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Condensed Unaudited Consolidated Statements of Operations and Comprehensive (Loss) Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2020	Apr. 30, 2019
Income Statement [Abstract]
Net sales	$ 547.0	$ 615.0	$ 1,079.1	$ 1,133.7
Cost of sales	494.6	542.6	979.3	1,015.0
Gross profit	52.4	72.4	99.8	118.7
Operating expenses:
Selling, general and administrative	54.9	48.6	100.9	96.3
Research and development costs	1.5	1.2	2.7	2.5
Amortization of intangible assets	3.4	4.6	7.4	9.3
Restructuring	6.1	1.8	6.7	2.9
Impairment charges		0.1		2.8
Total operating expenses	65.9	56.3	117.7	113.8
Operating (loss) income	(13.5)	16.1	(17.9)	4.9
Interest expense, net	7.3	8.0	14.6	15.8
Loss on sale of business	8.8		8.8
Gain on acquisition of business	(11.9)		(11.9)
(Loss) income before (benefit) provision for income taxes	(17.7)	8.1	(29.4)	(10.9)
(Benefit) provision for income taxes	(10.1)	2.5	(12.7)	(1.9)
Net (loss) income	(7.6)	5.6	(16.7)	(9.0)
Other comprehensive loss, net of tax	(0.1)	(0.2)	(0.1)	(0.2)
Comprehensive (loss) income	$ (7.7)	$ 5.4	$ (16.8)	$ (9.2)
(Loss) income per common share:
Basic	$ (0.12)	$ 0.09	$ (0.27)	$ (0.14)
Diluted	(0.12)	0.09	(0.27)	(0.14)
Dividends declared per common share	$ 0.05	$ 0.05	$ 0.10	$ 0.10

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