XML 32 R44.htm IDEA: XBRL DOCUMENT v3.3.0.814
Fair Value Measurements (Details) - Fair Value, Measurements, Recurring - USD ($)
$ in Thousands
Sep. 30, 2015
Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets $ 129 $ 216
Derivative liabilities (7,310) (12,004)
Contingent payment arrangement (500)  
Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets 0 0
Derivative liabilities (3,651) (6,842)
Contingent payment arrangement 0  
Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets 129 216
Derivative liabilities (3,659) (5,162)
Contingent payment arrangement 0  
Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets 0 0
Derivative liabilities 0 0
Contingent payment arrangement (500)  
Non-trading Commodity Contract    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets 124 80
Derivative liabilities (7,266) (11,827)
Non-trading Commodity Contract | Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets 0 0
Derivative liabilities (3,617) (6,810)
Non-trading Commodity Contract | Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets 124 80
Derivative liabilities (3,649) (5,017)
Non-trading Commodity Contract | Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets 0 0
Derivative liabilities 0 0
Trading Commodity Contract    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets 5 136
Derivative liabilities (44) (177)
Trading Commodity Contract | Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets 0 0
Derivative liabilities (34) (32)
Trading Commodity Contract | Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets 5 136
Derivative liabilities (10) (145)
Trading Commodity Contract | Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative assets 0 0
Derivative liabilities $ 0 $ 0