<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.25.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>575</ContextCount>
  <ElementCount>693</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>224</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>14</UnitCount>
  <MyReports>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>100000 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DocumentDocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>100010 - Statement - Consolidated Balance Sheets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_StatementConsolidatedBalanceSheets</Role>
      <ShortName>Consolidated Balance Sheets</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>100020 - Statement - Consolidated Balance Sheets (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_StatementConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>Consolidated Balance Sheets (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>100050 - Statement - Consolidated Statements of Operations and Comprehensive Loss</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/StatementConsolidatedStatementsOfOperationsAndComprehensiveLoss</Role>
      <ShortName>Consolidated Statements of Operations and Comprehensive Loss</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>100060 - Statement - Consolidated Statements of Shareholders' Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_StatementConsolidatedStatementsOfShareholdersEquity</Role>
      <ShortName>Consolidated Statements of Shareholders' Equity</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>100070 - Statement - Consolidated Statements of Cash Flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_StatementConsolidatedStatementsOfCashFlows</Role>
      <ShortName>Consolidated Statements of Cash Flows</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>100080 - Statement - Consolidated Statements of Cash Flows (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsParenthetical</Role>
      <ShortName>Consolidated Statements of Cash Flows (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>100090 - Disclosure - Cybersecurity Risk Management, Strategy, and Governance</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureCybersecurityRiskManagementStrategyAndGovernance</Role>
      <ShortName>Cybersecurity Risk Management, Strategy, and Governance</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.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>9</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>995443 - Disclosure - Award Timing Disclosure</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/AwardTimingDisclosure</Role>
      <ShortName>Award Timing Disclosure</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>995445 - Disclosure - Insider Trading Arrangements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements</Role>
      <ShortName>Insider Trading Arrangements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.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>12</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>995453 - Disclosure - Description of Business</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureDescriptionOfBusiness</Role>
      <ShortName>Description of Business</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>995463 - Disclosure - Basis of Presentation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureBasisOfPresentation</Role>
      <ShortName>Basis of Presentation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>995473 - Disclosure - Summary of Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>995483 - Disclosure - New Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureNewAccountingPolicies</Role>
      <ShortName>New Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>995493 - Disclosure - Canopy USA</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureCanopyUsa</Role>
      <ShortName>Canopy USA</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>995503 - Disclosure - Biosteel</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureBiosteel</Role>
      <ShortName>Biosteel</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>995513 - Disclosure - Asset Impairment and Restructuring Costs</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureAssetImpairmentAndRestructuringCosts</Role>
      <ShortName>Asset Impairment and Restructuring Costs</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>995533 - Disclosure - Cash and Cash Equivalents</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureCashAndCashEquivalents</Role>
      <ShortName>Cash and Cash Equivalents</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>995543 - Disclosure - Short-term Investments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureShortTermInvestments</Role>
      <ShortName>Short-term Investments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>995553 - Disclosure - Amounts Receivable, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureAmountsReceivableNet</Role>
      <ShortName>Amounts Receivable, Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>995563 - Disclosure - Inventory</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureInventory</Role>
      <ShortName>Inventory</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>995573 - Disclosure - Prepaid Expenses and Other Assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosurePrepaidExpensesAndOtherAssets</Role>
      <ShortName>Prepaid Expenses and Other Assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>995583 - Disclosure - Other Investments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureOtherInvestments1</Role>
      <ShortName>Other Investments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>995593 - Disclosure - Property, Plant and Equipment</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosurePropertyPlantAndEquipment</Role>
      <ShortName>Property, Plant and Equipment</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>995603 - Disclosure - Intangible Assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureIntangibleAssets</Role>
      <ShortName>Intangible Assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>27</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>995613 - Disclosure - Goodwill</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureGoodwill</Role>
      <ShortName>Goodwill</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>28</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>995623 - Disclosure - Other Accrued Expenses and Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureOtherAccruedExpensesAndLiabilities</Role>
      <ShortName>Other Accrued Expenses and Liabilities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>29</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>995633 - Disclosure - Debt</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureDebt</Role>
      <ShortName>Debt</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>30</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>995643 - Disclosure - Other Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureOtherLiabilities</Role>
      <ShortName>Other Liabilities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>31</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>995653 - Disclosure - Redeemable Noncontrolling Interest</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureRedeemableNoncontrollingInterest</Role>
      <ShortName>Redeemable Noncontrolling Interest</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>32</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>995663 - Disclosure - Share Capital</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureShareCapital</Role>
      <ShortName>Share Capital</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>33</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>995673 - Disclosure - Share-Based Compensation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureShareBasedCompensation</Role>
