<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.21.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>479</ContextCount>
  <ElementCount>631</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>188</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>9</UnitCount>
  <MyReports>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>1001 - Document - Cover Page</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/CoverPage</Role>
      <ShortName>Cover Page</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>1002 - Statement - Consolidated Statements of Financial Position</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/ConsolidatedStatementsOfFinancialPosition</Role>
      <ShortName>Consolidated Statements of Financial Position</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>1003 - Statement - Consolidated Statements of Income (Loss) and Comprehensive Income (Loss)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/ConsolidatedStatementsOfIncomeLossAndComprehensiveIncomeLoss</Role>
      <ShortName>Consolidated Statements of Income (Loss) and Comprehensive Income (Loss)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>1004 - Statement - Consolidated Statements of Cash Flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/ConsolidatedStatementsOfCashFlows</Role>
      <ShortName>Consolidated Statements of Cash Flows</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>1005 - Statement - Consolidated Statements of Changes in Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/ConsolidatedStatementsOfChangesInEquity</Role>
      <ShortName>Consolidated Statements of Changes in Equity</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>1006 - Disclosure - Nature of Operations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/NatureOfOperations</Role>
      <ShortName>Nature of Operations</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>1007 - Disclosure - Basis of Preparation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/BasisOfPreparation</Role>
      <ShortName>Basis of Preparation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>1008 - Disclosure - Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/SignificantAccountingPolicies</Role>
      <ShortName>Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>1009 - Disclosure - Use of Judgements and Estimates</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/UseOfJudgementsAndEstimates</Role>
      <ShortName>Use of Judgements and Estimates</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>1010 - Disclosure - Acquisitions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/Acquisitions</Role>
      <ShortName>Acquisitions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>1011 - Disclosure - Trade and Other Receivables</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/TradeAndOtherReceivables</Role>
      <ShortName>Trade and Other Receivables</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>1012 - Disclosure - Inventory</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/Inventory</Role>
      <ShortName>Inventory</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>1013 - Disclosure - Investment in Associate</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/InvestmentInAssociate</Role>
      <ShortName>Investment in Associate</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>1014 - Disclosure - Mineral Properties, Plant and Equipment</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/MineralPropertiesPlantAndEquipment</Role>
      <ShortName>Mineral Properties, Plant and Equipment</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>1015 - Disclosure - Accounts Payable And Accrued Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/AccountsPayableAndAccruedLiabilities</Role>
      <ShortName>Accounts Payable And Accrued Liabilities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>1016 - Disclosure - Loans and Borrowings</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/LoansAndBorrowings</Role>
      <ShortName>Loans and Borrowings</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>1017 - Disclosure - Derivative Financial Instruments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/DerivativeFinancialInstruments</Role>
      <ShortName>Derivative Financial Instruments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>1018 - Disclosure - Reclamation Obligation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/ReclamationObligation</Role>
      <ShortName>Reclamation Obligation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>1019 - Disclosure - Other Long-Term Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/OtherLongTermLiabilities</Role>
      <ShortName>Other Long-Term Liabilities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>1020 - Disclosure - Leases</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/Leases</Role>
      <ShortName>Leases</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>1021 - Disclosure - Share Capital</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/ShareCapital</Role>
      <ShortName>Share Capital</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>1022 - Disclosure - Revenue</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/Revenue</Role>
      <ShortName>Revenue</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>1023 - Disclosure - Operating Expenses</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/OperatingExpenses</Role>
      <ShortName>Operating Expenses</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>1024 - Disclosure - Care and Maintenance</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/CareAndMaintenance</Role>
      <ShortName>Care and Maintenance</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>1025 - Disclosure - General and Administration</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/GeneralAndAdministration</Role>
      <ShortName>General and Administration</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>1026 - Disclosure - Other Income (Expense)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/OtherIncomeExpense</Role>
      <ShortName>Other Income (Expense)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>1027 - Disclosure - Income Taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/IncomeTaxes</Role>
      <ShortName>Income Taxes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>27</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>1028 - Disclosure - Segmented Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/SegmentedInformation</Role>
      <ShortName>Segmented Information</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>28</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>1029 - Disclosure - Basic and Diluted Earnings Per Share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/BasicAndDilutedEarningsPerShare</Role>
      <ShortName>Basic and Diluted Earnings Per Share</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>29</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>1030 - Disclosure - Supplemental Cash flow Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/SupplementalCashFlowInformation</Role>
