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Investments in Associates - Additional Information (Details) $ in Thousands |  |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Aug. 01, 2023 USD ($) $ / shares shares | Mar. 31, 2023 USD ($) shares | Mar. 31, 2023 USD ($) $ / shares shares | Jun. 28, 2022 USD ($) shares | Dec. 31, 2023 USD ($) shares | Dec. 31, 2023 USD ($) $ / shares | Dec. 31, 2022 USD ($) | Sep. 30, 2023 | Dec. 31, 2021 USD ($)
Disclosure of associates [line items] |  |  |  |  |  |  |  |  |
Gain on sale of partial interest and reclassification of investment in i-80 Gold |  |  |  |  | $ 34,467 |  | $ 0 |  |
Investments in associates |  |  |  |  | $ 29,263 | $ 29,263 | $ 150,834 |  | $ 125,313
Sandbox |  |  |  |  |  |  |  |  |
Disclosure of associates [line items] |  |  |  |  |  |  |  |  |
Proportion of ownership interest in associate |  |  |  |  | 20.30% |  | 34.40% |  |
Number of units acquired in private placement financing (in shares) | shares |  |  |  |  | 6,200,000 |  |  |  |
Percentage of voting equity interests acquired |  |  |  |  | 20.30% | 20.30% | 34.40% | 34.40% |
Investments in associates |  |  |  |  | $ 29,263 | $ 29,263 | $ 30,967 |  | $ 0
i-80 Gold |  |  |  |  |  |  |  |  |
Disclosure of associates [line items] |  |  |  |  |  |  |  |  |
Proportion of ownership interest in associate |  | 19.95% |  |  | 0.00% |  | 25.30% |  |
Number of units acquired in private placement financing (in shares) | shares | 1,000,000 |  |  |  |  |  |  |  |
Price per unit acquired in private placement financing (in dollars per share) | $ / shares | $ 2.70 |  |  |  |  |  |  |  |
Consideration transferred, acquisition-date fair value | $ 2,100 |  |  |  |  |  |  |  |
Private placement, number of units sold (in shares) | shares |  | 11,600,000 |  |  |  |  |  |  |
Private placement sale, units sold, price per unit (in dollars per share) | $ / shares |  |  | $ 2.76 |  |  |  |  |  |
Private placement sale, number of common shares included per unit sold (in shares) | shares |  | 1 |  |  |  |  |  |  |
Private placement sale, number of warrants included per unit sold (in shares) | shares |  | 0.5 |  |  |  |  |  |  |
Gross proceeds from sales of interests in associates |  | $ 23,600 |  |  |  |  |  |  |
Number of common shares called by each warrant (in shares) | shares |  | 1 | 1 |  |  |  |  |  |
Securities called by warrant, price per share (in dollars per share) | $ / shares |  |  | $ 3.45 |  |  |  |  |  |
Common shares called by each warrant, acquisition period |  | 12 months |  |  |  |  |  |  |
Private placement sale, common shares sold |  | $ 20,500 |  |  |  |  |  |  |
Private placement sale, warrants issued |  | 3,100 |  |  |  |  |  |  |
Gain on sale of partial interest and reclassification of investment in i-80 Gold |  |  |  |  | $ 34,500 |  |  |  |
Investments in associates |  | 105,100 | $ 105,100 |  |  |  | $ 119,867 |  |
Transaction costs |  | 800 |  |  |  |  |  |  |
i-80 Gold | FVOCI |  |  |  |  |  |  |  |  |
Disclosure of associates [line items] |  |  |  |  |  |  |  |  |
Investments in associates |  | $ 119,900 | $ 119,900 |  |  |  |  |  |
Royalty Interest | Sandbox |  |  |  |  |  |  |  |  |
Disclosure of associates [line items] |  |  |  |  |  |  |  |  |
Number of shares acquired in sale of royalty interest (in shares) | shares |  |  |  | 51,900,000 |  |  |  |  |
Proportion of ownership interest in associate |  |  |  | 35.00% |  |  |  |  |
Total fair value of consideration |  |  |  | $ 28,400 |  |  |  |  |
Price per unit acquired in private placement financing (in dollars per share) | $ / shares |  |  |  |  |  | $ 0.70 |  |  |
Consideration transferred, acquisition-date fair value |  |  |  |  | $ 3,300 | $ 3,300 |  |  |

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