Condensed Unaudited Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2019	Jul. 31, 2018
Income Statement [Abstract]
Net sales	$ 617.0	$ 597.7	$ 1,750.8	$ 1,721.4
Cost of sales	545.7	518.2	1,560.7	1,516.6
Gross profit	71.3	79.5	190.1	204.8
Operating expenses:
Selling, general and administrative	48.9	43.5	145.3	133.2
Research and development costs	1.2	1.6	3.7	4.9
Amortization of intangible assets	4.0	4.6	13.2	13.6
Restructuring	1.3	0.9	4.2	6.9
Impairment charges			2.8
Total operating expenses	55.4	50.6	169.2	158.6
Operating income	15.9	28.9	20.9	46.2
Interest expense, net	8.4	6.8	24.2	18.3
Income (loss) before provision (benefit) for income taxes	7.5	22.1	(3.3)	27.9
Provision (benefit) for income taxes	1.9	3.8	0.0	(7.2)
Net income (loss)	5.6	18.3	(3.3)	35.1
Other comprehensive loss, net of tax		(0.4)	(0.2)	(1.2)
Comprehensive income (loss)	$ 5.6	$ 17.9	$ (3.5)	$ 33.9
Income (loss) per common share:
Basic	$ 0.09	$ 0.29	$ (0.05)	$ 0.55
Diluted	0.09	0.28	(0.05)	0.53
Dividends declared per common share	$ 0.05	$ 0.05	$ 0.15	$ 0.15