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ROYALTY AND OTHER PROPERTY INTERESTS - Disclosure of detailed information about royalty interests (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Categories Of Royalty And Other Property Interests [Line Items]    
Royalty and other property interests, beginning balance $ 65,648 $ 14,517
Additions (29) 54,065
Depletion (5,637) (2,418)
Cumulative translation adjustments (5,526) (228)
Impairment (1,031) (288)
Royalty and other property interests, ending balance 53,425 65,648
Leeville [Member]    
Categories Of Royalty And Other Property Interests [Line Items]    
Depletion (1,867) (2,418)
Revelo Portfolio [Member]    
Categories Of Royalty And Other Property Interests [Line Items]    
Royalty and other property interests, ending balance 1,162  
Royalty Interests [Member]    
Categories Of Royalty And Other Property Interests [Line Items]    
Royalty and other property interests, beginning balance 63,198 11,184
Additions 484 54,732
Depletion (5,637) (2,418)
Cumulative translation adjustments (5,473) 0
Impairment (881) (300)
Royalty and other property interests, ending balance 51,691 63,198
Royalty Interests [Member] | Gediktepe [Member] | Turkey [Member]    
Categories Of Royalty And Other Property Interests [Line Items]    
Royalty and other property interests, beginning balance 43,746 0
Additions 0 43,746
Depletion (3,770) 0
Cumulative translation adjustments (5,448) 0
Impairment 0 0
Royalty and other property interests, ending balance 34,528 43,746
Royalty Interests [Member] | Leeville [Member] | U.S.A. [Member]    
Categories Of Royalty And Other Property Interests [Line Items]    
Royalty and other property interests, beginning balance 6,413 8,831
Additions 0 0
Depletion (1,867) (2,418)
Cumulative translation adjustments (0) 0
Impairment 0 0
Royalty and other property interests, ending balance 4,546 6,413
Royalty Interests [Member] | Diablillos [Member] | Argentina [Member]    
Categories Of Royalty And Other Property Interests [Line Items]    
Royalty and other property interests, beginning balance 7,018 0
Additions 0 7,224
Depletion 0 0
Cumulative translation adjustments 0 0
Impairment (436) (206)
Royalty and other property interests, ending balance 6,582 7,018
Royalty Interests [Member] | Berenguela [Member] | Peru [Member]    
Categories Of Royalty And Other Property Interests [Line Items]    
Royalty and other property interests, beginning balance 1,949 0
Additions 0 2,006
Depletion 0 0
Cumulative translation adjustments 0 0
Impairment (121) (57)
Royalty and other property interests, ending balance 1,828 1,949
Royalty Interests [Member] | Revelo Portfolio [Member] | Chile [Member]    
Categories Of Royalty And Other Property Interests [Line Items]    
Royalty and other property interests, beginning balance 1,326 1,322
Additions 0 0
Depletion 0 0
Cumulative translation adjustments (25) 0
Impairment (164) 4
Royalty and other property interests, ending balance 1,137 1,326
Royalty Interests [Member] | Tartan Lake [Member] | Canada [Member]    
Categories Of Royalty And Other Property Interests [Line Items]    
Royalty and other property interests, beginning balance 975 0
Additions 0 1,003
Depletion 0 0
Cumulative translation adjustments 0 0
Impairment (61) (28)
Royalty and other property interests, ending balance 914 975
Royalty Interests [Member] | Other [Member]    
Categories Of Royalty And Other Property Interests [Line Items]    
Royalty and other property interests, beginning balance 1,771 1,031
Additions 484 753
Depletion 0 0
Cumulative translation adjustments 0 0
Impairment (99) (13)
Royalty and other property interests, ending balance 2,156 1,771
Other Property Interests [Member]    
Categories Of Royalty And Other Property Interests [Line Items]    
Royalty and other property interests, beginning balance 2,450 3,333
Additions (513) (667)
Depletion 0 0
Cumulative translation adjustments (53) (228)
Impairment (150) 12
Royalty and other property interests, ending balance 1,734 2,450
Other Property Interests [Member] | Perry Portfolio [Member] | Canada [Member]    
Categories Of Royalty And Other Property Interests [Line Items]    
Royalty and other property interests, beginning balance 1,321 1,900
Additions (446) (462)
Depletion 0 0
Cumulative translation adjustments (53) (124)
Impairment (81) 7
Royalty and other property interests, ending balance 741 1,321
Other Property Interests [Member] | Other [Member]    
Categories Of Royalty And Other Property Interests [Line Items]    
Royalty and other property interests, beginning balance 1,129 1,433
Additions (67) (205)
Depletion 0 0
Cumulative translation adjustments 0 (104)
Impairment (69) 5
Royalty and other property interests, ending balance $ 993 $ 1,129