Condensed Unaudited Consolidated Statements of Operations and Comprehensive (Loss) Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Income Statement [Abstract]
Net sales	$ 582.2	$ 617.0	$ 1,661.3	$ 1,750.8
Cost of sales	515.7	545.7	1,495.0	1,560.7
Gross profit	66.5	71.3	166.3	190.1
Operating expenses:
Selling, general and administrative	53.5	48.9	157.6	145.3
Research and development costs	1.7	1.2	4.4	3.7
Amortization of intangible assets	3.0	4.0	10.4	13.2
Restructuring	2.5	1.3	6.0	4.2
Impairment charges	3.7		3.7	2.8
Total operating expenses	64.4	55.4	182.1	169.2
Operating income (loss)	2.1	15.9	(15.8)	20.9
Interest expense, net	5.7	8.4	20.3	24.2
Loss on sale of business	0.5		9.3
Gain on acquisition of business			(11.9)
(Loss) income before (benefit) provision for income taxes	(4.1)	7.5	(33.5)	(3.3)
(Benefit) provision for income taxes	(0.5)	1.9	(13.2)
Net (loss) income	(3.6)	5.6	(20.3)	(3.3)
Other comprehensive loss, net of tax	(0.8)		(0.9)	(0.2)
Comprehensive (loss) income	$ (4.4)	$ 5.6	$ (21.2)	$ (3.5)
Net (loss) income per common share:
Basic	$ (0.06)	$ 0.09	$ (0.32)	$ (0.05)
Diluted	$ (0.06)	0.09	(0.32)	(0.05)
Dividends declared per common share		$ 0.05	$ 0.10	$ 0.15