Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 80,169	$ 106,374
Accounts receivable:
Trade	30,508	14,740
Other, net	19,767	18,376
Inventories:
Product inventories	37,414	28,823
Materials and supplies	64,718	64,824
Other current assets	22,674	27,125
Total current assets	255,250	260,262
Investments	32,873	33,724
Restricted cash and cash equivalents	1,163	1,165
Properties, plants, equipment and mineral interests, net	2,663,155	2,666,250
Operating lease right-of-use assets	9,187	8,349
Deferred tax assets	0	2,883
Other non-current assets	32,630	38,471
Total assets	2,994,258	3,011,104
Current liabilities:
Accounts payable and accrued liabilities	81,289	81,599
Accrued payroll and related benefits	28,783	28,240
Accrued taxes	5,585	3,501
Finance leases	8,610	9,752
Accrued reclamation and closure costs	9,660	9,660
Accrued interest	5,190	14,405
Other current liabilities	13,520	10,303
Total current liabilities	152,637	157,460
Accrued reclamation and closure costs	111,668	110,797
Long-term debt including finance leases	662,482	653,063
Deferred tax liability	98,011	104,835
Other non-current liabilities	10,830	16,845
Total liabilities	1,035,628	1,043,000
Commitments and contingencies (Notes 4, 7, 8, and 10)
STOCKHOLDERS' EQUITY
Preferred stock, 5,000,000 shares authorized: Series B preferred stock, $0.25 par value, 157,776 shares issued and outstanding, liquidation preference - $7,889	39	39
Common stock, $0.25 par value, authorized 750,000,000 shares; issued March 31, 2024 - 625,772,397 shares and December 31, 2023 - 624,647,379 shares	156,447	156,076
Capital surplus	2,350,249	2,343,747
Accumulated deficit	(513,608)	(503,861)
Accumulated other comprehensive income, net	434	5,837
Less treasury stock, at cost; March 31, 2024 - 8,813,127 and December 31, 2023 - 8,535,161 Shares issued and held in treasury	(34,931)	(33,734)
Total stockholders' equity	1,958,630	1,968,104
Total liabilities and stockholders' equity	$ 2,994,258	$ 3,011,104