Investments in Partnerships (Summary of Equity Investments) (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Investments in real estate, at cost:
Retail properties	$ 416,964	$ 414,515
Construction in progress	2,298	2,003
Total investments in real estate	419,262	416,518
Accumulated depreciation	(169,369)	(157,361)
Net investments in real estate	249,893	259,157
Cash and cash equivalents	15,327	9,833
Deferred costs and other assets, net	19,474	18,605
Total assets	284,694	287,595
LIABILITIES AND PARTNERS' EQUITY (DEFICIT):
Mortgage loans	398,717	405,297
Other liabilities	9,667	9,130
Total liabilities	408,384	414,427
Net deficit	(123,690)	(126,832)
Partners' share	(66,325)	(67,735)
Company's share	(57,365)	(59,097)
Excess investment	8,837	9,078
Net investments and advances	(48,528)	(50,019)
Investment in partnerships, at equity	15,963	14,855
Distributions in excess of partnership investments	$ (64,491)	$ (64,874)