Stock Incentive Plans (Tables)

3 Months Ended

Mar. 31, 2022

Share-based Payment Arrangement [Abstract]

Summary of Share-based Compensation Arrangements by Share-based Payment Award

The table below summarizes the option activity for the three months ended March 31, 2022:

						Weighted-
						Average
				Weighted-		Remaining		Aggregate
				Average		Contractual		Intrinsic
				Exercise		Life		Value
	Shares			Price		(in years)		(in thousands)
Options outstanding—December 31, 2021		55,644,495		$	2.95		6.0	$	469,591
Exercised		(3,968,080	)		2.69
Forfeited and canceled		(104,631	)		3.69
Options outstanding—March 31, 2022		51,571,784		$	2.97		5.8	$	416,210
Options exercisable—March 31, 2022		42,596,197		$	2.75		5.6	$	353,208
Options vested and expected to vest—March 31, 2022		51,198,336		$	2.95		5.8	$	414,180

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The valuation of the performance-based RSUs with a market condition granted during the three months ended March 31, 2022 was determined using a Monte Carlo simulation model using the following assumptions:

Expected term (in years)	2.8
Expected volatility	35%
Expected dividend yield	0%
Risk-free interest rate	2.28%
Fair value at valuation date	$	7.42

Schedule of Non-vested Restricted Stock Units Activity

The table below summarizes the RSU activity for the three months ended March 31, 2022:

				Weighted-
				Average
	Shares			Fair Value
Non-vested RSUs—December 31, 2021		18,558,211		$	10.74
Granted		14,315,680			10.20
Vested		(38,884	)		10.25
Forfeited		(153,849	)		11.25
Non-vested RSUs—March 31, 2022		32,681,158			10.50

Summary of Share-based Payment Arrangement, Expensed and Capitalized, Amount

Stock-Based Compensation—Stock-based compensation expense has been recorded in the accompanying condensed consolidated statements of operations and comprehensive income (loss) as follows for the three months ended March 31, 2022 and 2021 (in thousands):

	For the Three Months Ended
	March 31,
	2022		2021
Cost of revenues	$	849	$	219
Research and development		3,530		575
Sales and marketing		4,830		555
General and administrative		14,435		11,305
Total stock-based compensation expense	$	23,644	$	12,654