Operating Expenses - Additional Information (Details) - Selling and Distribution Expenses - EUR (€) € in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Disclosure of attribution of expenses by nature to their function [line items] | ||||
| Selling and marketing expenses | € 35.9 | € 37.8 | € 72.4 | € 72.3 |
| Logistics expenses | € 36.3 | € 35.1 | € 66.4 | € 66.2 |