Quarterly report pursuant to Section 13 or 15(d)

Debt of the Operating Partnership (Schedule of Debt) (Details)

v2.4.1.9
Debt of the Operating Partnership (Schedule of Debt) (Details) (Tanger Properties Limited Partnership [Member], USD $)
In Thousands, unless otherwise specified
 3 Months Ended 12 Months Ended
Mar. 31, 2015
Dec. 31, 2014
Debt Instrument [Line Items]    
Principal $ 1,465,430us-gaap_DebtInstrumentCarryingAmount $ 1,446,830us-gaap_DebtInstrumentCarryingAmount
Premium (Discount), Net (3,623)us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet (3,636)us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet
Senior Notes [Member]    
Debt Instrument [Line Items]    
Premium (Discount), Net (6,259)us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember 		(6,426)us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
Senior Notes [Member] | 6.125% Senior Notes [Member]    
Debt Instrument [Line Items]    
Stated Interest Rate(s) 6.125%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= skt_A6125SeniorNotesMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember 		6.125%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= skt_A6125SeniorNotesMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
Principal 300,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= skt_A6125SeniorNotesMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember 		300,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= skt_A6125SeniorNotesMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
Discount (1,226)us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_DebtInstrumentAxis
= skt_A6125SeniorNotesMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember 		(1,276)us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_DebtInstrumentAxis
= skt_A6125SeniorNotesMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
Senior Notes [Member] | 3.875% Senior Notes [Member] [Member]    
Debt Instrument [Line Items]    
Stated Interest Rate(s) 3.875%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= skt_A3.875SeniorNotesMemberMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember 		3.875%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= skt_A3.875SeniorNotesMemberMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
Principal 250,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= skt_A3.875SeniorNotesMemberMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember 		250,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= skt_A3.875SeniorNotesMemberMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
Discount (3,645)us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_DebtInstrumentAxis
= skt_A3.875SeniorNotesMemberMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember 		(3,732)us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_DebtInstrumentAxis
= skt_A3.875SeniorNotesMemberMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
Senior Notes [Member] | 3.75% Senior Notes [Member]    
Debt Instrument [Line Items]    
Stated Interest Rate(s) 3.75%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= skt_A3.75SeniorNotesMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember 		3.75%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= skt_A3.75SeniorNotesMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
Principal 250,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= skt_A3.75SeniorNotesMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember 		250,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= skt_A3.75SeniorNotesMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
Discount (1,388)us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_DebtInstrumentAxis
= skt_A3.75SeniorNotesMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember 		(1,418)us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_DebtInstrumentAxis
= skt_A3.75SeniorNotesMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
Mortgages Payable [Member]    
Debt Instrument [Line Items]    
Premium (Discount), Net 2,838us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		3,031us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember
Mortgages Payable [Member] | Atlantic City Outlets The Walk [Member]    
Debt Instrument [Line Items]    
Stated Interest Rate(s), Minimum 5.14%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum
/ us-gaap_DebtInstrumentAxis
= skt_AtlanticCityOutletsWalkMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		[1] 5.14%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum
/ us-gaap_DebtInstrumentAxis
= skt_AtlanticCityOutletsWalkMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		[1]
Stated Interest Rate(s), Maximum 7.65%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum
/ us-gaap_DebtInstrumentAxis
= skt_AtlanticCityOutletsWalkMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		[1] 7.65%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum
/ us-gaap_DebtInstrumentAxis
= skt_AtlanticCityOutletsWalkMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		[1]
Principal 45,340us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= skt_AtlanticCityOutletsWalkMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		45,997us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= skt_AtlanticCityOutletsWalkMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		[1]
Premium 3,594us-gaap_DebtInstrumentUnamortizedPremium
/ us-gaap_DebtInstrumentAxis
= skt_AtlanticCityOutletsWalkMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		[1] 3,694us-gaap_DebtInstrumentUnamortizedPremium
/ us-gaap_DebtInstrumentAxis
= skt_AtlanticCityOutletsWalkMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		[1]
Mortgages Payable [Member] | Deer Park [Member]    
Debt Instrument [Line Items]    
Principal 150,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= skt_DeerParkMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		150,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= skt_DeerParkMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember
Discount (1,082)us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_DebtInstrumentAxis
= skt_DeerParkMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		(1,161)us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_DebtInstrumentAxis
= skt_DeerParkMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember
Mortgages Payable [Member] | Foxwoods [Member]    
Debt Instrument [Line Items]    
