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Tahoe Acquisition - Assumptions (Details) |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Feb. 22, 2019 USD ($) year $ / shares | Feb. 21, 2019 $ / shares | Feb. 21, 2019 $ / shares | Dec. 31, 2019 USD ($) year $ / shares | Dec. 31, 2018 USD ($) year | Feb. 22, 2019 CAD ($)
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Expected volatility |  |  |  | 37.10% | 43.80% |
Expected life | year |  |  |  | 4.0 | 4.0 |
Expected dividend yield |  |  |  | 1.00% | 2.10% |
Risk-free interest rate |  |  |  | 2.00% | 2.50% |
Fair value | $ |  |  |  | $ 8.34 | $ 5.90 |
Tahoe Resources, Inc [member] |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Expected volatility |  | 40.75% | 40.75% |  |  |
Expected dividend yield |  | 0.78% | 0.78% |  |  |
Risk-free interest rate |  | 0.93% | 0.93% |  |  |
Fair value | $ 123,729.43 |  |  |  |  | $ 163,273.36
CAD to USD exchange rate |  |  |  |  | 0.7578 |
Common Shares [Member] | Tahoe Resources, Inc [member] |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Share price (per share) | (per share) |  | $ 19.01 | $ 14.21 |  |  |
Bottom of range [member] |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Exercise price, share options granted (CAD$ per share) |  |  |  | $ 20.52 |  |
Bottom of range [member] | Tahoe Resources, Inc [member] |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Exercise price, share options granted (CAD$ per share) | $ 11.67 |  |  |  |  |
Expected life | year | 0.2 |  |  |  |  |
Top of range [member] |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Exercise price, share options granted (CAD$ per share) |  |  |  | $ 97.26 |  |
Top of range [member] | Tahoe Resources, Inc [member] |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Exercise price, share options granted (CAD$ per share) | $ 97.26 |  |  |  |  |
Expected life | year | 1.0 |  |  |  |  |

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