Related party transactions - Interest income (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2020
Related party transactions
Interest income	$ 1,639	$ 7
Associates
Related party transactions
Interest income	1,404
Castcrown Ltd
Related party transactions
Interest income	325
MX Capital Ltd
Related party transactions
Interest income	$ 1,079

The amount of income arising from interest.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 8
-IssueDate 2022-03-24
-Paragraph 23
-Subparagraph c
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 8
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-Subparagraph e
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-URIDate 2022-03-24

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2022-03-24
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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration