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Warrants | 12 Months Ended
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Dec. 31, 2021
Warrants [Abstract] |
Warrants [Text Block] | 22. Warrants As at December 31, 2021 and December 31, 2020, 5,480,000 warrants were outstanding and entitled the holder to purchase one common share of Osisko at a price of $36.50 until February 18, 2022. Subsequently to year-end, the warrants expired unexercised.

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