<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.26.3</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>941</ContextCount>
  <ElementCount>617</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>182</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>7</UnitCount>
  <MyReports>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>00000001 - Document - Cover</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/Cover</Role>
      <ShortName>Cover</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>00000002 - Statement - UNAUDITED INTERIM CONDENSED STATEMENTS OF FINANCIAL POSITION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/UnauditedInterimCondensedStatementsOfFinancialPosition</Role>
      <ShortName>UNAUDITED INTERIM CONDENSED STATEMENTS OF FINANCIAL POSITION</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>00000003 - Statement - UNAUDITED INTERIM CONDENSED STATEMENTS OF COMPREHENSIVE LOSS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/UnauditedInterimCondensedStatementsOfComprehensiveLoss</Role>
      <ShortName>UNAUDITED INTERIM CONDENSED STATEMENTS OF COMPREHENSIVE LOSS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>00000004 - Statement - UNAUDITED INTERIM CONDENSED STATEMENTS OF CHANGES IN EQUITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/UnauditedInterimCondensedStatementsOfChangesInEquity</Role>
      <ShortName>UNAUDITED INTERIM CONDENSED STATEMENTS OF CHANGES IN EQUITY</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>00000005 - Statement - UNAUDITED INTERIM CONDENSED STATEMENTS OF CASH FLOWS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/UnauditedInterimCondensedStatementsOfCashFlows</Role>
      <ShortName>UNAUDITED INTERIM CONDENSED STATEMENTS OF CASH FLOWS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>999006 - Disclosure - General Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/GeneralInformation</Role>
      <ShortName>General Information</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>999007 - Disclosure - Basis of Accounting</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/BasisOfAccounting</Role>
      <ShortName>Basis of Accounting</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>999008 - Disclosure - Material accounting policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/MaterialAccountingPolicies</Role>
      <ShortName>Material accounting policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>999009 - Disclosure - Share capital</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/ShareCapital</Role>
      <ShortName>Share capital</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>999010 - Disclosure - Operating Segments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/OperatingSegments</Role>
      <ShortName>Operating Segments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>999011 - Disclosure - Related Parties</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/RelatedParties</Role>
      <ShortName>Related Parties</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>999012 - Disclosure - Other Payables</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/OtherPayables</Role>
      <ShortName>Other Payables</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>999013 - Disclosure - Going concern</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/GoingConcern</Role>
      <ShortName>Going concern</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>999014 - Disclosure - Subsequent events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/SubsequentEvents</Role>
      <ShortName>Subsequent events</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>999015 - Disclosure - Reporting entity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/ReportingEntity</Role>
      <ShortName>Reporting entity</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>999016 - Disclosure - Basis of Preparation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/BasisOfPreparation</Role>
      <ShortName>Basis of Preparation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>999017 - Disclosure - Functional and presentation currency</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/FunctionalAndPresentationCurrency</Role>
      <ShortName>Functional and presentation currency</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>999018 - Disclosure - Use of judgements and estimates</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/UseOfJudgementsAndEstimates</Role>
      <ShortName>Use of judgements and estimates</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>999019 - Disclosure - Operating segments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/OperatingSegmentsDisclosure</Role>
      <ShortName>Operating segments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>999020 - Disclosure - Cash and cash equivalents</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/CashAndCashEquivalents</Role>
      <ShortName>Cash and cash equivalents</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>999021 - Disclosure - Loans receivables</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/LoansReceivables</Role>
      <ShortName>Loans receivables</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>999022 - Disclosure - Other receivables</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/OtherReceivables</Role>
      <ShortName>Other receivables</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>999023 - Disclosure - Inventories</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/Inventories</Role>
      <ShortName>Inventories</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>999024 - Disclosure - Other assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/OtherAssets</Role>
      <ShortName>Other assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>999025 - Disclosure - Financial instruments – Fair values and risk management</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/FinancialInstrumentsFairValuesAndRiskManagement</Role>
      <ShortName>Financial instruments – Fair values and risk management</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>999026 - Disclosure - Property and equipment</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/PropertyAndEquipment</Role>
      <ShortName>Property and equipment</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>999027 - Disclosure - Leases</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/Leases</Role>
      <ShortName>Leases</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>27</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>999028 - Disclosure - Intangible assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/IntangibleAssets</Role>
      <ShortName>Intangible assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>28</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>999029 - Disclosure - Deferred transaction cost – Sponsor share purchase</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/DeferredTransactionCostSponsorSharePurchase</Role>
      <ShortName>Deferred transaction cost – Sponsor share purchase</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>29</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>999030 - Disclosure - Income taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/IncomeTaxes</Role>
      <ShortName>Income taxes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>30</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>999031 - Disclosure - Loss per share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/LossPerShare</Role>
      <ShortName>Loss per share</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>31</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>999032 - Disclosure - Accounts payable</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/AccountsPayable</Role>
