Stock-Based Compensation Plans - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Oct. 31, 2020	Oct. 31, 2019
Stock Option Awards
Outstanding at the beginning of the period (in shares)	2,848,120
Granted (in shares)	536,890
Exercised (in shares)	(734,398)
Forfeited (in shares)	(4,009)
Outstanding at the end of the period (in shares)	2,646,603	2,848,120
Exercisable at the end of the period (in shares)	1,609,770
Weighted-Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 44.34
Granted (in dollars per share)	76.07
Exercised (in dollars per share)	31.10
Forfeited (in dollars per share)	75.23
Outstanding at the end of the period (in dollars per share)	54.40	$ 44.34
Exercisable at the end of the period (in dollars per share)	$ 45.22
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Weighted-average contractual life (years)	6 years 2 months 12 days	5 years 8 months 12 days
Exercisable at the end of the period (years)	4 years 9 months 18 days
Outstanding of the beginning of the period, intrinsic value	$ 93,392
Outstanding of the end of the period, intrinsic value	73,305	$ 93,392
Exercisable at the end of the period, intrinsic value	$ 59,364