Quarterly report pursuant to Section 13 or 15(d)

Debt of the Operating Partnership (Narrative) (Details)

v3.21.2
Debt of the Operating Partnership (Narrative) (Details)
1 Months Ended 4 Months Ended 9 Months Ended
Aug. 31, 2021
USD ($)
Jul. 31, 2021
USD ($)
Extension
Apr. 30, 2021
USD ($)
Jun. 30, 2021
USD ($)
Sep. 30, 2021
USD ($)
Sep. 30, 2020
USD ($)
May 31, 2021
USD ($)
Mar. 31, 2021
USD ($)
Feb. 28, 2021
USD ($)
Dec. 31, 2020
USD ($)
Minimum [Member]                    
Debt Instrument [Line Items]                    
Percent of guaranty of completion and principal guaranty         5.00%          
Maximum [Member]                    
Debt Instrument [Line Items]                    
Percent of guaranty of completion and principal guaranty         100.00%          
Tanger Properties Limited Partnership [Member]                    
Debt Instrument [Line Items]                    
Repayments of Other Long-term Debt         $ 552,811,000 $ 2,656,000        
Long-term Debt, Gross         1,425,931,000         $ 1,578,743,000
Book value of debt         1,410,765,000         1,567,886,000
Tanger Properties Limited Partnership [Member] | Mortgages [Member]                    
Debt Instrument [Line Items]                    
Net book value of collateral for mortgages payable         155,200,000          
Tanger Properties Limited Partnership [Member] | Line of Credit [Member]                    
Debt Instrument [Line Items]                    
Maximum Borrowings of Liquidity Line   $ 20,000,000     20,000,000          
Maximum Borrowings of Syndicated Line   500,000,000     500,000,000          
Maximum Borrowings of Syndicated Line if Accordion Feature is Utilized   $ 1,200,000,000     $ 1,200,000,000          
Percentage of funds from operations allowed on a cumulative basis to pay dividends         95.00%          
Long-term Debt, Gross         $ 0         0
Number of extensions | Extension   2                
Term of extension   6 months                
LIBOR floor interest rate       0.25%            
Basis point annual reduction in the interest rate if we meet certain sustainability thresholds   1                
Percent of facility fee   0.25%                
Book value of debt         0         0
Tanger Properties Limited Partnership [Member] | Unsecured Term Loan [Member]                    
Debt Instrument [Line Items]                    
Repayments of Other Long-term Debt       $ 50,000,000            
Long-term Debt, Gross         300,000,000       $ 350,000,000 350,000,000
Book value of debt         298,288,000         347,370,000
Tanger Properties Limited Partnership [Member] | Senior Notes [Member] | 3.875% 2023 Senior Notes [Member]                    
Debt Instrument [Line Items]                    
Long-term Debt, Gross $ 100,000,000       $ 0   $ 100,000,000 $ 250,000,000   250,000,000
principal amount redeemed     $ 150,000,000              
Stated Interest Rate 3.875%   3.875%   3.875%          
Repayments of Other Debt     $ 163,000,000              
Debt retirement make whole premium     13,000,000              
Debt discount and origination cost write-off     $ 1,000,000              
Book value of debt         $ 0         247,967,000
Tanger Properties Limited Partnership [Member] | Senior Notes [Member] | 2.750% Senior Notes                    
Debt Instrument [Line Items]                    
Long-term Debt, Gross $ 400,000,000       $ 400,000,000         0
Stated Interest Rate 2.75%       2.75%          
Maximum offering price per security 98.552%                  
Debt Instrument, Interest Rate, Effective Percentage 2.917%                  
Book value of debt $ 390,700,000       $ 390,839,000         0
Tanger Properties Limited Partnership [Member] | Senior Notes [Member] | 3.75% 2024 Senior Notes [Member]                    
Debt Instrument [Line Items]                    
Long-term Debt, Gross $ 250,000,000       $ 0         250,000,000
Stated Interest Rate 3.75%       3.75%          
Book value of debt         $ 0         248,493,000
Tanger Properties Limited Partnership [Member] | Senior Notes [Member] | 3.75% and 3.875% Senior Notes                    
Debt Instrument [Line Items]                    
Debt retirement make whole premium $ 31,900,000                  
Debt discount and origination cost write-off $ 1,900,000                  
Tanger Properties Limited Partnership [Member] | Debt [Member] | Line of Credit [Member]                    
Debt Instrument [Line Items]                    
Line of credit borrowing capacity   $ 520,000,000     520,000,000          
Tanger Factory Outlet Centers, Inc. [Member]                    
Debt Instrument [Line Items]                    
Repayments of Other Long-term Debt         552,811,000 $ 2,656,000        
Book value of debt         1,410,765,000         1,567,886,000
Tanger Factory Outlet Centers, Inc. [Member] | Debt [Member] | Mortgages [Member]                    
Debt Instrument [Line Items]                    
Maximum amount of unconsolidated joint venture debt guaranteed by the Company         21,900,000          
Tanger Factory Outlet Centers, Inc. [Member] | Debt [Member] | Line of Credit [Member]                    
Debt Instrument [Line Items]                    
Maximum amount of unconsolidated joint venture debt guaranteed by the Company         0         0
Tanger Factory Outlet Centers, Inc. [Member] | Debt [Member] | Unsecured Term Loan [Member]                    
Debt Instrument [Line Items]                    
Maximum amount of unconsolidated joint venture debt guaranteed by the Company         $ 300,000,000         $ 350,000,000