<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.26.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>244</ContextCount>
  <ElementCount>307</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>72</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>5</UnitCount>
  <MyReports>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>995100 - Document - Cover</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/dei/role/document/Cover</Role>
      <ShortName>Cover</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>995300 - Document - Audit Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/dei/role/document/AuditInformation</Role>
      <ShortName>Audit Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>995301 - Statement - Consolidated Statement of Assets and Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ConsolidatedBalanceSheet</Role>
      <ShortName>Consolidated Statement of Assets and Liabilities</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>995302 - Statement - Consolidated Statement of Assets and Liabilities (Parentheticals)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ConsolidatedBalanceSheet_Parentheticals</Role>
      <ShortName>Consolidated Statement of Assets and Liabilities (Parentheticals)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>995303 - Statement - Consolidated Statement of Operations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ConsolidatedIncomeStatement</Role>
      <ShortName>Consolidated Statement of Operations</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>995304 - Statement - Consolidated Statement of Operations (Parentheticals)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ConsolidatedIncomeStatement_Parentheticals</Role>
      <ShortName>Consolidated Statement of Operations (Parentheticals)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>995305 - Statement - Consolidated Statements of Changes in Net Assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ShareholdersEquityType2or3</Role>
      <ShortName>Consolidated Statements of Changes in Net Assets</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>995306 - Statement - Consolidated Statement of Cash Flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ConsolidatedCashFlow</Role>
      <ShortName>Consolidated Statement of Cash Flows</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>995307 - Statement - Consolidated Schedule of Investments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ConsolidatedScheduleofInvestmentsTable</Role>
      <ShortName>Consolidated Schedule of Investments</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>995309 - Disclosure - Organization</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/Organization</Role>
      <ShortName>Organization</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>995310 - Disclosure - Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/SignificantAccountingPolicies</Role>
      <ShortName>Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>995311 - Disclosure - Related Party Transactions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/RelatedPartyTransactions</Role>
      <ShortName>Related Party Transactions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>995312 - Disclosure - Shareholders' Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ShareholdersEquity</Role>
      <ShortName>Shareholders' Equity</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>995313 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/CommitmentsandContingencies</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>995314 - Disclosure - Financial Highlights</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/FinancialHighlights</Role>
      <ShortName>Financial Highlights</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>995315 - Disclosure - Subsequent Events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/SubsequentEvents</Role>
      <ShortName>Subsequent Events</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>995316 - Disclosure - Investments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/Investments</Role>
      <ShortName>Investments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>995317 - Disclosure - Fair Value Measurement and Disclosures</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/FairValueMeasurementandDisclosures</Role>
      <ShortName>Fair Value Measurement and Disclosures</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>995318 - Disclosure - Debt</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/Debt</Role>
      <ShortName>Debt</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>995319 - Disclosure - Income Taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/IncomeTaxes</Role>
      <ShortName>Income Taxes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>995445 - Disclosure - Insider Trading Arrangements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements</Role>
      <ShortName>Insider Trading Arrangements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>995550 - Disclosure - Cybersecurity Risk Management and Strategy Disclosure</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/cyd/role/CybersecurityRiskManagementAndStrategyDisclosure</Role>
      <ShortName>Cybersecurity Risk Management and Strategy Disclosure</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>996000 - Disclosure - Accounting Policies, by Policy (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/AccountingPoliciesByPolicy</Role>
      <ShortName>Accounting Policies, by Policy (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://www.iofc.com/role/SignificantAccountingPolicies</ParentRole>
      <Position>23</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>996001 - Disclosure - Related Party Transactions (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/RelatedPartyTransactionsTables</Role>
