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Ordinary Share - Additional Information (Detail)
$ / shares in Units, ¥ in Thousands, $ in Millions
1 Months Ended 12 Months Ended
Feb. 28, 2021
USD ($)
shares
Oct. 31, 2020
USD ($)
shares
$ / shares
Mar. 31, 2022
$ / shares
shares
Mar. 31, 2021
CNY (¥)
shares
Mar. 31, 2021
$ / shares
shares
Number of shares per ADS   0.75      
Proceeds from IPO   $ 64.0   ¥ 393,698  
Common Class A [Member]          
Common Stock, Shares, Issued     55,709,591   54,505,108
Common Stock, Shares, Outstanding     55,709,591   54,505,108
stock issued during period   5,250,000      
Common Stock, Par or Stated Value Per Share | $ / shares     $ 0.001   $ 0.001
Common Class B [Member]          
Common Stock, Shares, Issued     13,037,729   13,037,729
Common Stock, Shares, Outstanding     13,037,729   13,037,729
Common Stock, Par or Stated Value Per Share | $ / shares   $ 0.001 $ 0.001   $ 0.001
Preferred Stock, Conversion Basis     one-for-one basis    
ADS [Member]          
Share price | $ / shares   10      
Series C Redeemable Convertible Preferred Shares [Member]          
Preferred Stock, Conversion Basis     one-for-one basis    
Series C Preferred Stock [Member]          
stock issued during period       0  
IPO [Member] | Common Class A [Member]          
Common Stock, Par or Stated Value Per Share | $ / shares   $ 0.001      
Stock Repurchased and Retired During Period, Shares 521,924        
Stock Repurchased and Retired During Period, Value | $ $ 4.8        
IPO [Member] | Common Class B [Member]          
Stock Issued During Period, Shares, Conversion of Convertible Securities   12,204,604      
IPO [Member] | ADS [Member]          
Sale of Stock, Number of Shares Issued in Transaction   7,000,000      
IPO [Member] | Series A Redeemable Convertible Preferred Shares [Member]          
Convertible Preferred Shares, Outstanding   10,340,000      
Stock Issued During Period, Shares, Conversion of Convertible Securities   7,844,137      
Preferred Stock, Conversion Basis   1: 0.76      
IPO [Member] | Series B Redeemable Convertible Preferred Shares [Member]          
Convertible Preferred Shares, Outstanding   9,067,384      
Stock Issued During Period, Shares, Conversion of Convertible Securities   8,557,980      
Preferred Stock, Conversion Basis   1:0.94      
IPO [Member] | Series C Plus Redeemable Convertible Preferred Shares [Member]          
Convertible Preferred Shares, Outstanding   6,734,459      
Stock Issued During Period, Shares, Conversion of Convertible Securities   6,883,520      
Preferred Stock, Conversion Basis   1:1.02      
IPO [Member] | Series C Preferred Stock [Member]          
Convertible Preferred Shares, Outstanding   833,125      
Over-Allotment Option [Member] | ADS [Member]          
Sale of Stock, Number of Shares Issued in Transaction   1,050,000