v3.25.2

Subsequent events (Narrative) (Details) - Subsequent Events [Member] $ in Millions | 1 Months Ended
--- | ---
Feb. 18, 2026 USD ($) $ / shares | Feb. 18, 2026 USD ($) | Jan. 29, 2026 USD ($)
Disclosure of non-adjusting events after reporting period [line items] |  |  |
Dividend declared per share | $ / shares | $ 0.055 |  |
Namdini Gold Mine [Member] |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |
Percentage of NSR acquired |  |  | 1.00%
Savannah Mining Limited [Member] |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |
Percentage of remaining interest |  |  | 50.00%
Total percentage of NSR held |  |  | 2.00%
Investments in royalty, payment |  |  | $ 103.5
Gold Fields Limited [Member] |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |
Percentage of NSR acquired |  | 1.50% |
Investments in royalty, payment |  | $ 115.0 |
Payments for deferred payment obligations |  | 52.0 |
Contractual cash flow receivable | $ 60.0 | 60.0 |
Gold Fields Limited [Member] | First tranche [Member] |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |
Contractual cash flow receivable | 30.0 | 30.0 |
Gold Fields Limited [Member] | Upon production of an aggregate of 100,000 ounces [Member] |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |
Contractual cash flow receivable | $ 30.0 | $ 30.0 |

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