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CLOSURE AND RECLAMATION PROVISIONS (Schedule of Closure and Rehabilitation Provisions) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Disclosure of other provisions [line items]    
Less: Current portion $ (2,177) $ (1,882)
Non-current portion 51,128 54,230
Provision for decommissioning, restoration and rehabilitation costs [member]    
Disclosure of other provisions [line items]    
Balance at beginning 56,112 40,350
Acquisition of Roxgold   11,122
Changes in estimate (5,021) 3,729
Reclamation expenditures (623) (353)
Accretion 2,364 1,449
Effect of changes in foreign exchange rates 473 (185)
Balance at ending 53,305 56,112
Less: Current portion (2,177) (1,882)
Non-current portion 51,128 54,230
Caylloma M&I Property [member] | Provision for decommissioning, restoration and rehabilitation costs [member]    
Disclosure of other provisions [line items]    
Balance at beginning 14,898 14,761
Changes in estimate (1,235) (152)
Reclamation expenditures (503) (180)
Accretion 796 469
Balance at ending 13,956 14,898
Less: Current portion (1,577) (1,230)
Non-current portion 12,379 13,668
San Jose M&I Property [member] | Provision for decommissioning, restoration and rehabilitation costs [member]    
Disclosure of other provisions [line items]    
Balance at beginning 7,128 5,905
Changes in estimate (493) 1,142
Reclamation expenditures (120) (173)
Accretion 682 439
Effect of changes in foreign exchange rates 473 (185)
Balance at ending 7,670 7,128
Less: Current portion (600) (652)
Non-current portion 7,070 6,476
Lindero Project [member] | Provision for decommissioning, restoration and rehabilitation costs [member]    
Disclosure of other provisions [line items]    
Balance at beginning 19,639 19,684
Changes in estimate (8,666) (422)
Accretion 541 377
Balance at ending 11,514 19,639
Non-current portion 11,514 19,639
Yaramoko Mine [member] | Provision for decommissioning, restoration and rehabilitation costs [member]    
Disclosure of other provisions [line items]    
Balance at beginning 12,895  
Acquisition of Roxgold   11,122
Changes in estimate 135 1,609
Accretion 345 164
Balance at ending 13,375 12,895
Non-current portion 13,375 12,895
Seguela Project [Member] | Provision for decommissioning, restoration and rehabilitation costs [member]    
Disclosure of other provisions [line items]    
Balance at beginning 1,552  
Changes in estimate 5,238 1,552
Balance at ending 6,790 1,552
Non-current portion $ 6,790 $ 1,552