Restructuring Plan - Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended		12 Months Ended
	May 31, 2020	Jun. 30, 2019	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Restructuring Cost And Reserve [Line Items]
Restructuring costs			$ 2,562	$ 2,505	$ 640
Restructuring and related cost, expected cost					$ 1,762
Research and Development Costs
Restructuring Cost And Reserve [Line Items]
Restructuring plan, percentage of number of positions eliminated		4.00%
COVID-19 Pandemic
Restructuring Cost And Reserve [Line Items]
Restructuring plan, percentage of number of positions eliminated	3.00%