Exploration and evaluation - Schedule of exploration and evaluation assets (Details) - CAD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Exploration and evaluation | ||
| Net book value - Beginning of year | $ 86,258 | $ 70,135 |
| Additions | 6,603 | 9,141 |
| Depreciation capitalized | 823 | 640 |
| Currency translation adjustments | (4,049) | 6,342 |
| Net book value - End of year | 89,635 | 86,258 |
| Cost | 189,842 | 186,465 |
| Accumulated impairment | (100,207) | (100,207) |
| Exploration and evaluation | $ 89,635 | $ 86,258 |