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Related Parties and Information about Significant Non-Recurring Events and A tipycal/Unusual Transactions - Schedule of Transactions With Directors of the Group (Detail) - Director - EUR (€) € in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disclosure Of Transactions Between Related Parties [Line Items]
Cost	€ 33	€ 86	€ 392
Legal Services
Disclosure Of Transactions Between Related Parties [Line Items]
Cost	€ 33	€ 86	€ 392

X

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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- Definition

Amounts related party transactions cost.

+ References

No definition available.

+ Details

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Period Type:	instant

X

- Details

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X

- Details

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