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Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Current assets:    
Cash and cash equivalents $ 63,769 $ 82,144
Short-term investments 330,553  
Accounts receivable 75,494 86,902
Allowance for doubtful accounts (699) (474)
Accounts receivable, net 74,795 86,428
Inventories:    
Finished goods 28,893 14,688
Raw materials 1,990 1,895
Total inventories 30,883 16,583
Supplies, prepaid items and other:    
Prepaid insurance 17,429 14,244
Precious metals 13,323 14,945
Supplies 27,501 26,558
Other 8,346 2,234
Total supplies, prepaid items and other 66,599 57,981
Total current assets 566,599 243,136
Property, plant and equipment, net 848,661 858,480
Other assets:    
Operating lease assets 22,682 27,317
Intangible and other assets, net 1,877 3,907
Total other assets 24,559 31,224
Total assets 1,439,819 1,132,840
Current liabilities:    
Accounts payable 78,182 49,458
Short-term financing 16,134 12,716
Accrued and other liabilities 38,470 33,301
Current portion of long-term debt 9,522 9,454
Total current liabilities 142,308 104,929
Long-term debt, net 702,733 518,190
Noncurrent operating lease liabilities 14,896 19,568
Other noncurrent accrued and other liabilities 522 3,030
Deferred income taxes 63,487 26,633
Commitments and contingencies (Note 8)
Stockholders' equity:    
Common stock, $.10 par value; 150 million shares authorized, 91.2 million shares issued 9,117 9,117
Capital in excess of par value 497,179 493,161
Retained earnings (accumulated deficit) 199,092 (31,255)
Stockholders equity including treasury stock 705,388 471,023
Less treasury stock, at cost:    
Common stock, 14.9 million shares (1.4 million shares at December 31, 2021) 189,515 10,533
Total stockholders' equity 515,873 460,490
Total Liabilities and Stockholders' equity $ 1,439,819 $ 1,132,840