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Stockholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2024
Stockholders' Equity Note [Abstract] |
Schedule of Common Stock | In the year ended December 31, 2024 no shares of Class B common stock were converted to Class A common stock. As of December 31, 2024 the par value of the Class A, Class B and Class C shares was $139, $14 and $3, respectively.
|  | Shares Authorized |  |  | Shares Issued |  |  | Shares Outstanding |
Class A |  |  | 1,000,000,000 |  |  |  | 13,922,877 |  |  |  | 13,922,877 |
Class B |  |  | 100,000,000 |  |  |  | 1,369,518 |  |  |  | 1,369,518 |
Class C |  |  | 200,000,000 |  |  |  | 277,777 |  |  |  | 277,777 |
|  |  | 1,300,000,000 |  |  |  | 15,570,172 |  |  |  | 15,570,172 |
Activity under Plans | Activity under the Plans is as follows:
|  | Number of Shares |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Term (Years) |  |  | Aggregate Intrinsic Value |
Outstanding as of January 1, 2024 |  |  | 499,442 |  |  | $ | 101.82 |  |  |  | 4.6 |  |  | $ | — |
Forfeited |  |  | (66,892 | ) |  | $ | 95.91 |  |  |  |  |  |  |
Expired |  |  | (4,840 | ) |  | $ | 36.00 |  |  |  |  |  |  |
Outstanding as of December 31, 2024 |  |  | 427,710 |  |  | $ | 103.49 |  |  |  | 3.7 |  |  | $ | — |
Vested and expected to vest as of December 31, 2024 |  |  | 427,351 |  |  | $ | 103.48 |  |  |  | 3.7 |  |  | $ | — |
Options exercisable as of December 31, 2024 |  |  | 427,490 |  |  | $ | 103.49 |  |  |  | 3.7 |  |  | $ | — |
Summary of Unvested Restricted Stock Unit Activity | The following table summarizes the unvested restricted stock unit activity for the year ended December 31, 2024:
|  | Shares |  |  | Weighted Average Grant Date Fair Value |
Unvested as of January 1, 2024 |  |  | 1,119,107 |  |  | $ | 74.39 |
Granted |  |  | 1,903,463 |  |  |  | 19.44 |
Vested |  |  | (1,031,080 | ) |  |  | 46.04 |
Forfeited |  |  | (637,450 | ) |  |  | 50.44 |
Unvested as of December 31, 2024 |  |  | 1,354,040 |  |  | $ | 30.01 |
Summary of Performance-based Market Condition Share Awards |
|  | Shares |  |  | Weighted Average Grant Date Fair Value |
Unvested as of January 1, 2024 |  |  | 1,335,803 |  |  | $ | 45.82 |
Granted |  |  | — |  |  |  | — |
Vested |  |  | — |  |  |  | — |
Cancelled/Forfeited |  |  | (559,923 | ) |  |  | 54.56 |
Unvested as of December 31, 2024 |  |  | 775,880 |  |  | $ | 39.51 |
Schedule of Weighted Average Assumptions used to Determine Estimated Fair Value of Performance-based Market Condition Share Awards Granted | The weighted average estimated fair value of the performance-based market condition share awards granted during the year ended December 31, 2024 and December 31, 2023 was determined using a Monte-Carlo valuation simulation, with the following most significant weighted-average assumptions:
|  | Years Ended December 31, |
|  | 2024 |  | 2023 |  |  | 2022 |
Risk-free rate |  | N/A |  |  | 4.61 | % |  |  | 2.34 | %
Term to end of performance period (yrs) |  | N/A |  | 3 years |  |  | 3 years |
Weighted average valuation date stock price |  | N/A |  | $ | 2.76 |  |  | $ | 3.50 |
Expected volatility |  | N/A |  |  | 70 | % |  |  | 75 | %
Expected dividend yield |  | N/A |  |  | 0 | % |  |  | 0 | %
Stock-Based Compensation Expense | Stock-based compensation expense was classified in the consolidated statements of operations and comprehensive loss as follows:
|  | Years Ended December 31, |
|  | 2024 |  |  | 2023 |  |  | 2022 |
Cost of revenues |  | $ | 1,470 |  |  | $ | 1,681 |  |  | $ | 1,605 |
Research and development |  |  | 7,160 |  |  |  | 10,348 |  |  |  | 10,236 |
Selling and marketing |  |  | 4,954 |  |  |  | 8,613 |  |  |  | 7,182 |
General and administrative |  |  | 33,921 |  |  |  | 51,398 |  |  |  | 50,121 |
Total |  | $ | 47,505 |  |  | $ | 72,040 |  |  | $ | 69,144 |

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