Intangible Lease Liabilities, Net (Schedule of Intangible Lease Liabilities, Net) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Intangible Lease Liabilities, Net [Abstract]
Below-market leases, net of accumulated amortization of $14,325 and $12,437, respectively (with a weighted average remaining life of 17.4 years and 17.7 years, respectively)	$ 46,080	$ 47,968
Ground leasehold liabilities, net of accumulated amortization of $239 and $177, respectively (with a weighted average remaining life of 42.7 years and 43.2 years, respectively)	5,086	5,148
Total intangible lease liabilities, net	51,166	53,116
Below-market leases, accumulated amortization	$ 14,325	$ 12,437
Below-market leases, weighted average remaining life	17 years 4 months 24 days	17 years 8 months 12 days
Ground leasehold liabilities, accumulated amortization	$ 239	$ 177
Ground leasehold liabilities, weighted average remaining life	42 years 8 months 12 days	43 years 2 months 12 days
Intangible lease liabilities, weighted average remaining life	19 years 10 months 24 days	20 years 2 months 12 days