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Summary of Significant Accounting Policies - Additional Information (Details)
 12 Months Ended
Feb. 29, 2024
CNY (¥)
Feb. 29, 2024
USD ($)
Feb. 28, 2023
CNY (¥)
Feb. 28, 2023
USD ($)
Feb. 28, 2022
CNY (¥)
Feb. 28, 2022
USD ($)
Feb. 29, 2024
USD ($)
Feb. 28, 2023
USD ($)
Feb. 28, 2021
CNY (¥)
Significant Accounting Policies [Line Items]                  
Cash and cash equivalents and restricted cash denominated in RMB ¥ 302,246,000   ¥ 177,058,000   ¥ 272,702,000   $ 41,992,000 $ 24,599,000 ¥ 389,213,000
Foreign currency translation exchange rate 7.1977           7.1977    
Cash and cash equivalents ¥ 180,198,000   175,696,000   262,429,000   $ 25,035,000    
Restricted cash 122,048,000   1,362,000       16,957,000    
Unrealized holding gain (loss) in investments 3,910,000 $ 543,000 (3,794,000)   (2,855,000)        
Realized gain (loss) in investments 3,207,000 446,000 1,867,000   1,749,000        
Impairment of investments 0   0   35,584,000        
Impairment loss for equity investments without readily determinable fair value 500,000 69,000 0   0        
Impairment loss on intangible asset 0   0   2,255,000        
Impairment loss of property and equipment recognized 3,674,000 510,000 0   7,871,000        
Loss from goodwill impairment 0   0   42,307,000        
Refund liability 454,000   408,000       63,000    
Contract assets 0   0            
Contract liabilities 18,023,000   7,269,000   6,492,000   2,504,000 $ 1,010,000 ¥ 75,242,000
Advertising expenses ¥ 4,417,000 $ 614,000 2,708,000   15,579,000        
Operating lease, option to extend The Group’s leases have lease terms of up to fifteen years, which includes lessee options to extend the lease, only to the extent it is reasonably certain that the Group will exercise such extension options. The Group’s leases have lease terms of up to fifteen years, which includes lessee options to extend the lease, only to the extent it is reasonably certain that the Group will exercise such extension options.              
Operating lease impairment ¥ 0 $ 0 0 $ 0 0 $ 0      
Income recognized from government subsidies ¥ 728,000 $ 101,000 1,412,000   ¥ 2,298,000        
Description of uncertain income tax position An uncertain income tax position will not be recognized if it has less than a 50% likelihood of being sustained. An uncertain income tax position will not be recognized if it has less than a 50% likelihood of being sustained.              
Restricted Cash under Government Regulations                  
Significant Accounting Policies [Line Items]                  
Restricted cash ¥ 576,000   1,362,000       81,000    
Restricted Cash as Guarantee Deposits for Long-term Borrowings                  
Significant Accounting Policies [Line Items]                  
Restricted cash ¥ 121,472,000   0       $ 16,876,000    
Maximum                  
Significant Accounting Policies [Line Items]                  
Operating lease, lease term 12 months           12 months    
Amount Due from Related Parties and Other Non-current Assets                  
Significant Accounting Policies [Line Items]                  
Allowance for doubtful accounts ¥ 4,755,000 $ 661,000 ¥ 7,038,000            
VIEs                  
Significant Accounting Policies [Line Items]                  
Percentage of revenue contributed of consolidated revenue 99.30% 99.30% 97.60% 97.60% 100.00% 100.00%      
Percentage of assets accounted of audited consolidated assets 13.60%   17.00%       13.60% 17.00%  
Percentage of liabilities accounted of audited consolidated liabilities 65.00%   91.50%       65.00% 91.50%  
Assets held only to settle obligations ¥ 0                
Cash and cash equivalents and restricted cash denominated in RMB ¥ 102,503,000   ¥ 70,628,000       $ 14,241,000