<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.26.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>325</ContextCount>
  <ElementCount>550</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>126</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>14</UnitCount>
  <MyReports>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>995200090 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DocumentDocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>995200100 - Statement - CONSOLIDATED BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/StatementConsolidatedBalanceSheets</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>995200105 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/StatementConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>995200200 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/StatementConsolidatedStatementsOfComprehensiveIncome</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>995200205 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/StatementConsolidatedStatementsOfComprehensiveIncomeParenthetical</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>995200300 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/StatementConsolidatedStatementsOfChangesInShareholdersEquity</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>995200305 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/StatementConsolidatedStatementsOfChangesInShareholdersEquityParenthetical</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>995200400 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/StatementConsolidatedStatementsOfCashFlows</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CASH FLOWS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>995210101 - Disclosure - Organization and principal activities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureOrganizationAndPrincipalActivities</Role>
      <ShortName>Organization and principal activities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>995210201 - Disclosure - Principal accounting policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosurePrincipalAccountingPolicies</Role>
      <ShortName>Principal accounting policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>995210301 - Disclosure - Certain risks</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureCertainRisks</Role>
      <ShortName>Certain risks</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>995210401 - Disclosure - Cash and cash equivalents</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureCashAndCashEquivalents</Role>
      <ShortName>Cash and cash equivalents</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>995210501 - Disclosure - Restricted cash</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureRestrictedCash</Role>
      <ShortName>Restricted cash</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>995210601 - Disclosure - Short-term deposits and long-term deposits</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureShortTermDepositsAndLongTermDeposits</Role>
      <ShortName>Short-term deposits and long-term deposits</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>995210701 - Disclosure - Accounts receivable, net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureAccountsReceivableNet</Role>
      <ShortName>Accounts receivable, net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>995210801 - Disclosure - Prepayments and other current assets, net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosurePrepaymentsAndOtherCurrentAssetsNet</Role>
      <ShortName>Prepayments and other current assets, net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>995210901 - Disclosure - Investments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureInvestments</Role>
      <ShortName>Investments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>995211001 - Disclosure - Goodwill</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureGoodwill</Role>
      <ShortName>Goodwill</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>995211101 - Disclosure - Property and equipment, net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosurePropertyAndEquipmentNet</Role>
      <ShortName>Property and equipment, net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>995211201 - Disclosure - Intangible assets, net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureIntangibleAssetsNet</Role>
      <ShortName>Intangible assets, net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>995211301 - Disclosure - Prepayments and other non-current assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosurePrepaymentsAndOtherNonCurrentAssets</Role>
      <ShortName>Prepayments and other non-current assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>995211401 - Disclosure - Advances from customers and deferred revenue</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureAdvancesFromCustomersAndDeferredRevenue</Role>
      <ShortName>Advances from customers and deferred revenue</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>995211501 - Disclosure - Accrued liabilities and other current liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureAccruedLiabilitiesAndOtherCurrentLiabilities</Role>
      <ShortName>Accrued liabilities and other current liabilities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>995211601 - Disclosure - Cost of revenues</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureCostOfRevenues</Role>
      <ShortName>Cost of revenues</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>995211701 - Disclosure - Other income, net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureOtherIncomeNet</Role>
      <ShortName>Other income, net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>995211801 - Disclosure - Taxation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureTaxation</Role>
      <ShortName>Taxation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>995211901 - Disclosure - Ordinary shares</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureOrdinaryShares</Role>
      <ShortName>Ordinary shares</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>27</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>995212001 - Disclosure - Share-based compensation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureShareBasedCompensation</Role>
