Financial Instruments and Financial Risk Management - Schedule of Fair Values and Fair Value Hierarchy of Financial Instruments Carried at Fair Value on Recurring Basis (Details) - Recurring Fair Value Measurement - EUR (€) € in Thousands |
Dec. 31, 2023 |
Sep. 30, 2023 |
|---|---|---|
| Disclosure of detailed information about financial instruments [line items] | ||
| Derivative assets | € 36,727 | € 31,708 |
| Level 2 | FVtPL | ||
| Disclosure of detailed information about financial instruments [line items] | ||
| Derivative liabilities | 480 | 6,925 |
| Level 2 | FVtPL | ||
| Disclosure of detailed information about financial instruments [line items] | ||
| Derivative assets not designated as hedging instruments | 35,629 | 28,795 |
| Level 2 | FVtOCI | ||
| Disclosure of detailed information about financial instruments [line items] | ||
| Derivative assets designated as hedging instruments | € 1,098 | € 2,913 |