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ACQUISITIONS AND DISPOSITIONS - Great Bear (Details) $ in Thousands, $ in Millions |  | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 09, 2022 USD ($) ha | Sep. 09, 2022 CAD ($) ha | Dec. 31, 2021 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Jun. 30, 2021 USD ($)
Acquisitions |  |  |  |  |  |
Acquisition consideration paid |  |  | $ 281,066 | $ 2,678 | $ 922,155 | $ 168,147
GBR |  |  |  |  |  |
Acquisitions |  |  |  |  |  |
Acquisition consideration paid | $ 151,679 | $ 199.6 |  |  |  |
Net smelter return (NSR) (as a percent) | 2.00% | 2.00% |  |  |  |
Area of mining | ha | 9,140 | 9,140 |  |  |  |
Option to purchase royalty interest (as a percent) | 25.00% | 25.00% |  |  |  |
Option purchase price based on original price (as a percent) | 25.00% | 25.00% |  |  |  |
Threshold period for option purchase | 10 years | 10 years |  |  |  |
Buy Back Option | $ 2,100 |  |  |  |  |
GBR | Kinross |  |  |  |  |  |
Acquisitions |  |  |  |  |  |
Net smelter return (NSR) (as a percent) | 0.50% | 0.50% |  |  |  |

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