Annual report pursuant to Section 13 and 15(d)

Equity-Based Compensation - Outperformance Plan (Details)

v3.20.4
Equity-Based Compensation - Outperformance Plan (Details) - Tanger Factory Outlet Centers, Inc. [Member] - Performance Shares [Member] - $ / shares
1 Months Ended 12 Months Ended
Apr. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Granted (in dollars per share)   $ 6.35 $ 12.09 $ 12.42    
Granted   902,167 531,827 409,972    
2020 OPP [Member]            
Maximum number of restricted common shares that may be earned   902,167        
Granted (in dollars per share) $ 3.11 $ 7.30        
2020 OPP [Member] | Chief Operating Officer [Member]            
Granted 205,480          
2019 OPP [Member]            
Maximum number of restricted common shares that may be earned     531,827      
Granted (in dollars per share)     $ 12.09      
2018 OPP [Member]            
Maximum number of restricted common shares that may be earned       409,972    
Granted (in dollars per share)       $ 12.42    
2017 OPP [Member]            
Maximum number of restricted common shares that may be earned         296,400  
Granted (in dollars per share)         $ 16.60  
2016 OPP [Member]            
Maximum number of restricted common shares that may be earned           321,900
Granted (in dollars per share)           $ 15.10
Absolute portion [Member] | 2020 OPP [Member]            
Percent of total award   33.00%        
Absolute portion [Member] | 2019 OPP [Member]            
Percent of total award     33.00%      
Absolute portion [Member] | 2018 OPP [Member]            
Percent of total award       33.00%    
Absolute portion [Member] | 2017 OPP [Member]            
Percent of total award         50.00%  
Absolute portion [Member] | 2016 OPP [Member]            
Percent of total award           50.00%
Relative portion of award [Member] | 2020 OPP [Member]            
Percent of total award   67.00%        
Relative portion of award [Member] | 2019 OPP [Member]            
Percent of total award     67.00%      
Relative portion of award [Member] | 2018 OPP [Member]            
Percent of total award       67.00%    
Relative portion of award [Member] | 2017 OPP [Member]            
Percent of total award         50.00%  
Relative portion of award [Member] | 2016 OPP [Member]            
Percent of total award           50.00%
Minimum [Member] | Absolute portion [Member] | 2020 OPP [Member]            
Absolute share price appreciation range   37.00%        
Percentage of units to be earned   20.00%        
Minimum [Member] | Absolute portion [Member] | 2019 OPP [Member]            
Absolute share price appreciation range     19.00%      
Percentage of units to be earned     20.00%      
Minimum [Member] | Absolute portion [Member] | 2018 OPP [Member]            
Absolute share price appreciation range       19.00%    
Percentage of units to be earned       20.00%    
Minimum [Member] | Absolute portion [Member] | 2017 OPP [Member]            
Absolute share price appreciation range         18.00%  
Percentage of units to be earned         20.00%  
Minimum [Member] | Absolute portion [Member] | 2016 OPP [Member]            
Absolute share price appreciation range           18.00%
Percentage of units to be earned           20.00%
Minimum [Member] | Relative portion of award [Member] | 2020 OPP [Member]            
Percentage of units to be earned   20.00%        
Threshold Percentage for Performance Target   30.00%        
Minimum [Member] | Relative portion of award [Member] | 2019 OPP [Member]            
Percentage of units to be earned     20.00%      
Threshold Percentage for Performance Target     30.00%      
Minimum [Member] | Relative portion of award [Member] | 2018 OPP [Member]            
Percentage of units to be earned       20.00%    
Threshold Percentage for Performance Target       30.00%    
Minimum [Member] | Relative portion of award [Member] | 2017 OPP [Member]            
Percentage of units to be earned         20.00%  
Threshold Percentage for Performance Target         40.00%  
Minimum [Member] | Relative portion of award [Member] | 2016 OPP [Member]            
Percentage of units to be earned           20.00%
Threshold Percentage for Performance Target           40.00%
Maximum [Member] | Absolute portion [Member] | 2020 OPP [Member]            
Absolute share price appreciation range   52.00%        
Percentage of units to be earned   100.00%        
Maximum [Member] | Absolute portion [Member] | 2019 OPP [Member]            
Absolute share price appreciation range     30.00%      
Percentage of units to be earned     100.00%      
Maximum [Member] | Absolute portion [Member] | 2018 OPP [Member]            
Absolute share price appreciation range       30.00%    
Percentage of units to be earned       100.00%    
Maximum [Member] | Absolute portion [Member] | 2017 OPP [Member]            
Absolute share price appreciation range         35.00%  
Percentage of units to be earned         100.00%  
Maximum [Member] | Absolute portion [Member] | 2016 OPP [Member]            
Absolute share price appreciation range           35.00%
Percentage of units to be earned           100.00%
Maximum [Member] | Relative portion of award [Member] | 2020 OPP [Member]            
Percentage of units to be earned   100.00%        
Threshold Percentage for Performance Target   80.00%        
Maximum [Member] | Relative portion of award [Member] | 2019 OPP [Member]            
Percentage of units to be earned     100.00%      
Threshold Percentage for Performance Target     80.00%      
Maximum [Member] | Relative portion of award [Member] | 2018 OPP [Member]            
Percentage of units to be earned       100.00%    
Threshold Percentage for Performance Target       80.00%    
Maximum [Member] | Relative portion of award [Member] | 2017 OPP [Member]            
Percentage of units to be earned         100.00%  
Threshold Percentage for Performance Target         70.00%  
Maximum [Member] | Relative portion of award [Member] | 2016 OPP [Member]            
Percentage of units to be earned           100.00%
Threshold Percentage for Performance Target           70.00%