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Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Current assets:    
Cash and cash equivalents $ 82,144 $ 16,264
Accounts receivable 86,902 42,929
Allowance for doubtful accounts (474) (378)
Accounts receivable, net 86,428 42,551
Inventories:    
Finished goods 14,688 17,778
Raw materials 1,895 1,795
Total inventories 16,583 19,573
Supplies, prepaid items and other:    
Prepaid insurance 14,244 12,315
Precious metals 14,945 6,787
Supplies 26,558 25,288
Other 2,234 6,802
Total supplies, prepaid items and other 57,981 51,192
Total current assets 243,136 129,580
Property, plant and equipment, net 858,480 891,198
Other assets:    
Operating lease assets 27,317 26,403
Intangible and other assets, net 3,907 6,121
Total other assets 31,224 32,524
Total assets 1,132,840 1,053,302
Current liabilities:    
Accounts payable 49,458 46,551
Short-term financing 12,716 13,576
Accrued and other liabilities 33,301 30,367
Current portion of long-term debt 9,454 16,801
Total current liabilities 104,929 107,295
Long-term debt, net 518,190 467,389
Noncurrent operating lease liabilities 19,568 19,845
Other noncurrent accrued and other liabilities 3,030 6,090
Deferred income taxes 26,633 30,939
Commitments and contingencies (Note 8)
Stockholders' equity:    
Common stock, $.10 par value; 150 million shares authorized, 91.1 million shares issued (75 million shares authorized, 39.9 million shares issued at December 31, 2020) 9,117 3,993
Capital in excess of par value 493,161 197,350
Accumulated deficit (31,255) (41,487)
Stockholders equity including treasury stock 471,023 162,856
Less treasury stock, at cost:    
Common stock, 1.4 million shares (2.1 million shares at December 31, 2020) 10,533 13,213
Total stockholders' equity 460,490 149,643
Total Liabilities and Stockholders' equity $ 1,132,840 1,053,302
Series E Preferred Stock [Member]    
Redeemable preferred stocks:    
Redeemable preferred stock, value   272,101
Series B Preferred Stock [Member]    
Stockholders' equity:    
Preferred stock, value   2,000
Series D Preferred Stock [Member]    
Stockholders' equity:    
Preferred stock, value   $ 1,000