Consolidated Condensed Balance Sheets (Parenthetical) - USD ($) $ in Millions	Apr. 30, 2019	Oct. 31, 2018
Statement of Financial Position [Abstract]
Trade accounts receivable, allowance for doubtful accounts	$ 17.2	$ 19.0
Preferred stock, par value (in dollars per share)	$ 0.1	$ 0.1
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.1	$ 0.1
Common stock, shares authorized	120,000,000	120,000,000
Common stock, shares issued	53,100,000	52,800,000
Treasury stock, shares	3,600,000	3,600,000