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Stock-Based Compensation (Tables) | 9 Months Ended
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Sep. 30, 2025
Share-Based Payment Arrangement [Abstract] |
Schedule of Stock Option Activity | The following table summarizes the activity for all stock options under all of the Company’s equity incentive plans for the nine months ended September 30, 2025 (shares and aggregate intrinsic value in thousands):
|  | Number of Options |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Life |  | Aggregate Intrinsic Value
Outstanding at December 31, 2024 |  | 3,507 |  |  | $ | 19.05 |  |  | 4.54 |  | $ | 3,882 |
Granted |  | — |  |  | — |  |  |  |  |
Exercised |  | (63) |  |  | 10.91 |  |  |  |  |
Canceled |  | (58) |  |  | 16.05 |  |  |  |  |
Outstanding at September 30, 2025 |  | 3,386 |  |  | $ | 19.25 |  |  | 3.88 |  | $ | 17,008 |
Options vested and exercisable at September 30, 2025 |  | 3,280 |  |  | $ | 18.93 |  |  | 3.79 |  | $ | 17,008 |
Schedule of Activity for all Restricted Stock Units (RSUs) | The following table summarizes the activity for all restricted stock units (“RSUs”) under all of the Company’s equity incentive plans for the nine months ended September 30, 2025 (shares in thousands):
|  | Number of Awards |  | Weighted Average Grant Date Fair Value
Unvested balance at December 31, 2024 |  | 12,375 |  |  | $ | 16.29 |
Granted |  | 12,632 |  |  | 6.74 |
Issued |  | (4,873) |  |  | 15.78 |
Canceled / forfeited |  | (1,569) |  |  | 11.95 |
Unvested balance at September 30, 2025 |  | 18,565 |  |  | $ | 10.49 |
Schedule of Stock-Based Compensation Expense | The Company recognized stock-based compensation expense, including ESPP expenses, in the consolidated statements of operations as follows (in thousands):
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|  | 2025 |  | 2024 |  | 2025 |  | 2024
Cost of customer agreements and incentives |  | $ | 2,391 |  |  | $ | 2,143 |  |  | $ | 7,163 |  |  | $ | 6,388 |
Cost of solar energy systems and product sales |  | 554 |  |  | 463 |  |  | 1,541 |  |  | 1,552 |
Sales and marketing |  | 12,506 |  |  | 11,453 |  |  | 33,442 |  |  | 38,444 |
Research and development |  | 1,190 |  |  | 1,117 |  |  | 3,334 |  |  | 8,191 |
General and administration |  | 12,950 |  |  | 11,816 |  |  | 34,140 |  |  | 29,381 |
Total |  | $ | 29,591 |  |  | $ | 26,992 |  |  | $ | 79,620 |  |  | $ | 83,956 |

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