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Qualitative and quantitative information on financial risks - Additional Information (Detail) - EUR (€) € in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024
Foreign currency risk |  |
Disclosure of financial assets that are either past due or impaired [line items] |  |
Potential effects of a shock change on the main currencies, as a percent | 5.00% |
Interest rate risk |  |
Disclosure of financial assets that are either past due or impaired [line items] |  |
Percentage of increase in short-term interest rates on such floating rate non-current financial liabilities | 20.00% |
Impact on increase in profit before tax of sensitivity on floating rate borrowings | € 5,200 | € 10,092
Percentage of decrease in short-term interest rates on such floating rate non-current financial liabilities | 20.00% |
Impact on decrease in profit before tax of sensitivity on floating rate borrowings | € 3,920 | 7,288
Interest rate risk | Interest rate swaps | At fair value |  |
Disclosure of financial assets that are either past due or impaired [line items] |  |
(Negative) positive fair value held for hedging | (199) | (324)
Interest rate risk | Interest rate swaps | Financial Instruments Held For Hedging |  |
Disclosure of financial assets that are either past due or impaired [line items] |  |
Notional amount | € 81,295 | € 82,631
Bottom of range | Foreign currency risk |  |
Disclosure of financial assets that are either past due or impaired [line items] |  |
Percentage of hedges arrange to forecast sales in foreign currencies | 50.00% |
Top of range | Foreign currency risk |  |
Disclosure of financial assets that are either past due or impaired [line items] |  |
Percentage of hedges arrange to forecast sales in foreign currencies | 60.00% |

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- Definition The amount of derivative financial assets held for hedging. [Refer: Derivative financial assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Note Expiry date 2027-01-01 -Name IAS -Number 1 -IssueDate 2025-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_55&doctype=Standard -URIDate 2025-03-27 + Details
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- Definition The nominal or face amount of a financial instrument, used to calculate payments made on that instrument. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Note Expiry date 2027-01-01 -Name IAS -Number 1 -IssueDate 2025-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_112_c&doctype=Standard -URIDate 2025-03-27 + Details
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- Definition Percentage of Decrease in short-term interest rates on such floating rate non-current financial liabilities. + References No definition available. + Details
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- Definition Percentage of hedges arrange to forecast sales in foreign currencies. + References No definition available. + Details
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- Definition Percentage of increase in short-term interest rates on such floating rate non-current financial liabilities. + References No definition available. + Details
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