Share-Based Payments - 2018 Sharesave Plan and Bonus Equity Payments (Details) - 2018 Sharesave Plan |
12 Months Ended |
|---|---|
Jun. 30, 2024 | |
| Disclosure of terms and conditions of share-based payment arrangement [line items] | |
| Employment requisite period | 5 years |
| Maximum period shares may be granted after approval | 10 years |
| Exercisable period | 6 months |
| Bottom of range | |
| Disclosure of terms and conditions of share-based payment arrangement [line items] | |
| Employee contribution period | 3 years |
| Top of range | |
| Disclosure of terms and conditions of share-based payment arrangement [line items] | |
| Employee contribution period | 5 years |