Quarterly report pursuant to Section 13 or 15(d)

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

v3.8.0.1
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, 2018
Mar. 31, 2018
Mar. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares paid for tax withholding for share based compensation (in shares)   89,437 69,886
Payments Related to Tax Withholding for Share-based Compensation   $ 2,068 $ 2,435
Options [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares/Units, granted (in shares/units) 331,000    
Exercise price $ 21.94    
Options expiration period 10 years    
Vesting percentage 20.00%    
Vesting period 5 years    
Vesting period commencement 1 year    
Grant date fair value $ 3.62    
Expected Dividend Rate 6.24%    
Expected life 7 years 1 month 7 days    
Expected Volatility Rate 32.47%    
Risk Free Interest Rate 2.80%    
Forfeiture Rate Used, Minimum 3.00%    
Forfeiture Rate Used, Maximum 10.00%    
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) 407,156    
Lower limit, grant date fair value (in dollars per share) $ 18.65    
Upper limit, grant date fair value (in dollars per share) $ 21.94    
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] | 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    
Restricted Common Share Award Plan [Member] | Minimum [Member] | 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] | Maximum [Member] | Executive Officers [Member] | Restricted common shares [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 5 years    
2018 OPP [Member] | Performance Shares [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expected Dividend Rate   4.80%  
Expected Volatility Rate   27.00%  
Risk Free Interest Rate   2.40%  
Share-based Award Measurement Period 3 years    
2018 OPP [Member] | Vesting immediately [Member] | Performance Shares [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting percentage 50.00%    
2018 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%    
2018 OPP [Member] | Chief Executive Officer [Member] | Vesting immediately [Member] | Performance Shares [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting percentage 50.00%    
2018 OPP [Member] | Chief Executive Officer [Member] | Vesting one year thereafter [Member] | Performance Shares [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting percentage 50.00%