<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.26.3</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>658</ContextCount>
  <ElementCount>444</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>240</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>5</UnitCount>
  <MyReports>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>75000 - Document - Cover Page</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/CoverPage</Role>
      <ShortName>Cover Page</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>75010 - Statement - Interim Condensed Consolidated Statements of Financial Position</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/StatementInterimCondensedConsolidatedStatementsOfFinancialPosition</Role>
      <ShortName>Interim Condensed Consolidated Statements of Financial Position</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>75020 - Statement - Interim Condensed Consolidated Statements of Profit or Loss and Other Comprehensive Income</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/StatementInterimCondensedConsolidatedStatementsOfProfitOrLossAndOtherComprehensiveIncome</Role>
      <ShortName>Interim Condensed Consolidated Statements of Profit or Loss and Other Comprehensive Income</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>75040 - Statement - Interim Condensed Consolidated Statements of Changes In Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/StatementInterimCondensedConsolidatedStatementsOfChangesInEquity</Role>
      <ShortName>Interim Condensed Consolidated Statements of Changes In Equity</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>75050 - Statement - Interim Condensed Consolidated Statements of Cash Flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/StatementInterimCondensedConsolidatedStatementsOfCashFlows</Role>
      <ShortName>Interim Condensed Consolidated Statements of Cash Flows</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>75060 - Disclosure - Reporting Entity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/ReportingEntity</Role>
      <ShortName>Reporting Entity</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>75070 - Disclosure - Basis of Preparation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureBasisOfPreparation</Role>
      <ShortName>Basis of Preparation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>75080 - Disclosure - Use of Judgments and Estimates</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureUseOfJudgmentsAndEstimates</Role>
      <ShortName>Use of Judgments and Estimates</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>75090 - Disclosure - Newly Effective and Newly Issued But Not Yet Effective IFRS and IFRIC.</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureNewlyEffectiveAndNewlyIssuedButNotYetEffectiveIfrsAndIfric</Role>
      <ShortName>Newly Effective and Newly Issued But Not Yet Effective IFRS and IFRIC.</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>75100 - Disclosure - Significant and New Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureSignificantAndNewAccountingPolicies</Role>
      <ShortName>Significant and New Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>75110 - Disclosure - Business Combinations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureBusinessCombinations</Role>
      <ShortName>Business Combinations</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>75120 - Disclosure - Operating Segments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/OperatingSegments</Role>
      <ShortName>Operating Segments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>75130 - Disclosure - Property, Plant and Equipment</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/PropertyPlantAndEquipment</Role>
      <ShortName>Property, Plant and Equipment</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>75140 - Disclosure - Right of Use Assets and Lease Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureRightOfUseAssetsAndLeaseLiabilities</Role>
      <ShortName>Right of Use Assets and Lease Liabilities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>75150 - Disclosure - Intangible Assets and Goodwill</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/IntangibleAssetsAndGoodwill</Role>
      <ShortName>Intangible Assets and Goodwill</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>75180 - Disclosure - Financial Assets and Financial Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureFinancialAssetsAndFinancialLiabilities1</Role>
      <ShortName>Financial Assets and Financial Liabilities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>75200 - Disclosure - Inventories</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/Inventories</Role>
      <ShortName>Inventories</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>75210 - Disclosure - Cash and Cash Equivalents</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/CashAndCashEquivalents</Role>
      <ShortName>Cash and Cash Equivalents</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>75220 - Disclosure - Capital and Reserves</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/CapitalAndReserves</Role>
      <ShortName>Capital and Reserves</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>75230 - Disclosure - Provisions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/Provisions</Role>
      <ShortName>Provisions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>75240 - Disclosure - Government Grants</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/GovernmentGrants</Role>
