Summary of Significant Accounting Policies and Basis of Presentation - Additional Information (Detail)	3 Months Ended	12 Months Ended
	Jan. 31, 2023 segment	Oct. 31, 2023 USD ($) segment	Oct. 31, 2022 USD ($) segment	Oct. 31, 2021 USD ($)	Oct. 31, 2020 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Number of reportable segments | segment	3	3	2
Cash and cash equivalent maturity period, months		3 months
Debt securities and other investments, minimum short term maturity, period		3 months
Debt securities and other investments, maximum maturity, period		3 years
Depreciation expenses		$ 145,100,000	$ 107,700,000	$ 119,100,000
Repair and maintenance costs		84,000,000	72,900,000	62,600,000
Goodwill impairment loss		0	0	0
Long-lived assets impairment loss		$ 0	0	0
Software product warranty period (in days)		90 days
Stockholders' equity		$ (6,153,258,000)	(5,520,526,000)	(5,298,943,000)	$ (4,912,367,000)
Retained Earnings
Summary Of Significant Accounting Policies [Line Items]
Stockholders' equity		$ (6,741,699,000)	$ (5,534,307,000)	$ (4,549,713,000)	(3,795,397,000)
Cumulative Effect, Period Of Adoption, Adjustment | Adjustment Due To Adoption Of Accounting Standards Related To Credit Losses
Summary Of Significant Accounting Policies [Line Items]
Stockholders' equity					3,200,000
Cumulative Effect, Period Of Adoption, Adjustment | Adjustment Due To Adoption Of Accounting Standards Related To Credit Losses | Retained Earnings
Summary Of Significant Accounting Policies [Line Items]
Stockholders' equity					$ 3,200,000
Maximum
Summary Of Significant Accounting Policies [Line Items]
Hardware product warranty period (in months)		6 months
Intangible Assets | Minimum
Summary Of Significant Accounting Policies [Line Items]
Intangible assets amortization period		1 year
Intangible Assets | Maximum
Summary Of Significant Accounting Policies [Line Items]
Intangible assets amortization period		10 years