Basis of preparation and material accounting policies - Summary of useful lives of property plant and equipment (Detail) |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Buildings [member] | |
| Disclosure of detailed information about property, plant and equipment [line items] | |
| Useful lives of the assets | 50 years |
| Machinery and installations [Member] | |
| Disclosure of detailed information about property, plant and equipment [line items] | |
| Useful lives of the assets | 10 years |
| Equipment and furniture [Member] | |
| Disclosure of detailed information about property, plant and equipment [line items] | |
| Useful lives of the assets | 10 years |
| Vehicles [member] | |
| Disclosure of detailed information about property, plant and equipment [line items] | |
| Useful lives of the assets | 5 years |
| Computer equipment [member] | |
| Disclosure of detailed information about property, plant and equipment [line items] | |
| Useful lives of the assets | 3 years |