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Employees' Leaving Entitlement - Summary of Quantitative Sensitivity Analysis for Significant Assumptions (Detail) - EUR (€) € in Thousands	Dec. 31, 2024	Dec. 31, 2023
Actuarial assumption of turnover rate [member]
Disclosure of sensitivity analysis for actuarial assumptions [line items]
Quantitative sensitivity analysis, increase	€ 39	€ 40
Quantitative sensitivity analysis, decrease	(42)	(43)
Actuarial assumption of expected rates of inflation [member]
Disclosure of sensitivity analysis for actuarial assumptions [line items]
Quantitative sensitivity analysis, increase	143	158
Quantitative sensitivity analysis, decrease	(141)	(155)
Actuarial assumption of discount rates [member]
Disclosure of sensitivity analysis for actuarial assumptions [line items]
Quantitative sensitivity analysis, increase	(220)	(242)
Quantitative sensitivity analysis, decrease	€ 226	€ 250

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- Definition

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- Definition

The increase (decrease) in a defined benefit obligation that would have been caused by a decrease in a significant actuarial assumption that was reasonably possible at the end of the reporting period. [Refer: Actuarial assumptions [domain]]

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- Definition

The increase (decrease) in a defined benefit obligation that would have been caused by an increase in a significant actuarial assumption that was reasonably possible at the end of the reporting period. [Refer: Actuarial assumptions [domain]]

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