v2.4.0.8
Document and Entity Information
6 Months Ended
Jun. 30, 2015
Aug. 03, 2015
Document Documentand Entity Information [Abstract]    
Entity Registrant Name ST JOE CO  
Trading Symbol JOE  
Entity Central Index Key 0000745308  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Document Type 10-Q  
Document Period End Date Jun. 30, 2015  
Document Fiscal Year Focus 2015  
Document Fiscal Period Focus Q2  
Amendment Flag false  
Entity Well-known Seasoned Issuer Yes  
Entity Current Reporting Status Yes  
Entity Voluntary Filers No  
Entity Common Stock, Shares Outstanding   92,056,126