Deferred Costs - Deferred Costs (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Deferred Costs [Abstract]
Acquired lease intangible assets	$ 128,656	$ 138,796
Deferred leasing costs and other	60,802	55,332
Deferred Costs Gross	189,458	194,128
Less—accumulated amortization	(52,257)	(45,854)
Total	$ 137,201	$ 148,274