3.25.4 html 207 220 1 true 58 0 false 11 false false R1.htm 0000001 - Document - Cover Sheet http://www.coincheckgroup.com/role/Cover Cover Cover 1 false false R2.htm 9952151 - Statement - CONDENSED CONSOLIDATED INTERIM STATEMENTS OF PROFIT OR LOSS AND OTHER COMPREHENSIVE INCOME (UNAUDITED) Sheet http://www.coincheckgroup.com/role/CONDENSEDCONSOLIDATEDINTERIMSTATEMENTSOFPROFITORLOSSANDOTHERCOMPREHENSIVEINCOMEUNAUDITED CONDENSED CONSOLIDATED INTERIM STATEMENTS OF PROFIT OR LOSS AND OTHER COMPREHENSIVE INCOME (UNAUDITED) Statements 2 false false R3.htm 9952152 - Statement - CONDENSED CONSOLIDATED INTERIM STATEMENTS OF FINANCIAL POSITION (UNAUDITED) Sheet http://www.coincheckgroup.com/role/CONDENSEDCONSOLIDATEDINTERIMSTATEMENTSOFFINANCIALPOSITIONUNAUDITED CONDENSED CONSOLIDATED INTERIM STATEMENTS OF FINANCIAL POSITION (UNAUDITED) Statements 3 false false R4.htm 9952153 - Statement - CONDENSED CONSOLIDATED INTERIM STATEMENTS OF CHANGES IN EQUITY (UNAUDITED) Sheet http://www.coincheckgroup.com/role/CONDENSEDCONSOLIDATEDINTERIMSTATEMENTSOFCHANGESINEQUITYUNAUDITED CONDENSED CONSOLIDATED INTERIM STATEMENTS OF CHANGES IN EQUITY (UNAUDITED) Statements 4 false false R5.htm 9952154 - Statement - CONDENSED CONSOLIDATED INTERIM STATEMENTS OF CASH FLOWS (UNAUDITED) Sheet http://www.coincheckgroup.com/role/CONDENSEDCONSOLIDATEDINTERIMSTATEMENTSOFCASHFLOWSUNAUDITED CONDENSED CONSOLIDATED INTERIM STATEMENTS OF CASH FLOWS (UNAUDITED) Statements 5 false false R6.htm 9952155 - Disclosure - Reporting Entity Sheet http://www.coincheckgroup.com/role/ReportingEntity Reporting Entity Notes 6 false false R7.htm 9952156 - Disclosure - Basis of preparation of consolidated interim financial statements Sheet http://www.coincheckgroup.com/role/Basisofpreparationofconsolidatedinterimfinancialstatements Basis of preparation of consolidated interim financial statements Notes 7 false false R8.htm 9952157 - Disclosure - Material accounting policies Sheet http://www.coincheckgroup.com/role/Materialaccountingpolicies Material accounting policies Notes 8 false false R9.htm 9952158 - Disclosure - Segment reporting Sheet http://www.coincheckgroup.com/role/Segmentreporting Segment reporting Notes 9 false false R10.htm 9952159 - Disclosure - Acquisitions of subsidiaries Sheet http://www.coincheckgroup.com/role/Acquisitionsofsubsidiaries Acquisitions of subsidiaries Notes 10 false false R11.htm 9952160 - Disclosure - Revenue Sheet http://www.coincheckgroup.com/role/Revenue Revenue Notes 11 false false R12.htm 9952161 - Disclosure - Financial instruments Sheet http://www.coincheckgroup.com/role/Financialinstruments Financial instruments Notes 12 false false R13.htm 9952162 - Disclosure - Fair value measurement Sheet http://www.coincheckgroup.com/role/Fairvaluemeasurement Fair value measurement Notes 13 false false R14.htm 9952163 - Disclosure - Share-based payments Sheet http://www.coincheckgroup.com/role/Sharebasedpayments Share-based payments Notes 14 false false R15.htm 9952164 - Disclosure - Earnings per share Sheet http://www.coincheckgroup.com/role/Earningspershare Earnings per share Notes 15 false false R16.htm 9952165 - Disclosure - Income tax expense Sheet http://www.coincheckgroup.com/role/Incometaxexpense Income tax expense Notes 16 false false R17.htm 9952166 - Disclosure - Related parties Sheet http://www.coincheckgroup.com/role/Relatedparties Related parties Notes 17 false false R18.htm 9952167 - Disclosure - Events after the reporting date Sheet http://www.coincheckgroup.com/role/Eventsafterthereportingdate Events after the reporting date Notes 18 false false