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ASSET UNDER DEVELOPMENT (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Capitalized Costs, Oil and Gas Producing Activities, Net [Abstract]      
Asset under development $ 1,177,489 $ 731,993  
Out of period correction     $ (1,579)
Hilli Conversion to FLNGV      
Capitalized Costs, Oil and Gas Producing Activities, Net [Abstract]      
Purchase price installments 962,709 653,378  
Interest costs capitalized 116,416 53,985  
Other costs capitalized (1) 98,364 24,630  
Asset under development 1,177,489 731,993  
Removal costs capitalized 9,800    
Asset retirement obligation 9,800    
Estimated cost to complete project 1,300,000    
Interest costs capitalized during period $ 62,400 $ 49,800