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ACQUISITIONS, DIVESTITURES AND CONTINUED OPERATIONS - Acquisition - Assets Acquisition (Details) $ / shares in Units, Unit_Standard_pure_0v22vGNdGEu70JN95VvM_Q in Millions, $ in Millions |  |  | 12 Months Ended
--- | --- | --- | ---
Feb. 24, 2022 USD ($) $ / shares | Feb. 23, 2022 $ / shares | Dec. 31, 2023 USD ($) $ / shares | Dec. 31, 2022 $ / shares
Purchase price |  |  |  |
Cash consideration |  |  | $ 1,061.5 |
Total purchase price |  |  | 1,391.9 |
Acquisition costs |  |  | $ 14.6 |
Share price | $ / shares |  | $ 7.01 | $ 4.88 | $ 4.41
Common shares |  |  |  |
Purchase price |  |  |  |
Purchase Price |  |  | $ 271.6 |
Number shares issued |  |  | 49.3 |
Share option |  |  |  |
Purchase price |  |  |  |
Purchase Price |  |  | $ 39.5 |
Number shares issued |  |  | 9.9 |
Contingent value rights |  |  |  |
Purchase price |  |  |  |
Purchase Price |  |  | $ 4.7 |
Number shares issued |  |  | 59.3 |
Great Bear Resources Ltd |  |  |  |
Purchase price |  |  |  |
Purchase Price | $ 1,391.9 |  |  |
Number shares issued | 49.3 |  |  |
Share price | $ / shares | $ 0.1330 |  |  |
Purchase price allocation |  |  |  |
Total property, plant and equipment |  |  | $ 1,368.4 |
Net working capital |  |  | 23.5 |
Total net assets acquired |  |  | 1,391.9 |
Great Bear Resources Ltd | Tangible Exploration And Evaluation Assets [Member] |  |  |  |
Purchase price allocation |  |  |  |
Total property, plant and equipment |  |  | 1,367.8 |
Great Bear Resources Ltd | Land, plant and equipment |  |  |  |
Purchase price allocation |  |  |  |
Total property, plant and equipment |  |  | $ 0.6 |
Great Bear Resources Ltd | Share option |  |  |  |
Purchase price |  |  |  |
Number shares issued | 9.9 |  |  |
Great Bear Resources Ltd | Contingent value rights |  |  |  |
Purchase price |  |  |  |
Number shares issued | 59.3 |  |  |

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