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Segment disclosure - Disclosure of detailed information about geographic net assets (Details) - CAD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | $ 1,553,111 | $ 1,378,253
Royalties [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 919,663 | 879,075
Streams [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 619,201 | 484,590
Offtakes [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 14,247 | 14,588
North America [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 824,783 | 890,502
North America [Member] | Royalties [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 638,871 | 664,985
North America [Member] | Streams [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 185,912 | 225,517
North America [Member] | Offtakes [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 0 | 0
South America [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 346,007 | 335,405
South America [Member] | Royalties [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 182,858 | 157,552
South America [Member] | Streams [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 163,149 | 177,853
South America [Member] | Offtakes [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 0 | 0
Australia [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 214,872 | 26,917
Australia [Member] | Royalties [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 11,257 | 17,345
Australia [Member] | Streams [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 194,267 | 0
Australia [Member] | Offtakes [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 9,348 | 9,572
Africa [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 71,809 | 24,228
Africa [Member] | Royalties [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 71,809 | 24,228
Africa [Member] | Streams [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 0 | 0
Africa [Member] | Offtakes [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 0 | 0
Asia [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 34,393 | 35,219
Asia [Member] | Royalties [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 0 | 0
Asia [Member] | Streams [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 29,494 | 30,203
Asia [Member] | Offtakes [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 4,899 | 5,016
Europe [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 61,247 | 65,982
Europe [Member] | Royalties [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 14,868 | 14,965
Europe [Member] | Streams [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | 46,379 | 51,017
Europe [Member] | Offtakes [Member] |  |
Disclosure of operating segments [line items] |  |
Royalty, stream and other interests | $ 0 | $ 0

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