      <ShortName>Government Grants</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>75250 - Disclosure - Revenue from Contracts with Customers</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/RevenueFromContractsWithCustomers</Role>
      <ShortName>Revenue from Contracts with Customers</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>75260 - Disclosure - Expenses</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureExpenses1</Role>
      <ShortName>Expenses</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>75270 - Disclosure - Employee Benefits</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/EmployeeBenefits</Role>
      <ShortName>Employee Benefits</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>75280 - Disclosure - Financial Income and Expenses</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/FinancialIncomeAndExpenses</Role>
      <ShortName>Financial Income and Expenses</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>75290 - Disclosure - Loss Per Share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureLossPerShare</Role>
      <ShortName>Loss Per Share</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>75300 - Disclosure - Tax-related balances</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureTaxrelatedBalances</Role>
      <ShortName>Tax-related balances</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>27</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>75310 - Disclosure - Related Party Disclosures</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureRelatedPartyDisclosures2</Role>
      <ShortName>Related Party Disclosures</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>28</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>75320 - Disclosure - Financial Risk Management</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/FinancialRiskManagement</Role>
      <ShortName>Financial Risk Management</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>29</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>75330 - Disclosure - Events after the Reporting Period</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/EventsAfterTheReportingPeriod</Role>
      <ShortName>Events after the Reporting Period</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>30</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>75340 - Disclosure - Detail of Wallbox Group subsidiaries</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureDetailOfWallboxGroupSubsidiaries</Role>
      <ShortName>Detail of Wallbox Group subsidiaries</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>31</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>75370 - Disclosure - Operating Segments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/OperatingSegmentsTables</Role>
      <ShortName>Operating Segments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://wallbox.com/20260630/taxonomy/role/OperatingSegments</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>75380 - Disclosure - Property, Plant and Equipment (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/PropertyPlantAndEquipmentTables</Role>
      <ShortName>Property, Plant and Equipment (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://wallbox.com/20260630/taxonomy/role/PropertyPlantAndEquipment</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>75390 - Disclosure - Right of Use Assets and Lease Liabilities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureRightOfUseAssetsAndLeaseLiabilitiesTables</Role>
      <ShortName>Right of Use Assets and Lease Liabilities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://wallbox.com/20260630/taxonomy/role/DisclosureRightOfUseAssetsAndLeaseLiabilities</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>75400 - Disclosure - Intangible Assets and Goodwill (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/IntangibleAssetsAndGoodwillTables</Role>
      <ShortName>Intangible Assets and Goodwill (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://wallbox.com/20260630/taxonomy/role/IntangibleAssetsAndGoodwill</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>75420 - Disclosure - Financial Assets and Financial Liabilities - (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureFinancialAssetsAndFinancialLiabilitiesTables</Role>
      <ShortName>Financial Assets and Financial Liabilities - (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://wallbox.com/20260630/taxonomy/role/DisclosureFinancialAssetsAndFinancialLiabilities1</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>75430 - Disclosure - Inventories (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/InventoriesTables</Role>
      <ShortName>Inventories (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://wallbox.com/20260630/taxonomy/role/Inventories</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>75440 - Disclosure - Cash and Cash Equivalents (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/CashAndCashEquivalentsTables</Role>
      <ShortName>Cash and Cash Equivalents (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://wallbox.com/20260630/taxonomy/role/CashAndCashEquivalents</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>75450 - Disclosure - Capital and Reserves (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/CapitalAndReservesTables</Role>
