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Stockholders Equity and Equity Incentive Plan (Tables)
9 Months Ended
Sep. 30, 2022
Equity [Abstract]  
Schedule of Share-based Payment Arrangement, Option, Activity
The following table summarizes the option award activity for the nine months ended September 30, 2022 (in thousands, except share price, fair value and term):
Number of OptionsWeighted-
Average
Exercise
Price
Weighted-
Average
Remaining
Contractual
Term (in
years)
Aggregate
Intrinsic
Value (in
thousands)
TotalService
based
Performance-
based
Outstanding at December 31, 202125,884 17,768 8,116 $16.53 7.36$529,265 
Exercised(1,453)(1,218)(235)$12.26 
Forfeited or expired(877)(624)(253)$17.16 
Outstanding at September 30, 202223,554 15,926 7,628 $16.77 6.7$89,906 
Schedule of Share-based Payment Arrangement, Restricted Stock Units and Performance Stock Units, Activity
The following table summarizes RSU and PSU activity and related information during the nine months ended September 30, 2022 under the 2021 Plan (in thousands, except share price):
Number of RSUs and PSUs
Weighted-Average Grant Date Fair Value
TotalService
based
Performance-
based
Unvested and outstanding as of December 31, 20217,570 7,570 — $33.02 
Granted
5,119 4,031 1,088 $21.81 
Vested
(1,419)(1,419)— $32.31 
Forfeited
(732)(728)(4)$31.13 
Unvested and outstanding as of September 30, 202210,538 9,454 1,084 $27.79 
Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions
The following table summarizes the weighted-average assumptions used in estimating the fair value of the ESPP for the offering periods during the three and nine months ended September 30, 2022 using the Black-Scholes pricing model:
Three Months Ended September 30,
Nine Months Ended September 30,
20222022
ESPP:
Expected term (in years)
0.5 - 1.0
      0.5 - 1.0
Expected volatility
42.4% - 45.2%
34.8% - 45.2%
Risk-free interest rate
3.3% - 3.5%
0.6% - 3.5%
Expected dividend yield
—%
—%
Fair value of common stock
$21.55
$20.05 - $21.55
Schedule of Share-based Payment Arrangement, Expensed and Capitalized, Amount
The stock-based compensation (excluding deferred compensation) for the periods indicated below are as follows (in thousands):
Three Months Ended
September 30,
Nine Months Ended
September 30,
2022202120222021
Cost of revenues
$5,247 $302 $15,064 $782 
Research and development
10,329 1,344 29,750 3,148 
Sales and marketing
10,500 1,453 28,072 3,323 
General and administrative
8,079 934 25,102 2,665 
Total stock-based compensation
$34,155 $4,033 $97,988 $9,918