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Significant Accounting Policies - Additional information (Detail)
 12 Months Ended
Mar. 31, 2021
Segment
$ / shares
Mar. 31, 2020
$ / shares
Disclosure Of Significant Accounting Policies [Line Items]    
Par value per share $ 0.0005 $ 0.0005
Number of reportable segments | Segment 3  
Cash and cash equivalents and short-term deposits with original maturities three months or less  
Ordinary Share [Member]    
Disclosure Of Significant Accounting Policies [Line Items]    
Par value per share $ 0.0005 0.0005
Class B Shares [Member]    
Disclosure Of Significant Accounting Policies [Line Items]    
Par value per share $ 0.0005 $ 0.0005