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Segment disclosure (Narrative) (Details) - CAD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Disclosure of operating segments [line items] |  |
Revenues | $ 217,809 | $ 224,877
North America from Canada [Member] |  |
Disclosure of operating segments [line items] |  |
Percentage of entity's revenue | 91.00% | 83.00%
Percentage of North America's net interests | 81.00% | 82.00%
Three royalty/stream interests [Member] |  |
Disclosure of operating segments [line items] |  |
Revenues | $ 132,300 | $ 122,400
Percentage of entity's revenue | 61.00% | 61.00%
One royalty interest [Member] |  |
Disclosure of operating segments [line items] |  |
Revenues | $ 78,800 | $ 81,300
Precious metals [Member] |  |
Disclosure of operating segments [line items] |  |
Percentage of entity's revenue | 85.00% | 89.00%
Precious metals [Member] | Excluding offtakes [Member] |  |
Disclosure of operating segments [line items] |  |
Percentage of entity's revenue |  | 87.00%
Diamonds [Member] |  |
Disclosure of operating segments [line items] |  |
Percentage of entity's revenue | 14.00% | 9.00%
Diamonds [Member] | Excluding offtakes [Member] |  |
Disclosure of operating segments [line items] |  |
Percentage of entity's revenue |  | 11.00%

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