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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, 2018
MXN ($)
Disclosure Of Detailed Information About Borrowings [Line Items]  
Beginning balance $ 13,145,443
Repayments on bank loans (252,095)
Non-cash changes, Reclassification of current installments of long term debt 551,122
Non-cash changes, Exchange effects (15,422)
Non-cash changes, Fair value adjustments (29,642)
Ending balance 13,399,406
Banks Loans and Current Portion of Long Term Debt [Member]  
Disclosure Of Detailed Information About Borrowings [Line Items]  
Beginning balance 141,412
Repayments on bank loans (141,412)
Long-Term Borrowings [Member]  
Disclosure Of Detailed Information About Borrowings [Line Items]  
Beginning balance 4,110,846
Repayments on bank loans (110,683)
Non-cash changes, Reclassification of current installments of long term debt 551,122
Non-cash changes, Exchange effects (15,422)
Ending balance 4,535,863
Debt Securities [Member]  
Disclosure Of Detailed Information About Borrowings [Line Items]  
Beginning balance 9,000,000
Ending balance 9,000,000
Derivative Financial Instruments [Member]  
Disclosure Of Detailed Information About Borrowings [Line Items]  
Beginning balance (106,815)
Non-cash changes, Fair value adjustments (29,642)
Ending balance $ (136,457)