Stock-Based Compensation - Summarized Activity Related to Stock Options (Detail) - Stock Options $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Jan. 31, 2022 USD ($) $ / shares shares
Number of Options
Beginning balance (in shares) | shares	1,235
Granted (in shares) | shares	83
Exercised (in shares) | shares	(48)
Forfeited or expired (in shares) | shares	(3)
Ending balance (in shares) | shares	1,267
Expected to vest (in shares) | shares	391
Exercisable (in shares) | shares	873
Weighted- Average Exercise Price  Per Share
Beginning balance (in dollars per share) | $ / shares	$ 130.93
Granted (in dollars per share) | $ / shares	267.51
Exercised (in dollars per share) | $ / shares	120.27
Forfeited or expired (in dollars per share) | $ / shares	140.47
Ending balance (in dollars per share) | $ / shares	140.29
Expected to vest (in dollars per share) | $ / shares	186.03
Exercisable (in dollars per share) | $ / shares	$ 119.62
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Aggregate Intrinsic Value, Outstanding | $	$ 119,828
Aggregate Intrinsic Value, Expected to vest | $	21,069
Aggregate Intrinsic Value, Exercisable | $	$ 98,565
Weighted Average Remaining Term, Outstanding	6 years 1 month 6 days
Weighted Average Remaining Term, Expected to vest	7 years 10 months 24 days
Weighted Average Remaining Term, Exercisable	5 years 2 months 12 days