Annual report pursuant to Section 13 and 15(d)

Equity-Based Compensation - Options Awards Narrative (Details)

v3.20.4
Equity-Based Compensation - Options Awards Narrative (Details) - Tanger Factory Outlet Centers, Inc. [Member] - USD ($)
1 Months Ended 12 Months Ended
Sep. 30, 2020
Apr. 30, 2020
Feb. 28, 2018
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Options granted in period       1,334,500 0 331,000
Granted (in dollars per share)       $ 0 $ 0 $ 21.94
Intrinsic value of options exercised during the period       $ 0 $ 0 $ 8,000
Share-based Payment Arrangement, Option [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Options granted in period 334,500   331,000      
Granted (in dollars per share) $ 5.73   $ 21.94      
Option expiration period 10 years   10 years      
Award Vesting Rights, Percentage 20.00%   20.00%      
Expected Dividend Rate 4.93%   6.24%      
Vesting period 5 years   5 years      
Vesting period commencement 1 year   1 year      
Weighted Average Exercise Price $ 1.03   $ 3.62      
Expected life 6 years 6 months   7 years 1 month 6 days      
Expected Volatility Rate 34.39%   32.47%      
Risk Free Interest Rate 0.48%   2.80%      
Forfeiture rate 7.20%          
Forfeiture Rate Used, Minimum     3.00%      
Forfeiture Rate Used, Maximum     10.00%      
Share-based Payment Arrangement, Option [Member] | Chief Operating Officer [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Options granted in period   1,000,000.0        
Granted (in dollars per share)   $ 7.15        
Option expiration period   10 years        
Award Vesting Rights, Percentage   25.00%        
Expected Dividend Rate   9.86%        
Weighted Average Exercise Price   $ 0.42        
Expected life   7 years 10 months 24 days        
Expected Volatility Rate   30.00%        
Risk Free Interest Rate   0.60%        
Forfeiture rate   0.00%