Statements of Consolidated Income (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Net sales	$ 337.4		$ 365.4
Cost of products sold:
Cost of products sold, excluding depreciation and amortization and other items	263.6		298.1
Unrealized losses (gains) on derivative instruments	0.7		(3.1)
Depreciation and amortization	7.0		6.3
Selling, administrative, research and development, and general (includes $1.4 and $1.8 accumulated other comprehensive income reclassifications related to VEBA adjustments for the quarters ended March 31, 2013 and March 31, 2012, respectively)	16.1		17.9
Total costs and expenses	287.4		319.2
Operating income	50.0		46.2
Other (expense) income:
Interest expense	(9.3)		(4.1)
Other income, net (includes $0.4 accumulated other comprehensive income reclassifications for realized gains on available for sale securities for the quarter ended March 31, 2013)	1.0		0.7
Income before income taxes	41.7		42.8
Income tax provision (includes ($0.4) and ($0.7) of aggregate income tax expense from reclassification items for the quarters ended March 31, 2013 and March 31, 2012, respectively)	(8.2)		(16.3)
Net income	$ 33.5		$ 26.5
Earnings per common share, Basic:
Net income per share	$ 1.75		$ 1.39
Earnings per common share, Diluted:
Net income per share	$ 1.73		$ 1.38
Weighted-average number of common shares outstanding (in thousands):
Basic	19,143	[1]	19,059	[1]
Diluted	19,366	[1]	19,161	[1]

[1] The basic weighted-average number of common shares outstanding during the period excludes unvested share-based payment awards. The diluted weighted-average number of common shares outstanding during the period is calculated using the treasury method.