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Partners' Equity of the Operating Partnership (Details) - Tanger Properties Limited Partnership [Member] - shares | 9 Months Ended
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Sep. 30, 2018 | Sep. 30, 2017
General and Limited Partners' Capital Account, Units [Roll Forward] |  |
General partner (in units) | 1,000,000 |
Grant of restricted common shares awards, net of forfeitures (in units) | 355,184 | 411,968
Repurchased of units (in units) | (919,249) | (1,911,585)
Units issued upon exercise of options (in units) |  | 1,800
Units withheld for employee income taxes (in units) | (89,437) | (69,886)
General partner (in units) | 1,000,000 |
General partner [Member] |  |
General and Limited Partners' Capital Account, Units [Roll Forward] |  |
General partner (in units) | 1,000,000 | 1,000,000
Grant of restricted common shares awards, net of forfeitures (in units) | 0 | 0
Repurchased of units (in units) | 0 | 0
Units issued upon exercise of options (in units) |  | 0
Units withheld for employee income taxes (in units) | 0 | 0
General partner (in units) | 1,000,000 | 1,000,000
Class A Limited Partnership Units [Member] |  |
General and Limited Partners' Capital Account, Units [Roll Forward] |  |
Limited partners (in units) | 4,995,433 | 5,027,781
Grant of restricted common shares awards, net of forfeitures (in units) | 0 | 0
Repurchased of units (in units) | 0 | 0
Units issued upon exercise of options (in units) |  | 0
Units withheld for employee income taxes (in units) | 0 | 0
Limited partners (in units) | 4,995,433 | 5,027,781
Class B Limited Partnership Units [Member] |  |
General and Limited Partners' Capital Account, Units [Roll Forward] |  |
Limited partners (in units) | 93,560,536 | 95,095,891
Grant of restricted common shares awards, net of forfeitures (in units) | 355,184 | 411,968
Repurchased of units (in units) | (919,249) | (1,911,585)
Units issued upon exercise of options (in units) |  | 1,800
Units withheld for employee income taxes (in units) | (89,437) | (69,886)
Limited partners (in units) | 92,907,034 | 93,528,188
Limited partners [Member] |  |
General and Limited Partners' Capital Account, Units [Roll Forward] |  |
Limited partners (in units) | 98,555,969 | 100,123,672
Grant of restricted common shares awards, net of forfeitures (in units) | 355,184 | 411,968
Repurchased of units (in units) | (919,249) | (1,911,585)
Units issued upon exercise of options (in units) |  | 1,800
Units withheld for employee income taxes (in units) | (89,437) | (69,886)
Limited partners (in units) | 97,902,467 | 98,555,969

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- Definition The number of limited partner units outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 5 -Subparagraph (SAB Topic 4.F) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055 + Details
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- Definition For net-share settlement of share-based awards when the employer settles employees' income tax withholding obligations, this element represents the number of shares the employees use to repay the employer. + References No definition available. + Details
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- Definition Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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