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Organization of the Company (Details) | Dec. 31, 2014 | Dec. 31, 2013
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Entity Information [Line Items] |  |
Number of operating partnership units owned by wholly-owned subsidiaries | 95,509,781skt_NumberofOperatingPartnershipUnitsOwnedbytheCompany |
Consolidated Properties [Member] |  |
Entity Information [Line Items] |  |
Number of Outlet Centers | 36us-gaap_NumberOfRealEstateProperties / us-gaap_RealEstatePropertiesAxis = us-gaap_ConsolidatedPropertiesMember |
Total gross leaseable area | 11,300,000skt_TotalGrossLeaseableAreaOfOutletCenters / us-gaap_RealEstatePropertiesAxis = us-gaap_ConsolidatedPropertiesMember |
Outlet center occupancy percentage | 98.00%skt_OutletCenterOccupancyPercentage / us-gaap_RealEstatePropertiesAxis = us-gaap_ConsolidatedPropertiesMember |
Number of stores | 2,400us-gaap_NumberOfStores / us-gaap_RealEstatePropertiesAxis = us-gaap_ConsolidatedPropertiesMember |
Number of store brands | 380skt_NumberOfStoreBrands / us-gaap_RealEstatePropertiesAxis = us-gaap_ConsolidatedPropertiesMember |
Unconsolidated Properties [Member] |  |
Entity Information [Line Items] |  |
Number of Outlet Centers | 9us-gaap_NumberOfRealEstateProperties / us-gaap_RealEstatePropertiesAxis = us-gaap_UnconsolidatedPropertiesMember |
Total gross leaseable area | 2,600,000skt_TotalGrossLeaseableAreaOfOutletCenters / us-gaap_RealEstatePropertiesAxis = us-gaap_UnconsolidatedPropertiesMember |
CANADA | Unconsolidated Properties [Member] |  |
Entity Information [Line Items] |  |
Number of Outlet Centers | 4us-gaap_NumberOfRealEstateProperties / us-gaap_RealEstatePropertiesAxis = us-gaap_UnconsolidatedPropertiesMember / us-gaap_StatementGeographicalAxis = country_CA |
Tanger Properties Limited Partnership [Member] | Class A Limited Partnership Units [Member] |  |
Entity Information [Line Items] |  |
Number of operating partnership units owned by family limited partners | 5,078,406skt_NumberofOperatingPartnershipUnitsOwnedbytheOperatingPartnershipandOtherLimitedPartners / dei_LegalEntityAxis = us-gaap_SubsidiariesMember / us-gaap_StatementClassOfStockAxis = skt_ClassALimitedPartnershipUnitsMember | 5,145,012skt_NumberofOperatingPartnershipUnitsOwnedbytheOperatingPartnershipandOtherLimitedPartners / dei_LegalEntityAxis = us-gaap_SubsidiariesMember / us-gaap_StatementClassOfStockAxis = skt_ClassALimitedPartnershipUnitsMember

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- Definition Number of Operating Partnership Units Owned by the Company, Through Its Ownership of Tanger GP Trust and Tanger LP Trust + References No definition available. + Details
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- Definition Number of Operating Partnership Units Owned by the Operating Partnership and Other Limited Partners + References No definition available. + Details
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- Definition Number of Store Brands + References No definition available. + Details
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- Definition Outlet Center Occupancy Percentage + References No definition available. + Details
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- Definition Total gross leaseable area of outlet centers in square feet. + References No definition available. + Details
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- Definition The number of real estate properties owned as of the balance sheet date. + References No definition available. + Details
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- Definition Represents the number of stores. + References No definition available. + Details
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