PYOtherExpensesAmt | 0 | 3158970 |
| IRS990/PYOtherRevenueAmt | 0 | 0 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 30732490 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 162000 |
| IRS990/PYTotalExpensesAmt | 0 | 27560970 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 58293460 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 9241386 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 1 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 1 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 0 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 1 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 18805155 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 21957063 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/AdjustedGrossIncomeGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/AdjustedGrossIncomeGrp/PriorYearAmt | 0 | 12074335 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/DepreciationDepletionGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/DepreciationDepletionGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/NetSTCapitalGainAdjNetIncmGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/NetSTCapitalGainAdjNetIncmGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/OtherExpensesGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/OtherExpensesGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/OtherGrossIncomeGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/OtherGrossIncomeGrp/PriorYearAmt | 0 | 12074335 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/ProductionIncomeGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/ProductionIncomeGrp/PriorYearAmt | 0 | 2348109 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/RecoveriesPYDistributionsGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/RecoveriesPYDistributionsGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/TotalAdjustedNetIncomeGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/TotalAdjustedNetIncomeGrp/PriorYearAmt | 0 | 9726226 |
| IRS990ScheduleA/DistributableAmountGrp/CYAdjNetIncomeDistributableAmt | 0 | 9726226 |
| IRS990ScheduleA/DistributableAmountGrp/CYDistributableAsAdjustedAmt | 0 | 22867513 |
| IRS990ScheduleA/DistributableAmountGrp/CYGreaterAdjustedMinimumAmt | 0 | 22867513 |
| IRS990ScheduleA/DistributableAmountGrp/CYIncomeTaxImposedPYAmt | 0 | 0 |
| IRS990ScheduleA/DistributableAmountGrp/CYPct85AdjustedNetIncomeAmt | 0 | 8267292 |
| IRS990ScheduleA/DistributableAmountGrp/CYTotalMinAstDistributableAmt | 0 | 22867513 |
| IRS990ScheduleA/DistributionAllocationsGrp/CarryoverPYNotAppliedAmt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/CYDistriAppDistributableAmt | 0 | 19975459 |
| IRS990ScheduleA/DistributionAllocationsGrp/CYDistribAppUnderdistriPYAmt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/CYDistributableAsAdjustedAmt | 0 | 22867513 |
| IRS990ScheduleA/DistributionAllocationsGrp/CyovAppliedUnderdistrCPYAmt | 0 | 2892054 |
| IRS990ScheduleA/DistributionAllocationsGrp/CyovAppliedUnderdistriPYAmt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/CYTotalAnnualDistributionsAmt | 0 | 23250337 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessDistributionAmt | 0 | 3274878 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessDistributionCyovAmt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessDistributionCyovYr1Amt | 0 | 2892054 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessDistributionCyovYr2Amt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessDistributionCyovYr3Amt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessDistributionCyovYr4Amt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessDistributionCyovYr5Amt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessDistriCyovToNextYrAmt | 0 | 3274878 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessFromYear1Amt | 0 | 3274878 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessFromYear2Amt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessFromYear3Amt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessFromYear4Amt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessFromYear5Amt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/RemainingUnderdistriCYAmt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/RemainingUnderdistriPYAmt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/TotalExcessDistributionCyovAmt | 0 | 2892054 |
