Document And Entity Information (USD $)
12 Months Ended
May 31, 2011
Jul. 15, 2011
Document And Entity Information    
Document Type 10-K  
Amendment Flag false  
Document Period End Date May 31, 2011  
Document Fiscal Period Focus FY  
Document Fiscal Year Focus 2011  
Entity Registrant Name GLOBAL PAYMENTS INC  
Entity Central Index Key 0001123360  
Current Fiscal Year End Date --05-31  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   80,336,017
Entity Well-known Seasoned Issuer Yes  
Entity Current Reporting Status Yes  
Entity Voluntary Filers No  
Entity Public Float $ 3,293,949,763