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v3.22.4

Share Capital and Reserves - Additional Information (Detail) $ / shares in Units, $ in Thousands |  |  |  |  |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 20, 2022 $ / shares | Oct. 04, 2022 USD ($) $ / shares shares | Sep. 29, 2022 $ / shares | Jun. 30, 2022 $ / shares | Mar. 31, 2022 $ / shares | Aug. 31, 2022 | Dec. 31, 2022 USD ($) yr shares $ / shares | Dec. 31, 2022 USD ($) shares $ / shares $ / shares | Dec. 31, 2021 USD ($) shares | Dec. 31, 2021 shares $ / shares | Dec. 31, 2020 shares
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Treasury shares authorized to purchase | shares |  |  |  |  |  |  | 18,900,000 | 18,900,000 |  |  |
Maximum percentage share compensation arrangements relative to outstanding shares |  |  |  |  |  |  | 8.50% |  |  |  |
Average share price of entity |  |  |  |  |  |  |  | $ 8.1 |  | $ 8.76 |
Dividend recognized as distribution to owners per share | $ 0.02 |  | $ 0.02 | $ 0.02 | $ 0.02 |  |  |  |  |  |
Proceeds from issue of ordinary shares | $ |  |  |  |  |  |  | $ 86,031 |  | $ 0 |  |
Compañia Minera Caserones [Member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Percentage of interest acquired in subsidiary |  |  |  |  |  | 67.50% |  |  |  |  |
Stock Option Incentive Plan [member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Number of option issued | shares |  |  |  |  |  |  | 6,249,148 |  | 2,968,000 |  |
Weighted average exercise price |  |  |  |  |  |  |  | $ 7.19 |  | 7.18 |
Fair value of option issued | $ |  |  |  |  |  |  | $ 5,700 | $ 5,700 |  |  |
Fair value per option |  |  |  |  |  |  | $ 1.35 |  |  |  |
Expected volatility |  |  |  |  |  |  | 34.25% |  |  |  |
Risk-free interest rate |  |  |  |  |  |  | 4.03% |  |  |  |
Dividend yield |  |  |  |  |  |  | 1.12% |  |  |  |
Expected life | yr |  |  |  |  |  |  | 3 |  |  |  |
Description of option pricing model, share options granted |  |  |  |  |  |  | BSM |  |  |  |
Weighted average share price at time of exercise of options |  |  |  |  |  |  |  | $ 7.82 |  | $ 7.74 |
Weighted average remaining contractual life of outstanding share options |  |  |  |  |  |  | 2 years 11 months 15 days |  | 3 years 3 months 3 days |  |
Number of options outstanding | shares |  |  |  |  |  |  | 16,356,022 | 16,356,022 | 11,239,342 | 11,239,342 | 9,127,103
Restricted Share Rights [member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Number of option issued | shares |  |  |  |  |  |  | 566,500 |  |  |  |
Fair value of option issued | $ |  |  |  |  |  |  | $ 3,000 | $ 3,000 |  |  |
Fair value per option |  |  |  |  |  |  | $ 5.25 |  |  |  |
Shares authorized for issuance share based compensation arrangement | shares |  |  |  |  |  |  | 4,500,000 | 4,500,000 |  |  |
Vesting term |  |  |  |  |  |  | three year |  |  |  |
Number of options outstanding | shares |  |  |  |  |  |  | 2,262,667 | 2,262,667 |  |  |
Warrants [member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Weighted average share price at time of exercise for other equity instruments exercised or vested in share-based payment arrangement |  |  |  |  |  |  |  | $ 7.4 |  |  |
Number of other equity instruments outstanding in share-based payment arrangement | shares |  |  |  |  |  |  | 242,000 | 242,000 | 0 | 0 |
Weighted average exercise price of other equity instruments outstanding in share-based payment arrangement |  |  |  |  |  |  | $ 8.97 | $ 8.97 |  |  |
Expiry date of other equity instruments |  |  |  |  |  |  | May 13, 2024 |  |  |  |
Public Share Offering [Member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Number of shares issued | shares |  | 18,055,000 |  |  |  |  |  |  |  |  |
Share price |  | $ 5.1 |  |  |  |  |  |  |  |  |
Proceeds from issue of ordinary shares | $ |  | $ 92,100 |  |  |  |  |  |  |  |  |
Agent Fees | $ |  | $ 4,600 |  |  |  |  |  |  |  |  |
Percentage of gross proceeds representing agent fees |  | 5.00% |  |  |  |  |  |  |  |  |
Employee Stock Option Incentive Plan [member] |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |
Number of option issued | shares |  |  |  |  |  |  | 4,231,000 |  |  |  |
Weighted average exercise price |  |  |  |  |  |  |  | $ 7.12 |  |  |
Weighted average share price granted |  |  |  |  |  |  |  | $ 7.12 |  |  |

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- Definition The expected volatility of the share price used to calculate the fair value of the share options granted. Expected volatility is a measure of the amount by which a price is expected to fluctuate during a period. The measure of volatility used in option pricing models is the annualised standard deviation of the continuously compounded rates of return on the share over a period of time. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2022-03-24 -Paragraph 47 -Subparagraph a -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_47_a_i&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount, per share, of dividends recognised as distributions to owners. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 107 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_107&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The number of other equity instruments (ie other than share options) outstanding in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 2 -IssueDate 2022-03-24 -Paragraph 45 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The number of share options granted in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2022-03-24 -Paragraph 45 -Subparagraph b -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45_b_ii&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2022-03-24 -Paragraph 17 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2022-en-r&anchor=para_17_b_iii&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2022-03-24 -Paragraph 16 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2022-en-r&anchor=para_16_b_iii&doctype=Standard -URIDate 2022-03-24 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2022-03-24 -Paragraph 19B -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2022-en-r&anchor=para_19B_c&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The weighted average exercise price of other equity instruments (ie other than share options) outstanding in a share-based payment arrangement. [Refer: Weighted average [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 2 -IssueDate 2022-03-24 -Paragraph 45 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The weighted average exercise price of share options granted in a share-based payment arrangement. [Refer: Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2022-03-24 -Paragraph 45 -Subparagraph b -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45_b_ii&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The weighted average share price at the date of exercise for share options that are exercised in a share-based payment arrangement. [Refer: Share-based payment arrangements [member]; Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2022-03-24 -Paragraph 45 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45_c&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The weighted average fair value of share options granted during the period at the measurement date. [Refer: Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2022-03-24 -Paragraph 47 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_47_a&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The weighted average remaining contractual life of outstanding share options. [Refer: Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2022-03-24 -Paragraph 45 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45_d&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The weighted average share price. [Refer: Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2022-03-24 -Paragraph 45 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45_c&doctype=Standard -URIDate 2022-03-24 + Details
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