Net Loss Per Share - Summary of Number of Ordinary Shares Excluded from Computation of Earnings Per Share (Detail) - shares	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Ordinary shares issuable excluded from computation of earnings per share	26,970,495	2,888,719
Conversion Of Senior Convertible Notes At Five Point Six Seven Per Share [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Ordinary shares issuable excluded from computation of earnings per share	18,518,514
Exercise Of Options To Purchase Ordinary Shares [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Ordinary shares issuable excluded from computation of earnings per share	2,850,548	1,810,785
Restricted Stock Units (RSUs) [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Ordinary shares issuable excluded from computation of earnings per share	3,517,558	902,409
Exercise Of Warrants At $16.14 Per Share [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Ordinary shares issuable excluded from computation of earnings per share	111,525	111,525
Exercise Of Warrants At $9.375 Per Share [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Ordinary shares issuable excluded from computation of earnings per share	64,000	64,000
Exercise Of Warrants At $4.00 Per Share [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Ordinary shares issuable excluded from computation of earnings per share	1,844,020
Consent Shares [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Ordinary shares issuable excluded from computation of earnings per share	64,330