Condensed Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Revenues:
Coal revenues	$ 1,028,847	$ 1,455,702	$ 3,292,412	$ 4,660,541
Freight and handling revenues	135,931	154,450	448,316	597,157
Other revenues	26,316	23,657	119,080	158,833
Total revenues	1,191,094	1,633,809	3,859,808	5,416,531
Costs and expenses:
Cost of coal sales (exclusive of items shown separately below)	988,995	1,259,174	3,082,330	4,080,964
Freight and handling costs	135,931	154,450	448,316	597,157
Other expenses	120,698	13,357	155,479	43,194
Depreciation, depletion and amortization	196,292	238,894	650,021	797,516
Amortization of acquired intangibles, net	2,748	(11,682)	908	(64,480)
Selling, general and administrative expenses (exclusive of depreciation, depletion and amortization shown separately above)	38,899	49,604	120,664	160,626
Asset impairment and restructuring	2,017	13,676	24,358	1,028,610
Goodwill impairment	253,102	0	253,102	1,525,332
Total costs and expenses	1,738,682	1,717,473	4,735,178	8,168,919
Income (loss) from operations	(547,588)	(83,664)	(875,370)	(2,752,388)
Other income (expense):
Interest expense	(62,233)	(47,345)	(182,587)	(139,313)
Interest income	1,008	1,328	3,133	3,749
Loss on early extinguishment of debt	158	0	(33,039)	0
Miscellaneous expense, net	7,277	353	24,131	1,619
Total other expense, net	(53,790)	(45,664)	(188,362)	(133,945)
Income (loss) before income taxes	(601,378)	(129,328)	(1,063,732)	(2,886,333)
Income tax (expense) benefit	143,137	83,182	309,022	576,765
Net income (loss)	$ (458,241)	$ (46,146)	$ (754,710)	$ (2,309,568)
Basic loss per common share	$ (2.07)	$ (0.21)	$ (3.42)	$ (10.49)
Diluted loss per common share	$ (2.07)	$ (0.21)	$ (3.42)	$ (10.49)
Weighted average shares - basic	220,960,449	220,417,448	220,850,020	220,167,198
Weighted average shares - diluted	220,960,449	220,417,448	220,850,020	220,167,198