Supplementary information on oil and gas activities (unaudited) - Summary of standardized measure of discounted future cash flows (Detail) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
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| Disclosure Of Costs Capitalized As Well As Expensed That Were Incurred [Line Items] | |||||||||
| Standardized measure of discounted future net cash flows | [1] | $ 6,607 | $ 4,032 | $ 3,390 | $ 3,241 | ||||
| Argentina [Member] | |||||||||
| Disclosure Of Costs Capitalized As Well As Expensed That Were Incurred [Line Items] | |||||||||
| Future cash inflows | 34,105 | [2] | 23,298 | 18,771 | |||||
| Future production costs | (9,965) | [2] | (6,956) | (5,573) | |||||
| Future development and abandonment costs | (5,365) | [2] | (4,244) | (3,198) | |||||
| Future income tax | (6,571) | [2] | (4,249) | (3,477) | |||||
| Discounted future net cash flows | 12,203 | [2] | 7,849 | 6,523 | |||||
| 10% annual discount | (5,597) | [2] | (3,817) | (3,133) | |||||
| Standardized measure of discounted future net cash flows | $ 6,607 | [2] | $ 4,032 | $ 3,390 | |||||
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