      <ShortName>Share-Based Compensation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>34</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>995683 - Disclosure - Accumulated Other Comprehensive Income (Loss)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureAccumulatedOtherComprehensiveIncomeLoss</Role>
      <ShortName>Accumulated Other Comprehensive Income (Loss)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>35</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>995693 - Disclosure - Noncontrolling Interests</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureNoncontrollingInterests</Role>
      <ShortName>Noncontrolling Interests</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>36</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>995703 - Disclosure - Fair Value of Financial Instruments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureFairValueOfFinancialInstruments</Role>
      <ShortName>Fair Value of Financial Instruments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>37</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>995713 - Disclosure - Revenue</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureRevenue</Role>
      <ShortName>Revenue</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>38</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>995733 - Disclosure - Other Income (Expense), Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureOtherIncomeExpenseNet</Role>
      <ShortName>Other Income (Expense), Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>39</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>995743 - Disclosure - Income Taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureIncomeTaxes</Role>
      <ShortName>Income Taxes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>40</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>995753 - Disclosure - Acquisitions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureAcquisitions</Role>
      <ShortName>Acquisitions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>41</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>995763 - Disclosure - Divestitures</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureDivestitures</Role>
      <ShortName>Divestitures</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>42</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>995773 - Disclosure - Acreage Arrangement</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureAcreageArrangement1</Role>
      <ShortName>Acreage Arrangement</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>43</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>995783 - Disclosure - Leases</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureLeases</Role>
      <ShortName>Leases</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>995793 - Disclosure - Related Party</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureRelatedParty</Role>
      <ShortName>Related Party</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>995803 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureCommitmentsAndContingencies</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>995813 - Disclosure - Segmented Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureSegmentedInformation</Role>
      <ShortName>Segmented Information</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>47</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>995833 - Disclosure - Subsequent Events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureSubsequentEvents</Role>
      <ShortName>Subsequent Events</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>48</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>995843 - Disclosure - Summary of Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>995863 - Disclosure - Summary of Significant Accounting Policies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesTables</Role>
      <ShortName>Summary of Significant Accounting Policies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>995873 - Disclosure - Canopy USA (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureCanopyUsaTables</Role>
      <ShortName>Canopy USA (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureCanopyUsa</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>995883 - Disclosure - Biosteel (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureBiosteelTables</Role>
      <ShortName>Biosteel (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureBiosteel</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>995893 - Disclosure - Asset Impairment and Restructuring Costs (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureAssetImpairmentAndRestructuringCostsTables</Role>
      <ShortName>Asset Impairment and Restructuring Costs (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureAssetImpairmentAndRestructuringCosts</ParentRole>
      <Position>53</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>995903 - Disclosure - Cash and Cash Equivalents (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureCashAndCashEquivalentsTables</Role>
      <ShortName>Cash and Cash Equivalents (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureCashAndCashEquivalents</ParentRole>
      <Position>54</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>995913 - Disclosure - Short-term Investments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureShortTermInvestmentsTables</Role>
      <ShortName>Short-term Investments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureShortTermInvestments</ParentRole>
      <Position>55</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>995923 - Disclosure - Amounts Receivable, Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureAmountsReceivableNetTables</Role>
      <ShortName>Amounts Receivable, Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureAmountsReceivableNet</ParentRole>
      <Position>56</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>995933 - Disclosure - Inventory (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureInventoryTables</Role>
      <ShortName>Inventory (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureInventory</ParentRole>
      <Position>57</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>995943 - Disclosure - Prepaid Expenses and Other Assets (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosurePrepaidExpensesAndOtherAssetsTables</Role>
      <ShortName>Prepaid Expenses and Other Assets (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosurePrepaidExpensesAndOtherAssets</ParentRole>
      <Position>58</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>995953 - Disclosure - Other Investments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureOtherInvestmentsTables</Role>
      <ShortName>Other Investments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureOtherInvestments1</ParentRole>
      <Position>59</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>995963 - Disclosure - Property, Plant and Equipment (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosurePropertyPlantAndEquipmentTables</Role>
      <ShortName>Property, Plant and Equipment (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosurePropertyPlantAndEquipment</ParentRole>
      <Position>60</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>995973 - Disclosure - Intangible Assets (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureIntangibleAssetsTables</Role>
      <ShortName>Intangible Assets (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureIntangibleAssets</ParentRole>
      <Position>61</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>995983 - Disclosure - Goodwill (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureGoodwillTables</Role>
      <ShortName>Goodwill (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureGoodwill</ParentRole>
