<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.26.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>3287</ContextCount>
  <ElementCount>379</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>340</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>8</UnitCount>
  <MyReports>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>0000001 - Document - Cover</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/Cover</Role>
      <ShortName>Cover</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>0000002 - Statement - Consolidated Statements of Assets and Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/ConsolidatedStatementsofAssetsandLiabilities</Role>
      <ShortName>Consolidated Statements of Assets and Liabilities</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>0000003 - Statement - Consolidated Statements of Assets and Liabilities (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/ConsolidatedStatementsofAssetsandLiabilitiesParenthetical</Role>
      <ShortName>Consolidated Statements of Assets and Liabilities (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>0000004 - Statement - Consolidated Statements of Operations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/ConsolidatedStatementsofOperations</Role>
      <ShortName>Consolidated Statements of Operations</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>0000005 - Statement - Consolidated Statements of Changes in Net Assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/ConsolidatedStatementsofChangesinNetAssets</Role>
      <ShortName>Consolidated Statements of Changes in Net Assets</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>0000006 - Statement - Consolidated Statements of Cash Flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/ConsolidatedStatementsofCashFlows</Role>
      <ShortName>Consolidated Statements of Cash Flows</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>0000007 - Statement - Consolidated Statements of Cash Flows (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/ConsolidatedStatementsofCashFlowsParenthetical</Role>
      <ShortName>Consolidated Statements of Cash Flows (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>0000008 - Statement - Consolidated Schedule of Investments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/ConsolidatedScheduleofInvestments</Role>
      <ShortName>Consolidated Schedule of Investments</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>0000009 - Statement - Consolidated Schedule of Investments (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/ConsolidatedScheduleofInvestmentsParenthetical</Role>
      <ShortName>Consolidated Schedule of Investments (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>0000010 - Statement - Consolidated Schedule of Investments - Forward Contracts (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/ConsolidatedScheduleofInvestmentsForwardContractsParenthetical</Role>
      <ShortName>Consolidated Schedule of Investments - Forward Contracts (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>0000011 - Disclosure - Organization and Principal Business</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/OrganizationandPrincipalBusiness</Role>
      <ShortName>Organization and Principal Business</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>0000012 - Disclosure - Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/SignificantAccountingPolicies</Role>
      <ShortName>Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>0000013 - Disclosure - Agreements and Related Party Transactions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/AgreementsandRelatedPartyTransactions</Role>
      <ShortName>Agreements and Related Party Transactions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>0000014 - Disclosure - Investments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/Investments</Role>
      <ShortName>Investments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>0000015 - Disclosure - Debt</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/Debt</Role>
      <ShortName>Debt</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>0000016 - Disclosure - Fair Value of Financial Instruments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/FairValueofFinancialInstruments</Role>
      <ShortName>Fair Value of Financial Instruments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>0000017 - Disclosure - Derivative Instruments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/DerivativeInstruments</Role>
      <ShortName>Derivative Instruments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>0000018 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/CommitmentsandContingencies</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>0000019 - Disclosure - Net Assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/NetAssets</Role>
      <ShortName>Net Assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>0000020 - Disclosure - Earnings Per Share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/EarningsPerShare</Role>
      <ShortName>Earnings Per Share</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>0000021 - Disclosure - Income Taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/IncomeTaxes</Role>
      <ShortName>Income Taxes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>0000022 - Disclosure - Financial Highlights</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/FinancialHighlights</Role>
      <ShortName>Financial Highlights</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>0000023 - Disclosure - Subsequent Events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/SubsequentEvents</Role>
      <ShortName>Subsequent Events</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.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>24</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>995470 - Disclosure - N-2</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/cef/role/N2</Role>
      <ShortName>N-2</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>9955511 - Disclosure - Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/SignificantAccountingPoliciesPolicies</Role>
