Equity-Based Compensation - Outperformance Plan Narrative (Details) - Tanger Factory Outlet Centers, Inc. [Member] - Performance Shares [Member] |
12 Months Ended |
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Dec. 31, 2020 | |
| 2020 OPP [Member] | |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Share-based Award Measurement Period | 3 years |
| Year one [Member] | 2019 OPP [Member] | |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Award Vesting Rights, Percentage | 50.00% |
| One year after measurement period [Member] | 2019 OPP [Member] | |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Award Vesting Rights, Percentage | 50.00% |
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- Definition Share-based Award Measurement Period No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Percentage of vesting of award under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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