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Goodwill (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2021
Intangible assets and goodwill [abstract] |
Disclosure of detailed information about key assumptions for the CGU's [Table Text Block] |
| 2021 |  | 2020
Long-term gold price (per ounce) | US$1,600 |  | US$1,600
Long-term silver price (per ounce) | US$21 |  | US$20
Post-tax real discount rate | 4.3% | 3.5%

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