      <ShortName>Related Party Transactions (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.iofc.com/role/RelatedPartyTransactions</ParentRole>
      <Position>24</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>996002 - Disclosure - Shareholders' Equity (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ShareholdersEquityTables</Role>
      <ShortName>Shareholders' Equity (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.iofc.com/role/ShareholdersEquity</ParentRole>
      <Position>25</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>996003 - Disclosure - Financial Highlights (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/FinancialHighlightsTables</Role>
      <ShortName>Financial Highlights (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.iofc.com/role/FinancialHighlights</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>996004 - Disclosure - Subsequent Events (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/SubsequentEventsTables</Role>
      <ShortName>Subsequent Events (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.iofc.com/role/SubsequentEvents</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>996005 - Disclosure - Investments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/InvestmentsTables</Role>
      <ShortName>Investments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.iofc.com/role/Investments</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>996006 - Disclosure - Fair Value Measurement and Disclosures (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/FairValueMeasurementandDisclosuresTables</Role>
      <ShortName>Fair Value Measurement and Disclosures (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.iofc.com/role/FairValueMeasurementandDisclosures</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>996007 - Disclosure - Income Taxes (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/IncomeTaxesTables</Role>
      <ShortName>Income Taxes (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.iofc.com/role/IncomeTaxes</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>996008 - Disclosure - Organization (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/OrganizationDetails</Role>
      <ShortName>Organization (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.iofc.com/role/Organization</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>996009 - Disclosure - Significant Accounting Policies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/SignificantAccountingPoliciesDetails</Role>
      <ShortName>Significant Accounting Policies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>32</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>996010 - Disclosure - Related Party Transactions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/RelatedPartyTransactionsDetails</Role>
      <ShortName>Related Party Transactions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.iofc.com/role/RelatedPartyTransactionsTables</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>996011 - Disclosure - Related Party Transactions - Schedule of Series I Expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ScheduleofSeriesIExpensesTable</Role>
      <ShortName>Related Party Transactions - Schedule of Series I Expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>34</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>996012 - Disclosure - Shareholders' Equity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ShareholdersEquityDetails</Role>
      <ShortName>Shareholders' Equity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.iofc.com/role/ShareholdersEquityTables</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>996013 - Disclosure - Shareholders' Equity - Schedule of Summary of the Shares Issued and Redeemed During the Period (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ScheduleofSummaryoftheSharesIssuedandRedeemedDuringthePeriodTable</Role>
      <ShortName>Shareholders' Equity - Schedule of Summary of the Shares Issued and Redeemed During the Period (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>36</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>996014 - Disclosure - Financial Highlights - Schedule of Financial Highlights (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ScheduleofFinancialHighlightsTable</Role>
      <ShortName>Financial Highlights - Schedule of Financial Highlights (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>37</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>996015 - Disclosure - Subsequent Events (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/SubsequentEventsDetails</Role>
      <ShortName>Subsequent Events (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.iofc.com/role/SubsequentEventsTables</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>996016 - Disclosure - Subsequent Events - Schedule of Cash Distribution (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ScheduleofCashDistributionTable</Role>
      <ShortName>Subsequent Events - Schedule of Cash Distribution (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>39</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>996017 - Disclosure - Investments - Schedule of Summarized Operating Data (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ScheduleofSummarizedOperatingDataTable</Role>
      <ShortName>Investments - Schedule of Summarized Operating Data (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>40</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>996018 - Disclosure - Investments - Schedule of Summarized Balance Sheet Data (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ScheduleofSummarizedBalanceSheetDataTable</Role>
      <ShortName>Investments - Schedule of Summarized Balance Sheet Data (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>41</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>996019 - Disclosure - Fair Value Measurement and Disclosures (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/FairValueMeasurementandDisclosuresDetails</Role>
