Quarterly report pursuant to Section 13 or 15(d)

Financial Instruments - Derivative Instruments, Gain (Loss) (Details)

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Financial Instruments - Derivative Instruments, Gain (Loss) (Details) (USD $)
 1 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended
May 31, 2014
Interest Rate Contract [Member]
Sep. 30, 2014
Derivative gain (loss), net [Member]
Interest Rate Contract [Member]
Sep. 30, 2014
Derivative gain (loss), net [Member]
Interest Rate Contract [Member]
Sep. 30, 2014
Revenues [Member]
LNG Inventory Derivatives [Member]
Sep. 30, 2013
Revenues [Member]
LNG Inventory Derivatives [Member]
Sep. 30, 2014
Revenues [Member]
LNG Inventory Derivatives [Member]
Sep. 30, 2013
Revenues [Member]
LNG Inventory Derivatives [Member]
Sep. 30, 2013
Derivative gain (loss), net [Member]
Interest Rate Contract [Member]
Sep. 30, 2013
Derivative gain (loss), net [Member]
Interest Rate Contract [Member]
Sep. 30, 2014
Derivative gain (loss), net [Member]
LNG Inventory Derivatives [Member]
Sep. 30, 2013
Derivative gain (loss), net [Member]
LNG Inventory Derivatives [Member]
Sep. 30, 2014
Derivative gain (loss), net [Member]
LNG Inventory Derivatives [Member]
Sep. 30, 2013
Derivative gain (loss), net [Member]
LNG Inventory Derivatives [Member]
Sep. 30, 2014
Derivative gain (loss), net [Member]
Fuel Derivatives [Member]
Sep. 30, 2013
Derivative gain (loss), net [Member]
Fuel Derivatives [Member]
Sep. 30, 2014
Derivative gain (loss), net [Member]
Fuel Derivatives [Member]
Sep. 30, 2013
Derivative gain (loss), net [Member]
Fuel Derivatives [Member]
Derivative Instruments, Gain (Loss) [Line Items]                                  
Derivative, Gain (Loss) on Derivative, Net $ (9,300,000)     $ 0 $ 0 $ (31,000) $ (442,000)     $ 194,000 $ 201,000 $ (345,000) $ 976,000 $ 0 [1] $ (55,000) [1] $ 281,000 [1] $ (3,000) [1]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net   $ 5,379,000 $ (89,222,000)         $ (22,481,000) $ 60,707,000                
[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 exception from derivative accounting and has recorded as operating and maintenance expense.