Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Narrative (Details)

v2.4.1.9
Summary of Significant Accounting Policies - Narrative (Details) (USD $)
1 Months Ended 12 Months Ended
Aug. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Equity method investments   $ 208,000,000us-gaap_EquityMethodInvestments $ 140,200,000us-gaap_EquityMethodInvestments  
Number of properties held for sale   4skt_Numberofpropertiesheldforsale    
Management, leasing and other services   3,591,000skt_Managementleasingandotherservicesrevenue 3,080,000skt_Managementleasingandotherservicesrevenue 2,007,000skt_Managementleasingandotherservicesrevenue
Tanger Properties Limited Partnership [Member]        
Stock split, conversion ratio 4us-gaap_StockholdersEquityNoteStockSplitConversionRatio1
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
     
Exchange ratio of partnership units for common shares 1skt_ExchangeRatioofPartnershipUnitsforCommonShares
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
     
Partnership unit exchange ratio 4skt_PartnershipUnitExchangeRatio
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
     
Management, leasing and other services   $ 3,591,000skt_Managementleasingandotherservicesrevenue
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
$ 3,080,000skt_Managementleasingandotherservicesrevenue
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
$ 2,007,000skt_Managementleasingandotherservicesrevenue
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
Potential Sale in first quarter of 2015 [Member]        
Number of properties held for sale   3skt_Numberofpropertiesheldforsale
/ skt_PurchaseoptiondateAxis
= skt_Date1Member
   
Potential Sale in first quarter of fiscal 2016 [Member]        
Number of properties held for sale   1skt_Numberofpropertiesheldforsale
/ skt_PurchaseoptiondateAxis
= skt_Date2Member