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Investment in Real Estate - Real Estate by Property Type and Segment (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Real Estate Properties [Line Items]      
Development property $ 170,792,000us-gaap_DevelopmentInProcess $ 229,354,000us-gaap_DevelopmentInProcess  
Operating property 209,152,000joe_IncomeProducingDepreciableOperatingProperty 206,910,000joe_IncomeProducingDepreciableOperatingProperty  
Less: Accumulated depreciation 58,132,000us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation 53,496,000us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation  
Net operating property 151,020,000joe_Joe_IncomeProducingDepreciableOperatingPropertyNetofAccumulatedDepreciation 153,414,000joe_Joe_IncomeProducingDepreciableOperatingPropertyNetofAccumulatedDepreciation  
Investment in unconsolidated affiliates 0us-gaap_RealEstateInvestmentsUnconsolidatedRealEstateAndOtherJointVentures 2,241,000us-gaap_RealEstateInvestmentsUnconsolidatedRealEstateAndOtherJointVentures  
Investment in real estate, net 321,812,000us-gaap_RealEstateInvestmentPropertyNet 385,009,000us-gaap_RealEstateInvestmentPropertyNet  
Land and land improvements 72,284,000us-gaap_LandAndLandImprovements 74,070,000us-gaap_LandAndLandImprovements  
Buildings and building improvements 127,577,000us-gaap_InvestmentBuildingAndBuildingImprovements 99,417,000us-gaap_InvestmentBuildingAndBuildingImprovements  
Timber 9,291,000us-gaap_TimberAndTimberlands 33,423,000us-gaap_TimberAndTimberlands  
Promissory Note Received for Sale of Equity Interest in Joint Venture 3,000,000joe_PromissoryNoteReceivedforSaleofEquityInterestinJointVenture    
Depreciation expense related to real estate investments 5,700,000us-gaap_DepreciationNonproduction 5,300,000us-gaap_DepreciationNonproduction 5,900,000us-gaap_DepreciationNonproduction
Depletion expense 500,000us-gaap_Depletion 1,200,000us-gaap_Depletion 1,600,000us-gaap_Depletion
Minimum      
Real Estate Properties [Line Items]      
Estimated Useful Life (in years) 3 years    
Minimum | Land and land improvements      
Real Estate Properties [Line Items]      
Estimated Useful Life (in years) 5 years    
Minimum | Buildings and building improvements      
Real Estate Properties [Line Items]      
Estimated Useful Life (in years) 20 years    
Maximum      
Real Estate Properties [Line Items]      
Estimated Useful Life (in years) 30 years    
Maximum | Land and land improvements      
Real Estate Properties [Line Items]      
Estimated Useful Life (in years) 20 years    
Maximum | Buildings and building improvements      
Real Estate Properties [Line Items]      
Estimated Useful Life (in years) 40 years    
Residential real estate      
Real Estate Properties [Line Items]      
Development property 102,411,000us-gaap_DevelopmentInProcess
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ResidentialRealEstateMember
130,616,000us-gaap_DevelopmentInProcess
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ResidentialRealEstateMember
 
Operating property 1,544,000joe_IncomeProducingDepreciableOperatingProperty
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ResidentialRealEstateMember
2,071,000joe_IncomeProducingDepreciableOperatingProperty
/ us-gaap_FinancialInstrumentAxis
= us-gaap_ResidentialRealEstateMember
 
Commercial real estate      
Real Estate Properties [Line Items]      
Development property 59,405,000us-gaap_DevelopmentInProcess
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
58,659,000us-gaap_DevelopmentInProcess
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommercialRealEstateMember
 
Resorts, leisure and leasing operations      
Real Estate Properties [Line Items]      
Development property 3,207,000us-gaap_DevelopmentInProcess
/ us-gaap_FinancialInstrumentAxis
= joe_ResortsLeisureAndOperationsMember
28,737,000us-gaap_DevelopmentInProcess
/ us-gaap_FinancialInstrumentAxis
= joe_ResortsLeisureAndOperationsMember
 
Operating property 188,721,000joe_IncomeProducingDepreciableOperatingProperty
/ us-gaap_FinancialInstrumentAxis
= joe_ResortsLeisureAndOperationsMember
146,624,000joe_IncomeProducingDepreciableOperatingProperty
/ us-gaap_FinancialInstrumentAxis
= joe_ResortsLeisureAndOperationsMember
 
Forestry      
Real Estate Properties [Line Items]      
Development property 3,278,000us-gaap_DevelopmentInProcess
/ us-gaap_FinancialInstrumentAxis
= joe_ForestryMember
8,976,000us-gaap_DevelopmentInProcess
/ us-gaap_FinancialInstrumentAxis
= joe_ForestryMember
 
Operating property 18,839,000joe_IncomeProducingDepreciableOperatingProperty
/ us-gaap_FinancialInstrumentAxis
= joe_ForestryMember
58,170,000joe_IncomeProducingDepreciableOperatingProperty
/ us-gaap_FinancialInstrumentAxis
= joe_ForestryMember
 
Corporate      
Real Estate Properties [Line Items]      
Development property 2,491,000us-gaap_DevelopmentInProcess
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CorporateMember
2,366,000us-gaap_DevelopmentInProcess
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CorporateMember
 
Other      
Real Estate Properties [Line Items]      
Operating property 48,000joe_IncomeProducingDepreciableOperatingProperty
/ us-gaap_FinancialInstrumentAxis
= joe_OtherRealEstateSegmentMember
45,000joe_IncomeProducingDepreciableOperatingProperty
/ us-gaap_FinancialInstrumentAxis
= joe_OtherRealEstateSegmentMember
 
Pier Park North      
Real Estate Properties [Line Items]      
Development property 3,100,000us-gaap_DevelopmentInProcess
/ us-gaap_FinancialInstrumentAxis
= joe_PierParkNorthMember
28,400,000us-gaap_DevelopmentInProcess
/ us-gaap_FinancialInstrumentAxis
= joe_PierParkNorthMember
 
Operating property $ 41,600,000joe_IncomeProducingDepreciableOperatingProperty
/ us-gaap_FinancialInstrumentAxis
= joe_PierParkNorthMember