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Income Taxes - Summary of Income Tax Expense (Benefit) (Detail) - MXN ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Disclosure of income taxes [line items]      
Current $ 1,849,551 $ 1,532,875 $ 1,030,026
Deferred (408,910) (266,302) (182,717)
Income tax 1,440,641 1,266,573 847,309
ISR [Member]      
Disclosure of income taxes [line items]      
Current 1,849,551 1,532,875 1,018,647
Deferred (408,910) (266,302) (182,717)
Cancellation of unrecoverable tax on dividends     11,379
Income tax $ 1,440,641 $ 1,266,573 $ 847,309