Investment in Unconsolidated Real Estate Ventures - Summary of Results of Operations of Real Estate Ventures with Interests (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Schedule Of Equity Method Investments [Line Items]
Company’s share of income (loss) (Company’s basis)		$ (1,666)	$ (873)	$ (2,069)	$ (742)
Unconsolidated Real Estate Ventures [Member]
Schedule Of Equity Method Investments [Line Items]
Revenue		53,406	43,239	99,931	89,348
Operating expenses		(27,088)	(19,132)	(53,755)	(37,665)
Interest expense, net		(10,928)	(10,136)	(19,917)	(19,982)
Depreciation and amortization		(20,242)	(17,412)	(40,403)	(36,536)
Net loss	[1]	(4,852)	(3,441)	(14,144)	(4,835)
Company’s share of income (loss) (Company’s basis)		$ (1,666)	$ (873)	$ (2,069)	$ (742)

[1] The six-month period ended June 30, 2016 amount includes $7.1 million of acquisition deal costs related to the formation of the MAP Venture during the three-month period ended March 31, 2016.