Condensed Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Condensed Consolidated Statements of Comprehensive Income [Abstract]
Net sales	$ 657,457	$ 692,758	$ 1,113,773	$ 1,157,293
Delivery revenues	44,514	43,394	75,398	72,122
Total revenues	701,971	736,152	1,189,171	1,229,415
Cost of goods sold (Note 8)	556,617	570,423	1,020,039	1,034,063
Delivery costs	44,514	43,394	75,398	72,122
Cost of revenues	601,131	613,817	1,095,437	1,106,185
Gross profit	100,840	122,335	93,734	123,230
Selling, administrative and general expenses (Note 8)	75,893	83,376	153,408	169,872
Gain on sale of property, plant & equipment and businesses, net	2,919	1,362	3,373	49,734
Recovery (charge) from legal settlement (Note 19)	0	(40,000)	25,546	(40,000)
Other operating income (expense), net	(4,378)	889	(6,940)	1,347
Operating earnings (loss)	23,488	1,210	(37,695)	(35,561)
Other nonoperating income (expense), net	(20)	(1,233)	1,361	144
Interest expense, net (Note 8)	70,911	43,723	113,161	87,016
Loss from continuing operations before income taxes	(47,443)	(43,746)	(149,495)	(122,433)
Benefit from income taxes	(40,341)	(21,231)	(77,771)	(55,444)
Loss from continuing operations	(7,102)	(22,515)	(71,724)	(66,989)
Earnings (loss) on discontinued operations, net of tax	(1,037)	(1,477)	8,852	4,250
Net loss	(8,139)	(23,992)	(62,872)	(62,739)
Other comprehensive income, net of tax
Fair value adjustments to cash flow hedges	0	124	0	(320)
Reclassification adjustment for cash flow hedges	4,003	2,645	5,453	5,498
Amortization of pension and postretirement plan actuarial loss and prior service cost	1,941	823	4,158	1,722
Other comprehensive income	5,944	3,592	9,611	6,900
Comprehensive loss	(2,195)	(20,400)	(53,261)	(55,839)
Basic earnings (loss) per share
Continuing operations	$ (0.05)	$ (0.18)	$ (0.55)	$ (0.53)
Discontinued operations	$ (0.01)	$ (0.01)	$ 0.06	$ 0.04
Net loss per share	$ (0.06)	$ (0.19)	$ (0.49)	$ (0.49)
Diluted earnings (loss) per share
Continuing operations	$ (0.05)	$ (0.18)	$ (0.55)	$ (0.53)
Discontinued operations	$ (0.01)	$ (0.01)	$ 0.06	$ 0.04
Net loss per share	$ (0.06)	$ (0.19)	$ (0.49)	$ (0.49)
Weighted-average common shares outstanding
Basic	129,446	128,168	129,263	127,452
Assuming dilution	129,446	128,168	129,263	127,452
Cash dividends declared per share of common stock	$ 0.25	$ 0.25	$ 0.50	$ 0.50
Depreciation, depletion, accretion and amortization	$ 92,137	$ 97,280	$ 182,723	$ 191,476
Effective tax rate from continuing operations	85.00%	48.50%	52.00%	45.30%