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Share-based compensation - Summary of Valuation Inputs (Details) | 12 Months Ended
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Dec. 31, 2023 year $ / shares | Dec. 31, 2022 year $ / shares | Dec. 31, 2021 year $ / shares
2019 ISOP |  |  |
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items] |  |  |
Share price at grant date (in dollars per share) | $ / shares |  |  | $ 5.59
Dividend yield (%) |  |  | 0.00%
2019 ISOP | Minimum |  |  |
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items] |  |  |
Expected life of share options (years) |  |  | 6.05
Expected volatility (%) |  |  | 41.26%
Risk free interest rate (%) |  |  | (0.63%)
2019 ISOP | Maximum |  |  |
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items] |  |  |
Expected life of share options (years) |  |  | 6.19
Expected volatility (%) |  |  | 41.45%
Risk free interest rate (%) |  |  | (0.48%)
2021 EIP |  |  |
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items] |  |  |
Dividend yield (%) | 0.00% | 0.00% | 0.00%
2021 EIP | Minimum |  |  |
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items] |  |  |
Share price at grant date (in dollars per share) | $ / shares | $ 2.53 | $ 2.06 | $ 16.81
Expected life of share options (years) | 5.50 | 5.50 | 5.50
Expected volatility (%) | 69.50% | 62.65% | 41.65%
Risk free interest rate (%) | 3.45% | 2.42% | 0.87%
2021 EIP | Maximum |  |  |
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items] |  |  |
Share price at grant date (in dollars per share) | $ / shares | $ 4.72 | $ 8.36 | $ 18.00
Expected life of share options (years) | 7.00 | 7.00 | 7.00
Expected volatility (%) | 74.96% | 69.43% | 59.77%
Risk free interest rate (%) | 4.67% | 4.00% | 1.36%

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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 2023-01-01 -Paragraph 47 -Subparagraph a -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_47_a_i&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The option life of share options granted. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2023-01-01 -Paragraph 47 -Subparagraph a -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_47_a_i&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The implied yield currently available on zero-coupon government issues of the country in whose currency the exercise price for share options granted is expressed, with a remaining term equal to the expected term of the option being valued (based on the option's remaining contractual life and taking into account the effects of expected early exercise). [Refer: Government [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2023-01-01 -Paragraph 47 -Subparagraph a -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_47_a_i&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The percentage of an expected dividend used to calculate the fair value of share options granted. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2023-01-01 -Paragraph 47 -Subparagraph a -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_47_a_i&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The weighted average share price used as input to the option pricing model to calculate the fair value of share options granted. [Refer: Option pricing model [member]; Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2023-01-01 -Paragraph 47 -Subparagraph a -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_47_a_i&doctype=Standard -URIDate 2023-03-23 + Details
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