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FINANCIAL INSTRUMENTS - Narrative (Details) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 USD ($) $ / oz | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Disclosure of detailed information about financial instruments [line items] |  |  |
Cash and cash equivalents | $ | $ 347,500,000 | $ 367,100,000 | $ 407,800,000
Percentage of reasonably possible increase | 10.00% |  |
Percentage of reasonably possible decrease | 10.00% |  |
2022 Prepay Arrangements |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Gold floor price, per ounce (in usd per ounce) | $ / oz | 1,700 |  |
Gold cap price, per ounce (in usd per ounce) | $ / oz | 2,100 |  |
Gold option increase price, per ounce (in usd per ounce) | $ / oz | 2,100 |  |
2024 Q2 Prepay Arrangements |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Gold floor price, per ounce (in usd per ounce) | $ / oz | 2,100 |  |
Gold cap price, per ounce (in usd per ounce) | $ / oz | 2,925 |  |
Gold option increase price, per ounce (in usd per ounce) | $ / oz | 2,925 |  |
Brent Crude Oil Option Contracts (barrels) | Cash flow hedges | Commodity price risk |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Risk exposure associated with instruments sharing characteristic | $ | $ 0 |  |
Gold price contracts | Cash flow hedges | Commodity price risk |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Risk exposure associated with instruments sharing characteristic | $ | 0 |  |
Gold price Contracts |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Realized hedge losses recognized in profit or loss | $ | 2,200,000 | $ 1,100,000 |
Côté Gold UJV |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Cash and cash equivalents | $ | 46,000,000.0 |  |
Essakane mine |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Cash and cash equivalents | $ | $ 130,200,000 |  |

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