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Commitments and Contingencies (Details 2) (USD $)
 3 Months Ended 9 Months Ended 12 Months Ended 1 Months Ended 0 Months Ended 9 Months Ended 12 Months Ended 1 Months Ended 9 Months Ended 1 Months Ended 9 Months Ended 1 Months Ended 9 Months Ended 12 Months Ended 1 Months Ended 9 Months Ended 1 Months Ended 3 Months Ended 9 Months Ended 0 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
WRC
Dec. 31, 2011
WRC
year
Apr. 30, 2012
KCC and FERC
year
component
Apr. 30, 2012
MAPL
anniversary
contract
Aug. 10, 2012
Litigation
Deutsche Bank
Sep. 30, 2012
Litigation
CRNF
year
Dec. 31, 2011
Litigation
CRNF
Dec. 31, 2010
Litigation
CRNF
Dec. 31, 2009
Litigation
CRNF
Dec. 31, 2008
Litigation
CRNF
May 31, 2010
Litigation
Oklahoma and Kansas
CRRM
lawsuit
Sep. 30, 2012
Litigation
Oklahoma
CRRM
lawsuit
Sep. 30, 2012
Litigation
New Mexico
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
Sep. 30, 2012
Flood, Crude Oil Discharge and Insurance
plaintiff
Oct. 25, 2010
Flood, Crude Oil Discharge and Insurance
Oct. 31, 2010
Flood, Crude Oil Discharge and Insurance
Minimum
Sep. 30, 2012
EHS
landfill
Dec. 31, 2011
EHS
landfill
Feb. 24, 2010
EHS
Mar. 31, 2012
EHS
CRRM
Sep. 30, 2012
EHS
CRRM
issue
Feb. 28, 2010
EHS
Maximum
year
Sep. 30, 2011
EHS
Minimum
Feb. 28, 2010
EHS
Minimum
year
Sep. 30, 2012
MSAT II
CRRM and CRT
Sep. 30, 2012
MSAT II
WRC
Sep. 30, 2012
Goldman Sachs Tender Offer Dispute
Sep. 28, 2012
Wynnewood refinery incident
item
Commitments and Contingencies                                                                      
Number of lawsuits filed                             2 15 2                                    
Property tax abatement period (in years)                   10                                                  
Increase in property tax expenses                     $ 11,400,000 $ 11,700,000 $ 10,700,000 $ 10,700,000                                          
Tenure of pipeage contracts under Settlement Agreement (in years)             1                                                        
Number of components of Settlement Rates             2                                                        
Period until which third party entity would provide an estimate of pipeline integrity costs (in years)               10                                                      
Number of pipeage contracts               2                                                      
Number of private claimants                                       16                              
Aggregate amount of claims                 18,500,000                 3,200,000 3,200,000 4,400,000                           18,500,000  
Number of additional plaintiffs                                     3                                
Number of claims not settled                                         1                            
Reimbursement of oversight cost                                           1,800,000                          
Anticipated civil penalties associated with the proceeding                                             100,000             100,000          
Insurance proceeds under primary environmental liability insurance policy                                         25,000,000                            
Environmental, Health, and Safety ("EHS") Matters                                                                      
Environmental accruals                                               1,600,000 1,900,000                    
Environmental accruals included in other current liabilities                                               300,000 500,000                    
Estimated closure and post-closure costs                                               900,000 900,000                    
Number of landfills                                               2 2                    
Estimated future payments for environmental obligations                                                                      
Three months ending December 31, 2012                                               147,000                      
2013                                               200,000                      
2014                                               162,000                      
2015                                               162,000                      
2016                                               105,000                      
Thereafter                                               1,055,000                      
Undiscounted total                                               1,831,000                      
Less amounts representing interest at 1.59%                                               193,000                      
Accrued environmental liabilities at the end of the year                                               1,638,000                      
Interest rate (as a percent)                                               1.59%                      
Remaining amount expected to be spent for environmental remediation compliance, including capital expenditures                                                               45,000,000 49,000,000    
Expenses related to environmental, health and safety ("EHS") matters 7,700,000 1,100,000 18,700,000 3,600,000                                                              
Renewable fuel as percentage of all fuel used as required by the EPA under the Renewable Fuel Standard                                                       9.00%              
Marquee issues under the Clean Air Act                                                       4              
Period over which incremental capital expenditure not material and limited primarily to retrofit and replacement of heaters and boilers (in years)                                                         7   5        
Environmental civil penalty                                                   900,000 700,000                
Extension period for compliance with Renewable Fuel Standard if hardship relief is granted (in years)           2                                                          
Percentage of refining capacity                                                     90.00%                
Remaining costs associated with Second Consent Decree                                                     49,000,000                
Portion of remaining costs associated with Second Consent Decree to be recorded as capital expenditures                                                     47,000,000                
Estimated cost of completion of project                                                     1,200,000                
Payment of civil penalties         $ 950,000                                                            
Number of employees fatally injured                                                                     2