Revenue, Deferred Revenue and Deferred Commissions - Deferred Revenue, by Arrangement, Disclosure (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2022	Jan. 31, 2022		Oct. 31, 2021
Movement in Deferred Commissions [Roll Forward]
Deferred commissions, beginning balance	$ 356,751	$ 349,645		$ 343,420
Additions	45,580	61,345	[1]	60,187	[1]
Revenue/commissions recognized	(48,534)	(54,239)		(53,962)
Deferred commissions, ending balance	353,797	356,751		349,645
Deferred revenue, beginning balance	1,386,871	1,333,334		1,312,923
Additions	448,767	466,618	[1]	398,928	[1]
Revenue/commissions recognized	(403,658)	(413,081)		(378,517)
Deferred revenue, ending balance	$ 1,431,980	$ 1,386,871		$ 1,333,334

[1] Includes both billed and unbilled amounts.