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Other current assets (Details) - EUR (€) € in Thousands | Dec. 31, 2025 | Dec. 31, 2024
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Other Current Assets [Abstract] |  |
Other current assets | € 118,473 | € 105,742

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- Definition The amount of current assets that the entity does not separately disclose in the same statement or note. [Refer: Current 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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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Other current assets. + References No definition available. + Details
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Namespace Prefix: | zgn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration