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Stockholders' Equity (Tables) | 3 Months Ended
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Mar. 31, 2023
Share-Based Payment Arrangement [Abstract] |
Summary of RSU and RSA Activity | The following table summarizes the RSU and RSA activity during the three months ended March 31, 2023:
| Class A Number of Shares |  | Weighted- Average Grant Date Fair Value
| (in thousands, except per share data)
Unvested at December 31, 2022 | 132,392 |  | $ | 18.28 |
Granted | 23,045 |  | $ | 10.51 |
Vested | (21,926) |  | $ | 16.70 |
Forfeited | (5,425) |  | $ | 20.93 |
Unvested at March 31, 2023 | 128,086 |  | $ | 17.04 |
Summary of Stock Option Award Activity | The following table summarizes the stock option award activity under the Stock Plans during the three months ended March 31, 2023:
| Class A Number of Shares |  | Class B Number of Shares |  | Weighted- Average Exercise Price |  | Weighted- Average Remaining Contractual Term (in years) |  | Aggregate Intrinsic Value (1)
| (in thousands, except per share data)
Outstanding at December 31, 2022 | 2,589 |  | 570 |  | $ | 9.68 |  |  | 4.05 |  | $ | 9,669 |
Granted | — |  | — |  | $ | — |  |  |  |  |
Exercised | (3) |  | (1) |  | $ | 7.66 |  |  |  |  |
Forfeited | — |  | — |  | $ | — |  |  |  |  |
Outstanding at March 31, 2023 | 2,586 |  | 569 |  | $ | 9.68 |  |  | 3.73 |  | $ | 12,359 |
(1)The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying stock option awards and the closing market price of our Class A common stock as of March 31, 2023 and December 31, 2022, respectively.
Summary of Total Stock-based Compensation Expense | Total stock-based compensation expense by function was as follows:
| Three Months Ended March 31, |  |
| 2023 |  | 2022 |  |  |  |
| (in thousands)
Cost of revenue | $ | 1,885 |  |  | $ | 2,446 |  |  |  |  |
Research and development | 219,850 |  |  | 182,866 |  |  |  |  |
Sales and marketing | 54,939 |  |  | 42,071 |  |  |  |  |
General and administrative | 38,257 |  |  | 48,061 |  |  |  |  |
Total | $ | 314,931 |  |  | $ | 275,444 |  |  |  |  |

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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