XML 13 R1.htm IDEA: XBRL DOCUMENT v3.19.2
Document and Entity Information
 12 Months Ended
Dec. 31, 2018
shares
Document And Entity Information  
Entity Registrant Name GROUP SIMEC SA DE CV
Entity Central Index Key 0000887153
Document Type 20-F
Document Period End Date Dec. 31, 2018
Amendment Flag false
Current Fiscal Year End Date --12-31
Is Entity a Well-known Seasoned Issuer? No
Is Entity a Voluntary Filer? No
Is Entity's Reporting Status Current? Yes
Is Entity Emerging Growth Company? false
Entity Filer Category Large Accelerated Filer
Entity Common Stock, Shares Outstanding 466,643,007
Document Fiscal Period Focus FY
Document Fiscal Year Focus 2018
Entity Shell Company false