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Net defined benefit assets (liabilities) - Summary of Sensitivity Analysis for Actuarial Assumptions (Detail) | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |  |
Actuarial assumption rate | 0.50% | 0.50% | 0.50%
Discount rate |  |  |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |  |
Actuarial assumption rate | 4.80% | 5.00% | 6.70%
Compensation - salary increase |  |  |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |  |
Actuarial assumption rate | 4.00% | 4.00% | 4.00%
Mortality |  |  |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |  |
Demographic assumptions, Mortality | Panama experience | Panama experience | Panama experience
Termination |  |  |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |  |
Demographic assumptions, Mortality | 2003 SoA pension plan | 2003 SoA pension plan | 2003 SoA pension plan
Males |  |  |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |  |
Retirement age | 62 years | 62 years | 62 years
Females |  |  |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |  |
Retirement age | 57 years | 57 years | 57 years

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- Definition The retirement age used as a significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit obligation, at present value; Actuarial assumptions [domain]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2025-01-01 -Paragraph 144 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2025-en-r&anchor=para_144&doctype=Standard -URIDate 2025-03-27 + Details
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- Definition The reasonably possible percentage of the increase in the actuarial assumption used to determine the present value of defined benefit obligation. [Refer: Actuarial assumptions [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2025-01-01 -Paragraph 145 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2025-en-r&anchor=para_145_a&doctype=Standard -URIDate 2025-03-27 + Details
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