Stockholders' equity (Tables)

3 Months Ended

Mar. 31, 2025

Share-Based Payment Arrangement [Abstract]

Summary of Common Stock Reserved for Future Issuance

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

	March 31,	December 31,
	2025	2024
2010 Equity Incentive Plan:
Stock options outstanding	1,178,205	1,401,086
2021 Equity Incentive Plan:
RSUs outstanding and PSUs(1)	15,302,200	15,809,202
Shares available for future issuance under:
2021 Equity Incentive Plan	17,617,621	10,514,374
2021 Employee Stock Purchase Plan	4,460,974	2,986,132
Total shares of common stock reserved	38,559,000	30,710,794
(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

Summary 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
Balance - December 31, 2024	14,892,768	$	10.74	673,578	$	10.40
Granted	2,226,762	$	8.41	372,044	$	8.23
Released	(1,478,809)	$	12.58	(75,520)	$	10.40
Canceled	(1,209,407)	$	11.21	(285,225)	$	10.98
Balance - March 31, 2025	14,431,314	$	10.15	684,877	$	8.98
Unvested - March 31, 2025	14,408,951	$	10.16	684,877	$	8.98
Awards vested, not yet released - March 31, 2025	22,363	$	8.49	—	$	—
(1) Canceled PSU shares consist of awards forfeited as well as the difference in the number of shares granted at target and the shares certified by the Board based on actual achievement.

Summary 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, 2024	1,351,086	$	5.28	4.05	$	4,666
Granted	—	—
Exercised	(148,557)	3.92
Canceled	(74,324)	6.86
Balance - March 31, 2025	1,128,205	$	5.35	4.27	$	3,382
Vested & expected to vest as of March 31, 2025	1,128,205	$	5.35	4.27	$	3,382
Exercisable as of March 31, 2025	1,127,592	$	5.34	4.27	$	3,382

Summary 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,
	2025		2024
Cost of revenue	$	1,572	$	1,657
Sales and marketing	5,407		7,341
Research and development	4,708		6,675
General and administrative	6,280		7,032
Total stock-based compensation expense	$	17,967	$	22,705