Notes to the Balance Sheet - Summary of Internally generated intangible assets (Details) - EUR (€) € in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Intangible Assets [Line Items]
Carrying amount	€ 844,109	€ 886,583	€ 838,322
Impairment
Intangible Assets [Line Items]
Carrying amount	(700)	(7,800)
Internally Generated Intangible Assets
Intangible Assets [Line Items]
Carrying amount	€ 14,538	€ 16,940	€ 11,517

The amount of intangible assets and goodwill held by the entity. [Refer: Goodwill; Intangible assets other than goodwill]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2023-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_55&doctype=Standard
-URIDate 2023-03-23

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant