Quarterly report pursuant to Section 13 or 15(d)

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

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Debt of the Operating Partnership (Schedule of Debt) (Details) - Tanger Properties Limited Partnership [Member] - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2016
Dec. 31, 2015
Debt Instrument [Line Items]    
Principal $ 1,489,284,000 $ 1,567,186,000
Book value of debt [1] $ 1,475,668,000 $ 1,551,924,000
Senior Notes [Member] | 6.125% Senior Notes [Member]    
Debt Instrument [Line Items]    
Stated Interest Rate(s) 6.125% 6.125%
Principal $ 300,000,000 $ 300,000,000
Book value of debt [1] $ 297,860,000 $ 297,739,000
Senior Notes [Member] | 3.875% Senior Notes [Member] [Member]    
Debt Instrument [Line Items]    
Stated Interest Rate(s) 3.875% 3.875%
Principal $ 250,000,000 $ 250,000,000
Book value of debt [1] $ 244,977,000 $ 244,829,000
Senior Notes [Member] | 3.75% Senior Notes [Member]    
Debt Instrument [Line Items]    
Stated Interest Rate(s) 3.75% 3.75%
Principal $ 250,000,000 $ 250,000,000
Book value of debt [1] $ 246,798,000 $ 246,717,000
Mortgages Payable [Member] | Atlantic City Outlets The Walk [Member]    
Debt Instrument [Line Items]    
Stated Interest Rate(s), Minimum [2] 5.14% 5.14%
Stated Interest Rate(s), Maximum [2] 7.65% 7.65%
Principal [2] $ 42,617,000 $ 43,312,000
Book value of debt [1],[2] 45,728,000 46,605,000
Mortgages Payable [Member] | Deer Park [Member]    
Debt Instrument [Line Items]    
Principal 0 150,000,000
Book value of debt [1] 0 149,145,000
Mortgages Payable [Member] | Foxwoods [Member]    
Debt Instrument [Line Items]    
Principal 70,250,000 70,250,000
Book value of debt [1] 69,651,000 69,564,000
Mortgages Payable [Member] | Southaven [Member]    
Debt Instrument [Line Items]    
Principal 52,717,000 45,824,000
Book value of debt [1] $ 52,224,000 $ 45,273,000
Unsecured Notes Payable [Member]    
Debt Instrument [Line Items]    
Stated Interest Rate(s) [2] 1.50% 1.50%
Principal [2] $ 10,000,000 $ 10,000,000
Book value of debt [1],[2] 9,959,000 9,919,000
Unsecured Term Loan [Member]    
Debt Instrument [Line Items]    
Principal 250,000,000 250,000,000
Book value of debt [1] 248,581,000 248,443,000
Unsecured Term Note [Member]    
Debt Instrument [Line Items]    
Principal 0 7,500,000
Book value of debt [1] 0 7,470,000
Line of Credit [Member]    
Debt Instrument [Line Items]    
Principal 263,700,000 190,300,000
Book value of debt [1] $ 259,890,000 $ 186,220,000
London Interbank Offered Rate (LIBOR) [Member] | Mortgages Payable [Member] | Deer Park [Member]    
Debt Instrument [Line Items]    
Basis spread on variable rate   1.50%
London Interbank Offered Rate (LIBOR) [Member] | Mortgages Payable [Member] | Foxwoods [Member]    
Debt Instrument [Line Items]    
Basis spread on variable rate 1.65% 1.65%
London Interbank Offered Rate (LIBOR) [Member] | Mortgages Payable [Member] | Southaven [Member]    
Debt Instrument [Line Items]    
Basis spread on variable rate 1.75% 1.75%
London Interbank Offered Rate (LIBOR) [Member] | Unsecured Term Loan [Member]    
Debt Instrument [Line Items]    
Basis spread on variable rate 1.05% 1.05%
London Interbank Offered Rate (LIBOR) [Member] | Unsecured Term Note [Member]    
Debt Instrument [Line Items]    
Basis spread on variable rate   1.30%
London Interbank Offered Rate (LIBOR) [Member] | Line of Credit [Member]    
Debt Instrument [Line Items]    
Basis spread on variable rate 0.90% 0.90%
[1] Including premiums and net of debt discount and net debt origination costs.
[2] The effective interest rates assigned during the purchase price allocation to the assumed mortgage and note payable during acquisitions in 2011 were as follows: Atlantic City 5.05% and unsecured note payable 3.15%.