Investment in Unconsolidated Subsidiary (Assets, Liabilities and members' equity) (Details) - USD ($) $ in Thousands	Sep. 28, 2024	Jun. 29, 2024	Mar. 30, 2024	Dec. 31, 2023	Dec. 30, 2023	Sep. 30, 2023	Jul. 01, 2023	Apr. 01, 2023	Dec. 31, 2022
ASSETS
Property, Plant and Equipment, Net	$ 2,856,229				$ 2,935,185
Other assets	222,127				234,960
Segment Assets	10,572,719				11,061,084
LIABILITIES AND STOCKHOLDERS’ EQUITY
Other non-current liabilities	211,011				349,809
Members equity	4,634,294	$ 4,542,613	$ 4,682,990		4,693,691	$ 4,466,982	$ 4,450,563	$ 4,121,599	$ 3,896,490
Liabilities and equity	10,572,719				$ 11,061,084
Diamond Green Diesel Holdings LLC Joint Venture
ASSETS
Cash	195,666			$ 236,794
Other Assets, Current	1,472,709			1,640,636
Property, Plant and Equipment, Net	3,886,783			3,838,800
Other assets	104,317			89,697
Segment Assets	5,659,475			5,805,927
LIABILITIES AND STOCKHOLDERS’ EQUITY
Revolver	0			250,000
Current portion of long-term debt	29,496			28,639
Other current liabilities	384,496			417,918
Long term debt	714,783			737,097
Other non-current liabilities	17,043			16,996
Members equity	4,513,657			4,355,277
Liabilities and equity	$ 5,659,475			$ 5,805,927