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Bank Loans and issuance of Debt Securities - Summary of Reconciliation of Liabilities Arising From Financing Activities (Detail)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
MXN ($)
Disclosure Of Detailed Information About Borrowings [Line Items]  
Beginning balance $ 13,399,406
Non-cash changes, Proceeds from issuance of Debt securities 3,000,000
Non-cash changes, Proceeds from Debt long-term 96,308
Non-cash changes, Exchange effects (195,128)
Fair value adjustments 397,750
Debt Securities Current Portion [Member]  
Disclosure Of Detailed Information About Borrowings [Line Items]  
Non-cash changes, Long-term reclassification 2,200,000
Long-Term Borrowings [Member]  
Disclosure Of Detailed Information About Borrowings [Line Items]  
Beginning balance 4,535,863
Non-cash changes, Proceeds from Debt long-term 96,308
Non-cash changes, Exchange effects (195,128)
Debt Securities [Member]  
Disclosure Of Detailed Information About Borrowings [Line Items]  
Beginning balance 9,000,000
Non-cash changes, Proceeds from issuance of Debt securities 3,000,000
Non-cash changes, Long-term reclassification (2,200,000)
Derivative Financial Instruments [Member]  
Disclosure Of Detailed Information About Borrowings [Line Items]  
Beginning balance (136,457)
Fair value adjustments $ 397,750