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Investments in and Advances to Joint Ventures - Investments in and Advances to Joint Ventures (Parenthetical) (Detail) (USD $)
1 Months Ended
Sep. 30, 2013
Aug. 31, 2013
Dec. 31, 2012
Oct. 31, 2013
Subsequent Events [Member]
ShoppingCenter
Schedule of Equity Method Investments [Line Items]        
Preferred equity investment in BRE DDR Retail Holdings, LLC $ 198,500,000 $ 30,000,000 $ 154,600,000  
Number of joint venture assets acquired       30
Preferred equity interest       $ 148,800,000