Earnings Per Share of the Company (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Numerator:
Net income attributable to Tanger Inc.	$ 28,261	$ 19,201
Less allocation of earnings to participating securities	(210)	(202)
Net income (loss) available to common shareholders/unitholders	$ 28,051	$ 18,999
Denominator:
Basic weighted average common shares (in shares)	114,238,000	112,396,000
Effect of dilutive equity awards (in shares)	1,216,000	1,557,000
Diluted weighted average common shares (in shares)	115,454,000	113,953,000
Basic earnings per common share/unit:
Net income (loss) (in dollars per share)	$ 0.25	$ 0.17
Diluted earnings per common share:
Net income (loss) (in dollars per share)	$ 0.24	$ 0.17
Notional Units
Diluted earnings per common share:
Anti-dilutive options excluded (in shares)	472,000	99,000
Options
Diluted earnings per common share:
Anti-dilutive options excluded (in shares)	0