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Segment Information - Summary of Company's Reportable Operating Segments (Parenthetical) (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Disclosure of operating segments [line items]    
Total revenue $ 148,732 $ 114,860
Stream, royalty and other interests 1,781,256 473,651
Hod Maden [member]    
Disclosure of operating segments [line items]    
Stream, royalty and other interests 207,000 5,800
Investments in associates   63,300
Hugo north extension and heruga segment [member]    
Disclosure of operating segments [line items]    
Stream, royalty and other interests 35,400 35,400
Investments in associates   21,300
Mercedes Segment [Member] | Gold [member]    
Disclosure of operating segments [line items]    
Total revenue 12,400  
Mercedes Segment [Member] | Silver product [member]    
Disclosure of operating segments [line items]    
Total revenue 2,500  
Other [member] | Gold [member]    
Disclosure of operating segments [line items]    
Total revenue 17,700 25,700
Other [member] | Copper [member]    
Disclosure of operating segments [line items]    
Total revenue 1,300 2,700
Other [member] | Other Base Metal Product [member]    
Disclosure of operating segments [line items]    
Total revenue $ 5,600 $ 3,300
Top of Range [member] | Other [member]    
Disclosure of operating segments [line items]    
Percentage of companys sales gross margin or aggregate asset book value 10.00% 10.00%
Royalty revenue [member]    
Disclosure of operating segments [line items]    
Total revenue $ 50,917 $ 43,138
Royalty revenue [member] | Antamina Segment [Member] | Copper [member]    
Disclosure of operating segments [line items]    
Total revenue 2,900  
Royalty revenue [member] | Antamina Segment [Member] | Other Base Metal Product [member]    
Disclosure of operating segments [line items]    
Total revenue 1,200  
Royalty revenue [member] | Antamina Segment [Member] | Silver product [member]    
Disclosure of operating segments [line items]    
Total revenue 200  
CANADA | Other [member]    
Disclosure of operating segments [line items]    
Total revenue 15,300 14,500
Other Geographical Area [member] | Other [member]    
Disclosure of operating segments [line items]    
Total revenue 4,500 6,300
MEXICO | Other [member]    
Disclosure of operating segments [line items]    
Total revenue $ 4,800 $ 10,900