Document and Entity Information - CAD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Mar. 31, 2026 |
Jun. 11, 2026 |
Sep. 30, 2025 |
|
| Cover [Abstract] | |||
| Document Type | 10-K | ||
| Amendment Flag | false | ||
| Document Period End Date | Mar. 31, 2026 | ||
| Document Fiscal Year Focus | 2026 | ||
| Document Fiscal Period Focus | FY | ||
| Entity Registrant Name | Canopy Growth Corporation | ||
| Entity Central Index Key | 0001737927 | ||
| Entity Current Reporting Status | Yes | ||
| Entity Voluntary Filers | No | ||
| Entity Interactive Data Current | Yes | ||
| Current Fiscal Year End Date | --03-31 | ||
| Entity Filer Category | Accelerated Filer | ||
| Entity Well Known Seasoned Issuer | No | ||
| Entity Public Float | $ 485 | ||
| Entity Common Stock, Shares Outstanding | 422,154,892 | ||
| Entity Shell Company | false | ||
| Entity Small Business | false | ||
| Entity Emerging Growth Company | false | ||
| Title of 12(b) Security | Common shares, no par value | ||
| Trading Symbol | CGC | ||
| Security Exchange Name | NASDAQ | ||
| Entity File Number | 001-38496 | ||
| Entity Incorporation, State or Country Code | Z4 | ||
| Entity Tax Identification Number | 00-0000000 | ||
| Entity Address, Address Line One | 1 Hershey Drive | ||
| Entity Address, City or Town | Smiths Falls | ||
| Entity Address, State or Province | ON | ||
| Entity Address, Postal Zip Code | K7A 0A8 | ||
| City Area Code | 855 | ||
| Local Phone Number | 558-9333 | ||
| Document Annual Report | true | ||
| Document Transition Report | false | ||
| ICFR Auditor Attestation Flag | true | ||
| Document Financial Statement Error Correction Flag | true | ||
| Document Financial Statement Restatement Recovery Analysis [Flag] | true | ||
| Auditor Firm ID | 127 | ||
| Auditor Name | PKF O’Connor Davies, LLP | ||
| Auditor Location | New York, New York | ||
| Auditor Opinion [Text Block] | Opinion on the Consolidated Financial Statements We have audited the accompanying consolidated balance sheets of Canopy Growth Corporation and subsidiaries (the “Company”) as of March 31, 2026, 2025, and 2024 the related consolidated statements of operations and comprehensive loss, shareholders’ equity, and cash flows for each of the three years in the period ended March 31, 2026, and the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of March 31, 2026, 2025, and 2024 and the results of its operations and its cash flows for each of the three years in the period ended March 31, 2026, in conformity with accounting principles generally accepted in the United States of America. We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (“PCAOB”), the Company’s internal control over financial reporting as of March 31, 2026, based on criteria established in Internal Control–Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO), and our report dated June 15, 2026, expressed an adverse opinion on the effectiveness of the Company’s internal control over financial reporting. Restatement of previously issued Consolidated Financial Statements As discussed in Note 2 to the consolidated financial statements, the 2025 and 2024 consolidated financial statements have been restated to correct misstatements. Basis for Opinion These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s consolidated financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB. We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion. Opinion on Internal Control Over Financial Reporting We have audited Canopy Growth Corporation’s (the “Company”) internal control over financial reporting as of March 31, 2026, based on criteria established in Internal Control–Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (“COSO”). In our opinion, because of the effect of the material weakness described in the following paragraphs on the achievement of the objectives of the control criteria, the Company has not maintained effective internal control over financial reporting as of March 31, 2026, based on criteria established in Internal Control–Integrated Framework (2013) issued by COSO. A material weakness is a control deficiency, or a combination of deficiencies, in internal control over financial reporting, such that there is a reasonable possibility that a material misstatement of the company’s annual or interim financial statements will not be prevented or detected on a timely basis. A material weakness has been identified and included in management’s assessment in that a control designed to review and approve the financial reporting implications of significant technical accounting matters, specifically the classification of equity-linked instruments as either equity or liabilities, was not designed or operating effectively. This material weakness was considered in determining the nature, timing, and extent of audit tests applied in our audit of the March 31, 2026 consolidated financial statements, and this report does not affect our report dated June 15, 2026, on those consolidated financial statements. The Company acquired MTL Cannabis Corp. (the “Acquired Entity”) during the year ended March 31, 2026, and management excluded the Acquired Entity from its assessment of the effectiveness of the Company’s internal control over financial reporting as of March 31, 2026. The Acquired Entity’s internal control over financial reporting was associated with approximately 13.4% of total assets and 1.2% of net revenues included in the consolidated financial statements of the Company as of and for the year ended March 31, 2026. Our audit of internal control over financial reporting of the Company also excluded an evaluation of the internal control over financial reporting of the Acquired Entity. We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (“PCAOB”), the consolidated balance sheets of the Company as of March 31, 2026, 2025, and 2024, and the related consolidated statements of operations and comprehensive loss, shareholders’ equity, and cash flows for each of the three years in the period ended March 31, 2026, and our report dated June 15, 2026, expressed an unqualified opinion on those consolidated financial statements. |