      <ShortName>Capital and Reserves (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://wallbox.com/20260630/taxonomy/role/CapitalAndReserves</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>75460 - Disclosure - Provisions (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/ProvisionsTables</Role>
      <ShortName>Provisions (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://wallbox.com/20260630/taxonomy/role/Provisions</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>75470 - Disclosure - Government Grants (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/GovernmentGrantsTables</Role>
      <ShortName>Government Grants (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://wallbox.com/20260630/taxonomy/role/GovernmentGrants</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>75480 - Disclosure - Revenue from Contracts with Customers (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/RevenueFromContractsWithCustomersTables</Role>
      <ShortName>Revenue from Contracts with Customers (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://wallbox.com/20260630/taxonomy/role/RevenueFromContractsWithCustomers</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>75490 - Disclosure - Expenses (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureExpensesTables</Role>
      <ShortName>Expenses (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://wallbox.com/20260630/taxonomy/role/DisclosureExpenses1</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>75500 - Disclosure - Employee Benefits (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/EmployeeBenefitsTables</Role>
      <ShortName>Employee Benefits (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://wallbox.com/20260630/taxonomy/role/EmployeeBenefits</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>75510 - Disclosure - Financial Income and Expenses (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/FinancialIncomeAndExpensesTables</Role>
      <ShortName>Financial Income and Expenses (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://wallbox.com/20260630/taxonomy/role/FinancialIncomeAndExpenses</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>75520 - Disclosure - Loss Per Share (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureLossPerShareTables</Role>
      <ShortName>Loss Per Share (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://wallbox.com/20260630/taxonomy/role/DisclosureLossPerShare</ParentRole>
      <Position>46</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>75530 - Disclosure - Tax-related balances (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureTaxrelatedBalancesTables</Role>
      <ShortName>Tax-related balances (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://wallbox.com/20260630/taxonomy/role/DisclosureTaxrelatedBalances</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>75540 - Disclosure - Related Party Disclosures (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureRelatedPartyDisclosuresTables1</Role>
      <ShortName>Related Party Disclosures (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://wallbox.com/20260630/taxonomy/role/DisclosureRelatedPartyDisclosures2</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>75550 - Disclosure - Financial Risk Management (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/FinancialRiskManagementTables</Role>
      <ShortName>Financial Risk Management (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://wallbox.com/20260630/taxonomy/role/FinancialRiskManagement</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>75560 - Disclosure - Detail of Wallbox Group subsidiaries (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureDetailOfWallboxGroupSubsidiariesTables</Role>
      <ShortName>Detail of Wallbox Group subsidiaries (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://wallbox.com/20260630/taxonomy/role/DisclosureDetailOfWallboxGroupSubsidiaries</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>75570 - Disclosure - Reporting Entity - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/ReportingEntityAdditionalInformationDetail</Role>
      <ShortName>Reporting Entity - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>51</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>75580 - Disclosure - Basis of Preparation - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureBasisOfPreparationAdditionalInformationDetail</Role>
      <ShortName>Basis of Preparation - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>52</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>75590 - Disclosure - Use of Judgments and Estimates - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureUseOfJudgmentsAndEstimatesAdditionalInformationDetail</Role>
      <ShortName>Use of Judgments and Estimates - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>53</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>75600 - Disclosure - Operating Segments - Summary of Reconciliation of Information on Reportable Segments with Amounts Reported In Financial Statements (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/OperatingSegmentsSummaryOfReconciliationOfInformationOnReportableSegmentsWithAmountsReportedInFinancialStatementsDetail</Role>
      <ShortName>Operating Segments - Summary of Reconciliation of Information on Reportable Segments with Amounts Reported In Financial Statements (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>75610 - Disclosure - Operating Segments - Summary of External Revenue by Location of Customers (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureOperatingSegmentsSummaryOfExternalRevenueByLocationOfCustomersDetails</Role>
