Investment in National Beef Packing Company (Details - Summary of operations) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 24, 2022	Sep. 25, 2021	Sep. 24, 2022	Sep. 25, 2021
Equity Method Investments and Joint Ventures [Abstract]
Net sales	$ 2,846,156	$ 3,202,208	$ 8,819,780	$ 8,466,211
Costs and expenses:
Cost of sales	2,492,127	2,328,716	7,587,149	6,562,610
Selling, general, and administrative expenses	24,408	22,797	69,628	63,714
Depreciation and amortization	30,945	29,148	90,254	84,821
Total costs and expenses	2,547,480	2,380,661	7,747,031	6,711,145
Operating income	298,676	821,547	1,072,749	1,755,066
Other income (expense):
Interest income	23	0	90	99
Interest expense	(1,121)	(1,563)	(4,809)	(6,359)
Income before taxes	297,578	819,984	1,068,030	1,748,806
Income tax expense	(1,285)	(698)	(4,225)	(2,314)
Net income	$ 296,293	$ 819,286	$ 1,063,805	$ 1,746,492