Stockholders' equity (Tables)

3 Months Ended

Mar. 31, 2024

Share-Based Payment Arrangement [Abstract]

Schedule of Common Stock Reserved for Future Issuance

Shares of common stock reserved for future issuance consisted of the following:

	March 31,	December 31,
	2024	2023
2010 Equity Incentive Plan:
Stock options outstanding	3,796,330	4,621,021
2021 Equity Incentive Plan:
RSUs outstanding and PSUs(1)	16,212,578	16,738,309
Shares available for future issuance under:
2021 Equity Incentive Plan	11,914,929	4,093,695
2021 Employee Stock Purchase Plan	3,922,466	2,350,803
Total shares of common stock reserved	35,846,303	27,803,828
(1) For those PSUs in their respective performance periods, the number of shares reserved for issuance is based on the maximum achievement of the corporate performance metrics.

Schedule of Restricted Stock Unit Activity

A summary of RSU and PSU activity under the 2021 Plan is as follows:

	RSUs Outstanding	Weighted Average Grant Date Fair Value		PSUs Outstanding(1)	Weighted Average Grant Date Fair Value
Unvested - December 31, 2023	15,769,577	$	14.07	645,833	$	8.89
Granted	1,422,785	11.31		553,568	10.98
Released	(1,636,044)	15.41		(112,545)	8.89
Canceled	(511,688)	17.51		(195,663)	8.89
Unvested - March 31, 2024	15,044,630	$	13.55	891,193	$	10.19
Awards vested, not yet released - March 31, 2024	3,642	$	10.98	—	$	—
(1) Canceled PSU shares consist of the difference in the number of shares granted at target in 2023 and the shares certified by the Board based on actual achievement.

Schedule of Option Activity

The following is a summary of activity for stock options having only service-based vesting conditions under the Equity Incentive Plans:

	Options Outstanding	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value (In Thousands)
Balance - December 31, 2023	4,571,021	$	5.08	3.23	$	44,309
Granted	—	—
Exercised	(780,998)	4.03
Canceled	(43,693)	7.67
Balance - March 31, 2024	3,746,330	$	5.27	3.46	$	21,653
Vested & expected to vest as of March 31, 2024	3,746,330	$	5.27	3.46	$	21,653
Exercisable as of March 31, 2024	3,718,691	$	5.21	3.44	$	21,642

Schedule of Stock-Based Compensation Expense

Total stock-based compensation expense included in the condensed consolidated statements of operations was as follows (in thousands):

	Three Months Ended March 31,
	2024		2023
Cost of revenue	$	1,657	$	1,593
Sales and marketing	7,341		7,277
Research and development	6,675		6,294
General and administrative	7,032		9,911
Restructuring charges	—		1,208
Total stock-based compensation expense	$	22,705	$	26,283