Annual report pursuant to Section 13 and 15(d)

Equity-Based Compensation - Outperformance Plan (Details)

v3.10.0.1
Equity-Based Compensation - Outperformance Plan (Details) - Tanger Factory Outlet Centers, Inc. [Member] - Performance Shares [Member] - $ / shares
1 Months Ended 12 Months Ended
Jan. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Granted (in dollars per share)   $ 12.42 $ 16.60 $ 15.10    
Granted   409,972 296,400 321,900    
Vested   0 184,455      
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    
2015 OPP [Member]            
Maximum number of restricted common shares that may be earned         306,600  
Granted (in dollars per share)         $ 15.85  
2014 OPP [Member]            
Maximum number of restricted common shares that may be earned           329,700
Granted (in dollars per share)           $ 14.71
Absolute portion [Member] | 2018 OPP [Member]            
Percent of total award   33.30%        
Absolute portion [Member] | 2017 OPP [Member]            
Percent of total award     50.00%      
Absolute portion [Member] | 2016 OPP [Member]            
Percent of total award       50.00%    
Absolute portion [Member] | 2015 OPP [Member]            
Percent of total award         60.00%  
Absolute portion [Member] | 2014 OPP [Member]            
Percent of total award           70.00%
Granted 184,000          
Relative portion of award [Member] | 2018 OPP [Member]            
Percent of total award   66.70%        
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%    
Relative portion of award [Member] | 2015 OPP [Member]            
Percent of total award         40.00%  
Relative portion of award [Member] | 2014 OPP [Member]            
Percent of total award           30.00%
Minimum [Member] | Absolute portion [Member] | 2018 OPP [Member]            
Absolute share price appreciation range   19.10%        
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] | Absolute portion [Member] | 2015 OPP [Member]            
Absolute share price appreciation range         25.00%  
Percentage of units to be earned         33.00%  
Minimum [Member] | Absolute portion [Member] | 2014 OPP [Member]            
Absolute share price appreciation range           25.00%
Percentage of units to be earned           33.00%
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%    
Minimum [Member] | Relative portion of award [Member] | 2015 OPP [Member]            
Percentage of units to be earned         33.00%  
Threshold Percentage for Performance Target         50.00%  
Minimum [Member] | Relative portion of award [Member] | 2014 OPP [Member]            
Percentage of units to be earned           33.00%
Threshold Percentage for Performance Target           50.00%
Maximum [Member] | Absolute portion [Member] | 2018 OPP [Member]            
Absolute share price appreciation range   29.50%        
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] | Absolute portion [Member] | 2015 OPP [Member]            
Absolute share price appreciation range         35.00%  
Percentage of units to be earned         100.00%  
Maximum [Member] | Absolute portion [Member] | 2014 OPP [Member]            
Absolute share price appreciation range           35.00%
Percentage of units to be earned           100.00%
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%    
Maximum [Member] | Relative portion of award [Member] | 2015 OPP [Member]            
Percentage of units to be earned         100.00%  
Threshold Percentage for Performance Target         70.00%  
Maximum [Member] | Relative portion of award [Member] | 2014 OPP [Member]            
Percentage of units to be earned           100.00%
Threshold Percentage for Performance Target           70.00%
Immediately following measurement period [Member] | Absolute portion [Member] | 2014 OPP [Member]            
Vested 94,000          
One year after measurement period [Member] | Absolute portion [Member] | 2014 OPP [Member]            
Vested 90,000