CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 22,110	$ 30,985
Accounts and other receivables – net	144,673	175,429
Inventories – net	229,199	215,502
Taxes receivable	1,498	9,771
Other current assets	16,251	9,241
Total current assets	413,731	440,928
Property, plant and equipment – net	830,399	811,065
Operating lease right-of-use assets	102,267	114,688
Goodwill	56,192	56,192
Intangible assets	46,955	49,242
Other assets	26,910	23,216
Total assets	1,476,454	1,495,331
Current liabilities:
Accounts payable	230,547	272,770
Accrued liabilities	41,302	48,820
Operating lease liabilities – short-term	33,690	37,472
Deferred income and customer advances	2,415	34,430
Total current liabilities	307,954	393,492
Deferred income taxes	161,431	160,409
Operating lease liabilities – long-term	68,875	77,571
Line of credit – long-term	170,000	115,000
Postretirement benefit obligations	3,419	0
Other liabilities	10,290	10,679
Total liabilities	721,969	757,151
COMMITMENTS AND CONTINGENCIES (Note 9)
STOCKHOLDERS' EQUITY
Common stock, par value $0.01; 200,000,000 shares authorized; 32,597,015 shares issued and 27,055,067 outstanding at September 30, 2023; 31,977,593 shares issued and 27,446,520 outstanding at December 31, 2022	326	320
Preferred stock, par value $0.01; 50,000,000 shares authorized and 0 shares issued and outstanding at September 30, 2023 and December 31, 2022	0	0
Treasury stock at par (5,541,948 shares at September 30, 2023; 4,531,073 shares at December 31, 2022)	(55)	(45)
Additional paid-in capital	143,965	174,585
Retained earnings	614,557	567,517
Accumulated other comprehensive loss	(4,308)	(4,197)
Total stockholders' equity	754,485	738,180
Total liabilities and stockholders' equity	$ 1,476,454	$ 1,495,331