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Equity-Based Compensation - Outperformance Plan Narrative (Details) - Tanger Factory Outlet Centers, Inc. [Member] - 2018 OPP [Member] - Performance Shares [Member] | 12 Months Ended
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Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Share-based Award Measurement Period | 3 years
Year one [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Award Vesting Rights, Percentage | 50.00%
One year after measurement period [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Award Vesting Rights, Percentage | 50.00%

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- Definition Percentage of vesting of share-based compensation awards. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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