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Financial instruments included in the statement of financial position and impact on income - Disclosure of Effect of Changes in Exchange Rates (Details) - Currency risk - EUR (€) € in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Disclosure of detailed information about financial instruments [line items] |  |
Change in contract assets due to a 10% increase in exchange rate | € 0 | € 187
Change in contract assets due to a 10% decrease in exchange rate | 0 | (187)
Change in cash and cash equivalents due to a 10% increase in exchange rate | 4,199 |
Change in cash and cash equivalents due to a 10% decrease in exchange rate | (4,199) |
Change in contract liabilities due to a 10% increase in exchange rate |  | 1,638
Change in contract liabilities due to a 10% decrease in exchange rate |  | (1,638)
Change in net income due to a 10% increase in exchange rate | 56 | 22
Change in net income due to a 10% decrease in exchange rate | (56) | (22)
Change in equity due to a 10% increase in exchange rate | 35 | (22)
Change in equity due to a 10% decrease in exchange rate | (35) | 22
USD / Euro exchange rate |  |
Disclosure of detailed information about financial instruments [line items] |  |
Change in contract assets due to a 10% increase in exchange rate | 0 | 187
Change in contract assets due to a 10% decrease in exchange rate | 0 | (187)
Change in cash and cash equivalents due to a 10% increase in exchange rate | 4,199 |
Change in cash and cash equivalents due to a 10% decrease in exchange rate | (4,199) |
Change in contract liabilities due to a 10% increase in exchange rate |  | 1,638
Change in contract liabilities due to a 10% decrease in exchange rate |  | (1,638)
Change in net income due to a 10% increase in exchange rate | 56 | 22
Change in net income due to a 10% decrease in exchange rate | (56) | (22)
Change in equity due to a 10% increase in exchange rate | 35 | (22)
Change in equity due to a 10% decrease in exchange rate | € (35) | € 22

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