      <ShortName>Accounts payable</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>32</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>999033 - Disclosure - Provisions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/Provisions</Role>
      <ShortName>Provisions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>33</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>999034 - Disclosure - Employee benefits</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/EmployeeBenefits</Role>
      <ShortName>Employee benefits</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>34</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>999035 - Disclosure - Bond with warrants and derivative instruments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/BondWithWarrantsAndDerivativeInstruments</Role>
      <ShortName>Bond with warrants and derivative instruments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>35</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>999036 - Disclosure - Financial instruments by category</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/FinancialInstrumentsByCategory</Role>
      <ShortName>Financial instruments by category</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>36</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>999037 - Disclosure - Capital and reserves</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/CapitalAndReserves</Role>
      <ShortName>Capital and reserves</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>37</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>999038 - Disclosure - Capital management</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/CapitalManagement</Role>
      <ShortName>Capital management</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>38</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>999039 - Disclosure - Share-based payment arrangements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/Share-basedPaymentArrangements</Role>
      <ShortName>Share-based payment arrangements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>39</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>999040 - Disclosure - Income and expenses</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/IncomeAndExpenses</Role>
      <ShortName>Income and expenses</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>40</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>999041 - Disclosure - Finance income and costs</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/FinanceIncomeAndCosts</Role>
      <ShortName>Finance income and costs</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>41</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>999042 - Disclosure - Related parties</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/RelatedPartiesDisclosure</Role>
      <ShortName>Related parties</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>42</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>999043 - Disclosure - Statement of cash flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/StatementOfCashFlows</Role>
      <ShortName>Statement of cash flows</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>43</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>999044 - Disclosure - Commitments and contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/CommitmentsAndContingencies</Role>
      <ShortName>Commitments and contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>999045 - Disclosure - Going concerns</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/GoingConcerns</Role>
      <ShortName>Going concerns</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>999046 - Disclosure - 1. Reporting entity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/ReportingEntityDisclosure</Role>
      <ShortName>1. Reporting entity</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>999047 - Disclosure - Basis of Presentation and Material Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/BasisOfPresentationAndMaterialAccountingPolicies</Role>
      <ShortName>Basis of Presentation and Material Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>47</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>999048 - Disclosure - Deferred transaction costs – Sponsor share purchase</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/DeferredTransactionCostsSponsorSharePurchase</Role>
      <ShortName>Deferred transaction costs – Sponsor share purchase</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>48</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>999049 - Disclosure - Borrowings</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/Borrowings</Role>
      <ShortName>Borrowings</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>49</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>999050 - Disclosure - Selling, general and administrative expenses</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/SellingGeneralAndAdministrativeExpenses</Role>
      <ShortName>Selling, general and administrative expenses</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>50</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>999051 - Disclosure - Capital and other components of equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/CapitalAndOtherComponentsOfEquity</Role>
      <ShortName>Capital and other components of equity</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>51</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>999052 - Disclosure - Material accounting policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/MaterialAccountingPoliciesPolicies</Role>
      <ShortName>Material accounting policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://cik0002058261/role/BasisOfAccounting</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>999053 - Disclosure - Basis of Presentation and Material Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/BasisOfPresentationAndMaterialAccountingPoliciesPolicies</Role>
      <ShortName>Basis of Presentation and Material Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://cik0002058261/role/BasisOfAccounting</ParentRole>
      <Position>53</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>999054 - Disclosure - Basis of Accounting (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/BasisOfAccountingTables</Role>
      <ShortName>Basis of Accounting (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/BasisOfAccounting</ParentRole>
      <Position>54</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>999055 - Disclosure - Share capital (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/ShareCapitalTables</Role>
      <ShortName>Share capital (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/ShareCapital</ParentRole>
      <Position>55</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>999056 - Disclosure - Related Parties (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/RelatedPartiesTables</Role>
      <ShortName>Related Parties (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/RelatedParties</ParentRole>
      <Position>56</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>999057 - Disclosure - Reporting entity (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/ReportingEntityTables</Role>
      <ShortName>Reporting entity (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/ReportingEntity</ParentRole>
      <Position>57</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>999058 - Disclosure - Basis of Preparation (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/BasisOfPreparationTables</Role>
      <ShortName>Basis of Preparation (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/BasisOfPreparation</ParentRole>
