Stock-Based Compensation - Summarized Information on Currently Outstanding Options (Detail) shares in Thousands	12 Months Ended
	Oct. 31, 2021 $ / shares shares
$43 - $90
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise price range, Lower range limit (in dollars per share)	$ 43
Exercise price range, Upper range limit (in dollars per share)	90
$91 - $140
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise price range, Lower range limit (in dollars per share)	91
Exercise price range, Upper range limit (in dollars per share)	140
$141 - $201
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise price range, Lower range limit (in dollars per share)	141
Exercise price range, Upper range limit (in dollars per share)	$ 201
Stock Options | $43 - $90
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Number outstanding (in shares) | shares	204
Weighted-average remaining contractual life, in years	3 years 1 month 6 days
Weighted-average exercise price (in dollars per share)	$ 71.82
Number exercisable (in shares) | shares	204
Weighted-average exercise price (in dollars per share)	$ 71.82
Stock Options | $91 - $140
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Number outstanding (in shares) | shares	626
Weighted-average remaining contractual life, in years	6 years 3 months 18 days
Weighted-average exercise price (in dollars per share)	$ 122.31
Number exercisable (in shares) | shares	399
Weighted-average exercise price (in dollars per share)	$ 120.24
Stock Options | $141 - $201
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Number outstanding (in shares) | shares	405
Weighted-average remaining contractual life, in years	8 years 3 months 18 days
Weighted-average exercise price (in dollars per share)	$ 174.09
Number exercisable (in shares) | shares	68
Weighted-average exercise price (in dollars per share)	$ 167.15