Annual report pursuant to Section 13 and 15(d)

Derivative Instruments - Fair Value of Derivative Instruments by Balance Sheet Location (Details)

v2.4.1.9
Derivative Instruments - Fair Value of Derivative Instruments by Balance Sheet Location (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
LNG Inventory Derivatives [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net $ 1,140us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_DerivativeInstrumentRiskAxis
= lng_LngInventoryDerivativesMember
$ (171)us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_DerivativeInstrumentRiskAxis
= lng_LngInventoryDerivativesMember
LNG Inventory Derivatives [Member] | Prepaid Expenses And Other [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net 1,140us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= lng_LngInventoryDerivativesMember
(171)us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= lng_LngInventoryDerivativesMember
Fuel Derivatives [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net (921)us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_DerivativeInstrumentRiskAxis
= lng_FuelDerivativesMember
126us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_DerivativeInstrumentRiskAxis
= lng_FuelDerivativesMember
Fuel Derivatives [Member] | Prepaid Expenses And Other [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net (921)us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= lng_FuelDerivativesMember
126us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= lng_FuelDerivativesMember
Term Gas Supply Derivatives [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net 342us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
0us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
Term Gas Supply Derivatives [Member] | Prepaid Expenses And Other [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net 76us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
0us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
Term Gas Supply Derivatives [Member] | Non-Current Derivative Assets [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net 586us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_BalanceSheetLocationAxis
= lng_NoncurrentDerivativeAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
0us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_BalanceSheetLocationAxis
= lng_NoncurrentDerivativeAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
Term Gas Supply Derivatives [Member] | Other Current Liabilities [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net (53)us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherCurrentLiabilitiesMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
0us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherCurrentLiabilitiesMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
Term Gas Supply Derivatives [Member] | Other Non-Current Liabilities [Member]    
Derivatives, Fair Value [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net (267)us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherNoncurrentLiabilitiesMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
0us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherNoncurrentLiabilitiesMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
Not Designated as Hedging Instrument [Member] | Non-Current Derivative Assets [Member]    
Derivatives, Fair Value [Line Items]    
Interest Rate Derivative Assets, at Fair Value 11,158us-gaap_InterestRateDerivativeAssetsAtFairValue
/ us-gaap_BalanceSheetLocationAxis
= lng_NoncurrentDerivativeAssetsMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember
98,123us-gaap_InterestRateDerivativeAssetsAtFairValue
/ us-gaap_BalanceSheetLocationAxis
= lng_NoncurrentDerivativeAssetsMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember
Not Designated as Hedging Instrument [Member] | Other Current Liabilities [Member]    
Derivatives, Fair Value [Line Items]    
Interest Rate Derivative Liabilities, at Fair Value $ (23,194)us-gaap_InterestRateDerivativeLiabilitiesAtFairValue
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherCurrentLiabilitiesMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember
$ (13,484)us-gaap_InterestRateDerivativeLiabilitiesAtFairValue
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherCurrentLiabilitiesMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember