Quarterly report pursuant to Section 13 or 15(d)

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

v3.21.1
Equity-Based Compensation of the Company (Narrative) (Details) - Tanger Factory Outlet Centers, Inc. [Member] - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended
Feb. 28, 2021
Mar. 31, 2021
Mar. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares paid for tax withholding for share based compensation (in shares)   111,977 56,597
Payment, Tax Withholding, Share-based Payment Arrangement   $ 1,637 $ 736
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) 385,000    
Granted (in dollars per share) $ 14.60    
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    
2018 OPP | Performance Shares [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Award Measurement Period 3 years    
2018 OPP | Performance Shares [Member] | Relative portion of award [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares issued in period 76,478    
2018 OPP | Performance Shares [Member] | Absolute portion of award [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares issued in period 0    
2018 OPP | Vesting immediately [Member] | Performance Shares [Member] | Relative portion of award [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares issued in period 43,127    
2018 OPP | Vesting one year thereafter [Member] | Performance Shares [Member] | Relative portion of award [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares issued in period 33,351    
2021 PSP | Performance Shares [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares/Units, granted (in shares/units) 642,000    
Granted (in dollars per share)   $ 9.65  
Share-based Award Measurement Period 3 years    
2021 PSP | Vesting immediately [Member] | Performance Shares [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting percentage 50.00%    
2021 PSP | Vesting one year thereafter [Member] | Performance Shares [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting percentage 50.00%