Processing Capability, Barrels of Fuel Per Day

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Investment in Unconsolidated Subsidiary (Details) barrel in Thousands, $ in Thousands	1 Months Ended	3 Months Ended
	Apr. 30, 2020 USD ($)	Mar. 28, 2020 USD ($) barrel	Mar. 30, 2019 USD ($)	Dec. 28, 2019 USD ($)	Jan. 21, 2011
Schedule of Equity Method Investments [Line Items]
Investment in the joint venture		$ 802,184		$ 689,354
Income (loss) from equity method investments		869	$ (504)
Distributions of earnings from Diamond Green Diesel and other unconsolidated subsidiaries		$ 0
Diamond Green Diesel Holdings LLC Joint Venture [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage					50.00%
Processing cabaility \| barrel		20
Investment in the joint venture		$ 773,800
Income (loss) from equity method investments		97,800	$ 24,300
Income Tax Credits and Adjustments		$ 80,000
Diamond Green Diesel Holdings LLC Joint Venture [Member] \| Valero Energy Corporation [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage					50.00%
Subsequent Event
Schedule of Equity Method Investments [Line Items]
Distributions of earnings from Diamond Green Diesel and other unconsolidated subsidiaries	$ 125,000