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CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Current assets:    
Cash and cash equivalents $ 66,783 $ 26,048
Accounts receivable 33,459 67,043
Allowance for doubtful accounts (458) (351)
Accounts receivable, net 33,001 66,692
Inventories:    
Finished goods 18,931 27,726
Raw materials 1,704 1,483
Total inventories 20,635 29,209
Supplies, prepaid items and other:    
Prepaid insurance 1,478 10,924
Supplies 25,169 24,576
Other 10,114 8,964
Total supplies, prepaid items and other 36,761 44,464
Total current assets 157,180 166,413
Property, plant and equipment, net 950,175 974,248
Other assets:    
Operating lease assets 16,069  
Intangible and other assets, net 6,357 7,672
Total other assets 22,426 7,672
Total Assets 1,129,781 1,148,333
Current liabilities:    
Accounts payable 54,088 62,589
Short-term financing 607 8,577
Accrued and other liabilities 39,309 42,129
Current portion of long-term debt 9,090 12,518
Total current liabilities 103,094 125,813
Long-term debt, net 447,663 412,681
Noncurrent operating lease liabilities 11,441  
Other noncurrent accrued and other liabilities 7,001 8,861
Deferred income taxes 50,815 56,612
Commitments and contingencies (Note 6)
Stockholders' equity:    
Common stock, $.10 par value; 75,000,000 shares authorized, 31,283,210 shares issued 3,128 3,128
Capital in excess of par value 200,045 198,482
Retained earnings 93,968 153,773
Stockholders equity including treasury stock 300,141 358,383
Less treasury stock, at cost:    
Common stock, 2,500,779 shares (2,438,305 shares at December 31, 2018) 16,645 16,186
Total stockholders' equity 283,496 342,197
Total Liabilities and Stockholders' equity 1,129,781 1,148,333
Series E Preferred Stock [Member]    
Redeemable preferred stocks:    
Redeemable preferred stock, value 226,271 202,169
Series B Preferred Stock [Member]    
Stockholders' equity:    
Preferred stock, value 2,000 2,000
Series D Preferred Stock [Member]    
Stockholders' equity:    
Preferred stock, value $ 1,000 $ 1,000