Income taxes - Schedule of Breakdown For Income Taxes (Details) - EUR (€) € in Thousands	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025
Major components of tax expense (income) [abstract]
Current taxes	€ (25,497)	€ (26,459)
Deferred taxes	7,445	6,343
Income taxes	€ (18,052)	€ (20,116)

- References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 8
-IssueDate 2025-01-01
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-URIDate 2025-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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-URIDate 2025-03-27

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-URIDate 2025-03-27

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 81
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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-IssueDate 2025-01-01
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
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Reference 12: http://www.xbrl.org/2003/role/disclosureRef
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Reference 13: http://www.xbrl.org/2003/role/disclosureRef
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-URIDate 2025-03-27

+ Details