Geographic Information (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Apr. 30, 2017 |
Apr. 30, 2016 |
Apr. 30, 2017 |
Apr. 30, 2016 |
Oct. 31, 2016 |
|
| Geographic Information About Revenues and Long-Lived Assets [Line Items] | |||||
| Revenue | $ 374,632 | $ 323,290 | $ 729,591 | $ 654,846 | |
| US [Member] | |||||
| Geographic Information About Revenues and Long-Lived Assets [Line Items] | |||||
| Revenue | 359,342 | 310,751 | 699,902 | 629,860 | |
| Long-Lived Assets | 44,141 | 44,141 | $ 42,153 | ||
| Non-US [Member] | |||||
| Geographic Information About Revenues and Long-Lived Assets [Line Items] | |||||
| Revenue | 15,290 | 12,539 | 29,689 | 24,986 | |
| Long-Lived Assets | 2,200 | 2,200 | 2,274 | ||
| Total [Member] | |||||
| Geographic Information About Revenues and Long-Lived Assets [Line Items] | |||||
| Revenue | 374,632 | $ 323,290 | 729,591 | $ 654,846 | |
| Long-Lived Assets | $ 46,341 | $ 46,341 | $ 44,427 | ||