Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 123,690	$ 61,110
Receivables:
Trade	138,779	66,196
Loan and lease receivables	10,332	0
Contractual third-party reclamation receivables	7,666	8,487
Other	2,437	5,086
Total receivables	159,214	79,769
Inventories	114,225	39,972
Deferred income taxes	2,226	5,355
Restricted investments and bond collateral	0	5,998
Other current assets	14,602	12,835
Total current assets	413,957	205,039
Property, plant and equipment:
Land and mineral rights	444,701	278,188
Plant and equipment	801,967	657,696
Gross property, plant and equipment	1,246,668	935,884
Less accumulated depreciation, depletion and amortization	503,929	445,848
Net property, plant and equipment	742,739	490,036
Loan and lease receivables	76,080	0
Advanced coal royalties	7,533	7,311
Reclamation deposits	77,131	74,921
Restricted investments and bond collateral	108,734	69,235
Contractual third-party reclamation receivables, less current portion	90,248	88,303
Investment in joint venture	30,766	0
Intangible assets, net of accumulated amortization of $15.3 million and $14.1 million at September 30, 2014 and December 31, 2013, respectively	335	1,520
Other assets	30,985	10,320
Total Assets	1,578,508	946,685
Current liabilities:
Current installments of long-term debt	40,931	44,343
Accounts payable and accrued expenses:
Trade and other accrued liabilities	140,946	57,507
Interest payable	12,510	11,321
Production taxes	50,427	41,905
Workers' compensation	702	717
Postretirement medical benefits	13,955	13,955
SERP	390	390
Deferred revenue	13,554	14,068
Asset retirement obligations	29,529	23,353
Other current liabilities	9,775	5,469
Total current liabilities	312,719	213,028
Long-term debt, less current installments	777,999	295,494
Workers' compensation, less current portion	6,580	6,744
Excess of black lung benefit obligation over trust assets	10,768	8,675
Postretirement medical benefits, less current portion	272,523	270,374
Pension and SERP obligations, less current portion	20,772	24,176
Deferred revenue, less current portion	37,984	46,567
Asset retirement obligations, less current portion	355,278	256,511
Intangible liabilities, net of accumulated amortization of $13.2 million and $12.4 million at September 30, 2014 and December 31, 2013, respectively	4,805	5,606
Deferred income taxes	12,325	5,355
Other liabilities	31,086	2,034
Total liabilities	1,842,839	1,134,564
Shareholders' deficit:
Preferred stock of $1.00 par value Authorized 5,000,000 shares; issued and outstanding 91,694 shares at September 30, 2014 and 159,960 at December 31, 2013	92	160
Common stock of $2.50 par value Authorized 30,000,000 shares; Issued and outstanding 17,059,922 shares at September 30, 2014 and 14,592,231 shares at December 31, 2013	42,649	36,479
Other paid-in capital	188,214	134,861
Accumulated other comprehensive loss	(67,520)	(63,595)
Accumulated deficit	(427,766)	(295,784)
Total shareholders’ deficit	(264,331)	(187,879)
Total Liabilities and Shareholders' Deficit	$ 1,578,508	$ 946,685