      <ShortName>Supplemental Cash flow Information</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>30</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>1031 - Disclosure - Related Party Transactions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/RelatedPartyTransactions</Role>
      <ShortName>Related Party Transactions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>31</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>1032 - Disclosure - Capital Management</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/CapitalManagement</Role>
      <ShortName>Capital Management</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>32</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>1033 - Disclosure - Financial Instrument Risk Exposure and Risk Management</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/FinancialInstrumentRiskExposureAndRiskManagement</Role>
      <ShortName>Financial Instrument Risk Exposure and Risk Management</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>33</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>1034 - Disclosure - Fair Value Measurements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/FairValueMeasurements</Role>
      <ShortName>Fair Value Measurements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>34</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>1035 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/CommitmentsAndContingencies</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>35</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>1036 - Disclosure - Subsequent Events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/SubsequentEvents</Role>
      <ShortName>Subsequent Events</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>36</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>1037 - Disclosure - Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/SignificantAccountingPoliciesPolicies</Role>
      <ShortName>Significant Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/SignificantAccountingPolicies</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>1038 - Disclosure - Basis of Preparation (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/BasisOfPreparationTables</Role>
      <ShortName>Basis of Preparation (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/BasisOfPreparation</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>1039 - Disclosure - Significant Accounting Policies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/SignificantAccountingPoliciesTables</Role>
      <ShortName>Significant Accounting Policies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/SignificantAccountingPolicies</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>1040 - Disclosure - Acquisitions (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/AcquisitionsTables</Role>
      <ShortName>Acquisitions (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/Acquisitions</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>1041 - Disclosure - Trade and Other Receivables (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/TradeAndOtherReceivablesTables</Role>
      <ShortName>Trade and Other Receivables (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/TradeAndOtherReceivables</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>1042 - Disclosure - Inventory (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/InventoryTables</Role>
      <ShortName>Inventory (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/Inventory</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>1043 - Disclosure - Investment in Associate (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/InvestmentInAssociateTables</Role>
      <ShortName>Investment in Associate (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/InvestmentInAssociate</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>1044 - Disclosure - Mineral Properties, Plant and Equipment (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/MineralPropertiesPlantAndEquipmentTables</Role>
      <ShortName>Mineral Properties, Plant and Equipment (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/MineralPropertiesPlantAndEquipment</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>1045 - Disclosure - Accounts Payable And Accrued Liabilities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/AccountsPayableAndAccruedLiabilitiesTables</Role>
      <ShortName>Accounts Payable And Accrued Liabilities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/AccountsPayableAndAccruedLiabilities</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>1046 - Disclosure - Loans and Borrowings (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/LoansAndBorrowingsTables</Role>
      <ShortName>Loans and Borrowings (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/LoansAndBorrowings</ParentRole>
      <Position>46</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>1047 - Disclosure - Derivative Financial Instruments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/DerivativeFinancialInstrumentsTables</Role>
      <ShortName>Derivative Financial Instruments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/DerivativeFinancialInstruments</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>1048 - Disclosure - Reclamation Obligation (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/ReclamationObligationTables</Role>
      <ShortName>Reclamation Obligation (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/ReclamationObligation</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>1049 - Disclosure - Other Long-Term Liabilities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/OtherLongTermLiabilitiesTables</Role>
      <ShortName>Other Long-Term Liabilities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/OtherLongTermLiabilities</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>1050 - Disclosure - Leases (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/LeasesTables</Role>
      <ShortName>Leases (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/Leases</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>1051 - Disclosure - Share Capital (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/ShareCapitalTables</Role>
      <ShortName>Share Capital (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/ShareCapital</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>1052 - Disclosure - Revenue (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/RevenueTables</Role>
      <ShortName>Revenue (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/Revenue</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>1053 - Disclosure - Operating Expenses (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/OperatingExpensesTables</Role>
      <ShortName>Operating Expenses (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/OperatingExpenses</ParentRole>
      <Position>53</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>1054 - Disclosure - General and Administration (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/GeneralAndAdministrationTables</Role>
      <ShortName>General and Administration (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/GeneralAndAdministration</ParentRole>
