Commitments and Contingencies - Schedule of Aggregate Commitments (Details) - EUR (€) € in Thousands |
Jun. 30, 2025 |
Sep. 30, 2024 |
|---|---|---|
| Disclosure of contingent liabilities [abstract] | ||
| Purchase commitments | € 25,815 | € 25,778 |
| Lease payments | 8,574 | 13,598 |
| Total | € 34,389 | € 39,376 |