Revenue - Contract Balances (Details) - USD ($)	Jul. 31, 2019	Nov. 01, 2018	Oct. 31, 2018
Revenue from Contract with Customer [Abstract]
Accounts receivable, net	$ 798,884,000	$ 799,011,000	$ 786,502,000
Contract assets	74,348	31,380,000
Deferred revenue	$ 145,030,000	$ 140,704,000

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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