      <Position>54</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>1055 - Disclosure - Other Income (Expense) (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/OtherIncomeExpenseTables</Role>
      <ShortName>Other Income (Expense) (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/OtherIncomeExpense</ParentRole>
      <Position>55</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>1056 - Disclosure - Income Taxes (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/IncomeTaxesTables</Role>
      <ShortName>Income Taxes (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/IncomeTaxes</ParentRole>
      <Position>56</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>1057 - Disclosure - Segmented Information (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/SegmentedInformationTables</Role>
      <ShortName>Segmented Information (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/SegmentedInformation</ParentRole>
      <Position>57</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>1058 - Disclosure - Basic and Diluted Earnings Per Share (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/BasicAndDilutedEarningsPerShareTables</Role>
      <ShortName>Basic and Diluted Earnings Per Share (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/BasicAndDilutedEarningsPerShare</ParentRole>
      <Position>58</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>1059 - Disclosure - Supplemental Cash flow Information (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/SupplementalCashFlowInformationTables</Role>
      <ShortName>Supplemental Cash flow Information (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/SupplementalCashFlowInformation</ParentRole>
      <Position>59</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>1060 - Disclosure - Related Party Transactions (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/RelatedPartyTransactionsTables</Role>
      <ShortName>Related Party Transactions (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/RelatedPartyTransactions</ParentRole>
      <Position>60</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>1061 - Disclosure - Capital Management (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/CapitalManagementTables</Role>
      <ShortName>Capital Management (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/CapitalManagement</ParentRole>
      <Position>61</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>1062 - Disclosure - Financial Instrument Risk Exposure and Risk Management (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/FinancialInstrumentRiskExposureAndRiskManagementTables</Role>
      <ShortName>Financial Instrument Risk Exposure and Risk Management (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/FinancialInstrumentRiskExposureAndRiskManagement</ParentRole>
      <Position>62</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>1063 - Disclosure - Fair Value Measurements (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/FairValueMeasurementsTables</Role>
      <ShortName>Fair Value Measurements (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/FairValueMeasurements</ParentRole>
      <Position>63</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>1064 - Disclosure - Commitments and Contingencies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/CommitmentsAndContingenciesTables</Role>
      <ShortName>Commitments and Contingencies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/CommitmentsAndContingencies</ParentRole>
      <Position>64</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>1065 - Disclosure - Basis of Preparation - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/BasisOfPreparationAdditionalInformationDetail</Role>
      <ShortName>Basis of Preparation - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>1066 - Disclosure - Basis of Preparation - Disclosure of Detailed Information about Companies Material Subsidiaries (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/BasisOfPreparationDisclosureOfDetailedInformationAboutCompaniesMaterialSubsidiariesDetail</Role>
      <ShortName>Basis of Preparation - Disclosure of Detailed Information about Companies Material Subsidiaries (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>66</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>1067 - Disclosure - Significant Accounting Policies - Schedule of Detailed Information about Plant and Equipment (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/SignificantAccountingPoliciesScheduleOfDetailedInformationAboutPlantAndEquipmentDetail</Role>
      <ShortName>Significant Accounting Policies - Schedule of Detailed Information about Plant and Equipment (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>67</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>1068 - Disclosure - Significant Accounting Policies - Additional information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/SignificantAccountingPoliciesAdditionalInformationDetail</Role>
      <ShortName>Significant Accounting Policies - Additional information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>68</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>1069 - Disclosure - Use of Judgements and Estimates - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/UseOfJudgementsAndEstimatesAdditionalInformationDetail</Role>
      <ShortName>Use of Judgements and Estimates - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>69</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>1070 - Disclosure - Acquisitions - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/AcquisitionsAdditionalInformationDetail</Role>
      <ShortName>Acquisitions - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>70</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>1071 - Disclosure - Acquisitions - Disclosure Of Detailed Information About Consideration Paid (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/AcquisitionsDisclosureOfDetailedInformationAboutConsiderationPaidDetail</Role>
      <ShortName>Acquisitions - Disclosure Of Detailed Information About Consideration Paid (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>71</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>1072 - Disclosure - Acquisitions - Disclosure Of Detailed Information About Consideration Paid (Parenthetical) (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/AcquisitionsDisclosureOfDetailedInformationAboutConsiderationPaidParentheticalDetail</Role>
      <ShortName>Acquisitions - Disclosure Of Detailed Information About Consideration Paid (Parenthetical) (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>72</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>1073 - Disclosure - Acquisitions - Disclosure Of Detailed Information About Business Combinations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/AcquisitionsDisclosureOfDetailedInformationAboutBusinessCombinationsDetails</Role>
