Annual report pursuant to Section 13 and 15(d)

Equity-Based Compensation - Exercise Price (Details)

v2.4.1.9
Equity-Based Compensation - Exercise Price (Details) (Tanger Factory Outlet Centers, Inc [Member], USD $)
 12 Months Ended
Dec. 31, 2014
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Options Outstanding, Options 370,500us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
Options Outstanding, Weighted average exercise price (in dollars per share) $ 30.20us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1
Weighted remaining contractual life in years 8 years 1 month 15 days
Options Exercisable, Options 52,600us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions
Options Exercisable, Weighted average exercise price (in dollars per share) $ 26.06us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1
Exercise price 26.06 [Member]
  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Options Outstanding, Options 113,000us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= skt_ExercisePriceOneMemberMember
Options Outstanding, Weighted average exercise price (in dollars per share) $ 26.06us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= skt_ExercisePriceOneMemberMember
Weighted remaining contractual life in years 6 years 1 month 3 days
Options Exercisable, Options 52,600us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= skt_ExercisePriceOneMemberMember
Options Exercisable, Weighted average exercise price (in dollars per share) $ 26.06us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= skt_ExercisePriceOneMemberMember
Exercise price 32.02 [Member]
  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Options Outstanding, Options 257,500us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= skt_ExercisePriceTwoMember
Options Outstanding, Weighted average exercise price (in dollars per share) $ 32.02us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= skt_ExercisePriceTwoMember
Weighted remaining contractual life in years 9 years 0 months 5 days
Options Exercisable, Options 0us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= skt_ExercisePriceTwoMember
Options Exercisable, Weighted average exercise price (in dollars per share) $ 0.00us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= skt_ExercisePriceTwoMember