Employee Benefit Plans - Defined Contribution Plans (Details) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
|
Oct. 31, 2016
USD ($)
defined_contribution_plan
|
Oct. 31, 2015
USD ($)
|
Oct. 31, 2014
USD ($)
|
|
| Compensation and Retirement Disclosure [Abstract] | |||
| Number of Defined Contribution Plans | defined_contribution_plan | 3 | ||
| Cost Recognized | $ | $ 11.7 | $ 12.1 | $ 10.0 |