Investment in Unconsolidated Subsidiary (Assets, Liabilities and members' equity) (Details) - USD ($) $ in Thousands	Apr. 01, 2023	Mar. 31, 2023	Dec. 31, 2022	Apr. 02, 2022	Jan. 01, 2022
ASSETS
Assets, Current	$ 1,902,506		$ 1,638,097
Property, Plant and Equipment, Net	2,712,823		2,462,082
Other assets	231,960		136,268
Segment Assets	10,861,132		9,202,370
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current portion of long-term debt	118,804		69,846
Other non-current liabilities	414,542		298,933
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	4,121,599		3,896,490	$ 3,495,650	$ 3,347,785
Liabilities and Equity	$ 10,861,132		9,202,370
Diamond Green Diesel Holdings LLC Joint Venture [Member]
ASSETS
Assets, Current		$ 1,485,372	1,304,805
Property, Plant and Equipment, Net		3,840,139	3,866,854
Other assets		80,310	61,665
Segment Assets		5,405,821	5,233,324
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current portion of long-term debt		217,282	217,066
Other Liabilities, Current		298,893	515,023
Long-term Debt, Excluding Current Maturities		767,802	774,783
Other non-current liabilities		17,103	17,249
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest		4,104,741	3,709,203
Liabilities and Equity		$ 5,405,821	$ 5,233,324