Quarterly report pursuant to Section 13 or 15(d)

Investments in Unconsolidated Real Estate Joint Ventures (Narrative) (Details)

v2.4.1.9
Investments in Unconsolidated Real Estate Joint Ventures (Narrative) (Details) (USD $)
 1 Months Ended 3 Months Ended
Feb. 28, 2015
Mar. 31, 2015
Dec. 31, 2014
sqft
Schedule of Equity Method Investments [Line Items]      
Differences in basis   $ 4,400,000us-gaap_EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity $ 4,400,000us-gaap_EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity
Total Joint Venture Debt (in millions)   280,200,000skt_JointVentureDebtOutstanding 268,200,000skt_JointVentureDebtOutstanding
Savannah [Member]      
Schedule of Equity Method Investments [Line Items]      
Square Feet   0us-gaap_AreaOfRealEstateProperty
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_SavannahMember 		[1] 0us-gaap_AreaOfRealEstateProperty
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_SavannahMember 		[1]
Estimated square footage of real estate property when completed   377,000skt_EstimatedSquareFootageofRealEstatePropertyWhenCompleted
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_SavannahMember 		 
Company portion of contributed capital to the joint venture   45,200,000skt_CompanyPortionOfContributedCapitalToJointVenture
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_SavannahMember 		 
Partner's Portion of Contributed Capital to the Joint Venture   8,300,000skt_PartnersPortionofContributedCapitaltotheJointVenture
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_SavannahMember 		 
Preferred return percentage prior to grand opening date   8.00%skt_Preferredreturnpercentagepriortograndopeningdate
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_SavannahMember 		 
Preferred return percentage after grand opening date   10.00%skt_Preferredreturnpercentageaftergrandopeningdate
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_SavannahMember 		 
Joint Venture Debt, Maximum Borrowings   97,700,000.0skt_JointVentureDebtMaximumBorrowings
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_SavannahMember 		 
Joint Venture Debt, Maximum Borrowings That May Be Used For Expansions   4,700,000skt_JointVentureDebtMaximumBorrowingsThatMayBeUsedForExpansions
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_SavannahMember 		 
Basis spread on variable rate   1.65%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_SavannahMember 		 
Number of mortgage extensions   2skt_Numberofmortgageextensions
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_SavannahMember 		 
Term of mortgage extension   1 year  
Total Joint Venture Debt (in millions)   55,200,000skt_JointVentureDebtOutstanding
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_SavannahMember 		[1] 25,500,000skt_JointVentureDebtOutstanding
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_SavannahMember 		[1]
Westgate [Member]      
Schedule of Equity Method Investments [Line Items]      
Estimated Square Feet of Expansion   28,000skt_EstimatedSquareFeetofExpansion
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_WestgateMember 		 
Estimated total square feet of expansion   78,000skt_Estimatedtotalsquarefeetofexpansion
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_WestgateMember 		 
Square Feet   411,000us-gaap_AreaOfRealEstateProperty
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_WestgateMember 		381,000us-gaap_AreaOfRealEstateProperty
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_WestgateMember
Joint Venture Debt, Maximum Borrowings   62,000,000.0skt_JointVentureDebtMaximumBorrowings
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_WestgateMember 		 
Term of mortgage extension   2 years  
Total Joint Venture Debt (in millions)   62,000,000skt_JointVentureDebtOutstanding
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_WestgateMember 		54,000,000skt_JointVentureDebtOutstanding
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_WestgateMember
Wisconsin Dells [Member]      
Schedule of Equity Method Investments [Line Items]      
Square Feet     265,000us-gaap_AreaOfRealEstateProperty
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_WisconsinDellsMember
Total Joint Venture Debt (in millions)     24,300,000skt_JointVentureDebtOutstanding
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_WisconsinDellsMember
Net sales price from sale of joint venture 15,600,000skt_Netsalespricefromsaleofjointventure
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_WisconsinDellsMember 		   
Sales Price 27,700,000skt_Companysshareofsalespriceofsaleofjointventure
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_WisconsinDellsMember 		   
Company's share of joint venture debt 12,100,000skt_Companysshareofjointventuredebt
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_WisconsinDellsMember 		   
Gain on sale of equity interest in unconsolidated joint venture   $ 13,700,000us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= skt_WisconsinDellsMember 		 
[1] Based on capital contribution and distribution provisions in the joint venture agreement, we expect our economic interest in the venture's cash flow to be greater than the ownership percentage indicated above, which in this case, states our legal interest in this venture. Our economic interest may fluctuate based on a number of factors, including mortgage financing, partnership capital contributions and distributions, and proceeds from gains or losses of asset sales.