Equity Incentive Plans and Stock-Based Compensation - Summary of the Stock-Based Compensation (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Feb. 28, 2021	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense		$ 57,933	$ 86,696	$ 41,058
Cost of Revenue [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense		4,029	858	733
Research and Development [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense		26,540	21,771	16,524
Sales and Marketing [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense		5,122	4,081	3,988
General and Administrative [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 40,400	22,242	59,986	18,932
Restructuring and other charges
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense		$ 0	$ 0	$ 881