      <Position>58</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>999059 - Disclosure - Use of judgements and estimates (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/UseOfJudgementsAndEstimatesTables</Role>
      <ShortName>Use of judgements and estimates (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/UseOfJudgementsAndEstimates</ParentRole>
      <Position>59</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>999060 - Disclosure - Operating segments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/OperatingSegmentsTables</Role>
      <ShortName>Operating segments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/OperatingSegmentsDisclosure</ParentRole>
      <Position>60</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>999061 - Disclosure - Cash and cash equivalents (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/CashAndCashEquivalentsTables</Role>
      <ShortName>Cash and cash equivalents (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/CashAndCashEquivalents</ParentRole>
      <Position>61</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>999062 - Disclosure - Loans receivables (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/LoansReceivablesTables</Role>
      <ShortName>Loans receivables (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/LoansReceivables</ParentRole>
      <Position>62</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>999063 - Disclosure - Other receivables (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/OtherReceivablesTables</Role>
      <ShortName>Other receivables (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/OtherReceivables</ParentRole>
      <Position>63</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>999064 - Disclosure - Inventories (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/InventoriesTables</Role>
      <ShortName>Inventories (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/Inventories</ParentRole>
      <Position>64</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>999065 - Disclosure - Other assets (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/OtherAssetsTables</Role>
      <ShortName>Other assets (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/OtherAssets</ParentRole>
      <Position>65</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>999066 - Disclosure - Financial instruments – Fair values and risk management (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/FinancialInstrumentsFairValuesAndRiskManagementTables</Role>
      <ShortName>Financial instruments – Fair values and risk management (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/FinancialInstrumentsFairValuesAndRiskManagement</ParentRole>
      <Position>66</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>999067 - Disclosure - Property and equipment (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/PropertyAndEquipmentTables</Role>
      <ShortName>Property and equipment (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/PropertyAndEquipment</ParentRole>
      <Position>67</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>999068 - Disclosure - Leases (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/LeasesTables</Role>
      <ShortName>Leases (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/Leases</ParentRole>
      <Position>68</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>999069 - Disclosure - Intangible assets (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/IntangibleAssetsTables</Role>
      <ShortName>Intangible assets (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/IntangibleAssets</ParentRole>
      <Position>69</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>999070 - Disclosure - Deferred transaction cost – Sponsor share purchase (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/DeferredTransactionCostSponsorSharePurchaseTables</Role>
      <ShortName>Deferred transaction cost – Sponsor share purchase (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/DeferredTransactionCostSponsorSharePurchase</ParentRole>
      <Position>70</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>999071 - Disclosure - Income taxes (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/IncomeTaxesTables</Role>
      <ShortName>Income taxes (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/IncomeTaxes</ParentRole>
      <Position>71</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>999072 - Disclosure - Loss per share (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/LossPerShareTables</Role>
      <ShortName>Loss per share (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/LossPerShare</ParentRole>
      <Position>72</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>999073 - Disclosure - Accounts payable (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/AccountsPayableTables</Role>
      <ShortName>Accounts payable (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/AccountsPayable</ParentRole>
      <Position>73</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>999074 - Disclosure - Provisions (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/ProvisionsTables</Role>
      <ShortName>Provisions (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/Provisions</ParentRole>
      <Position>74</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>999075 - Disclosure - Employee benefits (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/EmployeeBenefitsTables</Role>
      <ShortName>Employee benefits (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/EmployeeBenefits</ParentRole>
      <Position>75</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>999076 - Disclosure - Bond with warrants and derivative instruments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/BondWithWarrantsAndDerivativeInstrumentsTables</Role>
      <ShortName>Bond with warrants and derivative instruments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/BondWithWarrantsAndDerivativeInstruments</ParentRole>
      <Position>76</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>999077 - Disclosure - Financial instruments by category (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/FinancialInstrumentsByCategoryTables</Role>
      <ShortName>Financial instruments by category (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/FinancialInstrumentsByCategory</ParentRole>
      <Position>77</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>999078 - Disclosure - Capital and reserves (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/CapitalAndReservesTables</Role>
      <ShortName>Capital and reserves (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/CapitalAndReserves</ParentRole>
      <Position>78</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R79.htm</HtmlFileName>
      <LongName>999079 - Disclosure - Capital management (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/CapitalManagementTables</Role>
      <ShortName>Capital management (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/CapitalManagement</ParentRole>
      <Position>79</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R80.htm</HtmlFileName>
      <LongName>999080 - Disclosure - Share-based payment arrangements (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/Share-basedPaymentArrangementsTables</Role>
      <ShortName>Share-based payment arrangements (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/Share-basedPaymentArrangements</ParentRole>
      <Position>80</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R81.htm</HtmlFileName>
      <LongName>999081 - Disclosure - Income and expenses (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/IncomeAndExpensesTables</Role>
      <ShortName>Income and expenses (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/IncomeAndExpenses</ParentRole>
      <Position>81</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R82.htm</HtmlFileName>
