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Commitments and Contingencies (Details 6)
$ in Thousands
 1 Months Ended 12 Months Ended 94 Months Ended
Aug. 01, 2016
USD ($)
Mar. 31, 2012
USD ($)
issue
Dec. 31, 2016
USD ($)
landfill
Dec. 31, 2015
USD ($)
landfill
Dec. 31, 2014
USD ($)
Nov. 01, 2014
USD ($)
WRC            
Environmental, Health, and Safety ("EHS") Matters            
Expected remaining costs under consent order     $ 3,900      
Expenses related to environmental, health and safety ("EHS") matters     17,200 $ 35,700 $ 100,600  
EHS            
Environmental, Health, and Safety ("EHS") Matters            
Environmental accruals     4,800 3,600    
Environmental accruals included in other current liabilities     200 2,000    
Estimated closure and post-closure costs     $ 400 $ 400    
Number of landfills | landfill     2 2    
EHS | CRRM            
Environmental, Health, and Safety ("EHS") Matters            
Cost of renewable identification numbers     $ 205,900 $ 123,900 $ 127,200  
Biofuel blending obligation recorded in other current liabilities     186,300 $ 9,500    
Marquee issues under the Clean Air Act | issue   4        
Percentage of refining capacity   95.00%        
Environmental civil penalty   $ 700        
Decrease in estimated costs of additional incremental capital expenditures     35,000      
Estimated costs of additional incremental capital expenditures     $ 6,000      
EHS | CRCT            
Environmental, Health, and Safety ("EHS") Matters            
Estimate of possible loss $ 500          
Payments for legal settlements $ 160          
MSAT II | CRRM            
Environmental, Health, and Safety ("EHS") Matters            
Expense incurred to date           $ 48,300
MSAT II | WRC            
Environmental, Health, and Safety ("EHS") Matters            
Expense incurred to date           $ 89,000