      <ShortName>Share-based compensation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>28</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>995212101 - Disclosure - Net loss per share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureNetLossPerShare</Role>
      <ShortName>Net loss per share</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>29</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>995212201 - Disclosure - Related party transactions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureRelatedPartyTransactions</Role>
      <ShortName>Related party transactions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>30</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>995212301 - Disclosure - Fair value measurements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureFairValueMeasurements</Role>
      <ShortName>Fair value measurements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>31</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>995212401 - Disclosure - Leases</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureLeases</Role>
      <ShortName>Leases</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>32</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>995212501 - Disclosure - Commitments and contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureCommitmentsAndContingencies</Role>
      <ShortName>Commitments and contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>33</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>995212601 - Disclosure - Subsequent events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureSubsequentEvents</Role>
      <ShortName>Subsequent events</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>34</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>995212701 - Disclosure - Restricted net assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureRestrictedNetAssets</Role>
      <ShortName>Restricted net assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>35</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>995410 - Disclosure - Pay vs Performance Disclosure</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/PvpDisclosure</Role>
      <ShortName>Pay vs Performance Disclosure</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>36</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>995447 - Disclosure - Insider Trading Policies and Procedures</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/InsiderTradingPoliciesProc</Role>
      <ShortName>Insider Trading Policies and Procedures</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>37</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>995550 - Disclosure - Cybersecurity Risk Management and Strategy Disclosure</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/cyd/role/CybersecurityRiskManagementAndStrategyDisclosure</Role>
      <ShortName>Cybersecurity Risk Management and Strategy Disclosure</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>38</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>99920202 - Disclosure - Principal accounting policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosurePrincipalAccountingPoliciesPolicies</Role>
      <ShortName>Principal accounting policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <Position>39</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>99930103 - Disclosure - Organization and principal activities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureOrganizationAndPrincipalActivitiesTables</Role>
      <ShortName>Organization and principal activities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureOrganizationAndPrincipalActivities</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>99930203 - Disclosure - Principal accounting policies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosurePrincipalAccountingPoliciesTables</Role>
      <ShortName>Principal accounting policies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosurePrincipalAccountingPolicies</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>99930403 - Disclosure - Cash and cash equivalents (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureCashAndCashEquivalentsTables</Role>
      <ShortName>Cash and cash equivalents (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureCashAndCashEquivalents</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>99930603 - Disclosure - Short-term deposits and long-term deposits (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureShortTermDepositsAndLongTermDepositsTables</Role>
      <ShortName>Short-term deposits and long-term deposits (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureShortTermDepositsAndLongTermDeposits</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>99930703 - Disclosure - Accounts receivable, net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureAccountsReceivableNetTables</Role>
      <ShortName>Accounts receivable, net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureAccountsReceivableNet</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>99930803 - Disclosure - Prepayments and other current assets, net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosurePrepaymentsAndOtherCurrentAssetsNetTables</Role>
      <ShortName>Prepayments and other current assets, net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosurePrepaymentsAndOtherCurrentAssetsNet</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>99930903 - Disclosure - Investments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureInvestmentsTables</Role>
      <ShortName>Investments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureInvestments</ParentRole>
      <Position>46</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>99931003 - Disclosure - Goodwill (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureGoodwillTables</Role>
      <ShortName>Goodwill (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureGoodwill</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>99931103 - Disclosure - Property and equipment, net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosurePropertyAndEquipmentNetTables</Role>
      <ShortName>Property and equipment, net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosurePropertyAndEquipmentNet</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>99931203 - Disclosure - Intangible assets, net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureIntangibleAssetsNetTables</Role>
