Revenue, Deferred Revenue and Deferred Commissions - Deferred Revenue, by Arrangement, Disclosure (Details) - USD ($) $ in Thousands		3 Months Ended
		Jan. 31, 2022	Oct. 31, 2021
Movement in Deferred Commissions [Roll Forward]
Deferred commissions, beginning balance		$ 349,645	$ 343,420
Additions	[1]	61,345	60,187
Revenue/commissions recognized		(54,239)	(53,962)
Deferred commissions, ending balance		356,751	349,645
Deferred revenue, beginning balance		1,333,334	1,312,923
Additions	[1]	466,618	398,928
Revenue/commissions recognized		(413,081)	(378,517)
Deferred revenue, ending balance		$ 1,386,871	$ 1,333,334

[1] Includes both billed and unbilled amounts.