Earnings Per Share of the Company (Details) (Tanger Factory Outlet Centers, Inc [Member], USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended	3 Months Ended
	Jan. 31, 2014	Mar. 31, 2015	Mar. 31, 2014
Tanger Factory Outlet Centers, Inc [Member]
Numerator
Net income attributable to Tanger Factory Outlet Centers, Inc.		$ 34,512	$ 14,616
Less allocation of earnings to participating securities		(408)	(429)
Net income available to common shareholders/unitholders of Tanger Factory Outlet Centers, Inc./the Operating Partnership		$ 34,104	$ 14,187
Denominator
Basic weighted average common shares (in shares)		94,536,000	93,580,000
Effect of notional units (in shares)		82,000	0
Effect of outstanding options and restricted common shares (in shares)		79,000	69,000
Diluted weighted average common shares (in shares)		94,697,000	93,649,000
Basic earnings per common share:
Net income, basic (in dollars per share)		$ 0.36	$ 0.15
Diluted earnings per common share:
Net income, diluted (in dollars per share)		$ 0.36	$ 0.15
Number of notional units converted to restricted common shares	933,769
Antidilutive securities excluded from computation of earnings per share (in shares)		252,000	279,000