Summary of Significant Accounting Policies - Goodwill and Intangible Assets (Details)	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016
Trademarks
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	20 years
Minimum [Member] | Customer base and relationships
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life		3 years
Minimum [Member] | Other
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life		3 years
Maximum [Member] | Customer base and relationships
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life		15 years
Maximum [Member] | Other
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life		18 years