      <ShortName>Intangible assets, net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureIntangibleAssetsNet</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>99931303 - Disclosure - Prepayments and other non-current assets (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosurePrepaymentsAndOtherNonCurrentAssetsTables</Role>
      <ShortName>Prepayments and other non-current assets (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosurePrepaymentsAndOtherNonCurrentAssets</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>99931403 - Disclosure - Advances from customers and deferred revenue (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureAdvancesFromCustomersAndDeferredRevenueTables</Role>
      <ShortName>Advances from customers and deferred revenue (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureAdvancesFromCustomersAndDeferredRevenue</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>99931503 - Disclosure - Accrued Liabilities and Other Current Liabilities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureAccruedLiabilitiesAndOtherCurrentLiabilitiesTables</Role>
      <ShortName>Accrued Liabilities and Other Current Liabilities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <Position>52</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>99931603 - Disclosure - Cost of revenues (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureCostOfRevenuesTables</Role>
      <ShortName>Cost of revenues (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureCostOfRevenues</ParentRole>
      <Position>53</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>99931803 - Disclosure - Taxation (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureTaxationTables</Role>
      <ShortName>Taxation (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureTaxation</ParentRole>
      <Position>54</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>99932003 - Disclosure - Share-based compensation (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureShareBasedCompensationTables</Role>
      <ShortName>Share-based compensation (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureShareBasedCompensation</ParentRole>
      <Position>55</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>99932103 - Disclosure - Net loss per share (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureNetLossPerShareTables</Role>
      <ShortName>Net loss per share (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureNetLossPerShare</ParentRole>
      <Position>56</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>99932203 - Disclosure - Related party transactions (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureRelatedPartyTransactionsTables</Role>
      <ShortName>Related party transactions (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureRelatedPartyTransactions</ParentRole>
      <Position>57</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>99932303 - Disclosure - Fair value measurements (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureFairValueMeasurementsTables</Role>
      <ShortName>Fair value measurements (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureFairValueMeasurements</ParentRole>
      <Position>58</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>99932403 - Disclosure - Leases (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureLeasesTables</Role>
      <ShortName>Leases (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureLeases</ParentRole>
      <Position>59</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>99932503 - Disclosure - Commitments and contingencies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureCommitmentsAndContingenciesTables</Role>
      <ShortName>Commitments and contingencies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureCommitmentsAndContingencies</ParentRole>
      <Position>60</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>99940101 - Disclosure - Organization and principal activities - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureOrganizationAndPrincipalActivitiesAdditionalInformationDetails</Role>
      <ShortName>Organization and principal activities - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>61</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>99940102 - Disclosure - Organization and principal activities - Schedule of Details of the Subsidiaries, VIEs and VIE's Subsidiaries (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureOrganizationAndPrincipalActivitiesScheduleOfDetailsOfSubsidiariesViesAndVieSSubsidiariesDetails</Role>
      <ShortName>Organization and principal activities - Schedule of Details of the Subsidiaries, VIEs and VIE's Subsidiaries (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>62</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>99940103 - Disclosure - Organization and principal activities - Schedule of Condensed Consolidated Balance Sheets Data for the VIEs (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureOrganizationAndPrincipalActivitiesScheduleOfCondensedConsolidatedBalanceSheetsDataForViesDetails</Role>
      <ShortName>Organization and principal activities - Schedule of Condensed Consolidated Balance Sheets Data for the VIEs (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>99940104 - Disclosure - Organization and principal activities - Schedule of Condensed Consolidated Statements of Operation Data for the VIEs (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureOrganizationAndPrincipalActivitiesScheduleOfCondensedConsolidatedStatementsOfOperationDataForViesDetails</Role>
      <ShortName>Organization and principal activities - Schedule of Condensed Consolidated Statements of Operation Data for the VIEs (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>64</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>99940105 - Disclosure - Organization and principal activities - Schedule of Condensed Consolidated Cash Flows Data for the VIEs (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureOrganizationAndPrincipalActivitiesScheduleOfCondensedConsolidatedCashFlowsDataForViesDetails</Role>
