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Acquisitions and Other Transactions - Acquisition of Royalty Interests, Funding of Financing Package and Volcan Gold Project (Details) $ in Millions, $ in Millions |  |  |  |  |  |  |  |  |  |  |  |  | 12 Months Ended
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Dec. 04, 2024 USD ($) | Dec. 04, 2024 CAD ($) | Jul. 12, 2024 USD ($) | Jan. 19, 2024 | Nov. 15, 2023 USD ($) | Jul. 06, 2023 USD ($) | Jun. 09, 2023 USD ($) | Mar. 08, 2023 USD ($) | Feb. 22, 2023 | Oct. 27, 2022 USD ($) | Jul. 18, 2022 USD ($) oz | Apr. 30, 2022 | Feb. 19, 2019 | Dec. 31, 2024 | Dec. 31, 2023
Acquisitions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of NSR |  |  |  |  |  |  |  |  | 1.50% |  |  |  | 2.00% |  |
Argonaut Gold Inc.'s Royalty on Magino Gold Project - Ontario, Canada |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional NSR acquired |  |  |  |  | 1.00% |  |  |  |  |  |  |  |  |  |
Purchase price |  |  |  |  | $ 28.0 |  |  |  |  | $ 52.5 |  |  |  |  |
Percentage of NSR |  |  |  |  | 3.00% |  |  |  |  | 2.00% |  |  |  |  |
G Mining Ventures Corp, Tocantinzinho Project, Brazil |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price |  |  |  |  |  |  |  |  |  |  | $ 250.0 |  |  |  |
Secured term loan receivable |  |  |  |  |  |  |  |  |  |  | $ 75.0 |  |  |  |
Share subscription | $ 15.5 | $ 21.9 | $ 25.0 |  |  |  |  |  |  |  |  |  |  |  |
Percentage of gold produced to be delivered until the threshold is met |  |  |  |  |  |  |  |  |  |  | 12.50% |  |  |  |
Deliveries of ounces of refined gold threshold | oz |  |  |  |  |  |  |  |  |  |  | 300,000 |  |  |  |
Percentage of gold produced for the remaining mine life |  |  |  |  |  |  |  |  |  |  | 7.50% |  |  |  |
Percentage of spot gold price receivable |  |  |  |  |  |  |  |  |  |  | 20.00% |  |  |  |
Royalty on Volcan Gold Project - Chile |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price |  |  |  |  |  | $ 15.0 |  |  |  |  |  |  |  |  |
Percentage of NSR |  |  |  |  |  | 1.50% |  |  |  |  |  |  |  |  |
Percentage of NSR on existing royalty |  |  |  |  |  | 1.50% |  |  |  |  |  |  |  |  |
Option to acquire additional NSR |  |  |  |  |  | 1.00% |  |  |  |  |  |  |  |  |
Caserones Royalty, Chile |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional NSR acquired |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.112% |
Purchase price |  |  |  |  |  |  | $ 7.3 | $ 2.1 |  |  |  |  |  |  |
Percentage of NSR |  |  |  | 0.517% |  |  | 0.086% | 0.026% |  |  |  | 0.4582% |  |  | 0.5702%

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