Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
CURRENT ASSETS
Cash and cash equivalents	$ 67,489	$ 61,633
Receivables	36,494	31,035
Inventory	78,230	76,661
Ore on leach pads	83,454	79,400
Prepaid expenses and other	18,943	18,526
Current assets	284,610	267,255
NON-CURRENT ASSETS
Property, plant and equipment and mining properties, net	1,697,927	1,688,288
Ore on leach pads, noncurrent	43,073	25,987
Restricted assets	8,812	9,115
Receivables, Net, Current	23,140	23,140
Other assets	62,503	67,063
TOTAL ASSETS	2,120,065	2,080,848
CURRENT LIABILITIES
Accounts payable	120,137	115,110
Accrued liabilities and other	131,845	140,913
Debt	23,242	22,636
Reclamation	10,954	10,954
Current liabilities	286,178	289,613
NON-CURRENT LIABILITIES
Debt	562,310	522,674
Reclamation	206,035	203,059
Deferred tax liabilities	16,787	12,360
Other long-term liabilities	30,626	29,239
Non-current liabilities	$ 815,758	$ 767,332
Common Stock, Shares, Outstanding	398,583,321	386,282,957
STOCKHOLDERS' EQUITY
Common stock, par value $0.01 per share; authorized 600,000,000 shares, 398,583,321 issued and outstanding at March 31, 2024 and 386,282,957 at December 31, 2023	$ 3,986	$ 3,863
Additional paid-in capital	4,170,568	4,139,870
Accumulated other comprehensive income (loss)	(6,147)	1,331
Accumulated deficit	(3,150,278)	(3,121,161)
Stockholders' equity	1,018,129	1,023,903
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 2,120,065	$ 2,080,848
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)	398,583,321	386,282,957