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Fair Value Measurements (Debt) (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Recorded value of debt | $ 1,396,015 | $ 1,397,076
Tanger Properties Limited Partnership |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total fair value of debt | 1,272,156 | 1,445,337
Recorded value of debt | 1,396,015 | 1,397,076
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 | 911,714 | 1,079,234
Tanger Properties Limited Partnership | Level 3 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total fair value of debt | $ 360,442 | $ 366,103

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