Intangible Assets (Narrative) (Details)	9 Months Ended
	Jul. 31, 2017 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, Impairment Loss	$ 0
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2017	67,700,000
2018	66,300,000
2019	63,900,000
2020	53,900,000
2021	$ 52,400,000