Real Estate Intangibles (Details 1) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Real Estate Intangible Amortization [Abstract]
Rental income related to above/below market tenant leases, net	$ 81	$ 206
Property operating expenses related to above/below market ground leases, net	(311)	(319)
Depreciation and amortization related to in place lease intangibles and lease commissions	$ (34,454)	$ (24,324)