      <ShortName>Acquisitions - Disclosure Of Detailed Information About Business Combinations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>73</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>1074 - Disclosure - Acquisitions - Disclosure Of Detailed Information About Business Combinations (Parenthetical) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/AcquisitionsDisclosureOfDetailedInformationAboutBusinessCombinationsParentheticalDetails</Role>
      <ShortName>Acquisitions - Disclosure Of Detailed Information About Business Combinations (Parenthetical) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>74</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>1075 - Disclosure - Trade and Other Receivables - Disclosure Of Trade and Other Receivables (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/TradeAndOtherReceivablesDisclosureOfTradeAndOtherReceivablesDetail</Role>
      <ShortName>Trade and Other Receivables - Disclosure Of Trade and Other Receivables (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>75</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>1076 - Disclosure - Trade and Other Receivables - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/TradeAndOtherReceivablesAdditionalInformationDetail</Role>
      <ShortName>Trade and Other Receivables - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>76</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>1077 - Disclosure - Inventory - Description Of Detailed Information About Inventories Explanatory (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/InventoryDescriptionOfDetailedInformationAboutInventoriesExplanatoryDetail</Role>
      <ShortName>Inventory - Description Of Detailed Information About Inventories Explanatory (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>77</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>1078 - Disclosure - Investment in Associate - Disclosure Of Significant Investments In Associates (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/InvestmentInAssociateDisclosureOfSignificantInvestmentsInAssociatesDetail</Role>
      <ShortName>Investment in Associate - Disclosure Of Significant Investments In Associates (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>78</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R79.htm</HtmlFileName>
      <LongName>1079 - Disclosure - Investment in Associate - Disclosure Of Significant Investments In Associates (Parenthetical) (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/InvestmentInAssociateDisclosureOfSignificantInvestmentsInAssociatesParentheticalDetail</Role>
      <ShortName>Investment in Associate - Disclosure Of Significant Investments In Associates (Parenthetical) (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>79</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R80.htm</HtmlFileName>
      <LongName>1080 - Disclosure - Investment in Associate - Disclosure Of Significant Changes In Carrying Amount Of Investment Associates (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/InvestmentInAssociateDisclosureOfSignificantChangesInCarryingAmountOfInvestmentAssociatesDetail</Role>
      <ShortName>Investment in Associate - Disclosure Of Significant Changes In Carrying Amount Of Investment Associates (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>80</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R81.htm</HtmlFileName>
      <LongName>1081 - Disclosure - Investment in Associate - Disclosure Of Summarised Financial Information Of Associates (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/InvestmentInAssociateDisclosureOfSummarisedFinancialInformationOfAssociatesDetail</Role>
      <ShortName>Investment in Associate - Disclosure Of Summarised Financial Information Of Associates (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>81</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R82.htm</HtmlFileName>
      <LongName>1082 - Disclosure - Mineral Properties, Plant and Equipment - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/MineralPropertiesPlantAndEquipmentAdditionalInformationDetail</Role>
      <ShortName>Mineral Properties, Plant and Equipment - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>82</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R83.htm</HtmlFileName>
      <LongName>1083 - Disclosure - Mineral Properties, Plant and Equipment - Detailed Information About In Property Plant And Equipment (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/MineralPropertiesPlantAndEquipmentDetailedInformationAboutInPropertyPlantAndEquipmentDetail</Role>
      <ShortName>Mineral Properties, Plant and Equipment - Detailed Information About In Property Plant And Equipment (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>83</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R84.htm</HtmlFileName>
      <LongName>1084 - Disclosure - Mineral Properties, Plant and Equipment - Detailed Information About In Significant Royalty Arrangement Based On Gross Revenue (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/MineralPropertiesPlantAndEquipmentDetailedInformationAboutInSignificantRoyaltyArrangementBasedOnGrossRevenueDetail</Role>
      <ShortName>Mineral Properties, Plant and Equipment - Detailed Information About In Significant Royalty Arrangement Based On Gross Revenue (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>84</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R85.htm</HtmlFileName>
      <LongName>1085 - Disclosure - Accounts Payable And Accrued Liabilities - Summary of Detailed Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/AccountsPayableAndAccruedLiabilitiesSummaryOfDetailedInformationDetail</Role>
      <ShortName>Accounts Payable And Accrued Liabilities - Summary of Detailed Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>85</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R86.htm</HtmlFileName>
      <LongName>1086 - Disclosure - Loans and Borrowings - Disclosure of Detailed Information About Borrowings Explanatory (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/LoansAndBorrowingsDisclosureOfDetailedInformationAboutBorrowingsExplanatoryDetails</Role>
      <ShortName>Loans and Borrowings - Disclosure of Detailed Information About Borrowings Explanatory (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>86</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R87.htm</HtmlFileName>
      <LongName>1087 - Disclosure - Loans and Borrowings - Disclosure of Detailed Information About changes in Loans And Borrowings Arising From Investing And Financing Activities (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/LoansAndBorrowingsDisclosureOfDetailedInformationAboutChangesInLoansAndBorrowingsArisingFromInvestingAndFinancingActivitiesDetail</Role>
      <ShortName>Loans and Borrowings - Disclosure of Detailed Information About changes in Loans And Borrowings Arising From Investing And Financing Activities (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>87</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R88.htm</HtmlFileName>
      <LongName>1088 - Disclosure - Loans and Borrowings - Disclosure of Detailed Information About changes in Loans And Borrowings Arising From Investing And Financing Activities (Parantheticals) (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/LoansAndBorrowingsDisclosureOfDetailedInformationAboutChangesInLoansAndBorrowingsArisingFromInvestingAndFinancingActivitiesParantheticalsDetail</Role>
