CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues:
Sales	$ 179,068	$ 319,542	$ 658,549	$ 1,102,753
Miscellaneous income	5,731	10,004	13,803	19,029
Total revenues	184,799	329,546	672,352	1,121,782
Costs and expenses:
Cost of sales (exclusive of depreciation and depletion)	216,647	297,925	727,207	991,561
Depreciation and depletion	43,487	58,413	154,147	204,653
Selling, general and administrative	14,233	16,598	63,523	56,379
Other postretirement benefits	12,333	13,869	36,999	41,607
Restructuring charges (benefit)	4,216	(2,463)	6,662	5,835
Asset impairments	0	37	2,897,928	23,081
Total costs and expenses	290,916	384,379	3,886,466	1,323,116
Operating loss	(106,117)	(54,833)	(3,214,114)	(201,334)
Interest expense, net	(42,222)	(79,231)	(195,309)	(218,065)
Gain on extinguishment of debt	0	3,394	58,626	902
Other income, net	0	1,424	0	646
Loss before reorganization items, net and income tax benefit	(148,339)	(129,246)	(3,350,797)	(417,851)
Reorganization items, net	(17,017)	0	(17,017)	0
Loss before income tax benefit	(165,356)	(129,246)	(3,367,814)	(417,851)
Income tax benefit	(6,713)	(30,344)	(673,911)	(75,380)
Net loss	$ (158,643)	$ (98,902)	$ (2,693,903)	$ (342,471)
Net loss per share:
Basic and diluted net loss per share (in usd per share)	$ (1.96)	$ (1.48)	$ (34.41)	$ (5.27)
Dividends per share (in dollars per share)	$ 0.00	$ 0.01	$ 0.00	$ 0.03