Consolidated Balance Sheets - USD ($) $ in Thousands		Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents		$ 210,010	$ 129,830
Accounts receivable:
Trade		36,437	27,864
Taxes			1,584
Other, net		8,149	9,745
Inventories:
Concentrates, doré, stockpiled ore, and metals in transit and in-process		25,906	57,567
Materials and supplies		41,859	38,608
Other current assets		19,266	19,114
Total current assets		341,627	284,312
Investments		10,844	15,148
Restricted cash and investments		1,053	1,053
Properties, plants, equipment and mineral interests, net	[1]	2,310,810	2,378,074
Operating lease right-of-use assets		12,435	10,628
Deferred tax assets		45,562	2,912
Other non-current assets		6,477	8,083
Total assets	[1]	2,728,808	2,700,210
Current liabilities:
Accounts payable and accrued liabilities		68,100	68,516
Accrued payroll and related benefits		28,714	31,807
Accrued taxes		12,306	5,774
Finance leases		5,612	6,491
Operating leases		2,486	3,008
Accrued reclamation and closure costs		9,259	5,582
Accrued interest		14,454	14,157
Derivative liabilities, current		19,353	11,737
Other current liabilities		99	138
Total current liabilities		160,383	147,210
Finance leases		7,776	9,274
Operating leases		9,950	7,634
Accrued reclamation and closure costs		103,972	110,466
Long-term debt		508,095	507,242
Deferred tax liability		149,706	156,091
Pension liability		4,673	44,144
Derivatives liabilities, noncurrent		18,528	18
Other non-current liabilities		4,938	4,346
Total liabilities		968,021	986,425
Commitments and contingencies (Notes 5, 6, 9, 10, 14 and 15)
Common stock, $0.25 par value, authorized 750,000,000 shares; issued 2021 — 545,534,760 shares and 2020 — 538,487,415 shares		136,391	134,629
Capital surplus		2,034,485	2,003,576
Accumulated deficit		(353,651)	(368,074)
Accumulated other comprehensive loss, net		(28,456)	(32,889)
Less treasury stock, at cost; 2021 — 7,395,295 and 2020 — 6,821,044 shares issued and held in treasury		(28,021)	(23,496)
Total stockholders’ equity		1,760,787	1,713,785
Total liabilities and stockholders’ equity		2,728,808	2,700,210
Series B Preferred Stock [Member]
Current liabilities:
Preferred stock, 5,000,000 shares authorized: Series B preferred stock, $0.25 par value, 157,816 shares issued and outstanding, liquidation preference — $7,891		$ 39	$ 39

[1] Amounts reported as of and for the years ended December 31, 2020 and 2019 have been revised. See Note 3 for more information.