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Summary of Significant Accounting Policies and Related Data - Revenue Recognition (Details) - USD ($) $ in Millions | Oct. 31, 2019 | Oct. 31, 2018
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Accounting Policies [Abstract] |  |
Consignment inventory amount | $ 19.9 | $ 22.7

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- Definition Gross amount of inventory owned by the entity but in the hands of a customer, typically a reseller. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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