Geographic Information (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|
Oct. 31, 2016 |
Oct. 31, 2015 |
Oct. 31, 2016 |
Oct. 31, 2015 |
Oct. 31, 2014 |
|
| Geographic Information About Revenues and Long-Lived Assets [Line Items] | |||||
| Revenue | $ 346,846 | $ 341,458 | $ 1,342,860 | $ 1,403,563 | $ 1,450,294 |
| US [Member] | |||||
| Geographic Information About Revenues and Long-Lived Assets [Line Items] | |||||
| Revenue | 1,289,830 | 1,340,760 | 1,376,107 | ||
| Long-Lived Assets | 42,153 | 43,596 | 42,153 | 43,596 | 44,279 |
| Non-US [Member] | |||||
| Geographic Information About Revenues and Long-Lived Assets [Line Items] | |||||
| Revenue | 53,030 | 62,803 | 74,187 | ||
| Long-Lived Assets | 2,274 | 1,347 | 2,274 | 1,347 | 1,372 |
| Total [Member] | |||||
| Geographic Information About Revenues and Long-Lived Assets [Line Items] | |||||
| Revenue | 1,342,860 | 1,403,563 | 1,450,294 | ||
| Long-Lived Assets | $ 44,427 | $ 44,943 | $ 44,427 | $ 44,943 | $ 45,651 |