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Financial Risk Management - Summary of Items Designated as Hedging Instruments and Hedge Ineffectiveness (Detail) - Interest rate swaps [Member]
$ in Thousands
 12 Months Ended
Dec. 31, 2019
MXN ($)
HedgingInstrument
Disclosure Of Detailed Information About Hedging Instruments [Line Items]  
Nominal amount | HedgingInstrument 5,300,000
Carrying amount (Liabilities) $ (247,981)
Line item in the statement of financial position where the hedging instrument is included Derivative financial instruments (liabilities)
Changes in the value of the hedging instrument recognized in OCI $ (247,981)
Amount reclassified from costs of hedging reserve to profit or loss $ (1,045)
Line item in profit or loss affected by the reclassification Finance costs