Annual report pursuant to Section 13 and 15(d)

Equity-Based Compensation - Outperformance Plan Rollforward (Details)

v3.20.4
Equity-Based Compensation - Outperformance Plan Rollforward (Details) - Tanger Factory Outlet Centers, Inc. [Member] - Performance Shares [Member] - $ / shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Number of units      
Beginning balance 1,123,904 1,013,383 603,411
Awarded 902,167 531,827 409,972
Earned 0 0 0
Forfeited (316,297) (421,306) 0
Ending balance 1,709,774 1,123,904 1,013,383
Weighted-average grant date fair value      
Beginning balance (in dollars per share) $ 13.36 $ 14.44 $ 15.83
Awarded (in dollars per share) 6.35 12.09 12.42
Earned (in dollars per share) 0 0 0
Forfeited (in dollars per share) 16.01 14.36 0
Ending balance (in dollars per share) $ 9.17 $ 13.36 $ 14.44