Intangible Assets (Narrative) (Details)	3 Months Ended
	Jan. 31, 2018 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, Impairment Loss	$ 0
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2018	144,800,000
2019	142,600,000
2020	132,300,000
2021	130,800,000
2022	$ 128,800,000