Trade Accounts Receivable - Summary of Trade Accounts Receivable (Detail) - MXN ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Trade Accounts Receivable [Abstract]
Trade accounts receivable	$ 1,530,432	$ 1,444,037	$ 1,028,898
Allowance for expected credit loss	(51,022)	(48,675)	(31,528)
Trade accounts receivable	$ 1,479,410	$ 1,395,362	$ 997,370

The amount of current trade receivables. [Refer: Trade receivables]

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 78
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_78_b&doctype=Standard
-URIDate 2019-03-27

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 68
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_68&doctype=Standard
-URIDate 2019-03-27

Name:	ifrs-full_CurrentTradeReceivables
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant