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Stockholders' equity (Tables)
 12 Months Ended
Dec. 31, 2025
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:
December 31,December 31,
20252024
2010 Equity Incentive Plan:
Stock options outstanding940,908 1,401,086 
2021 Equity Incentive Plan:
RSUs outstanding and PSUs(1)
15,485,131 15,809,202 
Shares available for future issuance under:
2021 Equity Incentive Plan13,943,187 10,514,374 
2021 Employee Stock Purchase Plan4,219,800 2,986,132 
Total shares of common stock reserved34,589,026 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.
Schedule of Weighted Average Assumptions, Options The following table summarizes the weighted-average assumptions used in the Black-Scholes option-pricing model to estimate the fair value of the Exchanged Awards as of August 6, 2022:
Risk-free interest rate3.0%
Expected volatility
68.6%
Expected life (in years)
4.9
Expected dividend yield
—%
The following table summarizes the weighted-average assumptions used in the Black-Scholes option-pricing model to estimate the fair value of employee stock purchase rights granted under the new ESPP offering period:
Fiscal Year Ended December 31,
202520242023
Risk-free interest rate3.9 %4.6 %4.6 %
Expected volatility55.5 %50.6 %68.6 %
Expected life (in years)1.31.31.6
Expected dividend yield— — — 
Schedule of RSU and PSU Activity
A summary of RSU and PSU activity under the 2021 Plan is as follows:
RSUs OutstandingWeighted 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 10,869,2356.88 925,1697.37 
Released(7,225,908)10.74 (169,073)9.99 
Canceled(4,376,936)9.83 (518,673)10.13 
Balance - December 31, 2025
14,159,159$8.06 911,001$7.55 
Unvested - December 31, 2025
14,069,826$8.06 911,001$7.55 
Awards vested, not yet released - December 31, 2025
89,333$8.39 —$— 
(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.
Schedule of Stock Option Activity
The following is a summary of activity for stock options having only service-based vesting conditions under the Equity Incentive Plans:
Options OutstandingWeighted Average Exercise PriceWeighted Average Remaining Contractual TermAggregate Intrinsic Value
(In Thousands)
Balance - December 31, 2024
1,351,086 $5.28 4.05$4,666 
Granted — — 
Exercised (364,669)3.56 
Canceled (95,509)6.61 
Balance - December 31, 2025
890,908 $5.84 3.61$1,174 
Vested & exercisable as of December 31, 2025
890,908 $5.84 3.61$1,174 
Schedule of Performance-Based Options The following table summarizes the activities of Performance-Based Options under the Equity Incentive Plans:
Performance-Based Options Outstanding
Weighted Average Exercise PriceWeighted Average Remaining Contractual TermAggregate Intrinsic Value
(In Thousands)
Balance - December 31, 2024
50,000 $3.06 3.58$259 
Granted— — 
Exercised— — 
Canceled— — 
Balance - December 31, 2025
50,000 $3.06 2.58$140 
Vested & exercisable as of December 31, 202550,000$3.06 2.58$140 
Schedule of Stock-Based Compensation Expense
Total stock-based compensation expense included in the consolidated statements of operations was as follows (in thousands):
Fiscal Year Ended December 31,
202520242023
Cost of revenue$6,748 $6,887 $7,006 
Sales and marketing22,074 28,665 30,859 
Research and development18,385 27,046 26,301 
General and administrative21,547 27,584 30,672 
Restructuring charges
— (160)1,208 
Total stock-based compensation expense$68,754 $90,022 $96,046