Consolidated Statements of Stockholders' Equity - USD ($) $ in Millions	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Loss, Net of Taxes	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment
Balance, beginning of year (in shares) at Oct. 31, 2018		66,000,000.0
Balance, beginning of year at Oct. 31, 2018		$ 0.7	$ 691.8	$ (9.0)	$ 771.2	$ 6.5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issued under employee stock purchase and share-based compensation plans (in shares)		600,000
Taxes withheld under employee stock purchase and share-based compensation plans, net		$ 0.0	(0.3)
Repurchase of common stock (in shares)		0
Repurchase of common stock		$ 0.0	0.0
Share-based compensation expense			17.5
Other comprehensive income (loss)				(14.9)
Net income	$ 127.4				127.4
Dividends
Common stock ($0.760, $0.740, and $0.720 per share)					(47.7)
Stock issued under share-based compensation plans					(1.0)
Balance, end of year (in shares) at Oct. 31, 2019		66,600,000
Balance, end of year at Oct. 31, 2019	$ 1,542.0	$ 0.7	708.9	(23.9)	856.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issued under employee stock purchase and share-based compensation plans (in shares)		300,000
Taxes withheld under employee stock purchase and share-based compensation plans, net		$ 0.0	0.0
Repurchase of common stock (in shares)	(200,000)	(200,000)
Repurchase of common stock	$ (5.1)	$ 0.0	(5.1)
Share-based compensation expense			20.3
Other comprehensive income (loss)				(6.9)
Net income	0.3				0.3
Dividends
Common stock ($0.760, $0.740, and $0.720 per share)					(49.3)
Stock issued under share-based compensation plans					(0.9)
Balance, end of year (in shares) at Oct. 31, 2020		66,700,000
Balance, end of year at Oct. 31, 2020	$ 1,500.3	$ 0.7	724.1	(30.8)	806.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issued under employee stock purchase and share-based compensation plans (in shares)		600,000
Taxes withheld under employee stock purchase and share-based compensation plans, net		$ 0.0	(6.7)
Repurchase of common stock (in shares)	0	0
Repurchase of common stock	$ 0.0	$ 0.0	0.0
Share-based compensation expense			33.5
Other comprehensive income (loss)				8.2
Net income	126.3				126.3
Dividends
Common stock ($0.760, $0.740, and $0.720 per share)					(51.0)
Stock issued under share-based compensation plans					(1.5)
Balance, end of year (in shares) at Oct. 31, 2021		67,300,000
Balance, end of year at Oct. 31, 2021	$ 1,609.2	$ 0.7	$ 750.9	$ (22.5)	$ 880.2