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Equity-Based Compensation - Restricted Common Shares Narrative (Details) (Tanger Factory Outlet Centers, Inc [Member], USD $) | 1 Months Ended | 12 Months Ended | 1 Months Ended | 0 Months Ended
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Jan. 31, 2014 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Feb. 29, 2012 | Feb. 28, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Granted | 933,769us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod | 1,307,729us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod |  |  |  |
Award Vesting Period |  | 1 year |  |  |  |
Restricted Shares [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Granted |  | 373,960us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 349,373us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 346,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Independent Director's Shares [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Award Vesting Period |  | 3 years |  |  |  |
Senior Executive Officer's Shares [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Award Vesting Period |  | 5 years |  |  |  |
Chief Executive Officer's Shares [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based compensation arrangement award holding period |  | 3 years |  |  |  |
Restricted Shares CEO [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of Restricted Common Shares Granted to Company CEO |  |  |  |  | 225,000skt_NumberOfRestrictedCommonSharesGrantedToCompanyCeo / us-gaap_AwardTypeAxis = skt_RestrictedSharesCeoMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Grant Date Fair Value |  |  |  |  | $ 25.44skt_ShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantDateFairValue / us-gaap_AwardTypeAxis = skt_RestrictedSharesCeoMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Fully Vested [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of Restricted Common Shares Granted to Company CEO |  |  |  |  |  | 45,000skt_NumberOfRestrictedCommonSharesGrantedToCompanyCeo / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_VestingTypeAxis = skt_FullyVestedMember
Service Condition [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of Restricted Common Shares Granted to Company CEO |  |  |  |  |  | 90,000skt_NumberOfRestrictedCommonSharesGrantedToCompanyCeo / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_VestingTypeAxis = skt_ServiceConditionMember
Vesting Period of Restricted Shares Granted to Company CEO |  |  |  |  |  | 5 years
Service and Performance Conditions [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of Restricted Common Shares Granted to Company CEO |  |  |  |  |  | 90,000skt_NumberOfRestrictedCommonSharesGrantedToCompanyCeo / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_VestingTypeAxis = skt_ServiceAndPerformanceConditionsMember
Vesting Period of Restricted Shares Granted to Company CEO |  |  |  |  |  | 5 years

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- Definition Number of Restricted Common Shares Granted to Company CEO + References No definition available. + Details
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Data Type: | xbrli:sharesItemType
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Period Type: | duration

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- Definition Share-based compensation arrangement award holding period + References No definition available. + Details
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- Definition Share-based Payment Award, Equity Instruments, Other Than Options, Grant Date Fair Value + References No definition available. + Details
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Namespace Prefix: | skt_
Data Type: | num:perShareItemType
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- Definition Vesting Period of Restricted Shares Granted to Company CEO + References No definition available. + Details
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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + 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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Namespace Prefix: | us-gaap_
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Balance Type: | na
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- Details
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- Details
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- Details
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- Details
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