Income Taxes - Reconciliation of Unrecognized Tax Position (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Jan. 31, 2021 |
Jan. 31, 2020 |
Jan. 31, 2019 |
|
| Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] | |||
| Beginning Balance | $ 8,106 | $ 2,778 | $ 1,976 |
| Increases related to current year’s tax positions | 6,001 | 5,328 | 802 |
| Increases related to prior year’s tax positions | 314 | ||
| Current year acquisitions | 885 | ||
| Lapse of statute of limitations | (422) | ||
| Ending Balance | $ 14,884 | $ 8,106 | $ 2,778 |