Intangible Assets and Liabilities (Details 1) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014
Amortizable Intangible Assets
Acquired finite lived intangible assets	$ 80,692
Amortizable Intangible Liability
Acquired finite-lived intangible liabilities, weighted average useful life	18 years 3 months 18 days
Below market lease, acquired	(3,768)
In-place lease
Amortizable Intangible Assets
Acquired finite-lived intangible assets, weighted average useful life	10 years 8 months 12 days
Acquired finite lived intangible assets	66,024
Above market rent
Amortizable Intangible Assets
Acquired finite-lived intangible assets, weighted average useful life	15 years 1 month 6 days
Acquired finite lived intangible assets	5,043
Below-market ground lease
Amortizable Intangible Assets
Acquired finite-lived intangible assets, weighted average useful life	74 years 10 months 24 days
Acquired finite lived intangible assets	$ 9,625