Issued share capital, share premium account and share options - Share premium account (Details) - EUR (€) € in Millions |
12 Months Ended | ||
|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2024 |
|
| Balance at beginning of year | € 1,421.6 | € 1,404.3 | |
| Balance at end of year | 1,434.8 | 1,421.6 | € 1,404.3 |
| Share Premium Account | |||
| Balance at beginning of year | 1,421.6 | 1,404.3 | 1,379.9 |
| Net proceeds from shares issued | 3.2 | 4.9 | 16.4 |
| Share premium receivable on shares issued | 10.0 | 12.4 | 8.0 |
| Balance at end of year | € 1,434.8 | € 1,421.6 | € 1,404.3 |