CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
ASSETS
Cash and cash equivalents	$ 182,110	$ 468,532
Trade receivables, net	61,964	91,057
Other receivables	128,561	127,037
Inventories	138,978	201,598
Deferred income taxes	16,247	16,819
Prepaid expenses	44,506	46,190
Other current assets	2,458	9,285
Total current assets	574,824	960,518
Mineral interests, net	436,118	2,836,801
Property, plant and equipment, net	876,014	1,466,297
Other long-term assets	89,963	67,748
Total assets	1,976,919	5,331,364
LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)
Accounts payable	41,114	38,980
Accrued expenses	53,332	125,318
Pension and other postretirement benefits obligation	0	29,032
Other current liabilities	162,797	215,952
Current debt	156	12,327
Total current liabilities	257,399	421,609
Long-term debt	0	3,068,878
Deferred income taxes	66,440	730,685
Pension and other postretirement benefits obligation	0	641,231
Other long-term liabilities	186,353	187,380
Total liabilities not subject to compromise	510,192	5,049,783
Liabilities subject to compromise	3,866,405	0
Total liabilities not subject to compromise	4,376,597	5,049,783
Stockholders' equity (deficit):
Preferred stock, $0.01 par value per share: Authorized - 20,00,000 shares; none issued	0	0
Common stock, $0.01 par value per share: Authorized—200,000,000 shares; issued—80,748,433 and 71,978,113 shares, respectively	807	720
Capital in excess of par value	1,680,385	1,668,407
Accumulated deficit	(3,863,401)	(1,169,498)
Accumulated other comprehensive loss	(217,469)	(218,048)
Total stockholders' equity (deficit)	(2,399,678)	281,581
Total liabilities and stockholders' equity (deficit)	$ 1,976,919	$ 5,331,364