Organization and Summary of Significant Accounting Policies (Summary of Intangible Assets and Liabilities, Net of Accumulated Amortization) (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Goodwill And Intangible Assets [Line Items]
Subtotal	$ 790	$ 3,413
Goodwill	5,662	5,662	7,156	7,156
Total intangible assets	6,452	9,075
Below-market lease intangibles	(2,045)	(4,815)
Value of in-place lease intangibles [Member]
Goodwill And Intangible Assets [Line Items]
Subtotal	699	3,151
Above-market lease intangibles [Member]
Goodwill And Intangible Assets [Line Items]
Subtotal	$ 91	$ 262