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Financial Instruments (Details)	12 Months Ended
	Dec. 31, 2021
Financial instruments [Abstract]
Concentration of credit risk percentage	5.00%

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- Definition

The percentage of the concentration of credit risk percentage.

+ References

No definition available.

+ Details

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Namespace Prefix:	simecb_
Data Type:	dtr:percentItemType
Balance Type:	na
Period Type:	duration

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- References

No definition available.

+ Details

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Namespace Prefix:	simecb_
Data Type:	xbrli:stringItemType
Balance Type:	na
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