Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments Derivative Instruments - Fair Value Inputs - Quantitative Information (Details)

v2.4.1.9
Derivative Instruments Derivative Instruments - Fair Value Inputs - Quantitative Information (Details) (Term Gas Supply Derivatives [Member], USD $)
 3 Months Ended
Mar. 31, 2015
Dec. 31, 2014
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Net Fair Value Asset $ 342,000us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet $ 342,000us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
Valuation Technique Income Approach  
Significant Unobservable Input Basis Spread  
Minimum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Significant Unobservable Inputs Range (0.350)lng_FairValueInputsBasisSpread
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember 		 
Maximum [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Significant Unobservable Inputs Range $ 0.046lng_FairValueInputsBasisSpread
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember