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Related Party Transactions (Details) (USD $)
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12 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2011
Sabine Pass LNG, LP [Member]
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Dec. 31, 2010
Sabine Pass LNG, LP [Member]
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Dec. 31, 2012
LNG Lease Agreement [Member]
Cheniere Marketing, LLC [Member]
MMBTU
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Dec. 31, 2011
LNG Lease Agreement [Member]
Cheniere Marketing, LLC [Member]
MMBTU
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Dec. 31, 2012
Service Agreements [Member]
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Dec. 31, 2011
Service Agreements [Member]
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Dec. 31, 2010
Service Agreements [Member]
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Dec. 31, 2012
Operation and Maintenance Agreement [Member]
Sabine Pass LNG, LP [Member]
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Dec. 31, 2012
Operation and Maintenance Agreement [Member]
Sabine Pass Liquefaction [Member]
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May 31, 2012
Management Services Agreement [Member]
Sabine Pass Liquefaction [Member]
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Dec. 31, 2011
Contracts for Sale and Purchase of Natural Gas and LNG [Member]
Natural Gas [Member]
Sabine Pass LNG, LP [Member]
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Dec. 31, 2010
Contracts for Sale and Purchase of Natural Gas and LNG [Member]
Natural Gas [Member]
Sabine Pass LNG, LP [Member]
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Dec. 31, 2012
Contracts for Sale and Purchase of Natural Gas and LNG [Member]
Natural Gas And Liquefied Natural Gas [Member]
Sabine Pass LNG, LP [Member]
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Dec. 31, 2011
Contracts for Sale and Purchase of Natural Gas and LNG [Member]
Natural Gas And Liquefied Natural Gas [Member]
Sabine Pass LNG, LP [Member]
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Dec. 31, 2010
Contracts for Sale and Purchase of Natural Gas and LNG [Member]
Natural Gas And Liquefied Natural Gas [Member]
Sabine Pass LNG, LP [Member]
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Dec. 31, 2012
LNG Terminal Export Agreement [Member]
Sabine Pass LNG and Cheniere Partners [Member]
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Dec. 31, 2011
LNG Terminal Export Agreement [Member]
Sabine Pass LNG and Cheniere Partners [Member]
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Dec. 31, 2010
LNG Terminal Export Agreement [Member]
Sabine Pass LNG and Cheniere Partners [Member]
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Jul. 31, 2010
LNG Terminal Capacity Agreements [Member]
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Dec. 31, 2012
LNG Terminal Capacity Agreements [Member]
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Dec. 31, 2012
LNG Terminal Capacity Agreements [Member]
Cheniere Marketing, LLC [Member]
MMBTU
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Dec. 31, 2011
LNG Terminal Capacity Agreements [Member]
Cheniere Marketing, LLC [Member]
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Dec. 31, 2010
LNG Terminal Capacity Agreements [Member]
Cheniere Marketing, LLC [Member]
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Nov. 30, 2006
LNG Terminal Capacity Agreements [Member]
Cheniere Marketing, LLC [Member]
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Dec. 31, 2012
Tug Boat Lease Sharing Agreement [Member]
Sabine Pass LNG, LP [Member]
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Dec. 31, 2012
Profit Category One [Member]
LNG Terminal Capacity Agreements [Member]
MMBTU
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Dec. 31, 2012
Profit Category Two [Member]
LNG Terminal Capacity Agreements [Member]
MMBTU
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Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Prepaid Expenses And Other [Member]
Fair Value, Inputs, Level 2 [Member]
LNG Lease Agreement [Member]
Cheniere Marketing, LLC [Member]
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Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Prepaid Expenses And Other [Member]
Fair Value, Inputs, Level 2 [Member]
LNG Lease Agreement [Member]
Cheniere Marketing, LLC [Member]
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Dec. 31, 2010
LNG Inventory Derivatives [Member]
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Dec. 31, 2012
LNG Inventory Derivatives [Member]
LNG Lease Agreement [Member]
Cheniere Marketing, LLC [Member]
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Dec. 31, 2011
LNG Inventory Derivatives [Member]
LNG Lease Agreement [Member]
Cheniere Marketing, LLC [Member]
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Dec. 31, 2012
Cooperative Endeavor Agreements [Member]
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Dec. 31, 2011
Cooperative Endeavor Agreements [Member]
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Jul. 31, 2007
Cooperative Endeavor Agreements [Member]
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| Related Party Transaction [Line Items] | ||||||||||||||||||||||||||||||||||||||
| Advances to Affiliate Current | $ 4,987,000 | $ 692,000 | ||||||||||||||||||||||||||||||||||||
| Regasification capacity | 4 | 2.0 | ||||||||||||||||||||||||||||||||||||
| Related Party Transactions, Commitments, Annual Reservation Fee Payment | 250,000,000 | |||||||||||||||||||||||||||||||||||||
| Proceeds (Payments) of Gross Margin Earned, Percentage | 80.00% | 20.00% | ||||||||||||||||||||||||||||||||||||
| Revenues—affiliate | 7,973,000 | 14,607,000 | 130,954,000 | 2,700,000 | 2,700,000 | 0 | 0 | 2,800,000 | 300,000 | 300,000 | 900,000 | 4,900,000 | 11,200,000 | 1,900,000 | 2,800,000 | |||||||||||||||||||||||
| Purchase Commitment, Excess And Uncommitted LNG Produced | 104,000,000 | 36,000,000 | 68,000,000 | |||||||||||||||||||||||||||||||||||
| Incremental LNG Volume, Purchase Price Percentage | 115.00% | |||||||||||||||||||||||||||||||||||||
| Incremental LNG Volume, Purchase Price Per MMBtu | 3 | |||||||||||||||||||||||||||||||||||||
| Liquefied Natural Gas Inventory | 1,369,000 | 1,527,000 | ||||||||||||||||||||||||||||||||||||
| LNG inventory related party | 4,420,000 | 4,369,000 | 4,400,000 | |||||||||||||||||||||||||||||||||||
| LNG inventory related party LCM adjustments recognized | 11,000,000 | 10,600,000 | 0 | 1,400,000 | 11,400,000 | |||||||||||||||||||||||||||||||||
| LNG Inventory Derivative assets | 232,000 | 1,610,000 | ||||||||||||||||||||||||||||||||||||
| Derivative gain (loss), net | 58,000 | (2,251,000) | 461,000 | 0 | 1,036,000 | 2,300,000 | ||||||||||||||||||||||||||||||||
| General and Administrative Expense Related Parties | 55,940,000 | 20,469,000 | 20,275,000 | 53,500,000 | 19,000,000 | 15,900,000 | ||||||||||||||||||||||||||||||||
| Related Party Transaction, Committed Monthly Fee | 130,000 | 83,333 | 541,667 | |||||||||||||||||||||||||||||||||||
| Related Party Transaction, Bonus Percentage Entitled Upon Meeting Certain Criteria | 50.00% | |||||||||||||||||||||||||||||||||||||
| Proceeds (Payments) Of Capital Expenditures Incurred | 0.60% | 2.40% | ||||||||||||||||||||||||||||||||||||
| Aggregate commitment under the Agreement | 25,000,000 | 25,000,000 | ||||||||||||||||||||||||||||||||||||
| Deferred Revenue Related Party Current | 696,000 | 688,000 | 14,700,000 | 12,300,000 | ||||||||||||||||||||||||||||||||||
| Related Party Transaction, Purchases from Related Party | $ 2,800,000 | $ 4,200,000 | ||||||||||||||||||||||||||||||||||||