Debt of the Operating Partnership (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Unsecured lines of credit | Debt | Unsecured lines of credit
Debt Instrument [Line Items]
Maximum amount of unconsolidated joint venture debt guaranteed by the Company	$ 46,000	$ 13,000
Unsecured term loan | Debt | Unsecured term loan
Debt Instrument [Line Items]
Maximum amount of unconsolidated joint venture debt guaranteed by the Company	325,000	325,000
Tanger Properties Limited Partnership
Debt Instrument [Line Items]
Unamortized debt issuance costs	12,200	12,800
Tanger Properties Limited Partnership | Mortgages
Debt Instrument [Line Items]
Net book value of collateral for mortgages payable	139,200
Tanger Properties Limited Partnership | Unsecured lines of credit
Debt Instrument [Line Items]
Maximum borrowings of liquidity line	20,000
Maximum borrowings of syndicated line	500,000
Maximum borrowings of syndicated line if accordion feature is utilized	$ 1,200,000
Percentage of funds from operations allowed on a cumulative basis to pay dividends	95.00%
Unamortized debt issuance costs	$ 1,800	$ 2,100
Tanger Properties Limited Partnership | Unsecured lines of credit | Debt
Debt Instrument [Line Items]
Line of credit borrowing capacity	$ 520,000