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
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Related Party Transaction [Line Items]
Expenses incurred	$ 3,767	$ 3,328
Expenses waived	485	536
Payable (Receivable)	200		$ 92
Asset management fees
Related Party Transaction [Line Items]
Expenses incurred	3,074	3,144
Expenses waived	0	0
Payable (Receivable)	(1)		(7)
Transfer agent and other professional fees
Related Party Transaction [Line Items]
Expenses incurred	693	184
Expenses waived	0	0
Payable (Receivable)	201		99
Property management fees
Related Party Transaction [Line Items]
Expenses incurred	0	0
Expenses waived	485	$ 536
Payable (Receivable)	$ 0		$ 0