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Long-Term Borrowings - Summary of Long-term Borrowings (Parenthetical) (Details)
¥ in Thousands, $ in Thousands
12 Months Ended
Feb. 28, 2025
CNY (¥)
Feb. 28, 2025
USD ($)
Feb. 29, 2024
CNY (¥)
Feb. 28, 2023
CNY (¥)
Feb. 28, 2025
USD ($)
Debt Instrument [Line Items]          
Interest expense ¥ 16,200 $ 2,224 ¥ 7,235 ¥ 2,284  
Property and equipment, net 125,228   66,069   $ 17,195
China Merchants Bank          
Debt Instrument [Line Items]          
Uncommitted credit facility 110,000        
Domestic fixed assets loan 90,000        
Line of credit, amount 82,134       11,278
Restricted cash ¥ 127,449       17,500
Line of credit, maturity date December, 2030 December, 2030      
Interest expense ¥ (2,155) $ (296) (142) 0  
Interest income capitalized in property and equipment 990   ¥ 142 ¥ 0 136
Repayment Amount 82,134 11,278      
China Merchants Bank | 3.60% Effective Interest Rate          
Debt Instrument [Line Items]          
Line of credit, amount ¥ 1,319       $ 181
Effective interest rate 3.60%       3.60%
China Merchants Bank | 3.40% Effective Interest Rate          
Debt Instrument [Line Items]          
Line of credit, amount ¥ 61,280       $ 8,415
Effective interest rate 3.40%       3.40%
China Merchants Bank | 3.35% Effective Interest Rate          
Debt Instrument [Line Items]          
Line of credit, amount ¥ 19,535       $ 2,682
Effective interest rate 3.35%       3.35%
China Merchants Bank | June 25, 2026          
Debt Instrument [Line Items]          
Repayment Amount ¥ 2,107 289      
China Merchants Bank | July 25, 2026          
Debt Instrument [Line Items]          
Repayment Amount 2,000 275      
China Merchants Bank | December 25, 2026          
Debt Instrument [Line Items]          
Repayment Amount 2,107 289      
China Merchants Bank | January 25, 2027          
Debt Instrument [Line Items]          
Repayment Amount 2,000 275      
China Merchants Bank | June 25, 2027          
Debt Instrument [Line Items]          
Repayment Amount 2,107 289      
China Merchants Bank | July 25, 2027          
Debt Instrument [Line Items]          
Repayment Amount 2,000 275      
China Merchants Bank | December 25, 2027          
Debt Instrument [Line Items]          
Repayment Amount 2,107 289      
China Merchants Bank | January 25, 2028          
Debt Instrument [Line Items]          
Repayment Amount 2,000 275      
China Merchants Bank | June 25, 2028          
Debt Instrument [Line Items]          
Repayment Amount 2,107 289      
China Merchants Bank | July 25, 2028          
Debt Instrument [Line Items]          
Repayment Amount 2,000 275      
China Merchants Bank | December 25, 2028          
Debt Instrument [Line Items]          
Repayment Amount 2,107 289      
China Merchants Bank | January 25, 2029          
Debt Instrument [Line Items]          
Repayment Amount 2,000 275      
China Merchants Bank | June 25, 2029          
Debt Instrument [Line Items]          
Repayment Amount 2,107 289      
China Merchants Bank | July 25, 2029          
Debt Instrument [Line Items]          
Repayment Amount 2,000 275      
China Merchants Bank | December 25, 2029          
Debt Instrument [Line Items]          
Repayment Amount 2,107 289      
China Merchants Bank | January 25, 2030          
Debt Instrument [Line Items]          
Repayment Amount 2,000 275      
China Merchants Bank | June 25, 2030          
Debt Instrument [Line Items]          
Repayment Amount 2,107 289      
China Merchants Bank | July 25, 2030          
Debt Instrument [Line Items]          
Repayment Amount 2,000 275      
China Merchants Bank | December 15, 2030          
Debt Instrument [Line Items]          
Repayment Amount ¥ 45,171 $ 6,202