v3.26.1
Debt of the Operating Partnership (Schedule of Debt) (Details) - USD ($)
$ in Thousands
 1 Months Ended 6 Months Ended
Apr. 30, 2026
Jun. 30, 2026
Dec. 31, 2025
Dec. 31, 2011
Debt Instrument [Line Items]        
Book Value   $ 1,860,963 $ 1,596,821  
Unsecured term loans | Unsecured term loan one        
Debt Instrument [Line Items]        
Basis spread on variable rate (percent) 0.95%      
Unsecured term loans | Unsecured term loan two        
Debt Instrument [Line Items]        
Basis spread on variable rate (percent) 1.25%      
Tanger Properties Limited Partnership        
Debt Instrument [Line Items]        
Principal   1,876,700 1,601,405  
Book Value   1,860,963 1,596,821  
Unamortized debt issuance costs   $ 15,700 4,600  
Tanger Properties Limited Partnership | Senior notes | 3.125% 2026 Senior Notes        
Debt Instrument [Line Items]        
Fixed interest rate (percent)   3.125%    
Effective rate (percent)   3.20%    
Principal   $ 350,000 350,000  
Book Value   $ 349,917 349,631  
Tanger Properties Limited Partnership | Senior notes | 3.875% 2027 Senior Notes        
Debt Instrument [Line Items]        
Fixed interest rate (percent)   3.875%    
Effective rate (percent)   3.90%    
Principal   $ 300,000 300,000  
Book Value   $ 299,579 299,370  
Tanger Properties Limited Partnership | Senior notes | 2.750% 2031 Senior Notes        
Debt Instrument [Line Items]        
Fixed interest rate (percent)   2.75%    
Effective rate (percent)   2.90%    
Principal   $ 400,000 400,000  
Book Value   $ 395,062 394,608  
Tanger Properties Limited Partnership | Senior notes | 2.375% Exchangeable Senior Notes        
Debt Instrument [Line Items]        
Fixed interest rate (percent)   2.375%    
Effective rate (percent)   2.40%    
Principal   $ 250,000 0  
Book Value   $ 243,150 0  
Tanger Properties Limited Partnership | Unsecured term loans | Unsecured term loan one        
Debt Instrument [Line Items]        
Basis spread on variable rate (percent)   0.95%    
Effective rate (percent)   4.70%    
Principal   $ 250,000 325,000  
Book Value   $ 246,557 323,978  
Tanger Properties Limited Partnership | Unsecured term loans | Unsecured term loan two        
Debt Instrument [Line Items]        
Basis spread on variable rate (percent)   1.25%    
Effective rate (percent)   5.00%    
Principal   $ 150,000 0  
Book Value   148,047 0  
Tanger Properties Limited Partnership | Mortgages payable | Atlantic City        
Debt Instrument [Line Items]        
Principal   0 5,705  
Book Value   $ 0 5,760  
Effective interest rate       5.05%
Tanger Properties Limited Partnership | Mortgages payable | Kansas City Outlets        
Debt Instrument [Line Items]        
Effective rate (percent)   6.00%    
Principal   $ 115,000 115,000  
Book Value   $ 117,433 118,317  
Effective interest rate   6.00%    
Tanger Properties Limited Partnership | Mortgages payable | Southaven        
Debt Instrument [Line Items]        
Basis spread on variable rate (percent)   2.00%    
Effective rate (percent)   5.50%    
Principal   $ 61,700 61,700  
Book Value   $ 61,218 61,157  
Portion of mortgage under guarantee (percent)   10.00%    
Tanger Properties Limited Partnership | Mortgages payable | Unsecured lines of credit        
Debt Instrument [Line Items]        
Effective rate (percent)   4.50%    
Tanger Properties Limited Partnership | Unsecured lines of credit        
Debt Instrument [Line Items]        
Unamortized debt issuance costs   $ 4,800 5,700  
Tanger Properties Limited Partnership | Unsecured lines of credit | Unsecured lines of credit        
Debt Instrument [Line Items]        
Basis spread on variable rate (percent)   0.85%    
Principal   $ 0 44,000  
Book Value   $ 0 $ 44,000  
Tanger Properties Limited Partnership | Minimum | Mortgages payable | Atlantic City        
Debt Instrument [Line Items]        
Fixed interest rate (percent)   6.44%    
Tanger Properties Limited Partnership | Minimum | Mortgages payable | Kansas City Outlets        
Debt Instrument [Line Items]        
Fixed interest rate (percent)   7.57%