Annual report pursuant to Section 13 and 15(d)

Debt of the Company (Details)

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Debt of the Company (Details) (USD $)
Dec. 31, 2012
Dec. 31, 2011
Tanger Factory Outlet Centers, Inc [Member]
   
Line of Credit Facility [Line Items]    
Long-term Line of Credit $ 178,306,000 $ 357,092,000
Tanger Properties Limited Partnership [Member]
   
Line of Credit Facility [Line Items]    
Long-term Line of Credit 178,306,000 357,092,000
Tanger Properties Limited Partnership [Member] | Line of Credit [Member]
   
Line of Credit Facility [Line Items]    
Long-term Line of Credit 178,306,000 [1] 357,092,000 [1]
Debt [Member] | Tanger Factory Outlet Centers, Inc [Member] | Line of Credit [Member]
   
Line of Credit Facility [Line Items]    
Guarantor Obligations, Maximum Exposure, Undiscounted 520,000,000  
Debt [Member] | Tanger Properties Limited Partnership [Member] | Line of Credit [Member]
   
Line of Credit Facility [Line Items]    
Long-term Line of Credit $ 178,300,000  
[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.