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        <ExplanationTxt>The intended use of the endowment funds: The endowments fund research, scholarships, patient care and programs and services administered by St. Luke's Health.</ExplanationTxt>
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        <ExplanationTxt>Footnote Disclosure-Uncertain Tax Positions Under ASC 740 (Source: Consolidated Financial Statements-St. Luke's Health System Fiscal Year 2023) Income Taxes - The Health System is a not-for-profit corporation and is recognized as tax-exempt pursuant to Section 501(c)(3) of the Internal Revenue Code of 1986, as amended. The Health System has activities that are considered unrelated business taxable income (UBTI), which are subject to income tax. The Health System also has two taxable subsidiaries, St. Luke's Health Partners, and St. Luke's Health Plan whose operations are included in the consolidated financial statements and as such we have provided for income taxes on this activity under the Accounting Standards Codification (ASC) 740. For the Health System's taxable subsidiary and activities considered UBTI, income taxes are accounted for under the asset and liability method, which requires the recognition of Deferred Tax Assets (DTAs) and Deferred Tax Liabilities (DTLs) for the expected future tax consequences of events that have been included in the consolidated financial statements. Under this method, the Health System determines DTAs and DTLs based on the differences between the financial statement and tax bases of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect of a change in tax rates on DTAs and DTLs is recognized in results of operations in the period that includes the enactment date of the rate change. The Health System recognizes DTAs to the extent that these assets are more likely than not to be realized. In making such a determination, the Health System considers all available positive and negative evidence, including future reversals of existing taxable temporary differences, projected future taxable income, tax-planning strategies, and results of recent operations. If the Health System determines that DTAs are realizable in the future in excess of their net recorded amount, the Health System would make an adjustment to the DTA valuation allowance, which would reduce the provision for income taxes. The Health System records uncertain tax positions in accordance with ASC 740 on the basis of a two-step process in which (1) the Health System determines whether it is more likely than not that the tax positions will be sustained on the basis of the technical merits of the position and (2) for those tax positions that meet the more-likely-than-not recognition threshold, the Health System recognizes the largest amount of tax benefit that is more than 50 percent likely to be realized upon ultimate settlement with the related tax authority. Management is not aware of any uncertain tax positions that should be recorded.</ExplanationTxt>
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        <PersonNm>Chris Roth</PersonNm>
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        <PersonNm>Jeffrey Cilek</PersonNm>
        <TitleTxt>Executive Director (End 8/2023)</TitleTxt>
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        <PersonNm>Margaret Dougherty</PersonNm>
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        <PersonNm>Dawn Soto</PersonNm>
        <TitleTxt>Executive Director</TitleTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 3</FormAndLineReferenceDesc>
        <ExplanationTxt>Compensation for the organization's employed Officers and Executive Director is determined by St. Luke's Health System, Ltd. (System), sole member of St. Luke's Health Foundation, Ltd. (SLHF). The System board approves the compensation amount per the recommendation of its compensation committee. In determining compensation, the System board utilizes the following: Compensation Committee Independent compensation consultant Compensation survey or study Approval by the board or compensation committee The compensation set for Jeffrey Cilek, Executive Director of the St. Luke's Health Foundation, is established per guidelines established by St. Luke's Health System, Ltd. In establishing compensation guidelines for CEOs and executives serving within its subsidiaries, St. Luke's Health System, Ltd. utilizes any of the following methods: Compensation committee Independent consultant Approval by the board or compensation committee</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 4b</FormAndLineReferenceDesc>
        <ExplanationTxt>During CY2022, the following individuals participated in a supplemental non-qualified executive retirement plan governed by 457(f): Chris Roth received $122,129 of taxable benefits for service in a supplemental retirement plan. Jeffrey Cilek received $61,009 of taxable benefits for service in a supplemental retirement plan.</ExplanationTxt>
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    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part V, Line 1&amp;2</FormAndLineReferenceDesc>
        <ExplanationTxt>Accounts payable and payroll process are consolidated at the supporting organization level (St. Luke's Health System, Ltd). Therefore, corresponding reporting for 1099's and W-2's occurs at that level.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>St. Luke's Health System, Ltd. is the sole member of St. Luke's Health Foundation, Ltd. (Foundation).</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>The Executive Director of St. Luke's Health Foundation, Ltd. (Corporation) is appointed by the President and CEO of St. Luke's Health System, Ltd. (Member). St. Luke's Health System, Ltd. is the sole member of the Corporation.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7b</FormAndLineReferenceDesc>