      <Position>62</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>995993 - Disclosure - Other Accrued Expenses and Liabilities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureOtherAccruedExpensesAndLiabilitiesTables</Role>
      <ShortName>Other Accrued Expenses and Liabilities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureOtherAccruedExpensesAndLiabilities</ParentRole>
      <Position>63</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>996003 - Disclosure - Debt (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureDebtTables</Role>
      <ShortName>Debt (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureDebt</ParentRole>
      <Position>64</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>996013 - Disclosure - Other Liabilities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureOtherLiabilitiesTables</Role>
      <ShortName>Other Liabilities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureOtherLiabilities</ParentRole>
      <Position>65</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>996023 - Disclosure - Redeemable Noncontrolling Interest (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureRedeemableNoncontrollingInterestTables</Role>
      <ShortName>Redeemable Noncontrolling Interest (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureRedeemableNoncontrollingInterest</ParentRole>
      <Position>66</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>996033 - Disclosure - Share Capital (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureShareCapitalTables</Role>
      <ShortName>Share Capital (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureShareCapital</ParentRole>
      <Position>67</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>996043 - Disclosure - Share-Based Compensation (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureShareBasedCompensationTables</Role>
      <ShortName>Share-Based Compensation (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureShareBasedCompensation</ParentRole>
      <Position>68</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>996053 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureAccumulatedOtherComprehensiveIncomeLossTables</Role>
      <ShortName>Accumulated Other Comprehensive Income (Loss) (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureAccumulatedOtherComprehensiveIncomeLoss</ParentRole>
      <Position>69</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>996063 - Disclosure - Noncontrolling Interests (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureNoncontrollingInterestsTables</Role>
      <ShortName>Noncontrolling Interests (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureNoncontrollingInterests</ParentRole>
      <Position>70</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>996073 - Disclosure - Fair Value of Financial Instruments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureFairValueOfFinancialInstrumentsTables</Role>
      <ShortName>Fair Value of Financial Instruments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureFairValueOfFinancialInstruments</ParentRole>
      <Position>71</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>996083 - Disclosure - Revenue (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureRevenueTables</Role>
      <ShortName>Revenue (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureRevenue</ParentRole>
      <Position>72</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>996093 - Disclosure - Other Income (Expense), Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureOtherIncomeExpenseNetTables</Role>
      <ShortName>Other Income (Expense), Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureOtherIncomeExpenseNet</ParentRole>
      <Position>73</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>996103 - Disclosure - Income Taxes (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureIncomeTaxesTables</Role>
      <ShortName>Income Taxes (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureIncomeTaxes</ParentRole>
      <Position>74</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>996113 - Disclosure - Acquisitions (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureAcquisitionsTables</Role>
      <ShortName>Acquisitions (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureAcquisitions</ParentRole>
      <Position>75</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>996123 - Disclosure - Divestitures (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureDivestituresTables</Role>
      <ShortName>Divestitures (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureDivestitures</ParentRole>
      <Position>76</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>996133 - Disclosure - Leases (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureLeasesTables</Role>
      <ShortName>Leases (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureLeases</ParentRole>
      <Position>77</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>996143 - Disclosure - Commitments and Contingencies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureCommitmentsAndContingenciesTables</Role>
      <ShortName>Commitments and Contingencies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureCommitmentsAndContingencies</ParentRole>
      <Position>78</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R79.htm</HtmlFileName>
      <LongName>996153 - Disclosure - Segmented Information (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureSegmentedInformationTables</Role>
      <ShortName>Segmented Information (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureSegmentedInformation</ParentRole>
      <Position>79</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R80.htm</HtmlFileName>
      <LongName>996173 - Disclosure - Basis of Presentation - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureBasisOfPresentationAdditionalInformationDetails</Role>
      <ShortName>Basis of Presentation - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>80</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R81.htm</HtmlFileName>
      <LongName>996183 - Disclosure - Summary of Significant Accounting Policies - Summary of Expected Useful Life of Property, Plant and Equipment (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfExpectedUsefulLifeOfPropertyPlantAndEquipmentDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Summary of Expected Useful Life of Property, Plant and Equipment (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>81</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R82.htm</HtmlFileName>
      <LongName>996193 - Disclosure - Summary of Significant Accounting Policies - Summary of Finite Lived Intangible Assets Useful Life (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfFiniteLivedIntangibleAssetsUsefulLifeDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Summary of Finite Lived Intangible Assets Useful Life (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>82</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R83.htm</HtmlFileName>
      <LongName>996203 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>83</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R84.htm</HtmlFileName>
      <LongName>996213 - Disclosure - New Accounting Policies - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureNewAccountingPoliciesAdditionalInformationDetails</Role>
      <ShortName>New Accounting Policies - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>84</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R85.htm</HtmlFileName>
      <LongName>996223 - Disclosure - Canopy USA - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureCanopyUsaAdditionalInformationDetails</Role>
      <ShortName>Canopy USA - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>85</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R86.htm</HtmlFileName>
