Earnings Per Share of the Company (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Numerator:
Net income attributable to Tanger Inc.	$ 22,413	$ 23,541
Less allocation of earnings to participating securities	(231)	(199)
Net income (loss) available to common shareholders/unitholders	$ 22,182	$ 23,342
Denominator:
Basic weighted average common shares (in shares)	108,369,000	104,088,000
Effect of notional shares (in shares)	731,000	693,000
Effect of outstanding options (in shares)	923,000	741,000
Diluted weighted average common shares (in shares)	110,023,000	105,522,000
Basic earnings per common share/unit:
Net income (loss) (in dollars per share)	$ 0.20	$ 0.22
Diluted earnings per common share:
Net income (loss) (in dollars per share)	$ 0.20	$ 0.22
Notional Units
Diluted earnings per common share:
Anti-dilutive options excluded (in shares)	122,375	0
Options
Diluted earnings per common share:
Anti-dilutive options excluded (in shares)	0