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Organization, Formation And Basis of Presentation - Additional Information (Detail)
Dec. 31, 2015
partnership
property
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]  
Distribution of REIT taxable income (excluding net capital gains) to its stockholders 90.00%
Number of partnerships | partnership 2
Number of real estate properties, held for sale 1
Shopping Centers  
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]  
Number of real estate properties 50
Mixed-Use Properties  
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]  
Number of real estate properties 6
Non-operating Development Properties  
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]  
Number of real estate properties 3