Fair Value Measurements (Debt) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Recorded value of debt	$ 1,471,619	$ 1,439,203
Tanger Properties Limited Partnership
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total fair value of debt	1,372,971	1,319,700
Recorded value of debt	1,471,619	1,439,203
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	939,591	918,091
Tanger Properties Limited Partnership | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total fair value of debt	$ 433,380	$ 401,609