Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Income Taxes (Details)

v2.4.1.9
Summary of Significant Accounting Policies - Income Taxes (Details) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Schedule of Common Dividends Per Share [Line Items]      
REIT annual taxable income distribution requirement percentage 90.00%skt_ReitAnnualTaxableIncomeDistributionRequirementPercentage    
Tanger Factory Outlet Centers, Inc [Member]      
Schedule of Common Dividends Per Share [Line Items]      
Common dividends per share (in dollars per share) $ 0.9450us-gaap_CommonStockDividendsPerShareCashPaid
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember 		$ 0.8850us-gaap_CommonStockDividendsPerShareCashPaid
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember 		$ 0.8300us-gaap_CommonStockDividendsPerShareCashPaid
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Tanger Factory Outlet Centers, Inc [Member] | Ordinary Income [Member]      
Schedule of Common Dividends Per Share [Line Items]      
Common dividends per share (in dollars per share) $ 0.7645us-gaap_CommonStockDividendsPerShareCashPaid
/ us-gaap_DividendsAxis
= skt_OrdinaryIncomeMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember 		$ 0.7894us-gaap_CommonStockDividendsPerShareCashPaid
/ us-gaap_DividendsAxis
= skt_OrdinaryIncomeMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember 		$ 0.8293us-gaap_CommonStockDividendsPerShareCashPaid
/ us-gaap_DividendsAxis
= skt_OrdinaryIncomeMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Tanger Factory Outlet Centers, Inc [Member] | Capital Gain [Member]      
Schedule of Common Dividends Per Share [Line Items]      
Common dividends per share (in dollars per share) $ 0us-gaap_CommonStockDividendsPerShareCashPaid
/ us-gaap_DividendsAxis
= skt_CapitalGainMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember 		$ 0.0115us-gaap_CommonStockDividendsPerShareCashPaid
/ us-gaap_DividendsAxis
= skt_CapitalGainMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember 		$ 0us-gaap_CommonStockDividendsPerShareCashPaid
/ us-gaap_DividendsAxis
= skt_CapitalGainMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
Tanger Factory Outlet Centers, Inc [Member] | Return Of Captial [Member]      
Schedule of Common Dividends Per Share [Line Items]      
Common dividends per share (in dollars per share) $ 0.1805us-gaap_CommonStockDividendsPerShareCashPaid
/ us-gaap_DividendsAxis
= skt_ReturnOfCaptialMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember 		$ 0.0841us-gaap_CommonStockDividendsPerShareCashPaid
/ us-gaap_DividendsAxis
= skt_ReturnOfCaptialMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember 		$ 0.0007us-gaap_CommonStockDividendsPerShareCashPaid
/ us-gaap_DividendsAxis
= skt_ReturnOfCaptialMember
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember