Quarterly report pursuant to Section 13 or 15(d)

Debt of the Operating Partnership (Narrative) (Details)

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Debt of the Operating Partnership (Narrative) (Details)
 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Aug. 12, 2016
USD ($)
Jun. 30, 2016
Aug. 31, 2016
USD ($)
Apr. 30, 2016
USD ($)
Feb. 29, 2016
USD ($)
Jan. 31, 2016
USD ($)
ft²
Mar. 31, 2016
USD ($)
Sep. 30, 2016
USD ($)
Dec. 31, 2015
USD ($)
ft²
Jun. 23, 2016
USD ($)
May 31, 2016
ft²
Dec. 31, 2011
Tanger Properties Limited Partnership [Member]                        
Debt Instrument [Line Items]                        
Principal               $ 1,741,536,000 $ 1,567,186,000      
Tanger Properties Limited Partnership [Member] | Mortgages [Member]                        
Debt Instrument [Line Items]                        
Collateral for mortgages payable               331,700,000 622,800,000      
Tanger Properties Limited Partnership [Member] | Mortgages [Member] | Atlantic City Outlets The Walk [Member]                        
Debt Instrument [Line Items]                        
Effective interest rates                       5.05%
Principal [1]               41,196,000 43,312,000      
Tanger Properties Limited Partnership [Member] | Mortgages [Member] | Deer Park [Member]                        
Debt Instrument [Line Items]                        
Repayments of Long-term Debt           $ 150,000,000            
Principal               0 150,000,000      
Tanger Properties Limited Partnership [Member] | Mortgages [Member] | Westgate [Member]                        
Debt Instrument [Line Items]                        
Repayments of Long-term Debt     $ 62,000,000                  
Tanger Properties Limited Partnership [Member] | Unsecured Notes Payable [Member]                        
Debt Instrument [Line Items]                        
Effective interest rates                       3.15%
Principal [1]               0 $ 10,000,000 $ 10,000,000    
Stated Interest Rate(s) [1]                 1.50%      
Tanger Properties Limited Partnership [Member] | Line of Credit [Member]                        
Debt Instrument [Line Items]                        
Line of credit, Maximum borrowing capacity               520,000,000        
Line of Credit Facility, Liquidity Line, Maximum Borrowings, Included in Total Line of Credit Maximum Borrowings               20,000,000        
Line of Credit Facility, Syndicated Line, Maximum Borrowings, Included in Total Line of Credit Maximum Borrowings               500,000,000        
Line of Credit Facility, Syndicated Line, Potential Maximum Borrowings if Accordion Feature is Utilized               $ 1,000,000,000        
Line of Credit, Dividend Restrictions, Percentage of Funds From Operations Allowed on a Cumulative Basis               95.00%        
Principal               $ 196,000,000 $ 190,300,000      
Tanger Properties Limited Partnership [Member] | Unsecured Term Note [Member]                        
Debt Instrument [Line Items]                        
Repayments of Long-term Debt         $ 7,500,000              
Principal               0 7,500,000      
Tanger Properties Limited Partnership [Member] | Unsecured Term Loan [Member]                        
Debt Instrument [Line Items]                        
Line of Credit Facility, Syndicated Line, Potential Maximum Borrowings if Accordion Feature is Utilized       $ 175,000,000     $ 150,000,000          
Principal       $ 325,000,000     $ 250,000,000 325,000,000 250,000,000      
Tanger Properties Limited Partnership [Member] | Senior Notes [Member] | 3.125% Senior Notes [Member]                        
Debt Instrument [Line Items]                        
Principal     250,000,000         $ 250,000,000 $ 0      
Proceeds from Issuance of Long-term Debt     $ 246,700,000                  
Debt Instrument, Pricing Percentage of Principal     99.605%                  
Debt Instrument, Percentage Yield to Maturity     3.171%                  
Stated Interest Rate(s)     3.125%         3.125%        
Minimum [Member]                        
Debt Instrument [Line Items]                        
Percent of guaranty of completion and principal guaranty               5.00%        
Minimum [Member] | Tanger Properties Limited Partnership [Member] | Mortgages [Member] | Atlantic City Outlets The Walk [Member]                        
Debt Instrument [Line Items]                        
Stated Interest Rate(s) [1]               5.14% 5.14%      
Maximum [Member]                        
Debt Instrument [Line Items]                        
Percent of guaranty of completion and principal guaranty               100.00%        
Maximum [Member] | Tanger Properties Limited Partnership [Member] | Mortgages [Member] | Atlantic City Outlets The Walk [Member]                        
Debt Instrument [Line Items]                        
Stated Interest Rate(s) [1]               7.65% 7.65%      
Deer Park [Member]                        
Debt Instrument [Line Items]                        
Square Feet | ft²           749,000            
London Interbank Offered Rate (LIBOR) [Member] | Tanger Properties Limited Partnership [Member] | Mortgages [Member] | Deer Park [Member]                        
Debt Instrument [Line Items]                        
Basis spread on variable rate                 1.50%      
London Interbank Offered Rate (LIBOR) [Member] | Tanger Properties Limited Partnership [Member] | Mortgages [Member] | Westgate [Member]                        
Debt Instrument [Line Items]                        
Basis spread on variable rate   1.75%                    
London Interbank Offered Rate (LIBOR) [Member] | Tanger Properties Limited Partnership [Member] | Line of Credit [Member]                        
Debt Instrument [Line Items]                        
Basis spread on variable rate               0.90% 0.90%      
London Interbank Offered Rate (LIBOR) [Member] | Tanger Properties Limited Partnership [Member] | Unsecured Term Note [Member]                        
Debt Instrument [Line Items]                        
Basis spread on variable rate                 1.30%      
London Interbank Offered Rate (LIBOR) [Member] | Tanger Properties Limited Partnership [Member] | Unsecured Term Loan [Member]                        
Debt Instrument [Line Items]                        
Basis spread on variable rate       0.95%     1.05% 0.95% 1.05%      
Savannah [Member]                        
Debt Instrument [Line Items]                        
Mortgage loan $ 96,900,000                      
Square Feet | ft²                 377,000 [2]   419,000  
Savannah [Member] | Joint Venture [Member] | Mortgages [Member]                        
Debt Instrument [Line Items]                        
Basis spread on variable rate 1.65%                      
[1] 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%.
[2] Based on capital contribution and distribution provisions in the joint venture agreement, our economic interest in the venture's cash flow was greater than indicated in the Ownership column, which states our legal interest in this venture. As of December 31, 2015, based upon the liquidation proceeds we would receive from a hypothetical liquidation of our investment based on depreciated book value, our estimated economic interest in the venture was approximately 98%. Our economic interest may fluctuate based on a number of factors, including mortgage financing, partnership capital contributions and distributions, and proceeds from gains or losses of asset sales.