Quarterly report pursuant to Section 13 or 15(d)

Investments In Unconsolidated Real Estate Joint Ventures (Investments In Unconsolidated Real Estate Joint Ventures) (Details)

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Investments In Unconsolidated Real Estate Joint Ventures (Investments In Unconsolidated Real Estate Joint Ventures) (Details) - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Jun. 30, 2017
Dec. 31, 2016
Schedule of Equity Method Investments [Line Items]        
Investments in unconsolidated real estate joint ventures $ 41,801 $ 51,234 [1] $ 49,381 $ 49,392
Altis at Kendall Square, LLC [Member]        
Schedule of Equity Method Investments [Line Items]        
Investments in unconsolidated real estate joint ventures 70 78    
Altis At Lakeline - Austin Investors LLC [Member]        
Schedule of Equity Method Investments [Line Items]        
Investments in unconsolidated real estate joint ventures 3,794 4,156    
New Urban/BBX Development, LLC [Member]        
Schedule of Equity Method Investments [Line Items]        
Investments in unconsolidated real estate joint ventures 446 2,064    
Sunrise and Bayview Partners, LLC [Member]        
Schedule of Equity Method Investments [Line Items]        
Investments in unconsolidated real estate joint ventures 1,455 1,499    
Hialeah Communities, LLC [Member]        
Schedule of Equity Method Investments [Line Items]        
Investments in unconsolidated real estate joint ventures 111 473    
PGA Design Center Holdings, LLC [Member]        
Schedule of Equity Method Investments [Line Items]        
Investments in unconsolidated real estate joint ventures 774 1,862    
CCB Miramar, LLC [Member]        
Schedule of Equity Method Investments [Line Items]        
Investments in unconsolidated real estate joint ventures 1,225 1,225    
Centra Falls, LLC [Member]        
Schedule of Equity Method Investments [Line Items]        
Investments in unconsolidated real estate joint ventures 10 159    
The Addison on Millenia Investment, LLC [Member]        
Schedule of Equity Method Investments [Line Items]        
Investments in unconsolidated real estate joint ventures 5,453 5,933    
BBX/S Millenia Blvd Investments, LLC [Member]        
Schedule of Equity Method Investments [Line Items]        
Investments in unconsolidated real estate joint ventures 147 5,611    
Altis at Bonterra - Hialeah, LLC [Member]        
Schedule of Equity Method Investments [Line Items]        
Investments in unconsolidated real estate joint ventures 19,405 19,566    
Altis at Shingle Creek Manager, LLC [Member]        
Schedule of Equity Method Investments [Line Items]        
Investments in unconsolidated real estate joint ventures 359 338    
Altis at Grand Central Capital, LLC [Member]        
Schedule of Equity Method Investments [Line Items]        
Investments in unconsolidated real estate joint ventures 1,926 1,872    
Centra Falls II, LLC [Member]        
Schedule of Equity Method Investments [Line Items]        
Investments in unconsolidated real estate joint ventures 431 551    
BBX/Label Chapel Trail Development, LLC [Member]        
Schedule of Equity Method Investments [Line Items]        
Investments in unconsolidated real estate joint ventures 4,797 4,885    
Altis Promenade Capital, LLC [Member]        
Schedule of Equity Method Investments [Line Items]        
Investments in unconsolidated real estate joint ventures 983 $ 962    
Altis Ludlam - Miami Investor, LLC [Member]        
Schedule of Equity Method Investments [Line Items]        
Investments in unconsolidated real estate joint ventures $ 415      
[1] See Note 1 for a summary of adjustments.