      <LongName>999082 - Disclosure - Finance income and costs (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/FinanceIncomeAndCostsTables</Role>
      <ShortName>Finance income and costs (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/FinanceIncomeAndCosts</ParentRole>
      <Position>82</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R83.htm</HtmlFileName>
      <LongName>999083 - Disclosure - Related parties (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/RelatedPartiesTablesDisclosure</Role>
      <ShortName>Related parties (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/RelatedPartiesDisclosure</ParentRole>
      <Position>83</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R84.htm</HtmlFileName>
      <LongName>999084 - Disclosure - Statement of cash flows (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/StatementOfCashFlowsTables</Role>
      <ShortName>Statement of cash flows (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/StatementOfCashFlows</ParentRole>
      <Position>84</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R85.htm</HtmlFileName>
      <LongName>999085 - Disclosure - Commitments and contingencies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/CommitmentsAndContingenciesTables</Role>
      <ShortName>Commitments and contingencies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/CommitmentsAndContingencies</ParentRole>
      <Position>85</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R86.htm</HtmlFileName>
      <LongName>999086 - Disclosure - 1. Reporting entity (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/ReportingEntityTablesDisclosure</Role>
      <ShortName>1. Reporting entity (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/ReportingEntityDisclosure</ParentRole>
      <Position>86</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R87.htm</HtmlFileName>
      <LongName>999087 - Disclosure - Deferred transaction costs – Sponsor share purchase (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/DeferredTransactionCostsSponsorSharePurchaseTables</Role>
      <ShortName>Deferred transaction costs – Sponsor share purchase (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/DeferredTransactionCostsSponsorSharePurchase</ParentRole>
      <Position>87</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R88.htm</HtmlFileName>
      <LongName>999088 - Disclosure - Borrowings (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/BorrowingsTables</Role>
      <ShortName>Borrowings (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/Borrowings</ParentRole>
      <Position>88</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R89.htm</HtmlFileName>
      <LongName>999089 - Disclosure - Selling, general and administrative expenses (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/SellingGeneralAndAdministrativeExpensesTables</Role>
      <ShortName>Selling, general and administrative expenses (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/SellingGeneralAndAdministrativeExpenses</ParentRole>
      <Position>89</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R90.htm</HtmlFileName>
      <LongName>999090 - Disclosure - Capital and other components of equity (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/CapitalAndOtherComponentsOfEquityTables</Role>
      <ShortName>Capital and other components of equity (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://cik0002058261/role/CapitalAndOtherComponentsOfEquity</ParentRole>
      <Position>90</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R91.htm</HtmlFileName>
      <LongName>999091 - Disclosure - Basis of Accounting (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/BasisOfAccountingDetails</Role>
      <ShortName>Basis of Accounting (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/BasisOfAccountingTables</ParentRole>
      <Position>91</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R92.htm</HtmlFileName>
      <LongName>999092 - Disclosure - Material accounting policies (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/MaterialAccountingPoliciesDetailsNarrative</Role>
      <ShortName>Material accounting policies (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/MaterialAccountingPoliciesPolicies</ParentRole>
      <Position>92</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R93.htm</HtmlFileName>
      <LongName>999093 - Disclosure - Share capital (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/ShareCapitalDetails</Role>
      <ShortName>Share capital (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/ShareCapitalTables</ParentRole>
      <Position>93</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R94.htm</HtmlFileName>
      <LongName>999094 - Disclosure - Share capital (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/ShareCapitalDetailsNarrative</Role>
      <ShortName>Share capital (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/ShareCapitalTables</ParentRole>
      <Position>94</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R95.htm</HtmlFileName>
      <LongName>999095 - Disclosure - Related parties (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/RelatedPartiesDetails</Role>
      <ShortName>Related parties (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/RelatedPartiesTablesDisclosure</ParentRole>
      <Position>95</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R96.htm</HtmlFileName>
      <LongName>999096 - Disclosure - Related parties (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/RelatedPartiesDetails1</Role>
      <ShortName>Related parties (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/RelatedPartiesTablesDisclosure</ParentRole>
      <Position>96</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R97.htm</HtmlFileName>
      <LongName>999097 - Disclosure - Other Payables (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/OtherPayablesDetailsNarrative</Role>
      <ShortName>Other Payables (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/OtherPayables</ParentRole>
      <Position>97</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R98.htm</HtmlFileName>
      <LongName>999098 - Disclosure - Going concern (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/GoingConcernDetailsNarrative</Role>
      <ShortName>Going concern (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/GoingConcern</ParentRole>
      <Position>98</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R99.htm</HtmlFileName>
      <LongName>999099 - Disclosure - Reporting entity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/ReportingEntityDetails</Role>
      <ShortName>Reporting entity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/ReportingEntityTables</ParentRole>
      <Position>99</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R100.htm</HtmlFileName>
      <LongName>999100 - Disclosure - Material Accounting Policies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/MaterialAccountingPoliciesDetails</Role>
      <ShortName>Material Accounting Policies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>100</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R101.htm</HtmlFileName>
      <LongName>999101 - Disclosure - Material Accounting Policies (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/MaterialAccountingPoliciesDetails1</Role>
      <ShortName>Material Accounting Policies (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>101</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R102.htm</HtmlFileName>
      <LongName>999102 - Disclosure - Operating segments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/OperatingSegmentsDetails</Role>
      <ShortName>Operating segments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/OperatingSegmentsTables</ParentRole>
