Commitments and Contingencies - Future Minimum Operating Lease and Other Non-Cancellable Agreement Payments (Details) $ in Thousands	Oct. 31, 2017 USD ($)
Operating Leases
Remainder of 2018	$ 2,422
2019	8,235
2020	2,879
2021	2,823
2022	1,523
Thereafter	4,902
Total minimum payments	22,784
Other Obligations
Remainder of 2018	2,771
2019	3,383
2020	2,525
2021	1,279
2022	0
Thereafter	0
Total minimum payments	$ 9,958