Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions		Oct. 31, 2017	Oct. 31, 2016
Statement of Financial Position [Abstract]
Trade accounts receivable, allowance		$ 25.5	$ 15.9
Property, plant and equipment, accumulated depreciation	[1]	136.4	163.4
Other intangible assets, accumulated amortization	[2]	$ 189.1	$ 157.0
Preferred stock, par value (usd per share)		$ 0.01	$ 0.01
Preferred stock, shares authorized		500,000	500,000
Preferred stock, shares issued		0	0
Common stock, par value (usd per share)		$ 0.01	$ 0.01
Common stock, shares authorized		100,000,000	100,000,000
Common stock, shares issued		65,502,568	55,599,322
Common stock, shares outstanding		65,502,568	55,599,322

[1] For 2017, 2016, and 2015, depreciation expense was $38.5 million, $32.6 million, and $32.8 million, respectively.

[2] These intangible assets are being amortized over the expected period of benefit, with a weighted average life of approximately 13 years.