Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Millions	Jul. 31, 2018	Oct. 31, 2017
Statement of Financial Position [Abstract]
Trade accounts receivable, allowance	$ 14.1	$ 25.5
Property, plant and equipment, accumulated depreciation	163.8	136.4
Other intangible assets, accumulated amortization	$ 238.4	$ 189.1
Preferred stock, par value (in usd per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	500,000	500,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	65,833,297	65,502,568
Common stock, shares outstanding (in shares)	65,833,297	65,502,568