      <ShortName>Operating Segments - Summary of External Revenue by Location of Customers (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>55</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>75620 - Disclosure - Operating Segments - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureOperatingSegmentsAdditionalInformationDetails</Role>
      <ShortName>Operating Segments - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>56</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>75630 - Disclosure - Property, Plant and Equipment - Summary of Property Plant and Equipment (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosurePropertyPlantAndEquipmentSummaryOfPropertyPlantAndEquipmentDetail</Role>
      <ShortName>Property, Plant and Equipment - Summary of Property Plant and Equipment (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>57</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>75640 - Disclosure - Property, Plant and Equipment - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/PropertyPlantAndEquipmentAdditionalInformationDetail</Role>
      <ShortName>Property, Plant and Equipment - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>58</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>75660 - Disclosure - Right of Use Assets and Lease Liabilities - Summary of Carrying Amounts of Right of Use Assets (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureRightOfUseAssetsAndLeaseLiabilitiesSummaryOfCarryingAmountsOfRightOfUseAssetsDetail</Role>
      <ShortName>Right of Use Assets and Lease Liabilities - Summary of Carrying Amounts of Right of Use Assets (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>59</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>75670 - Disclosure - Right of Use Assets and Lease Liabilities - Summary of Carrying Amounts of Lease Liabilities (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureRightOfUseAssetsAndLeaseLiabilitiesSummaryOfCarryingAmountsOfLeaseLiabilitiesDetail</Role>
      <ShortName>Right of Use Assets and Lease Liabilities - Summary of Carrying Amounts of Lease Liabilities (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>60</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>75680 - Disclosure - Right of Use Assets and Lease Liabilities - Summary of Maturity Analysis of Lease Liabilities (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureRightOfUseAssetsAndLeaseLiabilitiesSummaryOfMaturityAnalysisOfLeaseLiabilitiesDetail</Role>
      <ShortName>Right of Use Assets and Lease Liabilities - Summary of Maturity Analysis of Lease Liabilities (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>61</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>75690 - Disclosure - Right of Use Assets and Lease Liabilities - Summary of Amounts Recognized in Profit or Loss Derived From Lease Liabilities (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureRightOfUseAssetsAndLeaseLiabilitiesSummaryOfAmountsRecognizedInProfitOrLossDerivedFromLeaseLiabilitiesDetail</Role>
      <ShortName>Right of Use Assets and Lease Liabilities - Summary of Amounts Recognized in Profit or Loss Derived From Lease Liabilities (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>62</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>75700 - Disclosure - Intangible Assets and Goodwill - Summary of Detailed Information About Intangible Assets (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/IntangibleAssetsAndGoodwillSummaryOfDetailedInformationAboutIntangibleAssetsDetail</Role>
      <ShortName>Intangible Assets and Goodwill - Summary of Detailed Information About Intangible Assets (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>75710 - Disclosure - Intangible Assets and Goodwill - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/IntangibleAssetsAndGoodwillAdditionalInformationDetail</Role>
      <ShortName>Intangible Assets and Goodwill - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>64</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>75720 - Disclosure - Intangible Assets and Goodwill - Summary of  the Goodwill Breakdown by CGU (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/IntangibleAssetsAndGoodwillSummaryOfTheGoodwillBreakdownByCguDetail</Role>
      <ShortName>Intangible Assets and Goodwill - Summary of  the Goodwill Breakdown by CGU (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>75740 - Disclosure - Financial Assets and Financial Liabilities - Summary of Current and non-current financial assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureFinancialAssetsAndFinancialLiabilitiesSummaryOfCurrentAndNoncurrentFinancialAssetsDetails</Role>
      <ShortName>Financial Assets and Financial Liabilities - Summary of Current and non-current financial assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>66</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>75750 - Disclosure - Financial Assets and Financial Liabilities - Summary of Current and non-current financial assets (Parenthetical) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureFinancialAssetsAndFinancialLiabilitiesSummaryOfCurrentAndNoncurrentFinancialAssetsParentheticalDetails</Role>
      <ShortName>Financial Assets and Financial Liabilities - Summary of Current and non-current financial assets (Parenthetical) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>67</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>75760 - Disclosure - Financial Assets and Financial Liabilities - Summary of Financial assets by class and category (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureFinancialAssetsAndFinancialLiabilitiesSummaryOfFinancialAssetsByClassAndCategoryDetails</Role>
