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Financial risk management objectives and policies - Sensitivity Analysis to Foreign Exchange Rate Differences (Details) - Foreign Exchange Rate Differences - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of detailed information about financial instruments [line items] |  |  |
Decrease in USD:Euro FX Rate | 5.00% | 5.00% | 5.00%
Effect on profit before tax (-/+) | 0.00% | 0.00% | 0.00%
Increase in USD:Euro FX Rate | (5.00%) | (5.00%) | (5.00%)
Effect on profit before tax (+/-) | $ 0 | $ 0 | $ 0

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