Employee Benefit Plans - Stock Compensation Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock compensation expense before taxes	$ 563,292	$ 459,029	$ 345,272
Income tax benefit	(90,915)	(74,271)	(53,483)
Stock compensation expense after taxes	472,377	384,758	291,789
Cost of products
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock compensation expense before taxes	65,221	55,134	38,345
Cost of maintenance and service
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock compensation expense before taxes	29,572	24,146	13,817
Research and development expense
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock compensation expense before taxes	294,154	241,978	171,013
Sales and marketing expense
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock compensation expense before taxes	106,574	81,617	61,940
General and administrative expense
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock compensation expense before taxes	$ 67,771	$ 56,154	$ 60,157