Annual report pursuant to Section 13 and 15(d)

Equity-Based Compensation - Options Awards Activity (Details)

v3.20.4
Equity-Based Compensation - Options Awards Activity (Details) - Tanger Factory Outlet Centers, Inc. [Member] - USD ($)
1 Months Ended 12 Months Ended
Sep. 30, 2020
Feb. 28, 2018
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Shares          
Beginning balance     523,300 534,500 231,200
Granted     1,334,500 0 331,000
Exercised     0 0 0
Forfeited     (52,100) (11,200) (27,700)
Ending balance     1,805,700 523,300 534,500
Weighted-average exercise price          
Beginning balance (in dollars per share)     $ 25.57 $ 25.56 $ 30.42
Granted (in dollars per share)     0 0 21.94
Exercised (in dollars per share)     0 0 0
Forfeited (in dollars per share)     0 25.27 22.62
Ending balance (in dollars per share)     $ 11.69 $ 25.57 $ 25.56
Weighted-average remaining contractual life in years, outstanding     8 years 3 months 18 days 6 years 21 days 7 years 29 days
Aggregate intrinsic value, outstanding     $ 0 $ 0 $ 0
Vested and Expected to Vest          
Vested and Expected to Vest, Shares     1,734,077    
Vested and Expected to Vest, Weighted-average exercise price (in dollars per share)     $ 11.83    
Vested and Expected to Vest, Weighted-average remaining contractual life in years     8 years 3 months 3 days    
Vested and Expected to Vest, Aggregate intrinsic value     $ 0    
Exercisable          
Exercisable, Shares     560,300    
Exercisable, Weighted-average exercise price (in dollars per share)     $ 18.38    
Exercisable, Weighted-average remaining contractual life in years     6 years 4 months 9 days    
Exercisable, Aggregate intrinsic value     $ 0    
Share-based Payment Arrangement, Option [Member]          
Shares          
Granted 334,500 331,000      
Weighted-average exercise price          
Granted (in dollars per share) $ 5.73 $ 21.94