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Related Parties - Summary of Transactions with Related Parties (Detail) - MXN ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Disclosure of transactions between related parties [abstract]    
Construction services, purchases of materials, inventories and property, plant and equipment $ 7,437,743 $ 9,450,787
Insurance premiums, fees paid for administrative and operating services, brokerage services and others 3,307,409 2,420,466
Associated costs for towers' sale 1,584,080  
Rent of towers 804,171 312,726
Other services 1,535,383 1,042,218
Investments and expenses 14,668,786 13,226,197
Service revenues 630,643 547,805
Sales of towers 7,662,188  
Sales of equipment 1,118,923 598,162
Revenues $ 9,411,754 $ 1,145,967