Financial instruments (Schedule of net position consisted of contracts awaiting final pricing) (Details) - Embedded Derivatives [Member] lb in Thousands |
Dec. 31, 2025
lb
oz
$ / OZ
$ / lbs
|
Dec. 31, 2024
lb
oz
$ / OZ
$ / lbs
|
|---|---|---|
| Copper [Member] | ||
| Disclosure of risk management strategy related to hedge accounting [line items] | ||
| Sales awaiting final pricing | lb | 65,791 | 85,731 |
| Average YTD price ($/unit) | $ / lbs | 5.64 | 3.96 |
| Gold [Member] | ||
| Disclosure of risk management strategy related to hedge accounting [line items] | ||
| Sales awaiting final pricing | oz | 33,222 | 47,075 |
| Average YTD price ($/unit) | $ / OZ | 4,340 | 2,638 |
| Silver [Member] | ||
| Disclosure of risk management strategy related to hedge accounting [line items] | ||
| Sales awaiting final pricing | oz | 85,337 | 238,149 |
| Average YTD price ($/unit) | $ / OZ | 70.22 | 29.02 |
| Zinc [Member] | ||
| Disclosure of risk management strategy related to hedge accounting [line items] | ||
| Sales awaiting final pricing | lb | 8,365 | 12,102 |
| Average YTD price ($/unit) | $ / lbs | 1.4 | 1.34 |