| IRS990ScheduleA/DistributionAllocationsGrp/UnderdistributionsAmt | 0 | 0 |
| IRS990ScheduleA/DistributionsGrp/CYAdministrativeExpensePaidAmt | 0 | 350337 |
| IRS990ScheduleA/DistributionsGrp/CYDistriAttentiveSuprtOrgAmt | 0 | 22900000 |
| IRS990ScheduleA/DistributionsGrp/CYDistributableAsAdjustedAmt | 0 | 22867513 |
| IRS990ScheduleA/DistributionsGrp/CYDistributionYrRt | 0 | 100.000000000000 |
| IRS990ScheduleA/DistributionsGrp/CYOtherDistributionsAmt | 0 | 0 |
| IRS990ScheduleA/DistributionsGrp/CYPaidAccomplishExemptPrpsAmt | 0 | 22900000 |
| IRS990ScheduleA/DistributionsGrp/CYPdInExcessIncomeActivityAmt | 0 | 0 |
| IRS990ScheduleA/DistributionsGrp/CYTotalAnnualDistributionsAmt | 0 | 23250337 |
| IRS990ScheduleA/DistributionsGrp/ExemptUseAssetsAcquisPaidAmt | 0 | 0 |
| IRS990ScheduleA/DistributionsGrp/QualifiedSetAsideAmt | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/Contribution35ControlledInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ContributionControllerInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ContributionFamilyInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ControlledDisqualifiedPrsnInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/DisqualifiedPrsnControllIntInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/DisqualifiedPrsnOwnrIntInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ExcessBusinessHoldingsInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ExcessBusinessHoldingsRulesInd | 0 | 1 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ListedByNameGoverningDocInd | 0 | 1 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/LoanDisqualifiedPersonInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/OrganizationChangeSuprtOrgInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/PaymentSubstantialContribtrInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SupportedOrgNotOrganizedUSInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SupportedOrgSectionC456Ind | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SupportNonSupportedOrgInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SuprtOrgNoIRSDeterminationInd | 0 | 0 |
| IRS990ScheduleA/Form990SchAType3SprtOrgAllGrp/OfficersCloseRelationshipInd | 0 | 1 |
| IRS990ScheduleA/Form990SchAType3SprtOrgAllGrp/SupportedOrgVoiceInvestmentInd | 0 | 1 |
| IRS990ScheduleA/Form990SchAType3SprtOrgAllGrp/TimelyProvidedDocumentsInd | 0 | 1 |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/ExplanationTxt | 0 | THROUGH 9/30/24, INDIAN COMMUNITY SCHOOL, INC. (ICS) HAD THE RIGHT TO APPOINT BOTH A VOTING MEMBER AND A NON-VOTING, EX-OFFICIO MEMBER TO THE ICS SUPPORT ORGANIZATION, INC. BOARD OF DIRECTORS. THE NON-VOTING, EX-OFFICIO BOARD MEMBER, WHO SITS ON ICS'S BOARD OF DIRECTORS AS A VOTING MEMBER, HAD THE RESPONSIBILITY OF ENSURING THAT ICS SUPPORT ORGANIZATION, INC. IS APPRISED OF ICS' ACTIVITIES AND FINANCIAL NEEDS. AS OF 10/1/24, THE ICS SUPPORT ORGANIZATION BECAME A TYPE I SUPPORTING ORGANIZATION, AND ICS NOW HAS THE AUTHORITY TO APPOINT EACH OF THE DIRECTORS. ALL INVESTMENT POLICY DECISIONS AND SIGNIFICANT DECISIONS RELATING TO THE USE OF ICS SUPPORT ORGANIZATION, INC.'S INCOME AND ASSETS ARE MADE BY THE ICS SUPPORT ORGANIZATION, INC. BOARD AND ARE DOCUMENTED IN BOARD MINUTES. THE ICS-APPOINTED VOTING BOARD MEMBER AND THE ICS-APPOINTED, NON-VOTING, EX-OFFICIO BOARD MEMBER PARTICIPATE IN THE BOARD MEETINGS AND ADVISE ON THESE DECISIONS AND HOW THEY IMPACT ICS. FINALLY, ICS SUPPORT ORGANIZATION, INC. AND ICS CONDUCT A JOINT BOARD MEETING ONCE A YEAR. |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/ExplanationTxt | 1 | ICS SUPPORT ORGANIZATION, INC. MET BOTH THE ATTENTIVENESS AND RESPONSIVENESS TEST FOR THE YEAR ENDING JUNE 30, 2024. ATTENTIVENESS TEST: IN 2023, INDIAN COMMUNITY SCHOOL, INC. RECEIVED IN EXCESS OF 90% OF ITS TOTAL SUPPORT FROM ICS SUPPORT ORGANIZATION, INC. RESPONSIVENESS TEST: ICS SUPPORT ORGANIZATION, INC. MET BOTH OF THE