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v3.20.1

Basis of Preparation of the Consolidated Financial Statements and Summary of Significant Accounting Policies and Practices - Schedule of Estimate Impairment Evaluations (Detail) | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Brazil [member] |  |
Disclosure of impairment of assets [line items] |  |
Average margin on EBIDTA | 40.43% | 36.43%
Average margin on CAPEX | 23.50% | 21.88%
Average pre-tax discount rate (WACC) | 11.00% | 10.38%
Puerto Rico [member] |  |
Disclosure of impairment of assets [line items] |  |
Average margin on EBIDTA | 21.94% | 23.86%
Average margin on CAPEX | 17.94% | 9.89%
Average pre-tax discount rate (WACC) | 4.39% | 4.81%
Dominican Republic [member] |  |
Disclosure of impairment of assets [line items] |  |
Average margin on EBIDTA | 47.23% | 48.64%
Average margin on CAPEX | 16.17% | 18.43%
Average pre-tax discount rate (WACC) | 13.84% | 17.66%
Mexico [member] |  |
Disclosure of impairment of assets [line items] |  |
Average margin on EBIDTA | 38.81% | 36.33%
Average margin on CAPEX | 9.84% | 7.93%
Average pre-tax discount rate (WACC) | 11.85% | 16.30%
Ecuador [member] |  |
Disclosure of impairment of assets [line items] |  |
Average margin on EBIDTA | 44.98% | 39.83%
Average margin on CAPEX | 11.65% | 11.26%
Average pre-tax discount rate (WACC) | 19.85% | 24.45%
Peru [member] |  |
Disclosure of impairment of assets [line items] |  |
Average margin on EBIDTA | 32.51% | 30.29%
Average margin on CAPEX | 18.51% | 19.95%
Average pre-tax discount rate (WACC) | 8.86% | 11.52%
El Salvador [member] |  |
Disclosure of impairment of assets [line items] |  |
Average margin on EBIDTA | 44.04% | 45.36%
Average margin on CAPEX | 25.03% | 22.61%
Average pre-tax discount rate (WACC) | 16.05% | 18.01%
Chile [member] |  |
Disclosure of impairment of assets [line items] |  |
Average margin on EBIDTA | 26.85% | 25.91%
Average margin on CAPEX | 18.00% | 14.99%
Average pre-tax discount rate (WACC) | 4.16% | 6.62%
Colombia [member] |  |
Disclosure of impairment of assets [line items] |  |
Average margin on EBIDTA | 45.58% | 45.01%
Average margin on CAPEX | 19.25% | 17.14%
Average pre-tax discount rate (WACC) | 17.27% | 20.29%
Bottom of range [member] | Europe [member] |  |
Disclosure of impairment of assets [line items] |  |
Average margin on EBIDTA | 29.40% | 22.13%
Average margin on CAPEX | 10.90% | 8.13%
Average pre-tax discount rate (WACC) | 5.77% | 8.36%
Bottom of range [member] | Other countries [member] |  |
Disclosure of impairment of assets [line items] |  |
Average margin on EBIDTA | 7.40% | 7.90%
Average margin on CAPEX | 0.57% | 0.61%
Average pre-tax discount rate (WACC) | 6.41% | 9.97%
Top of range [member] | Europe [member] |  |
Disclosure of impairment of assets [line items] |  |
Average margin on EBIDTA | 44.50% | 41.51%
Average margin on CAPEX | 19.30% | 19.40%
Average pre-tax discount rate (WACC) | 14.96% | 22.08%
Top of range [member] | Other countries [member] |  |
Disclosure of impairment of assets [line items] |  |
Average margin on EBIDTA | 52.40% | 45.91%
Average margin on CAPEX | 31.00% | 23.96%
Average pre-tax discount rate (WACC) | 34.75% | 31.63%

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