v3.26.1
Inventories - Summary of Inventories (Details) - EUR (€)
€ in Thousands
Mar. 31, 2026
Sep. 30, 2025
Classes of current inventories [abstract]    
Raw materials € 75,498 € 71,951
Work in progress 83,386 64,525
Finished goods 685,822 567,941
Inventories € 844,706 € 704,417