        <ExplanationTxt>The following actions by St. Luke's Health Foundation, Ltd. (Foundation) must be approved by its sole member, St. Luke's Health System, Ltd.: (1) Amendment or restatement of the Articles of Incorporation or the Bylaws of this Foundation. (2) Purchase, sale, lease, disposition, hypothecation, exchange, gift, pledge or encumbrance of any interest in real or personal property, provided, however, that in accordance with prudent business practices and guidelines as necessary to conduct its regular business activities, Foundation may take action for such matters approved from time-to-time by the Member. (3) Appointment and removal of the directors of this Foundation or increasing or decreasing the number of directors to serve on the Board of Directors of this Foundation. (4) Enter into any loan agreements for the purpose of borrowing money. For purposes hereof, the term "borrowing" shall include any commitment for the payment of money pursuant to any contract. (5) Any change in the formal or informal expressions of philosophy or purpose of this Foundation. (6) Merger, consolidation, reorganization or dissolution of the Foundation. (7) Sale, lease, mortgage, pledge or other disposition of all or substantially all of the assets of the Foundation. (8) Creation of a subsidiary of the Foundation or its participation in any business entity, including, without limitation, any corporation, unincorporated association, partnership, joint venture, consortium or cooperative. (9) Expend funds in excess of its approved annual aggregate operating and capital budgets. (10) Appointment of the independent auditor or corporate counsel that is different from the auditor or counsel of the member. (11) Any transaction of the Foundation in which a director or officer of the Foundation has a material financial interest. (12) Open accounts with banks, trust companies, or other depositories for handling of financial transactions related to the Foundation.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>The Form 990 (Form) is reviewed by an independent public accounting firm based on audited financial statements of the St. Luke's Health System and with the assistance of the organization's finance and accounting staff. A complete copy of the Form 990 is made available to the Board of Directors prior to filing.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>The organization annually reviews the conflict of interest policy with each board member and also with new board members. Persons covered under the policy include officers, directors, senior executives, non-director members of Board committees, and others as identified by a senior executive. At all levels the board is responsible for assessing, reviewing, and resolving any conflicts of interest that have been disclosed by a covered person, or a conflict of interest disclosed by a covered person with respect to a covered person other than himself/herself. Where a conflict exists, the affected parties must recuse themselves from participating in any discussion and/or vote related to the conflict.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15</FormAndLineReferenceDesc>
        <ExplanationTxt>Executive compensation is set by St. Luke's Boards of Directors and is reviewed annually. Compensation levels are based on an independent analysis of comparable pay packages offered at similar institutions across the country, with the goal of placing executives in the 50th percentile in aggregate of those surveyed. These surveys are usually done annually.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>The organization's governing documents, conflict of interest policy, and financial statements are not available to the public. Form 990 is available for public inspection on our website, which contains financial information.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VII, Section A</FormAndLineReferenceDesc>
        <ExplanationTxt>Allocation of Compensation and Hours: The total hours worked and compensation reported for Jeff Cilek, Chris Roth, David Barton and Margaret Dougherty represents services rendered to the following organizations within the St. Luke's Health System: Chris Roth: St. Luke's Health System, Ltd. St. Luke's Regional Medical Center, Ltd. St. Luke's McCall, Ltd. St. Luke's Health Foundation, Ltd. St. Luke's Magic Valley Regional Medical Center, Ltd. St. Luke's Wood River Medical Center, Ltd. St. Luke's Nampa Medical Center, Ltd. Jeffery Cilek: St. Luke's Health Foundation, Ltd. St. Luke's Health System, Ltd. Margaret Dougherty: St. Luke's Health Foundation, Ltd. St. Luke's Health System, Ltd. St. Luke's Clinic Coordinated Care, Ltd. Also, it should be noted that the hours reported for the officers, key employees, and highest paid employees are based on a minimum 40 hour work week. However, due to the demands of their roles within the St. Luke's Health System, the hours worked by these individuals often exceed the minimum required 40 hours.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VII, Section A</FormAndLineReferenceDesc>
        <ExplanationTxt>In addition to his role as Executive Director of the St. Luke's Health Foundation, Jeffrey Cilek also served in the capacity as Vice-President of Government Relations for the St. Luke's Health System, and dedicated approximately 50% of his time to each role for the majority of the year. Starting in August 2023, Jeffrey's role changed to 100% Vice-President of Government Relations for St. Luke's Health System and no longer serves in his former Foundation role.</ExplanationTxt>
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    </IRS990ScheduleO>
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      <LoansOrGuaranteesFromOthOrgInd>0</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>0</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>0</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>0</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>0</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>0</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>0</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>1</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>0</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>1</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>1</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>0</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>0</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>0</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>0</TransferFromOtherOrgInd>
    </IRS990ScheduleR>
  </ReturnData>
</Return>