Consolidated Statements of Earnings and Comprehensive Income (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
Net sales	$ 3,224.5		$ 2,527.7		$ 2,258.1
Cost and expenses:
Cost of goods sold	2,547.4		1,999.0		1,767.8
Selling and administrative expenses	376.6		310.5		274.3
Research and development expenses	28.7		23.2		16.4
Gain related to fire settlement (Note 7)					(27.0)
Other (income) expense, net	(3.3)		(1.1)		14.7
Earnings before interest and income taxes	275.1		196.1		211.9
Interest expense, net	21.2		8.3		9.0
Earnings before income taxes from continuing operations	253.9		187.8		202.9
Income tax expense (Note 8)	72.0		57.2		47.6
Income from continuing operations	181.9		130.6		155.3
Discontinued operations (Note 4)
Income (loss) from discontinued operations	(2.5)		16.3		(17.4)
Income tax (benefit) expense	(0.9)		1.3		(6.7)
Income (loss) from discontinued operations	(1.6)		15.0		(10.7)
Net income	180.3		145.6		144.6
Basic earnings (loss) per share attributable to common shares
Income from continuing operations (in dollars per share)	$ 2.93	[1]	$ 2.12	[1]	$ 2.53	[1]
Income (loss) from discontinued operations (in dollars per share)	$ (0.02)	[1]	$ 0.24	[1]	$ (0.17)	[1]
Basic Earnings per share (in dollars per share)	$ 2.91	[1]	$ 2.36	[1]	$ 2.36	[1]
Diluted earnings (loss) per share attributable to common shares
Income from continuing operations (in dollars per share)	$ 2.88	[1]	$ 2.10	[1]	$ 2.51	[1]
Income (loss) from discontinued operations (in dollars per share)	$ (0.02)	[1]	$ 0.24	[1]	$ (0.17)	[1]
Diluted earnings per share (in dollars per share)	$ 2.86	[1]	$ 2.34	[1]	$ 2.34	[1]
Comprehensive Income
Net income	180.3		145.6		144.6
Other comprehensive income (loss)
Change in foreign currency translation, net of tax	(12.2)		(5.9)		7.8
Change in accrued post-retirement benefit liability, net of tax	5.7		2.9		(2.6)
Loss on hedging activities, net of tax	(0.4)		(0.4)		(0.4)
Other comprehensive income (loss)	(6.9)		(3.4)		4.8
Comprehensive income	$ 173.4		$ 142.2		$ 149.4

[1] Earning per share calculated based on the two-class method. See Note 9 for detailed calculations.