Annual report pursuant to Section 13 and 15(d)

Income Taxes - Additional Information (Detail)

v3.20.2
Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Income Taxes [Line Items]    
Effective income tax rate (0.15%) (0.07%)
Research and development tax credit carry forwards $ 1,487 $ 560
Valuation allowance 19,129 8,910
Undistributed retained earnings [1] (91,226) $ (24,838)
Foreign Subsidiaries [Member]    
Income Taxes [Line Items]    
Undistributed retained earnings 2,000  
Bermuda [Member]    
Income Taxes [Line Items]    
Effective income tax rate   0.00%
Switzerland [Member]    
Income Taxes [Line Items]    
Net operating loss carry forwards $ 67,700  
Net operating loss carry forwards expiration date Mar. 31, 2027  
United Kingdom [Member]    
Income Taxes [Line Items]    
Net operating loss carry forwards $ 1,200  
United States [Member]    
Income Taxes [Line Items]    
Effective income tax rate 21.00%  
Net operating loss carry forwards $ 1,900  
Net operating loss carry forwards expiration date Mar. 31, 2039  
Research and development tax credit carry forwards $ 1,500  
[1] Retroactively restated for the reverse recapitalization as described in Note 1.