Revenue, Deferred Revenue and Remaining Performance Obligations - Deferred Contract Acquisition Costs (Details) - USD ($) $ in Thousands |
12 Months Ended | |||
|---|---|---|---|---|
Jan. 31, 2021 |
Jan. 31, 2020 |
Jan. 31, 2021 |
Jan. 31, 2020 |
|
| Capitalized Contract Cost [Roll Forward] | ||||
| Beginning balance | $ 114,206 | $ 38,765 | ||
| Adjustment due to adoption of ASU 606 | 0 | 24,306 | ||
| Capitalization of contract acquisition costs | 150,975 | 86,594 | ||
| Amortization of deferred contract acquisition costs | (66,425) | (35,459) | ||
| Ending balance | 198,756 | 114,206 | ||
| Deferred contract acquisition costs, current | $ 80,850 | $ 42,971 | ||
| Deferred contract acquisition costs, noncurrent | 117,906 | 71,235 | ||
| Total deferred contract acquisition costs | $ 114,206 | $ 114,206 | $ 198,756 | $ 114,206 |