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Financial Risk Management - Summary of Items Designated as Hedged Items (Detail) - MXN ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure Of Detailed Information About Hedging Instruments [Line Items]      
Cash Flow hedge reserve $ 29,658 $ (471,107) $ (172,094)
Variable-rate instruments [Member]      
Disclosure Of Detailed Information About Hedging Instruments [Line Items]      
Change in value used for calculating hedge ineffectiveness (51,285) (661,653) (247,981)
Cash Flow hedge reserve $ 29,658 $ (471,107) $ (247,981)