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, 2017
Dec. 31, 2016
Debt [Member] | Mortgages [Member]    
Line of Credit Facility [Line Items]    
Guarantor obligations, current carrying value $ 32,800,000  
Tanger Properties Limited Partnership [Member] | Line of Credit [Member]    
Line of Credit Facility [Line Items]    
Maximum Borrowing Capacity 520,000,000  
Letters of Credit Outstanding, Amount 6,000,000  
Tanger Properties Limited Partnership [Member] | Debt [Member] | Line of Credit [Member]    
Line of Credit Facility [Line Items]    
Maximum Borrowing Capacity 520,000,000  
Tanger Factory Outlet Centers, Inc. [Member] | Debt [Member] | Line of Credit [Member]    
Line of Credit Facility [Line Items]    
Guarantor obligations, current carrying value 208,100,000 $ 61,000,000
Tanger Factory Outlet Centers, Inc. [Member] | Debt [Member] | Unsecured Term Loan [Member]    
Line of Credit Facility [Line Items]    
Guarantor obligations, current carrying value $ 325,000,000 $ 325,000,000