v3.25.3
Cost of Sales - Narrative - impairment of assets (Details)
oz in Millions, R in Millions
 12 Months Ended
Jun. 30, 2025
ZAR (R)
Jun. 30, 2024
ZAR (R)
oz
Jun. 30, 2023
ZAR (R)
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Impairment of assets | R R 0 R 2,793 R 0
Target North      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Impairment of assets | R   R 2,793  
Total Mineral resource estimation before exploration drilling program   56.4  
Total Indicated Mineral resource estimation before exploration drilling program   22.0  
Total Inferred Mineral resource estimation before exploration drilling program   34.4  
Total Inferred mineral resource estimation after drilling progam   13.8  
Resource Base [Member] | Target North      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Recoverable amount | R   R 888