INVESTMENTS IN AND ADVANCES TO JOINT VENTURES - Investments in and Advances to Joint Ventures (Detail) (USD $)	Sep. 30, 2012		Dec. 31, 2011
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Investments in and Advances to Joint Ventures	$ 586,027,000		$ 353,907,000
Unconsolidated Joint Ventures [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Company's share of accumulated equity	461,900,000		402,200,000
Notes receivable from investments	150,400,000	[1]	400,000	[1]
Basis differentials	(167,000,000)	[2]	(145,600,000)	[2]
Deferred development fees, net of portion related to the Company's interest	(3,000,000)		(3,600,000)
Notes and accrued interest payable to DDR	143,700,000	[3]	100,500,000	[3]
Investments in and Advances to Joint Ventures	$ 586,000,000		$ 353,900,000

[1] Primarily relates to a $150.0 million preferred equity investment in BRE DDR Retail Holdings, LLC. See discussion regarding this unconsolidated joint venture later in this footnote.

[2] This amount represents the aggregate difference between the Company's historical cost basis and the equity basis reflected at the joint venture level. Basis differentials recorded upon transfer of assets are primarily associated with assets previously owned by the Company that have been transferred into an unconsolidated joint venture at fair value. Other basis differentials occur primarily when the Company has purchased interests in existing unconsolidated joint ventures at fair market values, which differ from its proportionate share of the historical net assets of the unconsolidated joint ventures. In addition, certain transaction and other costs, including capitalized interest, reserves on notes receivable as discussed below and impairments of the Company's investments that were other than temporary may not be reflected in the net assets at the joint venture level. Certain basis differentials indicated above are amortized over the life of the related assets.

[3] The Company has amounts receivable from several joint ventures aggregating $38.4 million at September 30, 2012. The remaining amounts were fully reserved by the Company at September 30, 2012.