XML 12 R1.htm IDEA: XBRL DOCUMENT v3.4.0.3
Document and Entity Information - shares
9 Months Ended
Mar. 31, 2016
Apr. 25, 2016
Document And Entity Information [Abstract]    
Entity Registrant Name OPEN TEXT CORP  
Entity Central Index Key 0001002638  
Current Fiscal Year End Date --06-30  
Entity Filer Category Large Accelerated Filer  
Document Type 10-Q  
Document Period End Date Mar. 31, 2016  
Document Fiscal Year Focus 2016  
Document Fiscal Period Focus Q3  
Trading Symbol otex  
Amendment Flag false  
Entity Common Stock, Shares Outstanding   121,289,277