      <Position>102</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R103.htm</HtmlFileName>
      <LongName>999103 - Disclosure - Cash and cash equivalents (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/CashAndCashEquivalentsDetails</Role>
      <ShortName>Cash and cash equivalents (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/CashAndCashEquivalentsTables</ParentRole>
      <Position>103</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R104.htm</HtmlFileName>
      <LongName>999104 - Disclosure - Loans receivables (Details )</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/LoansReceivablesDetails</Role>
      <ShortName>Loans receivables (Details )</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/LoansReceivablesTables</ParentRole>
      <Position>104</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R105.htm</HtmlFileName>
      <LongName>999105 - Disclosure - Loans receivables (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/LoansReceivablesDetails1</Role>
      <ShortName>Loans receivables (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/LoansReceivablesTables</ParentRole>
      <Position>105</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R106.htm</HtmlFileName>
      <LongName>999106 - Disclosure - Other receivables (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/OtherReceivablesDetails</Role>
      <ShortName>Other receivables (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/OtherReceivablesTables</ParentRole>
      <Position>106</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R107.htm</HtmlFileName>
      <LongName>999107 - Disclosure - Other receivables (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/OtherReceivablesDetails1</Role>
      <ShortName>Other receivables (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/OtherReceivablesTables</ParentRole>
      <Position>107</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R108.htm</HtmlFileName>
      <LongName>999108 - Disclosure - Inventories (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/InventoriesDetails</Role>
      <ShortName>Inventories (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/InventoriesTables</ParentRole>
      <Position>108</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R109.htm</HtmlFileName>
      <LongName>999109 - Disclosure - Other assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/OtherAssetsDetails</Role>
      <ShortName>Other assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/OtherAssetsTables</ParentRole>
      <Position>109</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R110.htm</HtmlFileName>
      <LongName>999110 - Disclosure - Financial Instruments - Fair values and risk management (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/FinancialInstruments-FairValuesAndRiskManagementDetails</Role>
      <ShortName>Financial Instruments - Fair values and risk management (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>110</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R111.htm</HtmlFileName>
      <LongName>999111 - Disclosure - Financial Instruments - Fair values and risk management (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/FinancialInstruments-FairValuesAndRiskManagementDetails1</Role>
      <ShortName>Financial Instruments - Fair values and risk management (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>111</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R112.htm</HtmlFileName>
      <LongName>999112 - Disclosure - Financial Instruments - Fair values and risk management (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/FinancialInstruments-FairValuesAndRiskManagementDetails2</Role>
      <ShortName>Financial Instruments - Fair values and risk management (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>112</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R113.htm</HtmlFileName>
      <LongName>999113 - Disclosure - Financial Instruments - Fair values and risk management (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/FinancialInstruments-FairValuesAndRiskManagementDetails3</Role>
      <ShortName>Financial Instruments - Fair values and risk management (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>113</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R114.htm</HtmlFileName>
      <LongName>999114 - Disclosure - Financial Instruments - Fair values and risk management (Details 4)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/FinancialInstruments-FairValuesAndRiskManagementDetails4</Role>
      <ShortName>Financial Instruments - Fair values and risk management (Details 4)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>114</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R115.htm</HtmlFileName>
      <LongName>999115 - Disclosure - Financial Instruments - Fair values and risk management (Details 5)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/FinancialInstruments-FairValuesAndRiskManagementDetails5</Role>
      <ShortName>Financial Instruments - Fair values and risk management (Details 5)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>115</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R116.htm</HtmlFileName>
      <LongName>999116 - Disclosure - Financial Instruments - Fair values and risk management (Details 6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/FinancialInstruments-FairValuesAndRiskManagementDetails6</Role>
      <ShortName>Financial Instruments - Fair values and risk management (Details 6)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>116</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R117.htm</HtmlFileName>
      <LongName>999117 - Disclosure - Property and equipment (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/PropertyAndEquipmentDetails</Role>
      <ShortName>Property and equipment (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/PropertyAndEquipmentTables</ParentRole>
      <Position>117</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R118.htm</HtmlFileName>
      <LongName>999118 - Disclosure - Property and equipment (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/PropertyAndEquipmentDetails1</Role>
      <ShortName>Property and equipment (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/PropertyAndEquipmentTables</ParentRole>
      <Position>118</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R119.htm</HtmlFileName>
      <LongName>999119 - Disclosure - Property and equipment (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/PropertyAndEquipmentDetails2</Role>
      <ShortName>Property and equipment (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/PropertyAndEquipmentTables</ParentRole>
      <Position>119</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R120.htm</HtmlFileName>
      <LongName>999120 - Disclosure - Leases (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/LeasesDetails</Role>
      <ShortName>Leases (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/LeasesTables</ParentRole>
      <Position>120</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R121.htm</HtmlFileName>
      <LongName>999121 - Disclosure - Leases (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/LeasesDetails1</Role>
      <ShortName>Leases (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/LeasesTables</ParentRole>
      <Position>121</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R122.htm</HtmlFileName>
      <LongName>999122 - Disclosure - Leases (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/LeasesDetails2</Role>
      <ShortName>Leases (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/LeasesTables</ParentRole>
      <Position>122</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R123.htm</HtmlFileName>
