Stockholders' Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2025	Jul. 31, 2024	Mar. 31, 2017
Stockholders' Equity Note [Abstract]
Share repurchase program, authorized amount for repurchase					$ 1,000.0
Share repurchase program, remaining authorized amount for repurchase	$ 163.6		$ 163.6
Stock repurchase (in shares)	700,000	0	1,200,000	0
Treasury stock repurchase	$ 52.2		$ 92.8
Stock repurchase at an average price (in dollars per share)	$ 71.97		$ 73.51