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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
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%