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) - USD ($)
1 Months Ended 4 Months Ended 6 Months Ended
Apr. 30, 2021
Jun. 30, 2021
Jun. 30, 2021
Jun. 30, 2020
Jul. 31, 2021
Mar. 31, 2021
Feb. 28, 2021
Dec. 31, 2020
Minimum [Member]                
Debt Instrument [Line Items]                
Percent of guaranty of completion and principal guaranty   5.00% 5.00%          
Maximum [Member]                
Debt Instrument [Line Items]                
Percent of guaranty of completion and principal guaranty   100.00% 100.00%          
Tanger Properties Limited Partnership [Member]                
Debt Instrument [Line Items]                
Repayments of Other Long-term Debt     $ 201,861,000 $ 1,758,000        
Principal   $ 1,376,881,000 1,376,881,000         $ 1,578,743,000
Tanger Properties Limited Partnership [Member] | Mortgages [Member]                
Debt Instrument [Line Items]                
Net book value of collateral for mortgages payable   159,900,000 159,900,000          
Tanger Properties Limited Partnership [Member] | Line of Credit [Member]                
Debt Instrument [Line Items]                
Maximum Borrowings of Liquidity Line   20,000,000.0 20,000,000.0          
Maximum Borrowings of Syndicated Line   580,000,000.0 580,000,000.0          
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%          
Principal   0 $ 0         0
Tanger Properties Limited Partnership [Member] | Line of Credit [Member] | Subsequent Event [Member]                
Debt Instrument [Line Items]                
Line of credit borrowing capacity         $ 520,000,000.0      
Maximum Borrowings of Liquidity Line         20,000,000.0      
Maximum Borrowings of Syndicated Line         500,000,000.0      
Maximum Borrowings of Syndicated Line if Accordion Feature is Utilized         $ 1,200,000,000      
Tanger Properties Limited Partnership [Member] | Unsecured Term Loan [Member]                
Debt Instrument [Line Items]                
Repayments of Other Long-term Debt   50,000,000.0            
Principal   300,000,000 300,000,000       $ 350,000,000.0 350,000,000
Tanger Properties Limited Partnership [Member] | Senior Notes [Member] | 3.875% 2023 Senior Notes [Member]                
Debt Instrument [Line Items]                
Principal   $ 100,000,000 $ 100,000,000     $ 250,000,000.0   250,000,000
principal amount redeemed $ 150,000,000.0              
Stated Interest Rate(s) 3.875% 3.875% 3.875%          
Repayments of Other Debt $ 163,000,000.0              
Debt retirement make whole premium 13,000,000.0              
Debt discount and origination cost write-off $ 1,000,000.0              
Tanger Properties Limited Partnership [Member] | Debt [Member] | Line of Credit [Member]                
Debt Instrument [Line Items]                
Line of credit borrowing capacity   $ 600,000,000.0 $ 600,000,000.0          
Tanger Factory Outlet Centers, Inc. [Member]                
Debt Instrument [Line Items]                
Repayments of Other Long-term Debt     201,861,000 $ 1,758,000        
Tanger Factory Outlet Centers, Inc. [Member] | Debt [Member] | Mortgages [Member]                
Debt Instrument [Line Items]                
Unsecured term loan   21,900,000 21,900,000          
Tanger Factory Outlet Centers, Inc. [Member] | Debt [Member] | Line of Credit [Member]                
Debt Instrument [Line Items]                
Unsecured term loan   0 0         0
Tanger Factory Outlet Centers, Inc. [Member] | Debt [Member] | Unsecured Term Loan [Member]                
Debt Instrument [Line Items]                
Unsecured term loan   $ 300,000,000 $ 300,000,000         $ 350,000,000