Investment in National Beef Packing Company (Details - Summary of operations) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 25, 2022	Jun. 26, 2021	Jun. 25, 2022	Jun. 26, 2021
Equity Method Investments and Joint Ventures [Abstract]
Net sales	$ 2,949,870	$ 2,948,388	$ 5,973,624	$ 5,264,003
Costs and expenses:
Cost of sales	2,540,322	2,210,339	5,095,022	4,233,893
Selling, general, and administrative expenses	23,849	22,052	45,220	40,917
Depreciation and amortization	29,873	28,004	59,309	55,673
Total costs and expenses	2,594,044	2,260,395	5,199,551	4,330,483
Operating income	355,826	687,993	774,073	933,520
Other income (expense):
Interest income	40	12	67	98
Interest expense	(2,212)	(2,396)	(3,688)	(4,796)
Income before taxes	353,654	685,609	770,452	928,822
Income tax expense	(1,497)	(952)	(2,940)	(1,616)
Net income	$ 352,157	$ 684,657	$ 767,512	$ 927,206