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Stockholders Equity (Tables)
12 Months Ended
Dec. 31, 2022
Equity [Abstract]  
Schedule of Share-based Payment Arrangement, Option, Activity
The following table summarizes the option award activity for the years ended December 31, 2022 and 2021 (in thousands, except share price, fair value and term):

Number of Options
Weighted-Average Exercise Price
Weighted-Average Grant Date Fair Value
Weighted-Average Remaining Contractual Term (in years)
Aggregate Intrinsic Value (in thousands)
Total
Service-based
Performance-based
Outstanding at December 31, 202023,710 16,463 7,247 $14.85 
 
7.84$83,364 
Granted
5,668 3,749 1,919 $22.20 $8.20 
 
 
Exercised
(1,276)(1,024)(252)$11.83 
 
 
$13,742 
Forfeited or expired
(2,218)(1,420)(798)$15.74 
 
 
 
Outstanding at December 31, 202125,884 17,768 8,116 $16.53 
 
7.36$529,265 
Exercised
(1,665)(1,329)(336)$12.19 
 
 
$12,718 
Forfeited or expired
(1,399)(935)(464)$17.01 
 
 
 
Outstanding at December 31, 202222,820 15,504 7,316 $16.83 
 
6.34$51,157 
Schedule of Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity
The following table summarizes RSU and PSU activity and related information during the year ended December 31, 2022 under the 2021 Plan (in thousands, except share price):
Number of Shares
Weighted-Average Grant Date Fair Value
Unvested and outstanding as of December 31, 2020— $— 
Granted
7,635 33.02
Vested
— — 
Forfeited
(65)32.98
Unvested and outstanding as of December 31, 20217,570 $33.02 
Granted
12,795 18.89 
Vested
(1,998)31.43 
Forfeited
(1,021)30.02 
Unvested and outstanding as of December 31, 202217,346 $22.95 
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions The fair values of the Service-based option awards granted during the years ended December 31, 2021 and 2020 were estimated using the following assumptions using the Black-Scholes pricing model:
20212020
Service-based Option Awards:
Expected term (in years)
3.42.9
Expected volatility
39.4 %36.4 %
Risk-free interest rate
0.4 %0.3 %
Expected dividend rate
— %— %
The following table summarizes the weighted-average assumptions used in estimating the fair value of our Performance-based options using the Monte Carlo pricing model:
20212020
Performance-based Option Awards:
Expected term (in years)
     1.9 - 2.7
3.4 - 3.9
Expected volatility
40.0% - 45.0%
45%
Risk-free interest rate
1.2% - 1.5%
0.6% - 0.7%
Expected dividend rate
—%
—%
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 years ended December 31, 2022 and 2021 using the Black-Scholes pricing model:
Year ended
December 31,
20222021
ESPP:
Expected term (in years)
0.5 - 1.0
      0.3 - 0.9
Expected volatility
34.8% - 45.2%
27.6% - 32.6%
Risk-free interest rate
0.6% - 3.5%
0.1%
Expected dividend rate
—%
—%
Fair value of common stock
$20.05 - $21.55
$29.00
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):

Year Ended December 31,
202220212020
Cost of revenues
$20,763 $5,528 $916 
Research and development
40,045 11,114 2,531 
Sales and marketing
39,175 12,889 3,035 
General and administrative
35,879 15,486 5,562 
Total stock-based compensation
$135,862 $45,017 $12,044