Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 3,466	$ (46,265)	$ (76,846)	$ (69,035)
Adjustments:
Amortization	41,985	60,097	123,834	166,686
Accretion	3,868	4,175	12,961	15,015
Deferred income taxes	(23,437)	(1,869)	(39,142)	17,680
Loss on termination of revolving credit facility	0	0	3,035	0
Fair value adjustments, net	(15,421)	20,308	3,423	(61,487)
Proceeds From Settlement	0	0	0	22,046
Stock-based compensation	2,505	373	7,455	3,085
(Gain) loss on Disposition of Assets	(89)	(7)	133	(1,139)
Impairment of marketable securities	1,092	870	4,614	18,097
Other non-cash charges	1,088	(375)	870	(487)
Changes in operating assets and liabilities:
Receivables and other current assets	7,446	(2,132)	18,297	6,515
Prepaid expenses and other	3,871	(14,306)	(687)	(13,894)
Inventories	9,698	11,592	(5,821)	22,582
Accounts payable and accrued liabilities	(4,806)	(5,657)	311	(22,588)
CASH PROVIDED BY OPERATING ACTIVITIES	31,266	26,804	52,437	103,076
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(16,784)	(32,726)	(44,076)	(72,754)
Payments to Acquire Mineral Rights	(13,829)	0	(16,079)	(113,214)
Purchase of short term investments and marketable securities	(2,089)	(2,689)	(50,423)	(8,022)
Payments for (Proceeds from) Investments	2,856	27	3,413	6,371
Other	74	(48)	61	1,163
CASH USED IN INVESTING ACTIVITIES	(29,772)	(35,436)	(107,104)	(186,456)
CASH FLOWS FROM FINANCING ACTIVITIES:
Issuance of notes and bank borrowings	0	0	153,000	300,000
Payments on long-term debt, capital leases, and associated costs	(13,274)	(1,824)	(20,236)	(59,021)
Payments on gold production royalty	(11,351)	(12,619)	(38,379)	(43,548)
Payments for Repurchase of Common Stock	0	(14,995)	0	(27,552)
Other	(77)	(27)	(483)	(505)
CASH USED IN FINANCING ACTIVITIES:	(24,702)	(29,465)	93,902	169,374
INCREASE IN CASH AND CASH EQUIVALENTS	(23,208)	(38,097)	39,235	85,994
Cash and cash equivalents at beginning of period	269,133	249,531	206,690	125,440
Cash and cash equivalents at end of period	$ 245,925	$ 211,434	$ 245,925	$ 211,434