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Impairment | 12 Months Ended
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Dec. 31, 2022
Impairment and Reversal of Impairment and Goodwill [Abstract] |
Impairment | 12. IMPAIRMENT
As at December 31, 2022, the Company reviewed its CGUs, represented by its principal producing mining properties and significant development projects, for indicators of impairment or impairment reversal. The CGU carrying amount for purposes of this assessment includes the carrying value of the mineral properties plant and equipment and goodwill less deferred tax liabilities and closure and decommissioning liabilities related to each CGU. The Company did not identify any indicators of impairment or impairment reversal at any of its CGUs. The Company's impairment expense in respect of the following CGUs for the year ended December 31, 2022 were as follows:
|  |  | 2022 | 2021
Dolores impairment expense |  |  | $ | 99,064 |  | $ | — |
Dolores On June 30, 2022 the Company identified an impairment indicator in the Dolores Mine CGU due to the year-to-date 2022 silver and gold production being less than that expected by management, driven by an ore reconciliation shortfall experienced in a recent higher grade phase of the Dolores open pit mined in 2022, which was expected to affect production for the remainder of the year combined with the impact of inflationary pressures on this asset which has a shorter remaining mine life. Accordingly, management completed a recoverable value assessment of the Dolores Mine CGU, with, the Company recognizing an impairment expense of $99.1 million, against the carrying value of the Dolores Mine CGU at June 30, 2022, and recorded an NRV adjustment of $55.4 million (Note 10) (Collectively, the "Dolores Impairment"). The recoverable amount was determined applying a fair value less cost to sell methodology based on future after-tax cash flows expected to be derived from Dolores Mine discounted with a 6% weighted average cost of capital, a Level 3 fair value measurement. The projected cash flows used in impairment testing are significantly affected by changes in assumptions for metal prices, changes in the amount of recoverable reserves, production costs estimates and capital expenditures estimates. For the year ended December 31, 2022, the Company's impairment testing incorporated the following key assumptions: a)Pricing Assumptions Metal pricing included in the cash flow projections is based on consensus analyst pricing. The metal price assumptions used in the impairment assessment were the following:
| At June 30, 2022 |
| 2022-2025 Average | 2026 and long-term |  |
Gold (per ounce) | $ | 1,802 |  | $ | 1,651 |  |  |
Silver (per ounce) | 23.56 |  | 21.77 |  |  |
b)Additional Dolores-specific assumptions affecting the recoverable amount assessment In 2022, the recoverable amount of the Dolores Mine CGU was negatively impacted by the following: i) the updated mineral resource and remaining life of mine plan indicates a reduction in the assumed grades for a phase to be mined in 2022, following 2022 year-to-date silver and gold production being less than expected due to lower than expected grades encountered in this section of the open pit; ii) inflationary pressures, which have particularly affected this shorter-life asset where most of the mining will be completed in the next two years; iii) the suspension of underground mining operations in the first half of 2022 due to inflationary cost pressures, and the subsequent reclassification of underground mineral reserves to mineral resources; and, iv) a reduction in the expected duration of leaching to the year 2030.

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- Definition The entire disclosure for the impairment of assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2022-03-24 -Section Disclosure -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2022-en-r&doctype=Standard&dita_xref=IAS36_g126-137__IAS36_g126-137_TI -URIDate 2022-03-24 + Details
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- Definition Impairment and Reversal of Impairment and Goodwill [Abstract] + References No definition available. + Details
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