Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
CURRENT ASSETS
Cash and cash equivalents	$ 115,081	$ 192,032
Receivables	29,744	19,069
Inventory	66,279	58,230
Ore on leach pads	75,122	73,752
Prepaid expenses and other	11,393	15,053
Assets held for sale	0	91,421
Current assets	297,619	449,557
NON-CURRENT ASSETS
Property, plant and equipment, net	298,451	254,737
Mining properties, net	971,567	829,569
Ore on leach pads, noncurrent	66,964	65,393
Restricted assets	12,133	20,847
Equity and debt securities	17,806	34,837
Receivables	31,151	28,750
Other	16,809	17,485
TOTAL ASSETS	1,712,500	1,701,175
CURRENT LIABILITIES
Accounts payable	47,210	48,592
Accrued liabilities and other	82,619	94,930
Debt	24,937	30,753
Reclamation	6,552	3,777
Liabilities held for sale	0	50,677
Current liabilities	161,318	228,729
NON-CURRENT LIABILITIES
Debt	433,889	380,569
Reclamation	128,994	117,055
Deferred tax liabilities	79,070	105,148
Other long-term liabilities	56,717	54,697
Non-current liabilities	698,670	657,469
STOCKHOLDERS' EQUITY
Common stock, par value $0.01 per share; authorized 300,000,000 shares, 203,310,443 issued and outstanding at December 31, 2018 and 185,637,724 at December 31, 2017	2,033	1,856
Additional paid-in capital	3,443,082	3,357,345
Accumulated other comprehensive income (loss)	(59)	2,519
Accumulated deficit	(2,592,544)	(2,546,743)
Stockholders' equity	852,512	814,977
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 1,712,500	$ 1,701,175