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Investment in Unconsolidated Subsidiary (Details)
$ in Thousands
12 Months Ended
Dec. 29, 2018
USD ($)
barrel / day
$ / gal
Dec. 30, 2017
USD ($)
Dec. 31, 2016
USD ($)
Jan. 21, 2011
Schedule of Equity Method Investments [Line Items]        
Processing Capability, Barrels of Input Feedstock Per Day | barrel / day 20,000      
Investment in the joint venture $ 410,177 $ 302,038    
Gain from equity method investments $ 159,229 28,504 $ 70,379  
Dollars per Gallon | $ / gal 1.00      
Renewable Diesel, Percentage 0.10%      
Proceeds from Equity Method Investment, Dividends or Distributions, Return of Capital $ 67,638 26,761 26,317  
Diamond Green Diesel Holdings LLC Joint Venture [Member]        
Schedule of Equity Method Investments [Line Items]        
Equity Method Investment, Ownership Percentage       50.00%
Investment in the joint venture 368,700      
Gain from equity method investments 159,800 28,200 69,900  
Income Tax Credits and Adjustments 160,400   160,600  
Proceeds from Equity Method Investment, Dividends or Distributions, Return of Capital $ 65,000 $ 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%