Investment in Unconsolidated Subsidiary (Revenues and Expenses) (Details) - USD ($) $ in Thousands	3 Months Ended						6 Months Ended
	Jul. 02, 2022	Jun. 30, 2022	Apr. 02, 2022	Jul. 03, 2021	Jun. 30, 2021	Apr. 03, 2021	Jul. 02, 2022	Jun. 30, 2022	Jul. 03, 2021	Jun. 30, 2021
Revenues:
Operating revenues	$ 1,650,188			$ 1,198,669			$ 3,016,522		$ 2,245,385
Expenses:
Cost of sales and operating expenses	1,231,507			878,073			2,252,084		1,650,857
Total costs and expenses	1,445,256			1,056,199			2,650,495		2,005,629
Operating income	278,612			268,258			511,511		467,769
Net income	$ 204,829		$ 190,731	$ 198,069		$ 153,418	$ 395,560		$ 351,487
Diamond Green Diesel Holdings LLC Joint Venture [Member] | Equity Method Investment, Nonconsolidated Investee or Group of Investees
Revenues:
Operating revenues		$ 1,455,886			$ 571,859			$ 2,436,578		$ 1,003,492
Expenses:
Cost of sales and operating expenses		1,274,665			307,857			2,082,237		523,091
Depreciation, amortization and accretion expense		31,317			11,995			57,809		23,682
Total costs and expenses		1,305,982			319,852			2,140,046		546,773
Operating income		149,904			252,007			296,532		456,719
Other income		722			353			711		411
Interest and debt expense, net		(3,266)			(784)			(6,275)		(1,104)
Net income		$ 147,360			$ 251,576			$ 290,968		$ 456,026