      <ShortName>Loans and Borrowings - Disclosure of Detailed Information About changes in Loans And Borrowings Arising From Investing And Financing Activities (Parantheticals) (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>88</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R89.htm</HtmlFileName>
      <LongName>1089 - Disclosure - Loans and Borrowings - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/LoansAndBorrowingsAdditionalInformationDetail</Role>
      <ShortName>Loans and Borrowings - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>89</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R90.htm</HtmlFileName>
      <LongName>1090 - Disclosure - Derivative Financial Instruments - Disclosure Details Of Gain And Loss Realised And Unrealised Due To Change In Fair Value Of Derivatives (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/DerivativeFinancialInstrumentsDisclosureDetailsOfGainAndLossRealisedAndUnrealisedDueToChangeInFairValueOfDerivativesDetails</Role>
      <ShortName>Derivative Financial Instruments - Disclosure Details Of Gain And Loss Realised And Unrealised Due To Change In Fair Value Of Derivatives (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>90</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R91.htm</HtmlFileName>
      <LongName>1091 - Disclosure - Derivative Financial Instruments - Disclosure of Detailed Information About Derivative Instruments (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/DerivativeFinancialInstrumentsDisclosureOfDetailedInformationAboutDerivativeInstrumentsDetail</Role>
      <ShortName>Derivative Financial Instruments - Disclosure of Detailed Information About Derivative Instruments (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>91</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R92.htm</HtmlFileName>
      <LongName>1092 - Disclosure - Derivative Financial Instruments - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/DerivativeFinancialInstrumentsAdditionalInformationDetail</Role>
      <ShortName>Derivative Financial Instruments - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>92</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R93.htm</HtmlFileName>
      <LongName>1093 - Disclosure - Derivative Financial Instruments - Detailed Information About Fair Value Adjustment And Activities In Traded Warrant Liabilities (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/DerivativeFinancialInstrumentsDetailedInformationAboutFairValueAdjustmentAndActivitiesInTradedWarrantLiabilitiesDetail</Role>
      <ShortName>Derivative Financial Instruments - Detailed Information About Fair Value Adjustment And Activities In Traded Warrant Liabilities (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>93</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R94.htm</HtmlFileName>
      <LongName>1094 - Disclosure - Derivative Financial Instruments - Detailed Information About Weighted Average Assumptions of Non-traded Warrants (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/DerivativeFinancialInstrumentsDetailedInformationAboutWeightedAverageAssumptionsOfNonTradedWarrantsDetail</Role>
      <ShortName>Derivative Financial Instruments - Detailed Information About Weighted Average Assumptions of Non-traded Warrants (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>94</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R95.htm</HtmlFileName>
      <LongName>1095 - Disclosure - Reclamation Obligation - Disclosure Of Detailed Information About Reclamation Obligation (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/ReclamationObligationDisclosureOfDetailedInformationAboutReclamationObligationDetail</Role>
      <ShortName>Reclamation Obligation - Disclosure Of Detailed Information About Reclamation Obligation (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>95</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R96.htm</HtmlFileName>
      <LongName>1096 - Disclosure - Reclamation Obligation - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/ReclamationObligationAdditionalInformationDetail</Role>
      <ShortName>Reclamation Obligation - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>96</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R97.htm</HtmlFileName>
      <LongName>1097 - Disclosure - Other Long-Term Liabilities - Disclosure Of Detailed Information About Other Long Term Liabilities Explanatory (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/OtherLongTermLiabilitiesDisclosureOfDetailedInformationAboutOtherLongTermLiabilitiesExplanatoryDetail</Role>
      <ShortName>Other Long-Term Liabilities - Disclosure Of Detailed Information About Other Long Term Liabilities Explanatory (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>97</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R98.htm</HtmlFileName>
      <LongName>1098 - Disclosure - Leases - Summary of Quantitative Information About Right of Use Assets (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/LeasesSummaryOfQuantitativeInformationAboutRightOfUseAssetsDetail</Role>
      <ShortName>Leases - Summary of Quantitative Information About Right of Use Assets (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>98</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R99.htm</HtmlFileName>
      <LongName>1099 - Disclosure - Leases - Summary of Lease Liabilities (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/LeasesSummaryOfLeaseLiabilitiesDetail</Role>
      <ShortName>Leases - Summary of Lease Liabilities (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>99</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R100.htm</HtmlFileName>
      <LongName>1100 - Disclosure - Leases - Additional information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/LeasesAdditionalInformationDetail</Role>
      <ShortName>Leases - Additional information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>100</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R101.htm</HtmlFileName>
      <LongName>1101 - Disclosure - Share Capital - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/ShareCapitalAdditionalInformationDetail</Role>
      <ShortName>Share Capital - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>101</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R102.htm</HtmlFileName>
      <LongName>1102 - Disclosure - Share Capital - Summary of Share Based Compensation (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/ShareCapitalSummaryOfShareBasedCompensationDetail</Role>
      <ShortName>Share Capital - Summary of Share Based Compensation (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>102</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R103.htm</HtmlFileName>
      <LongName>1103 - Disclosure - Share Capital - Disclosure of Indirect Measurement of Fair Value of Goods or Services Received, Share Options Granted (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/ShareCapitalDisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedShareOptionsGrantedDetail</Role>
