Investment in Unconsolidated Subsidiary (Details) $ in Thousands	7 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 29, 2018 USD ($)	Dec. 30, 2017 USD ($) barrel / day $ / gal	Dec. 31, 2016 USD ($)	Dec. 31, 2016 USD ($)	Jan. 02, 2016 USD ($)	Dec. 31, 2015 USD ($)	May 31, 2011 USD ($)	Jan. 21, 2011
Schedule of Equity Method Investments [Line Items]
Processing Capability, Barrels of Input Feedstock Per Day | barrel / day			12,000
Investment in the joint venture			$ 302,038	$ 292,717	$ 292,717
Gain from equity method investments			$ 28,504	70,379		$ 73,416
Dollars per Gallon | $ / gal			1.00
Renewable Diesel, Percentage			0.10%
Proceeds from Equity Method Investment, Dividends or Distributions, Return of Capital			$ 26,761	26,317		26,589
Diamond Green Diesel Holdings LLC Joint Venture [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage									50.00%
Line of credit facility, term	14 years
Term loan facility								$ 221,300
Investment in the joint venture			273,900
Gain from equity method investments			28,200	69,900		71,900
Income Tax Credits and Adjustments					$ 160,600		$ 156,600
Proceeds from Equity Method Investment, Dividends or Distributions, Return of Capital			$ 25,000	$ 25,000		$ 25,000
Valero Energy Corporation [Member] | Diamond Green Diesel Holdings LLC Joint Venture [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage									50.00%
Scenario, Forecast [Member] | Diamond Green Diesel Holdings LLC Joint Venture [Member]
Schedule of Equity Method Investments [Line Items]
Income Tax Credits and Adjustments		$ 160,400