Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	May 31, 2019	May 31, 2018	May 31, 2019	May 31, 2018
Income Statement [Abstract]
Net sales	$ 205.7	$ 206.3	$ 374.6	$ 385.0
Cost of goods sold (exclusive of depreciation)	156.9	154.7	288.8	286.8
Gross profit	48.8	51.6	85.8	98.2
Selling, general and administrative	30.2	28.0	58.9	57.1
Depreciation and amortization	7.8	7.3	15.9	14.5
Asset impairments	0.0	0.4	0.0	0.4
(Gain) loss on asset sales	4.2	0.0	4.1	0.0
Restructuring and severance	2.8	0.2	3.9	1.5
Interest expense	5.2	4.6	10.2	9.7
Debt issuance costs write-off	0.0	0.0	0.0	0.8
Acquisition and integration related expense	0.0	0.3	0.3	0.9
Other (income) expense, net	(0.2)	(0.1)	(1.1)	0.2
Total other costs and expenses	41.6	40.7	84.0	85.1
Income (loss) before income taxes	7.2	10.9	1.8	13.1
Income tax (benefit) expense	1.6	2.5	0.8	(2.6)
Net income (loss)	$ 5.6	$ 8.4	$ 1.0	$ 15.7
Earnings Per Share
Net income (loss) per share - Basic	$ 0.13	$ 0.19	$ 0.02	$ 0.35
Net income (loss) per share - Diluted	$ 0.12	$ 0.19	$ 0.02	$ 0.35
Weighted average shares outstanding - Basic	44.8	44.6	44.7	44.6
Weighted average shares outstanding - Diluted	45.6	44.9	45.6	44.9