      <LongName>999123 - Disclosure - Leases (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/LeasesDetails3</Role>
      <ShortName>Leases (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/LeasesTables</ParentRole>
      <Position>123</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R124.htm</HtmlFileName>
      <LongName>999124 - Disclosure - Leases (Details 4)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/LeasesDetails4</Role>
      <ShortName>Leases (Details 4)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/LeasesTables</ParentRole>
      <Position>124</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R125.htm</HtmlFileName>
      <LongName>999125 - Disclosure - Leases (Details 5)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/LeasesDetails5</Role>
      <ShortName>Leases (Details 5)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/LeasesTables</ParentRole>
      <Position>125</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R126.htm</HtmlFileName>
      <LongName>999126 - Disclosure - Intangible assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/IntangibleAssetsDetails</Role>
      <ShortName>Intangible assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/IntangibleAssetsTables</ParentRole>
      <Position>126</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R127.htm</HtmlFileName>
      <LongName>999127 - Disclosure - Intangible assets (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/IntangibleAssetsDetails1</Role>
      <ShortName>Intangible assets (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/IntangibleAssetsTables</ParentRole>
      <Position>127</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R128.htm</HtmlFileName>
      <LongName>999128 - Disclosure - Intangible assets (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/IntangibleAssetsDetailsNarrative</Role>
      <ShortName>Intangible assets (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/IntangibleAssetsTables</ParentRole>
      <Position>128</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R129.htm</HtmlFileName>
      <LongName>999129 - Disclosure - Deferred transaction cost - Sponsor share purchase (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/DeferredTransactionCost-SponsorSharePurchaseDetails</Role>
      <ShortName>Deferred transaction cost - Sponsor share purchase (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>129</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R130.htm</HtmlFileName>
      <LongName>999130 - Disclosure - Deferred transaction cost – Sponsor share purchase (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/DeferredTransactionCostSponsorSharePurchaseDetailsNarrative</Role>
      <ShortName>Deferred transaction cost – Sponsor share purchase (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/DeferredTransactionCostSponsorSharePurchaseTables</ParentRole>
      <Position>130</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R131.htm</HtmlFileName>
      <LongName>999131 - Disclosure - Income taxes (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/IncomeTaxesDetails</Role>
      <ShortName>Income taxes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/IncomeTaxesTables</ParentRole>
      <Position>131</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R132.htm</HtmlFileName>
      <LongName>999132 - Disclosure - Income taxes (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/IncomeTaxesDetails1</Role>
      <ShortName>Income taxes (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/IncomeTaxesTables</ParentRole>
      <Position>132</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R133.htm</HtmlFileName>
      <LongName>999133 - Disclosure - Income taxes (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/IncomeTaxesDetails2</Role>
      <ShortName>Income taxes (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/IncomeTaxesTables</ParentRole>
      <Position>133</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R134.htm</HtmlFileName>
      <LongName>999134 - Disclosure - Income taxes (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/IncomeTaxesDetails3</Role>
      <ShortName>Income taxes (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/IncomeTaxesTables</ParentRole>
      <Position>134</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R135.htm</HtmlFileName>
      <LongName>999135 - Disclosure - Income taxes (Details 4)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/IncomeTaxesDetails4</Role>
      <ShortName>Income taxes (Details 4)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/IncomeTaxesTables</ParentRole>
      <Position>135</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R136.htm</HtmlFileName>
      <LongName>999136 - Disclosure - Loss per share (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/LossPerShareDetails</Role>
      <ShortName>Loss per share (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/LossPerShareTables</ParentRole>
      <Position>136</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R137.htm</HtmlFileName>
      <LongName>999137 - Disclosure - Loss per share (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/LossPerShareDetails1</Role>
      <ShortName>Loss per share (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/LossPerShareTables</ParentRole>
      <Position>137</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R138.htm</HtmlFileName>
      <LongName>999138 - Disclosure - Loss per share (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/LossPerShareDetails2</Role>
      <ShortName>Loss per share (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/LossPerShareTables</ParentRole>
      <Position>138</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R139.htm</HtmlFileName>
      <LongName>999139 - Disclosure - Loss per share (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/LossPerShareDetails3</Role>
      <ShortName>Loss per share (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/LossPerShareTables</ParentRole>
      <Position>139</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R140.htm</HtmlFileName>
      <LongName>999140 - Disclosure - Accounts payables (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/AccountsPayablesDetails</Role>
      <ShortName>Accounts payables (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/AccountsPayableTables</ParentRole>
      <Position>140</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R141.htm</HtmlFileName>
      <LongName>999141 - Disclosure - Provisions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/ProvisionsDetails</Role>
      <ShortName>Provisions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/ProvisionsTables</ParentRole>
      <Position>141</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R142.htm</HtmlFileName>
      <LongName>999142 - Disclosure - Employee benefits (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/EmployeeBenefitsDetails</Role>
      <ShortName>Employee benefits (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/EmployeeBenefitsTables</ParentRole>
      <Position>142</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R143.htm</HtmlFileName>
      <LongName>999143 - Disclosure - Employee benefits (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/EmployeeBenefitsDetails1</Role>
      <ShortName>Employee benefits (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/EmployeeBenefitsTables</ParentRole>
      <Position>143</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R144.htm</HtmlFileName>
      <LongName>999144 - Disclosure - Employee benefits (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/EmployeeBenefitsDetails2</Role>
      <ShortName>Employee benefits (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/EmployeeBenefitsTables</ParentRole>
