Related Party Transactions and Arrangements (Fees Paid in Connection With the Operations of the Company, Incurred, Waived and Payable) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Related Party Transaction [Line Items]
Expenses incurred	$ 3,708	$ 3,371	$ 7,474	$ 6,699
Expenses waived	508	683	994	1,219
Payable (Receivable)	87		87		$ 92
Asset management fees
Related Party Transaction [Line Items]
Expenses incurred	3,050	3,101	6,124	6,245
Expenses waived	0	0	0	0
Payable (Receivable)	0		0		(7)
Transfer agent and other professional fees
Related Party Transaction [Line Items]
Expenses incurred	658	270	1,350	454
Expenses waived	0	0	0	0
Payable (Receivable)	87		87		99
Property management fees
Related Party Transaction [Line Items]
Expenses incurred	0	0	0	0
Expenses waived	508	$ 683	994	$ 1,219
Payable (Receivable)	$ 0		$ 0		$ 0