XML 105 R93.htm IDEA: XBRL DOCUMENT
v3.19.2

Financial information by segments (Narrative) (Details) | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Canada [Member] |  |
Disclosure of geographical areas [line items] |  |
Percentage of sales | 3.00% | 4.00%

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- 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
Name: | ifrs-full_DisclosureOfGeographicalAreasLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Percentage of sales. + References No definition available. + Details
Name: | simecb_PercentageOfSales
Namespace Prefix: | simecb_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | ifrs-full_GeographicalAreasAxis=country_CA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |