Quarterly report pursuant to Section 13 or 15(d)

Financial Instruments - Fair Value of Derivative Assets and Liabilities (Details)

v2.4.0.6
Financial Instruments - Fair Value of Derivative Assets and Liabilities (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
LNG Inventory Derivatives [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative Asset, Fair Value, Gross Asset   $ 232
Derivative Liability, Fair Value, Gross Liability (421)  
Derivative Liability, Fair Value, Net 0  
LNG Inventory Derivatives [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
   
Derivatives, Fair Value [Line Items]    
LNG Inventory Derivative assets   0
Fuel Derivatives liability 0  
LNG Inventory Derivatives [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
   
Derivatives, Fair Value [Line Items]    
LNG Inventory Derivative assets   0
Fuel Derivatives liability 0  
LNG Inventory Derivatives [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
   
Derivatives, Fair Value [Line Items]    
LNG Inventory Derivative assets   232
Fuel Derivatives liability (421)  
LNG Inventory Derivatives [Member] | Prepaid Expenses And Other [Member]
   
Derivatives, Fair Value [Line Items]    
LNG Inventory Derivative assets   232
LNG Inventory Derivatives [Member] | Prepaid Expenses And Other [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
   
Derivatives, Fair Value [Line Items]    
LNG Inventory Derivative assets   232
LNG Inventory Derivatives [Member] | Other Current Liabilities [Member]
   
Derivatives, Fair Value [Line Items]    
Fuel Derivatives liability (421)  
LNG Inventory Derivatives [Member] | Other Current Liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
   
Derivatives, Fair Value [Line Items]    
Fuel Derivatives liability (421)  
Fuel Derivatives [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative Asset, Fair Value, Gross Asset 420  
Derivative Liability, Fair Value, Gross Liability   (98)
Derivative Liability, Fair Value, Net   0
Fuel Derivatives [Member] | Fair Value, Inputs, Level 2 [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative Asset, Fair Value, Gross Asset 420  
Derivative Liability, Fair Value, Gross Liability   (98)
Fuel Derivatives [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
   
Derivatives, Fair Value [Line Items]    
LNG Inventory Derivative assets 0  
Fuel Derivatives liability   0
Fuel Derivatives [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
   
Derivatives, Fair Value [Line Items]    
LNG Inventory Derivative assets 0  
Fuel Derivatives liability   0
Fuel Derivatives [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
   
Derivatives, Fair Value [Line Items]    
LNG Inventory Derivative assets 420  
Fuel Derivatives liability   (98)
Interest Rate Contract [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative Liability, Fair Value, Net 0 0
Interest Rate Contract [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative Liability, Fair Value, Net   (26,424)
Interest Rate Contract [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative Liability, Fair Value, Net 0 0
Interest Rate Contract [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative Liability, Fair Value, Net   (26,424)
Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative Liability, Fair Value, Gross Liability (23,055) (5,134)
Derivative Liability, Fair Value, Net (23,055) (5,134)
Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Fair Value, Inputs, Level 2 [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative Liability, Fair Value, Net (23,055)  
Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative Liability, Fair Value, Net $ (23,055)