CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2017	Apr. 30, 2016	Apr. 30, 2017	Apr. 30, 2016
Income Statement [Abstract]
Revenues	$ 483.4	$ 468.6	$ 940.8	$ 874.5
Cost of goods sold	342.7	330.3	670.4	637.3
Gross profit	140.7	138.3	270.4	237.2
Selling, general and administrative expenses	92.1	74.8	173.2	148.5
Research and development	0.4	0.6	1.1	1.3
Repositioning expenses	1.8	1.3	2.4	2.5
Acquisition and integration costs	8.1	7.6	11.6	10.2
Other operating expense (income)	0.5	1.2	4.1	(3.7)
Operating income	37.8	52.8	78.0	78.4
Interest expense, net	30.8	42.6	59.0	86.4
Foreign exchange loss, net	0.7	7.1	5.5	11.4
Refinancing expenses	6.3	0.0	6.3	0.0
Bargain purchase gain	(26.4)	0.0	(26.4)	0.0
Other loss (income), net	0.3	0.5	0.5	(1.3)
Income (loss) before income taxes	26.1	2.6	33.1	(18.1)
(Benefit from) provision for income taxes	(1.5)	0.7	(22.8)	0.0
Net income (loss) from continuing operations	27.6	1.9	55.9	(18.1)
Net loss from discontinued operations	0.0	(1.0)	0.0	(3.1)
Net income (loss)	$ 27.6	$ 0.9	$ 55.9	$ (21.2)
Basic earnings (loss) per ordinary share
From continuing operations (in USD per share)	$ 0.19	$ 0.02	$ 0.39	$ (0.16)
From discontinued operations (in USD per share)	0.00	(0.01)	0.00	(0.03)
Diluted earnings (loss) per ordinary share
From continuing operations (in USD per share)	0.19	0.02	0.38	(0.16)
From discontinued operations (in USD per share)	$ 0.00	$ (0.01)	$ 0.00	$ (0.03)
Average number of ordinary shares outstanding
Basic (in shares)	145,136,214	115,609,756	145,132,349	115,609,756
Diluted (in shares)	146,267,128	115,609,756	146,276,351	115,609,756