      <ShortName>Financial Assets and Financial Liabilities - Summary of Financial assets by class and category (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>68</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>75770 - Disclosure - Financial Assets and Financial Liabilities - Summary Of Loans And Borrowings (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureFinancialAssetsAndFinancialLiabilitiesSummaryOfLoansAndBorrowingsDetail</Role>
      <ShortName>Financial Assets and Financial Liabilities - Summary Of Loans And Borrowings (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>69</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>75780 - Disclosure - Financial Assets and Financial Liabilities - Summary Of Details Of Loan And Borrowings (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureFinancialAssetsAndFinancialLiabilitiesSummaryOfDetailsOfLoanAndBorrowingsDetail</Role>
      <ShortName>Financial Assets and Financial Liabilities - Summary Of Details Of Loan And Borrowings (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>70</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>75790 - Disclosure - Financial Assets and Financial Liabilities - Summary Of Details Of The Maturities, By Year, Of The Principals And Interest (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureFinancialAssetsAndFinancialLiabilitiesSummaryOfDetailsOfTheMaturitiesByYearOfThePrincipalsAndInterestDetail</Role>
      <ShortName>Financial Assets and Financial Liabilities - Summary Of Details Of The Maturities, By Year, Of The Principals And Interest (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>71</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>75800 - Disclosure - Financial Assets and Financial Liabilities - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureFinancialAssetsAndFinancialLiabilitiesAdditionalInformationDetail</Role>
      <ShortName>Financial Assets and Financial Liabilities - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>72</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>75810 - Disclosure - Financial Assets and Financial Liabilities - Summary Of Movement In The Derivative Warrant Liabilities (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureFinancialAssetsAndFinancialLiabilitiesSummaryOfMovementInTheDerivativeWarrantLiabilitiesDetail</Role>
      <ShortName>Financial Assets and Financial Liabilities - Summary Of Movement In The Derivative Warrant Liabilities (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>73</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>75820 - Disclosure - Financial Assets and Financial Liabilities - Summary Of Reconciliation Of Movements Of Liabilities To Cash Flows (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureFinancialAssetsAndFinancialLiabilitiesSummaryOfReconciliationOfMovementsOfLiabilitiesToCashFlowsDetail</Role>
      <ShortName>Financial Assets and Financial Liabilities - Summary Of Reconciliation Of Movements Of Liabilities To Cash Flows (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>74</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>75830 - Disclosure - Financial Assets and Financial Liabilities - Summary Of Trade And Other Financial Payables (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureFinancialAssetsAndFinancialLiabilitiesSummaryOfTradeAndOtherFinancialPayablesDetail</Role>
      <ShortName>Financial Assets and Financial Liabilities - Summary Of Trade And Other Financial Payables (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>75</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>75840 - Disclosure - Financial Assets and Financial Liabilities - Summary of Trade Payables Subject to Supplier Finance Arrangements (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureFinancialAssetsAndFinancialLiabilitiesSummaryOfTradePayablesSubjectToSupplierFinanceArrangementsDetails</Role>
      <ShortName>Financial Assets and Financial Liabilities - Summary of Trade Payables Subject to Supplier Finance Arrangements (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>76</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>75860 - Disclosure - Inventories-Summary Of Inventories (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/InventoriesSummaryOfInventoriesDetail</Role>
      <ShortName>Inventories-Summary Of Inventories (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>77</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>75870 - Disclosure - Inventories-Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/InventoriesAdditionalInformationDetail</Role>
      <ShortName>Inventories-Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>78</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R79.htm</HtmlFileName>
      <LongName>75880 - Disclosure - Cash and Cash Equivalents - Disclosure Of Detailed Information About Cash And Cash Equivalents (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/CashAndCashEquivalentsDisclosureOfDetailedInformationAboutCashAndCashEquivalentsDetail</Role>
      <ShortName>Cash and Cash Equivalents - Disclosure Of Detailed Information About Cash And Cash Equivalents (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>79</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R80.htm</HtmlFileName>
