Financial risk management and financial instruments - Foreign Currency Risk (Details) - Maximum |
12 Months Ended |
|---|---|
Jun. 30, 2026 | |
| Foreign exchange zero cost collars | |
| Financial risk management and financial instruments | |
| Maturity period of derivatives | 12 months |
| Put options | |
| Financial risk management and financial instruments | |
| Maturity period of derivatives | 12 months |