v3.26.1
Share-based payment reserve - Assumption and Valuation of share based expenses (Details) - Tier 2 - Qualifying employees - ZAR (R)
12 Months Ended
Jun. 01, 2018
Jun. 30, 2026
Jun. 30, 2025
Share-based payment transaction      
Remaining vesting period   1 year 3 months 18 days 1 year 7 months 6 days
Weighted average fair value on grant date   R 61.69 R 61.69
Strike price   R 181.57 R 168
Minimum      
Share-based payment transaction      
Vesting period 3 years    
Maximum      
Share-based payment transaction      
Vesting period 10 years