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Benefit Plans Employee Tax-Deferred Savings Plan (Details) - USD ($) $ in Millions | 12 Months Ended
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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

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- Definition The amount of the cost recognized during the period for defined contribution plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 + Details
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