<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.26.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>243</ContextCount>
  <ElementCount>272</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>83</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>4</UnitCount>
  <MyReports>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>00090 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DocumentDocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>00100 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL POSITION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/StatementCondensedConsolidatedStatementsOfFinancialPosition</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL POSITION</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>00200 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF PROFIT OR LOSS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/StatementCondensedConsolidatedStatementsOfProfitOrLoss</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF PROFIT OR LOSS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>00300 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME/(LOSS)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/StatementCondensedConsolidatedStatementsOfComprehensiveIncomeLoss</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME/(LOSS)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>00305 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME/(LOSS) (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/StatementCondensedConsolidatedStatementsOfComprehensiveIncomeLossParenthetical</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME/(LOSS) (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>00400 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/StatementCondensedConsolidatedStatementsOfChangesInShareholdersEquity</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>00405 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/StatementCondensedConsolidatedStatementsOfChangesInShareholdersEquityParenthetical</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>00500 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/StatementCondensedConsolidatedStatementsOfCashFlows</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>00505 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/StatementCondensedConsolidatedStatementsOfCashFlowsParenthetical</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>10101 - Disclosure - Organization and principal activities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureOrganizationAndPrincipalActivities</Role>
      <ShortName>Organization and principal activities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>10201 - Disclosure - Basis of preparation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureBasisOfPreparation</Role>
      <ShortName>Basis of preparation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>10301 - Disclosure - Estimates</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureEstimates</Role>
      <ShortName>Estimates</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>10401 - Disclosure - Financial risk management and financial instruments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureFinancialRiskManagementAndFinancialInstruments</Role>
      <ShortName>Financial risk management and financial instruments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>10501 - Disclosure - Cash and cash equivalents and restricted cash</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureCashAndCashEquivalentsAndRestrictedCash</Role>
      <ShortName>Cash and cash equivalents and restricted cash</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>10601 - Disclosure - Digital assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureDigitalAssets</Role>
      <ShortName>Digital assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>10701 - Disclosure - Trade and other receivables, net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureTradeAndOtherReceivablesNet</Role>
      <ShortName>Trade and other receivables, net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>10801 - Disclosure - Collateral receivables and collateral payables</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureCollateralReceivablesAndCollateralPayables</Role>
      <ShortName>Collateral receivables and collateral payables</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>10901 - Disclosure - Financial assets at fair value through profits or loss</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureFinancialAssetsAtFairValueThroughProfitsOrLoss</Role>
      <ShortName>Financial assets at fair value through profits or loss</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>11001 - Disclosure - Crypto assets loan receivables</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureCryptoAssetsLoanReceivables</Role>
      <ShortName>Crypto assets loan receivables</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>11101 - Disclosure - Intangible assets and goodwill</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureIntangibleAssetsAndGoodwill</Role>
      <ShortName>Intangible assets and goodwill</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>11201 - Disclosure - Trade and other payables</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureTradeAndOtherPayables</Role>
      <ShortName>Trade and other payables</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>11301 - Disclosure - Liabilities due to customers</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureLiabilitiesDueToCustomers</Role>
      <ShortName>Liabilities due to customers</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>11401 - Disclosure - Segment information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureSegmentInformation</Role>
      <ShortName>Segment information</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>11501 - Disclosure - Profit/(loss) for the period</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureProfitLossForPeriod</Role>
      <ShortName>Profit/(loss) for the period</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>11601 - Disclosure - Other gains, net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureOtherGainsNet</Role>
      <ShortName>Other gains, net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>11701 - Disclosure - Dividend</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureDividend</Role>
      <ShortName>Dividend</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>11801 - Disclosure - Income tax expense</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureIncomeTaxExpense</Role>
      <ShortName>Income tax expense</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>27</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>11901 - Disclosure - Significant related party transactions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureSignificantRelatedPartyTransactions</Role>
      <ShortName>Significant related party transactions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>28</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>12001 - Disclosure - Commitments and contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureCommitmentsAndContingencies</Role>
      <ShortName>Commitments and contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>29</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>12101 - Disclosure - Subsequent events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureSubsequentEvents</Role>
      <ShortName>Subsequent events</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>30</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>20202 - Disclosure - Basis of preparation (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureBasisOfPreparationPolicies</Role>
