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Short-term debt (Details) - MXN ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Aug. 17, 1998
Disclosure of detailed information about borrowings [line items]
Principal amount outstanding	$ 6,020	$ 5,700
Medium-term notes of Simec [Member]
Disclosure of detailed information about borrowings [line items]
Annual interest rate			10.50%
Principal amount outstanding	6,020	5,700
Medium-term notes of Simec [Member] | USD [Member]
Disclosure of detailed information about borrowings [line items]
Principal amount outstanding	$ 300	$ 300

X

- Definition

The interest rate on borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2020-01-01
-Paragraph 7
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-URIDate 2020-01-01

+ Details

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Balance Type:	na
Period Type:	instant

X

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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X

- Definition

The amount of current borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2020-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_55&doctype=Standard
-URIDate 2020-01-01

+ Details

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X

- Details

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Namespace Prefix:
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- Details

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