Investment in Unconsolidated Subsidiary (Revenues and Expenses) (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jul. 01, 2023	Apr. 01, 2023	Jul. 02, 2022	Apr. 02, 2022	Jul. 01, 2023	Jul. 02, 2022
Revenues:
Operating revenues	$ 1,757,621		$ 1,650,188		$ 3,548,793	$ 3,016,522
Expenses:
Cost of sales and operating expenses	1,359,702		1,231,507		2,726,675	2,252,084
Total costs and expenses	1,613,901		1,445,256		3,243,565	2,650,495
Operating income	356,684		278,612		612,529	511,511
Net income	255,197	$ 189,855	204,829	$ 190,731	445,052	395,560
Diamond Green Diesel Holdings LLC Joint Venture [Member]
Revenues:
Operating revenues	2,246,111		1,455,886		3,926,161	2,436,578
Expenses:
Cost of sales and operating expenses	1,751,315		1,274,665		3,172,719	2,082,237
Depreciation, amortization and accretion expense	58,315		31,317		116,922	57,809
Total costs and expenses	1,809,630		1,305,982		3,289,641	2,140,046
Operating income	436,481		149,904		636,520	296,532
Other income	2,121		722		4,162	711
Interest and debt expense, net	(12,674)		(3,266)		(26,080)	(6,275)
Net income	$ 425,928		$ 147,360		$ 614,602	$ 290,968