Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v3.20.1
Subsequent Events (Details) - $ / shares
1 Months Ended 3 Months Ended
Apr. 30, 2020
Feb. 29, 2020
Feb. 19, 2020
Mar. 31, 2020
Subsequent Event [Member]        
Subsequent Event [Line Items]        
Number of years of employment agreement 3 years      
Options [Member] | President and COO [Member] | Tanger Factory Outlet Centers, Inc. [Member] | Subsequent Event [Member]        
Subsequent Event [Line Items]        
Options granted 1,000,000.0      
Exercise price $ 7.15      
Options expire (in years) 10 years      
Weighted average grant date fair value $ 0.42      
Expected Dividend Rate 9.86%      
Expected life 7 years 10 months 24 days      
Expected Volatility Rate 30.44%      
Risk Free Interest Rate 0.60%      
Forfeiture Rate Used 0.00%      
Vesting percentage 25.00%      
Performance Shares [Member] | Tanger Factory Outlet Centers, Inc. [Member]        
Subsequent Event [Line Items]        
Shares/Units, granted (in shares/units)     697,000  
Restricted Common Share Award Plan [Member] | Restricted common shares [Member] | Tanger Factory Outlet Centers, Inc. [Member]        
Subsequent Event [Line Items]        
Shares/Units, granted (in shares/units)   399,000    
Restricted Common Share Award Plan [Member] | Restricted common shares [Member] | President and COO [Member] | Tanger Factory Outlet Centers, Inc. [Member] | Subsequent Event [Member]        
Subsequent Event [Line Items]        
Vesting period 3 years      
Shares/Units, granted (in shares/units) 389,308      
Vesting percentage 33.00%      
Grant Date Fair Value $ 7.15      
2020 OPP [Member] | Performance Shares [Member] | Tanger Factory Outlet Centers, Inc. [Member]        
Subsequent Event [Line Items]        
Expected Dividend Rate       8.40%
Expected Volatility Rate       29.00%
Risk Free Interest Rate       1.40%
2020 OPP [Member] | Performance Shares [Member] | President and COO [Member] | Tanger Factory Outlet Centers, Inc. [Member] | Subsequent Event [Member]        
Subsequent Event [Line Items]        
Shares/Units, granted (in shares/units) 205,480      
Grant Date Fair Value $ 3.11