      <ShortName>Organization and principal activities - Schedule of Condensed Consolidated Cash Flows Data for the VIEs (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>99940106 - Disclosure - Organization and principal activities - Schedule of Condensed Consolidated Statements Data for the VIEs (Parenthetical) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureOrganizationAndPrincipalActivitiesScheduleOfCondensedConsolidatedStatementsDataForViesParentheticalDetails</Role>
      <ShortName>Organization and principal activities - Schedule of Condensed Consolidated Statements Data for the VIEs (Parenthetical) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>66</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>99940201 - Disclosure - Principal accounting policies - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosurePrincipalAccountingPoliciesAdditionalInformationDetails</Role>
      <ShortName>Principal accounting policies - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>67</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>99940202 - Disclosure - Principal accounting policies - Business combination under common control (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosurePrincipalAccountingPoliciesBusinessCombinationUnderCommonControlDetails</Role>
      <ShortName>Principal accounting policies - Business combination under common control (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>68</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>99940203 - Disclosure - Principal accounting policies - Schedule of Property and Equipment Estimated Useful Lives and Residual Rate (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosurePrincipalAccountingPoliciesScheduleOfPropertyAndEquipmentEstimatedUsefulLivesAndResidualRateDetails</Role>
      <ShortName>Principal accounting policies - Schedule of Property and Equipment Estimated Useful Lives and Residual Rate (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>69</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>99940204 - Disclosure - Principal accounting policies - Schedule of Amortization of Finite-Lived Intangible Assets Computed Using the Straight-Line Method Over the Following Estimated Useful Lives (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosurePrincipalAccountingPoliciesScheduleOfAmortizationOfFiniteLivedIntangibleAssetsComputedUsingStraightLineMethodOverFollowingEstimatedUsefulLivesDetails</Role>
      <ShortName>Principal accounting policies - Schedule of Amortization of Finite-Lived Intangible Assets Computed Using the Straight-Line Method Over the Following Estimated Useful Lives (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>70</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>99940205 - Disclosure - Principal accounting policies - Disaggregation of Revenue (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosurePrincipalAccountingPoliciesDisaggregationOfRevenueDetails</Role>
      <ShortName>Principal accounting policies - Disaggregation of Revenue (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>71</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>99940206 - Disclosure - Principal accounting policies - Summary of Revenue Related to Performance Obligation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosurePrincipalAccountingPoliciesSummaryOfRevenueRelatedToPerformanceObligationDetails</Role>
      <ShortName>Principal accounting policies - Summary of Revenue Related to Performance Obligation (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>72</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>99940207 - Disclosure - Principal accounting policies - Segment Reporting (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosurePrincipalAccountingPoliciesSegmentReportingDetails</Role>
      <ShortName>Principal accounting policies - Segment Reporting (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>73</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>99940301 - Disclosure - Certain risks (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureCertainRisksDetails</Role>
      <ShortName>Certain risks (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureCertainRisks</ParentRole>
      <Position>74</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>99940401 - Disclosure - Cash and cash equivalents - Schedule of Cash and Cash Equivalents Balance (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureCashAndCashEquivalentsScheduleOfCashAndCashEquivalentsBalanceDetails</Role>
      <ShortName>Cash and cash equivalents - Schedule of Cash and Cash Equivalents Balance (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>75</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>99940501 - Disclosure - Restricted cash (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureRestrictedCashDetails</Role>
      <ShortName>Restricted cash (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureRestrictedCash</ParentRole>
      <Position>76</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>99940601 - Disclosure - Short-term deposits and long-term deposits (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureShortTermDepositsAndLongTermDepositsDetails</Role>
      <ShortName>Short-term deposits and long-term deposits (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureShortTermDepositsAndLongTermDepositsTables</ParentRole>
      <Position>77</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>99940701 - Disclosure - Accounts receivable, net - (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureAccountsReceivableNetDetails</Role>
      <ShortName>Accounts receivable, net - (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureAccountsReceivableNetTables</ParentRole>
      <Position>78</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R79.htm</HtmlFileName>
      <LongName>99940702 - Disclosure - Accounts receivable, net - Credit loss provision (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureAccountsReceivableNetCreditLossProvisionDetails</Role>
      <ShortName>Accounts receivable, net - Credit loss provision (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>79</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R80.htm</HtmlFileName>
      <LongName>99940801 - Disclosure - Prepayments and other current assets, net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosurePrepaymentsAndOtherCurrentAssetsNetDetails</Role>