      <ShortName>Fair Value Measurement and Disclosures (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.iofc.com/role/FairValueMeasurementandDisclosuresTables</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>996020 - Disclosure - Fair Value Measurement and Disclosures - Schedule of Investments and Cash and Cash Equivalents in Fair Value Hierarchy (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ScheduleofInvestmentsandCashandCashEquivalentsinFairValueHierarchyTable</Role>
      <ShortName>Fair Value Measurement and Disclosures - Schedule of Investments and Cash and Cash Equivalents in Fair Value Hierarchy (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>43</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>996021 - Disclosure - Fair Value Measurement and Disclosures - Schedule of Reconciliation of Investments Level III Inputs (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ScheduleofReconciliationofInvestmentsLevelIIIInputsTable</Role>
      <ShortName>Fair Value Measurement and Disclosures - Schedule of Reconciliation of Investments Level III Inputs (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>996022 - Disclosure - Fair Value Measurement and Disclosures - Schedule of Quantitative Measures Used to Determine the Fair Values (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ScheduleofQuantitativeMeasuresUsedtoDeterminetheFairValuesTable</Role>
      <ShortName>Fair Value Measurement and Disclosures - Schedule of Quantitative Measures Used to Determine the Fair Values (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>996023 - Disclosure - Debt (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/DebtDetails</Role>
      <ShortName>Debt (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.iofc.com/role/Debt</ParentRole>
      <Position>46</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>996024 - Disclosure - Related Party Transactions - Schedule of Manager Agreed to Reimburse Expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ScheduleofManagerAgreedtoReimburseExpensesTable</Role>
      <ShortName>Related Party Transactions - Schedule of Manager Agreed to Reimburse Expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>47</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>996025 - Disclosure - Shareholders' Equity - Schedule of Shares Issued and Redeemed (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ScheduleofSharesIssuedandRedeemedTable</Role>
      <ShortName>Shareholders' Equity - Schedule of Shares Issued and Redeemed (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>48</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>996026 - Disclosure - Income Taxes - Schedule of Income (Loss) Before Tax Expense (Benefit) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ScheduleofIncomeLossBeforeTaxExpenseBenefitTable</Role>
      <ShortName>Income Taxes - Schedule of Income (Loss) Before Tax Expense (Benefit) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>49</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>996027 - Disclosure - Income Taxes - Schedule of Series Ii Incurs Income Tax Expense (Benefit) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ScheduleofSeriesIiIncursIncomeTaxExpenseBenefitTable</Role>
      <ShortName>Income Taxes - Schedule of Series Ii Incurs Income Tax Expense (Benefit) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>50</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>996028 - Disclosure - Income Taxes - Schedule of Effective Income Tax Rate (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ScheduleofEffectiveIncomeTaxRateTable</Role>
      <ShortName>Income Taxes - Schedule of Effective Income Tax Rate (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>51</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>996029 - Disclosure - Income Taxes - Schedule of Components of Series II???s Deferred Tax Assets and Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ScheduleofComponentsofSeriesIIsDeferredTaxAssetsandLiabilitiesTable</Role>
      <ShortName>Income Taxes - Schedule of Components of Series II???s Deferred Tax Assets and Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>52</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>996030 - Disclosure - Financial Highlights - Schedule of Financial Highlights (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ScheduleofFinancialHighlightsTable0</Role>
      <ShortName>Financial Highlights - Schedule of Financial Highlights (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>53</Position>
    </Report>
    <Report instance="ea0283537-10k_isqopen.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>996031 - Disclosure - Subsequent Events - Schedule of Cash Distribution (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.iofc.com/role/ScheduleofCashDistributionTable0</Role>
      <ShortName>Subsequent Events - Schedule of Cash Distribution (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>ck0002059924-20251231.xsd</File>
    <File>ck0002059924-20251231_cal.xml</File>
    <File>ck0002059924-20251231_def.xml</File>
    <File>ck0002059924-20251231_lab.xml</File>
    <File>ck0002059924-20251231_pre.xml</File>
    <File doctype="10-K" isDefinitelyFs="true" isUsgaap="true" original="ea0283537-10k_isqopen.htm">ea0283537-10k_isqopen.htm</File>
  </InputFiles>
  <SupplementalFiles>
    <File>ea028353701_img1.jpg</File>
    <File>ea028353701_img2.jpg</File>
    <File>ea028353701_img3.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy items="2">http://fasb.org/srt/2025</BaseTaxonomy>
    <BaseTaxonomy items="973">http://fasb.org/us-gaap/2025</BaseTaxonomy>
    <BaseTaxonomy items="11">http://xbrl.sec.gov/cyd/2025</BaseTaxonomy>
    <BaseTaxonomy items="50">http://xbrl.sec.gov/dei/2025</BaseTaxonomy>
    <BaseTaxonomy items="4">http://xbrl.sec.gov/ecd/2025</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
