Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
CURRENT ASSETS
Cash and cash equivalents	$ 236,221	$ 162,182
Receivables	66,415	60,431
Inventory	72,329	106,026
Ore on leach pads	78,801	64,167
Prepaid expenses and other	20,360	17,981
Current assets	474,126	410,787
NON-CURRENT ASSETS
Property, plant and equipment, net	235,058	216,796
Mining properties, net	536,201	558,455
Ore on leach pads, noncurrent	69,805	67,231
Restricted assets	20,953	17,597
Equity and debt securities	29,125	4,488
Receivables	13,461	30,951
Other	23,363	12,604
TOTAL ASSETS	1,402,092	1,318,909
CURRENT LIABILITIES
Accounts payable	60,188	53,335
Accrued liabilities and other	50,593	42,743
Debt	14,375	12,039
Royalty obligations	0	4,995
Reclamation	3,604	3,522
Current liabilities	128,760	116,634
NON-CURRENT LIABILITIES
Debt	274,523	198,857
Royalty obligations	0	4,292
Reclamation	104,505	95,804
Deferred tax liabilities	77,190	74,798
Other long-term liabilities	52,577	60,037
Non-current liabilities	508,795	433,788
STOCKHOLDERS' EQUITY
Common stock, par value $0.01 per share; authorized 300,000,000 shares, issued and outstanding 181,428,717 at September 30, 2017 and 180,933,287 at December 31, 2016	1,814	1,809
Additional paid-in capital	3,318,987	3,314,590
Accumulated other comprehensive income (loss)	(1,896)	(2,488)
Accumulated deficit	(2,554,368)	(2,545,424)
Stockholders' equity	764,537	768,487
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 1,402,092	$ 1,318,909