Accounts Payable and Other Liabilities (Schedule of Accounts Payable and Other Liabilities) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Payables and Accruals [Abstract]
Accounts payable and accrued expenses	$ 14,421	$ 6,283
Accrued interest expense	2,938	2,905
Accrued property taxes	3,705	1,247
Contingent consideration obligation	5,585	5,340
Distributions payable to stockholders	10,510	10,776
Tenant deposits	1,039	1,039
Deferred rental income	5,429	5,226
Derivative liabilities	9,049	2,641
Accounts payable and other liabilities	$ 52,676	$ 35,457