Quarterly report pursuant to Section 13 or 15(d)

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

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Equity-Based Compensation of the Company (Equity-Based Compensation Expense) (Details) - Tanger Factory Outlet Centers, Inc. [Member] - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Equity-based compensation $ 3,407 $ 3,318 $ 10,814 $ 10,114
Restricted common shares [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Equity-based compensation 2,275 2,302 7,359 7,039
Notional unit performance awards [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Equity-based compensation 1,040 939 3,141 2,870
Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Equity-based compensation $ 92 $ 77 $ 314 $ 205