      <LongName>996233 - Disclosure - Canopy USA - Ownership of U.S. Cannabis Investments - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureCanopyUsaOwnershipOfUsCannabisInvestmentsAdditionalInformationDetails</Role>
      <ShortName>Canopy USA - Ownership of U.S. Cannabis Investments - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>86</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R87.htm</HtmlFileName>
      <LongName>996243 - Disclosure - Canopy USA - Summary of Derecognized Assets and Liabilities Transferred (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureCanopyUsaSummaryOfDerecognizedAssetsAndLiabilitiesTransferredDetails</Role>
      <ShortName>Canopy USA - Summary of Derecognized Assets and Liabilities Transferred (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>87</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R88.htm</HtmlFileName>
      <LongName>996253 - Disclosure - Canopy USA - CBI Exchange and Note Exchange - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureCanopyUsaCbiExchangeAndNoteExchangeAdditionalInformationDetails</Role>
      <ShortName>Canopy USA - CBI Exchange and Note Exchange - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>88</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R89.htm</HtmlFileName>
      <LongName>996263 - Disclosure - Biosteel - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureBiosteelAdditionalInformationDetails</Role>
      <ShortName>Biosteel - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>89</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R90.htm</HtmlFileName>
      <LongName>996273 - Disclosure - Biosteel - Summary of Deconsolidation and Costs to Exit Classified as Discontinued Operations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureBiosteelSummaryOfDeconsolidationAndCostsToExitClassifiedAsDiscontinuedOperationsDetails</Role>
      <ShortName>Biosteel - Summary of Deconsolidation and Costs to Exit Classified as Discontinued Operations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>90</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R91.htm</HtmlFileName>
      <LongName>996283 - Disclosure - Biosteel - Summary of Deconsolidation and Costs to Exit Classified as Discontinued Operations (Parenthetical) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureBiosteelSummaryOfDeconsolidationAndCostsToExitClassifiedAsDiscontinuedOperationsParentheticalDetails</Role>
      <ShortName>Biosteel - Summary of Deconsolidation and Costs to Exit Classified as Discontinued Operations (Parenthetical) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>91</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R92.htm</HtmlFileName>
      <LongName>996293 - Disclosure - Biosteel - Summary of Assets and Liabilities Classified as Discontinued Operations and Major Categories (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureBiosteelSummaryOfAssetsAndLiabilitiesClassifiedAsDiscontinuedOperationsAndMajorCategoriesDetails</Role>
      <ShortName>Biosteel - Summary of Assets and Liabilities Classified as Discontinued Operations and Major Categories (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>92</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R93.htm</HtmlFileName>
      <LongName>996303 - Disclosure - Asset Impairment and Restructuring Costs - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureAssetImpairmentAndRestructuringCostsAdditionalInformationDetails</Role>
      <ShortName>Asset Impairment and Restructuring Costs - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>93</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R94.htm</HtmlFileName>
      <LongName>996313 - Disclosure - Asset Impairment and Restructuring Costs - Summary of Pre-tax Charges Recognized in Restructuring Actions and Other Impairments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureAssetImpairmentAndRestructuringCostsSummaryOfPreTaxChargesRecognizedInRestructuringActionsAndOtherImpairmentsDetails</Role>
      <ShortName>Asset Impairment and Restructuring Costs - Summary of Pre-tax Charges Recognized in Restructuring Actions and Other Impairments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>94</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R95.htm</HtmlFileName>
      <LongName>996323 - Disclosure - Cash and Cash Equivalents - Components of Cash and Cash Equivalents (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureCashAndCashEquivalentsComponentsOfCashAndCashEquivalentsDetails</Role>
      <ShortName>Cash and Cash Equivalents - Components of Cash and Cash Equivalents (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>95</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R96.htm</HtmlFileName>
      <LongName>996343 - Disclosure - Short-term Investments - Components of Short-term Investments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureShortTermInvestmentsComponentsOfShortTermInvestmentsDetails</Role>
      <ShortName>Short-term Investments - Components of Short-term Investments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>96</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R97.htm</HtmlFileName>
      <LongName>996353 - Disclosure - Short-term Investments - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureShortTermInvestmentsAdditionalInformationDetails</Role>
      <ShortName>Short-term Investments - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>97</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R98.htm</HtmlFileName>
      <LongName>996363 - Disclosure - Amounts Receivable, Net - Components of Amounts Receivable, Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureAmountsReceivableNetComponentsOfAmountsReceivableNetDetails</Role>
      <ShortName>Amounts Receivable, Net - Components of Amounts Receivable, Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>98</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R99.htm</HtmlFileName>
      <LongName>996373 - Disclosure - Amounts Receivable, Net - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureAmountsReceivableNetAdditionalInformationDetails</Role>
      <ShortName>Amounts Receivable, Net - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>99</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R100.htm</HtmlFileName>
      <LongName>996383 - Disclosure - Inventory - Components of Inventory (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureInventoryComponentsOfInventoryDetails</Role>
      <ShortName>Inventory - Components of Inventory (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>100</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R101.htm</HtmlFileName>
      <LongName>996393 - Disclosure - Inventory - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureInventoryAdditionalInformationDetails</Role>
      <ShortName>Inventory - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>101</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R102.htm</HtmlFileName>
      <LongName>996403 - Disclosure - Prepaid Expenses and Other Assets - Components of Prepaid Expenses and Other Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosurePrepaidExpensesAndOtherAssetsComponentsOfPrepaidExpensesAndOtherAssetsDetails</Role>
      <ShortName>Prepaid Expenses and Other Assets - Components of Prepaid Expenses and Other Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>102</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R103.htm</HtmlFileName>
      <LongName>996413 - Disclosure - Other Investments - Summary of Changes in Other Financial Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureOtherInvestmentsSummaryOfChangesInOtherFinancialAssetsDetails</Role>
      <ShortName>Other Investments - Summary of Changes in Other Financial Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>103</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R104.htm</HtmlFileName>
      <LongName>996423 - Disclosure - Other Investments - Schedule of Balance Sheet and Income Statement Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureOtherInvestmentsScheduleOfBalanceSheetAndIncomeStatementInformationDetails</Role>
