Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Operating activities:
Net loss	$ (14,115)	$ (2,758)
Non-cash elements included in net loss:
Depreciation, depletion and amortization	52,966	54,045
Loss on investments	3,043
Loss on disposition of properties, plants, equipment, and mineral interests	190	44
Provision for reclamation and closure costs	10,256	2,710
Stock compensation	2,261	2,561
Deferred income taxes	(705)	(6,840)
Amortization of loan origination fees	910	1,135
Loss on derivative contracts	7,812	6,231
Foreign exchange gain	(9,672)	(55)
Other non-cash charges, net	25	(986)
Change in assets and liabilities, net of business acquired:
Accounts receivable	2,469	8,398
Inventories	(3,417)	(2,418)
Other current and non-current assets	(3,904)	1,617
Accounts payable and accrued liabilities	(4,210)	(17,084)
Accrued payroll and related benefits	803	9,069
Accrued taxes	(1,938)	2,582
Accrued reclamation and closure costs and other non-current liabilities	9,399	(1,222)
Cash provided by operating activities	52,173	57,029
Investing activities:
Additions to properties, plants, equipment and mineral interests	(58,272)	(57,461)
Acquisition of Revett, net of cash acquired	(809)
Proceeds from disposition of properties, plants and equipment	153	238
Purchases of investments	(947)
Changes in restricted cash and investment balances		4,334
Net cash used in investing activities	(59,875)	(52,889)
Financing activities:
Proceeds from exercise of warrants		14,112
Acquisition of treasury shares	(941)	(1,501)
Dividends paid to common shareholders	(1,850)	(1,715)
Dividends paid to preferred shareholders	(276)	(276)
Credit availability and debt issuance fees paid	(123)	(577)
Repayments of capital leases	(4,940)	(4,525)
Net cash (used in) provided by financing activities	(8,130)	5,518
Effect of exchange rates on cash	(2,259)	250
Net (decrease) increase in cash and cash equivalents	(18,091)	9,908
Cash and cash equivalents at beginning of period	209,665	212,175
Cash and cash equivalents at end of period	191,574	222,083
Significant non-cash investing and financing activities:
Addition of capital lease obligations	2,369	2,193
Common stock issued for the acquisition of Revett	19,133
Senior notes contributed to pension plan, par value		5,000
Payment of accrued compensation in restricted stock units	$ 3,016	$ 4,600