Quarterly report pursuant to Section 13 or 15(d)

Financial Instruments - Derivative Gross Presentation on Consolidated Balance Sheets (Details)

v2.4.0.8
Financial Instruments - Derivative Gross Presentation on Consolidated Balance Sheets (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
LNG Inventory Derivatives [Member]
    
Derivative [Line Items]    
Derivative Liability, Gross Amounts Recognized $ (219) $ (171)
Derivative Liability, Gross Amounts Offset in our Balance Sheets (219) (171)
Net Amounts Presented in our Balance Sheets 0 0
Derivative Liability, Gross Amount Not Offset in our Balance Sheets - Derivative Instrument 0 0
Gross Amount Not Offset in our Balance Sheets - Cash Collateral Received (Paid) 0 0
Derivative Liability, Net Amount 0 0
Fuel Derivatives [Member]
    
Derivative [Line Items]    
Derivative Asset, Gross Amounts Recognized   126
Derivative Liability, Gross Amounts Recognized (144)  
Derivative Asset, Gross Amounts Offset in our Balance Sheets   0
Derivative Liability, Gross Amounts Offset in our Balance Sheets (144)  
Net Amounts Presented in our Balance Sheets 0 126
Derivative Asset, Gross Amount Not Offset in our Balance Sheets - Derivative Instrument   0
Derivative Liability, Gross Amount Not Offset in our Balance Sheets - Derivative Instrument 0  
Gross Amount Not Offset in our Balance Sheets - Cash Collateral Received (Paid) 0 0
Derivative Asset, Net Amount   126
Derivative Liability, Net Amount 0  
Interest Rate Contract [Member] | Not Designated as Hedging Instrument [Member]
    
Derivative [Line Items]    
Derivative Asset, Gross Amounts Recognized 15,059 98,123
Derivative Asset, Gross Amounts Offset in our Balance Sheets 0 0
Net Amounts Presented in our Balance Sheets 15,059 98,123
Derivative Asset, Gross Amount Not Offset in our Balance Sheets - Derivative Instrument 0 0
Gross Amount Not Offset in our Balance Sheets - Cash Collateral Received (Paid) 0 0
Derivative Asset, Net Amount 15,059 98,123
Interest Rate Contract 2 [Member] | Not Designated as Hedging Instrument [Member]
    
Derivative [Line Items]    
Derivative Liability, Gross Amounts Recognized   (13,484)
Derivative Liability, Gross Amounts Offset in our Balance Sheets   0
Net Amounts Presented in our Balance Sheets   (13,484)
Derivative Liability, Gross Amount Not Offset in our Balance Sheets - Derivative Instrument   0
Gross Amount Not Offset in our Balance Sheets - Cash Collateral Received (Paid)   0
Derivative Liability, Net Amount   (13,484)
Other Current Assets [Member] | Fuel Derivative or LNG Inventory Derivative [Member]
    
Derivative [Line Items]    
Gross Amount Not Offset in our Balance Sheets - Cash Collateral Received (Paid) $ 6,600 $ 5,900