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Discontinued operations - Other income and other gain (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Bank interest income | $ 1,042 | $ 1,846 | $ 3,570
Net foreign exchange (loss)/gain | (837) | 7 | 376
Sundry income | 105 | 153 | 79
Other income and other net gain/(losses) | 614 | 2,006 | 4,133
Discontinued operations |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Bank interest income | 50 | 193 | 373
Net foreign exchange (loss)/gain | 283 | 314 | (71)
Sundry income | 4,701 | 278 | 362
Other income and other net gain/(losses) | 5,034 | 785 | 664
Discontinued operations | Prevention and diagnostics - COVID-19 related and EMEA operations |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Bank interest income | 0 | 0 | 19
Net foreign exchange (loss)/gain | (4) | 1 | (25)
Sundry income | 4,594 | 45 | 296
Other income and other net gain/(losses) | 4,590 | 46 | 290
Discontinued operations | ACT genomics |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Bank interest income | 50 | 193 | 354
Net foreign exchange (loss)/gain | 287 | 313 | (46)
Sundry income | 107 | 233 | 66
Other income and other net gain/(losses) | $ 444 | $ 739 | $ 374

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