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Income Taxes - Summary of Reconciliations of Difference Between PRC Statutory Income Tax Rate and Group's Effective Income Tax Rate (Details)
12 Months Ended
Feb. 28, 2023
Feb. 28, 2022
Feb. 28, 2021
Income Tax Disclosure [Abstract]      
Statutory income tax rate 25.00% 25.00% 25.00%
Non-deductible expenses 4.00% (12.00%) (32.00%)
Effect of preferential tax rate (3.00%) (5.00%) 8.00%
Effect of different tax rate of subsidiary operation in other jurisdiction (13.00%) (6.00%) (7.00%)
Effect of tax rate change (6.00%)    
Effect of valuation allowance (10.00%) (38.00%) (19.00%)
Effective tax rate (3.00%) (36.00%) (25.00%)