Annual report pursuant to Section 13 and 15(d)

Investments in Unconsolidated Real Estate Joint Ventures - Unconsolidated Real Estate Joint Ventures (Details)

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Investments in Unconsolidated Real Estate Joint Ventures - Unconsolidated Real Estate Joint Ventures (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2013
sqft
Dec. 31, 2012
sqft
Nov. 02, 2012
sqft
Schedule of Equity Method Investments [Line Items]      
Carrying Value of Investment (in millions) $ 140.2 $ 126.6  
Total Joint Venture Debt (in millions) 202.7 325.2  
Deer Park [Member]
     
Schedule of Equity Method Investments [Line Items]      
Ownership %   33.30%  
Square Feet   741,981  
Carrying Value of Investment (in millions)   3.0  
Total Joint Venture Debt (in millions)   246.9  
Deer Park Warehouse [Member]
     
Schedule of Equity Method Investments [Line Items]      
Ownership %   33.30%  
Square Feet   29,253  
Carrying Value of Investment (in millions)   0  
Total Joint Venture Debt (in millions)   1.9  
Charlotte [Member]
     
Schedule of Equity Method Investments [Line Items]      
Ownership % 50.00%    
Square Feet 0    
Carrying Value of Investment (in millions) 11.6    
Total Joint Venture Debt (in millions) 0    
Galveston/Houston [Member]
     
Schedule of Equity Method Investments [Line Items]      
Ownership % 50.00% 50.00%  
Square Feet 352,705 352,705  
Carrying Value of Investment (in millions) 7.4 36.7  
Total Joint Venture Debt (in millions) 65.0 0  
National Harbor [Member]
     
Schedule of Equity Method Investments [Line Items]      
Ownership % 50.00% 50.00%  
Square Feet 336,000 0  
Carrying Value of Investment (in millions) 16.7 2.6  
Total Joint Venture Debt (in millions) 52.4 0  
RioCan Canda [Member]
     
Schedule of Equity Method Investments [Line Items]      
Ownership % 50.00% 50.00%  
Square Feet 432,836 434,562  
Carrying Value of Investment (in millions) 85.7 62.2  
Total Joint Venture Debt (in millions) 17.9 20.1  
Westgate [Member]
     
Schedule of Equity Method Investments [Line Items]      
Ownership % 58.00% 58.00%  
Square Feet 331,739 332,234 332,000
Carrying Value of Investment (in millions) 16.1 19.1  
Total Joint Venture Debt (in millions) 43.1 32.0  
Wisconsin Dells [Member]
     
Schedule of Equity Method Investments [Line Items]      
Ownership % 50.00% 50.00%  
Square Feet 265,086 265,086  
Carrying Value of Investment (in millions) 2.5 2.8  
Total Joint Venture Debt (in millions)   24.3  
Other [Member]
     
Schedule of Equity Method Investments [Line Items]      
Square Feet 0 0  
Carrying Value of Investment (in millions) 0.2 0.2  
Total Joint Venture Debt (in millions) $ 0 $ 0