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v3.21.1

DEFERRED REVENUE (Narrative) (Details) $ in Thousands, $ in Millions |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
Mar. 03, 2017 USD ($) oz | Apr. 24, 2020 CAD ($) oz | Mar. 31, 2010 | Dec. 31, 2020 CAD ($)
Gibraltar Joint Venture [Member] |  |  |  |
Disclosure Of Deferred Income [Line Items] |  |  |  |
Proportion of ownership interest in joint venture |  |  | 75.00% | 75.00%
Osisko Gold Royalties Ltd [Member] |  |  |  |
Disclosure Of Deferred Income [Line Items] |  |  |  |
Upfront cash deposit received | $ | $ 33 |  |  |
Quantity of silver deliverable | oz | 5,900,000 |  |  |
Percentage of production to be delivered after threshold | 35.00% |  |  |
Deferred revenue deposit | $ |  | $ 8,510 |  | $ 8,510
Cash received per ounce of silver deliveries | oz | 2.75 |  |  |
Successive renewal term of sale agreement | 10 years |  |  |
Osisko Gold Royalties Ltd [Member] | Bottom of range [Member] |  |  |  |
Disclosure Of Deferred Income [Line Items] |  |  |  |
Successive renewal term of sale agreement | 50 years |  |  |

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