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Fair Value of Financial Instruments - Narrative (Details) - Contingent consideration payable $ in Millions | 12 Months Ended
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Jun. 30, 2020 CAD ($) month | Jun. 30, 2019 CAD ($) month
Estimated probability of achieving milestones |  |
Disclosure of significant unobservable inputs used in fair value measurement of liabilities [line items] |  |
Significant unobservable input, liabilities | 0.32 | 1.00
Percentage of reasonably possible decrease in unobservable input, liabilities | 10.00% | 10.00%
Decrease in fair value measurement due to reasonably possible decrease in unobservable input, liabilities | $ (1.9) | $ (2.8)
Discount rate |  |
Disclosure of significant unobservable inputs used in fair value measurement of liabilities [line items] |  |
Significant unobservable input, liabilities | 0.0138 |
Percentage of reasonably possible decrease in unobservable input, liabilities | 5.00% | 5.00%
Percentage of reasonably possible increase in unobservable input, liabilities | 5.00% | 5.00%
Discount rate | Bottom of range |  |
Disclosure of significant unobservable inputs used in fair value measurement of liabilities [line items] |  |
Significant unobservable input, liabilities |  | 0.0486
Decrease in fair value measurement due to reasonably possible decrease in unobservable input, liabilities | $ 0.2 | $ 0.3
Increase (decrease) in fair value measurement due to reasonably possible increase in unobservable input, liabilities | 0.2 | $ 0.3
Discount rate | Top of range |  |
Disclosure of significant unobservable inputs used in fair value measurement of liabilities [line items] |  |
Significant unobservable input, liabilities |  | 0.2276
Expected timing of achieving milestones |  |
Disclosure of significant unobservable inputs used in fair value measurement of liabilities [line items] |  |
Increase (decrease) in fair value measurement due to reasonably possible increase in unobservable input, liabilities | $ 0.1 | $ (0.4)
Months delayed expected timing of achieving milestones | month | 6 | 6

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