Quarterly report pursuant to Section 13 or 15(d)

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

v3.21.2
Equity-Based Compensation of the Company (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Aug. 31, 2021
Feb. 28, 2021
Sep. 30, 2021
Sep. 30, 2021
Sep. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Withholding of common shares for employee income taxes (in shares)       121,000 57,000
Employee income taxes paid related to shares withheld upon vesting of equity awards       $ 1,800 $ 736
Tanger Factory Outlet Centers, Inc. [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Withholding of common shares for employee income taxes (in shares)     8,756 120,733 56,597
Employee income taxes paid related to shares withheld upon vesting of equity awards       $ 1,787 $ 736
Tanger Factory Outlet Centers, Inc. [Member] | 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) 23,000 385,000      
Grant Date Fair Value of Awards (per share) $ 17.09 $ 14.60      
Tanger Factory Outlet Centers, Inc. [Member] | Restricted Common Share Award Plan [Member] | Restricted common shares [Member] | Director [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period   3 years      
Tanger Factory Outlet Centers, Inc. [Member] | Restricted Common Share Award Plan [Member] | Restricted common shares [Member] | Senior Executive Officers [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period 3 years 3 years      
Tanger Factory Outlet Centers, Inc. [Member] | 2021 PSP | Performance Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares/Units, granted (in shares/units) 26,000 642,000      
Grant Date Fair Value of Awards (per share) $ 12.44 $ 9.65      
Share-based Award Measurement Period   3 years      
Tanger Factory Outlet Centers, Inc. [Member] | 2021 PSP | Vesting immediately [Member] | Performance Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting percentage   50.00%      
Tanger Factory Outlet Centers, Inc. [Member] | 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%      
Tanger Factory Outlet Centers, Inc. [Member] | 2018 OPP | Performance Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Award Measurement Period   3 years      
Tanger Factory Outlet Centers, Inc. [Member] | 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 (in shares)   76,478      
Tanger Factory Outlet Centers, Inc. [Member] | 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 (in shares)   0      
Tanger Factory Outlet Centers, Inc. [Member] | 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 (in shares)   43,127      
Tanger Factory Outlet Centers, Inc. [Member] | 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 (in shares)   33,351