      <ShortName>Other Investments - Schedule of Balance Sheet and Income Statement Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>104</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R105.htm</HtmlFileName>
      <LongName>996433 - Disclosure - Other Investments - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureOtherInvestmentsAdditionalInformationDetails</Role>
      <ShortName>Other Investments - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>105</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R106.htm</HtmlFileName>
      <LongName>996463 - Disclosure - Other Financial Assets - Wana - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureOtherFinancialAssetsWanaAdditionalInformationDetails</Role>
      <ShortName>Other Financial Assets - Wana - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>106</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R107.htm</HtmlFileName>
      <LongName>996473 - Disclosure - Other Financial Assets - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureOtherFinancialAssetsAdditionalInformationDetails</Role>
      <ShortName>Other Financial Assets - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>107</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R108.htm</HtmlFileName>
      <LongName>996483 - Disclosure - Property, Plant and Equipment - Schedule of Components of Property, Plant and Equipment (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosurePropertyPlantAndEquipmentScheduleOfComponentsOfPropertyPlantAndEquipmentDetails</Role>
      <ShortName>Property, Plant and Equipment - Schedule of Components of Property, Plant and Equipment (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>108</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R109.htm</HtmlFileName>
      <LongName>996493 - Disclosure - Property, Plant and Equipment - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosurePropertyPlantAndEquipmentAdditionalInformationDetails</Role>
      <ShortName>Property, Plant and Equipment - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>109</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R110.htm</HtmlFileName>
      <LongName>996503 - Disclosure - Intangible Assets - Summary of Components of Intangible Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureIntangibleAssetsSummaryOfComponentsOfIntangibleAssetsDetails</Role>
      <ShortName>Intangible Assets - Summary of Components of Intangible Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>110</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R111.htm</HtmlFileName>
      <LongName>996513 - Disclosure - Intangible Assets - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureIntangibleAssetsAdditionalInformationDetails</Role>
      <ShortName>Intangible Assets - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>111</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R112.htm</HtmlFileName>
      <LongName>996523 - Disclosure - Intangible Assets - Summary of Estimated Amortization Expense (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureIntangibleAssetsSummaryOfEstimatedAmortizationExpenseDetails</Role>
      <ShortName>Intangible Assets - Summary of Estimated Amortization Expense (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>112</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R113.htm</HtmlFileName>
      <LongName>996533 - Disclosure - Goodwill - Changes in Carrying Amount of Goodwill (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureGoodwillChangesInCarryingAmountOfGoodwillDetails</Role>
      <ShortName>Goodwill - Changes in Carrying Amount of Goodwill (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>113</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R114.htm</HtmlFileName>
      <LongName>996543 - Disclosure - Goodwill - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureGoodwillAdditionalInformationDetails</Role>
      <ShortName>Goodwill - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>114</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R115.htm</HtmlFileName>
      <LongName>996553 - Disclosure - Other Accrued Expenses and Liabilities - Components of Other Accrued Expenses and Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureOtherAccruedExpensesAndLiabilitiesComponentsOfOtherAccruedExpensesAndLiabilitiesDetails</Role>
      <ShortName>Other Accrued Expenses and Liabilities - Components of Other Accrued Expenses and Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>115</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R116.htm</HtmlFileName>
      <LongName>996563 - Disclosure - Debt - Summary of Components of Debt (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureDebtSummaryOfComponentsOfDebtDetails</Role>
      <ShortName>Debt - Summary of Components of Debt (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>116</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R117.htm</HtmlFileName>
      <LongName>996583 - Disclosure - Debt - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureDebtAdditionalInformationDetails</Role>
      <ShortName>Debt - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>117</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R118.htm</HtmlFileName>
      <LongName>996593 - Disclosure - Debt - Summary of Required Principal Repayments Under Long-term Debt Obligations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureDebtSummaryOfRequiredPrincipalRepaymentsUnderLongtermDebtObligationsDetails</Role>
      <ShortName>Debt - Summary of Required Principal Repayments Under Long-term Debt Obligations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>118</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R119.htm</HtmlFileName>
      <LongName>996603 - Disclosure - Other Liabilities - Components of Other Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureOtherLiabilitiesComponentsOfOtherLiabilitiesDetails</Role>
      <ShortName>Other Liabilities - Components of Other Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>119</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R120.htm</HtmlFileName>
      <LongName>996623 - Disclosure - Redeemable Noncontrolling Interest - Summary of Net Change in Redeemable Noncontrolling Interests (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureRedeemableNoncontrollingInterestSummaryOfNetChangeInRedeemableNoncontrollingInterestsDetails</Role>
      <ShortName>Redeemable Noncontrolling Interest - Summary of Net Change in Redeemable Noncontrolling Interests (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>120</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R121.htm</HtmlFileName>
      <LongName>996633 - Disclosure - Redeemable Noncontrolling Interest - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureRedeemableNoncontrollingInterestAdditionalInformationDetails</Role>
      <ShortName>Redeemable Noncontrolling Interest - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>121</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R122.htm</HtmlFileName>
      <LongName>996643 - Disclosure - Share Capital - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureShareCapitalAdditionalInformationDetails</Role>
      <ShortName>Share Capital - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>122</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R123.htm</HtmlFileName>
      <LongName>996653 - Disclosure - Share Capital - Summary of Issuances of Stock Other (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureShareCapitalSummaryOfIssuancesOfStockOtherDetails</Role>
      <ShortName>Share Capital - Summary of Issuances of Stock Other (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>123</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R124.htm</HtmlFileName>
      <LongName>996663 - Disclosure - Share Capital - Summary of Warrants (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureShareCapitalSummaryOfWarrantsDetails</Role>
