Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net sales	$ 687,616	$ 714,947	$ 1,836,357	$ 1,828,720
Delivery revenues	41,245	45,805	122,522	121,203
Total revenues	728,861	760,752	1,958,879	1,949,923
Cost of goods sold	560,693	599,167	1,581,537	1,619,206
Delivery costs	41,245	45,805	122,522	121,203
Cost of revenues	601,938	644,972	1,704,059	1,740,409
Gross profit	126,923	115,780	254,820	209,514
Selling, administrative and general expenses	65,441	67,020	192,267	218,290
Gain on sale of property, plant & equipment and businesses, net	2,009	41,457	21,687	44,831
Recovery from legal settlement (Note 18)	0	20,857	0	46,404
Restructuring charges (Note 1)	(3,056)	(839)	(9,018)	(2,977)
Exchange offer costs (Note 1)	(1,206)	0	(43,331)	0
Other operating income (expense), net	(3,363)	(3,567)	(2,642)	(10,509)
Operating earnings	55,866	106,668	29,249	68,973
Other nonoperating income (expense), net	1,806	(3,745)	4,196	(2,384)
Interest expense, net	53,043	50,678	158,997	163,839
Earnings (loss) from continuing operations before income taxes	4,629	52,245	(125,552)	(97,250)
Provision for (benefit from) income taxes	(10,992)	29,833	(67,138)	(47,938)
Earnings (loss) from continuing operations	15,621	22,412	(58,414)	(49,312)
Earnings (loss) on discontinued operations, net of tax	(1,361)	(2,453)	2,338	6,399
Net earnings (loss)	14,260	19,959	(56,076)	(42,913)
Other comprehensive income, net of tax
Reclassification adjustment for cash flow hedges	975	900	2,868	6,353
Amortization of pension and postretirement benefit plans actuarial loss and prior service cost	3,084	1,885	9,252	6,043
Other comprehensive income	4,059	2,785	12,120	12,396
Comprehensive income (loss)	18,319	22,744	(43,956)	(30,517)
Basic earnings (loss) per share
Continuing operations	$ 0.12	$ 0.17	$ (0.45)	$ (0.38)
Discontinued operations	$ (0.01)	$ (0.02)	$ 0.02	$ 0.05
Net earnings (loss) per share	$ 0.11	$ 0.15	$ (0.43)	$ (0.33)
Diluted earnings (loss) per share
Continuing operations	$ 0.12	$ 0.17	$ (0.45)	$ (0.38)
Discontinued operations	$ (0.01)	$ (0.02)	$ 0.02	$ 0.05
Net earnings (loss) per share	$ 0.11	$ 0.15	$ (0.43)	$ (0.33)
Weighted-average common shares outstanding
Basic	129,753	129,493	129,674	129,341
Assuming dilution	130,215	129,768	129,674	129,341
Dividends declared per share	$ 0.01	$ 0.25	$ 0.03	$ 0.75
Depreciation, depletion, accretion and amortization	$ 84,108	$ 90,948	$ 253,391	$ 273,671
Effective tax rate from continuing operations		57.10%	53.50%	49.30%