Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
CURRENT ASSETS
Cash and cash equivalents	$ 245,925	$ 206,690
Investments	49,520	0
Receivables	67,599	81,074
Ore on leach pads	50,335	50,495
Inventory	127,985	132,023
Deferred tax assets	35,021	35,008
Prepaid expenses and other	19,974	25,940
Assets, Current	596,359	531,230
NON-CURRENT ASSETS
Property, plant and equipment, net	474,250	486,273
Mining properties, net	1,729,928	1,751,501
Ore on Leach Pad Non Current	41,547	31,528
Restricted assets	6,853	7,014
Marketable securities	9,162	14,521
Receivables	36,166	36,574
Debt issuance costs, net	10,315	10,812
Deferred tax assets	705	1,189
Other	10,039	15,336
TOTAL ASSETS	2,915,324	2,885,978
CURRENT LIABILITIES
Accounts payable	49,232	53,847
Accrued liabilities and other	37,882	38,266
Debt	11,733	2,505
Royalty obligations	45,347	48,019
Reclamation	767	913
Deferred tax liabilities	1,858	1,011
Current liabilities	146,819	144,561
NON-CURRENT LIABILITIES
Debt	457,744	306,130
Royalty obligations	41,319	65,142
Reclamation	60,946	57,515
Deferred tax liabilities	516,715	556,246
Other long-term liabilities	29,541	25,817
Non-current liabilities	1,106,265	1,010,850
SHAREHOLDERS' EQUITY
Common stock, par value $0.01 per share; authorized 150,000,000 shares, issued and outstanding 103,438,765 at September 30, 2014 and 102,843,003 at December 31, 2013	1,034	1,028
Additional paid-in capital	2,788,098	2,781,164
Accumulated other comprehensive loss	(3,327)	(4,906)
Accumulated deficit	(1,123,565)	(1,046,719)
Shareholders' Equity	1,662,240	1,730,567
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 2,915,324	$ 2,885,978