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PROVISIONS - Narrative (Details) $ in Millions, $ in Millions | Dec. 31, 2021 USD ($) | Dec. 31, 2021 CAD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2020 CAD ($)
--- | --- | --- | --- | ---
Disclosure of other provisions [line items] |  |  |  |
Outstanding borrowing amount | $ 1.7 |  | $ 1.7 |
Restricted cash | 42.2 |  | 38.6 |
IAMGOLD Essakane S.A. ("Essakane S.A.") |  |  |  |
Disclosure of other provisions [line items] |  |  |  |
Collateral, restricted cash guaranteeing asset retirement obligations |  |  | 38.6 |
Doyon division including the Westwood mine2 |  |  |  |
Disclosure of other provisions [line items] |  |  |  |
Bonds outstanding to guarantee asset retirement obligations related to the Doyon division | 132.3 | $ 167.4 | 131.2 | $ 167.4
Côté Gold Project |  |  |  |
Disclosure of other provisions [line items] |  |  |  |
Bonds outstanding to guarantee asset retirement obligations related to the Doyon division | $ 37.8 | $ 47.9 | $ 37.6 | $ 47.9

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