Consolidated Statements of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Nov. 30, 2011	Nov. 30, 2010	Nov. 30, 2009
Consolidated Statements of Operations [Abstract]
Net sales	$ 918.1	$ 857.9	$ 795.4
Operating costs and expenses:
Cost of sales (exclusive of items shown separately below)	799.3	753.9	674.0
Selling, general and administrative	40.9	26.7	10.2
Depreciation and amortization	24.6	27.9	25.7
Other expense, net	8.9	8.5	2.9
Unusual items
Executive severance agreements		1.4	3.1
Loss on bank amendment	1.3	0.7	0.2
Loss on debt repurchased	0.2	1.2
Loss on legal matters and settlements	4.1	2.8	1.3
Gain on legal settlement		(2.7)
Total operating costs and expenses	879.3	820.4	717.4
Operating income	38.8	37.5	78.0
Non-operating (income) expense
Interest expense	30.8	37.0	38.6
Interest income	(1.0)	(1.6)	(1.9)
Total non-operating expense, net	29.8	35.4	36.7
Income from continuing operations before income taxes	9.0	2.1	41.3
Income tax provision (benefit)	6.1	(3.9)	(17.6)
Income from continuing operations	2.9	6.0	58.9
Income (loss) from discontinued operations, net of income taxes		0.8	(6.7)
Net income	$ 2.9	$ 6.8	$ 52.2
Basic:
Income per share from continuing operations	$ 0.05	$ 0.11	$ 1.00
Income (loss) from discontinued operations, net of income taxes		$ 0.01	$ (0.11)
Net income per share	$ 0.05	$ 0.12	$ 0.89
Diluted:
Income per share from continuing operations	$ 0.05	$ 0.11	$ 0.96
Income (loss) from discontinued operations, net of income taxes		$ 0.01	$ (0.10)
Net income per share	$ 0.05	$ 0.12	$ 0.86
Weighted average shares of common stock outstanding	58.7	58.5	58.4
Weighted average shares of common stock outstanding, assuming dilution	58.7	58.6	66.5