Employee Benefit Plans - Stock Option Plans and Stock Purchase Rights Granted Under ESPP (Detail) - $ / shares	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Stock Option
Schedule of Weighted Average Assumptions for Fair Values of Stock Options[Line Items]
Expected life (in years)	4 years 1 month 6 days	4 years 1 month 6 days	4 years 1 month 6 days
Risk-free interest rate, minimum	0.35%	0.26%	1.28%
Risk-free interest rate, maximum	1.00%	1.71%	2.73%
Volatility, minimum	29.19%	23.05%	23.16%
Volatility, maximum	32.28%	32.80%	24.76%
Weighted average estimated fair value (in USD per share)	$ 61.58	$ 33.02	$ 22.86
Employee Stock Purchase Plan
Schedule of Weighted Average Assumptions for Fair Values of Stock Options[Line Items]
Risk-free interest rate, minimum	0.00%	0.09%	1.54%
Risk-free interest rate, maximum	0.19%	1.24%	2.60%
Volatility, minimum	28.02%	25.59%	23.73%
Volatility, maximum	39.68%	43.06%	27.86%
Weighted average estimated fair value (in USD per share)	$ 89.82	$ 47.69	$ 35.18
Employee Stock Purchase Plan | Minimum
Schedule of Weighted Average Assumptions for Fair Values of Stock Options[Line Items]
Expected life (in years)	6 months	6 months	6 months
Employee Stock Purchase Plan | Maximum
Schedule of Weighted Average Assumptions for Fair Values of Stock Options[Line Items]
Expected life (in years)	2 years	2 years	2 years