Quarterly report pursuant to Section 13 or 15(d)

Equity-Based Compensation of the Company (Narrative) (Details)

v3.20.2
Equity-Based Compensation of the Company (Narrative) (Details) - Tanger Factory Outlet Centers, Inc. [Member] - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 9 Months Ended
Sep. 30, 2020
Apr. 30, 2020
Feb. 29, 2020
Sep. 30, 2020
Sep. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares paid for tax withholding for share based compensation (in shares)       56,597 81,284
Payment, Tax Withholding, Share-based Payment Arrangement       $ 736 $ 1,781
Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Options granted 334,500        
Exercise price $ 5.73        
Options expire (in years) 10 years        
Vesting percentage 20.00%        
Vesting period 5 years        
Vesting commencement period 1 year        
Weighted average grant date fair value $ 1.03     $ 1.03  
Expected Dividend Rate 4.93%        
Expected life 6 years 6 months        
Expected Volatility Rate 34.39%        
Risk Free Interest Rate 0.48%        
Forfeiture Rate Used 7.20%        
Performance Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares/Units, granted (in shares/units)     697,000    
President and COO [Member] | Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Options granted   1,000,000.0      
Exercise price   $ 7.15      
Options expire (in years)   10 years      
Vesting percentage   25.00%      
Weighted average grant date fair value   $ 0.42      
Expected Dividend Rate   9.86%      
Expected life   7 years 10 months 24 days      
Expected Volatility Rate   30.00%      
Risk Free Interest Rate   0.60%      
Forfeiture Rate Used   0.00%      
Restricted Common Share Award Plan [Member] | Restricted common shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares/Units, granted (in shares/units)     399,000    
Lower limit, grant date fair value (in dollars per share)     $ 12.03    
Upper limit, grant date fair value (in dollars per share)     $ 13.75    
Restricted Common Share Award Plan [Member] | President and COO [Member] | Restricted common shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting percentage   33.00%      
Vesting period   3 years      
Shares/Units, granted (in shares/units)   389,308      
Grant Date Fair Value   $ 7.15      
Restricted Common Share Award Plan [Member] | Director [Member] | Restricted common shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period       3 years  
Restricted Common Share Award Plan [Member] | Senior Executive Officers [Member] | Restricted common shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period       3 years  
Restricted Common Share Award Plan [Member] | Chief Executive Officer [Member] | Restricted common shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based compensation arrangement award holding period       3 years  
2020 OPP [Member] | Performance Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Expected Dividend Rate       8.40%  
Expected Volatility Rate       29.00%  
Risk Free Interest Rate       1.40%  
Share-based Award Measurement Period       3 years  
2020 OPP [Member] | Vesting immediately [Member] | Performance Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting percentage     50.00%    
2020 OPP [Member] | Vesting one year thereafter [Member] | Performance Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting percentage     50.00%    
2020 OPP [Member] | President and COO [Member] | Performance Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares/Units, granted (in shares/units)   205,480