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Stockholders' Equity (Tables)
9 Months Ended
Sep. 30, 2022
Equity [Abstract]  
Summary of Stock Option Activity Stock option activity for the nine months ended September 30, 2022 is presented below:
Outstanding optionsWeighted average exercise priceWeighted average remaining contractual term (years)Aggregate intrinsic value (thousands)
Balance as of December 31, 202111,260,788 12.11 6.763,862 
Granted1,868,692 12.77 
Exercised(364,844)8.30 
Cancelled(122,133)16.76 
Balance as of September 30, 202212,642,503 12.27 6.6150 
Vested and exercisable as of September 30, 20228,974,051 11.79 5.8150 
Vested and expected to vest as of September 30, 202212,437,571 12.25 6.6150 
Summary of Restricted Stock Activity
Stock award activity, which includes PSUs, RSAs and PSUs, for the nine months ended September 30, 2022 is presented below:
Outstanding RSUs, RSAs and PSUsWeighted-average grant date fair value per shareWeighted average remaining contractual term (years)Aggregate intrinsic value (thousands)
Balance as of December 31, 20214,353,637 18.401.575,873
Awarded (1)
8,123,233 11.17
Released(1,457,254)17.38
Cancelled(1,238,528)16.35
Balance as of September 30, 20229,781,088 12.841.859,469
Vested and expected to vest as of September 30, 20228,526,468 12.821.751,841
(1) Includes approximately 1.4 million of PSUs granted during the third quarter of 2022.
Summary of Stock-Based Compensation Expense Stock-based compensation expense recognized in connection with stock options, RSUs, PSUs and the ESPP during each of the three and nine months ended September 30, 2022 and 2021 were as follows:

Three Months Ended September 30,Nine Months Ended September 30,

2022202120222021
Cost of net revenue$179 $197 $625 $735 
Product development5,456 4,258 15,240 12,515 
Sales, marketing and support2,226 1,426 6,065 4,160 
General and administrative5,669 6,419 18,688 18,575 
      Total$13,530 $12,300 $40,618 $35,985