Quarterly report pursuant to Section 13 or 15(d)

Financial Instruments - Fair Value of Derivative Instruments by Balance Sheet Location (Details)

v2.4.0.8
Financial Instruments - Fair Value of Derivative Instruments by Balance Sheet Location (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
LNG Inventory Derivatives [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net $ 101 $ (161)
Derivative, Collateral, Right to Reclaim Cash 0 0
LNG Inventory Derivatives [Member] | Prepaid Expenses And Other [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net 101 (161)
Fuel Derivatives [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net 0 27
Derivative, Collateral, Right to Reclaim Cash 0 0
Fuel Derivatives [Member] | Prepaid Expenses And Other [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net 0 27
Interest Rate Contract [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net 7,130 84,639
Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative, Collateral, Right to Reclaim Cash 0 0
Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Noncurrent Derivative Assets [Member]
   
Derivatives, Fair Value [Line Items]    
Interest Rate Derivative Assets, at Fair Value 20,236 98,123
Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Other Current Liabilities [Member]
   
Derivatives, Fair Value [Line Items]    
Interest Rate Derivative Liabilities, at Fair Value $ (13,106) $ (13,484)