Investment in Unconsolidated Subsidiary (Assets, Liabilities and members' equity) (Details) - USD ($) $ in Thousands	Apr. 02, 2022	Mar. 31, 2022	Jan. 01, 2022	Dec. 31, 2021	Apr. 03, 2021	Jan. 02, 2021
ASSETS
Assets, Current	$ 1,259,033		$ 1,089,014
Property, Plant and Equipment, Net	1,867,880		1,840,080
Other assets	97,709		66,795
Segment Assets	6,615,616		6,133,728
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current portion of long-term debt	35,337		24,407
Other non-current liabilities	109,647		111,029
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	3,495,650		3,347,785		$ 3,029,946	$ 2,954,209
Liabilities and Equity	$ 6,615,616		$ 6,133,728
Diamond Green Diesel Holdings LLC Joint Venture [Member] | Equity Method Investment, Nonconsolidated Investee or Group of Investees
ASSETS
Assets, Current		$ 950,802		$ 686,294
Property, Plant and Equipment, Net		2,934,686		2,710,747
Other assets		59,196		51,514
Segment Assets		3,944,684		3,448,555
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current portion of long-term debt		165,356		165,092
Other Liabilities, Current		367,478		295,860
Long-term Debt, Excluding Current Maturities		340,591		344,309
Other non-current liabilities		17,328		17,531
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest		3,053,931		2,625,763
Liabilities and Equity		$ 3,944,684		$ 3,448,555