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DISPOSAL GROUP CLASSIFIED AS HELD FOR SALE AND DISCONTINUED OPERATIONS - Asset Classified As Held For Sale In The Comparative Period (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Disclosure of analysis of single amount of discontinued operations [line items]    
Revenue $ 36,958 $ 0
Cost of sales (28,861) 0
Depletion, depreciation and amortization (4,528) 0
Mine operating income 3,569 0
Expenses    
Exploration, evaluation and pre-development 38,809 10,477
General and administrative 17,090 10,456
Loss before the following (58,859) (28,447)
Profit (loss) before tax (91,030) 96,673
Current tax expense 0 (200)
Income from discontinued operations for the period $ 0 11,603
Disposal groups classified as held for sale | South Arturo    
Disclosure of analysis of single amount of discontinued operations [line items]    
Revenue   31,991
Cost of sales   (17,207)
Depletion, depreciation and amortization   (1,691)
Mine operating income   13,093
Expenses    
Exploration, evaluation and pre-development   1,034
General and administrative   175
Loss before the following   11,884
Environmental rehabilitation accretion   (44)
Other   16
Other expense   (28)
Profit (loss) before tax   11,856
Current tax expense   (253)
Income from discontinued operations for the period   $ 11,603