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Stockholders' Equity (Tables)
 12 Months Ended
Dec. 31, 2025
Equity [Abstract]  
Schedule of Class A Common Stock Available for Future Issuance
The Company had reserved the following shares of Class A common stock for future issuance:
(in thousands)
As of December 31,20252024
Shares outstanding from stock options and RSUs
9,8567,904
Shares available for future equity award grants12,44413,642
Shares available for future ESPP offerings1,7071,249
Total shares reserved24,00722,795
Schedule of Stock Options Roll Forward A summary of the Company’s stock option activity for its Plans is as follows:
Outstanding
Stock
Options
(in thousands)
Weighted-
Average
Exercise
Price
Weighted-
Average
Remaining
Contractual
Life
(in years)
Aggregate
Intrinsic Value
(in millions)
Balance as of December 31, 20241
3,283 $12.40 6.2$7.1 
Granted2
2,324 $10.55 
Exercised(159)$7.22 
Cancelled/forfeited2
(662)$13.11 
Balance as of December 31, 20251
4,786 $11.58 7.2$13.4 
Vested and exercisable as of December 31, 2025
2,555 $12.50 5.5$6.3 
______________
(1)Includes 0.2 million of stock options with both service-based and performance-based conditions.
(2)Includes less than 0.1 million of stock options with both service-based and performance-based conditions.
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions
The per-share fair value of each stock option was determined on the date of grant using the following weighted-average assumptions:
Year Ended December 31,20252024
Expected volatility58.0%58.1%
Expected term (in years)6.05.9
Risk-free interest rate4.1%4.2%
Schedule of Outstanding Nonvested RSUs A summary of the Company’s outstanding nonvested RSUs for its Plans is as follows:
Number
of Units
(in thousands)
Weighted-Average
Grant-Date
Fair Value
Nonvested as of December 31, 20241
4,621 $12.57 
Granted1
4,355 $9.94 
Vested1
(2,897)$11.28 
Forfeited
(1,009)$12.09 
Nonvested as of December 31, 20251
5,070 $11.13 
______________
(1)Includes less than 0.1 million of RSUs with both service-based and performance-based conditions.
Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions
The fair value of purchase rights granted under the ESPP were determined on the date of grant using the following weighted-average assumptions:
Year Ended December 31,20252024
Expected volatility62.8%54.3%
Expected term (in years)0.50.5
Risk-free interest rate4.0%4.7%
Schedule of Stock-based Compensation Expense The Company recognized stock-based compensation under the Plans and ESPP as follows:
(in millions)
Year Ended December 31,202520242023
Research and development$8.5 $10.1 $11.2 
Sales and marketing8.6 10.0 13.8 
General and administrative11.5 16.2 13.8 
Total$28.6 $36.3 $38.8