DECOMMISSIONING LIABILITIES - Additional Information (Detail) |
9 Months Ended | 12 Months Ended |
|---|---|---|
Sep. 30, 2026 |
Dec. 31, 2025 |
|
| Provision for decommissioning, restoration and rehabilitation costs [abstract] | ||
| Credit-adjusted risk-free rate | 5.50% | 5.50% |
| Inflation rate | 0.02 | 0.02 |