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Lease liabilities - Schedule of Lease Liabilities by Maturity Date (Details) - EUR (€) € in Thousands | Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
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Disclosure Of Maturity Analysis Of Lease Liabilities [Line Items] |  |  |
Lease liabilities | € 731,589 | € 661,685 | € 593,725
Within 1 year | Discounted cash flow |  |  |
Disclosure Of Maturity Analysis Of Lease Liabilities [Line Items] |  |  |
Lease liabilities | 140,937 | 142,957 |
Between 1 and 2 years | Discounted cash flow |  |  |
Disclosure Of Maturity Analysis Of Lease Liabilities [Line Items] |  |  |
Lease liabilities | 122,545 | 114,935 |
Between 2 and 3 years | Discounted cash flow |  |  |
Disclosure Of Maturity Analysis Of Lease Liabilities [Line Items] |  |  |
Lease liabilities | 105,798 | 100,484 |
Year 4 | Discounted cash flow |  |  |
Disclosure Of Maturity Analysis Of Lease Liabilities [Line Items] |  |  |
Lease liabilities | 92,262 | 78,023 |
Beyond | Discounted cash flow |  |  |
Disclosure Of Maturity Analysis Of Lease Liabilities [Line Items] |  |  |
Lease liabilities | € 270,047 | € 225,286 |

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- Definition The amount of liabilities related to the entity's leases. Lease is a contract, or part of a contract, that conveys the right to use an underlying asset for a period of time in exchange for consideration. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2025-01-01 -Paragraph 47 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2025-en-r&anchor=para_47_b&doctype=Standard -URIDate 2025-03-27 + Details
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