Goodwill and Intangible Assets - Amortization Expense Related to Intangible Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible expense	$ 103,782	$ 129,263	$ 111,708
Core/developed technology
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible expense	56,163	78,820	65,916
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible expense	37,533	37,395	27,340
Contract rights intangible
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible expense	3,581	4,906	10,886
Trademarks and trade names
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible expense	3,637	4,543	3,580
Capitalized software development costs
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible expense	$ 2,868	$ 3,599	$ 3,986