CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 29, 2024	Dec. 31, 2023
Current Assets:
Cash and cash equivalents	$ 401,260	$ 635,269
Short-term investments	183,639	0
Allowance for doubtful accounts	(16,575)	(16,060)
Accounts receivable, other	67,096	67,533
Inventories	361,086	321,932
Prepaid expenses and other current assets	89,593	88,585
Total current assets	1,714,853	1,705,128
Property, plant and equipment, net	1,321,681	1,320,563
Right-of-use assets - operating leases	116,129	122,708
Leased property under financing leases, net	4,373	4,785
Other assets	156,140	145,213
Goodwill	165,903	165,903
Total assets	4,297,092	4,288,942
Current Liabilities:
Current portion of obligations under operating leases	25,085	26,194
Current portion of obligations under financing leases	2,536	2,487
Other accrued liabilities	254,465	237,994
Accrued compensation	82,297	146,932
Dividends payable	0	154,666
Total current liabilities	917,876	1,091,334
Deferred income taxes	185,001	128,435
Pension and postretirement benefit obligations	60,779	60,614
Other liabilities	831,596	866,499
Noncurrent portion of obligations under operating leases	96,979	102,271
Noncurrent portion of obligations under financing leases	4,382	5,032
Long-term debt	599,293	599,159
Total liabilities	2,695,906	2,853,344
Commitments and Contingencies
Equity:
Additional paid-in capital	135,953	135,953
Retained earnings	1,517,852	1,352,111
Accumulated other comprehensive loss	(4,429)	(4,276)
Total equity	1,601,186	1,435,598
Total liabilities and equity	4,297,092	4,288,942
Nonrelated Party
Current Assets:
Accounts receivable	568,014	555,933
Current Liabilities:
Accounts payable	346,999	383,562
Related Party
Current Assets:
Accounts receivable	60,740	51,936
Current Liabilities:
Accounts payable	206,494	139,499
Common Stock
Equity:
Common Stock	11,431	11,431
Treasury stock, at cost	(60,845)	(60,845)
Class B Common Stock
Equity:
Common Stock	1,633	1,633
Treasury stock, at cost	(409)	(409)
Distribution agreements, net
Current Assets:
Intangible assets, net	810,920	817,143
Customer lists, net
Current Assets:
Intangible assets, net	$ 7,093	$ 7,499