Equity Incentive Plans and Stock-Based Compensation (Tables)

3 Months Ended

Jun. 30, 2022

Share-Based Payment Arrangement [Abstract]

Schedule of Summary of Stock Option Activity and Activity Regarding Shares Available for Grant

Stock option activity and activity regarding shares available for grant under the 2021 Plan is as follows:

	Options Outstanding
	Outstanding Stock Options			Weighted-Average Exercise Price		Weighted-Average Remaining Contractual Life (Years)		Aggregate Intrinsic Value
	(in thousands, except share, years, and per share data)
Balance as of March 31, 2022		73,609,565		$	4.21	6.9		$	35,979
Granted		1,700,512		$	3.56
Exercised		(1,065,784	)	$	1.44
Cancelled/Forfeited/Expired		(2,263,745	)	$	4.89
Balance as of June 30, 2022		71,980,548		$	4.21		6.6	$	14,170
Vested and exercisable as of June 30, 2022		44,547,740		$	3.96		5.4	$	9,774

Schedule of Assumptions Used in the Black-Scholes Option-Pricing Model

The Black-Scholes assumptions used to value stock options at the grant dates are as follows:

	Three Months Ended June 30,
	2022						2021
	Min			Max			Min			Max
Expected term (years)		6.0			6.8			6.0			6.1
Expected volatility		76	%		77	%		67	%		68	%
Risk-free interest rate		2.8	%		2.8	%		0.4	%		0.5	%
Expected dividend yield	—				—			—			—

Summary of Restricted Stock Awards Activity under the Equity Incentive Plan

The following table summarizes the RSU activity under the equity incentive plans and related information:

	Unvested RSUs			Weighted-Average Grant Date Fair Value Per Share
Balance as of March 31, 2022		10,676,378		$	9.70
Granted		14,655,582		$	3.48
Vested		(1,461,448	)	$	6.73
Cancelled/forfeited		(793,942	)	$	6.92
Balance as of June 30, 2022		23,076,570		$	6.03

Schedule of Share Based Compensation Costs

The total stock-based compensation expense related to stock options and RSUs by line item in the accompanying unaudited condensed consolidated statements of operations and comprehensive loss is summarized as follows:

	Three Months Ended June 30,
	2022		2021
	(in thousands)
Cost of revenue	$	3,327	$	798
Research and development		12,076		5,607
Sales and marketing		2,889		903
General and administrative		12,170		2,329
Total stock-based compensation expense	$	30,462	$	9,637