      <ShortName>Prepayments and other current assets, net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosurePrepaymentsAndOtherCurrentAssetsNetTables</ParentRole>
      <Position>80</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R81.htm</HtmlFileName>
      <LongName>99940901 - Disclosure - Investments - Schedule of Investments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureInvestmentsScheduleOfInvestmentsDetails</Role>
      <ShortName>Investments - Schedule of Investments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>81</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R82.htm</HtmlFileName>
      <LongName>99940902 - Disclosure - Investments - Schedule of Investments (Parenthetical) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureInvestmentsScheduleOfInvestmentsParentheticalDetails</Role>
      <ShortName>Investments - Schedule of Investments (Parenthetical) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>82</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R83.htm</HtmlFileName>
      <LongName>99941001 - Disclosure - Goodwill - Changes in carrying amount of goodwill (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureGoodwillChangesInCarryingAmountOfGoodwillDetails</Role>
      <ShortName>Goodwill - Changes in carrying amount of goodwill (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>83</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R84.htm</HtmlFileName>
      <LongName>99941002 - Disclosure - Goodwill (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureGoodwillDetails</Role>
      <ShortName>Goodwill (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureGoodwillTables</ParentRole>
      <Position>84</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R85.htm</HtmlFileName>
      <LongName>99941101 - Disclosure - Property and equipment, net - Schedule of Property and equipment (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosurePropertyAndEquipmentNetScheduleOfPropertyAndEquipmentDetails</Role>
      <ShortName>Property and equipment, net - Schedule of Property and equipment (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>85</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R86.htm</HtmlFileName>
      <LongName>99941102 - Disclosure - Property and equipment, net - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosurePropertyAndEquipmentNetAdditionalInformationDetails</Role>
      <ShortName>Property and equipment, net - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>86</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R87.htm</HtmlFileName>
      <LongName>99941201 - Disclosure - Intangible assets, net - Summary of Group's Intangible Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureIntangibleAssetsNetSummaryOfGroupSIntangibleAssetsDetails</Role>
      <ShortName>Intangible assets, net - Summary of Group's Intangible Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>87</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R88.htm</HtmlFileName>
      <LongName>99941202 - Disclosure - Intangible assets, net - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureIntangibleAssetsNetAdditionalInformationDetails</Role>
      <ShortName>Intangible assets, net - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>88</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R89.htm</HtmlFileName>
      <LongName>99941203 - Disclosure - Intangible assets, net - Schedule of Estimated Amortization Expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureIntangibleAssetsNetScheduleOfEstimatedAmortizationExpensesDetails</Role>
      <ShortName>Intangible assets, net - Schedule of Estimated Amortization Expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>89</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R90.htm</HtmlFileName>
      <LongName>99941301 - Disclosure - Prepayments and other non-current assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosurePrepaymentsAndOtherNonCurrentAssetsDetails</Role>
      <ShortName>Prepayments and other non-current assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosurePrepaymentsAndOtherNonCurrentAssetsTables</ParentRole>
      <Position>90</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R91.htm</HtmlFileName>
      <LongName>99941401 - Disclosure - Advances from customers and deferred revenue (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureAdvancesFromCustomersAndDeferredRevenueDetails</Role>
      <ShortName>Advances from customers and deferred revenue (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureAdvancesFromCustomersAndDeferredRevenueTables</ParentRole>
      <Position>91</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R92.htm</HtmlFileName>
      <LongName>99941501 - Disclosure - Accrued liabilities and other current liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureAccruedLiabilitiesAndOtherCurrentLiabilitiesDetails</Role>
      <ShortName>Accrued liabilities and other current liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureAccruedLiabilitiesAndOtherCurrentLiabilities</ParentRole>
      <Position>92</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R93.htm</HtmlFileName>
      <LongName>99941601 - Disclosure - Cost of revenues (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureCostOfRevenuesDetails</Role>
      <ShortName>Cost of revenues (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureCostOfRevenuesTables</ParentRole>
      <Position>93</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R94.htm</HtmlFileName>
      <LongName>99941701 - Disclosure - Other income, net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureOtherIncomeNetDetails</Role>
      <ShortName>Other income, net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureOtherIncomeNet</ParentRole>
      <Position>94</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R95.htm</HtmlFileName>
      <LongName>99941801 - Disclosure - Taxation - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureTaxationAdditionalInformationDetails</Role>
      <ShortName>Taxation - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>95</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R96.htm</HtmlFileName>
      <LongName>99941802 - Disclosure - Taxation - Schedule of loss before income tax expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureTaxationScheduleOfLossBeforeIncomeTaxExpensesDetails</Role>
