Stock-Based Compensation - Stock Compensation Expense (Detail) - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2023	Jan. 31, 2022
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense before taxes	$ 134,227	$ 95,771
Income tax benefit	(21,570)	(15,429)
Stock-based compensation expense after taxes	112,657	80,342
Cost of products
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense before taxes	16,029	11,207
Cost of maintenance and service
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense before taxes	7,155	4,583
Research and development expense
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense before taxes	69,231	49,540
Sales and marketing expense
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense before taxes	24,907	17,801
General and administrative expense
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense before taxes	$ 16,905	$ 12,640