<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.23.3</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>356</ContextCount>
  <ElementCount>207</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>79</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>8</UnitCount>
  <MyReports>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>0000001 - Document - Cover page</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/Coverpage</Role>
      <ShortName>Cover page</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>0000002 - Statement - UNAUDITED CONDENSED CONSOLIDATED STATEMENT OF FINANCIAL POSITION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/UNAUDITEDCONDENSEDCONSOLIDATEDSTATEMENTOFFINANCIALPOSITION</Role>
      <ShortName>UNAUDITED CONDENSED CONSOLIDATED STATEMENT OF FINANCIAL POSITION</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>0000003 - Statement - UNAUDITED CONDENSED CONSOLIDATED INCOME STATEMENT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/UNAUDITEDCONDENSEDCONSOLIDATEDINCOMESTATEMENT</Role>
      <ShortName>UNAUDITED CONDENSED CONSOLIDATED INCOME STATEMENT</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>0000004 - Statement - UNAUDITED CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME / (LOSS)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/UNAUDITEDCONDENSEDCONSOLIDATEDSTATEMENTOFCOMPREHENSIVEINCOMELOSS</Role>
      <ShortName>UNAUDITED CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME / (LOSS)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>0000005 - Statement - UNAUDITED CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/UNAUDITEDCONDENSEDCONSOLIDATEDSTATEMENTOFCASHFLOWS</Role>
      <ShortName>UNAUDITED CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>0000006 - Statement - UNAUDITED CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN EQUITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/UNAUDITEDCONDENSEDCONSOLIDATEDSTATEMENTOFCHANGESINEQUITY</Role>
      <ShortName>UNAUDITED CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN EQUITY</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>0000007 - Disclosure - Corporate information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/Corporateinformation</Role>
      <ShortName>Corporate information</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>0000008 - Disclosure - Basis of preparation and significant accounting policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/Basisofpreparationandsignificantaccountingpolicies</Role>
      <ShortName>Basis of preparation and significant accounting policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>0000009 - Disclosure - Significant changes in current reporting period</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/Significantchangesincurrentreportingperiod</Role>
      <ShortName>Significant changes in current reporting period</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>0000010 - Disclosure - Segment information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/Segmentinformation</Role>
      <ShortName>Segment information</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>0000011 - Disclosure - Profit and loss information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/Profitandlossinformation</Role>
      <ShortName>Profit and loss information</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>0000012 - Disclosure - Earnings per share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/Earningspershare</Role>
      <ShortName>Earnings per share</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>0000013 - Disclosure - Issued capital and reserves &amp; Shareholders of Global Blue</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/IssuedcapitalandreservesShareholdersofGlobalBlue</Role>
      <ShortName>Issued capital and reserves &amp; Shareholders of Global Blue</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>0000014 - Disclosure - Share-based Payments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/SharebasedPayments</Role>
      <ShortName>Share-based Payments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>0000015 - Disclosure - Fair value measurement of financial instruments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/Fairvaluemeasurementoffinancialinstruments</Role>
      <ShortName>Fair value measurement of financial instruments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>0000016 - Disclosure - Events after the reporting period</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/Eventsafterthereportingperiod</Role>
      <ShortName>Events after the reporting period</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>9954471 - Disclosure - Segment information (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/SegmentinformationTables</Role>
      <ShortName>Segment information (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.globalblue.com/role/Segmentinformation</ParentRole>
      <Position>17</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>9954472 - Disclosure - Profit and loss information (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/ProfitandlossinformationTables</Role>
      <ShortName>Profit and loss information (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.globalblue.com/role/Profitandlossinformation</ParentRole>
      <Position>18</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>9954473 - Disclosure - Earnings per share (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/EarningspershareTables</Role>
      <ShortName>Earnings per share (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.globalblue.com/role/Earningspershare</ParentRole>
      <Position>19</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>9954474 - Disclosure - Issued capital and reserves &amp; Shareholders of Global Blue (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/IssuedcapitalandreservesShareholdersofGlobalBlueTables</Role>
      <ShortName>Issued capital and reserves &amp; Shareholders of Global Blue (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.globalblue.com/role/IssuedcapitalandreservesShareholdersofGlobalBlue</ParentRole>
      <Position>20</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>9954475 - Disclosure - Share-based Payments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/SharebasedPaymentsTables</Role>
      <ShortName>Share-based Payments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.globalblue.com/role/SharebasedPayments</ParentRole>
      <Position>21</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>9954476 - Disclosure - Fair value measurement of financial instruments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/FairvaluemeasurementoffinancialinstrumentsTables</Role>
      <ShortName>Fair value measurement of financial instruments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.globalblue.com/role/Fairvaluemeasurementoffinancialinstruments</ParentRole>
      <Position>22</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>9954477 - Disclosure - Segment information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/SegmentinformationDetails</Role>
      <ShortName>Segment information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.globalblue.com/role/SegmentinformationTables</ParentRole>
      <Position>23</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>9954478 - Disclosure - Profit and loss information - Disclosure of expenses by nature (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/ProfitandlossinformationDisclosureofexpensesbynatureDetails</Role>
