Statement of Comprehensive Loss Statement - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Apr. 30, 2018 |
Apr. 30, 2017 |
Apr. 30, 2018 |
Apr. 30, 2017 |
|
| Statement Of Income And Comprehensive Income [Abstract] | ||||
| Net loss | $ (13,174) | $ (13,238) | $ (17,357) | $ (26,923) |
| Foreign currency translation adjustments | 54 | 32 | 87 | (38) |
| Total comprehensive loss | $ (13,120) | $ (13,206) | $ (17,270) | $ (26,961) |