      <LongName>75890 - Disclosure - Cash and Cash Equivalents - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureCashAndCashEquivalentsAdditionalInformationDetails</Role>
      <ShortName>Cash and Cash Equivalents - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>80</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R81.htm</HtmlFileName>
      <LongName>75900 - Disclosure - Cash and Cash Equivalents - Disclosure Of Details of banks and other credit institutions, foreign currency, Geographical Areas (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureCashAndCashEquivalentsDisclosureOfDetailsOfBanksAndOtherCreditInstitutionsForeignCurrencyGeographicalAreasDetail</Role>
      <ShortName>Cash and Cash Equivalents - Disclosure Of Details of banks and other credit institutions, foreign currency, Geographical Areas (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>81</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R82.htm</HtmlFileName>
      <LongName>75920 - Disclosure - Capital and Reserves - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/CapitalAndReservesAdditionalInformationDetail</Role>
      <ShortName>Capital and Reserves - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>82</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R83.htm</HtmlFileName>
      <LongName>75930 - Disclosure - Capital and Reserves - Summary Of Authorized Share Capital (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/CapitalAndReservesSummaryOfAuthorizedShareCapitalDetail</Role>
      <ShortName>Capital and Reserves - Summary Of Authorized Share Capital (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>83</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R84.htm</HtmlFileName>
      <LongName>75940 - Disclosure - Capital and Reserves - Summary of Movement of Share Capital And Share Premium (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/CapitalAndReservesSummaryOfMovementOfShareCapitalAndSharePremiumDetail</Role>
      <ShortName>Capital and Reserves - Summary of Movement of Share Capital And Share Premium (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>84</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R85.htm</HtmlFileName>
      <LongName>75950 - Disclosure - Provisions - Summary of Detailed Information of Provision (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/ProvisionsSummaryOfDetailedInformationOfProvisionDetail</Role>
      <ShortName>Provisions - Summary of Detailed Information of Provision (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>85</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R86.htm</HtmlFileName>
      <LongName>75960 - Disclosure - Provisions - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureProvisionsAdditionalInformationDetail</Role>
      <ShortName>Provisions - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>86</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R87.htm</HtmlFileName>
      <LongName>75970 - Disclosure - Government Grants - Summary of Details of Government Grants (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/GovernmentGrantsSummaryOfDetailsOfGovernmentGrantsDetail</Role>
      <ShortName>Government Grants - Summary of Details of Government Grants (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>87</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R88.htm</HtmlFileName>
      <LongName>75980 - Disclosure - Government Grants - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/GovernmentGrantsAdditionalInformationDetail</Role>
      <ShortName>Government Grants - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>88</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R89.htm</HtmlFileName>
      <LongName>75990 - Disclosure - Revenue from Contracts with Customers - Summary of Revenues Based on Product Lines (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/RevenueFromContractsWithCustomersSummaryOfRevenuesBasedOnProductLinesDetail</Role>
      <ShortName>Revenue from Contracts with Customers - Summary of Revenues Based on Product Lines (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>89</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R90.htm</HtmlFileName>
      <LongName>76010 - Disclosure - Revenue from Contracts with Customers - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/RevenueFromContractsWithCustomersAdditionalInformationDetail</Role>
      <ShortName>Revenue from Contracts with Customers - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>90</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R91.htm</HtmlFileName>
      <LongName>76020 - Disclosure - Expenses - Summary of Changes in Inventories and Raw Materials and Consumables Used (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureExpensesSummaryOfChangesInInventoriesAndRawMaterialsAndConsumablesUsedDetail</Role>
      <ShortName>Expenses - Summary of Changes in Inventories and Raw Materials and Consumables Used (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>91</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R92.htm</HtmlFileName>
      <LongName>76030 - Disclosure - Expenses - Summary of Operating Expenses (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureExpensesSummaryOfOperatingExpensesDetail</Role>
      <ShortName>Expenses - Summary of Operating Expenses (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>92</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R93.htm</HtmlFileName>
      <LongName>76040 - Disclosure - Expenses - Net Other Income (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureExpensesNetOtherIncomeDetails</Role>
