Supplementary information on oil and gas activities (unaudited) - Additional Information (Detail) |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Disclosure Of Costs Capitalized As Well As Expensed That Were Incurred Line items [Line Items] | |
| Natural gas reserves criteria | Natural gas reserves were converted into liquid equivalent using the conversion factor of 5.615 cubic feet of Natural gas per 1 barrel of liquid equivalent. |