      <ShortName>Taxation - Schedule of loss before income tax expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>96</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R97.htm</HtmlFileName>
      <LongName>99941803 - Disclosure - Taxation - Schedule of current and deferred portion of income tax expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureTaxationScheduleOfCurrentAndDeferredPortionOfIncomeTaxExpensesDetails</Role>
      <ShortName>Taxation - Schedule of current and deferred portion of income tax expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>97</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R98.htm</HtmlFileName>
      <LongName>99941804 - Disclosure - Taxation - Reconciliation of the differences between statutory tax rate and the effective tax rate (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureTaxationReconciliationOfDifferencesBetweenStatutoryTaxRateAndEffectiveTaxRateDetails</Role>
      <ShortName>Taxation - Reconciliation of the differences between statutory tax rate and the effective tax rate (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>98</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R99.htm</HtmlFileName>
      <LongName>99941805 - Disclosure - Taxation - Income taxes paid (net of refunds) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureTaxationIncomeTaxesPaidNetOfRefundsDetails</Role>
      <ShortName>Taxation - Income taxes paid (net of refunds) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>99</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R100.htm</HtmlFileName>
      <LongName>99941806 - Disclosure - Taxation - Schedule of tax effects of temporary differences that give rise to the deferred tax asset balances (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureTaxationScheduleOfTaxEffectsOfTemporaryDifferencesThatGiveRiseToDeferredTaxAssetBalancesDetails</Role>
      <ShortName>Taxation - Schedule of tax effects of temporary differences that give rise to the deferred tax asset balances (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>100</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R101.htm</HtmlFileName>
      <LongName>99941807 - Disclosure - Taxation - Schedule of movement of valuation allowance (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureTaxationScheduleOfMovementOfValuationAllowanceDetails</Role>
      <ShortName>Taxation - Schedule of movement of valuation allowance (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>101</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R102.htm</HtmlFileName>
      <LongName>99941901 - Disclosure - Ordinary shares (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureOrdinarySharesDetails</Role>
      <ShortName>Ordinary shares (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureOrdinaryShares</ParentRole>
      <Position>102</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R103.htm</HtmlFileName>
      <LongName>99942001 - Disclosure - Share-based compensation - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureShareBasedCompensationAdditionalInformationDetails</Role>
      <ShortName>Share-based compensation - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>103</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R104.htm</HtmlFileName>
      <LongName>99942002 - Disclosure - Share-based compensation - Number of share options granted and their related weighted average exercise prices (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureShareBasedCompensationNumberOfShareOptionsGrantedAndTheirRelatedWeightedAverageExercisePricesDetails</Role>
      <ShortName>Share-based compensation - Number of share options granted and their related weighted average exercise prices (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>104</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R105.htm</HtmlFileName>
      <LongName>99942003 - Disclosure - Share-based compensation - Fair value of the share options as of the grant date (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureShareBasedCompensationFairValueOfShareOptionsAsOfGrantDateDetails</Role>
      <ShortName>Share-based compensation - Fair value of the share options as of the grant date (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>105</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R106.htm</HtmlFileName>
      <LongName>99942004 - Disclosure - Share-based compensation - Summary of the restricted share units activity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureShareBasedCompensationSummaryOfRestrictedShareUnitsActivityDetails</Role>
      <ShortName>Share-based compensation - Summary of the restricted share units activity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>106</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R107.htm</HtmlFileName>
      <LongName>99942101 - Disclosure - Net loss per share (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureNetLossPerShareDetails</Role>
      <ShortName>Net loss per share (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureNetLossPerShareTables</ParentRole>
      <Position>107</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R108.htm</HtmlFileName>
      <LongName>99942201 - Disclosure - Related party transactions - Schedule of Significant Related Party Transactions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureRelatedPartyTransactionsScheduleOfSignificantRelatedPartyTransactionsDetails</Role>
      <ShortName>Related party transactions - Schedule of Significant Related Party Transactions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>108</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R109.htm</HtmlFileName>
      <LongName>99942202 - Disclosure - Related party transactions - Schedule of Significant Related Party Transactions (Parenthetical) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureRelatedPartyTransactionsScheduleOfSignificantRelatedPartyTransactionsParentheticalDetails</Role>
      <ShortName>Related party transactions - Schedule of Significant Related Party Transactions (Parenthetical) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>109</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R110.htm</HtmlFileName>
      <LongName>99942203 - Disclosure - Related party transactions - Schedule of the Amounts Due from/to Related Parties (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureRelatedPartyTransactionsScheduleOfAmountsDueFromToRelatedPartiesDetails</Role>