      <ShortName>Basis of preparation (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <Position>31</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>30403 - Disclosure - Financial risk management and financial instruments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureFinancialRiskManagementAndFinancialInstrumentsTables</Role>
      <ShortName>Financial risk management and financial instruments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureFinancialRiskManagementAndFinancialInstruments</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>30503 - Disclosure - Cash and cash equivalents and restricted cash (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureCashAndCashEquivalentsAndRestrictedCashTables</Role>
      <ShortName>Cash and cash equivalents and restricted cash (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureCashAndCashEquivalentsAndRestrictedCash</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>30603 - Disclosure - Digital assets (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureDigitalAssetsTables</Role>
      <ShortName>Digital assets (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureDigitalAssets</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>30703 - Disclosure - Trade and other receivables, net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureTradeAndOtherReceivablesNetTables</Role>
      <ShortName>Trade and other receivables, net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureTradeAndOtherReceivablesNet</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>30803 - Disclosure - Collateral receivables and collateral payables (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureCollateralReceivablesAndCollateralPayablesTables</Role>
      <ShortName>Collateral receivables and collateral payables (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureCollateralReceivablesAndCollateralPayables</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>30903 - Disclosure - Financial assets at fair value through profits or loss (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureFinancialAssetsAtFairValueThroughProfitsOrLossTables</Role>
      <ShortName>Financial assets at fair value through profits or loss (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureFinancialAssetsAtFairValueThroughProfitsOrLoss</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>31003 - Disclosure - Crypto assets loan receivables (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureCryptoAssetsLoanReceivablesTables</Role>
      <ShortName>Crypto assets loan receivables (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureCryptoAssetsLoanReceivables</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>31103 - Disclosure - Intangible assets and goodwill (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureIntangibleAssetsAndGoodwillTables</Role>
      <ShortName>Intangible assets and goodwill (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureIntangibleAssetsAndGoodwill</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>31203 - Disclosure - Trade and other payables (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureTradeAndOtherPayablesTables</Role>
      <ShortName>Trade and other payables (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureTradeAndOtherPayables</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>31303 - Disclosure - Liabilities due to customers (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureLiabilitiesDueToCustomersTables</Role>
      <ShortName>Liabilities due to customers (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureLiabilitiesDueToCustomers</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>31403 - Disclosure - Segment information (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureSegmentInformationTables</Role>
      <ShortName>Segment information (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureSegmentInformation</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>31503 - Disclosure - Profit/(loss) for the period (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureProfitLossForPeriodTables</Role>
      <ShortName>Profit/(loss) for the period (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureProfitLossForPeriod</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>31603 - Disclosure - Other gains, net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureOtherGainsNetTables</Role>
      <ShortName>Other gains, net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureOtherGainsNet</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>31903 - Disclosure - Significant related party transactions (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureSignificantRelatedPartyTransactionsTables</Role>
      <ShortName>Significant related party transactions (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureSignificantRelatedPartyTransactions</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>40401 - Disclosure - Financial risk management and financial instruments - Fair value estimation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureFinancialRiskManagementAndFinancialInstrumentsFairValueEstimationDetails</Role>
      <ShortName>Financial risk management and financial instruments - Fair value estimation (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>40402 - Disclosure - Financial risk management and financial instruments - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureFinancialRiskManagementAndFinancialInstrumentsNarrativeDetails</Role>
      <ShortName>Financial risk management and financial instruments - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureFinancialRiskManagementAndFinancialInstrumentsTables</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>40403 - Disclosure - Financial risk management and financial instruments - Changes and movement of financial instruments in Level 3 (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureFinancialRiskManagementAndFinancialInstrumentsChangesAndMovementOfFinancialInstrumentsInLevel3Details</Role>
      <ShortName>Financial risk management and financial instruments - Changes and movement of financial instruments in Level 3 (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>48</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>40501 - Disclosure - Cash and cash equivalents and restricted cash (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureCashAndCashEquivalentsAndRestrictedCashDetails</Role>
      <ShortName>Cash and cash equivalents and restricted cash (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureCashAndCashEquivalentsAndRestrictedCashTables</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>40502 - Disclosure - Cash and cash equivalents and restricted cash - Cash and cash equivalents, time deposits and restricted cash (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureCashAndCashEquivalentsAndRestrictedCashCashAndCashEquivalentsTimeDepositsAndRestrictedCashDetails</Role>
      <ShortName>Cash and cash equivalents and restricted cash - Cash and cash equivalents, time deposits and restricted cash (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>50</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>40601 - Disclosure - Digital assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureDigitalAssetsDetails</Role>
      <ShortName>Digital assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureDigitalAssetsTables</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>40602 - Disclosure - Digital assets - Fair values of digital assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureDigitalAssetsFairValuesOfDigitalAssetsDetails</Role>
      <ShortName>Digital assets - Fair values of digital assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>52</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>40701 - Disclosure - Trade and other receivables, net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureTradeAndOtherReceivablesNetDetails</Role>