      <ShortName>Share Capital - Summary of Warrants (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>124</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R125.htm</HtmlFileName>
      <LongName>996673 - Disclosure - Share Capital - Summary of Warrants (Parenthetical) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureShareCapitalSummaryOfWarrantsParentheticalDetails</Role>
      <ShortName>Share Capital - Summary of Warrants (Parenthetical) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>125</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R126.htm</HtmlFileName>
      <LongName>996683 - Disclosure - Share-Based Compensation - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureShareBasedCompensationAdditionalInformationDetails</Role>
      <ShortName>Share-Based Compensation - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>126</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R127.htm</HtmlFileName>
      <LongName>996703 - Disclosure - Share-Based Compensation - Summary of the Changes in Options Outstanding (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureSharebasedCompensationSummaryOfTheChangesInOptionsOutstandingDetails</Role>
      <ShortName>Share-Based Compensation - Summary of the Changes in Options Outstanding (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>127</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R128.htm</HtmlFileName>
      <LongName>996713 - Disclosure - Share-Based Compensation - Summary of Options Outstanding (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureSharebasedCompensationSummaryOfOptionsOutstandingDetails</Role>
      <ShortName>Share-Based Compensation - Summary of Options Outstanding (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>128</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R129.htm</HtmlFileName>
      <LongName>996723 - Disclosure - Share-Based Compensation - Summary of Assumptions Applied to Establish Fair Value of Options Granted Using Black-Scholes Option Pricing Model (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureShareBasedCompensationSummaryOfAssumptionsAppliedToEstablishFairValueOfOptionsGrantedUsingBlackScholesOptionPricingModelDetails</Role>
      <ShortName>Share-Based Compensation - Summary of Assumptions Applied to Establish Fair Value of Options Granted Using Black-Scholes Option Pricing Model (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>129</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R130.htm</HtmlFileName>
      <LongName>996733 - Disclosure - Share-Based Compensation - Summary of the Changes in RSUs and PSUs (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureSharebasedCompensationSummaryOfTheChangesInRsusAndPsusDetails</Role>
      <ShortName>Share-Based Compensation - Summary of the Changes in RSUs and PSUs (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>130</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R131.htm</HtmlFileName>
      <LongName>996743 - Disclosure - Accumulated Other Comprehensive Income (Loss) - Accumulated Other Comprehensive Income (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureAccumulatedOtherComprehensiveIncomeLossAccumulatedOtherComprehensiveIncomeDetails</Role>
      <ShortName>Accumulated Other Comprehensive Income (Loss) - Accumulated Other Comprehensive Income (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureAccumulatedOtherComprehensiveIncomeLossTables</ParentRole>
      <Position>131</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R132.htm</HtmlFileName>
      <LongName>996753 - Disclosure - Noncontrolling Interests - Summary of Net Change in Noncontrolling Interests (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureNoncontrollingInterestsSummaryOfNetChangeInNoncontrollingInterestsDetails</Role>
      <ShortName>Noncontrolling Interests - Summary of Net Change in Noncontrolling Interests (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>132</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R133.htm</HtmlFileName>
      <LongName>996763 - Disclosure - Fair Value of Financial Instruments - Summary of Financial Assets and Liabilities Measured at Estimated Fair Value on a Recurring Basis (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureFairValueOfFinancialInstrumentsSummaryOfFinancialAssetsAndLiabilitiesMeasuredAtEstimatedFairValueOnRecurringBasisDetails</Role>
      <ShortName>Fair Value of Financial Instruments - Summary of Financial Assets and Liabilities Measured at Estimated Fair Value on a Recurring Basis (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>133</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R134.htm</HtmlFileName>
      <LongName>996783 - Disclosure - Fair Value of Financial Instruments - Summary of Valuation Techniques and Significant Unobservable Inputs in the Fair Value Measurement of Significant Level 3 Financial Instruments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureFairValueOfFinancialInstrumentsSummaryOfValuationTechniquesAndSignificantUnobservableInputsInFairValueMeasurementOfSignificantLevel3FinancialInstrumentsDetails</Role>
      <ShortName>Fair Value of Financial Instruments - Summary of Valuation Techniques and Significant Unobservable Inputs in the Fair Value Measurement of Significant Level 3 Financial Instruments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>134</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R135.htm</HtmlFileName>
      <LongName>996793 - Disclosure - Revenue - Summary of Disaggregation of Revenue (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureRevenueSummaryOfDisaggregationOfRevenueDetails</Role>
      <ShortName>Revenue - Summary of Disaggregation of Revenue (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>135</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R136.htm</HtmlFileName>
      <LongName>996803 - Disclosure - Revenue - Summary of Disaggregation of Revenue (Parenthetical) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureRevenueSummaryOfDisaggregationOfRevenueParentheticalDetails</Role>
      <ShortName>Revenue - Summary of Disaggregation of Revenue (Parenthetical) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>136</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R137.htm</HtmlFileName>
      <LongName>996813 - Disclosure - Revenue - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureRevenueAdditionalInformationDetails</Role>
      <ShortName>Revenue - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>137</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R138.htm</HtmlFileName>
      <LongName>996833 - Disclosure - Pharmhouse - Pharmhouse financial guarantee - Additional information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosurePharmhousePharmhouseFinancialGuaranteeAdditionalInformationDetails</Role>
      <ShortName>Pharmhouse - Pharmhouse financial guarantee - Additional information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>138</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R139.htm</HtmlFileName>
      <LongName>996863 - Disclosure - Other Income (Expense), Net - Schedule of Other Income (Expense), Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureOtherIncomeExpenseNetScheduleOfOtherIncomeExpenseNetDetails</Role>
      <ShortName>Other Income (Expense), Net - Schedule of Other Income (Expense), Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureOtherIncomeExpenseNetTables</ParentRole>
      <Position>139</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R140.htm</HtmlFileName>
      <LongName>996873 - Disclosure - Income Taxes - Summary of Net Loss Before Income Taxes (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureIncomeTaxesSummaryOfNetLossBeforeIncomeTaxesDetails</Role>
      <ShortName>Income Taxes - Summary of Net Loss Before Income Taxes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>140</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R141.htm</HtmlFileName>
