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Gold and Silver Bullion and Stream Inventory (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Gold and Silver Bullion and Stream Inventory    
Gold and silver bullion from royalties received in-kind $ 89.5 $ 51.3
Stream ounces 7.3 0.5
Total gold bullion and inventory $ 96.8 $ 51.8