Consolidated Condensed Balance Sheets (Parenthetical) - USD ($) $ in Millions	Jan. 31, 2020	Oct. 31, 2019
Statement of Financial Position [Abstract]
Trade accounts receivable, allowance for doubtful accounts	$ 15.2	$ 16.4
Preferred stock, par value (in dollars per share)	$ 0.1	$ 0.1
Preferred stock, authorized (in shares)	1,000,000	1,000,000
Preferred stock, issued (in shares)	0	0
Preferred stock, outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.1	$ 0.1
Common stock, authorized (in shares)	120,000,000	120,000,000
Common stock, issued (in shares)	53,300,000	53,200,000
Treasury stock (in shares)	4,100,000	4,100,000