Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.1
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. 29, 2020
Feb. 19, 2020
Mar. 31, 2020
Mar. 31, 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
Performance Shares [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares/Units, granted (in shares/units)   697,000    
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] | 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]        
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%