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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, 2017
MXN ($)
Disclosure Of Detailed Information About Borrowings [Line Items]  
Beginning balance $ 9,741,822
Repayments on bank loans (151,724)
Non-cash changes, Proceeds from issuance of Debt securities 3,800,000
Non-cash changes, Exchange effects (210,294)
Non-cash changes, Fair value adjustments (34,361)
Ending balance 13,145,443
Banks Loans and Current Portion of Long Term Debt [Member]  
Disclosure Of Detailed Information About Borrowings [Line Items]  
Beginning balance 84,758
Repayments on bank loans (84,758)
Non-cash changes, Reclassification of current installments of long term debt 141,412
Ending balance 141,412
Long-Term Borrowings [Member]  
Disclosure Of Detailed Information About Borrowings [Line Items]  
Beginning balance 4,529,518
Repayments on bank loans (66,966)
Non-cash changes, Reclassification of current installments of long term debt (141,412)
Non-cash changes, Exchange effects (210,294)
Ending balance 4,110,846
Debt Securities [Member]  
Disclosure Of Detailed Information About Borrowings [Line Items]  
Beginning balance 5,200,000
Non-cash changes, Proceeds from issuance of Debt securities 3,800,000
Ending balance 9,000,000
Derivative Financial Instruments [Member]  
Disclosure Of Detailed Information About Borrowings [Line Items]  
Beginning balance (72,454)
Non-cash changes, Fair value adjustments (34,361)
Ending balance $ (106,815)