      <Position>144</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R145.htm</HtmlFileName>
      <LongName>999145 - Disclosure - Employee benefits (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/EmployeeBenefitsDetails3</Role>
      <ShortName>Employee benefits (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/EmployeeBenefitsTables</ParentRole>
      <Position>145</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R146.htm</HtmlFileName>
      <LongName>999146 - Disclosure - Bond with warrants and derivative instruments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/BondWithWarrantsAndDerivativeInstrumentsDetails</Role>
      <ShortName>Bond with warrants and derivative instruments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/BondWithWarrantsAndDerivativeInstrumentsTables</ParentRole>
      <Position>146</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R147.htm</HtmlFileName>
      <LongName>999147 - Disclosure - Bond with warrants and derivative instruments (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/BondWithWarrantsAndDerivativeInstrumentsDetails1</Role>
      <ShortName>Bond with warrants and derivative instruments (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/BondWithWarrantsAndDerivativeInstrumentsTables</ParentRole>
      <Position>147</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R148.htm</HtmlFileName>
      <LongName>999148 - Disclosure - Bond with warrants and derivative instruments (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/BondWithWarrantsAndDerivativeInstrumentsDetails2</Role>
      <ShortName>Bond with warrants and derivative instruments (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/BondWithWarrantsAndDerivativeInstrumentsTables</ParentRole>
      <Position>148</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R149.htm</HtmlFileName>
      <LongName>999149 - Disclosure - Bond with warrants and derivative instruments (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/BondWithWarrantsAndDerivativeInstrumentsDetails3</Role>
      <ShortName>Bond with warrants and derivative instruments (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/BondWithWarrantsAndDerivativeInstrumentsTables</ParentRole>
      <Position>149</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R150.htm</HtmlFileName>
      <LongName>999150 - Disclosure - Financial instruments by category (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/FinancialInstrumentsByCategoryDetails</Role>
      <ShortName>Financial instruments by category (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/FinancialInstrumentsByCategoryTables</ParentRole>
      <Position>150</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R151.htm</HtmlFileName>
      <LongName>999151 - Disclosure - Financial instruments by category (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/FinancialInstrumentsByCategoryDetails1</Role>
      <ShortName>Financial instruments by category (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/FinancialInstrumentsByCategoryTables</ParentRole>
      <Position>151</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R152.htm</HtmlFileName>
      <LongName>999152 - Disclosure - Capital and reserves (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/CapitalAndReservesDetails</Role>
      <ShortName>Capital and reserves (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/CapitalAndReservesTables</ParentRole>
      <Position>152</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R153.htm</HtmlFileName>
      <LongName>999153 - Disclosure - Capital and reserves (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/CapitalAndReservesDetails1</Role>
      <ShortName>Capital and reserves (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/CapitalAndReservesTables</ParentRole>
      <Position>153</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R154.htm</HtmlFileName>
      <LongName>999154 - Disclosure - Capital and reserves (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/CapitalAndReservesDetails2</Role>
      <ShortName>Capital and reserves (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/CapitalAndReservesTables</ParentRole>
      <Position>154</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R155.htm</HtmlFileName>
      <LongName>999155 - Disclosure - Capital and reserves (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/CapitalAndReservesDetails3</Role>
      <ShortName>Capital and reserves (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/CapitalAndReservesTables</ParentRole>
      <Position>155</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R156.htm</HtmlFileName>
      <LongName>999156 - Disclosure - Capital management (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/CapitalManagementDetails</Role>
      <ShortName>Capital management (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/CapitalManagementTables</ParentRole>
      <Position>156</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R157.htm</HtmlFileName>
      <LongName>999157 - Disclosure - Share-based payment arrangements (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/Share-basedPaymentArrangementsDetails</Role>
      <ShortName>Share-based payment arrangements (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/Share-basedPaymentArrangementsTables</ParentRole>
      <Position>157</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R158.htm</HtmlFileName>
      <LongName>999158 - Disclosure - Share-based payment arrangements (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/Share-basedPaymentArrangementsDetails1</Role>
      <ShortName>Share-based payment arrangements (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/Share-basedPaymentArrangementsTables</ParentRole>
      <Position>158</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R159.htm</HtmlFileName>
      <LongName>999159 - Disclosure - Share-based payment arrangements (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/Share-basedPaymentArrangementsDetails2</Role>
      <ShortName>Share-based payment arrangements (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/Share-basedPaymentArrangementsTables</ParentRole>
      <Position>159</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R160.htm</HtmlFileName>
      <LongName>999160 - Disclosure - Income and Expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/IncomeAndExpensesDetails</Role>
      <ShortName>Income and Expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>160</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R161.htm</HtmlFileName>
      <LongName>999161 - Disclosure - Income and Expenses (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/IncomeAndExpensesDetails1</Role>
      <ShortName>Income and Expenses (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>161</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R162.htm</HtmlFileName>
      <LongName>999162 - Disclosure - Income and Expenses (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/IncomeAndExpensesDetails2</Role>
      <ShortName>Income and Expenses (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>162</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R163.htm</HtmlFileName>
      <LongName>999163 - Disclosure - Finance income and costs (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/FinanceIncomeAndCostsDetails</Role>
      <ShortName>Finance income and costs (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/FinanceIncomeAndCostsTables</ParentRole>
      <Position>163</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R164.htm</HtmlFileName>
      <LongName>999164 - Disclosure - Related parties (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/RelatedPartiesDetails2</Role>
