Agreements and Transactions with Related Parties (Details 1) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Amounts Included in the Consolidated Statements of Operations
Asset management fees	$ 3,470	$ 2,553
Available Cash Distributions	2,507	1,847
Acquisition fees	2,158	5,682
Personnel and overhead reimbursements	1,975	1,848
Related party fees included in operating expenses	10,110	11,930
Other Transaction Fees Incurred
Advisor fee for purchase of membership interest (Note 11)	527	0
Capitalized loan refinancing fee	500	0
Other transaction fees incurred	$ 1,027	$ 0