Benefit Plans Employee Tax-Deferred Savings Plan (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Employer Matching Contribution Percentage	2.00%
Defined Contribution Plan, Cost Recognized	$ 0.6	$ 0.4	$ 0.3