Earnings Per Unit of the Operating Partnership (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Denominator
Effect of outstanding options and restricted common shares (in shares)	1,555,000	1,816,000	1,850,000
Tanger Properties Limited Partnership [Member]
Numerator
Net income (loss) attributable to Tanger Factory Outlet Centers, Inc.	$ 119,501	$ 102,840	$ 103,634
Less allocation of earnings to participating securities	(872)	(920)	(1,186)
Net income (loss) available to common shareholders/unitholders of Tanger Factory Outlet Centers, Inc./the Operating Partnership	$ 118,629	$ 101,920	$ 102,448
Denominator
Basic weighted average common shares (in shares)	117,838,000	113,971,000	109,416,000
Diluted weighted average common shares (in shares)	119,393,000	115,787,000	111,266,000
Basic earnings per common unit:
Net income (loss) , basic (in dollars per share)	$ 1.01	$ 0.89	$ 0.94
Diluted earnings per common unit:
Net income (loss), diluted (in dollars per share)	$ 0.99	$ 0.88	$ 0.92
Antidilutive notional units excluded from the computation of earnings per share (in units)	0