Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2020	Apr. 30, 2019
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Contract with customer, liability, revenue recognized			$ 795,900	$ 674,600
Revenue, remaining performance obligation, amount	$ 4,700,000		4,700,000
Revenue, remaining performance obligation, non-cancellable, amount	$ 652,600		$ 652,600
Revenue, remaining performance obligation, excluding non-cancellable, recognized over twelve month period, percent	57.00%		57.00%
Capitalized contract cost, net	$ 94,400		$ 94,400
Amortization of capitalized costs to obtain revenue contracts	14,500	$ 15,600	28,279	28,425
Sales Based Royalties
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Contract with customer, liability, revenue recognized	$ 34,200	$ 28,500	$ 52,100	$ 47,300