Geographic Information (Details) $ in Thousands |
3 Months Ended | ||
|---|---|---|---|
|
Apr. 30, 2019
USD ($)
segment
|
Apr. 30, 2018
USD ($)
|
Jan. 31, 2019
USD ($)
|
|
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||
| Number of operating segments | segment | 1 | ||
| Number of reportable segments | segment | 1 | ||
| Total revenue | $ 213,962 | $ 155,808 | |
| Total property and equipment | 84,094 | $ 75,832 | |
| U.S. | |||
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||
| Total revenue | 176,266 | 129,814 | |
| Total property and equipment | 70,291 | 60,625 | |
| International | |||
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||
| Total revenue | 37,696 | $ 25,994 | |
| Total property and equipment | $ 13,803 | $ 15,207 | |