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Financial Instruments - Fair Values and Risk Management - Summary of Sensitivity to Reasonably Possible Change in Interest Rates on that Portion of Loans and Borrowings Affected (Detail) - Market risk [member] - EUR (€) € in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Increase in basis points [member] |  |  |
Disclosure of credit risk exposure [line items] |  |  |
Effect on profit before tax | € 1,707 | € 4,287 | € 5,381
Decrease in basis points [member] |  |  |
Disclosure of credit risk exposure [line items] |  |  |
Effect on profit before tax | € (1,848) | € (4,798) | € (5,113)
Floating-rate borrowings [member] | Increase in basis points [member] |  |  |
Disclosure of credit risk exposure [line items] |  |  |
Increase/decrease in basis points | +45 | +45 | +45
Effect on profit before tax | € (40) | € (52) | € (43)
Floating-rate borrowings [member] | Decrease in basis points [member] |  |  |
Disclosure of credit risk exposure [line items] |  |  |
Increase/decrease in basis points | -45 | -45 | -45
Effect on profit before tax | € 40 | € 52 | € 43

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- Definition The basis (reference rate) used for calculation of the interest rate on borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 7 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_7&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition Sensitivity analysis impact on profit or loss before tax. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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