Principal 40,076us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= skt_FoxwoodsMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		25,235us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= skt_FoxwoodsMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember
Mortgages Payable [Member] | The Outlets at Hershey [Member]    
Debt Instrument [Line Items]    
Stated Interest Rate(s), Minimum 5.17%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum
/ us-gaap_DebtInstrumentAxis
= skt_OutletsAtHersheyMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		[1] 5.17%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum
/ us-gaap_DebtInstrumentAxis
= skt_OutletsAtHersheyMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		[1]
Stated Interest Rate(s), Maximum 8.00%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum
/ us-gaap_DebtInstrumentAxis
= skt_OutletsAtHersheyMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		[1] 8.00%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum
/ us-gaap_DebtInstrumentAxis
= skt_OutletsAtHersheyMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		[1]
Principal 29,085us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= skt_OutletsAtHersheyMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		29,271us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= skt_OutletsAtHersheyMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		[1]
Premium 251us-gaap_DebtInstrumentUnamortizedPremium
/ us-gaap_DebtInstrumentAxis
= skt_OutletsAtHersheyMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		[1] 399us-gaap_DebtInstrumentUnamortizedPremium
/ us-gaap_DebtInstrumentAxis
= skt_OutletsAtHersheyMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		[1]
Mortgages Payable [Member] | Ocean City Factory Outlets [Member]    
Debt Instrument [Line Items]    
Stated Interest Rate(s) 5.24%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= skt_OceanCityFactoryOutletsMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		[1] 5.24%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= skt_OceanCityFactoryOutletsMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		[1]
Principal 17,729us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= skt_OceanCityFactoryOutletsMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		17,827us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= skt_OceanCityFactoryOutletsMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		[1]
Premium 75us-gaap_DebtInstrumentUnamortizedPremium
/ us-gaap_DebtInstrumentAxis
= skt_OceanCityFactoryOutletsMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		[1] 99us-gaap_DebtInstrumentUnamortizedPremium
/ us-gaap_DebtInstrumentAxis
= skt_OceanCityFactoryOutletsMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember 		[1]
Notes Payable [Member]    
Debt Instrument [Line Items]    
Stated Interest Rate(s) 1.50%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember 		[1] 1.50%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember 		[1]
Principal 10,000us-gaap_DebtInstrumentCarryingAmount
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember 		[1] 10,000us-gaap_DebtInstrumentCarryingAmount
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember 		[1]
Discount (202)us-gaap_DebtInstrumentUnamortizedDiscount
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember 		[1] (241)us-gaap_DebtInstrumentUnamortizedDiscount
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember 		[1]
Unsecured Term Loan [Member]    
Debt Instrument [Line Items]    
Principal 250,000us-gaap_DebtInstrumentCarryingAmount
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= skt_UnsecuredTermLoanMember 		250,000us-gaap_DebtInstrumentCarryingAmount
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= skt_UnsecuredTermLoanMember
Unsecured Term Note [Member]    
Debt Instrument [Line Items]    
Principal 7,500us-gaap_DebtInstrumentCarryingAmount
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= skt_UnsecuredTermNoteMember 		7,500us-gaap_DebtInstrumentCarryingAmount
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= skt_UnsecuredTermNoteMember
Line of Credit [Member]    
Debt Instrument [Line Items]    
Principal $ 115,700us-gaap_DebtInstrumentCarryingAmount
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember 		$ 111,000us-gaap_DebtInstrumentCarryingAmount
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
London Interbank Offered Rate (LIBOR) [Member] | Mortgages Payable [Member] | Deer Park [Member]    
Debt Instrument [Line Items]    
Basis spread on variable rate 1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= skt_DeerParkMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember 		1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= skt_DeerParkMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember
London Interbank Offered Rate (LIBOR) [Member] | Mortgages Payable [Member] | Foxwoods [Member]    
Debt Instrument [Line Items]    
Basis spread on variable rate 1.65%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= skt_FoxwoodsMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember 		1.65%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= skt_FoxwoodsMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember
London Interbank Offered Rate (LIBOR) [Member] | Unsecured Term Loan [Member]    
Debt Instrument [Line Items]    
Basis spread on variable rate 1.05%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= skt_UnsecuredTermLoanMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember 		1.05%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= skt_UnsecuredTermLoanMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember
London Interbank Offered Rate (LIBOR) [Member] | Unsecured Term Note [Member]    
Debt Instrument [Line Items]    
Basis spread on variable rate 1.30%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= skt_UnsecuredTermNoteMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember 		1.30%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= skt_UnsecuredTermNoteMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember
London Interbank Offered Rate (LIBOR) [Member] | Line of Credit [Member]    
Debt Instrument [Line Items]    
Basis spread on variable rate 1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember 		1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember
[1] The effective interest rates assigned during the purchase price allocation to these assumed mortgages and note payable during acquisitions in 2011 were as follows: Atlantic City 5.05%, Hershey 3.40%, Ocean City 4.68%, and note payable 3.15%.