Intangible Assets and Goodwill - Accounting Policy (Details) |
12 Months Ended |
|---|---|
Mar. 31, 2025 | |
| Customer relationships | |
| Disclosure of detailed information about intangible assets [line items] | |
| Useful life | 20 years |
| Other operating licenses | |
| Disclosure of detailed information about intangible assets [line items] | |
| Useful life | 10 years |
| Patents | |
| Disclosure of detailed information about intangible assets [line items] | |
| Useful life | 10 years |
| IP and know-how | |
| Disclosure of detailed information about intangible assets [line items] | |
| Useful life | 10 years |
| ERP software | |
| Disclosure of detailed information about intangible assets [line items] | |
| Useful life | 5 years |