TESTS SET FORTH IN FORM 990, SCHEDULE A, PART IV, SECTION D, LINES 2 AND 3. |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/ExplanationTxt | 2 | ICS SUPPORT ORGANIZATION HAS CONVERTED FROM A TYPE III NON-FUNCTIONALLY INTEGRATED SUPPORTING ORGANIZATION TO A TYPE 1 SUPPORTING ORGANIZATION AS OF 10/1/24. ICS SUPPORT ORGANIZATION WILL REFLECT THIS CHANGE ON SCHEDULE A, PART I, LINE 12A WITH ITS RETURN FOR THE PERIOD ENDING JUNE 30, 2025. |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/FormAndLineReferenceDesc | 0 | PART IV, SECTION D, LINE 3: |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/FormAndLineReferenceDesc | 1 | SCHEDULE A, PART V, SECTION D, LINE 8: |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/FormAndLineReferenceDesc | 2 | SCHEDULE A, PART I, LINE 12D: |
| IRS990ScheduleA/IRSWrittenDeterminationInd | 0 | X |
| IRS990ScheduleA/MinimumAssetAmountGrp/AcquisitionIndebtednessGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/AcquisitionIndebtednessGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/AdjustedFMVLessIndebtednessGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/AdjustedFMVLessIndebtednessGrp/PriorYearAmt | 0 | 663307127 |
| IRS990ScheduleA/MinimumAssetAmountGrp/AverageMonthlyCashBalancesGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/AverageMonthlyCashBalancesGrp/PriorYearAmt | 0 | 188897 |
| IRS990ScheduleA/MinimumAssetAmountGrp/AverageMonthlyFMVOfSecGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/AverageMonthlyFMVOfSecGrp/PriorYearAmt | 0 | 662664073 |
| IRS990ScheduleA/MinimumAssetAmountGrp/CashDeemedCharitableGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/CashDeemedCharitableGrp/PriorYearAmt | 0 | 9949607 |
| IRS990ScheduleA/MinimumAssetAmountGrp/DiscountClaimedAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/FMVOtherNonExemptUseAssetGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/FMVOtherNonExemptUseAssetGrp/PriorYearAmt | 0 | 454157 |
| IRS990ScheduleA/MinimumAssetAmountGrp/NetVlNonExemptUseAssetsGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/NetVlNonExemptUseAssetsGrp/PriorYearAmt | 0 | 653357520 |
| IRS990ScheduleA/MinimumAssetAmountGrp/PctOfNetVlNonExemptUseAstGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/PctOfNetVlNonExemptUseAstGrp/PriorYearAmt | 0 | 22867513 |
| IRS990ScheduleA/MinimumAssetAmountGrp/RecoveriesPYDistriMinAssetGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/RecoveriesPYDistriMinAssetGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/TotalFMVOfNonExemptUseAssetGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/TotalFMVOfNonExemptUseAssetGrp/PriorYearAmt | 0 | 663307127 |
| IRS990ScheduleA/MinimumAssetAmountGrp/TotalMinimumAssetGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/TotalMinimumAssetGrp/PriorYearAmt | 0 | 22867513 |
| IRS990ScheduleA/OtherSupportSumAmt | 0 | 0 |
| IRS990ScheduleA/SupportedOrganizationsCnt | 0 | 1 |
| IRS990ScheduleA/SupportedOrganizationsTotalCnt | 0 | 1 |
| IRS990ScheduleA/SupportedOrgInformationGrp/EIN | 0 | 391154960 |
| IRS990ScheduleA/SupportedOrgInformationGrp/GoverningDocumentListedInd | 0 | 1 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OrganizationTypeCd | 0 | 2 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OtherSupportAmt | 0 | 0 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportAmt | 0 | 22900000 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportedOrganizationName/BusinessNameLine1Txt | 0 | INDIAN COMMUNITY SCHOOL INC |
| IRS990ScheduleA/SupportingOrganization509a3Ind | 0 | X |
| IRS990ScheduleA/SupportingOrgType3NonFuncInd | 0 | X |
| IRS990ScheduleA/SupportSumAmt | 0 | 22900000 |
| IRS990/ScheduleBRequiredInd | 0 | 0 |
| IRS990ScheduleD/ExpensesNotReportedAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesNotRptFinclStmtAmt | 0 | 2427978 |
| IRS990ScheduleD/ExpensesSubtotalAmt | 0 | 23250337 |
| IRS990ScheduleD/FootnoteTextInd | 0 | X |
| IRS990ScheduleD/InvestmentExpensesNotIncld2Amt | 0 | 2427978 |
| IRS990ScheduleD/InvestmentExpensesNotIncldAmt | 0 | 2427978 |
| IRS990ScheduleD/NetUnrealizedGainsInvstAmt | 0 | 24921130 |
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