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Taxation - Unrecognized deferred tax assets (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Taxation |  |  |
Deductible temporary differences | $ 83,933 | $ 59,683 | $ 25,668
Tax losses | 5,900 | 5,747 | 5,218
Total unrecognized deferred tax assets | 89,833 | 65,429 | 30,886
Total tax effect, unrecognized deferred tax assets | $ 23,177 | $ 16,357 | $ 7,722
Applicable tax rate | 25.80% | 25.00% | 25.00%

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- Definition The applicable income tax rate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2022-03-24 -Paragraph 81 -Subparagraph c -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2022-en-r&anchor=para_81_c_ii&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of unused tax losses for which no deferred tax asset is recognised in the statement of financial position. [Refer: Unused tax losses [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2022-03-24 -Paragraph 81 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2022-en-r&anchor=para_81_e&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of deductible temporary differences for which no deferred tax asset is recognized in the statement of financial position. + References No definition available. + Details
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- Definition Total tax effect related to unrecognized deferred tax assets. + References No definition available. + Details
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