Organization and Summary of Significant Accounting Policies (Gross Intangible Assets and Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Value of above market in-place leases, net
Finite-Lived Intangible Assets [Line Items]
Intangible lease assets (included in Other assets):	$ 11,937	$ 11,751
Value of in-place leases, net
Finite-Lived Intangible Assets [Line Items]
Intangible lease assets (included in Other assets):	68,118	65,770
Value of below market in-place leases, net
Finite-Lived Intangible Assets [Line Items]
Intangible lease liabilities (included in Other liabilities):	$ 28,522	$ 29,162