      <ShortName>Trade and other receivables, net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureTradeAndOtherReceivablesNetTables</ParentRole>
      <Position>53</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>40702 - Disclosure - Trade and other receivables, net - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureTradeAndOtherReceivablesNetNarrativeDetails</Role>
      <ShortName>Trade and other receivables, net - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>40801 - Disclosure - Collateral receivables and collateral payables - Collateral receivables (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureCollateralReceivablesAndCollateralPayablesCollateralReceivablesDetails</Role>
      <ShortName>Collateral receivables and collateral payables - Collateral receivables (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>55</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>40802 - Disclosure - Collateral receivables and collateral payables - Collateral payables (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureCollateralReceivablesAndCollateralPayablesCollateralPayablesDetails</Role>
      <ShortName>Collateral receivables and collateral payables - Collateral payables (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>56</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>40901 - Disclosure - Financial assets at fair value through profits or loss (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureFinancialAssetsAtFairValueThroughProfitsOrLossDetails</Role>
      <ShortName>Financial assets at fair value through profits or loss (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureFinancialAssetsAtFairValueThroughProfitsOrLossTables</ParentRole>
      <Position>57</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>41001 - Disclosure - Crypto assets loan receivables (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureCryptoAssetsLoanReceivablesDetails</Role>
      <ShortName>Crypto assets loan receivables (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureCryptoAssetsLoanReceivablesTables</ParentRole>
      <Position>58</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>41002 - Disclosure - Crypto assets loan receivables - Fair values (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureCryptoAssetsLoanReceivablesFairValuesDetails</Role>
      <ShortName>Crypto assets loan receivables - Fair values (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>59</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>41101 - Disclosure - Intangible assets and goodwill (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureIntangibleAssetsAndGoodwillDetails</Role>
      <ShortName>Intangible assets and goodwill (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureIntangibleAssetsAndGoodwillTables</ParentRole>
      <Position>60</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>41201 - Disclosure - Trade and other payables (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureTradeAndOtherPayablesDetails</Role>
      <ShortName>Trade and other payables (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureTradeAndOtherPayablesTables</ParentRole>
      <Position>61</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>41301 - Disclosure - Liabilities due to customers (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureLiabilitiesDueToCustomersDetails</Role>
      <ShortName>Liabilities due to customers (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureLiabilitiesDueToCustomersTables</ParentRole>
      <Position>62</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>41401 - Disclosure - Segment information - Revenue (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureSegmentInformationRevenueDetails</Role>
      <ShortName>Segment information - Revenue (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>41402 - Disclosure - Segment information - Geographical location (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureSegmentInformationGeographicalLocationDetails</Role>
      <ShortName>Segment information - Geographical location (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>64</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>41403 - Disclosure - Segment information - Segment assets and liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureSegmentInformationSegmentAssetsAndLiabilitiesDetails</Role>
      <ShortName>Segment information - Segment assets and liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>41501 - Disclosure - Profit/(loss) for the period (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureProfitLossForPeriodDetails</Role>
      <ShortName>Profit/(loss) for the period (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureProfitLossForPeriodTables</ParentRole>
      <Position>66</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>41601 - Disclosure - Other gains, net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureOtherGainsNetDetails</Role>
      <ShortName>Other gains, net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureOtherGainsNetTables</ParentRole>
      <Position>67</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>41701 - Disclosure - Dividend (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureDividendDetails</Role>
      <ShortName>Dividend (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureDividend</ParentRole>
      <Position>68</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>41801 - Disclosure - Income tax expense (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureIncomeTaxExpenseDetails</Role>
      <ShortName>Income tax expense (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureIncomeTaxExpense</ParentRole>
      <Position>69</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>41901 - Disclosure - Significant related party transactions - Transactions with Related Parties (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureSignificantRelatedPartyTransactionsTransactionsWithRelatedPartiesDetails</Role>
      <ShortName>Significant related party transactions - Transactions with Related Parties (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>70</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>41902 - Disclosure - Significant related party transactions - Key management personnel (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureSignificantRelatedPartyTransactionsKeyManagementPersonnelDetails</Role>
      <ShortName>Significant related party transactions - Key management personnel (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>71</Position>
    </Report>
    <Report instance="ambr-20260910x6k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>42001 - Disclosure - Commitments and contingencies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.i-click.com/role/DisclosureCommitmentsAndContingenciesDetails</Role>
      <ShortName>Commitments and contingencies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.i-click.com/role/DisclosureCommitmentsAndContingencies</ParentRole>
      <Position>72</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>ambr-20260910.xsd</File>
    <File>ambr-20260910_cal.xml</File>
    <File>ambr-20260910_def.xml</File>
    <File>ambr-20260910_lab.xml</File>
    <File>ambr-20260910_pre.xml</File>
    <File doctype="6-K" isDefinitelyFs="true" isIfrs="true" isUsgaap="true" original="ambr-20260910x6k.htm">ambr-20260910x6k.htm</File>
    <File doctype="6-K" isDefinitelyFs="true" isIfrs="true" isUsgaap="true" original="ambr-20260910xex99d1.htm">ambr-20260910xex99d1.htm</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy items="1">http://fasb.org/srt/2025</BaseTaxonomy>
    <BaseTaxonomy items="8">http://xbrl.sec.gov/dei/2025</BaseTaxonomy>
    <BaseTaxonomy items="600">https://xbrl.ifrs.org/taxonomy/2025-03-27/ifrs-full</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
