Annual report pursuant to Section 13 and 15(d)

Equity-Based Compensation - Restricted Common Shares Narrative (Details)

v3.19.3.a.u2
Equity-Based Compensation - Restricted Common Shares Narrative (Details) - Tanger Factory Outlet Centers, Inc. [Member] - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Jan. 31, 2017
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares paid for tax withholding for share based compensation (in shares)   131,873 89,437 69,886
Payments for the employees' tax obligations to taxing authorities   $ 2,524 $ 2,068 $ 2,436
Performance Shares [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Granted   531,827 409,972 296,400
Vested   0 0 184,455
Restricted Shares [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total value of restricted common shares vested   $ 9,200 $ 9,200 $ 12,400
Shares paid for tax withholding for share based compensation (in shares)   132,000 89,000 70,000
Payments for the employees' tax obligations to taxing authorities   $ 2,500 $ 2,100 $ 2,400
Restricted Common Share Award Plan [Member] | Restricted Shares [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Granted   309,000 407,000 253,000
Restricted Common Share Award Plan [Member] | Independent director | Restricted 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 | Restricted Shares [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Holding period   3 years    
Restricted Common Share Award Plan [Member] | Minimum [Member] | Senior Executive officer | Restricted Shares [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period   3 years    
Restricted Common Share Award Plan [Member] | Maximum [Member] | Senior Executive officer | Restricted Shares [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period   5 years    
Absolute portion [Member] | 2014 OPP [Member] | Performance Shares [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Granted 184,000      
Year one [Member] | Absolute portion [Member] | 2014 OPP [Member] | Performance Shares [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vested 94,000      
Year two [Member] | Absolute portion [Member] | 2014 OPP [Member] | Performance Shares [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vested 90,000