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Income Taxes - Additional Information (Details)
$ in Thousands
 12 Months Ended 60 Months Ended
Feb. 28, 2025
CNY (¥)
Feb. 28, 2025
USD ($)
Feb. 28, 2025
HKD ($)
Feb. 29, 2024
CNY (¥)
Feb. 28, 2023
CNY (¥)
Dec. 31, 2022
CNY (¥)
Dec. 31, 2027
CNY (¥)
Feb. 28, 2025
USD ($)
Feb. 29, 2024
USD ($)
Income Taxes [Line Items]                  
Income tax rate, percent 25.00% 25.00% 25.00% 25.00% 25.00%        
Unrecognized tax benefits ¥ 18,859,000     ¥ 15,313,000 ¥ 15,313,000     $ 2,590 $ 2,103
Income tax provision 722,000 $ 99   1,101,000 993,000        
Deferred tax assets, valuation allowance 25,967,000     35,196,000 30,521,000     3,566 4,834
Unrecognized tax benefits ¥ 18,859,000     15,313,000 15,313,000     2,590 $ 2,103
Minimum                  
Income Taxes [Line Items]                  
Percentage of temporary differences interest in domestic subsidiary included in deferred tax liability 50.00% 50.00% 50.00%            
Inland Revenue, Hong Kong | Foreign Tax Authority                  
Income Taxes [Line Items]                  
Tax loss carry-forward not subject to expiration ¥ 15,190,000             2,086  
Inland Revenue, Hong Kong | Foreign Tax Authority | Four Seasons Hong Kong                  
Income Taxes [Line Items]                  
Profit limit to determine lower tax rate | $     $ 2,000            
Percentage of lower tax rate on the basis of profit 8.25% 8.25% 8.25%            
Income tax rate, percent 16.50% 16.50% 16.50%            
Assessable income ¥ 0     0 0        
State Administration of Taxation, PRC | Foreign Tax Authority                  
Income Taxes [Line Items]                  
Income tax rate, percent 25.00% 25.00% 25.00%            
Income tax provision ¥ 722,000 $ 99   1,101,000 ¥ 993,000        
Tax loss carry-forward subject to expiration 56,365,000             7,739  
Deferred tax assets, valuation allowance ¥ 25,967,000     35,196,000       3,566  
Period of statute of limitations for underpayment of taxes due to computational errors made by the taxpayer or the withholding agent 3 years 3 years 3 years            
Period of statute of limitations for underpayment of taxes more than specified amount 5 years 5 years 5 years            
Minimum amount of underpayment of taxes for statute of limitation to be extended to five years under special circumstance ¥ 100,000                
Period of statute of limitations for related party transaction 10 years 10 years 10 years            
Tax reduction, Description In accordance with the EIT Law, dividends, which arise from profits of foreign invested enterprises (“FIEs”) earned after January 1, 2008, are subject to a 10% withholding income tax. In addition, under tax treaty between the PRC and Hong Kong, if the foreign investor is incorporated in Hong Kong and qualifies as the beneficial owner, the applicable withholding tax rate is reduced to 5%, if the investor holds at least 25% in the FIE, or 10%, if the investor holds less than 25% in the FIE. In accordance with the EIT Law, dividends, which arise from profits of foreign invested enterprises (“FIEs”) earned after January 1, 2008, are subject to a 10% withholding income tax. In addition, under tax treaty between the PRC and Hong Kong, if the foreign investor is incorporated in Hong Kong and qualifies as the beneficial owner, the applicable withholding tax rate is reduced to 5%, if the investor holds at least 25% in the FIE, or 10%, if the investor holds less than 25% in the FIE. In accordance with the EIT Law, dividends, which arise from profits of foreign invested enterprises (“FIEs”) earned after January 1, 2008, are subject to a 10% withholding income tax. In addition, under tax treaty between the PRC and Hong Kong, if the foreign investor is incorporated in Hong Kong and qualifies as the beneficial owner, the applicable withholding tax rate is reduced to 5%, if the investor holds at least 25% in the FIE, or 10%, if the investor holds less than 25% in the FIE.            
Withholding income tax percentage if investor holds less than 25% in the FIE 10.00% 10.00% 10.00%            
Reduced withholding tax rate, if investor holds at least 25% in the FIE 5.00% 5.00% 5.00%            
Minimum percentage of FIEs holding for reduction in withholding income tax rate 25.00% 25.00% 25.00%            
Withholding income taxes, undistributed earnings of foreign subsidiaries ¥ 0     0          
Deferred tax assets on tax losses carry forward ¥ 27,492,000     ¥ 36,321,000       $ 3,775  
State Administration of Taxation, PRC | Foreign Tax Authority | Minimum                  
Income Taxes [Line Items]                  
Tax loss carry-forward expiration year 2026 2026 2026            
State Administration of Taxation, PRC | Foreign Tax Authority | Maximum                  
Income Taxes [Line Items]                  
Tax loss carry-forward expiration year 2030 2030 2030            
State Administration of Taxation, PRC | Foreign Tax Authority | Shanghai Fuxi                  
Income Taxes [Line Items]                  
Taxable income limit low           ¥ 1,000,000      
Tax reduction term percentage low           12.50%      
Tax reduction term percentage high           25.00%      
Effective tax rate           20.00%      
State Administration of Taxation, PRC | Foreign Tax Authority | Shanghai Fuxi | Forecast                  
Income Taxes [Line Items]                  
Taxable income limit low             ¥ 3,000,000    
Tax reduction term percentage low             25.00%    
Effective tax rate             20.00%    
State Administration of Taxation, PRC | Foreign Tax Authority | Shanghai Fuxi | Minimum                  
Income Taxes [Line Items]                  
Taxable income limit           ¥ 1,000,000      
State Administration of Taxation, PRC | Foreign Tax Authority | Shanghai Fuxi | Maximum                  
Income Taxes [Line Items]                  
Taxable income limit           ¥ 3,000,000