Document and Entity Information
6 Months Ended
Nov. 30, 2014
Jan. 05, 2015
Document And Entity Information [Abstract]    
Entity Registrant Name GLOBAL PAYMENTS INC  
Entity Central Index Key 0001123360  
Current Fiscal Year End Date --05-31  
Entity Filer Category Large Accelerated Filer  
Document Type 10-Q  
Document Period End Date Nov. 30, 2014  
Document Fiscal Year Focus 2015  
Document Fiscal Period Focus Q2  
Amendment Flag false  
Entity Common Stock, Shares Outstanding (shares)   67,059,785