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SUPPLEMENTAL CASH FLOW INFORMATION (Schedule of significant non-cash financing and investing transactions) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Supplemental Cashflow Information [abstract] |  |
Acquisition of Roxgold |  | $ 594,666
Mineral properties, plant and equipment changes in closure and reclamation provision | $ 5,021 | (3,729)
Stock options allocated to share capital upon exercise |  | 136
Additions on right of use assets | (2,774) | (2,551)
Fair value of share units allocated to share capital upon settlement | $ 2,525 | $ 4,468

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