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Discontinued operations - Disaggregation of revenue (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue | $ 92,390 | $ 15,936 | $ 6,155
Hong Kong |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue | 23,070 | 10,425 | 6,155
Goods transferred at a point in time |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue | 78,737 | 5,413 | 0
Services transferred at a point in time |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue | 12,945 | 10,367 | 6,155
Discontinued operations |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue | 9,605 | 14,782 | 29,050
Discontinued operations | Hong Kong |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue | 2,394 | 3,938 | 15,725
Discontinued operations | United Kingdom |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue | 1,798 | 2,780 | 2,816
Discontinued operations | Taiwan |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue | 4,835 | 7,092 | 9,325
Discontinued operations | Rest of the world |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue | 578 | 972 | 1,184
Discontinued operations | Goods transferred at a point in time |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue | 0 | 0 | 1,415
Discontinued operations | Services transferred at a point in time |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue | 9,605 | 14,782 | 27,635
Discontinued operations | Prevention and diagnostics - COVID-19 related and EMEA operations |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue | 0 | 97 | 13,462
Discontinued operations | Prevention and diagnostics - COVID-19 related and EMEA operations | Hong Kong |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue | 0 | 97 | 12,916
Discontinued operations | Prevention and diagnostics - COVID-19 related and EMEA operations | United Kingdom |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue | 0 | 0 | 546
Discontinued operations | Prevention and diagnostics - COVID-19 related and EMEA operations | Goods transferred at a point in time |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue | 0 | 0 | 1,415
Discontinued operations | Prevention and diagnostics - COVID-19 related and EMEA operations | Services transferred at a point in time |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue | 0 | 97 | 12,047
Discontinued operations | Diagnostics - sale of precision oncology services |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue | 9,605 | 14,685 | 15,588
Discontinued operations | Prevention and Diagnostics |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue | 9,605 | 14,782 | 29,050
Discontinued operations | ACT genomics |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue | 9,605 | 14,685 | 15,588
Discontinued operations | ACT genomics | Hong Kong |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue | 2,394 | 3,840 | 2,809
Discontinued operations | ACT genomics | United Kingdom |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue | 1,798 | 2,780 | 2,270
Discontinued operations | ACT genomics | Taiwan |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue | 4,835 | 7,092 | 9,325
Discontinued operations | ACT genomics | Rest of the world |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue | 578 | 973 | 1,184
Discontinued operations | ACT genomics | Services transferred at a point in time |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue | $ 9,605 | $ 14,685 | $ 15,588

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