Fair Value Measurements (Debt) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Recorded value of debt	$ 1,426,832	$ 1,428,494
Tanger Properties Limited Partnership
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total fair value of debt	1,257,283	1,268,362
Recorded value of debt	1,426,832	1,428,494
Tanger Properties Limited Partnership | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total fair value of debt	0	0
Tanger Properties Limited Partnership | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total fair value of debt	867,458	876,542
Tanger Properties Limited Partnership | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total fair value of debt	$ 389,825	$ 391,820