Income Taxes - Summary of Tax Valuation Allowance (Detail) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Jan. 31, 2022 |
Jan. 31, 2021 |
Jan. 31, 2020 |
|
| Valuation and Qualifying Accounts Disclosure [Line Items] | |||
| Balance at Beginning of Period | $ 17,962 | ||
| Balance at End of Period | 24,083 | $ 17,962 | |
| Valuation Allowance of Deferred Tax Assets [Member] | |||
| Valuation and Qualifying Accounts Disclosure [Line Items] | |||
| Balance at Beginning of Period | 17,962 | 14,670 | $ 12,526 |
| Additional Charged to Expenses | 4,874 | 3,292 | 2,144 |
| Additions Charged to Other Account | 1,247 | 0 | 0 |
| Deductions Charged to Expenses or Other Accounts | 0 | 0 | 0 |
| Balance at End of Period | $ 24,083 | $ 17,962 | $ 14,670 |