Income Taxes - Maturities of income tax payable (Details) - 2014 Tax Reform $ in Thousands	Dec. 31, 2020 MXN ($)
Income Taxes
Income tax payable	$ 1,759,301
2021
Income Taxes
Income tax payable	992,186
2022
Income Taxes
Income tax payable	643,171
2023
Income Taxes
Income tax payable	$ 123,944

The amount of current tax for current and prior periods to the extent unpaid. Current tax is the amount of income taxes payable (recoverable) in respect of the taxable profit (tax loss) for a period.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2020-01-01
-Paragraph 54
-Subparagraph n
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_54_n&doctype=Standard
-URIDate 2020-01-01

Name:	ifrs-full_CurrentTaxLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant