Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:
Net loss	$ (131,318)	$ (2,884)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation, depletion and amortization	68,713	47,257
Accretion of asset retirement obligation and receivable	16,257	9,507
Non-cash tax benefits	(711)	0
Amortization of intangible assets and liabilities, net	385	498
Share-based compensation	3,456	4,594
Loss (gain) on sales of assets	114	(321)
Amortization of deferred financing costs	2,365	2,790
Loss on extinguishment of debt	12,648	64
Loss (gain) on sales of investment securities	36	(25)
Loss on derivative	29,621	0
Loss on foreign exchange	5,883	0
Pension settlement accounting	814	0
Income from equity affiliates	(2,060)	0
Distributions from equity affiliates	2,948	0
Changes in operating assets and liabilities:
Receivables	(24,520)	(8,491)
Inventories	55,399	(1,600)
Excess of black lung benefit obligation over trust assets	2,093	53
Deferred income tax	3,344	0
Accounts payable and accrued expenses	6,377	12,457
Deferred revenue	(9,140)	(8,275)
Income tax payable	556	(26)
Accrual for workers' compensation	(178)	(359)
Asset retirement obligation	(5,881)	(6,888)
Accrual for postretirement medical benefits	2,163	6,030
Pension and SERP obligations	(1,004)	2,273
Other assets and liabilities	(149)	1,815
Net cash provided by operating activities	38,211	58,469
Cash flows from investing activities:
Additions to property, plant and equipment	(35,646)	(20,223)
Change in restricted investments and bond collateral and reclamation deposits	(41,795)	(9,652)
Cash payments related to Canadian Acquisition	(322,637)	0
Cash acquired in related to Canadian Acquisition, net	8,103	0
Net proceeds from sales of assets	38,085	604
Proceeds from sale of restricted investments	7,279	7,927
Payments related to loan and lease receivables	(2,514)	0
Receipts from loan and lease receivables	5,057	0
Receivable from customer for property and equipment purchases	55	(1)
Other	(602)	0
Net cash used in investing activities	(344,615)	(21,345)
Cash flows from financing activities:
Change in book overdrafts	(317)	20
Borrowings from long-term debt, net of debt discount	454,219	0
Repayments of long-term debt	(110,792)	(22,065)
Borrowings on revolving lines of credit	15,000	7,000
Repayments of revolving lines of credit	(15,000)	(7,000)
Debt issuance costs and other refinancing costs	(27,827)	(182)
Preferred dividends paid	(664)	(1,020)
Proceeds from Issuance of Common Stock	56,473	0
Exercise of stock options	417	0
Net cash provided by (used in) financing activities	371,509	(23,247)
Effect of foreign exchange rates on cash	(2,525)	0
Net increase in cash and cash equivalents	62,580	13,877
Cash and cash equivalents, beginning of period	61,110	31,610
Cash and cash equivalents, end of period	$ 123,690	$ 45,487