Balance Sheet Components - Intangible Assets (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Jan. 31, 2022 |
Jan. 31, 2021 |
|
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | $ 112,110 | $ 18,681 |
| Accumulated Amortization | 14,774 | 3,004 |
| Net Amount | 97,336 | 15,677 |
| Developed technology | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | 97,668 | 14,513 |
| Accumulated Amortization | 12,000 | 2,193 |
| Net Amount | $ 85,668 | $ 12,320 |
| Weighted-Average Remaining Useful Life | 79 months | 56 months |
| Customer relationships | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | $ 12,045 | $ 3,769 |
| Accumulated Amortization | 1,973 | 649 |
| Net Amount | $ 10,072 | $ 3,120 |
| Weighted-Average Remaining Useful Life | 72 months | 54 months |
| Other acquired intangible assets | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | $ 2,397 | $ 399 |
| Accumulated Amortization | 801 | 162 |
| Net Amount | $ 1,596 | $ 237 |
| Weighted-Average Remaining Useful Life | 89 months | 185 months |