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Short-term Investment And Investments Under Fair Value - Additional Information (Details)
¥ in Thousands, $ in Thousands
12 Months Ended
Feb. 28, 2023
CNY (¥)
Feb. 28, 2023
USD ($)
Feb. 28, 2022
CNY (¥)
Feb. 28, 2021
CNY (¥)
Investments [Abstract]        
Fair value change of investments ¥ 1,927 $ 278 ¥ 1,106 ¥ (2,148)