| Line Item | Dec 31, 2025 | Dec 31, 2024 | Dec 31, 2023 | Dec 31, 2022 | Dec 31, 2021 | Dec 31, 2020 | Dec 31, 2019 | Dec 31, 2018 |
|---|---|---|---|---|---|---|---|---|
| Profit or loss [abstract] | ||||||||
| Gold revenue | ||||||||
| Cost of sales | ||||||||
| Production costs (Note 24) | ||||||||
| Depreciation and depletion (Note 9) | ||||||||
| Royalties and production taxes | ||||||||
| Total cost of sales | ||||||||
| Gross profit | ||||||||
| General and administrative | ||||||||
| Share-based payments (Note 14) | ||||||||
| Non-recoverable input taxes | ||||||||
| Foreign exchange losses | ||||||||
| Share of net (loss) income of associates (Note 10) | ||||||||
| Community relations | ||||||||
| Write-down of mining interests (Note 9) | ||||||||
| Impairment of long-lived assets (Notes 9) | ||||||||
| Gain on sale of mining interests (Note 9) | ||||||||
| Gain on sale of shares in associate (Note 10) | ||||||||
| Other expense (Note 16) | ||||||||
| Operating income (loss) | ||||||||
| Losses on derivative instruments (Note 17) | ||||||||
| Change in fair value of gold stream (Note 18) | ||||||||
| Interest and financing expense | ||||||||
| Interest income | ||||||||
| Losses on dilution of associate (Note 10) | ||||||||
| Other income (expense) | ||||||||
| Income (loss) from operations before taxes | ||||||||
| Current income tax, withholding and other taxes (Note 21) | ||||||||
| Deferred income tax recovery (Note 21) | ||||||||
| Net income (loss) | ||||||||
| Attributable to: | ||||||||
| Shareholders of the Company | ||||||||
| Non-controlling interests (Note 15) |