Related Party Transactions and Arrangements (Schedule of Amount Contractually Due and Forgiven in Connection With Operation Related Services) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2012
Paid [Member] | Total operation fees and reimbursements [Member]
Related Party Transaction [Line Items]
Related party operation fees and reimbursements	$ 1,294	$ 1,502
Paid [Member] | One-time Fees [Member] | Acquisition fees and related expenses [Member]
Related Party Transaction [Line Items]
Related party operation fees and reimbursements	1,118	1,262
Paid [Member] | One-time Fees [Member] | Financing fees and related cost reimbursements [Member]
Related Party Transaction [Line Items]
Related party operation fees and reimbursements	165	214
Paid [Member] | One-time Fees [Member] | Other expense reimbursements [Member]
Related Party Transaction [Line Items]
Related party operation fees and reimbursements	11	26
Paid [Member] | On-going Fees [Member] | Base management fees [Member]
Related Party Transaction [Line Items]
Related party operation fees and reimbursements	0	0
Paid [Member] | On-going Fees [Member] | Incentive fees [Member]
Related Party Transaction [Line Items]
Related party operation fees and reimbursements	0	0
Forgiven [Member] | Total operation fees and reimbursements [Member]
Related Party Transaction [Line Items]
Related party operation fees and reimbursements	204	386
Forgiven [Member] | One-time Fees [Member] | Acquisition fees and related expenses [Member]
Related Party Transaction [Line Items]
Related party operation fees and reimbursements	0	0
Forgiven [Member] | One-time Fees [Member] | Financing fees and related cost reimbursements [Member]
Related Party Transaction [Line Items]
Related party operation fees and reimbursements	0	0
Forgiven [Member] | One-time Fees [Member] | Other expense reimbursements [Member]
Related Party Transaction [Line Items]
Related party operation fees and reimbursements	0	0
Forgiven [Member] | On-going Fees [Member] | Base management fees [Member]
Related Party Transaction [Line Items]
Related party operation fees and reimbursements	204	386
Forgiven [Member] | On-going Fees [Member] | Incentive fees [Member]
Related Party Transaction [Line Items]
Related party operation fees and reimbursements	$ 0	$ 0