Shareholders' Equity of the Company (Details)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Tanger Factory Outlet Centers, Inc [Member]
Entity Information [Line Items]
Common shares issued in exchange for Operating Partnership units (in shares)	66,606	67,428	6,730,028
Convertible units, shares issued upon conversion into common shares	1
Class A Limited Partnership Units [Member] | Tanger Properties Limited Partnership [Member]
Entity Information [Line Items]
Common shares issued in exchange for Operating Partnership units (in shares)	(66,606)	(67,428)	(6,730,028)
Number of operating partnership units owned by family limited partners	5,078,406	5,145,012