      <ShortName>Share Capital - Disclosure of Indirect Measurement of Fair Value of Goods or Services Received, Share Options Granted (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>103</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R104.htm</HtmlFileName>
      <LongName>1104 - Disclosure - Share Capital - Disclosure of Number and Weighted Average Exercise Prices of Share Options (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/ShareCapitalDisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsDetail</Role>
      <ShortName>Share Capital - Disclosure of Number and Weighted Average Exercise Prices of Share Options (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>104</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R105.htm</HtmlFileName>
      <LongName>1105 - Disclosure - Share Capital - Disclosure of Range of Exercise Prices of Outstanding Share Options (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/ShareCapitalDisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsDetail</Role>
      <ShortName>Share Capital - Disclosure of Range of Exercise Prices of Outstanding Share Options (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>105</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R106.htm</HtmlFileName>
      <LongName>1106 - Disclosure - Share Capital - Disclosure of Detailed Information about Share Purchase Warrants Activity (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/ShareCapitalDisclosureOfDetailedInformationAboutSharePurchaseWarrantsActivityDetail</Role>
      <ShortName>Share Capital - Disclosure of Detailed Information about Share Purchase Warrants Activity (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>106</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R107.htm</HtmlFileName>
      <LongName>1107 - Disclosure - Share Capital - Disclosure of Range of Exercise Prices of Outstanding Share Purchase Warrants (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/ShareCapitalDisclosureOfRangeOfExercisePricesOfOutstandingSharePurchaseWarrantsDetail</Role>
      <ShortName>Share Capital - Disclosure of Range of Exercise Prices of Outstanding Share Purchase Warrants (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>107</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R108.htm</HtmlFileName>
      <LongName>1108 - Disclosure - Share Capital - Disclosure of Number and Weighted Average Exercise Prices of Other Equity Instruments (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/ShareCapitalDisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsDetail</Role>
      <ShortName>Share Capital - Disclosure of Number and Weighted Average Exercise Prices of Other Equity Instruments (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>108</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R109.htm</HtmlFileName>
      <LongName>1109 - Disclosure - Share Capital - Disclosure of Number and Weighted Average Exercise Prices of Other Equity Instruments of Cash Settled RSUs Outstanding (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/ShareCapitalDisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsOfCashSettledRsusOutstandingDetail</Role>
      <ShortName>Share Capital - Disclosure of Number and Weighted Average Exercise Prices of Other Equity Instruments of Cash Settled RSUs Outstanding (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>109</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R110.htm</HtmlFileName>
      <LongName>1110 - Disclosure - Share Capital - Disclosure of Number and Weighted Average Exercise Prices of Other Equity Instruments of PSUs outstanding (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/ShareCapitalDisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsOfPsusOutstandingDetail</Role>
      <ShortName>Share Capital - Disclosure of Number and Weighted Average Exercise Prices of Other Equity Instruments of PSUs outstanding (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>110</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R111.htm</HtmlFileName>
      <LongName>1111 - Disclosure - Share Capital - Disclosure of Number and Weighted Average Exercise Prices of Other Equity Instruments of DSUs outstanding (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/ShareCapitalDisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsOfDsusOutstandingDetail</Role>
      <ShortName>Share Capital - Disclosure of Number and Weighted Average Exercise Prices of Other Equity Instruments of DSUs outstanding (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>111</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R112.htm</HtmlFileName>
      <LongName>1112 - Disclosure - Revenue - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/RevenueAdditionalInformationDetail</Role>
      <ShortName>Revenue - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>112</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R113.htm</HtmlFileName>
      <LongName>1113 - Disclosure - Revenue - Summary of Disaggregation of Revenue from Contracts with Customers (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/RevenueSummaryOfDisaggregationOfRevenueFromContractsWithCustomersDetail</Role>
      <ShortName>Revenue - Summary of Disaggregation of Revenue from Contracts with Customers (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>113</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R114.htm</HtmlFileName>
      <LongName>1114 - Disclosure - Operating Expenses - Disclosure Of Detailed Information About Components Of Operating Expense (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/OperatingExpensesDisclosureOfDetailedInformationAboutComponentsOfOperatingExpenseDetail</Role>
      <ShortName>Operating Expenses - Disclosure Of Detailed Information About Components Of Operating Expense (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>114</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R115.htm</HtmlFileName>
      <LongName>1115 - Disclosure - Care and Maintenance - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/CareAndMaintenanceAdditionalInformationDetail</Role>
      <ShortName>Care and Maintenance - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>115</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R116.htm</HtmlFileName>
      <LongName>1116 - Disclosure - General and Administration - Disclosure of Detailed Information About In General And Administration Explanatory (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/GeneralAndAdministrationDisclosureOfDetailedInformationAboutInGeneralAndAdministrationExplanatoryDetail</Role>
      <ShortName>General and Administration - Disclosure of Detailed Information About In General And Administration Explanatory (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>116</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R117.htm</HtmlFileName>
      <LongName>1117 - Disclosure - Other Income (Expense) - Disclosure Of Detailed Information About In Other  Income Expense Non Operating Explanatory (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/OtherIncomeExpenseDisclosureOfDetailedInformationAboutInOtherIncomeExpenseNonOperatingExplanatoryDetail</Role>