R19.htm 9955511 - Disclosure - Basis of preparation of consolidated interim financial statements (Policies) Sheet http://www.coincheckgroup.com/role/BasisofpreparationofconsolidatedinterimfinancialstatementsPolicies Basis of preparation of consolidated interim financial statements (Policies) Policies 19 false false R20.htm 9955512 - Disclosure - Acquisitions of subsidiaries (Tables) Sheet http://www.coincheckgroup.com/role/AcquisitionsofsubsidiariesTables Acquisitions of subsidiaries (Tables) Tables http://www.coincheckgroup.com/role/Acquisitionsofsubsidiaries 20 false false R21.htm 9955513 - Disclosure - Revenue (Tables) Sheet http://www.coincheckgroup.com/role/RevenueTables Revenue (Tables) Tables http://www.coincheckgroup.com/role/Revenue 21 false false R22.htm 9955514 - Disclosure - Fair value measurement (Tables) Sheet http://www.coincheckgroup.com/role/FairvaluemeasurementTables Fair value measurement (Tables) Tables http://www.coincheckgroup.com/role/Fairvaluemeasurement 22 false false R23.htm 9955515 - Disclosure - Share-based payments (Tables) Sheet http://www.coincheckgroup.com/role/SharebasedpaymentsTables Share-based payments (Tables) Tables http://www.coincheckgroup.com/role/Sharebasedpayments 23 false false R24.htm 9955516 - Disclosure - Earnings per share (Tables) Sheet http://www.coincheckgroup.com/role/EarningspershareTables Earnings per share (Tables) Tables http://www.coincheckgroup.com/role/Earningspershare 24 false false R25.htm 9955517 - Disclosure - Related parties (Tables) Sheet http://www.coincheckgroup.com/role/RelatedpartiesTables Related parties (Tables) Tables http://www.coincheckgroup.com/role/Relatedparties 25 false false R26.htm 9955518 - Disclosure - Reporting Entity (Details) Sheet http://www.coincheckgroup.com/role/ReportingEntityDetails Reporting Entity (Details) Details http://www.coincheckgroup.com/role/ReportingEntity 26 false false R27.htm 9955519 - Disclosure - Segment reporting (Details) Sheet http://www.coincheckgroup.com/role/SegmentreportingDetails Segment reporting (Details) Details http://www.coincheckgroup.com/role/Segmentreporting 27 false false R28.htm 9955520 - Disclosure - Acquisitions of subsidiaries - Narrative (Details) Sheet http://www.coincheckgroup.com/role/AcquisitionsofsubsidiariesNarrativeDetails Acquisitions of subsidiaries - Narrative (Details) Details 28 false false R29.htm 9955521 - Disclosure - Acquisitions of subsidiaries - Acquisition Date Fair Value (Details) Sheet http://www.coincheckgroup.com/role/AcquisitionsofsubsidiariesAcquisitionDateFairValueDetails Acquisitions of subsidiaries - Acquisition Date Fair Value (Details) Details 29 false false R30.htm 9955522 - Disclosure - Acquisitions of subsidiaries - Assets and Liabilities Assumed (Details) Sheet http://www.coincheckgroup.com/role/AcquisitionsofsubsidiariesAssetsandLiabilitiesAssumedDetails Acquisitions of subsidiaries - Assets and Liabilities Assumed (Details) Details 30 false false R31.htm 9955523 - Disclosure - Acquisitions of subsidiaries - Goodwill Arising From The Acquisition (Details) Sheet http://www.coincheckgroup.com/role/AcquisitionsofsubsidiariesGoodwillArisingFromTheAcquisitionDetails Acquisitions of subsidiaries - Goodwill Arising From The Acquisition (Details) Details 31 false false R32.htm 9955524 - Disclosure - Revenue (Details) Sheet http://www.coincheckgroup.com/role/RevenueDetails Revenue (Details) Details http://www.coincheckgroup.com/role/RevenueTables 32 false false R33.htm 9955525 - Disclosure - Financial instruments (Details) Sheet http://www.coincheckgroup.com/role/FinancialinstrumentsDetails