XML 65 R1.htm IDEA: XBRL DOCUMENT v2.4.0.8
Document and Entity Information
3 Months Ended
Apr. 30, 2014
Jun. 02, 2014
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Apr. 30, 2014  
Document Fiscal Year Focus 2015  
Document Fiscal Period Focus Q1  
Trading Symbol MENT  
Entity Registrant Name MENTOR GRAPHICS CORP  
Entity Central Index Key 0000701811  
Current Fiscal Year End Date --01-31  
Entity Filer Category Large Accelerated Filer  
Common Stock, Shares, Outstanding   113,915,567