Related Party Transactions and Arrangements (Schedule of Selling Commissions and Dealer Manager Fees) (Details) (USD $)	3 Months Ended		6 Months Ended			12 Months Ended
	Jun. 30, 2013 Dealer Manager [Member] Realty Capital Securities, LLC [Member] Sales Commissions and Fees [Member] (Deprecated 2013-01-31)	Jun. 30, 2012 Dealer Manager [Member] Realty Capital Securities, LLC [Member] Sales Commissions and Fees [Member] (Deprecated 2013-01-31)	Jun. 30, 2013 Dealer Manager [Member] Realty Capital Securities, LLC [Member] Sales Commissions and Fees [Member] (Deprecated 2013-01-31)	Jun. 30, 2012 Dealer Manager [Member] Realty Capital Securities, LLC [Member] Sales Commissions and Fees [Member] (Deprecated 2013-01-31)	Jun. 30, 2013 Payable [Member] Advisor and Dealer Manager [Member] Fees and Expense Reimbursement, Stock Offering [Member]	Dec. 31, 2012 Payable [Member] Advisor and Dealer Manager [Member] American Realty Capital Properties Advisors, LLC and Realty Capital Securities, LLC [Member] [Member] Fees and Expense Reimbursement, Stock Offering [Member]
Schedule of Selleing Commission and Dealer Manager Fees [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party	$ 0	$ 57,914,000	$ 0	$ 79,791,000	$ 0	$ 0