XML 60 R1.htm IDEA: XBRL DOCUMENT v3.3.0.814
Document and Entity Information - shares
9 Months Ended
Sep. 30, 2015
Nov. 04, 2015
Document and Entity Information [Abstract]    
Entity Registrant Name GEO GROUP INC  
Entity Central Index Key 0000923796  
Document Type 10-Q  
Trading Symbol GEO  
Document Period End Date Sep. 30, 2015  
Amendment Flag false  
Document Fiscal Year Focus 2015  
Document Fiscal Period Focus Q3  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   74,655,580