Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
CURRENT ASSETS
Cash and cash equivalents	$ 125,440	$ 175,012
Short term investments	999	20,254
Receivables	62,438	83,497
Ore on leach pad	22,991	27,252
Metal and other inventory	170,670	132,781
Deferred tax assets	2,458	1,869
Restricted assets	396	60
Prepaid expenses and other	20,790	24,218
Current assets	406,182	464,943
NON-CURRENT ASSETS
Property, plant and equipment, net	683,860	687,676
Mining properties, net	1,991,951	2,001,027
Ore on leach pad, non-current portion	21,356	6,679
Restricted assets	24,970	28,911
Marketable securities	27,065	19,844
Receivables, non-current portion	48,767	40,314
Debt issuance costs, net	3,713	1,889
Deferred tax assets	955	263
Other	12,582	12,895
TOTAL ASSETS	3,221,401	3,264,441
CURRENT LIABILITIES
Accounts payable	57,482	78,590
Accrued liabilities and other	10,002	13,126
Accrued income taxes	27,108	47,803
Accrued payroll and related benefits	21,306	16,240
Accrued interest payable	478	559
Current portion of debt and capital leases	55,983	32,602
Current portion of royalty obligation	65,104	61,721
Current portion of reclamation and mine closure	668	1,387
Deferred tax liabilities	121	53
Current liabilities	238,252	252,081
NON-CURRENT LIABILITIES
Long-term debt and capital leases	3,460	115,861
Non-current portion of royalty obligation	141,879	169,788
Reclamation and mine closure	34,670	32,371
Deferred tax liabilities	577,488	527,573
Other long-term liabilities	27,372	30,046
Non-current liabilities	784,869	875,639
COMMITMENTS AND CONTINGENCIES (Notes 12, 14, 15, 16, 19, 20 and 23)
SHAREHOLDERS' EQUITY
Common stock, par value $0.01 per share; authorized 150,000,000 shares, issued and outstanding 90,342,338 at December 31, 2012 and 89,655,124 at December 31, 2011	903	897
Additional paid-in capital	2,601,254	2,585,632
Accumulated deficit	(396,156)	(444,833)
Accumulated other comprehensive loss	(7,721)	(4,975)
Shareholders' Equity	2,198,280	2,136,721
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 3,221,401	$ 3,264,441