Investment in Unconsolidated Subsidiary (Revenues and Expenses) (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jul. 01, 2023	Apr. 01, 2023	Oct. 01, 2022	Jul. 02, 2022	Apr. 02, 2022	Sep. 30, 2023	Oct. 01, 2022
Revenues:
Operating revenues	$ 1,625,204			$ 1,747,599			$ 5,173,997	$ 4,764,121
Expenses:
Cost of sales and operating expenses	1,238,733			1,371,237			3,965,408	3,623,321
Total costs and expenses	1,501,224			1,582,682			4,744,789	4,233,177
Operating income	178,369			268,331			790,898	779,842
Net income	128,081	$ 255,197	$ 189,855	192,301	$ 204,829	$ 190,731	573,133	587,861
Diamond Green Diesel Holdings LLC Joint Venture [Member]
Revenues:
Operating revenues	1,430,666			1,470,036			5,356,827	3,906,614
Expenses:
Cost of sales and operating expenses	1,257,766			1,229,371			4,430,485	3,311,608
Depreciation, amortization and accretion expense	55,118			31,793			172,040	89,602
Total costs and expenses	1,312,884			1,261,164			4,602,525	3,401,210
Operating income	117,782			208,872			754,302	505,404
Other income	2,701			1,215			6,863	1,926
Interest and debt expense, net	(11,705)			(3,259)			(37,785)	(9,534)
Net income	$ 108,778			$ 206,828			$ 723,380	$ 497,796