v2.4.0.6
Document And Entity Information
9 Months Ended
Sep. 30, 2012
Nov. 02, 2012
Document And Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2012  
Document Fiscal Year Focus 2012  
Document Fiscal Period Focus Q3  
Trading Symbol ctsh  
Entity Registrant Name COGNIZANT TECHNOLOGY SOLUTIONS CORP  
Entity Central Index Key 0001058290  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   300,191,775