Financial instruments (Details) Details http://www.coincheckgroup.com/role/Financialinstruments 33 false false R34.htm 9955526 - Disclosure - Fair value measurement - Fair value hierarchy of assets and liabilities measured at fair value (Details) Sheet http://www.coincheckgroup.com/role/FairvaluemeasurementFairvaluehierarchyofassetsandliabilitiesmeasuredatfairvalueDetails Fair value measurement - Fair value hierarchy of assets and liabilities measured at fair value (Details) Details 34 false false R35.htm 9955527 - Disclosure - Fair value measurement - Equity security investments (Details) Sheet http://www.coincheckgroup.com/role/FairvaluemeasurementEquitysecurityinvestmentsDetails Fair value measurement - Equity security investments (Details) Details 35 false false R36.htm 9955528 - Disclosure - Fair value measurement - Private warrant liabilities (Details) Sheet http://www.coincheckgroup.com/role/FairvaluemeasurementPrivatewarrantliabilitiesDetails Fair value measurement - Private warrant liabilities (Details) Details 36 false false R37.htm 9955529 - Disclosure - Fair value measurement (Details) Sheet http://www.coincheckgroup.com/role/FairvaluemeasurementDetails Fair value measurement (Details) Details http://www.coincheckgroup.com/role/FairvaluemeasurementTables 37 false false R38.htm 9955530 - Disclosure - Share-based payments - Narrative (Details) Sheet http://www.coincheckgroup.com/role/SharebasedpaymentsNarrativeDetails Share-based payments - Narrative (Details) Details 38 false false R39.htm 9955531 - Disclosure - Share-based payments (Details) Sheet http://www.coincheckgroup.com/role/SharebasedpaymentsDetails Share-based payments (Details) Details http://www.coincheckgroup.com/role/SharebasedpaymentsTables 39 false false R40.htm 9955532 - Disclosure - Earnings per share (Details) Sheet http://www.coincheckgroup.com/role/EarningspershareDetails Earnings per share (Details) Details http://www.coincheckgroup.com/role/EarningspershareTables 40 false false R41.htm 9955533 - Disclosure - Earnings per share - Narrative (Details) Sheet http://www.coincheckgroup.com/role/EarningspershareNarrativeDetails Earnings per share - Narrative (Details) Details 41 false false R42.htm 9955534 - Disclosure - Income tax expense (Details) Sheet http://www.coincheckgroup.com/role/IncometaxexpenseDetails Income tax expense (Details) Details http://www.coincheckgroup.com/role/Incometaxexpense 42 false false R43.htm 9955535 - Disclosure - Related parties - Related Party Transactions (Details) Sheet http://www.coincheckgroup.com/role/RelatedpartiesRelatedPartyTransactionsDetails Related parties - Related Party Transactions (Details) Details 43 false false R44.htm 9955536 - Disclosure - Related parties - Listing of Consolidated Subsidiaries (Details) Sheet http://www.coincheckgroup.com/role/RelatedpartiesListingofConsolidatedSubsidiariesDetails Related parties - Listing of Consolidated Subsidiaries (Details) Details 44 false false R45.htm 9955537 - Disclosure - Events after the reporting date (Details) Sheet http://www.coincheckgroup.com/role/EventsafterthereportingdateDetails Events after the reporting date (Details) Details http://www.coincheckgroup.com/role/Eventsafterthereportingdate 45 false false All Reports Book All Reports cnck-20251231.htm cnck-20251231_d2.htm cnck-20251231.xsd cnck-20251231_cal.xml cnck-20251231_def.xml cnck-20251231_lab.xml cnck-20251231_pre.xml cnck-20251231_g1.jpg cnck-20251231_g2.jpg cnck-20251231_g3.jpg cnck-20251231_g4.jpg http://xbrl.sec.gov/dei/2025 https://xbrl.ifrs.org/taxonomy/2025-03-27/ifrs-full true true