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Equity-Based Compensation - Outperformance Plan Narrative (Details) (Tanger Factory Outlet Centers, Inc [Member], USD $) In Millions, except Share data, unless otherwise specified | 12 Months Ended | 48 Months Ended | 1 Months Ended |  |
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2013 | Feb. 28, 2014 | Feb. 28, 2013 | Dec. 31, 2016 | Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Share-based Award Measurement Period |  |  |  | 4 years |  |  |  |
Maximum Potential Share-Based Compensation |  | $ 32.2skt_MaximumPotentialShareBasedCompensation |  | $ 32.2skt_MaximumPotentialShareBasedCompensation |  |  |  |
Shares Paid for Tax Withholding for Share Based Compensation | 412,239us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation | 0us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation | 0us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation |  |  |  |  |
Performance Shares [Member] |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Number Of Shares That May Be Earned |  |  |  |  | 329,700skt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateNumberOfSharesThatMayBeEarned / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 315,150skt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateNumberOfSharesThatMayBeEarned / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Share-based Award Measurement Period |  |  |  |  | 3 years | 3 years |  |
Percent of share price appreciation |  |  |  |  | 35.00%skt_Percentofsharepriceappreciation / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 35.00%skt_Percentofsharepriceappreciation / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Threshold Percentage for Performance Target |  |  |  |  | 70.00%skt_ThresholdPercentageForPerformanceTarget / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 70.00%skt_ThresholdPercentageForPerformanceTarget / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Seventy percent of the performance shares [Member] | Performance Shares [Member] |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Percent of Total Shares Available to be Awarded |  |  |  |  | 70.00%skt_PercentOfTotalSharesAvailableToBeAwarded / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_SeventyPercentPerformanceSharesMember | 70.00%skt_PercentOfTotalSharesAvailableToBeAwarded / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_SeventyPercentPerformanceSharesMember |  |
Seventy percent of the performance shares [Member] | Price appreciation minimum [Member] | Performance Shares [Member] |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Percent of share price appreciation |  |  |  |  | 25.00%skt_Percentofsharepriceappreciation / skt_AppreciationlevelAxis = skt_PriceappreciationminimumMember / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_SeventyPercentPerformanceSharesMember | 25.00%skt_Percentofsharepriceappreciation / skt_AppreciationlevelAxis = skt_PriceappreciationminimumMember / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_SeventyPercentPerformanceSharesMember |  |
Percent of Shares Earned if Threshold Met |  |  |  |  | 33.33%skt_PercentOfSharesEarnedIfThresholdMet / skt_AppreciationlevelAxis = skt_PriceappreciationminimumMember / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_SeventyPercentPerformanceSharesMember | 33.33%skt_PercentOfSharesEarnedIfThresholdMet / skt_AppreciationlevelAxis = skt_PriceappreciationminimumMember / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_SeventyPercentPerformanceSharesMember |  |
Seventy percent of the performance shares [Member] | Price appreciation middle [Member] | Performance Shares [Member] |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Percent of share price appreciation |  |  |  |  | 30.00%skt_Percentofsharepriceappreciation / skt_AppreciationlevelAxis = skt_PriceappreciationmiddleMember / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_SeventyPercentPerformanceSharesMember | 30.00%skt_Percentofsharepriceappreciation / skt_AppreciationlevelAxis = skt_PriceappreciationmiddleMember / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_SeventyPercentPerformanceSharesMember |  |
Percent of Shares Earned if Threshold Met |  |  |  |  | 66.67%skt_PercentOfSharesEarnedIfThresholdMet / skt_AppreciationlevelAxis = skt_PriceappreciationmiddleMember / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_SeventyPercentPerformanceSharesMember | 66.67%skt_PercentOfSharesEarnedIfThresholdMet / skt_AppreciationlevelAxis = skt_PriceappreciationmiddleMember / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_SeventyPercentPerformanceSharesMember |  |
Seventy percent of the performance shares [Member] | Price appreciation maximum [Member] | Performance Shares [Member] |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Percent of share price appreciation |  |  |  |  | 35.00%skt_Percentofsharepriceappreciation / skt_AppreciationlevelAxis = skt_PriceappreciationmaximumMember / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_SeventyPercentPerformanceSharesMember | 35.00%skt_Percentofsharepriceappreciation / skt_AppreciationlevelAxis = skt_PriceappreciationmaximumMember / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_SeventyPercentPerformanceSharesMember |  |
Percent of Shares Earned if Threshold Met |  |  |  |  | 100.00%skt_PercentOfSharesEarnedIfThresholdMet / skt_AppreciationlevelAxis = skt_PriceappreciationmaximumMember / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_SeventyPercentPerformanceSharesMember | 100.00%skt_PercentOfSharesEarnedIfThresholdMet / skt_AppreciationlevelAxis = skt_PriceappreciationmaximumMember / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_SeventyPercentPerformanceSharesMember |  |
Thirty percent of the performance shares [Member] | Performance Shares [Member] |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Percent of Total Shares Available to be Awarded |  |  |  |  | 30.00%skt_PercentOfTotalSharesAvailableToBeAwarded / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_ThirtypercentoftheperformancesharesMemberMember | 30.00%skt_PercentOfTotalSharesAvailableToBeAwarded / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_ThirtypercentoftheperformancesharesMemberMember |  |
Thirty percent of the performance shares [Member] | Price appreciation minimum [Member] | Performance Shares [Member] |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Percent of share price appreciation |  |  |  |  | 50.00%skt_Percentofsharepriceappreciation / skt_AppreciationlevelAxis = skt_PriceappreciationminimumMember / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_ThirtypercentoftheperformancesharesMemberMember | 50.00%skt_Percentofsharepriceappreciation / skt_AppreciationlevelAxis = skt_PriceappreciationminimumMember / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_ThirtypercentoftheperformancesharesMemberMember |  |
Percent of Shares Earned if Threshold Met |  |  |  |  | 33.33%skt_PercentOfSharesEarnedIfThresholdMet / skt_AppreciationlevelAxis = skt_PriceappreciationminimumMember / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_ThirtypercentoftheperformancesharesMemberMember | 33.33%skt_PercentOfSharesEarnedIfThresholdMet / skt_AppreciationlevelAxis = skt_PriceappreciationminimumMember / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_ThirtypercentoftheperformancesharesMemberMember |  |
Thirty percent of the performance shares [Member] | Price appreciation middle [Member] | Performance Shares [Member] |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Percent of share price appreciation |  |  |  |  | 60.00%skt_Percentofsharepriceappreciation / skt_AppreciationlevelAxis = skt_PriceappreciationmiddleMember / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_ThirtypercentoftheperformancesharesMemberMember | 60.00%skt_Percentofsharepriceappreciation / skt_AppreciationlevelAxis = skt_PriceappreciationmiddleMember / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_ThirtypercentoftheperformancesharesMemberMember |  |
Percent of Shares Earned if Threshold Met |  |  |  |  | 66.67%skt_PercentOfSharesEarnedIfThresholdMet / skt_AppreciationlevelAxis = skt_PriceappreciationmiddleMember / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_ThirtypercentoftheperformancesharesMemberMember | 66.67%skt_PercentOfSharesEarnedIfThresholdMet / skt_AppreciationlevelAxis = skt_PriceappreciationmiddleMember / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_ThirtypercentoftheperformancesharesMemberMember |  |
Thirty percent of the performance shares [Member] | Price appreciation maximum [Member] | Performance Shares [Member] |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Percent of share price appreciation |  |  |  |  | 70.00%skt_Percentofsharepriceappreciation / skt_AppreciationlevelAxis = skt_PriceappreciationmaximumMember / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_ThirtypercentoftheperformancesharesMemberMember | 70.00%skt_Percentofsharepriceappreciation / skt_AppreciationlevelAxis = skt_PriceappreciationmaximumMember / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_ThirtypercentoftheperformancesharesMemberMember |  |
Percent of Shares Earned if Threshold Met |  |  |  |  | 100.00%skt_PercentOfSharesEarnedIfThresholdMet / skt_AppreciationlevelAxis = skt_PriceappreciationmaximumMember / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_ThirtypercentoftheperformancesharesMemberMember | 100.00%skt_PercentOfSharesEarnedIfThresholdMet / skt_AppreciationlevelAxis = skt_PriceappreciationmaximumMember / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_PerformanceTargetTypeAxis = skt_ThirtypercentoftheperformancesharesMemberMember |  |
Scenario, Forecast [Member] | Performance Shares [Member] |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Maximum Potential Share-Based Compensation |  |  |  |  |  |  | $ 14.3skt_MaximumPotentialShareBasedCompensation / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_StatementScenarioAxis = us-gaap_ScenarioForecastMember | $ 13.3skt_MaximumPotentialShareBasedCompensation / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_StatementScenarioAxis = us-gaap_ScenarioForecastMember
December 31, 2015 [Member] | January 4, 2016 [Member] | Performance Shares [Member] |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Vesting Percentage |  |  |  |  |  | 50.00%skt_VestingPercentage / us-gaap_AwardDateAxis = skt_December312015Member / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_VestingDateAxis = skt_January42016Member |  |
December 31, 2015 [Member] | January 3, 2017 [Member] | Performance Shares [Member] |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Vesting Percentage |  |  |  |  |  | 50.00%skt_VestingPercentage / us-gaap_AwardDateAxis = skt_December312015Member / us-gaap_AwardTypeAxis = us-gaap_PerformanceSharesMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / skt_VestingDateAxis = skt_January32017Member |  |

