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Share-Based Compensation - Summary of Aggregate Options Activity and Information Regarding Options Outstanding (Details)
¥ / shares in Units, ¥ in Thousands, shares in Thousands
12 Months Ended
Jan. 22, 2019
$ / shares
Feb. 28, 2023
¥ / shares
shares
Feb. 28, 2022
¥ / shares
shares
Feb. 28, 2021
CNY (¥)
¥ / shares
shares
Share-Based Payment Arrangement [Abstract]        
Number of Options, Options outstanding, Beginning of period | shares   3,898 4,090  
Number of Options, Forfeited | shares   (93) (122)  
Number of Options, Expired | shares   (592) (70)  
Number of Options, Options outstanding, End of period | shares   3,213 3,898 4,090
Number of Options, Options vested or expected to vest | shares   3,213    
Number of Options, Options exercisable | shares   2,790    
Weighted Average Exercise Price, Options outstanding, Beginning of period | ¥ / shares   ¥ 14.49 ¥ 14.96  
Weighted Average Exercise Price, Granted | $ / shares $ 4.6      
Weighted Average Exercise Price, Forfeited | ¥ / shares   25.46 27.12  
Weighted Average Exercise Price, Expired | ¥ / shares   13.60 19.91  
Weighted Average Exercise Price, Options outstanding, End of period | ¥ / shares   14.34 ¥ 14.49 ¥ 14.96
Weighted Average Exercise Price, Options vested or expected to vest | ¥ / shares   14.34    
Weighted Average Exercise Price, Options exercisable | ¥ / shares   ¥ 13.92    
Weighted Average Remaining Contract Life (Years), Options outstanding   4 years 10 months 28 days 5 years 10 months 28 days 6 years 11 months 8 days
Weighted Average Remaining Contract Life (Years), Forfeited   7 years 7 months 28 days 8 years 5 months 8 days  
Weighted Average Remaining Contract Life (Years), Expired   4 years 6 months 25 days 5 years 5 months 4 days  
Weighted Average Remaining Contract Life (Years), Options vested or expected to vest   4 years 11 months 26 days    
Weighted Average Remaining Contract Life (Years), Options exercisable   4 years 6 months 21 days    
Aggregate Intrinsic Value, Options outstanding | ¥       ¥ 29,428