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v3.21.1

Supplemental Cashflow Information (Schedule of significant non-cash financing and investing transactions) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Supplemental Cashflow Information [abstract] |  |
Mineral properties, plant and equipment changes in closure and reclamation provision | $ (9,339) | $ (14,807)
Fair value of stock options allocated to share capital upon exercise | 427 |
Additions on right of use assets | (2,715) | (22,260)
Fair value of share units allocated to share capital upon settlement | $ 3,081 | $ 1,678

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- Definition Noncash financing and investing transactions related to share units allocated to reserve upon settlement. + References No definition available. + Details
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