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Financial risk management - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Financial risk management [Line Items] |  |
Percentage of gains losses on exchange differences on translation recognised in profit or loss | 10.00% |
At 1 percent change |  |
Financial risk management [Line Items] |  |
Interest income | $ 2.0 | $ 4.8

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