Nature of activities (Narrative) (Details) - Canadian Malartic Mine [Member] |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Minimum [Member] | |
| Nature of activities [Line Items] | |
| Net smelter return | 3.00% |
| Maximum [Member] | |
| Nature of activities [Line Items] | |
| Net smelter return | 5.00% |