      <ShortName>Related parties (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/RelatedPartiesTablesDisclosure</ParentRole>
      <Position>164</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R165.htm</HtmlFileName>
      <LongName>999165 - Disclosure - Related parties (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/RelatedPartiesDetails3</Role>
      <ShortName>Related parties (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/RelatedPartiesTablesDisclosure</ParentRole>
      <Position>165</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R166.htm</HtmlFileName>
      <LongName>999166 - Disclosure - Statement of Cash flows (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/StatementOfCashFlowsDetails</Role>
      <ShortName>Statement of Cash flows (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>166</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R167.htm</HtmlFileName>
      <LongName>999167 - Disclosure - Statement of Cash flows (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/StatementOfCashFlowsDetails1</Role>
      <ShortName>Statement of Cash flows (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>167</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R168.htm</HtmlFileName>
      <LongName>999168 - Disclosure - Commitments and contingencies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/CommitmentsAndContingenciesDetails</Role>
      <ShortName>Commitments and contingencies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/CommitmentsAndContingenciesTables</ParentRole>
      <Position>168</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R169.htm</HtmlFileName>
      <LongName>999169 - Disclosure - Commitments and contingencies (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/CommitmentsAndContingenciesDetails1</Role>
      <ShortName>Commitments and contingencies (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/CommitmentsAndContingenciesTables</ParentRole>
      <Position>169</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R170.htm</HtmlFileName>
      <LongName>999170 - Disclosure - Commitments and contingencies (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/CommitmentsAndContingenciesDetails2</Role>
      <ShortName>Commitments and contingencies (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/CommitmentsAndContingenciesTables</ParentRole>
      <Position>170</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R171.htm</HtmlFileName>
      <LongName>999171 - Disclosure - Going concerns (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/GoingConcernsDetailsNarrative</Role>
      <ShortName>Going concerns (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/GoingConcern</ParentRole>
      <Position>171</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R172.htm</HtmlFileName>
      <LongName>999172 - Disclosure - Loans receivables (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/LoansReceivablesDetailsDisclosure</Role>
      <ShortName>Loans receivables (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/LoansReceivablesTables</ParentRole>
      <Position>172</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R173.htm</HtmlFileName>
      <LongName>999173 - Disclosure - Intangible assets (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/IntangibleAssetsDetails2</Role>
      <ShortName>Intangible assets (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/IntangibleAssetsTables</ParentRole>
      <Position>173</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R174.htm</HtmlFileName>
      <LongName>999174 - Disclosure - Deferred transaction costs – Sponsor share purchase (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/DeferredTransactionCostsSponsorSharePurchaseDetailsNarrative</Role>
      <ShortName>Deferred transaction costs – Sponsor share purchase (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/DeferredTransactionCostsSponsorSharePurchaseTables</ParentRole>
      <Position>174</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R175.htm</HtmlFileName>
      <LongName>999175 - Disclosure - Borrowings (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/BorrowingsDetails</Role>
      <ShortName>Borrowings (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/BorrowingsTables</ParentRole>
      <Position>175</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R176.htm</HtmlFileName>
      <LongName>999176 - Disclosure - Selling, general and administrative expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/SellingGeneralAndAdministrativeExpensesDetails</Role>
      <ShortName>Selling, general and administrative expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/SellingGeneralAndAdministrativeExpensesTables</ParentRole>
      <Position>176</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R177.htm</HtmlFileName>
      <LongName>999177 - Disclosure - Capital and other components of equity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/CapitalAndOtherComponentsOfEquityDetails</Role>
      <ShortName>Capital and other components of equity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/CapitalAndOtherComponentsOfEquityTables</ParentRole>
      <Position>177</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R178.htm</HtmlFileName>
      <LongName>999178 - Disclosure - Capital and other components of equity (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/CapitalAndOtherComponentsOfEquityDetails1</Role>
      <ShortName>Capital and other components of equity (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/CapitalAndOtherComponentsOfEquityTables</ParentRole>
      <Position>178</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R179.htm</HtmlFileName>
      <LongName>999179 - Disclosure - Capital and other components of equity (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/CapitalAndOtherComponentsOfEquityDetails2</Role>
      <ShortName>Capital and other components of equity (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/CapitalAndOtherComponentsOfEquityTables</ParentRole>
      <Position>179</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R180.htm</HtmlFileName>
      <LongName>999180 - Disclosure - Capital and other components of equity (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/CapitalAndOtherComponentsOfEquityDetails3</Role>
      <ShortName>Capital and other components of equity (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://cik0002058261/role/CapitalAndOtherComponentsOfEquityTables</ParentRole>
      <Position>180</Position>
    </Report>
    <Report instance="cubebioholding_posam.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R181.htm</HtmlFileName>
      <LongName>999181 - Disclosure - Statement of Cash flows (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://cik0002058261/role/StatementOfCashFlowsDetails2</Role>
      <ShortName>Statement of Cash flows (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>181</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>cik0002058261-20260630.xsd</File>
    <File>cik0002058261-20260630_cal.xml</File>
    <File>cik0002058261-20260630_def.xml</File>
    <File>cik0002058261-20260630_lab.xml</File>
    <File>cik0002058261-20260630_pre.xml</File>
    <File doctype="POS AM" isDefinitelyFs="true" isIfrs="true" original="cubebioholding_posam.htm">cubebioholding_posam.htm</File>
  </InputFiles>
  <SupplementalFiles>
    <File>fin_001.jpg</File>
    <File>fin_002.jpg</File>
    <File>fin_003.jpg</File>
    <File>img_001.jpg</File>
    <File>img_002.jpg</File>
    <File>img_003.jpg</File>
    <File>img_004.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy items="23">http://xbrl.sec.gov/dei/2025</BaseTaxonomy>
    <BaseTaxonomy items="1546">https://xbrl.ifrs.org/taxonomy/2025-03-27/ifrs-full</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
