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CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (Parenthetical) (USD $) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Tanger Factory Outlet Centers, Inc [Member] |  |  |
Common shares/units issued upon exercise of options, in shares/units | 47,000us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 44,500us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 37,700us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Issuance of limited partner units |  | 450,576skt_IssuanceOfLimitedPartnerUnits / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Issuance of restricted shares, net of forfeitures (in shares) | 1,302,729us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 332,373us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 566,000us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Exchange of Operating Partnership units for common shares (in units) | 66,606us-gaap_PartnersCapitalAccountUnitsConverted / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 67,428us-gaap_PartnersCapitalAccountUnitsConverted / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 6,730,028us-gaap_PartnersCapitalAccountUnitsConverted / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Common shares issued in exchange for Operating Partnership units (in shares) | 66,606us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 67,428us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 6,730,028us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Common dividends per share (in dollars per share) | $ 0.9450us-gaap_CommonStockDividendsPerShareCashPaid / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | $ 0.8850us-gaap_CommonStockDividendsPerShareCashPaid / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | $ 0.8300us-gaap_CommonStockDividendsPerShareCashPaid / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Shares Paid for Tax Withholding for Share Based Compensation | 412,239us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Tanger Properties Limited Partnership [Member] |  |  |
Common shares/units issued upon exercise of options, in shares/units | 47,000us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 44,500us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 37,700us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Issuance of limited partner units |  | 450,576skt_IssuanceOfLimitedPartnerUnits / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |
Issuance of restricted shares, net of forfeitures (in shares) | 1,302,729us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 332,373us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 566,000us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Common distributions (in dollars per share) | 0.9450skt_CommonDistributions / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0.8850skt_CommonDistributions / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0.8300skt_CommonDistributions / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Shares Paid for Tax Withholding for Share Based Compensation | 412,239us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |

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- Definition Aggregate dividends paid during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -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 + Details
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- Definition The number of units converted into shares of each class of partners' capital account. Units represent shares of ownership of the general, limited, and preferred partners. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 16 -Subparagraph a, b -Article 6 + 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 The number of shares issued during the period upon the conversion of units. An example of a convertible unit is an umbrella partnership real estate investment trust unit (UPREIT unit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28,29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 + 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://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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- Definition Number of share options (or share units) exercised during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28,29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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