Goodwill and Intangible Assets - Summary of Intangible Assets (Detail) - USD ($) $ in Thousands	Jan. 31, 2022	Oct. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,603,777	$ 1,598,984
Accumulated Amortization	1,342,967	1,319,852
Intangible Assets, Net	260,810	279,132
Core/developed technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	916,202	911,903
Accumulated Amortization	761,605	748,759
Intangible Assets, Net	154,597	163,144
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	404,571	404,571
Accumulated Amortization	316,544	308,355
Intangible Assets, Net	88,027	96,216
Contract rights intangible
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	193,317	193,317
Accumulated Amortization	188,958	188,231
Intangible Assets, Net	4,359	5,086
Trademarks and trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	43,095	43,095
Accumulated Amortization	31,755	31,155
Intangible Assets, Net	11,340	11,940
Capitalized software development costs
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	46,592	46,098
Accumulated Amortization	44,105	43,352
Intangible Assets, Net	$ 2,487	$ 2,746