Earnings Per Share of the Company (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Numerator:
Net income attributable to Tanger Inc.	$ 32,027	$ 24,856	$ 81,314	$ 72,109
Less allocation of earnings to participating securities	(224)	(232)	(651)	(692)
Net income (loss) available to common shareholders/unitholders	$ 31,803	$ 24,624	$ 80,663	$ 71,417
Denominator:
Basic weighted average common shares (in shares)	113,005,000	108,972,000	112,689,000	108,675,000
Effect of dilutive equity awards (in shares)	1,564,000	1,732,000	1,539,000	1,671,000
Diluted weighted average common shares (in shares)	114,569,000	110,704,000	114,228,000	110,346,000
Basic earnings per common share/unit:
Net income (loss) (in dollars per share)	$ 0.28	$ 0.23	$ 0.72	$ 0.66
Diluted earnings per common share:
Net income (loss) (in dollars per share)	$ 0.28	$ 0.22	$ 0.71	$ 0.65
Notional Units
Diluted earnings per common share:
Anti-dilutive options excluded (in shares)	99,000	120,000	99,000	120,000
Options
Diluted earnings per common share:
Anti-dilutive options excluded (in shares)	0		0