Consolidated Statement of Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net sales	$ 507.4	$ 462.1	$ 1,605.5	$ 1,237.3
Operating costs and expenses:
Cost of sales	416.3	364.4	1,221.7	1,026.9
Depreciation and amortization	25.8	18.8	65.0	55.5
Selling and administrative	33.5	30.5	103.6	92.1
(Gain) loss on sale or impairment of long-lived assets, net	0.3	4.3	(0.4)	4.5
Other operating credits and charges, net	(16.1)	1.2	(9.1)	1.2
Total operating costs and expenses	459.8	419.2	1,380.8	1,180.2
Income from operations	47.6	42.9	224.7	57.1
Non-operating income (expense):
Interest expense, net of capitalized interest	(7.6)	(10.7)	(28.0)	(36.4)
Investment income	1.7	4.1	8.3	11.7
Early debt extinguishment	(0.8)	0	(0.8)	(52.2)
Gain on acquisition	0	0	35.9	0
Other non-operating items	1.0	0.4	(3.3)	(2.3)
Total non-operating expense	(5.7)	(6.2)	12.1	(79.2)
Income (loss) from continuing operations before taxes and equity in (income) loss of unconsolidated affiliates	41.9	36.7	236.8	(22.1)
Provision (benefit) for income taxes	4.4	7.7	51.6	(5.6)
Equity in (income) loss of unconsolidated affiliates	0	(2.0)	(11.3)	2.6
Income (loss) from continuing operations	37.5	31.0	196.5	(19.1)
Income from discontinued operations before taxes	1.0	0.5	1.6	2.8
Provision for income taxes	0.4	0.2	0.6	1.0
Income from discontinued operations	0.6	0.3	1.0	1.8
Net income (loss)	$ 38.1	$ 31.3	$ 197.5	$ (17.3)
Income (loss) per share of common stock (basic):
Income (loss) from continuing operations	$ 0.27	$ 0.23	$ 1.41	$ (0.14)
Income from discontinued operations	$ 0.00	$ 0.00	$ 0.01	$ 0.01
Net income (loss) per share	$ 0.27	$ 0.23	$ 1.42	$ (0.13)
Net income (loss) per share of common stock (diluted):
Income (loss) from continuing operations	$ 0.26	$ 0.22	$ 1.36	$ (0.14)
Income from discontinued operations	$ 0.00	$ 0.00	$ 0.01	$ 0.01
Net income (loss) per share	$ 0.26	$ 0.22	$ 1.37	$ (0.13)
Average shares of stock outstanding - basic	140.0	137.1	139.1	136.9
Average shares of stock outstanding - diluted	144.0	142.6	144.1	136.9