Consolidated Condensed Balance Sheets (Parenthetical) - USD ($) $ in Millions	Jul. 31, 2018	Oct. 31, 2017
Statement of Financial Position [Abstract]
Trade accounts receivable, allowance for doubtful accounts	$ 18.5	$ 10.8
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	52,700,000	52,400,000
Treasury stock, shares	3,600,000	3,600,000