Income Taxes - Summary of Activity Related to Uncertain Tax Positions (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Tax Uncertainties [Abstract]
Balance at beginning of period	$ 1,216	$ 1,216
Increases related to current year tax positions	0	0
Increases related to prior years tax positions	0	0
Balance at end of period	$ 1,216	$ 1,216