Debt of the Operating Partnership (Debt Maturities) (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Schedule of Maturities of Debt [Line Items]
Total debt	$ 1,613,012	$ 1,423,759
Tanger Properties Limited Partnership
Schedule of Maturities of Debt [Line Items]
For the remainder of 2025	385
2026	355,705
2027 (1)	740,000
2028 (1)	60,000
2029	0
Thereafter	461,700
Subtotal	1,617,790	1,433,906
Net discount and debt origination costs	(4,778)
Total debt	$ 1,613,012	$ 1,423,759