      <ShortName>Expenses - Net Other Income (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>93</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R94.htm</HtmlFileName>
      <LongName>76060 - Disclosure - Employee Benefits - Summary of Employee Benefits (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfEmployeeBenefitsDetails</Role>
      <ShortName>Employee Benefits - Summary of Employee Benefits (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>94</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R95.htm</HtmlFileName>
      <LongName>76070 - Disclosure - Employee Benefits - Summary of Personnel Expenses Recognized for Share-based Payment Transactions (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/EmployeeBenefitsSummaryOfPersonnelExpensesRecognizedForShareBasedPaymentTransactionsDetail</Role>
      <ShortName>Employee Benefits - Summary of Personnel Expenses Recognized for Share-based Payment Transactions (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>95</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R96.htm</HtmlFileName>
      <LongName>76080 - Disclosure - Employee Benefits - Summary of Movements in Stock Options Until The Transaction Date (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/EmployeeBenefitsSummaryOfMovementsInStockOptionsUntilTheTransactionDateDetail</Role>
      <ShortName>Employee Benefits - Summary of Movements in Stock Options Until The Transaction Date (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>96</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R97.htm</HtmlFileName>
      <LongName>76090 - Disclosure - Employee Benefits - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/EmployeeBenefitsAdditionalInformationDetail</Role>
      <ShortName>Employee Benefits - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>97</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R98.htm</HtmlFileName>
      <LongName>76100 - Disclosure - Financial Income and Expenses - Summary Of Details About Financial Income Expenses Net (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/FinancialIncomeAndExpensesSummaryOfDetailsAboutFinancialIncomeExpensesNetDetail</Role>
      <ShortName>Financial Income and Expenses - Summary Of Details About Financial Income Expenses Net (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>98</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R99.htm</HtmlFileName>
      <LongName>76110 - Disclosure - Loss Per Share - Summary Of Basic And Diluted Loss Per Share (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureLossPerShareSummaryOfBasicAndDilutedLossPerShareDetail</Role>
      <ShortName>Loss Per Share - Summary Of Basic And Diluted Loss Per Share (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>99</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R100.htm</HtmlFileName>
      <LongName>76120 - Disclosure - Tax-related balances - Summary Of Tax Credit And Other Receivables Payables (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureTaxrelatedBalancesSummaryOfTaxCreditAndOtherReceivablesPayablesDetail</Role>
      <ShortName>Tax-related balances - Summary Of Tax Credit And Other Receivables Payables (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>100</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R101.htm</HtmlFileName>
      <LongName>76130 - Disclosure - Tax-related balances - Summary Of Income Tax Credit Recognized In Profit Loss (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureTaxrelatedBalancesSummaryOfIncomeTaxCreditRecognizedInProfitLossDetail</Role>
      <ShortName>Tax-related balances - Summary Of Income Tax Credit Recognized In Profit Loss (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>101</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R102.htm</HtmlFileName>
      <LongName>76140 - Disclosure - Tax-related balances - Summary Of Information About Offset Of Unrecognized Tax Losses (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureTaxrelatedBalancesSummaryOfInformationAboutOffsetOfUnrecognizedTaxLossesDetail</Role>
      <ShortName>Tax-related balances - Summary Of Information About Offset Of Unrecognized Tax Losses (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>102</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R103.htm</HtmlFileName>
      <LongName>76150 - Disclosure - Tax-related balances - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureTaxrelatedBalancesAdditionalInformationDetail</Role>
      <ShortName>Tax-related balances - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>103</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R104.htm</HtmlFileName>
      <LongName>76160 - Disclosure - Related Party Disclosures - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureRelatedPartyDisclosuresAdditionalInformationDetail</Role>
      <ShortName>Related Party Disclosures - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>104</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R105.htm</HtmlFileName>
      <LongName>76170 - Disclosure - Related Party Disclosures - Summary Of Transactions And Balances With Related Parties (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureRelatedPartyDisclosuresSummaryOfTransactionsAndBalancesWithRelatedPartiesDetail</Role>
      <ShortName>Related Party Disclosures - Summary Of Transactions And Balances With Related Parties (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>105</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R106.htm</HtmlFileName>