      <ShortName>Profit and loss information - Disclosure of expenses by nature (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>9954479 - Disclosure - Profit and loss information - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/ProfitandlossinformationNarrativeDetails</Role>
      <ShortName>Profit and loss information - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>9954480 - Disclosure - Profit and loss information - Disclosure of income tax benefit (expense) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/ProfitandlossinformationDisclosureofincometaxbenefitexpenseDetails</Role>
      <ShortName>Profit and loss information - Disclosure of income tax benefit (expense) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>9954481 - Disclosure - Profit and loss information - Income tax Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/ProfitandlossinformationIncometaxNarrativeDetails</Role>
      <ShortName>Profit and loss information - Income tax Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>27</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>9954482 - Disclosure - Earnings per share - Summary of earnings per share (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/EarningspershareSummaryofearningspershareDetails</Role>
      <ShortName>Earnings per share - Summary of earnings per share (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>28</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>9954483 - Disclosure - Earnings per share - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/EarningspershareNarrativeDetails</Role>
      <ShortName>Earnings per share - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>29</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>9954484 - Disclosure - Issued capital and reserves &amp; Shareholders of Global Blue - Disclosure of share capital authorized and issued (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/IssuedcapitalandreservesShareholdersofGlobalBlueDisclosureofsharecapitalauthorizedandissuedDetails</Role>
      <ShortName>Issued capital and reserves &amp; Shareholders of Global Blue - Disclosure of share capital authorized and issued (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>30</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>9954485 - Disclosure - Issued capital and reserves &amp; Shareholders of Global Blue - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/IssuedcapitalandreservesShareholdersofGlobalBlueNarrativeDetails</Role>
      <ShortName>Issued capital and reserves &amp; Shareholders of Global Blue - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.globalblue.com/role/IssuedcapitalandreservesShareholdersofGlobalBlueTables</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>9954486 - Disclosure - Issued capital and reserves &amp; Shareholders of Global Blue - Disclosure of treasury shares (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/IssuedcapitalandreservesShareholdersofGlobalBlueDisclosureoftreasurysharesDetails</Role>
      <ShortName>Issued capital and reserves &amp; Shareholders of Global Blue - Disclosure of treasury shares (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>32</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>9954487 - Disclosure - Issued capital and reserves &amp; Shareholders of Global Blue - Disclosure of share capital of Global Blue Group Holding A.G. (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/IssuedcapitalandreservesShareholdersofGlobalBlueDisclosureofsharecapitalofGlobalBlueGroupHoldingAGDetails</Role>
      <ShortName>Issued capital and reserves &amp; Shareholders of Global Blue - Disclosure of share capital of Global Blue Group Holding A.G. (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>33</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>9954488 - Disclosure - Share-based Payments - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/SharebasedPaymentsNarrativeDetails</Role>
      <ShortName>Share-based Payments - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>34</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>9954489 - Disclosure - Share-based Payments - Disclosure of indirect measurement of fair value of restricted shares granted during period (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/SharebasedPaymentsDisclosureofindirectmeasurementoffairvalueofrestrictedsharesgrantedduringperiodDetails</Role>
      <ShortName>Share-based Payments - Disclosure of indirect measurement of fair value of restricted shares granted during period (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>35</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>9954490 - Disclosure - Share-based Payments - Disclosure of reconciliation of restricted shares (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/SharebasedPaymentsDisclosureofreconciliationofrestrictedsharesDetails</Role>
      <ShortName>Share-based Payments - Disclosure of reconciliation of restricted shares (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>36</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>9954491 - Disclosure - Fair value measurement of financial instruments - Disclosure of fair value measurement of assets and liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/FairvaluemeasurementoffinancialinstrumentsDisclosureoffairvaluemeasurementofassetsandliabilitiesDetails</Role>
      <ShortName>Fair value measurement of financial instruments - Disclosure of fair value measurement of assets and liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>37</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>9954492 - Disclosure - Fair value measurement of financial instruments - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/FairvaluemeasurementoffinancialinstrumentsNarrativeDetails</Role>
      <ShortName>Fair value measurement of financial instruments - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>38</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>9954493 - Disclosure - Fair value measurement of financial instruments - Disclosure of reconciliation of changes in Level 3 hierarchy (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/FairvaluemeasurementoffinancialinstrumentsDisclosureofreconciliationofchangesinLevel3hierarchyDetails</Role>
      <ShortName>Fair value measurement of financial instruments - Disclosure of reconciliation of changes in Level 3 hierarchy (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>39</Position>
    </Report>
    <Report instance="gb-20230930.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>9954494 - Disclosure - Events after the reporting period (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.globalblue.com/role/EventsafterthereportingperiodDetails</Role>
      <ShortName>Events after the reporting period (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.globalblue.com/role/Eventsafterthereportingperiod</ParentRole>
      <Position>40</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File doctype="6-K" isDefinitelyFs="true" isIfrs="true" isUsgaap="true" original="gb-20230930.htm">gb-20230930.htm</File>
    <File>gb-20230930.xsd</File>
    <File>gb-20230930_cal.xml</File>
    <File>gb-20230930_def.xml</File>
    <File>gb-20230930_lab.xml</File>
    <File>gb-20230930_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy items="13">http://xbrl.sec.gov/dei/2023</BaseTaxonomy>
    <BaseTaxonomy items="799">https://xbrl.ifrs.org/taxonomy/2023-03-23/ifrs-full</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
