v3.26.1
SIGNIFICANT ACCOUNTING POLICIES - Additional information (Details)
¥ in Thousands, $ in Thousands
12 Months Ended
Feb. 28, 2026
USD ($)
Feb. 28, 2025
USD ($)
Feb. 29, 2024
USD ($)
Feb. 28, 2026
CNY (¥)
Feb. 28, 2025
CNY (¥)
SIGNIFICANT ACCOUNTING POLICIES          
Debt securities held-to-maturity allowance for credit losses $ 0 $ 0 $ 0    
Impairment loss 0 0 4,840    
Deferred contract cost 16,745 16,347      
Amortization expenses 11,876 8,804 4,698    
Contract liabilities of deferred revenue 882,192 671,227      
Advertising costs 429,461 305,911 147,264    
Foreign currency translation, exchange gain (loss) $ 9,558 $ 3,005 $ (13,355)    
Cash and cash equivalents | ¥       ¥ 1,300,702 ¥ 880,776
Online education services through www.xueersi.com          
SIGNIFICANT ACCOUNTING POLICIES          
VAT (as a percent) 6.00%        
Minimum          
SIGNIFICANT ACCOUNTING POLICIES          
VAT (as a percent) 3.00%        
Minimum | Equity Securities Without Readily Determinable Fair Value          
SIGNIFICANT ACCOUNTING POLICIES          
Ownership percentage (as a percent) 20.00%     20.00%  
Maximum          
SIGNIFICANT ACCOUNTING POLICIES          
VAT (as a percent) 13.00%        
Maximum | Equity Securities Without Readily Determinable Fair Value          
SIGNIFICANT ACCOUNTING POLICIES          
Ownership percentage (as a percent) 50.00%     50.00%