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Equity Plans and Stock-based Compensation (Tables) | 12 Months Ended
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Jan. 31, 2026
Share-Based Payment Arrangement [Abstract] |
Schedule of Stock-based Compensation Expense | The following sets forth the total stock-based compensation expense for employee equity plans included in the Company’s consolidated statements of operations:
| Year Ended January 31,
| 2026 |  | 2025 |  | 2024
| (in thousands)
Cost of revenue | $ | 4,702 |  |  | $ | 5,102 |  |  | $ | 6,154 |
Research and development | 31,161 |  |  | 37,050 |  |  | 50,935 |
Sales and marketing | 11,058 |  |  | 15,875 |  |  | 22,934 |
General and administrative | 17,773 |  |  | 17,624 |  |  | 37,314 |
Total stock-based compensation expense | $ | 64,694 |  |  | $ | 75,651 |  |  | $ | 117,337 |
Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity | The 2021 EIP provides for the issuance of RSUs to employees and directors. A summary of activity of RSUs under the 2021 EIP at January 31, 2026 and changes during the periods then ended is presented in the following table, adjusted on a retroactive basis to reflect the Reverse Stock Split as discussed in Note 1, Description of Business and Basis of Presentation:
| Number of Shares |  | Weighted Average Grant Date Fair Value per Share
Outstanding as of January 31, 2025 | 1,827,940 |  |  | $ | 57.32 |
RSU granted | 1,971,733 |  |  | $ | 12.42 |
RSU vested | (1,145,673) |  |  | $ | 49.95 |
RSU forfeited | (458,703) |  |  | $ | 29.92 |
Outstanding as of January 31, 2026 | 2,195,297 |  |  | $ | 26.56 |
A summary of activity of PRSUs under the 2021 EIP at January 31, 2026 and changes during the periods then ended is presented in the following table, adjusted on a retroactive basis to reflect the Reverse Stock Split as discussed in Note 1, Description of Business and Basis of Presentation:
| Number of Shares |  | Weighted Average Grant Date Fair Value per Share
Outstanding as of January 31, 2025 | 186,646 |  |  | $ | 47.75 |
PRSU granted | 348,187 |  |  | $ | 12.52 |
PRSU forfeited | (89,900) |  |  | $ | 32.70 |
Outstanding as of January 31, 2026 | 444,933 |  |  | $ | 23.22 |
Share-based Payment Arrangement, Option, Activity | A summary of option activity under the 2017 and 2007 Plans at January 31, 2026 and changes during the periods then ended is presented in the following table, adjusted on a retroactive basis to reflect the Reverse Stock Split as discussed in Note 1, Description of Business and Basis of Presentation:
| Number of Stock Option Awards |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual term (in years) |  | Aggregate Intrinsic Value (in thousands)
Outstanding as of January 31, 2025 | 135,179 |  |  | $ | 15.34 |  |  | 3.9 |  | $ | 528 |
Exercised | (4,004) |  |  | $ | 11.95 |  |  |  |  |
Cancelled | (12,419) |  |  | $ | 14.90 |  |  |  |  |
Outstanding as of January 31, 2026 | 118,756 |  |  | $ | 15.51 |  |  | 3.1 |  | $ | — |
Options vested and expected to vest as of January 31, 2026 | 118,756 |  |  | $ | 15.51 |  |  | 3.1 |  | $ | — |
Exercisable as of January 31, 2026 | 118,756 |  |  | $ | 15.51 |  |  | 3.1 |  | $ | — |
Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions | The weighted-average assumptions in the Black-Scholes option-pricing models used to determine the fair value of ESPP rights granted during the year ended January 31, 2026, 2025 and 2024 were as follows:
| Year Ended January 31,
| 2026 |  | 2025 |  | 2024
Expected volatility | 78.8% - 97.8% |  | 83.2% - 100.3% |  | 62.3% - 70.8%
Risk-free interest rate | 3.5% - 5.2% |  | 3.5% - 5.2% |  | 4.5% - 5.4%
Dividend rate | 0.0% |  | 0.0% |  | 0.0%
Expected term (in years) | 0.5 - 2.0 |  | 0.5 - 2.0 |  | 0.5 - 2.0
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions | The weighted-average assumptions in the Monte Carlo valuation model used to determine the fair value of PRSUs granted during the year ended January 31, 2025, and 2024 were as follows:
|  |  | Year Ended January 31,
|  |  | 2025 |  | 2024
Expected volatility |  |  | 81.7% - 84.8% |  | 68.4% - 82.4%
Risk-free interest rate |  |  | 3.6% - 4.3% |  | 4.0% - 4.3%
Dividend rate |  |  | 0.0% |  | 0.0%
Expected term (in years) |  |  | 1.1 - 3.1 |  | 0.9 - 3.1

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