Stock-Based Awards (Tables)

3 Months Ended

Mar. 31, 2022

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Stock Options Activity

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

	Number of Underlying Shares
Outstanding at December 31, 2021		2,288
Granted		—
Exercised		(116	)
Forfeited or expired		(5	)
Outstanding at March 31, 2022		2,167
Vested and exercisable at March 31, 2022		1,603

Summary of Restricted Stock Units

The following table summarizes activity for RSUs, PSUs, and MSUs, for the three months ended March 31, 2022 (in thousands):

	Number of Underlying Shares
	RSUs			MSUs		PSUs
Outstanding at December 31, 2021		1,165			84		268
Granted		591			57		75
Vested		(59	)		—		(268	)
Forfeited		(12	)		—		—
Outstanding at March 31, 2022		1,685			141		75

Summary of Stock-Based Compensation Expense

The following table presents stock-based compensation expense included in our condensed consolidated statements of operations for the periods presented (in thousands):

	Three Months Ended March 31,
	2022		2021
Cost of revenue	$	599	$	289
Research and development expense		4,775		3,110
Sales and marketing expense		2,752		1,802
General and administrative expense		3,188		2,248
Total stock-based compensation expense	$	11,314	$	7,449