Annual report pursuant to Section 13 and 15(d)

Equity-Based Compensation - The Plan Narrative (Details)

v3.20.4
Equity-Based Compensation - The Plan Narrative (Details)
$ in Millions
12 Months Ended
Dec. 31, 2020
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 | $ $ 16.7
Weighted-average period over cost is expected to be recognized related to unvested common equity-based compensation arrangements 2 years 10 months 24 days
Tanger Factory Outlet Centers, Inc. [Member] | Share-based Payment Arrangement, Option [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of common shares that may be issued (in shares) 18,700,000
Shares remaining available for future issuance (in shares) 2,608,000