Employee benefits, Net cost for period (Details) - MXN ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Details for net cost [Abstract]
Interest cost	$ (220)	$ (257)
Net cost for the period	(4,110)	19,027
Pensions and Seniority Premiums [Member]
Details for net cost [Abstract]
Current service cost	(21,158)	4,541
Interest cost	12,371	11,892
Net cost for the period	(8,787)	16,433
Termination of Employment [Member]
Details for net cost [Abstract]
Current service cost	3,907	1,727
Interest cost	770	867
Net cost for the period	$ 4,677	$ 2,594

The increase (decrease) in the net defined benefit liability (asset) resulting from employee service in the current period. [Refer: Net defined benefit liability (asset)]

No definition available.

+ Details

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- References

No definition available.

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- Definition

The increase (decrease) in the net defined benefit liability (asset). [Refer: Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2021-01-01
-Paragraph 141
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141&doctype=Standard
-URIDate 2021-03-24

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- Definition

The increase (decrease) in the net defined benefit liability (asset) resulting from the passage of time. [Refer: Interest expense; Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2021-01-01
-Paragraph 141
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_b&doctype=Standard
-URIDate 2021-03-24

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- Details

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