      <ShortName>Significant Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://owlrockcoreincomecorp.com/role/SignificantAccountingPolicies</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>9955512 - Disclosure - Significant Accounting Policies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/SignificantAccountingPoliciesTables</Role>
      <ShortName>Significant Accounting Policies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://owlrockcoreincomecorp.com/role/SignificantAccountingPolicies</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>9955513 - Disclosure - Investments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/InvestmentsTables</Role>
      <ShortName>Investments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://owlrockcoreincomecorp.com/role/Investments</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>9955514 - Disclosure - Debt (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/DebtTables</Role>
      <ShortName>Debt (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://owlrockcoreincomecorp.com/role/Debt</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>9955515 - Disclosure - Fair Value of Financial Instruments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/FairValueofFinancialInstrumentsTables</Role>
      <ShortName>Fair Value of Financial Instruments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://owlrockcoreincomecorp.com/role/FairValueofFinancialInstruments</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>9955516 - Disclosure - Derivative Instruments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/DerivativeInstrumentsTables</Role>
      <ShortName>Derivative Instruments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://owlrockcoreincomecorp.com/role/DerivativeInstruments</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>9955517 - Disclosure - Commitments and Contingencies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/CommitmentsandContingenciesTables</Role>
      <ShortName>Commitments and Contingencies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://owlrockcoreincomecorp.com/role/CommitmentsandContingencies</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>9955518 - Disclosure - Net Assets (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/NetAssetsTables</Role>
      <ShortName>Net Assets (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://owlrockcoreincomecorp.com/role/NetAssets</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>9955519 - Disclosure - Earnings Per Share (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/EarningsPerShareTables</Role>
      <ShortName>Earnings Per Share (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://owlrockcoreincomecorp.com/role/EarningsPerShare</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>9955520 - Disclosure - Financial Highlights (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/FinancialHighlightsTables</Role>
      <ShortName>Financial Highlights (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://owlrockcoreincomecorp.com/role/FinancialHighlights</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>9955521 - Disclosure - Organization and Principal Business (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/OrganizationandPrincipalBusinessDetails</Role>
      <ShortName>Organization and Principal Business (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://owlrockcoreincomecorp.com/role/OrganizationandPrincipalBusiness</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>9955522 - Disclosure - Significant Accounting Policies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/SignificantAccountingPoliciesDetails</Role>
      <ShortName>Significant Accounting Policies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://owlrockcoreincomecorp.com/role/SignificantAccountingPoliciesTables</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>9955523 - Disclosure - Agreements and Related Party Transactions - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/AgreementsandRelatedPartyTransactionsNarrativeDetails</Role>
      <ShortName>Agreements and Related Party Transactions - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>38</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>9955524 - Disclosure - Investments - Investments at Fair Value and Amortized Cost (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/InvestmentsInvestmentsatFairValueandAmortizedCostDetails</Role>
      <ShortName>Investments - Investments at Fair Value and Amortized Cost (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>39</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>9955525 - Disclosure - Investments - Composition of Investments Based on Fair Value (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/InvestmentsCompositionofInvestmentsBasedonFairValueDetails</Role>
      <ShortName>Investments - Composition of Investments Based on Fair Value (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>40</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>9955526 - Disclosure - Investments - ORCIC Senior Loan Fund (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/InvestmentsORCICSeniorLoanFundDetails</Role>
      <ShortName>Investments - ORCIC Senior Loan Fund (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>41</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>9955527 - Disclosure - Investments - Consolidated Financial Data (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/InvestmentsConsolidatedFinancialDataDetails</Role>
      <ShortName>Investments - Consolidated Financial Data (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>42</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>9955528 - Disclosure - Investments - Distributions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/InvestmentsDistributionsDetails</Role>
      <ShortName>Investments - Distributions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>43</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>9955529 - Disclosure - Investments - Blue Owl Credit Senior Loan Fund (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/InvestmentsBlueOwlCreditSeniorLoanFundDetails</Role>
      <ShortName>Investments - Blue Owl Credit Senior Loan Fund (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>9955530 - Disclosure - Investments - Capital Commitment and Economic Ownership (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/InvestmentsCapitalCommitmentandEconomicOwnershipDetails</Role>
      <ShortName>Investments - Capital Commitment and Economic Ownership (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>9955531 - Disclosure - Investments - Schedule of The Capital Commitment and Economic Ownership for Blue Owl Credit SLF LLC (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/InvestmentsScheduleofTheCapitalCommitmentandEconomicOwnershipforBlueOwlCreditSLFLLCDetails</Role>
      <ShortName>Investments - Schedule of The Capital Commitment and Economic Ownership for Blue Owl Credit SLF LLC (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>9955532 - Disclosure - Investments - Schedule of Financial Information for Blue Owl Credit SLF LLC (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/InvestmentsScheduleofFinancialInformationforBlueOwlCreditSLFLLCDetails</Role>
      <ShortName>Investments - Schedule of Financial Information for Blue Owl Credit SLF LLC (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>47</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>9955533 - Disclosure - Debt - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/DebtNarrativeDetails</Role>
      <ShortName>Debt - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>48</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>9955534 - Disclosure - Debt - Schedule of Outstanding Debt Obligations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/DebtScheduleofOutstandingDebtObligationsDetails</Role>
      <ShortName>Debt - Schedule of Outstanding Debt Obligations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>49</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>9955535 - Disclosure - Debt - Schedule of Components of Interest Expense (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/DebtScheduleofComponentsofInterestExpenseDetails</Role>
      <ShortName>Debt - Schedule of Components of Interest Expense (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>50</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>9955536 - Disclosure - Debt - Revolving Credit Facility (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/DebtRevolvingCreditFacilityDetails</Role>
      <ShortName>Debt - Revolving Credit Facility (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>51</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>9955537 - Disclosure - Debt - SPV Asset Facilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/DebtSPVAssetFacilitiesDetails</Role>
      <ShortName>Debt - SPV Asset Facilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>52</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>9955538 - Disclosure - Debt - CLO (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/DebtCLODetails</Role>
      <ShortName>Debt - CLO (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>53</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>9955539 - Disclosure - Debt - Unsecured Notes (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/DebtUnsecuredNotesDetails</Role>
      <ShortName>Debt - Unsecured Notes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>9955540 - Disclosure - Debt - Maturity of Debt Obligations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/DebtMaturityofDebtObligationsDetails</Role>
      <ShortName>Debt - Maturity of Debt Obligations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>55</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>9955541 - Disclosure - Fair Value of Financial Instruments - Schedule of Fair Value Hierarchy of Investments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/FairValueofFinancialInstrumentsScheduleofFairValueHierarchyofInvestmentsDetails</Role>
      <ShortName>Fair Value of Financial Instruments - Schedule of Fair Value Hierarchy of Investments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>56</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>9955542 - Disclosure - Fair Value of Financial Instruments - Schedule of Changes in the Fair Value of Investments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/FairValueofFinancialInstrumentsScheduleofChangesintheFairValueofInvestmentsDetails</Role>
      <ShortName>Fair Value of Financial Instruments - Schedule of Changes in the Fair Value of Investments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>57</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>9955543 - Disclosure - Fair Value of Financial Instruments - Schedule of Net Change in Unrealized Gains (Losses) on Investments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/FairValueofFinancialInstrumentsScheduleofNetChangeinUnrealizedGainsLossesonInvestmentsDetails</Role>
      <ShortName>Fair Value of Financial Instruments - Schedule of Net Change in Unrealized Gains (Losses) on Investments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>58</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>9955544 - Disclosure - Fair Value of Financial Instruments - Schedule of Quantitative Information About Significant Unobservable Inputs of Level 3 Investments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/FairValueofFinancialInstrumentsScheduleofQuantitativeInformationAboutSignificantUnobservableInputsofLevel3InvestmentsDetails</Role>
      <ShortName>Fair Value of Financial Instruments - Schedule of Quantitative Information About Significant Unobservable Inputs of Level 3 Investments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>59</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>9955545 - Disclosure - Fair Value of Financial Instruments - Schedule of Carrying and Fair Values of the Company???s Debt Obligations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/FairValueofFinancialInstrumentsScheduleofCarryingandFairValuesoftheCompanysDebtObligationsDetails</Role>
      <ShortName>Fair Value of Financial Instruments - Schedule of Carrying and Fair Values of the Company???s Debt Obligations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>60</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>9955546 - Disclosure - Derivative Instruments - Fair Value and Notional Value of the Derivative Assets and Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/DerivativeInstrumentsFairValueandNotionalValueoftheDerivativeAssetsandLiabilitiesDetails</Role>
