Financial Instruments and Financial Risk Management - Additional Information (Details) - EUR (€) |
3 Months Ended | 9 Months Ended | 12 Months Ended |
|---|---|---|---|
Jun. 30, 2024 |
Jun. 30, 2024 |
Sep. 30, 2023 |
|
| Disclosure of fair value measurement [abstract] | |||
| Transfers out of level 1 into level 2 of fair value hierarchy, liabilities held at end of reporting period | € 0 | € 0 | |
| Transfers out of level 2 into level 1 of fair value hierarchy, liabilities held at end of reporting period | € 0 | € 0 | |
| Reclassified the cash flow hedge reserve of a cumulative loss | € 300,000 |