Annual report pursuant to Section 13 and 15(d)

Debt of the Operating Partnership Debt Maturities (Details)

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Debt of the Operating Partnership Debt Maturities (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2010
Dec. 31, 2011
Tanger Factory Outlet Centers, Inc [Member]
      
Schedule of Maturities of Debt [Line Items]      
Total debt $ 1,093,537   $ 1,025,542
Tanger Properties Limited Partnership [Member]
      
Schedule of Maturities of Debt [Line Items]      
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months 4,633    
Long-term Debt, Maturities, Repayments of Principal in Year Two 3,599    
Long-term Debt, Maturities, Repayments of Principal in Year Three 460,645    
Long-term Debt, Maturities, Repayments of Principal in Year Four 30,279    
Long-term Debt, Maturities, Repayments of Principal in Year Five 3,004    
Long-term Debt, Maturities, Repayments of Principal after Year Five 587,529    
Long-term Debt, Gross 1,089,689   1,021,037
Debt Instrument, Unamortized Discount (3,848)   (4,505)
Total debt 1,093,537   1,025,542
Line of Credit [Member] | Tanger Properties Limited Partnership [Member]
      
Schedule of Maturities of Debt [Line Items]      
Debt Instrument, Maturity Date Nov. 10, 2015    
Debt Instrument, Unamortized Discount 0 [1]   0 [1]
6.125% Senior Notes [Member] | Tanger Properties Limited Partnership [Member]
      
Schedule of Maturities of Debt [Line Items]      
Debt Instrument, Maturity Date Jun. 01, 2020 Jun. 30, 2020  
Debt Instrument, Unamortized Discount 1,650   1,820
Unsecured Term Loan [Member] | Tanger Properties Limited Partnership [Member]
      
Schedule of Maturities of Debt [Line Items]      
Debt Instrument, Maturity Date Feb. 23, 2019    
Debt Instrument, Unamortized Discount 0 [2]   0 [2]
Total debt 250,000 [2]   0 [2]
Atlantic City Outlets The Walk [Member] | Tanger Properties Limited Partnership [Member]
      
Schedule of Maturities of Debt [Line Items]      
Debt Instrument, Unamortized Discount (4,495) [3]   (4,894) [3]
Debt [Member] | Unsecured Term Loan [Member] | Tanger Properties Limited Partnership [Member]
      
Schedule of Maturities of Debt [Line Items]      
Total debt $ 250,000    
[1] (3)Our unsecured lines of credit as of December 31, 2012 bear interest at a rate of LIBOR + 1.25% and expire on November 10, 2015. We have the option to extend the lines for one additional year to November 10, 2016. These lines require a facility fee payment of 0.25% annually based on the total amount of the commitment. The credit spread and facility fee can vary depending on our investment grade rating.
[2] (2)Our unsecured term loan is pre-payable without penalty beginning in February of 2015.
[3] (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%, Ocean City 4.68%, Hershey 3.40% and note payable 3.15%