Stock-Based Compensation Expense (Tables)

3 Months Ended

Mar. 31, 2022

Share-based Payment Arrangement [Abstract]

Summary of Share-Based Payment Arrangement, Option, Activity

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

	Options outstanding
	Number of shares			Weighted average exercise price per share		Weighted average contractual term (in years)		Aggregate intrinsic value (in thousands)
Outstanding - December 31, 2021		3,954,639		$	6.92			$	15,398
Options granted		—			—
Options exercised		(197,875	)		0.29
Options cancelled		(2,184	)		12.75
Options expired		—			—
Outstanding at March 31, 2022		3,754,580			6.91		4.89		1,977
Vested and exercisable - March 31, 2022		3,559,805		$	6.27		4.60	$	1,977
Vested and expected to vest - March 31, 2022		3,754,580		$	6.91		4.89	$	1,977

Summary of Share-Based Payment Arrangement, Restricted Stock And Restricted Stock Unit, Activity

The following table summarizes the restricted stock unit activity for the three months ended March 31, 2022:

	Restricted Stock Units (“RSUs”)
	Number of			Weighted average
	shares			grant date fair value
Outstanding as of December 31, 2021		11,302,697		$	6.88
Granted		273,954			9.32
Vested		(7,177,204	)		6.65
Forfeited or cancelled		(101,709	)		8.02
Outstanding as of March 31, 2022		4,297,738		$	7.39

Summary of Share-Based Payment Arrangement, Expensed And Capitalized, Amount

The following table summarizes stock-based compensation expense and its allocation within the accompanying condensed consolidated statements of operations (in thousands):

	Three months ended March 31,
	2022		2021
Cost of goods sold	$	683	$	20
Research and development		7,677		441
Sales and marketing		4,598		212
General and administrative		38,603		908
Total stock-based compensation expense	$	51,561	$	1,581