Income Taxes - Schedule of Valuation Allowance (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Jan. 31, 2026 |
Jan. 31, 2025 |
Jan. 31, 2024 |
|
| Income Tax Disclosure [Abstract] | |||
| Valuation allowance, beginning of year | $ 284,882 | $ 254,929 | $ 211,813 |
| Change in valuation allowance | 60,913 | 29,953 | 43,116 |
| Valuation allowance, end of year | $ 345,795 | $ 284,882 | $ 254,929 |