Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
CURRENT ASSETS
Cash and cash equivalents	$ 210,033	$ 162,182
Receivables	67,064	60,431
Inventory	73,760	106,026
Ore on leach pads	66,585	64,167
Prepaid expenses and other	22,450	17,981
Current assets	439,892	410,787
NON-CURRENT ASSETS
Property, plant and equipment, net	222,617	216,796
Mining properties, net	549,207	558,455
Ore on leach pads, noncurrent	72,461	67,231
Restricted assets	18,954	17,597
Equity securities	3,796	4,488
Receivables	15,558	30,951
Deferred tax assets		0
Other	15,265	12,604
TOTAL ASSETS	1,337,750	1,318,909
CURRENT LIABILITIES
Accounts payable	47,370	53,335
Accrued liabilities and other	37,999	42,743
Debt	13,451	12,039
Royalty obligations	4,961	4,995
Reclamation	3,604	3,522
Current liabilities	107,385	116,634
NON-CURRENT LIABILITIES
Debt	205,625	198,857
Royalty obligations	4,316	4,292
Reclamation	97,595	95,804
Deferred tax liabilities	76,363	74,798
Other long-term liabilities	59,846	60,037
Non-current liabilities	443,745	433,788
STOCKHOLDERS' EQUITY
Common stock, par value $0.01 per share; authorized 300,000,000 shares, issued and outstanding 181,492,911 at March 31, 2017 and 180,933,287 at December 31, 2016	1,815	1,809
Additional paid-in capital	3,314,644	3,314,590
Accumulated other comprehensive income (loss)	(3,078)	(2,488)
Accumulated deficit	(2,526,761)	(2,545,424)
Stockholders' equity	786,620	768,487
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 1,337,750	$ 1,318,909