      <LongName>996883 - Disclosure - Income Taxes - Summary of Income Tax (Expense) Recovery (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureIncomeTaxesSummaryOfIncomeTaxExpenseRecoveryDetails</Role>
      <ShortName>Income Taxes - Summary of Income Tax (Expense) Recovery (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>141</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R142.htm</HtmlFileName>
      <LongName>996893 - Disclosure - Income Taxes - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureIncomeTaxesAdditionalInformationDetails</Role>
      <ShortName>Income Taxes - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>142</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R143.htm</HtmlFileName>
      <LongName>996903 - Disclosure - Income Taxes - Summary of Reconciliation of Amount of Income Taxes Compared to Expected Income Taxes Calculated at Combined Federal and Provincial Enacted Statutory Tax Rate (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureIncomeTaxesSummaryOfReconciliationOfAmountOfIncomeTaxesComparedToExpectedIncomeTaxesCalculatedAtCombinedFederalAndProvincialEnactedStatutoryTaxRateDetails</Role>
      <ShortName>Income Taxes - Summary of Reconciliation of Amount of Income Taxes Compared to Expected Income Taxes Calculated at Combined Federal and Provincial Enacted Statutory Tax Rate (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>143</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R144.htm</HtmlFileName>
      <LongName>996913 - Disclosure - Income Taxes - Summary of Significant Compenents of Deferred Income Tax Assets (Liabilities) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureIncomeTaxesSummaryOfSignificantCompenentsOfDeferredIncomeTaxAssetsLiabilitiesDetails</Role>
      <ShortName>Income Taxes - Summary of Significant Compenents of Deferred Income Tax Assets (Liabilities) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>144</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R145.htm</HtmlFileName>
      <LongName>996923 - Disclosure - Income Taxes - Summary of Losses Carried Forward Available to Reduce Future Years' Taxable Income (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureIncomeTaxesSummaryOfLossesCarriedForwardAvailableToReduceFutureYearsTaxableIncomeDetails</Role>
      <ShortName>Income Taxes - Summary of Losses Carried Forward Available to Reduce Future Years' Taxable Income (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>145</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R146.htm</HtmlFileName>
      <LongName>996943 - Disclosure - Acquisitions - Summary of Consolidated Balance Sheet Impact at Acquisition of Company's Business Combinations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureAcquisitionsSummaryOfConsolidatedBalanceSheetImpactAtAcquisitionOfCompanySBusinessCombinationsDetails</Role>
      <ShortName>Acquisitions - Summary of Consolidated Balance Sheet Impact at Acquisition of Company's Business Combinations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>146</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R147.htm</HtmlFileName>
      <LongName>996953 - Disclosure - Acquisitions - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureAcquisitionsAdditionalInformationDetails</Role>
      <ShortName>Acquisitions - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>147</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R148.htm</HtmlFileName>
      <LongName>996963 - Disclosure - Acquisitions - Ace Valley - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureAcquisitionsAceValleyAdditionalInformationDetails</Role>
      <ShortName>Acquisitions - Ace Valley - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>148</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R149.htm</HtmlFileName>
      <LongName>996973 - Disclosure - Acquisitions - Supreme Cannabis - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureAcquisitionsSupremeCannabisAdditionalInformationDetails</Role>
      <ShortName>Acquisitions - Supreme Cannabis - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>149</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R150.htm</HtmlFileName>
      <LongName>996983 - Disclosure - Acquisitions - C3 - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureAcquisitionsC3AdditionalInformationDetails</Role>
      <ShortName>Acquisitions - C3 - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>150</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R151.htm</HtmlFileName>
      <LongName>996993 - Disclosure - Acquisitions - This Works - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureAcquisitionsThisWorksAdditionalInformationDetails</Role>
      <ShortName>Acquisitions - This Works - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>151</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R152.htm</HtmlFileName>
      <LongName>997003 - Disclosure - Acquisitions - BioSteel - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureAcquisitionsBiosteelAdditionalInformationDetails</Role>
      <ShortName>Acquisitions - BioSteel - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>152</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R153.htm</HtmlFileName>
      <LongName>997013 - Disclosure - Acquisitions - More Life - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureAcquisitionsMoreLifeAdditionalInformationDetails</Role>
      <ShortName>Acquisitions - More Life - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>153</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R154.htm</HtmlFileName>
      <LongName>997023 - Disclosure - Divestitures - This Works Divestiture - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureDivestituresThisWorksDivestitureAdditionalInformationDetails</Role>
      <ShortName>Divestitures - This Works Divestiture - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>154</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R155.htm</HtmlFileName>
      <LongName>997033 - Disclosure - Divestitures - Retail Divestiture - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureDivestituresRetailDivestitureAdditionalInformationDetails</Role>
      <ShortName>Divestitures - Retail Divestiture - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>155</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R156.htm</HtmlFileName>
      <LongName>997053 - Disclosure - Divestitures - Summary of Derecognized Assets and Liabilities Transferred (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureDivestituresSummaryOfDerecognizedAssetsAndLiabilitiesTransferredDetails</Role>
      <ShortName>Divestitures - Summary of Derecognized Assets and Liabilities Transferred (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>156</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R157.htm</HtmlFileName>
      <LongName>997063 - Disclosure - Divestitures - Summary of Derecognized Assets and Liabilities Transferred (Parenthetical) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureDivestituresSummaryOfDerecognizedAssetsAndLiabilitiesTransferredParentheticalDetails</Role>
      <ShortName>Divestitures - Summary of Derecognized Assets and Liabilities Transferred (Parenthetical) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>157</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R158.htm</HtmlFileName>
      <LongName>997073 - Disclosure - Acreage Arrangement - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureAcreageArrangementAdditionalInformationDetails</Role>
      <ShortName>Acreage Arrangement - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>158</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R159.htm</HtmlFileName>
      <LongName>997093 - Disclosure - Leases - Summary of Lease Right-of-use Assets and Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureLeasesSummaryOfLeaseRightOfUseAssetsAndLiabilitiesDetails</Role>