      <ShortName>Other Income (Expense) - Disclosure Of Detailed Information About In Other  Income Expense Non Operating Explanatory (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/OtherIncomeExpenseTables</ParentRole>
      <Position>117</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R118.htm</HtmlFileName>
      <LongName>1118 - Disclosure - Other Income (Expense) - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/OtherIncomeExpenseAdditionalInformationDetail</Role>
      <ShortName>Other Income (Expense) - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://EquinoxGold.com/role/OtherIncomeExpenseTables</ParentRole>
      <Position>118</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R119.htm</HtmlFileName>
      <LongName>1119 - Disclosure - Income Taxes - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/IncomeTaxesAdditionalInformationDetail</Role>
      <ShortName>Income Taxes - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>119</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R120.htm</HtmlFileName>
      <LongName>1120 - Disclosure - Income Taxes - Disclosure Detailed Information About Components Of Tax Expense Income (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/IncomeTaxesDisclosureDetailedInformationAboutComponentsOfTaxExpenseIncomeDetail</Role>
      <ShortName>Income Taxes - Disclosure Detailed Information About Components Of Tax Expense Income (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>120</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R121.htm</HtmlFileName>
      <LongName>1121 - Disclosure - Income Taxes - Disclosure Of Detailed Information About Components Of Deferred Tax Assets and Liabilities (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/IncomeTaxesDisclosureOfDetailedInformationAboutComponentsOfDeferredTaxAssetsAndLiabilitiesDetail</Role>
      <ShortName>Income Taxes - Disclosure Of Detailed Information About Components Of Deferred Tax Assets and Liabilities (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>121</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R122.htm</HtmlFileName>
      <LongName>1122 - Disclosure - Income Taxes - Deferred Tax Assets And Liabilities Explanatory (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesExplanatoryDetail</Role>
      <ShortName>Income Taxes - Deferred Tax Assets And Liabilities Explanatory (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>122</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R123.htm</HtmlFileName>
      <LongName>1123 - Disclosure - Income Taxes - Disclosure Of Detailed Information About Net Deferred Tax Assets And Liabilities (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/IncomeTaxesDisclosureOfDetailedInformationAboutNetDeferredTaxAssetsAndLiabilitiesDetail</Role>
      <ShortName>Income Taxes - Disclosure Of Detailed Information About Net Deferred Tax Assets And Liabilities (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>123</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R124.htm</HtmlFileName>
      <LongName>1124 - Disclosure - Income Taxes - Disclosure Of Detailed Information About Deductible Temporary Differences Unused Tax Losses And Unused Tax Credits For Which Deferred Tax Assets Not Recognized (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/IncomeTaxesDisclosureOfDetailedInformationAboutDeductibleTemporaryDifferencesUnusedTaxLossesAndUnusedTaxCreditsForWhichDeferredTaxAssetsNotRecognizedDetail</Role>
      <ShortName>Income Taxes - Disclosure Of Detailed Information About Deductible Temporary Differences Unused Tax Losses And Unused Tax Credits For Which Deferred Tax Assets Not Recognized (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>124</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R125.htm</HtmlFileName>
      <LongName>1125 - Disclosure - Income Taxes - Disclosure Of Detailed Information About Non Capital Loss Applied To Reduce Future Taxable Income (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/IncomeTaxesDisclosureOfDetailedInformationAboutNonCapitalLossAppliedToReduceFutureTaxableIncomeDetail</Role>
      <ShortName>Income Taxes - Disclosure Of Detailed Information About Non Capital Loss Applied To Reduce Future Taxable Income (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>125</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R126.htm</HtmlFileName>
      <LongName>1126 - Disclosure - Segmented Information - Disclosure Of Operating Segments Explanatory (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/SegmentedInformationDisclosureOfOperatingSegmentsExplanatoryDetail</Role>
      <ShortName>Segmented Information - Disclosure Of Operating Segments Explanatory (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>126</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R127.htm</HtmlFileName>
      <LongName>1127 - Disclosure - Segmented Information - Disclosure Of Detailed Information About Assets And Liabilities Based On Operating Segments (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/SegmentedInformationDisclosureOfDetailedInformationAboutAssetsAndLiabilitiesBasedOnOperatingSegmentsDetail</Role>
      <ShortName>Segmented Information - Disclosure Of Detailed Information About Assets And Liabilities Based On Operating Segments (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>127</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R128.htm</HtmlFileName>
      <LongName>1128 - Disclosure - Segmented Information - Disclosure Of Detailed Information About Noncurrent Assets By Jurisdiction (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/SegmentedInformationDisclosureOfDetailedInformationAboutNoncurrentAssetsByJurisdictionDetail</Role>
      <ShortName>Segmented Information - Disclosure Of Detailed Information About Noncurrent Assets By Jurisdiction (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>128</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R129.htm</HtmlFileName>
      <LongName>1129 - Disclosure - Segmented Information - Disclosure Of Details of revenue is based on the location (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/SegmentedInformationDisclosureOfDetailsOfRevenueIsBasedOnTheLocationDetail</Role>
      <ShortName>Segmented Information - Disclosure Of Details of revenue is based on the location (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>129</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R130.htm</HtmlFileName>
      <LongName>1130 - Disclosure - Segmented Information - Summary of sales to individual customers that exceed 10 % of annual Metal sales (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/SegmentedInformationSummaryOfSalesToIndividualCustomersThatExceed10OfAnnualMetalSalesDetail</Role>
      <ShortName>Segmented Information - Summary of sales to individual customers that exceed 10 % of annual Metal sales (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>130</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R131.htm</HtmlFileName>
      <LongName>1131 - Disclosure - Segmented Information - Summary of sales to individual customers that exceed 10 % of annual Metal sales (Parenthetical) (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/SegmentedInformationSummaryOfSalesToIndividualCustomersThatExceed10OfAnnualMetalSalesParentheticalDetail</Role>
