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Document and Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2015
May. 18, 2016
Jun. 30, 2015
Document And Entity Information [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2015    
Document Fiscal Year Focus 2015    
Document Fiscal Period Focus FY    
Trading Symbol EVTC    
Entity Registrant Name EVERTEC, Inc.    
Entity Central Index Key 0001559865    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Current Reporting Status No    
Entity Voluntary Filers No    
Entity Filer Category Large Accelerated Filer    
Entity Common Stock, Shares Outstanding   74,819,155  
Entity Public Float     $ 1,363,977,562