Annual report pursuant to Section 13 and 15(d)

Equity-Based Compensation - The Plan Narrative (Details)

v3.8.0.1
Equity-Based Compensation - The Plan Narrative (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2017
USD ($)
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exchange Ratio of Partnership Units for Common Shares 1
Tanger Factory Outlet Centers, Inc. [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Compensation Cost Not yet Recognized | $ $ 23.2
Weighted-average period over cost is expected to be recognized related to unvested common equity-based compensation arrangements 1 year 11 months
Tanger Factory Outlet Centers, Inc. [Member] | Employee Stock Option [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of common shares that may be issued (in shares) 15,400,000.0
Total Options Granted, to Date, Net of Forfeitures (in shares) 7,534,560
Total Restricted Shares Granted, To Date, Net of Forfeitures (in shares) 5,365,728
Total Number of Common Shares The Could Be Issued Upon Vesting of Notional Units Granted (in shares) 603,411
Shares remaining available for future issuance (in shares) 1,896,301