Statements of Consolidated Income (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Net sales	$ 319.9		$ 335.5		$ 986.2		$ 1,046.1
Cost of products sold:
Cost of products sold, excluding depreciation and amortization and other items	259.5		268.9		784.6		851.4
Unrealized (gains) losses on derivative instruments	(1.5)		(12.3)		3.4		(15.3)
Depreciation and amortization	6.9		6.7		20.9		19.6
Selling, administrative, research and development, and general (includes accumulated other comprehensive income reclassifications related to VEBA adjustments of $1.3 and $1.8 for the quarters ended September 30, 2013 and September 30, 2012, respectively, and $4.1 and $5.4 for the nine months ended September 30, 2013 and September 30, 2012, respectively)	13.4		16.0		45.6		48.3
Other operating charges, net	0		0		0		0.1
Total costs and expenses	278.3		279.3		854.5		904.1
Operating income	41.6		56.2		131.7		142.0
Other (expense) income:
Interest expense	(8.8)		(9.2)		(27.1)		(19.8)
Other income, net (includes accumulated other comprehensive income reclassifications for realized gains on available for sale securities of $0.2 and $0.8 for the quarter and nine months ended September 30, 2013, respectively)	2.9		0.4		3.1		2.2
Income before income taxes	35.7		47.4		107.7		124.4
Income tax provision (includes aggregate income tax expense from reclassification items of $(0.5) and $(0.7) for the quarters ended September 30, 2013 and September 30, 2012, respectively, and $(1.3) and $(2.1) for the nine months ended September 30, 2013 and September 30, 2012, respectively)	(10.3)		(18.2)		(30.2)		(47.7)
Net income	$ 25.4		$ 29.2		$ 77.5		$ 76.7
Earnings per common share, Basic:
Net income per share	$ 1.37	[1]	$ 1.52	[1]	$ 4.09	[1]	$ 4.01	[1]
Earnings per common share, Diluted:
Net income per share	$ 1.34		$ 1.51		$ 4.02		$ 3.98
Weighted-average number of common shares outstanding (in thousands):
Basic	18,548	[1]	19,154	[1]	18,915	[1]	19,104	[1]
Diluted	19,058		19,288		19,267		19,240
Add: dilutive effect of non-vested common shares, restricted stock units and performance shares	165		134		167		136

[1] The basic weighted-average number of common shares outstanding during the period excludes non-vested common shares, restricted stock units and performance shares. The diluted weighted-average number of common shares outstanding during the period is calculated using the treasury method.