CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Revenues:
Sales	$ 1,836,343	$ 2,381,760
Miscellaneous income	24,288	18,135
Total revenues	1,860,631	2,399,895
Costs and expenses:
Cost of sales (exclusive of depreciation and depletion)	1,558,305	1,796,991
Depreciation and depletion	311,514	316,232
Selling, general and administrative	99,994	133,467
Other postretirement benefits	58,900	52,852
Restructuring and asset impairments	2,883	49,070
Goodwill impairment		1,064,409
Total costs and expenses	2,031,596	3,413,021
Operating income (loss)	(170,965)	(1,013,126)
Interest expense	(233,854)	(139,356)
Interest income	1,103	804
Other income (loss), net	2,875	(13,081)
Income (loss) from continuing operations before income tax expense (benefit)	(400,841)	(1,164,759)
Income tax expense (benefit)	(41,838)	(99,204)
Income (loss) from continuing operations	(359,003)	(1,065,555)
Income from discontinued operations		5,180
Net income (loss)	$ (359,003)	$ (1,060,375)
Basic income (loss) per share:
Income (loss) from continuing operations (in dollars per share)	$ (5.74)	$ (17.04)
Income from discontinued operations (in dollars per share)		$ 0.08
Net income (loss) (in dollars per share)	$ (5.74)	$ (16.96)
Diluted income (loss) per share:
Income (loss) from continuing operations (in dollars per share)	$ (5.74)	$ (17.04)
Income from discontinued operations (in dollars per share)		$ 0.08
Net income (loss) (in dollars per share)	$ (5.74)	$ (16.96)