Organization (Details)	3 Months Ended
	Mar. 31, 2013
General Partner [Member] | ARC Properties Operating Partnership, L.P. [Member]
Operations [Line Items]
General partner ownership interest in OP, Percent	94.10%
Affiliated Entity [Member] | Contributor [Member] | ARC Real Estate Partners, LLC [Member]
Operations [Line Items]
Limited partner ownership interest in OP, Percent	5.10%
Unaffiliated Third Party [Member]
Operations [Line Items]
Limited partner ownership interest in OP, Percent	0.80%
Long Term [Member]
Operations [Line Items]
Real Estate Portfolio, Property Concentration, Percentage	70.00%
Short Term [Member] [Member]
Operations [Line Items]
Real Estate Portfolio, Property Concentration, Percentage	30.00%
Minimum [Member]
Operations [Line Items]
Real Estate Property, Weighted Average Remaining Lease Term	10 years
Maximum [Member]
Operations [Line Items]
Real Estate Property, Weighted Average Remaining Lease Term	12 years