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Gold and Silver Bullion and Stream Inventory - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
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Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Gold and Silver Bullion and Stream Inventory |  |  |  |
Cost of gold and silver bullion from royalties received in kind | $ 104.9 | $ 4.8 | $ 128.0 | $ 14.1
Gross proceeds from sale of gold and silver | 147.1 | 5.9 | 177.3 | 16.6
Gain on sale of gold and silver bullion | $ 42.2 | $ 1.1 | $ 49.3 | $ 2.5

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- Definition Cost of gold and silver bullion sold that were received from royalties in kind during the period. + References No definition available. + Details
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- Definition The amount of gain loss on sale of gold and silver bullion. + References No definition available. + Details
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- Definition The cash inflow from sale of gold and silver bullion. + References No definition available. + Details
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