X
- Definition Maximum Potential Share-Based Compensation + References No definition available. + Details
Name: | skt_MaximumPotentialShareBasedCompensation
Namespace Prefix: | skt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Percent of share price appreciation + References No definition available. + Details
Name: | skt_Percentofsharepriceappreciation
Namespace Prefix: | skt_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percent of Shares Earned if Threshold Met + References No definition available. + Details
Name: | skt_PercentOfSharesEarnedIfThresholdMet
Namespace Prefix: | skt_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percent of Total Shares Available to be Awarded + References No definition available. + Details
Name: | skt_PercentOfTotalSharesAvailableToBeAwarded
Namespace Prefix: | skt_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Share-based Award Measurement Period + References No definition available. + Details
Name: | skt_SharebasedAwardMeasurementPeriod
Namespace Prefix: | skt_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the aggregate number shares that may be earned by the recipients of the stock-based compensation plan of the entity depending upon the appreciation of the price of stock of the entity above a threshold level + References No definition available. + Details
Name: | skt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateNumberOfSharesThatMayBeEarned
Namespace Prefix: | skt_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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- Definition Threshold Percentage for Performance Target + References No definition available. + Details
Name: | skt_ThresholdPercentageForPerformanceTarget
Namespace Prefix: | skt_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Vesting Percentage + References No definition available. + Details
Name: | skt_VestingPercentage
Namespace Prefix: | skt_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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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
Name: | us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
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Period Type: |

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- Details
Name: | skt_PerformanceTargetTypeAxis=skt_ThirtypercentoftheperformancesharesMemberMember
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Data Type: | na
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Period Type: |

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- Details
Name: | us-gaap_AwardDateAxis=skt_December312015Member
Namespace Prefix: |
Data Type: | na
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Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |