XML 19 R57.htm IDEA: XBRL DOCUMENT v2.4.0.6
Derivative Financial Instruments (Details) (USD $)
 3 Months Ended 3 Months Ended 1 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Apr. 13, 2011
CRNF
Term loan facility
Mar. 31, 2012
Other derivative agreements
Mar. 31, 2011
Other derivative agreements
Mar. 31, 2012
Commodity derivatives
Mar. 31, 2012
Commodity swap
Mar. 31, 2012
Designated as hedges
Interest rate swap agreements entered into on June 30, 2011
CRNF
D
Mar. 31, 2012
Designated as hedges
Interest rate swap agreements entered into on July 1, 2011
CRNF
D
Mar. 31, 2012
Designated as hedges
Interest rate swap agreements
CRNF
Jul. 01, 2011
Designated as hedges
Interest rate swap agreements
CRNF
agreement
Jun. 30, 2011
Designated as hedges
Interest rate swap agreements
CRNF
agreement
Mar. 31, 2012
Not designated as hedges
Commodity derivative contracts entered into during September 2011
barrel
Jun. 30, 2010
Not designated as hedges
Interest rate swap agreements
CRLLC
Derivative Financial Instruments                            
Realized gain (loss)       $ (19,086,000) $ (18,848,000)                  
Unrealized gain (loss) (128,167,000) (3,258,000)   (128,167,000) (3,258,000) 200,000 128,300,000              
Realized gain (loss) (19,086,000) (18,848,000)   (147,253,000) (22,106,000)   10,900,000              
Number of barrels                         17,700,000  
Net liability                         47,900,000  
Portion of net unrealized loss in current liabilities                         42,800,000  
Portion of net unrealized loss in long-term liabilities                         5,200,000  
Portion of net unrealized gain (loss) in current assets           700,000             (100,000)  
Realized loss           8,200,000                
Number of agreements                     2 2    
Borrowing capacity on credit facility     125,000,000             125,000,000        
Aggregate notional amount                   62,500,000        
Floating rate basis               Three months LIBOR Three months LIBOR         Three months LIBOR
Fixed rate (as a percent)               1.94% 1.975%          
Settlement period (in days)               90 90          
Average fixed rate of interest (as a percent)                   1.96%        
Effective rate (as a percent)                   4.60%        
Interest expense                   $ 200,000