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Commitments and Contingencies (Details 2) (USD $)
 3 Months Ended 0 Months Ended 3 Months Ended 12 Months Ended 0 Months Ended 1 Months Ended 3 Months Ended 3 Months Ended 12 Months Ended 1 Months Ended 3 Months Ended 1 Months Ended 3 Months Ended 0 Months Ended 3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2013
WRC
Mar. 31, 2013
Maximum
CRRM
Feb. 25, 2013
Litigation
CRNF
Mar. 31, 2013
Litigation
CRNF
Dec. 31, 2012
Litigation
CRNF
Dec. 31, 2011
Litigation
CRNF
Dec. 31, 2010
Litigation
CRNF
Dec. 31, 2009
Litigation
CRNF
Dec. 31, 2008
Litigation
CRNF
Aug. 10, 2012
Litigation
Deutsche Bank
May 31, 2010
Litigation
Oklahoma and Kansas
CRRM
lawsuit
Jun. 30, 2010
Flood, Crude Oil Discharge and Insurance
Oct. 31, 2009
Flood, Crude Oil Discharge and Insurance
plaintiff
May 31, 2008
Flood, Crude Oil Discharge and Insurance
claimant
Mar. 31, 2013
Flood, Crude Oil Discharge and Insurance
plaintiff
Oct. 25, 2010
Flood, Crude Oil Discharge and Insurance
Apr. 19, 2013
Flood, Crude Oil Discharge and Insurance
CRRM
Mar. 31, 2013
EHS
landfill
Dec. 31, 2012
EHS
landfill
Mar. 31, 2012
EHS
CRRM
Mar. 31, 2013
EHS
CRRM
issue
Mar. 31, 2012
EHS
Maximum
Mar. 31, 2012
EHS
Minimum
Mar. 31, 2013
MSAT II
Mar. 31, 2013
MSAT II
CRRM and CRT
Mar. 31, 2013
MSAT II
WRC
Jun. 21, 2012
Goldman Sachs Tender Offer Dispute
Sep. 28, 2012
Wynnewood refinery incident
item
Mar. 31, 2013
New Vitol Agreement
CRRM
Commitments and Contingencies                                                              
Renewal term of agreement                                                             1 year
Number of days for prior notice of nonrenewal                                                             180 days
Number of lawsuits filed                         2                                    
Aggregate amount of claims                       $ 18,500,000   $ 3,200,000 $ 3,200,000 $ 4,400,000                         $ 18,500,000    
Property tax abatement period           10 years                                                  
Increase in property tax expenses             11,300,000 11,400,000 11,700,000 10,700,000 10,700,000                                        
Decrease in property tax expenses         10,500,000                                                    
Number of private claimants                               16                              
Number of additional plaintiffs                             3                                
Number of claims not settled                                 1                            
Reimbursement of oversight cost                                   1,800,000                          
Environmental civil penalty plus accrued interest for CWA violations                                     600,000                        
Amount of reimbursement agreed for oversight cost                                     1,700,000                        
Insurance proceeds under primary environmental liability insurance policy 1,260,000                               25,000,000                            
Environmental, Health, and Safety ("EHS") Matters                                                              
Environmental accruals                                       2,200,000 2,300,000                    
Environmental accruals included in other current liabilities                                       600,000 700,000                    
Estimated closure and post-closure costs                                       800,000 800,000                    
Number of landfills                                       2 2                    
Estimated future payments for environmental obligations                                                              
Nine months ending December 31, 2013                                       533,000                      
2014                                       340,000                      
2015                                       190,000                      
2016                                       132,000                      
2017                                       114,000                      
Thereafter                                       1,068,000                      
Undiscounted total                                       2,377,000                      
Less amounts representing interest at [ ]%                                       219,000                      
Accrued environmental liabilities at the end of the year                                       2,158,000                      
Interest rate (as a percent)                                       1.62%                      
Acceleration of project completion                                                   3 months          
Remaining amount expected to be spent for environmental remediation compliance, including capital expenditures       20,000,000                                             59,000,000 94,000,000      
Required percentage of refining capacity                                             9.60%                
Marquee issues under the Clean Air Act                                             4                
Percentage of refining capacity                                           90.00%                  
Environmental civil penalty                                           700,000                  
Remaining costs associated with Second Consent Decree                                           41,000,000                  
Portion of remaining costs associated with Second Consent Decree to be recorded as capital expenditures                                           39,000,000                  
Estimated cost of completion of project                                           1,200,000                  
Period over which incremental capital expenditure not material and limited primarily to retrofit and replacement of heaters and boilers                                               7 years 5 years            
Payment of civil penalties     950,000                                                        
Expected remaining costs under consent order     2,000,000                                                        
Expenses related to environmental, health and safety ("EHS") matters $ 22,200,000 $ 5,300,000                                                          
Number of employees fatally injured                                                           2