Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
NET INCOME (LOSS)	$ (37,191)	$ 12,270
Add (deduct) non-cash items
Amortization	40,459	49,724
Accretion	4,560	4,904
Deferred income taxes	(11,781)	7,425
Loss on termination of revolving credit facility	3,035	0
Fair value adjustments, net	10,557	(16,042)
Gain (loss) on foreign currency transactions	(209)	(465)
Stock-based compensation	2,565	1,096
(Gain) loss on Disposition of Assets	271	(868)
Impairment of marketable securities	2,588	35
Writedowns	0	119
Other non-cash charges	0	526
Changes in operating assets and liabilities:
Receivables and other current assets	5,622	3,968
Prepaid expenses and other	(8,109)	(2,240)
Inventories	(13,912)	(20,493)
Accounts payable and accrued liabilities	(8,082)	(27,025)
CASH PROVIDED BY OPERATING ACTIVITIES	(9,627)	12,934
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(11,936)	(12,827)
Purchase of short term investments and marketable securities	(46,220)	(4,649)
Payments for (Proceeds from) Investments	90	4,822
Other	(25)	(10,610)
CASH USED IN INVESTING ACTIVITIES	(58,091)	(23,264)
CASH FLOWS FROM FINANCING ACTIVITIES:
Issuance of notes and bank borrowings	153,000	300,000
Payments on long-term debt, capital leases, and associated costs	(4,111)	(55,340)
Payments on gold production royalty	(14,683)	(15,448)
Payments for Repurchase of Common Stock	0	(12,557)
Other	(246)	(454)
CASH USED IN FINANCING ACTIVITIES:	133,960	216,201
INCREASE IN CASH AND CASH EQUIVALENTS	66,242	205,871
Cash and cash equivalents at beginning of period	206,690	125,440
Cash and cash equivalents at end of period	$ 272,932	$ 331,311