      <ShortName>Segmented Information - Summary of sales to individual customers that exceed 10 % of annual Metal sales (Parenthetical) (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>131</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R132.htm</HtmlFileName>
      <LongName>1132 - Disclosure - Basic and Diluted Earnings Per Share - Summary of Earnings (Loss) per Share Basic and Diluted Basis (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/BasicAndDilutedEarningsPerShareSummaryOfEarningsLossPerShareBasicAndDilutedBasisDetail</Role>
      <ShortName>Basic and Diluted Earnings Per Share - Summary of Earnings (Loss) per Share Basic and Diluted Basis (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>132</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R133.htm</HtmlFileName>
      <LongName>1133 - Disclosure - Basic and Diluted Earnings Per Share - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/BasicAndDilutedEarningsPerShareAdditionalInformationDetail</Role>
      <ShortName>Basic and Diluted Earnings Per Share - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>133</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R134.htm</HtmlFileName>
      <LongName>1134 - Disclosure - Supplemental cash flow information - Disclosure of detailed information about non-cash&amp;#160;investing and financing transactions (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/SupplementalCashFlowInformationDisclosureOfDetailedInformationAboutNonCashInvestingAndFinancingTransactionsDetail</Role>
      <ShortName>Supplemental cash flow information - Disclosure of detailed information about non-cash&amp;#160;investing and financing transactions (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>134</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R135.htm</HtmlFileName>
      <LongName>1135 - Disclosure - Related Party Transactions - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/RelatedPartyTransactionsAdditionalInformationDetail</Role>
      <ShortName>Related Party Transactions - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>135</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R136.htm</HtmlFileName>
      <LongName>1136 - Disclosure - Related Party Transactions - Disclosure Of Directors And Other Key Management Personnel (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/RelatedPartyTransactionsDisclosureOfDirectorsAndOtherKeyManagementPersonnelDetail</Role>
      <ShortName>Related Party Transactions - Disclosure Of Directors And Other Key Management Personnel (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>136</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R137.htm</HtmlFileName>
      <LongName>1137 - Disclosure - Capital Management - Detailed Information About Capital Computation (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/CapitalManagementDetailedInformationAboutCapitalComputationDetail</Role>
      <ShortName>Capital Management - Detailed Information About Capital Computation (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>137</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R138.htm</HtmlFileName>
      <LongName>1138 - Disclosure - Financial Instrument Risk Exposure and Risk Management - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/FinancialInstrumentRiskExposureAndRiskManagementAdditionalInformationDetail</Role>
      <ShortName>Financial Instrument Risk Exposure and Risk Management - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>138</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R139.htm</HtmlFileName>
      <LongName>1139 - Disclosure - Financial Instrument Risk Exposure and Risk Management - Disclosure Of Detailed Information About Financial Assets And Liabilities Denominated In Currencies Other Than The US Dollar (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/FinancialInstrumentRiskExposureAndRiskManagementDisclosureOfDetailedInformationAboutFinancialAssetsAndLiabilitiesDenominatedInCurrenciesOtherThanTheUsDollarDetail</Role>
      <ShortName>Financial Instrument Risk Exposure and Risk Management - Disclosure Of Detailed Information About Financial Assets And Liabilities Denominated In Currencies Other Than The US Dollar (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>139</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R140.htm</HtmlFileName>
      <LongName>1140 - Disclosure - Fair Value Measurements - Detailed Information about Fair Value of Financial Assets and Liabilities (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/FairValueMeasurementsDetailedInformationAboutFairValueOfFinancialAssetsAndLiabilitiesDetail</Role>
      <ShortName>Fair Value Measurements - Detailed Information about Fair Value of Financial Assets and Liabilities (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>140</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R141.htm</HtmlFileName>
      <LongName>1141 - Disclosure - Commitments and Contingencies - Disclosure of Detailed Information about Contractual Obligations Outstanding (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/CommitmentsAndContingenciesDisclosureOfDetailedInformationAboutContractualObligationsOutstandingDetail</Role>
      <ShortName>Commitments and Contingencies - Disclosure of Detailed Information about Contractual Obligations Outstanding (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>141</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R142.htm</HtmlFileName>
      <LongName>1142 - Disclosure - Commitments and Contingencies - Disclosure of Detailed Information about Contractual Obligations Outstanding (Parenthetical) (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/CommitmentsAndContingenciesDisclosureOfDetailedInformationAboutContractualObligationsOutstandingParentheticalDetail</Role>
      <ShortName>Commitments and Contingencies - Disclosure of Detailed Information about Contractual Obligations Outstanding (Parenthetical) (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>142</Position>
    </Report>
    <Report instance="eqx-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R143.htm</HtmlFileName>
      <LongName>1143 - Disclosure - Subsequent Events - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://EquinoxGold.com/role/SubsequentEventsAdditionalInformationDetail</Role>
      <ShortName>Subsequent Events - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>143</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>eqx-20201231.xml</File>
    <File>eqx-20201231.xsd</File>
    <File>eqx-20201231_cal.xml</File>
    <File>eqx-20201231_def.xml</File>
    <File>eqx-20201231_lab.xml</File>
    <File>eqx-20201231_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy>http://xbrl.sec.gov/dei/2020-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.ifrs.org/taxonomy/2020-03-16/ifrs-full</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.sec.gov/currency/2020-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://fasb.org/srt/2020-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.sec.gov/country/2020-01-31</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
