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Share-Based Compensation - Summary of Share Option Activity (Detail) - $ / shares
12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Share-based Payment Arrangement [Abstract]    
Number of Share Options Outstanding, Beginning Balance 1,810,785  
Number of Share Options Outstanding, Granted 1,907,605 258,026
Number of Share Options Outstanding, Exercised (4,837)  
Number of Share Options Outstanding, Forfeited (863,005)  
Number of Share Options Outstanding, Ending Balance 2,850,548 1,810,785
Number of Share Options Outstanding, Exercisable 1,128,881  
Weighted-Average Exercise Price, Beginning Balance $ 7.69  
Weighted-Average Exercise Price, Granted 3.22  
Weighted-Average Exercise Price, Exercised 1.44  
Weighted-Average Exercise Price, Forfeited 7.13  
Weighted-Average Exercise Price, Ending Balance 4.88 $ 7.69
Weighted-Average Exercise Price, Exercisable $ 7.46  
Weighted-Average Remaining Contractual Life, Outstanding 90 months 68 months
Weighted-Average Remaining Contractual Life, Granted 120 months  
Weighted-Average Remaining Contractual Life, Exercisable 57 months