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Segmented information - Information about major customers (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
SEGMENTED INFORMATION |  |
Revenues | $ 924.5 | $ 786.5
Major Customer |  |
SEGMENTED INFORMATION |  |
Percentage of entity's revenue | 90.00% | 91.60%
Customer |  |
SEGMENTED INFORMATION |  |
Revenues | $ 832.4 | $ 720.7
Rainy River | Customers one |  |
SEGMENTED INFORMATION |  |
Revenues | 324.1 | 206.0
Rainy River | Customers two |  |
SEGMENTED INFORMATION |  |
Revenues | 241.3 | 198.6
Rainy River | Customers three |  |
SEGMENTED INFORMATION |  |
Revenues |  | 99.3
New Afton | Customers one |  |
SEGMENTED INFORMATION |  |
Revenues | 167.1 | 125.7
New Afton | Customers two |  |
SEGMENTED INFORMATION |  |
Revenues | $ 99.9 | $ 91.1

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