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Share-Based Compensation - Stock Options that Remain Outstanding, by Exercise Price Range (Details) | Jun. 30, 2020 shares $ / shares | Jun. 30, 2019 shares | Jun. 30, 2018 shares
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Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |
Weighted Average Remaining Life | 3 years 11 months 11 days |  |
Options outstanding (in shares) | 5,748,503 | 5,693,397 | 2,346,343
Options Exercisable (in shares) | 2,648,129 |  |
Exercise Price Range One |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |
Weighted Average Remaining Life | 2 years 7 months 8 days |  |
Options outstanding (in shares) | 96,383 |  |
Options Exercisable (in shares) | 72,949 |  |
Exercise Price Range Two |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |
Weighted Average Remaining Life | 3 years 1 month 17 days |  |
Options outstanding (in shares) | 1,848,143 |  |
Options Exercisable (in shares) | 1,001,407 |  |
Exercise Price Range Three |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |
Weighted Average Remaining Life | 3 years 4 months 5 days |  |
Options outstanding (in shares) | 1,441,674 |  |
Options Exercisable (in shares) | 598,656 |  |
Exercise Price Range Four |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |
Weighted Average Remaining Life | 5 years 4 months 12 days |  |
Options outstanding (in shares) | 1,928,815 |  |
Options Exercisable (in shares) | 758,568 |  |
Exercise Price Range Five |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |
Weighted Average Remaining Life | 3 years 4 months 9 days |  |
Options outstanding (in shares) | 433,488 |  |
Options Exercisable (in shares) | 216,549 |  |
Bottom of range | Exercise Price Range One |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |
Exercise price of outstanding share options (CAD per share) | $ / shares | $ 3.54 |  |
Bottom of range | Exercise Price Range Two |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |
Exercise price of outstanding share options (CAD per share) | $ / shares | 21.72 |  |
Bottom of range | Exercise Price Range Three |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |
Exercise price of outstanding share options (CAD per share) | $ / shares | 84.00 |  |
Bottom of range | Exercise Price Range Four |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |
Exercise price of outstanding share options (CAD per share) | $ / shares | 120.00 |  |
Bottom of range | Exercise Price Range Five |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |
Exercise price of outstanding share options (CAD per share) | $ / shares | 132.00 |  |
Top of range | Exercise Price Range One |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |
Exercise price of outstanding share options (CAD per share) | $ / shares | 19.80 |  |
Top of range | Exercise Price Range Two |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |
Exercise price of outstanding share options (CAD per share) | $ / shares | 83.88 |  |
Top of range | Exercise Price Range Three |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |
Exercise price of outstanding share options (CAD per share) | $ / shares | 119.88 |  |
Top of range | Exercise Price Range Four |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |
Exercise price of outstanding share options (CAD per share) | $ / shares | 131.52 |  |
Top of range | Exercise Price Range Five |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |
Exercise price of outstanding share options (CAD per share) | $ / shares | $ 202.33 |  |

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