Deferred Financing and Leasing Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Amortization of deferred financing costs	$ 4,395	$ 4,811	$ 4,084
Amortization of Deferred Leasing Costs and Intangible Leases, Acquired-in-place	44,200	51,300	$ 39,200
Finite-Lived Intangible Assets, Gross [Abstract]
Deferred financing costs, gross	11,917	11,917
Deferred leasing costs, gross	229,798	215,714
Intangible - market rent, gross	20,178	18,082
Intangible - origination value, gross	106,014	103,512
Finite-Lived Intangible Assets, Gross	367,907	349,225
Finite-Lived Intangible Assets, Accumulated Amortization [Abstract]
Deferred financing costs, accumulated amortization	(8,713)	(7,278)
Deferred leasing costs, accumulated amortization	(97,840)	(100,702)
Intangible - market rent, accumulated amortization	(10,358)	(8,266)
Intangible - origination value, accumulated amortization	(58,887)	(40,215)
Finite-Lived Intangible Assets, Accumulated Amortization	(175,798)	(156,461)
Deferred financing and leasing costs, net	$ 192,109	$ 192,764