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EMPLOYEE BENEFITS - Movement in the number of conditional shares (Details)
12 Months Ended
Oct. 20, 2024
shares
Oct. 25, 2023
shares
Jun. 30, 2025
shares
R / shares
Jun. 30, 2024
shares
R / shares
Jun. 30, 2023
shares
Disclosure of terms and conditions of share-based payment arrangement [line items]          
Percentage of shares not vested due to non-performance     0.70 0.50  
Ergo Mining Operations Proprietary Limited | Treasury shares          
Disclosure of terms and conditions of share-based payment arrangement [line items]          
Shares sold or disposed of (in shares)     (936,779) (806,582) (2,715,604)
Conditional shares          
Disclosure of terms and conditions of share-based payment arrangement [line items]          
Number of share options outstanding in share-based payment arrangement     10,132,081 10,506,564 9,524,238
Conditional shares granted (in shares) 2,816,040 2,860,551      
Weighted average price (R per share) | R / shares     22.07 17.07  
Conditional shares forfeited (in shares)     (67,931) (265,061)  
Number of share options expired in share-based payment arrangement     (2,185,813) (806,582)  
Conditional shares | October 20, 2024          
Disclosure of terms and conditions of share-based payment arrangement [line items]          
Number of share options outstanding in share-based payment arrangement     0 3,122,592  
Conditional shares | October 19, 2025          
Disclosure of terms and conditions of share-based payment arrangement [line items]          
Number of share options outstanding in share-based payment arrangement     4,621,908 4,621,908  
Conditional shares | October 25, 2026          
Disclosure of terms and conditions of share-based payment arrangement [line items]          
Number of share options outstanding in share-based payment arrangement     2,694,133 2,762,064  
Conditional shares | October 22, 2027          
Disclosure of terms and conditions of share-based payment arrangement [line items]          
Number of share options outstanding in share-based payment arrangement     2,816,040 0