OTHER INVESTMENTS - Key observable/unobservable inputs (Details) - Rand Refinery Proprietary Limited ("Rand Refinery") - R / kg |
12 Months Ended | |
|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items] | ||
| Forecast average gold price | 2,273,530 | 1,620,480 |
| Forecast average silver price | 32,795 | 18,598 |
| Average South African CPI | 4.90% | 4.50% |
| Long-Term Government Bond Rate | 8.40% | 9.70% |
| Terminal growth rate | ||
| Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items] | ||
| Significant unobservable input, investments in other entities, percentage | 0.024 | 0.045 |
| Weighted average cost of capital | ||
| Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items] | ||
| Significant unobservable input, investments in other entities, percentage | 0.158 | 0.160 |