Operating Expenses - Additional Information (Details) - Selling and Distribution Expenses - EUR (€) € in Millions	3 Months Ended	6 Months Ended
Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Disclosure of attribution of expenses by nature to their function [line items]
Selling and marketing expenses	€ 37.8	€ 31.1	€ 72.3	€ 60.3
Logistics expenses	€ 35.1	€ 35.6	€ 66.2	€ 65.3

The amount of expense relating to the marketing and selling of goods or services.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 85
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_85&doctype=Standard
-URIDate 2024-03-27

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