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Intangible Assets and Goodwill - Narrative (Details) |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Mar. 31, 2019 CAD ($) | Jun. 30, 2020 CAD ($) year | Dec. 31, 2019 CAD ($) | Jun. 30, 2020 CAD ($) year | Jun. 30, 2019 CAD ($)
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Goodwill |  | $ 928,432,000 |  | $ 928,432,000 | $ 3,172,550,000
Impairment loss recognised in profit or loss, intangible assets and goodwill |  |  |  | 2,544,144,000 | 9,002,000
Impairment loss recognised in profit or loss, property, plant and equipment |  |  |  | 148,234,000 |
Canadian Cannabis CGU |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Indefinite life intangibles |  | 173,400,000 |  | 173,400,000 | 319,100,000
Goodwill |  | 890,300,000 |  | 890,300,000 | 3,200,000,000
U.S. CBD GCU |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Goodwill |  | $ 38,200,000 |  | 38,200,000 | 0
Impairment loss recognised in profit or loss, goodwill |  |  |  | 0 |
Canadian Cannabis CGU |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Impairment loss recognised in profit or loss, intangible assets and goodwill |  |  |  | 0 | 0
European Cannabis CGU |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Impairment loss recognised in profit or loss, intangible assets and goodwill |  |  |  | 0 | 0
Latin American CGU |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Impairment loss recognised in profit or loss, intangible assets and goodwill |  |  | $ 152,300,000 |  |
Impairment loss recognised in profit or loss, property, plant and equipment |  |  | 8,800,000 |  |
European Hemp CGU |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Impairment loss recognised in profit or loss, property, plant and equipment |  |  | 7,000,000 |  |
Analytical Testing CGU |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Impairment loss recognised in profit or loss, intangible assets and goodwill |  |  | 12,800,000 |  |
Patient Consulting CGU |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Impairment loss recognised in profit or loss, intangible assets and goodwill |  |  | 2,500,000 |  |
Recoverable amount of CGU |  |  | 500,000 |  |
Permits and licenses |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Impairment loss recognised in profit or loss, intangible assets and goodwill |  |  |  | 105,345,000 | 0
Permits and licenses | Canadian Cannabis CGU |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Impairment loss recognised in profit or loss, intangible assets other than goodwill |  |  |  | 100,400,000 | 4,000,000
Goodwill |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Impairment loss recognised in profit or loss, intangible assets and goodwill |  |  |  |  | $ 3,890,000
Impairment loss recognised in profit or loss, goodwill |  |  |  | $ 2,285,081,000 |
Permits and licenses | Latin American CGU |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Impairment loss recognised in profit or loss, intangible assets other than goodwill |  |  | $ 143,400,000 |  |
Forecast period | Canadian Cannabis CGU |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Significant unobservable input, assets | year |  | 5 |  | 5 |
Terminal growth rate | Canadian Cannabis CGU |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Significant unobservable input, assets |  |  | 0.030 |  |
Terminal growth rate | Latin American CGU |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Significant unobservable input, assets |  |  | 0.030 |  |
Terminal growth rate | European Hemp CGU |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Significant unobservable input, assets |  |  | 0.030 |  |
Terminal growth rate | Analytical Testing CGU |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Significant unobservable input, assets |  |  | 0.030 |  |
Terminal growth rate | Goodwill | U.S. CBD GCU |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Significant unobservable input, assets |  | 0.030 |  | 0.030 |
Discount rate | Canadian Cannabis CGU |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Significant unobservable input, assets |  |  | 0.115 |  |
Discount rate | Latin American CGU |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Significant unobservable input, assets |  |  | 0.318 |  |
Discount rate | European Hemp CGU |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Significant unobservable input, assets |  |  | 0.150 |  |
Discount rate | Analytical Testing CGU |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Significant unobservable input, assets |  |  | 0.140 |  |
Discount rate | Goodwill | U.S. CBD GCU |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Significant unobservable input, assets |  | 0.203 |  | 0.203 |
Horizontally Integrated Businesses |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Impairment loss recognised in profit or loss, intangible assets other than goodwill | $ (1,100,000) |  |  |  |
Impairment loss recognised in profit or loss, goodwill | $ (3,900,000) |  |  |  |
Cannabis |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Recoverable amount of CGU |  | $ 3,700,000,000 | $ 4,700,000,000 | $ 3,700,000,000 |
Impairment loss recognised in profit or loss, goodwill |  | $ (1,520,000,000) | $ 762,200,000 |  |
Cannabis | Terminal growth rate | Goodwill |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Significant unobservable input, assets |  | 0.030 |  | 0.030 | 0.030
Cannabis | Discount rate | Goodwill |  |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |  |
Significant unobservable input, assets |  | 0.161 |  | 0.161 | 0.135

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