      <ShortName>Related party transactions - Schedule of the Amounts Due from/to Related Parties (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>110</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R111.htm</HtmlFileName>
      <LongName>99942301 - Disclosure - Fair value measurements - Summary of Financial Instruments Measured or Disclosed at Fair Value on Recurring Basis (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureFairValueMeasurementsSummaryOfFinancialInstrumentsMeasuredOrDisclosedAtFairValueOnRecurringBasisDetails</Role>
      <ShortName>Fair value measurements - Summary of Financial Instruments Measured or Disclosed at Fair Value on Recurring Basis (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>111</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R112.htm</HtmlFileName>
      <LongName>99942302 - Disclosure - Fair value measurements - Roll forward of Level 3 investments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureFairValueMeasurementsRollForwardOfLevel3InvestmentsDetails</Role>
      <ShortName>Fair value measurements - Roll forward of Level 3 investments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>112</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R113.htm</HtmlFileName>
      <LongName>99942303 - Disclosure - Fair value measurements - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureFairValueMeasurementsAdditionalInformationDetails</Role>
      <ShortName>Fair value measurements - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>113</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R114.htm</HtmlFileName>
      <LongName>99942304 - Disclosure - Related party transactions - Schedule of Allowance for Credit Loss Provision Related to Amounts Due from Related Parties (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureRelatedPartyTransactionsScheduleOfAllowanceForCreditLossProvisionRelatedToAmountsDueFromRelatedPartiesDetails</Role>
      <ShortName>Related party transactions - Schedule of Allowance for Credit Loss Provision Related to Amounts Due from Related Parties (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>114</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R115.htm</HtmlFileName>
      <LongName>99942401 - Disclosure - Leases - Summary of Lease Cost (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureLeasesSummaryOfLeaseCostDetails</Role>
      <ShortName>Leases - Summary of Lease Cost (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>115</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R116.htm</HtmlFileName>
      <LongName>99942402 - Disclosure - Leases - Future Minimum Lease Payments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureLeasesFutureMinimumLeasePaymentsDetails</Role>
      <ShortName>Leases - Future Minimum Lease Payments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>116</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R117.htm</HtmlFileName>
      <LongName>99942403 - Disclosure - Leases - Summary of Operating Lease, Liability (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureLeasesSummaryOfOperatingLeaseLiabilityDetails</Role>
      <ShortName>Leases - Summary of Operating Lease, Liability (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>117</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R118.htm</HtmlFileName>
      <LongName>99942501 - Disclosure - Commitments and contingencies - Schedule of Future Minimum Payments Under Non-Cancelable Operating Agreements (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureCommitmentsAndContingenciesScheduleOfFutureMinimumPaymentsUnderNonCancelableOperatingAgreementsDetails</Role>
      <ShortName>Commitments and contingencies - Schedule of Future Minimum Payments Under Non-Cancelable Operating Agreements (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>118</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R119.htm</HtmlFileName>
      <LongName>99942502 - Disclosure - Commitments and contingencies - Capital And Other Commitments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureCommitmentsAndContingenciesCapitalAndOtherCommitmentsDetails</Role>
      <ShortName>Commitments and contingencies - Capital And Other Commitments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>119</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R120.htm</HtmlFileName>
      <LongName>99942503 - Disclosure - Commitments and contingencies - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetails</Role>
      <ShortName>Commitments and contingencies - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>120</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R121.htm</HtmlFileName>
      <LongName>99942601 - Disclosure - Subsequent events - (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureSubsequentEventsDetails</Role>
      <ShortName>Subsequent events - (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.huya.com/role/DisclosureSubsequentEvents</ParentRole>
      <Position>121</Position>
    </Report>
    <Report instance="huya-20251231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R122.htm</HtmlFileName>
      <LongName>99942701 - Disclosure - Restricted net assets - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.huya.com/role/DisclosureRestrictedNetAssetsAdditionalInformationDetails</Role>
      <ShortName>Restricted net assets - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>122</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>huya-20251231.xsd</File>
    <File>huya-20251231_cal.xml</File>
    <File>huya-20251231_def.xml</File>
    <File>huya-20251231_lab.xml</File>
    <File>huya-20251231_pre.xml</File>
    <File doctype="20-F" isDefinitelyFs="true" isUsgaap="true" original="huya-20251231x20f.htm">huya-20251231x20f.htm</File>
  </InputFiles>
  <SupplementalFiles>
    <File>huya-20251231x20f010.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy items="3">http://fasb.org/srt/2025</BaseTaxonomy>
    <BaseTaxonomy items="1328">http://fasb.org/us-gaap/2025</BaseTaxonomy>
    <BaseTaxonomy items="15">http://xbrl.sec.gov/cyd/2025</BaseTaxonomy>
    <BaseTaxonomy items="65">http://xbrl.sec.gov/dei/2025</BaseTaxonomy>
    <BaseTaxonomy items="1">http://xbrl.sec.gov/ecd/2025</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
