Quarterly report pursuant to Section 13 or 15(d)

Financial Instruments - Fair Value and Settlements of Derivatives (Details)

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Financial Instruments - Fair Value and Settlements of Derivatives (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative gain (loss), net $ 95,509 $ 261 $ 78,041 $ (575)
LNG Inventory Derivatives [Member]
        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative gain (loss), net 884 (246) 334 925
Fuel Derivatives [Member]
        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative gain (loss), net $ (464) [1] $ 261 [1] $ 52 [1] $ (575) [1]
[1] Excludes settlements of hedges of the exposure to price risk attributable to future purchases of natural gas to be utilized as fuel to operate the Sabine Pass LNG terminal for which Sabine Pass LNG has elected the normal purchase normal sale exemption from derivative accounting.