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Stockholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2024
Share-Based Payment Arrangement [Abstract] |
Stock-Based Compensation Expense for Employees and Non-Employees | The following table presents total share-based compensation expense recorded (in thousands):
|  |  | Years Ended December 31,
|  |  |  |  | 2024 |  | 2023 |  | 2022
Cost of revenues |  |  |  |  | $ | 1,786 |  |  | $ | 2,256 |  |  | $ | 2,484 |
Research and development |  |  |  |  | 28,044 |  |  | 44,103 |  |  | 41,335 |
Sales and marketing |  |  |  |  | 7,466 |  |  | 9,524 |  |  | 13,857 |
General and administrative |  |  |  |  | 47,318 |  |  | 77,619 |  |  | 75,780 |
Total share-based compensation expense |  |  |  |  | $ | 84,614 |  |  | $ | 133,502 |  |  | $ | 133,456 |
Schedule of Assumptions Used to Determine Fair Value of ESPP | The following table presents the key assumptions used to determine the fair value of the awards:
Expected term (years) | 3.00
Expected volatility | 49.04 | %
Expected dividends | — | %
Risk-free interest rate | 0.27 | %
The following table presents the key assumptions used to determine the fair value of rights granted under the ESPP:
|  |  | Years Ended December 31,
|  |  |  |  | 2024 |  | 2023 |  | 2022
Expected term (years) |  |  |  |  | 0.50 |  | 0.50 |  | 0.50
Expected volatility |  |  |  |  | 60.95%-85.39% |  | 55.79%-109.39% |  | 70.37%-78.74%
Dividend yield |  |  |  |  | 0.00 | % |  | 0.00 | % |  | 0.00 | %
Risk-free interest rate |  |  |  |  | 4.44%-5.40% |  | 5.24%-5.41% |  | 1.54%-4.54%
Weighted-average grant-date fair value per share |  |  |  |  | $ | 0.90 |  |  | $ | 3.62 |  |  | $ | 8.71 |
Schedule of Restricted Stock Unit and Performance Share Unit Activity | RSUs and PSUs Activity
| Number of RSUs and PSUs Outstanding |  | Weighted Average Grant Date Fair Value
Balance at December 31, 2023 | 10,065,783 |  |  | $ | 23.63 |
Granted | 5,853,240 |  |  | 4.24 |
Released | (5,069,408) |  |  | 21.02 |
Forfeited | (3,462,650) |  |  | 22.50 |
Balance at December 31, 2024 | 7,386,965 |  |  | $ | 10.58 |
Schedule of Stock Option Activity | Stock Option Activity
|  |  | Number of Stock Options Outstanding |  | Weighted-Average Exercise Price per Share |  | Weighted-Average Remaining Contractual Term in Years |  | Aggregate Intrinsic Value
Balance at December 31, 2023 |  |  | 232,327 |  |  | $ | 6.02 |  |  | 1.81 |  | $ | 1,240,014 |
Forfeited |  |  | (50,251) |  |  |  |  |  |  |
Balance at December 31, 2024 |  |  | 182,076 |  |  | $ | 5.74 |  |  | 1.17 |  | $ | — |

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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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