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Consolidated Statements of Cash Flows (Parenthetical) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Statement of Cash Flows [Abstract]      
Accretion of interest on bond $ 5.0glng_Accretionofinterestonbond $ 4.7glng_Accretionofinterestonbond $ 4.0glng_Accretionofinterestonbond