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Note 6 - Impairments (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Note 6 - Impairments (Details) [Line Items]      
Asset Impairment Charges $ 190,218,000 $ 59,569,000 $ 32,763,000
Income Tax Expense (Benefit) 34,520,000 16,922,000 25,789,000
Impairment of Real Estate 59,600,000    
Before Income Tax Benefit and Noncontrolling Interest [Member] | Two Land Parcels and Four Operating Properties [Member]
      
Note 6 - Impairments (Details) [Line Items]      
Asset Impairment Charges 18,500,000    
Income Tax Benefit Amount [Member] | Two Land Parcels and Four Operating Properties [Member]
      
Note 6 - Impairments (Details) [Line Items]      
Income Tax Expense (Benefit) 6,400,000    
Income Tax Benefit Amount [Member] | ThreeLandParcelsMember
      
Note 6 - Impairments (Details) [Line Items]      
Income Tax Expense (Benefit)   2,900,000  
Income Tax Benefit Amount [Member] | Operating Property and Four Land Parcels [Member]
      
Note 6 - Impairments (Details) [Line Items]      
Income Tax Expense (Benefit)     1,100,000
Income Tax Benefit Amount [Member] | Preferred Equity Investment [Member]
      
Note 6 - Impairments (Details) [Line Items]      
Income Tax Expense (Benefit) 1,100,000    
Noncontrolling Interest Amount [Member] | Two Land Parcels and Four Operating Properties [Member]
      
Note 6 - Impairments (Details) [Line Items]      
Income (Loss) Attributable to Noncontrolling Interest 1,000,000    
Before Income Tax Benefit [Member] | ThreeLandParcelsMember
      
Note 6 - Impairments (Details) [Line Items]      
Asset Impairment Charges   7,600,000  
Before Income Tax Benefit [Member] | Operating Property and Four Land Parcels [Member]
      
Note 6 - Impairments (Details) [Line Items]      
Asset Impairment Charges     3,100,000
Before Income Tax Benefit [Member] | Preferred Equity Investment [Member]
      
Note 6 - Impairments (Details) [Line Items]      
Asset Impairment Charges 2,600,000    
Additionally Recorded [Member] | Redevelopment Joint Venture Property [Member] | Harlem, New York [Member]
      
Note 6 - Impairments (Details) [Line Items]      
Equity Method Investment, Other than Temporary Impairment     2,000,000
Mexico Portfolio [Member] | Operating Properties [Member]
      
Note 6 - Impairments (Details) [Line Items]      
Asset Impairment Charges 58,200,000    
Estimated Fair Value [Member]
      
Note 6 - Impairments (Details) [Line Items]      
Asset Impairment Charges 4,700,000    
Preferred Equity Investment [Member]
      
Note 6 - Impairments (Details) [Line Items]      
Asset Impairment Charges   2,700,000 2,200,000
Redevelopment Joint Venture Property [Member] | Harlem, New York [Member]
      
Note 6 - Impairments (Details) [Line Items]      
Equity Method Investment, Other than Temporary Impairment     3,100,000
Noncontrolling Interest, Ownership Percentage by Parent     13.40%
Equity Method Investments [Member]
      
Note 6 - Impairments (Details) [Line Items]      
Impairment of Real Estate $ 29,500,000 $ 11,100,000 $ 14,100,000