CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current Assets:
Cash and cash equivalents	$ 635,269	$ 197,648
Allowance for doubtful accounts	(16,060)	(16,119)
Accounts receivable, other	67,533	54,631
Inventories	321,932	347,545
Prepaid expenses and other current assets	88,585	94,263
Total current assets	1,705,128	1,245,801
Property, plant and equipment, net	1,320,563	1,183,730
Right-of-use assets - operating leases	122,708	140,588
Leased property under financing leases, net	4,785	6,431
Other assets	145,213	115,892
Goodwill	165,903	165,903
Total assets	4,288,942	3,709,545
Current Liabilities:
Current portion of obligations under operating leases	26,194	27,635
Current portion of obligations under financing leases	2,487	2,303
Other accrued liabilities	237,994	200,977
Accrued compensation	146,932	126,921
Dividends payable	154,666	32,808
Total current liabilities	1,091,334	905,156
Deferred income taxes	128,435	150,222
Pension and postretirement benefit obligations	60,614	60,323
Other liabilities	866,499	753,357
Noncurrent portion of obligations under operating leases	102,271	118,763
Noncurrent portion of obligations under financing leases	5,032	7,519
Long-term debt	599,159	598,817
Total liabilities	2,853,344	2,594,157
Commitments and Contingencies
Equity:
Additional paid in capital	135,953	135,953
Retained earnings	1,352,111	1,112,462
Accumulated other comprehensive loss	(4,276)	(84,837)
Total equity	1,435,598	1,115,388
Total liabilities and equity	4,288,942	3,709,545
Nonrelated Party
Current Assets:
Accounts receivable	555,933	532,047
Current Liabilities:
Accounts payable, trade	383,562	351,729
Related Party
Current Assets:
Accounts receivable	51,936	35,786
Current Liabilities:
Accounts payable, trade	139,499	162,783
Convertible Preferred Stock
Equity:
Preferred Stock	0	0
Nonconvertible Preferred Stock
Equity:
Preferred Stock	0	0
Preferred Stock
Equity:
Preferred Stock	0	0
Common Stock
Equity:
Common Stock	11,431	11,431
Treasury stock, at cost	$ (60,845)	$ (60,845)
Common stock, shares issued (in shares)	11,431,367	11,431,367
Class B Common Stock
Equity:
Common Stock	$ 1,633	$ 1,633
Treasury stock, at cost	$ (409)	$ (409)
Common stock, shares issued (in shares)	1,632,810	1,632,810
Class C Common Stock
Equity:
Common Stock	$ 0	$ 0
Common stock, shares issued (in shares)	0	0
Distribution agreements, net
Current Assets:
Intangible assets, net	$ 817,143	$ 842,035
Customer lists, net
Current Assets:
Intangible assets, net	$ 7,499	$ 9,165