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Equity-Based Compensation - Multi Year Performance Plan Narrative (Details) (Tanger Factory Outlet Centers, Inc [Member], USD $) In Millions, except Share data, unless otherwise specified | 1 Months Ended | 3 Months Ended | 12 Months Ended | 48 Months Ended
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Jan. 31, 2014 | Mar. 31, 2010 | Dec. 31, 2014 | Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Notional Units, Grants in Period |  | 392,000skt_NotionalUnitsGrantsInPeriod |  |
Share-based Compensation, performance period |  |  |  | 4 years
Maximum Potential Share-Based Compensation |  |  |  | $ 32.2skt_MaximumPotentialShareBasedCompensation
Share-based Award Measurement Period |  |  |  | 4 years
Granted | 933,769us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod |  | 1,307,729us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod |
Cumulative Dividends |  |  |  | $ 3.8us-gaap_CumulativeDividends
Price appreciation minimum [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Notional Units Conversion Ratio |  |  |  | 1skt_NotionalUnitsConversionRatio / skt_AppreciationlevelAxis = skt_PriceappreciationminimumMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Price appreciation middle [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Notional Units Conversion Ratio |  |  |  | 2skt_NotionalUnitsConversionRatio / skt_AppreciationlevelAxis = skt_PriceappreciationmiddleMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Price appreciation maximum [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Notional Units Conversion Ratio |  |  |  | 3skt_NotionalUnitsConversionRatio / skt_AppreciationlevelAxis = skt_PriceappreciationmaximumMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember

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- Definition Maximum Potential Share-Based Compensation + References No definition available. + Details
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- Definition Notional Units Conversion Ratio - The number of common shares that each notional unit will convert into upon meeting or exceeding the aggregate share price appreciation threshholds. + References No definition available. + Details
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- Definition Notional Units, Grants in Period + References No definition available. + Details
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- Definition Share-based Award Measurement Period + References No definition available. + Details
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- Definition Share-based Compensation, performance period + References No definition available. + Details
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- Definition Amount of cumulative cash dividends distributed to shareholders. + References No definition available. + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Details
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- Details
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- Details
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- Details
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