Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Operating activties
Net loss	$ (2,280,774)	$ (318,217)
Adjustments to reconcile net loss to cash used in operating activities:
Depreciation, depletion and amortization	306,211	312,042
Amortization of acquired sales contracts, net	(7,028)	(9,948)
Amortization relating to financing activities	18,960	12,349
Prepaid royalties expensed	6,661	5,645
Employee stock-based compensation expense	4,459	7,689
Asset impairment and non-cash mine closure costs	2,136,610	1,512
Losses from disposed operations resulting from Patriot Coal bankruptcy	149,314	0
Expenses related to debt restructuring	11,498	0
Amortization of premiums on debt securities held	2,143	0
Gains on disposals and divestitures, net	(1,191)	(21,965)
Deferred income taxes	(347,180)	(112,998)
Changes in:
Receivables	(3,165)	(6,779)
Inventories	(48,848)	22,589
Accounts payable, accrued expenses and other current liabilities	(19,338)	73,324
Income taxes, net	(4,303)	(514)
Other	(3,711)	37,261
Cash provided by (used in) operating activities	(79,682)	1,990
Investing activities
Capital expenditures	(109,250)	(118,701)
Additions to prepaid royalties	(5,808)	(3,604)
Proceeds from disposals and divestitures	1,020	50,971
Purchases of marketable securities	(203,094)	(181,546)
Proceeds from sale or maturity of marketable securities and other investments	248,362	178,293
Investments in and advances to affiliates	(7,944)	(13,393)
Cash used in investing activities	(76,714)	(87,980)
Financing activities
Payments on term loan	(14,625)	(14,625)
Net payments on other debt	(12,192)	(10,187)
Expenses related to debt restructuring	(11,498)	0
Dividends paid	0	(2,123)
Debt financing costs	0	(2,219)
Deposits of restricted cash	(44,732)	(6)
Other	0	(15)
Cash used in financing activities	(83,047)	(29,175)
Decrease in cash and cash equivalents	(239,443)	(115,165)
Cash and cash equivalents, beginning of period	734,231	911,099
Cash and cash equivalents, end of period	$ 494,788	$ 795,934