Intangible Assets and Liabilities (Details 2) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Amortizable Intangible Assets
Finite-lived intangible assets, gross	$ 297,474	$ 288,578
Less: accumulated amortization	(56,251)	(44,737)
Finite-lived intangible assets, net	241,223	243,841
Goodwill	24,794	23,389
Total intangible assets, gross	322,268	311,967
Total intangible assets, net	266,017	267,230
Amortizable Intangible Liability
Finite-Lived Intangible Liabilities, Gross	(15,623)	(15,560)
Finite Lived Intangible Liabilities Accumulated Amortization	2,113	1,548
Finite Lived Intangible Liabilities Net	(13,510)	(14,012)
Below-market rent
Amortizable Intangible Liability
Finite-Lived Intangible Liabilities, Gross	(15,505)	(15,439)
Finite Lived Intangible Liabilities Accumulated Amortization	2,111	1,546
Finite Lived Intangible Liabilities Net	(13,394)	(13,893)
Above-market ground lease
Amortizable Intangible Liability
Finite-Lived Intangible Liabilities, Gross	(118)	(121)
Finite Lived Intangible Liabilities Accumulated Amortization	2	2
Finite Lived Intangible Liabilities Net	(116)	(119)
In-place lease
Amortizable Intangible Assets
Finite-lived intangible assets, gross	263,123	255,510
Less: accumulated amortization	(54,165)	(43,090)
Finite-lived intangible assets, net	208,958	212,420
Below-market ground lease
Amortizable Intangible Assets
Finite-lived intangible assets, gross	21,842	20,894
Less: accumulated amortization	(445)	(325)
Finite-lived intangible assets, net	21,397	20,569
Above-market rent
Amortizable Intangible Assets
Finite-lived intangible assets, gross	12,509	12,174
Less: accumulated amortization	(1,641)	(1,322)
Finite-lived intangible assets, net	$ 10,868	$ 10,852