Inventories - Summary of Inventories (Details) - EUR (€) € in Thousands |
Jun. 30, 2024 |
Sep. 30, 2023 |
|---|---|---|
| Classes of current inventories [abstract] | ||
| Raw materials | € 83,056 | € 69,580 |
| Work in progress | 30,656 | 23,102 |
| Finished goods | 505,413 | 502,410 |
| Total inventories at the lower of cost and net realizable value | € 619,125 | € 595,092 |