Annual report pursuant to Section 13 and 15(d)

Equity-Based Compensation - Outperformance Plan (Details)

v3.19.3.a.u2
Equity-Based Compensation - Outperformance Plan (Details) - Tanger Factory Outlet Centers, Inc. [Member] - Performance Shares [Member] - $ / shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Granted (in dollars per share) $ 12.09 $ 12.42 $ 16.60    
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  
2015 OPP [Member]          
Maximum number of restricted common shares that may be earned         306,600
Granted (in dollars per share)         $ 15.85
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%  
Absolute portion [Member] | 2015 OPP [Member]          
Percent of total award         60.00%
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%  
Relative portion of award [Member] | 2015 OPP [Member]          
Percent of total award         40.00%
Minimum [Member] | Absolute portion [Member] | 2019 OPP [Member]          
Absolute share price appreciation range 19.00% 19.00% 18.00% 18.00% 25.00%
Percentage of units to be earned 20.00% 20.00% 20.00% 20.00% 33.00%
Minimum [Member] | Relative portion of award [Member] | 2019 OPP [Member]          
Percentage of units to be earned 20.00% 20.00% 20.00% 20.00% 33.00%
Threshold Percentage for Performance Target 30.00% 30.00% 40.00% 40.00% 50.00%
Maximum [Member] | Absolute portion [Member] | 2019 OPP [Member]          
Absolute share price appreciation range 30.00% 30.00% 35.00% 35.00% 35.00%
Percentage of units to be earned 100.00% 100.00% 100.00% 100.00% 100.00%
Maximum [Member] | Relative portion of award [Member] | 2019 OPP [Member]          
Percentage of units to be earned 100.00% 100.00% 100.00% 100.00% 100.00%
Threshold Percentage for Performance Target 80.00% 80.00% 70.00% 70.00% 70.00%