Quarterly report pursuant to Section 13 or 15(d)

Property, Plant and Equipment (Details)

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Property, Plant and Equipment (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Fixed assets [Member]
       
Property, Plant and Equipment [Line Items]        
Depreciation expense $ 0.7 $ 0.8 $ 2.7 $ 1.6
Sabine Pass LNG terminal [Member] | LNG terminal costs [Member]
       
Property, Plant and Equipment [Line Items]        
Depreciation expense 10.5 10.7 21.1 21.4
Creole Trail LNG [Member] | Natural gas pipeline costs [Member]
       
Property, Plant and Equipment [Line Items]        
Depreciation expense $ 3.7 $ 3.8 $ 7.4 $ 7.5