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ACQUISITIONS - Narrative (Details) € / shares in Units, € in Millions, shares in Millions, $ in Millions |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Feb. 13, 2024 USD ($) shares | Jan. 23, 2024 USD ($) shares | Jan. 23, 2024 EUR (€) € / shares shares | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Feb. 27, 2024 | Dec. 31, 2022 USD ($)
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |
Cote repurchase option fee |  |  |  | $ 32.7 | $ 0.0 |  |
Cash and cash equivalents |  |  |  | 347.5 | 367.1 |  | $ 407.8
Total equity |  |  |  | $ 3,400.7 | $ 2,264.1 |  | $ 2,206.8
Vanstar Acquisition |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |
Consideration transferred (in shares) | shares | 12.0 |  |  |  |  |  |
Ownership interest acquired | 25.00% |  |  |  |  |  |
Ownership percentage | 100.00% |  |  |  |  |  |
Percentage of acquired royalties held | 1.00% |  |  |  |  |  |
Cote repurchase option fee | $ 29.6 |  |  |  |  |  |
Transaction costs | 1.5 |  |  |  |  |  |
Cash and cash equivalents | $ 0.1 |  |  |  |  |  |
Number of common shares owned (in shares) | shares | 0.2 |  |  |  |  |  |
Total equity | $ 0.4 |  |  |  |  |  |
Euro Ressources S.A. |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |
Consideration transferred |  | $ 23.7 | € 21.9 |  |  |  |
Ownership percentage |  | 100.00% |  |  |  | 90.00% |
Percentage of acquired royalties held |  |  |  |  |  | 10.00% |
Transaction costs |  | $ 1.2 |  |  |  |  |
Number of common shares owned (in shares) | shares |  | 62.5 | 62.5 |  |  |  |
Cash consideration per share | € / shares |  |  | € 3.50 |  |  |  |
Non-controlling interest |  | $ 3.0 |  |  |  |  |
Increase (decrease) in equity |  | $ 20.7 |  |  |  |  |

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