      <ShortName>Derivative Instruments - Fair Value and Notional Value of the Derivative Assets and Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>61</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>9955547 - Disclosure - Derivative Instruments - Net Unrealized Gains and Losses on Effective Interest Rate Swaps and Hedged Items (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/DerivativeInstrumentsNetUnrealizedGainsandLossesonEffectiveInterestRateSwapsandHedgedItemsDetails</Role>
      <ShortName>Derivative Instruments - Net Unrealized Gains and Losses on Effective Interest Rate Swaps and Hedged Items (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>62</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>9955548 - Disclosure - Derivative Instruments - Derivative Instruments Not Designated (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/DerivativeInstrumentsDerivativeInstrumentsNotDesignatedDetails</Role>
      <ShortName>Derivative Instruments - Derivative Instruments Not Designated (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>9955549 - Disclosure - Commitment and Contingencies - Schedule of Committed Capital (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/CommitmentandContingenciesScheduleofCommittedCapitalDetails</Role>
      <ShortName>Commitment and Contingencies - Schedule of Committed Capital (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>64</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>9955550 - Disclosure - Commitments and Contingencies - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/CommitmentsandContingenciesNarrativeDetails</Role>
      <ShortName>Commitments and Contingencies - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>9955551 - Disclosure - Net Assets - Shares Authorized (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/NetAssetsSharesAuthorizedDetails</Role>
      <ShortName>Net Assets - Shares Authorized (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>66</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>9955552 - Disclosure - Net Assets - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/NetAssetsNarrativeDetails</Role>
      <ShortName>Net Assets - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>67</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>9955553 - Disclosure - Net Assets - Common Stock Transactions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/NetAssetsCommonStockTransactionsDetails</Role>
      <ShortName>Net Assets - Common Stock Transactions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>68</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>9955554 - Disclosure - Net Assets - Public Offering (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/NetAssetsPublicOfferingDetails</Role>
      <ShortName>Net Assets - Public Offering (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>69</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>9955555 - Disclosure - Net Assets - Cash Distributions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/NetAssetsCashDistributionsDetails</Role>
      <ShortName>Net Assets - Cash Distributions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>70</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>9955556 - Disclosure - Net Assets - Common Share Declared (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/NetAssetsCommonShareDeclaredDetails</Role>
      <ShortName>Net Assets - Common Share Declared (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>71</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>9955557 - Disclosure - Net Assets - Common Stock Purchases Pursuant to Repurchase Plan (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/NetAssetsCommonStockPurchasesPursuanttoRepurchasePlanDetails</Role>
      <ShortName>Net Assets - Common Stock Purchases Pursuant to Repurchase Plan (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>72</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>9955558 - Disclosure - Earnings Per Share (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/EarningsPerShareDetails</Role>
      <ShortName>Earnings Per Share (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://owlrockcoreincomecorp.com/role/EarningsPerShareTables</ParentRole>
      <Position>73</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>9955559 - Disclosure - Income Taxes (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/IncomeTaxesDetails</Role>
      <ShortName>Income Taxes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://owlrockcoreincomecorp.com/role/IncomeTaxes</ParentRole>
      <Position>74</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>9955560 - Disclosure - Financial Highlights (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/FinancialHighlightsDetails</Role>
      <ShortName>Financial Highlights (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://owlrockcoreincomecorp.com/role/FinancialHighlightsTables</ParentRole>
      <Position>75</Position>
    </Report>
    <Report instance="orcic-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>9955561 - Disclosure - Subsequent Events (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://owlrockcoreincomecorp.com/role/SubsequentEventsDetails</Role>
      <ShortName>Subsequent Events (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://owlrockcoreincomecorp.com/role/SubsequentEvents</ParentRole>
      <Position>76</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File doctype="10-Q" isDefinitelyFs="true" isUsgaap="true" original="orcic-20260331.htm">orcic-20260331.htm</File>
    <File>orcic-20260331.xsd</File>
    <File>orcic-20260331_cal.xml</File>
    <File>orcic-20260331_def.xml</File>
    <File>orcic-20260331_lab.xml</File>
    <File>orcic-20260331_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy items="4">http://fasb.org/srt/2025</BaseTaxonomy>
    <BaseTaxonomy items="8861">http://fasb.org/us-gaap/2025</BaseTaxonomy>
    <BaseTaxonomy items="95">http://xbrl.sec.gov/cef/2025</BaseTaxonomy>
    <BaseTaxonomy items="28">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>
