Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
CURRENT ASSETS
Cash and cash equivalents	$ 66,977	$ 61,464
Receivables	35,621	36,333
Inventory	62,054	61,831
Ore on leach pads	93,355	82,958
Marketable Securities, Current	14,938	32,032
Prepaid expenses and other	15,199	25,814
Current assets	288,144	300,432
NON-CURRENT ASSETS
Property, plant and equipment, net	416,077	392,320
Mining properties, net	1,050,505	997,435
Ore on leach pads, noncurrent	42,092	51,268
Restricted assets	8,979	9,028
Current liabilities	0	12,120
Receivables, Net, Current	22,098	22,023
Other assets	61,510	61,517
TOTAL ASSETS	1,889,405	1,846,143
CURRENT LIABILITIES
Accounts payable	119,094	96,123
Accrued liabilities and other	69,222	92,863
Debt	32,039	24,578
Reclamation	5,796	5,796
Current liabilities	226,151	219,360
NON-CURRENT LIABILITIES
Debt	462,047	491,355
Reclamation	199,584	196,635
Deferred tax liabilities	20,909	14,459
Other long-term liabilities	34,178	35,318
Non-current liabilities	$ 716,718	$ 737,767
Common Stock, Shares, Outstanding	331,042,396	295,697,624
STOCKHOLDERS' EQUITY
Common stock, par value $0.01 per share; authorized 600,000,000 shares, 331,042,396 issued and outstanding at March 31, 2023 and 295,697,624 at December 31, 2022	$ 3,310	$ 2,957
Additional paid-in capital	3,990,080	3,891,265
Accumulated other comprehensive income (loss)	(4,719)	12,343
Accumulated deficit	(3,042,135)	(3,017,549)
Stockholders' equity	946,536	889,016
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 1,889,405	$ 1,846,143
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	600,000,000	600,000,000
Common stock, shares issued (in shares)	331,042,396	295,697,624