Related Party Transactions and Arrangements (Schedule of Amount Contractually Due and Forgiven in Connection With Operation Related Services) (Details) (USD $)			3 Months Ended						3 Months Ended																									3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014 Incurred [Member] Operation Fees and Reimbursements [Member]	Mar. 31, 2013 Incurred [Member] Operation Fees and Reimbursements [Member]	Mar. 31, 2014 Forgiven [Member] Operation Fees and Reimbursements [Member]	Mar. 31, 2013 Forgiven [Member] Operation Fees and Reimbursements [Member]	Mar. 31, 2014 Payable [Member] Operation Fees and Reimbursements [Member]	Dec. 31, 2013 Payable [Member] Operation Fees and Reimbursements [Member]	Mar. 31, 2014 American Realty Capital Advisors III LLC [Member] Advisor [Member]	Mar. 31, 2014 Nonrecurring Fees [Member] Incurred [Member] Acquisition and Related Expenses [Member]	Mar. 31, 2013 Nonrecurring Fees [Member] Incurred [Member] Acquisition and Related Expenses [Member]	Mar. 31, 2014 Nonrecurring Fees [Member] Incurred [Member] Financing fees and related cost reimbursements [Member]	Mar. 31, 2013 Nonrecurring Fees [Member] Incurred [Member] Financing fees and related cost reimbursements [Member]	Mar. 31, 2014 Nonrecurring Fees [Member] Incurred [Member] Other Expense Reimbursements [Member]	Mar. 31, 2013 Nonrecurring Fees [Member] Incurred [Member] Other Expense Reimbursements [Member]	Mar. 31, 2014 Nonrecurring Fees [Member] Incurred [Member] Transaction Fee [Member]	Mar. 31, 2013 Nonrecurring Fees [Member] Incurred [Member] Transaction Fee [Member]	Mar. 31, 2014 Nonrecurring Fees [Member] Forgiven [Member] Acquisition and Related Expenses [Member]	Mar. 31, 2013 Nonrecurring Fees [Member] Forgiven [Member] Acquisition and Related Expenses [Member]	Mar. 31, 2014 Nonrecurring Fees [Member] Forgiven [Member] Financing fees and related cost reimbursements [Member]	Mar. 31, 2013 Nonrecurring Fees [Member] Forgiven [Member] Financing fees and related cost reimbursements [Member]	Mar. 31, 2014 Nonrecurring Fees [Member] Forgiven [Member] Other Expense Reimbursements [Member]	Mar. 31, 2013 Nonrecurring Fees [Member] Forgiven [Member] Other Expense Reimbursements [Member]	Mar. 31, 2014 Nonrecurring Fees [Member] Forgiven [Member] Transaction Fee [Member]	Mar. 31, 2013 Nonrecurring Fees [Member] Forgiven [Member] Transaction Fee [Member]	Mar. 31, 2014 Nonrecurring Fees [Member] Payable [Member] Acquisition and Related Expenses [Member]	Dec. 31, 2013 Nonrecurring Fees [Member] Payable [Member] Acquisition and Related Expenses [Member]	Mar. 31, 2014 Nonrecurring Fees [Member] Payable [Member] Financing fees and related cost reimbursements [Member]	Dec. 31, 2013 Nonrecurring Fees [Member] Payable [Member] Financing fees and related cost reimbursements [Member]	Mar. 31, 2014 Nonrecurring Fees [Member] Payable [Member] Other Expense Reimbursements [Member]	Dec. 31, 2013 Nonrecurring Fees [Member] Payable [Member] Other Expense Reimbursements [Member]	Mar. 31, 2014 Nonrecurring Fees [Member] Payable [Member] Transaction Fee [Member]	Dec. 31, 2013 Nonrecurring Fees [Member] Payable [Member] Transaction Fee [Member]	Mar. 31, 2014 Recurring Fees [Member] Incurred [Member] Base Management Fees [Member]	Mar. 31, 2013 Recurring Fees [Member] Incurred [Member] Base Management Fees [Member]	Mar. 31, 2014 Recurring Fees [Member] Incurred [Member] Incentive Fees [Member]	Mar. 31, 2013 Recurring Fees [Member] Incurred [Member] Incentive Fees [Member]	Mar. 31, 2014 Recurring Fees [Member] Incurred [Member] Strategic Advisory Fees [Member]	Mar. 31, 2013 Recurring Fees [Member] Incurred [Member] Strategic Advisory Fees [Member]	Mar. 31, 2014 Recurring Fees [Member] Incurred [Member] Property Management Fees [Member]	Mar. 31, 2013 Recurring Fees [Member] Incurred [Member] Property Management Fees [Member]	Mar. 31, 2014 Recurring Fees [Member] Incurred [Member] Distributions On Class B Units [Member]	Mar. 31, 2013 Recurring Fees [Member] Incurred [Member] Distributions On Class B Units [Member]	Mar. 31, 2014 Recurring Fees [Member] Forgiven [Member] Base Management Fees [Member]	Mar. 31, 2013 Recurring Fees [Member] Forgiven [Member] Base Management Fees [Member]	Mar. 31, 2014 Recurring Fees [Member] Forgiven [Member] Incentive Fees [Member]	Mar. 31, 2013 Recurring Fees [Member] Forgiven [Member] Incentive Fees [Member]	Mar. 31, 2014 Recurring Fees [Member] Forgiven [Member] Strategic Advisory Fees [Member]	Mar. 31, 2013 Recurring Fees [Member] Forgiven [Member] Strategic Advisory Fees [Member]	Mar. 31, 2014 Recurring Fees [Member] Forgiven [Member] Property Management Fees [Member]	Mar. 31, 2013 Recurring Fees [Member] Forgiven [Member] Property Management Fees [Member]	Mar. 31, 2014 Recurring Fees [Member] Forgiven [Member] Distributions On Class B Units [Member]	Mar. 31, 2013 Recurring Fees [Member] Forgiven [Member] Distributions On Class B Units [Member]	Mar. 31, 2014 Recurring Fees [Member] Payable [Member] Base Management Fees [Member]	Dec. 31, 2013 Recurring Fees [Member] Payable [Member] Base Management Fees [Member]	Mar. 31, 2014 Recurring Fees [Member] Payable [Member] Incentive Fees [Member]	Dec. 31, 2013 Recurring Fees [Member] Payable [Member] Incentive Fees [Member]	Mar. 31, 2014 Recurring Fees [Member] Payable [Member] Strategic Advisory Fees [Member]	Dec. 31, 2013 Recurring Fees [Member] Payable [Member] Strategic Advisory Fees [Member]	Mar. 31, 2014 Recurring Fees [Member] Payable [Member] Property Management Fees [Member]	Dec. 31, 2013 Recurring Fees [Member] Payable [Member] Property Management Fees [Member]	Mar. 31, 2014 Recurring Fees [Member] Payable [Member] Distributions On Class B Units [Member]	Dec. 31, 2013 Recurring Fees [Member] Payable [Member] Distributions On Class B Units [Member]
Related Party Transaction [Line Items]
Related party operation fees and reimbursements			$ 344,000	$ 18,983,000	$ 0	$ 370,000			$ 2,300,000	$ 0	$ 7,054,000	$ 0	$ 7,500,000	$ 0	$ 54,000	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0									$ 0	$ 2,654,000	$ 344,000	$ 799,000	$ 0	$ 920,000	$ 0	$ 0	$ 0	$ 2,000	$ 0	$ 370,000	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0
Due to affiliates	$ 217,000	$ 0					$ 0	$ 9,383,000																		$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 3,455,000																					$ 0	$ 5,654,000	$ 0	$ 57,000	$ 0	$ 0	$ 0	$ 217,000	$ 0	$ 0