      <ShortName>Leases - Summary of Lease Right-of-use Assets and Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>159</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R160.htm</HtmlFileName>
      <LongName>997103 - Disclosure - Leases - Summary of Components of Total Lease Expense (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureLeasesSummaryOfComponentsOfTotalLeaseExpenseDetails</Role>
      <ShortName>Leases - Summary of Components of Total Lease Expense (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>160</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R161.htm</HtmlFileName>
      <LongName>997113 - Disclosure - Leases - Summary of Minimum Payments Due for Lease Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureLeasesSummaryOfMinimumPaymentsDueForLeaseLiabilitiesDetails</Role>
      <ShortName>Leases - Summary of Minimum Payments Due for Lease Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>161</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R162.htm</HtmlFileName>
      <LongName>997123 - Disclosure - Leases - Summary of Measurement of Lease Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureLeasesSummaryOfMeasurementOfLeaseLiabilitiesDetails</Role>
      <ShortName>Leases - Summary of Measurement of Lease Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>162</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R163.htm</HtmlFileName>
      <LongName>997133 - Disclosure - Leases - Summary of Right-of-use Assets Obtained in Exchange for New Lease Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureLeasesSummaryOfRightOfUseAssetsObtainedInExchangeForNewLeaseLiabilitiesDetails</Role>
      <ShortName>Leases - Summary of Right-of-use Assets Obtained in Exchange for New Lease Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>163</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R164.htm</HtmlFileName>
      <LongName>997143 - Disclosure - Leases - Summary of Weighted Average Remaining Lease Term (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureLeasesSummaryOfWeightedAverageRemainingLeaseTermDetails</Role>
      <ShortName>Leases - Summary of Weighted Average Remaining Lease Term (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>164</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R165.htm</HtmlFileName>
      <LongName>997153 - Disclosure - Leases - Summary of Weighted Average Discount Rate (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureLeasesSummaryOfWeightedAverageDiscountRateDetails</Role>
      <ShortName>Leases - Summary of Weighted Average Discount Rate (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>165</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R166.htm</HtmlFileName>
      <LongName>997163 - Disclosure - Related Party - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureRelatedPartyAdditionalInformationDetails</Role>
      <ShortName>Related Party - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>166</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R167.htm</HtmlFileName>
      <LongName>997173 - Disclosure - Commitments and Contingencies - Summary of Annual Minimum Commitments Associated with Contractual Agreements (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureCommitmentsAndContingenciesSummaryOfAnnualMinimumCommitmentsAssociatedWithContractualAgreementsDetails</Role>
      <ShortName>Commitments and Contingencies - Summary of Annual Minimum Commitments Associated with Contractual Agreements (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>167</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R168.htm</HtmlFileName>
      <LongName>997193 - Disclosure - Segmented Information - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureSegmentedInformationAdditionalInformationDetails</Role>
      <ShortName>Segmented Information - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>168</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R169.htm</HtmlFileName>
      <LongName>997203 - Disclosure - Segmented Information - Summary of Reconciliation of Operating Profit (Loss) from Segments to Consolidated (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureSegmentedInformationSummaryOfReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedDetails</Role>
      <ShortName>Segmented Information - Summary of Reconciliation of Operating Profit (Loss) from Segments to Consolidated (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>169</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R170.htm</HtmlFileName>
      <LongName>997213 - Disclosure - Segmented Information - Summary of Reconciliation of Operating Profit (Loss) from Segments to Consolidated (Parenthetical) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureSegmentedInformationSummaryOfReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedParentheticalDetails</Role>
      <ShortName>Segmented Information - Summary of Reconciliation of Operating Profit (Loss) from Segments to Consolidated (Parenthetical) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>170</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R171.htm</HtmlFileName>
      <LongName>997223 - Disclosure - Segmented Information - Summary of Disaggregation of Net Revenue by Geographic Area (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureSegmentedInformationSummaryOfDisaggregationOfNetRevenueByGeographicAreaDetails</Role>
      <ShortName>Segmented Information - Summary of Disaggregation of Net Revenue by Geographic Area (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>171</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R172.htm</HtmlFileName>
      <LongName>997233 - Disclosure - Segmented Information - Summary of Disaggregation of Long-lived Tangible Assets by Geographic Areas (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/Role_DisclosureSegmentedInformationSummaryOfDisaggregationOfLongLivedTangibleAssetsByGeographicAreasDetails</Role>
      <ShortName>Segmented Information - Summary of Disaggregation of Long-lived Tangible Assets by Geographic Areas (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>172</Position>
    </Report>
    <Report instance="cgc-20250331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R173.htm</HtmlFileName>
      <LongName>997243 - Disclosure - Subsequent Events - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.canopygrowth.com/20250331/taxonomy/role/DisclosureSubsequentEventsAdditionalInformationDetails</Role>
      <ShortName>Subsequent Events - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>173</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File doctype="10-K" isDefinitelyFs="true" isUsgaap="true" original="cgc-20250331.htm">cgc-20250331.htm</File>
    <File>cgc-20250331.xsd</File>
  </InputFiles>
  <SupplementalFiles>
    <File>img127845808_0.jpg</File>
    <File>img127845808_1.jpg</File>
    <File>img127845808_10.jpg</File>
    <File>img127845808_11.jpg</File>
    <File>img127845808_12.jpg</File>
    <File>img127845808_13.jpg</File>
    <File>img127845808_14.jpg</File>
    <File>img127845808_15.jpg</File>
    <File>img127845808_16.jpg</File>
    <File>img127845808_17.jpg</File>
    <File>img127845808_18.jpg</File>
    <File>img127845808_2.jpg</File>
    <File>img127845808_3.jpg</File>
    <File>img127845808_4.jpg</File>
    <File>img127845808_5.jpg</File>
    <File>img127845808_6.jpg</File>
    <File>img127845808_7.jpg</File>
    <File>img127845808_8.jpg</File>
    <File>img127845808_9.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy items="1">http://fasb.org/srt/2024</BaseTaxonomy>
    <BaseTaxonomy items="1422">http://fasb.org/us-gaap/2024</BaseTaxonomy>
    <BaseTaxonomy items="12">http://xbrl.sec.gov/cyd/2024</BaseTaxonomy>
    <BaseTaxonomy items="40">http://xbrl.sec.gov/dei/2024</BaseTaxonomy>
    <BaseTaxonomy items="10">http://xbrl.sec.gov/ecd/2024</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>false</HasPresentationLinkbase>
  <HasCalculationLinkbase>false</HasCalculationLinkbase>
</FilingSummary>
