Revenue, Deferred Revenue and Remaining Performance Obligations - Deferred Contract Acquisition Costs (Details) - USD ($) $ in Thousands |
3 Months Ended | ||||
|---|---|---|---|---|---|
Apr. 30, 2021 |
Apr. 30, 2020 |
Apr. 30, 2021 |
Jan. 31, 2021 |
Apr. 30, 2020 |
|
| Movement in Deferred Contract Acquisition Costs [Roll Forward] | |||||
| Beginning balance | $ 198,756 | $ 114,206 | |||
| Capitalization of contract acquisition costs | 36,400 | 22,563 | |||
| Amortization of deferred contract acquisition costs | (24,376) | (13,451) | |||
| Ending balance | 210,780 | 123,318 | |||
| Deferred contract acquisition costs, current | $ 85,388 | $ 80,850 | $ 53,410 | ||
| Deferred contract acquisition costs, noncurrent | 125,392 | 117,906 | 69,908 | ||
| Total deferred contract acquisition costs | $ 210,780 | $ 123,318 | $ 210,780 | $ 198,756 | $ 123,318 |