      <LongName>76180 - Disclosure - Related Party Disclosures - Summary Of Remuneration Expenses Recorded For The Members Of Board (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureRelatedPartyDisclosuresSummaryOfRemunerationExpensesRecordedForTheMembersOfBoardDetail</Role>
      <ShortName>Related Party Disclosures - Summary Of Remuneration Expenses Recorded For The Members Of Board (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>106</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R107.htm</HtmlFileName>
      <LongName>76190 - Disclosure - Related Party Disclosures - Summary Of Transactions And Balances With Related Parties (Directors And Senior Management) (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureRelatedPartyDisclosuresSummaryOfTransactionsAndBalancesWithRelatedPartiesDirectorsAndSeniorManagementDetail</Role>
      <ShortName>Related Party Disclosures - Summary Of Transactions And Balances With Related Parties (Directors And Senior Management) (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>107</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R108.htm</HtmlFileName>
      <LongName>76200 - Disclosure - Financial Risk Management - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/FinancialRiskManagementAdditionalInformationDetail</Role>
      <ShortName>Financial Risk Management - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>108</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R109.htm</HtmlFileName>
      <LongName>76210 - Disclosure - Financial Risk Management - Summary of Credit Risk (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/FinancialRiskManagementSummaryOfCreditRiskDetail</Role>
      <ShortName>Financial Risk Management - Summary of Credit Risk (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>109</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R110.htm</HtmlFileName>
      <LongName>76220 - Disclosure - Financial Risk Management - Summary of Interest Rate Risk, Group Loans and Borrowings Balance (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureFinancialRiskManagementSummaryOfInterestRateRiskGroupLoansAndBorrowingsBalanceDetail</Role>
      <ShortName>Financial Risk Management - Summary of Interest Rate Risk, Group Loans and Borrowings Balance (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>110</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R111.htm</HtmlFileName>
      <LongName>76230 - Disclosure - Financial Risk Management - Summary of Effect of Interest Rates (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/FinancialRiskManagementSummaryOfEffectOfInterestRatesDetail</Role>
      <ShortName>Financial Risk Management - Summary of Effect of Interest Rates (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>111</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R112.htm</HtmlFileName>
      <LongName>76240 - Disclosure - Financial Risk Management - Summary of Impact of a Reasonably Possible Strengthening (Weakening) (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureFinancialRiskManagementSummaryOfImpactOfAReasonablyPossibleStrengtheningWeakeningDetail</Role>
      <ShortName>Financial Risk Management - Summary of Impact of a Reasonably Possible Strengthening (Weakening) (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>112</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R113.htm</HtmlFileName>
      <LongName>76250 - Disclosure - Financial Risk Management - Summary of Liquidity Risk (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/FinancialRiskManagementSummaryOfLiquidityRiskDetail</Role>
      <ShortName>Financial Risk Management - Summary of Liquidity Risk (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>113</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R114.htm</HtmlFileName>
      <LongName>76260 - Disclosure - Financial Risk Management - Summary of Maturity Analysis for Derivative Financial Liabilities (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/FinancialRiskManagementSummaryOfMaturityAnalysisForDerivativeFinancialLiabilitiesDetail</Role>
      <ShortName>Financial Risk Management - Summary of Maturity Analysis for Derivative Financial Liabilities (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>114</Position>
    </Report>
    <Report instance="wbx-20260630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R115.htm</HtmlFileName>
      <LongName>76280 - Disclosure - Detail of Wallbox Group subsidiaries - Summary Of Details of Wallbox Group Subsidiaries (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://wallbox.com/20260630/taxonomy/role/DisclosureDetailOfWallboxGroupSubsidiariesSummaryOfDetailsOfWallboxGroupSubsidiariesDetail</Role>
      <ShortName>Detail of Wallbox Group subsidiaries - Summary Of Details of Wallbox Group Subsidiaries (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>115</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" original="wbx-20260630.htm">wbx-20260630.htm</File>
    <File doctype="6-K" isDefinitelyFs="true" isIfrs="true" original="wbx-ex99_2.htm">wbx-ex99_2.htm</File>
    <File>wbx-20260630.xsd</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy items="14">http://xbrl.sec.gov/dei/2025</BaseTaxonomy>
    <BaseTaxonomy items="1367">https://xbrl.ifrs.org/taxonomy/2025-03-27/ifrs-full</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>false</HasPresentationLinkbase>
  <HasCalculationLinkbase>false</HasCalculationLinkbase>
</FilingSummary>
